• 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:
    COMBINATION OF TUBULAR SPEAR AND CUTTER AND METHOD OF CUTTING AND REMