• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    BRAKE SET FOR AN UNDERGROUND TOOL. The present invention relates to a lock that can hold a movable element in position for a stationary element (218) to maintain the adjusted position of the tool while being configured to release and still be able to be readjusted in the same maneuver to lock a position adjusted tool in the same or a new location.
    公开号:BR112014004708B1
    申请号:R112014004708-1
    申请日:2012-07-25
    公开日:2021-01-19
    发明作者:Stephen L. Crow；William A. Hered；Christopher W. Guidry
    申请人:Baker Hughes Incorporated；
    IPC主号:
    专利说明:

    FIELD OF THE INVENTION
    [001] The field of the invention is a locking device for an adjustable underground tool that can selectively lock a movable component to a fixed component in a single maneuver to selectively maintain an adjusted tool position and release selective tool for removal or relocation in a single maneuver. BACKGROUND OF THE INVENTION
    [002] When cutting and removing linings or tubulars, a rotary cutter is employed, which is driven from the surface, or from the bottom of the shaft with a downhole motor. The cutting operation generates some debris and requires cooling fluid circulation and, to a lesser extent, debris removal intentions. One way to accommodate the need for circulation is to avoid sealing the tubular above the cutter when the cut is being made. In these cases, the tubular being cut may also be in compression due to its own weight. Having the tubular in compression is not desirable, as this can impede the cutting process, making the blade rotation more difficult when the cutting progresses. Do not act a seal until the cut is made, as shown in USP and 5,101,895 to allow circulation during the cut, it leaves the well open so that, if a fluid invasion occurs during the cut of the pipe it becomes difficult to obtain quickly well control. Do not take the cut liner until the cut is made, so that the cut is made with the tubular in compression, is shown in USP 6,357,528. In this tool, there is circulation through the tool during cutting, followed by the dropping of an object into the tool to allow the tool to be pressurized so that the lance can be adjusted after the cut is made.
    [003] Sometimes the coating or tubular is cut in a region where it is cemented, so that the portion above the cut cannot be removed. In these situations, another cut should be made more up or down the lining or tubular. Some well-known designs are set to engage with body locking rings. In this case, there is only one opportunity to develop the tool in one maneuver. If the casing or tubular does not release, these tools must be pulled from the well hole and repaired for another maneuver.
    [004] Although it is advantageous to have the opportunity to control the well in the event of a fluid invasion, the adjustment of a tubular insulator has in the past presented the associated problem of blocking fluid circulation when the cut is being made.
    [005] Another approach to make different cuts is to have several sets in predominant spacing, so that different cutters can be developed sequentially. This project is shown at USP 7.762.330. It has the ability to cut sequentially and then take two cut pieces from a tubular in a single maneuver and then remove the cut segments together.
    [006] USP 5,253,710 illustrates a hydraulically actuated gripper that puts the tubular to be cut in tension, so that the cut can be made. USP 4,047,568 shows taking the tubular after cutting. Neither of the two preceding references provides any well control capabilities.
    [007] Some projects establish an inflatable shutter, but only after the cut is made, so that there is no well control when the cut is being made. Other designs that are limited by being adjustable only once, so that if the liner does not release where cut, making another cut requires a maneuver outside the well. Some designs fit a plug against the attached portion of the tubular as the resistive force. This method places the tubular being cut in compression, and makes the cut more difficult. Some designs use a stop ring that requires advance spacing from the cutting blades to the stop ring. In essence, a stop ring is stopped at the top of a fish (lost object) so that if the fish will not release when cut at that location, the tool must be maneuvered out and set up for a cut at a different location.
    [008] This last project is illustrated in figure 1. The cutter (which is not shown) is attached to the thread 10 at the bottom of the sub 12. The mandrel 10 connects the drive hub 16 to the bottom sub 12. The stop ring 18 for the walk forward when it rests on top of the fish (this is also not shown). When this happens, weight is adjusted to engage notches 20 with notches 22 to rotate a cam assembly 24, such that a stop for driving the cone 26 relative to the slides 28 can be moved out of the way. A subsequent gripping force will allow the cone 26 to go over the slides 28 that will catch the fish and keep it in tension while the cut is made. Again, the cut location is always at a single fixed distance to the location of the stop ring 18.
    [009] Some designs allow a handle on the tubular to tension without the use of a stop ring, however they can only be adjusted once in one location. Some examples are USP 1,867,289, 2,203,011 and 2,991,834. USP 2,899,000 illustrates a multi-row cutter that is actuated hydraulically while leaving the chuck open for circulation during cutting.
    [0010] A more recent example of a tubular cutter is found in WO 2011/031164 and uses sliders spaced around a sealing element for a tubular cutting tool. It has more limited functionality than the present invention, especially with regard to voltage cut-off and providing well control if there is an invasion of fluid from the well.
    [0011] While the locking aspect of the invention will be described in the context of the preferred embodiment which is a rotary tubular cutter, the applications for the locking set go beyond such a preferred application, and are applicable to underground tools that are recoverable, and which they need to be locked in an adjusted position and are releasable to be readjusted in the same maneuver or pulled out of the hole. In essence, the lock assembly locks a movable component to a stationary component to maintain the adjusted position, and the lock can be undone and reset so that it can lock the downhole tool again at the same or different location on the well, without having to leave the hole.
    [0012] A resettable lock in the context of a downhole isolation valve is shown in USP 7,210,534.
    [0013] In a tubular cutter embodiment of the invention there is the ability to make several cuts in a single maneuver while providing a boom that is mechanically adjusted to pick up above the cut location within the tubular being cut. In addition, the obturator can be developed before cutting is started, to provide well control and contour circulation through the tool during cutting, so that other downhole equipment can also be operated. The tubular to be removed is engaged before the cut and tensioned while the cut is taking place.
    [0014] In other versions the lock can be associated with an resettable shutter, a sub-carrier with a sliding sleeve valve, sieve sections with associated valve elements, or any other tool where movement of a moving element in relation to the stationary element occurs during adjustment of the tool. The other versions of this device also have the activity of locking their position and then releasing their position, in a way in which they can be locked again in the same maneuver or, alternatively, removed from the well bore.
    [0015] These and other aspects of the present invention will be more evident to those skilled in the art from a review of the detailed description and associated drawings, while understanding that the full scope of the invention must be determined from the appended claims. SUMMARY OF THE INVENTION
    [0016] In the preferred mode the lock is used in a cutting and traction lance configured to achieve several handles in a tubular to be cut under tension. A locking aspect maintains the adjusted position of the sliders and seal. The lock can be undone with an axial force that retracts a spring loaded clamp, and the lock can be readjusted to the entry position with the sliders and seal retracted, so that the set can be repositioned in the same maneuver for another cut. A cam surface prevents adjusting the sliders and seal until it is overcome after relocating the tool to the next desired cutting location, or to remove the borehole. The lock can be undone either by picking up or pressurizing over a dropped ball for an emergency release. A surface release signal is provided by a load shifting element or a plurality of such elements that must be overcome to release the lock. In other tools the lock can keep a moving element in position for a stationary element, to maintain the adjusted position of the tool while also being configured to release and still be able to be developed again in the same maneuver to lock an adjusted position of the tool in the same or in a new location. BRIEF DESCRIPTION OF THE DRAWINGS
    [0017] Figure 1 is a spear design of the previous technique that uses a stop ring to rest on the fish;
    [0018] Figure 2 is a multiple adjustment lance that is mechanically adjusted to allow for several cuts in a single spindle;
    [0019] Figure 3 is an alternative modality of the cutting and traction lance with the ring seal and the contour for sealing in the closed position;
    [0020] Figure 4 is a view of figure 3 with the sealing contour shown in the open position;
    [0021] Figures five 5a - 5b are a sectional view of an alternative and preferred embodiment using the releasable locking aspect as shown in the entry position;
    [0022] Figure 6 is a detailed view of the lock shown in the undone position during development;
    [0023] Figure 7 shows a detail of the stack of disk springs that are compressed to allow the lock of figure 6 to reach the locked position after the slides and sealing element are adjusted;
    [0024] Figure 8 shows a cam arrangement which, during the development of the cutting and traction lance, prevents the grip action from adjusting the slides and sealing until rotation undoes the cam arrangement;
    [0025] Figures 9a - 9b are a view of figures 5a - 5b with a rotation handle to allow the sliders and seal to adjust;
    [0026] Figures 10a - 10b are a view of figures 9a - 9b with additional handle for adjusting the slides and seal;
    [0027] Figure 11 shows the extended latch with the slides and seal adjusted as in figures 10a - 10b;
    [0028] Figures 12 a - 12b show the use of overdrive to compress the springs into disc and allow subsequent release of the seal and sliders by adjusting weight;
    [0029] Figures 13a - 13b show an emergency release by dropping a sphere to use pressure to compress the springs into disk in order to make the latch release in order to seal and sliders can be released with an adjusted weight;
    [0030] Figure 14 shows the lock retracted with a sleeve as a result of compression, of the disc springs shown in figures 12a - 12b or 13a - 13b;
    [0031] Figures 15a - 15b are an established view with the sliders and seal released just before a rotation locks the release position to allow movement of the cutting and traction and readjustment boom assembly without the possibility of acting while moving;
    [0032] Figure 16 shows the lock back to the entry position when again developing the set to another location in the same maneuver;
    [0033] Figure 17 is a detailed view of the lock in the entry position before the slides and the seal are actuated.
    [0034] Figure 18 is a view of figure 17 when a clamp moves in unison with a glove during the process of the slides and seal being adjusted;
    [0035] Figure 19 is a view of figure 18 with the sliders and seal adjusted and the clamp extended into a deeper groove to maintain its fit.
    [0036] Figure 20 is a view of figure 19 showing the grip force that compresses the disc springs and the sleeve with the shoulder, so that it can push on the clamp to allow the adjustment to be released;
    [0037] Figure 21 is a view of figure 20 showing the lock kept retracted when the weight is adjusted to release the sliders and the seal;
    [0038] Figure 22 is a view of Figure 21 showing the shoulder glove as when the weight is adjusted;
    [0039] Figure 23 is a view of Figure 22 showing the separation of the lock and the sleeve and the return of the entry position for possible repositioning in the well hole or removal of the associated tool;
    [0040] Figure 24 is an alternative locking mode in the entry position;
    [0041] Figure 25 is the lock of figure 24 with a lower end of a glove making contact with a mandrel shoulder;
    [0042] Figure 26 is the lock of figure 25 in a locked position with a claw engaging a groove in a mandrel;
    [0043] Figure 27 is the lock of figure 26 with the claw out of the groove and selectively connected to the glove;
    [0044] Figure 28 is the lock of figure 27 with the upper end of the sleeve contacting a second mandrel shoulder when the claw mounted on the sleeve moves after the groove in the mandrel;
    [0045] Figure 29 is the lock on Figure 28 reconfigured in the entry position of Figure 24. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
    [0046] Referring to figure 3, the boom S has a bottom sub 30 to which the cutter, illustrated schematically as C, is attached for rotation as well. An inner mandrel 32 connects the bottom sub to the drive sub 34. An outer subset 34 extends from notches 38 at the top end to the bearing 40 at the bottom end. Bearing 40 is used since bottom sub 30 will rotate when a liner or tubular (not shown) is cut, while sub 42 is stationary. Above the sub 42 there are doors 44 preferably covered by a coiled wire sieve 46. Other filtering devices for capturing cutouts when the tubular is cut are provided. A debris collector can also be located below bottom sub 30 to channel the return fluid flowing through cutter C and back towards the surface from the region where cutter C is operating. A variety of rotary cutter designs can be used with the potential to modify them for a flow-through design, to enable the removal of cutouts / debris. Several known waste collector designs can be used, such as those shown in USP 6,176,311; 6,276,452; 6,607,031; 7,779,901 and 7,610,957 with or without seal 48. Although seal 48 is preferably an annular shape that is compressed axially to a seal position, alternative designs with a debris collector may involve a diverter for debris driven into the fluid that either does not seal completely or that seals in one direction, such as a bowl shutter. Alternatively, a debris collector with a diverter can be used in conjunction with a seal such as 48, while operating with contour 50 in the open position.
    [0047] Doors 44 lead to an annular space 50 that extends to doors 52 which are shown as closed in figure 3 since the O-rings 54 and 56 in the sub 54 assemble the doors 52. An outer mandrel 59 extends between bearings 60 and 62 and surrounds inner mandrel 32. Outer mandrel 59 supports seal 48 or cone 64 and slides 66. A key 68 locks cone 64 to outer mandrel 59. Outer mandrel 59 only rotates slightly. Sliders 66 are preferably segments with several actuation ramps such as 70 and 72, which engage similarly inclined surfaces on the cone 64 to drive the sliders 66 equally, and distribute reaction load from them when they are adjusted. Outer mandrel 59 has boundary seals 73 and 74 near its upper end adjacent to bearing 62, to seal against rotating inner mandrel 32. Each cap 76 is attached to outer mandrel 59 while providing support for bearing 62. A key 78 in the end cap 76 it extends into a longitudinal groove 80 in the top sub 82. The top sub 82 is threaded from 84 to the sub 58 for axial tandem movement without rotation.
    [0048] Upper drag block segments 86 and lower drag block segments 88 keep the outer non-rotating assembly fixed against an applied force, so that mechanical manipulation of the inner mandrel 32 can actuate the boom S as will be described below. Between two spaced drag blocks segments 86 there is an automatic nut aspect 90 that consists of a series of spaced segments that have a threaded design facing and that selectively engages with a thread 92 in the inner mandrel 32. The automatic nut 90 is a ratchet type device and such that when the inner mandrel 32 is turned to the right two segments of the automatic nut 90 simply engage the thread 92. However, if the inner mandrel 32 is turned to the left the automatic nut 90 engages the threads 92. The sub top 82 and sub 58 being restrained by key 78 as to rotation, and wind up moving axially so that O-ring seals 54 and 56 no longer mount ports 52 now shown in the open position in figure 4. Simply adjust weight on the inner mandrel 32 will close ports 52 again in the event of a well fluid invasion.
    [0049] To adjust the sliders 66 and the seal 48, weight is adjusted during development, so that the notches 94 engage notches 38 and the drive sub 34 is rotated to the right a-approximately 40 °. Using a combination lock / slit-j 96 mechanism, these movements make it possible, when applying the gripping force subsequently, to move the cone 64 on the slides 66. Continuous traction force compresses the seal 48 against the surrounding tubular to be cut. At this point, the relative movement between the outer mandrel 59 and the cone 64 are selectively locked. By turning the inner mandrel 32 to the right while gripping, the pulling force on the inner mandrel 32 can be maintained when cutting. By taking and rotating the inner mandrel 32 to the left, the doors 52 can be opened before cutting. When doors 52 are open, automatic door 90 is no longer affected by the rotation to the right of inner chuck 32. In the event of a well fluid invasion, doors 52 are closed by adjusting the weight, however slides 66 and seal 48 remain adjusted even with the weight being applied. Eventually, the slides 66 and seal 48 can be released by an adjusting force that will pull the cone 64 out over the slides 66 allowing the seal 48 to grow axially while retracting radially. The S boom can be readjusted to other locations within the surrounding tubular any number of times and in any number of locations.
    [0050] It should be noted that in figure 2 the seal 48 is not used nor is the ring space 50 used. In this configuration a single row of drag blocks 98 is used. The other operations remain the same.
    [0051] Those skilled in the art will appreciate that the S-boom offers a number of exclusive and independent advantages. It allows to adjust and cut (under tension) at various locations within the tubular while retaining an ability to circulate through the inner mandrel 32 to energize cutter C and / or remove cutouts. The tool has the facility to filter out cutouts and prevent them from reaching an explosion preventer where they could cause damage. In the configuration of figures 3 and 4, the cutouts can be filtered using the sieve 46 that leads to the doors 44 with the seal 48 adjusted so that the return flow is completely directed to the sieve 46. In another embodiment, such as figure 2, garbage or debris collector can be incorporated in the lower end. Such a device should probably have a flow diverter to direct cutouts into the device where they could be sieved and retained. The clean fluid could be returned to the annular space above the diverter for maneuver to the surface. Another advantage of the S-boom is the ability to have the ring selectively sealed with 48 sealing. Doing so provides the functionality of closing the contour 50 quickly to mitigate the effects of a well fluid invasion. In this mode, closing doors 52 is carried out by applying an adjustment weight. Note that not all jobs will require that contour 50 around seal 48 be opened during cutting.
    [0052] Figures 5 - 16 illustrate an alternative and preferred embodiment of the present invention. The tool is divided into 11 sections numbered sequentially in figure 5a - 5b. Section 1 is a j-slot assembly 203 that interacts with the top sub 201 by means of selective pin engagement 250 in slot 252. Section 2 moves with section 1 and is a sleeve 206 that can be lifted to move seals spaced 254 and 256 away from port 258 on sleeve 209. Section 3 is a housing for drag blocks 212 and has an internal walking stop 260 on cam 215 which must be released by rotating cam 215. When sections 1 and 2 are rotated with a surface column (not shown) the drag blocks 212 keep section 3 stationary. This is shown in more detail in figure 8. Section 4 is the housing for the locking clips 216 shown in more detail in figure 6, which can jump into the groove 262 to lock the adjusted position of the slides 220 and the seal 223, 225 and 226. Sections 5 and 6 are respectively the housings for the slides 220 and the seals 223, 225 and 226. Section 7 contains the inlet for fluid contour and a sieve 227 that allows fluid to bypass the seals 223, 225 and 226 and penetrate the upper ring when port 258 is actuated open in section 2. Section 8 is the housing for the stack of disk springs 229 that are compressed when the grip force is applied to the top sub 201, allowing the clamps 216 to be pushed out of groove 262 by sleeve 219. This can best be seen by comparing figures 11 and 14. Section 9 is a roller bearing housing for bearing 205. Section 10 allows for an emergency release by dropping a sphere 264 that when p resection is applied, it moves the seat 232 to expose the doors 266 to compress the disc springs 229 and release the clamps 216. This is shown in figure 13b. Finally, section 11 is a thrust bearing 233 that facilitates the rotation of the sub-bottom 234 against the stationary piston chamber 231.
    [0053] The tool is designed so that the drag blocks 211 in section 3 will drag within the coating to be cut. The drag blocks hold section 3 in place, so that the outer mandrel 209 can be rotated a quarter of a turn. Establishing weight on the top sub 201 will align the ears of the top sub 250 with the axial portion of the groove 252 in the sub-groove-j 203. Rotation to the right from the top sub 201 is transformed into the sub in the groove-j 203 which is connected to the circulation sub 206. The circulation sub 206 is locked in rotation to the outer mandrel 209. The outer mandrel 209 has a cam 215 shown in detail enlarged in figure 8, which is also locked in rotation to the outer mandrel. 209. Rotation to the right causes the cam 215 to rotate while the sub-ear 214 which is connected to the drag sub 210 does not move, since the drag block 211 scrapes over the surrounding tubular (not shown). With the sub-ear 214 aligned with the cam 215 after rotating the cam 215 in the direction of the arrow 268, the outer mandrel 209 is allowed to move upwards since the surface 260 no longer acts as a walking stop for the sub-ear 214. This shown in figure 8. When the outer mandrel 209 moves up and thrust bearing 233 contacts piston housing 231, the components below the slide 220 will begin to move upwards while components above the slide 220 remain in place due to upper and lower drag blocks 211. Since the slider 220 is supported by the cone 221, continuous traction will adjust the slider 220 in the casing (not shown) and cause the shutter elements 223233 to adjust. The additional pull will compress disk springs 229 enough to leave locking clamp 216 open, as shown by comparing figures 6 and 11. With locking clamp 216 in the open position, the tool is locked in position, and force can be applied in compression and tension without fear of releasing sliders 220 or seal set 223-226. This can be useful if strikers (not shown) are developed above the pipe cutter and need to be reengaged by adjusting weight.
    [0054] Moving the inner mandrel section 201, 202 and 234 upwards causes thrust bearing 233 to contact piston housing 231 and continuous rotation to the right with tension allows the use of a cutter C below to cut the coating . The circulation / lock section 206, 258 can be opened, if necessary by lowering, the inner mandrel section 201, 202 and 234 in the j-slot 203 by turning to the left a quarter of a turn and lifting (see figures 12 to -12b) with the circulation sub 206, 258 open, fluids can be circulated back to the surface bypassing the fitted seal assembly 223-225 through the sieve 227 where cut debris is filtered.
    [0055] To release the tool, the locking clamp 216 must be relaxed. This is done with overdrive to overcome the disc springs 229. The glove clamp 219 (see figures 6, 11 and 14) for when it reaches the shoulder 270 (see figure 20) of the sub-ear 214. However, the clamp 216 and the outer mandrel 209 will continue upwards. This continued movement will cause the clamp 216 to fold under the clamp sleeve 219. When the inner mandrel section 201, 202 and 234 is moved downwards, it contacts the circulation j-slot 203 which moves downwards and contacts the sub of top of the outer mandrel 204 by moving the outer mandrel 209 downward with the clamp 216 trapped under the clamp sleeve 219 thus allowing the clamp 216 to pass through the groove 262 (compare figures 20 and 23). The outer mandrel section 206 will continue downward until circulation port 258 is closed. While the outer mandrel section 206 is moving downward, the clamp sleeve 219 will reach the bottom over the inner shoulder 272 of the clamp housing 218. This will allow locking clamp 216 to come out from under the clamp sleeve 219 and be ready to exit to slot 262 when the tool is adjusted again (see figure 23). Referring to figures 17 - 23, it can be seen that in the entry position of figure 17 the sleeve 219 is releasably attached to the outer mandrel 209 by a first lock 274 which can be a spring loaded ball or a C-ring with cam, or some other structure that holds parts together until a predetermined force is applied, and then releases. Other structures can be a disk spring or a pile of them. When a gripping force is applied to adjust the slides 220, the sleeve 219 is still retained by the first lock 274 for tandem movement with another mandrel 209, so that the clamp 216 can be snapped into the groove 262 to maintain the adjustment of the sliders and the seal. When section 201, 202 and 234 is still lifted to release the sliders and seal by compressing the stack of disk springs 229, sleeve 219 reaches stop 270 (see figure 20) and clamps 216 are pushed under sleeve 219 and out of slot 262. During this action the spring loaded ball locks 274m or the equivalent releases its grip shown schematically in figure 20. In figure 21 sleeve 219 now moves in tandem with outer mandrel 209 since a second lock (not shown) hold them together until the glove engages the inner shoulder 272. At this point the clamps 216 have moved below the groove 262 and additional downward movement of the clamps 216 occurs in relation to the glove 219 which is stopped by the inner shoulder 272. As As a result, clamps 216 can again be deflected out while spaced apart from sleeve 219 when the first lock 274, again selectively connects sleeve 219 to outer mandrel 209 shown in figure 23. Figure 23 and entry position of figure 17 are the same.
    [0056] The system locks in figures 17-23 can be used for a variety of tools that are resettable from downhole. The advantages are that the lock adjusts and adjusts with an axial force without the need for rotation. It employs an over-surface signal such as compression of the disk spring stack to retract the clamp under the displacement of the clamp sleeve and keeps it retracted when axial movement allows the clamp to be displaced free of the locking groove. The additional axial movement allows the clamps to return to the entry position for the next tool engagement in the adjusted position. As a result, the handle will adjust the tool and lock it selectively. Additional handle with a surface signal releases the lock. Axial and subsequent downward movement will readjust the lock to the free start position. Additional gripping can be accomplished by pulling force from the surface or by an alternate release, such as dropping a sphere onto a seat and pressurizing a piston to create axial movement, as will be explained below. Those skilled in the art will appreciate that the axial firing movements can also be reversed or can be a combination of up and down movements. The fact that there is no rotation is an advantage, especially in deviated well holes. The selective locking of the adjustment allows other operations such as the distribution of percussion blocks to take place without fear of losing the adjusted position. The lock secures a movable component such as 209 to a stationary component such as 218, to maintain the adjusted position with the ability to release the components to allow the tool to be unset and re-cocked while in the non-locked position, allowing the lock to function again in the same maneuver with the tool or repositioned in the borehole or in the same location. Optionally, the tool can simply be removed from the borehole after the lock is unlocked and the tool moves to the released position from the previously locked position.
    [0057] The same resettable locking mechanism can be achieved through the use of a claw in place of cams as shown in figures 24 to 29. In figure 24 a claw 300 mounted on a stationary component, which is not shown, is supported in a pre-bent state by a movable component 302 such as the outer mandrel of the cutting and traction lance, and is maintained in a sliding sleeve 314 with two selective locks 304 or 306. In figure 24, which is the entry position, the lock 306 keeps sleeve 314 on claw 300 when moving component 302 is pulled in the direction of arrow 306 (in order to adjust the slides and seal) claw 300 fits into a groove 308 on moving component 302 as shown in figure 26, and prevents movement of the moving component 302 in the reverse direction, as indicated by the arrow 310. This is the locked position of the anchor and is shown in figure 26. Additional traction of the moving component 302 in the direction of the arrow 303 supports the sliding sleeve 314 against the grinding component speed 302 on shoulder 312 thereby releasing the first selective lock 306 between the claw 300 and the sliding sleeve 314. The movement also allows the claw 300 to move out of the groove 308 and over the sliding sleeve 314 by engaging a second selective lock 304 to secure the sleeve 314 to the claw 300. This movement requires a certain threshold of force due to the folding of the claw 300, which serves as a surface signal that the lock has been overcome.
    [0058] Pushing the moving component 302 in the direction of the arrow 316 then allows the claw 300 to return to the position of figure 24, since the claw 300 remains mounted on the sleeve 314 until the sleeve 314 engages the groove 308 on the surface 318. At this point, lock 306 again secures sleeve 314 on claw 300. Continuing the movement of moving element 302 then returns claw 300 to the entry position shown in figure 24, which is the same as in figure 29. The process can be repeated to lock the claw 300 back to the movable component 302. The described configuration can be easily reversed, so that the claw 300 is supported by the stationary part that is not shown, and mounted to the movable component 302.
    [0059] Continuing now with the release procedure for the tubular cutter C, pushing continuously with the inner mandrel section 201, 202 and 234 without the clamp 216 taking over the slide housing 218 will allow the slider 220 and plug elements 223 -225 relax and the tool can be moved up and down the liner as needed. For the tool to move up freely, the inner mandrel section 201, 202 and 204 will need to be rotated a quarter turn to the left while pushing down to reengage cam 215 with sub-ear 214 (as shown in figure 8, which is the view before a quarter-turn rotation).
    [0060] Figures 13a - 13b show a secondary release method to release on the surface or to release in case of applying a traction force followed by a failure to release the sliders 220. A 264 ball is shown in Figures 13a - 13b which rests on seat 232. This figure also shows seat 232 in a position after it has been moved to expose port 266. Pressure applied then reaches piston 230 which then compresses disc springs 229 thus simulating the same effect as a grip force on the column. The clamps 216 will be retracted so that a subsequent adjustment force will extend the slides and seal assembly for a release. Then, a quarter turn to the left will lock the tool so that it will not reengage the surrounding tubular when it is repositioned for another cut or removed from the well hole.
    [0061] The above description is illustrative of the preferred modality, and several modifications can be made by those skilled in the art without departing from the invention, the scope of which must be determined from the literal and equivalent scope of the claims below.
    权利要求:
    Claims (27)
    [0001]
    1. Lock set for an underground tool characterized by comprises: a fixed component (218) of the tool; a mandrel component (10) selectively movable from the tool, movable to a first position in relation to the fixed component (218); a lock assembly operatively engaged with the components to lock the components together when the movable component (209, 302) is in the first position; the movable component (209, 302) capable of additional movement from the first position for the release of the components by means of the lock assembly in a second position, the additional movement also configuring the lock assembly to again lock the components between itself when the moving component (209, 302) is returned to the first position; the movement of the movable component (209, 302) to the first position to engage the lock assembly and the additional movement of the movable component (209, 302) from the first position to release the components is repeatable and axial without rotation.
    [0002]
    2. Lock set for an underground tool characterized by comprising: a fixed component (218) of the tool; a mandrel component (10) selectively movable from the movable tool to a first position in relation to the fixed component (218); a lock assembly operatively coupled to the components to lock the components together when the movable component (209, 302) is in the first position; the movable component (209, 302) capable of additional movement from the first position for the release of the components by the lock assembly in a second position, the additional movement also configuring the lock assembly to lock the components together again, when the moving component (209, 302) is returned to the first position; the movement of the movable component (209, 302) to the first position to engage the lock assembly, and the additional movement of the movable component (209, 302) from the first position to a second position to release the components is axial and at the same first direction.
    [0003]
    3. Assembly according to claim 2, characterized by the fact that: the additional movement of the movable component (209, 302) comprises the axial movement in a second direction opposite the first direction to a third position that crosses the first position.
    [0004]
    4. Assembly according to claim 3, characterized by the fact that: the lock assembly is disabled from locking the components together during the movement of the moving component (209, 302) in the second direction to the third position.
    [0005]
    5. Assembly according to claim 4, characterized by the fact that: the movement of the movable component (209, 302) from the third position back to the first position again allows the locking assembly to lock the components together.
    [0006]
    6. Assembly according to claim 5, characterized by the fact that: the lock assembly is locked by the initial relative movement between the fixed and movable components in a first direction that allows a claw to enter a groove in the movable component ( 209, 302) to prevent relative movement in a second direction opposite the first direction.
    [0007]
    7. Assembly according to claim 6, characterized by the fact that: continuation of the initial relative movement with a predetermined force moves the gripper from the groove.
    [0008]
    8. Assembly according to claim 7, characterized by the fact that: when leaving the groove, the claw mounts a sleeve, which prevents the claw from re-entering the groove by the relative movement in the second direction.
    [0009]
    9. Assembly according to claim 8, characterized by the fact that: the sleeve involves a travel stop after the groove moves beyond the claw.
    [0010]
    10. Assembly according to claim 9, characterized by the fact that: the sleeve is initially fixed immovably to the claw with a first locking member, and the initial relative movement releases the sleeve from the claw and allows the claw fit the groove; the initial relative movement occurs by the movement of the movable member in relation to the gripper, the movable member comprising a shoulder for engaging the sleeve to then release the first locking member; when the gripper moves out of the groove as the initial relative movement continues, the sleeve is blocked to the gripper by a second lock member.
    [0011]
    11. Assembly according to claim 10, characterized by the fact that: the second locking member is overcome after the groove moves beyond the claw while the claw is mounted on the sleeve; the movable member then brings the travel stop against the sleeve to allow the first locking member to reconnect the sleeve to the gripper so that the locking assembly is again ready for another cycle.
    [0012]
    12. Assembly according to claim 5, characterized by the fact that: the lock assembly further comprises at least an inclined clamp on one of the components and a groove on the other of the components.
    [0013]
    13. Assembly according to claim 12, characterized in that: the clamp is angled into the groove at the first position of the movable component (209, 302).
    [0014]
    14. Assembly according to claim 13, characterized by the fact that: the clamp moved out of the groove during movement from the first position in the first direction.
    [0015]
    15. Assembly according to claim 14, characterized by the fact that: the clamp is mounted on the same component as a retainer; the retainer moves selectively in conjunction with the clamp or relative to the clamp to cam the clamp out of the groove.
    [0016]
    16. Assembly according to claim 15, characterized by the fact that: the relative movement of the retainer in relation to the clamp occurs when the retainer engages at least one travel stop located on the component other than the component where the retainer is mounted.
    [0017]
    17. Assembly according to claim 16, characterized in that: the retainer engages a first travel stop as the movable element moves in the first direction to move over the clamp to retract the clamp from the groove.
    [0018]
    18. Assembly according to claim 17, characterized in that: the retainer covers the clamp in the movement of the movable member in the second direction to prevent the clamp from entering the groove until the clamp and the groove are out of alignment.
    [0019]
    19. Assembly according to claim 18, characterized by the fact that: the retainer engages a second travel stop as the movable member moves beyond the first position when they move in the second direction to move out of the clamp, after which subsequent alignment of the clamp with the groove tilts the clamp into the groove.
    [0020]
    20. Assembly according to claim 15, characterized by the fact that: the clamp and the retainer are mounted on the movable component (209, 302).
    [0021]
    21. Assembly according to claim 15, characterized by the fact that: the clamp and the retainer are mounted on the fixed component (218).
    [0022]
    22. Assembly according to claim 15, characterized by the fact that: the retainer comprises a sleeve.
    [0023]
    23. Assembly according to claim 22, characterized by the fact that: the sleeve is selectively maintained to its associated component by a first resettable retainer surpassed when the sleeve engages a travel stop.
    [0024]
    24. Assembly according to claim 23, characterized by the fact that: the sleeve engages with its associated component by the resettable retainer until the sleeve engages the first travel stop and moves over the clamp, whereby the clamp inclination retains the sleeve for movement of the movable component (209, 302) in the second direction until the sleeve engages the second travel stop to allow the resettable retainer to retain the sleeve at a location away from the clamp for subsequent locking of the components by the clamp when the movable component (209, 302) is moved again in the first direction.
    [0025]
    25. Assembly according to claim 24, characterized in that: the resettable retainer comprises a spring loaded ball or a broken ring.
    [0026]
    26. Assembly according to claim 23, characterized by the fact that: the sleeve is attached to its associated component by the first resettable retainer until the sleeve engages the first travel stop and moves over the clamp, whereby a second resettable retainer maintains a for moving the moving component (209, 302) in the second direction until the sleeve engages the second travel stop to allow the first resettable retainer to retain the sleeve at a location away from the clamp for subsequent locking of the components by the clamp when the movable component (209, 302) is moved again in the first direction.
    [0027]
    27. Assembly according to claim 26, characterized by the fact that: the resettable retainer comprises a spring loaded ball 5 or broken ring.
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112014004708B1|2021-01-19|lock set for an underground tool
    AU2017202623B2|2018-11-01|Multi-position mechanical spear for multiple tension cuts with releasable locking feature
    AU2017200721B2|2017-10-19|Multi-position mechanical spear for multiple tension cuts while removing cuttings
    AU2017201132B2|2018-09-13|Tubular cutting with a sealed annular space and fluid flow for cuttings removal
    AU2012256289B2|2016-11-10|Tubular cutting with debris filtration
    同族专利:
    公开号 | 公开日
    US20130048273A1|2013-02-28|
    WO2013032604A2|2013-03-07|
    GB201401035D0|2014-03-05|
    US8985230B2|2015-03-24|
    CA2843259C|2016-05-31|
    AU2012302211A1|2014-01-30|
    GB2507678B|2018-12-12|
    BR112014004708A2|2017-03-28|
    GB2507678A|2014-05-07|
    WO2013032604A3|2013-06-27|
    NO20140038A1|2014-01-27|
    CA2843259A1|2013-03-07|
    AU2012302211B2|2016-11-24|
    NO345164B1|2020-10-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1867289A|1931-03-13|1932-07-12|Ventresca Ercole|Inside casing cutter|
    US2203011A|1937-04-08|1940-06-04|Guy P Ellis|Pipe cutter|
    US2899000A|1957-08-05|1959-08-11|Houston Oil Field Mat Co Inc|Piston actuated casing mill|
    US2991834A|1957-08-21|1961-07-11|Thomas A Kennard|Cutting tool|
    US3399729A|1966-12-30|1968-09-03|Schlumberger Technology Corp|Retrievable well packer|
    US4047568A|1976-04-26|1977-09-13|International Enterprises, Inc.|Method and apparatus for cutting and retrieving casing from a well bore|
    US4149594A|1977-11-14|1979-04-17|Baker International Corporation|Retrievable bridge plug|
    IE56464B1|1984-03-02|1991-08-14|Smith International|Releasable spear for retrieving tubular members from a well bore|
    US4610300A|1984-09-14|1986-09-09|Baker Oil Tools, Inc.|Tubing actuated retrievable packer|
    US4709758A|1985-12-06|1987-12-01|Baker Oil Tools, Inc.|High temperature packer for well conduits|
    US5082062A|1990-09-21|1992-01-21|Ctc Corporation|Horizontal inflatable tool|
    US5086839A|1990-11-08|1992-02-11|Otis Engineering Corporation|Well packer|
    US5101895A|1990-12-21|1992-04-07|Smith International, Inc.|Well abandonment system|
    US5253710A|1991-03-19|1993-10-19|Homco International, Inc.|Method and apparatus to cut and remove casing|
    US5826657A|1997-01-23|1998-10-27|Halliburton Energy Services, Inc.|Selectively locking open a downhole tester valve|
    US6176311B1|1997-10-27|2001-01-23|Baker Hughes Incorporated|Downhole cutting separator|
    AU1850199A|1998-03-11|1999-09-23|Baker Hughes Incorporated|Apparatus for removal of milling debris|
    US6598678B1|1999-12-22|2003-07-29|Weatherford/Lamb, Inc.|Apparatus and methods for separating and joining tubulars in a wellbore|
    AU761233B2|1999-04-05|2003-05-29|Baker Hughes Incorporated|One-trip casing cutting & removal apparatus|
    US6662877B2|2000-12-01|2003-12-16|Schlumberger Technology Corporation|Formation isolation valve|
    US6655461B2|2001-04-18|2003-12-02|Schlumberger Technology Corporation|Straddle packer tool and method for well treating having valving and fluid bypass system|
    US6607031B2|2001-05-03|2003-08-19|Baker Hughes Incorporated|Screened boot basket/filter|
    GB0212696D0|2002-05-31|2002-07-10|Weatherford Lamb|Method of cutting tubulars|
    US6802374B2|2002-10-30|2004-10-12|Schlumberger Technology Corporation|Reverse cementing float shoe|
    US20060196679A1|2003-04-08|2006-09-07|Enventure Global Technology|Apparatus for radially expanding and plastically deforming a tubular member|
    CA2452858A1|2003-12-12|2005-06-12|Precision Drilling Technology Services Group Inc.|Hydraulic release running tool|
    US7210534B2|2004-03-09|2007-05-01|Baker Hughes Incorporated|Lock for a downhole tool with a reset feature|
    US7370703B2|2005-12-09|2008-05-13|Baker Hughes Incorporated|Downhole hydraulic pipe cutter|
    US7562700B2|2006-12-08|2009-07-21|Baker Hughes Incorporated|Wireline supported tubular mill|
    US7610957B2|2008-02-11|2009-11-03|Baker Hughes Incorporated|Downhole debris catcher and associated mill|
    US7762330B2|2008-07-09|2010-07-27|Smith International, Inc.|Methods of making multiple casing cuts|
    US8469097B2|2009-05-14|2013-06-25|Baker Hughes Incorporated|Subterranean tubular cutter with depth of cut feature|
    NO330750B1|2009-09-10|2011-07-04|Bruce Alan Flanders|Well tool and method for cutting and extracting a rudder portion from a rudder string in a well|
    US8869896B2|2011-05-13|2014-10-28|Baker Hughes Incorporated|Multi-position mechanical spear for multiple tension cuts while removing cuttings|US9638003B2|2010-10-15|2017-05-02|Schlumberger Technology Corporation|Sleeve valve|
    CA2755609A1|2010-10-15|2012-04-15|Grant George|Downhole extending ports|
    WO2014153314A1|2013-03-18|2014-09-25|Schlumberger Canada Limited|Sleeve valve|
    US9896908B2|2013-06-28|2018-02-20|Team Oil Tools, Lp|Well bore stimulation valve|
    US10422202B2|2013-06-28|2019-09-24|Innovex Downhole Solutions, Inc.|Linearly indexing wellbore valve|
    US9932781B2|2014-04-22|2018-04-03|Baker Hughes, A Ge Company, Llc|Casing spear with mechanical locking feature|
    US20170122063A1|2015-10-30|2017-05-04|Baker Hughes Incorporated|Sequential Packer Sealing Element and Slip Release Mechanism|
    WO2017105562A1|2015-12-14|2017-06-22|Schlumberger Technology Corporation|System and method for restricting liner hanger during load reversal|
    NO20160767A1|2016-05-06|2017-11-07|Umac As|A device for operation on a wellhead of a hydrocarbon well|
    US10385640B2|2017-01-10|2019-08-20|Weatherford Technology Holdings, Llc|Tension cutting casing and wellhead retrieval system|
    US10458196B2|2017-03-09|2019-10-29|Weatherford Technology Holdings, Llc|Downhole casing pulling tool|
    US11248428B2|2019-02-07|2022-02-15|Weatherford Technology Holdings, Llc|Wellbore apparatus for setting a downhole tool|
    WO2020161227A1|2019-02-07|2020-08-13|Ardyne Holdings Limited|Improvements in or relating to well abandonment and slot recovery|
    GB2589269B|2021-02-01|2021-11-10|Viking Completion Tech Fzco|Exercise tool|
    法律状态:
    2018-12-11| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-11-05| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-12-08| B09A| Decision: intention to grant|
    2021-01-19| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 25/07/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US13/222,165|US8985230B2|2011-08-31|2011-08-31|Resettable lock for a subterranean tool|
    US13/222,165|2011-08-31|
    PCT/US2012/048162|WO2013032604A2|2011-08-31|2012-07-25|Resettable lock for a subterranean tool|
    [返回顶部]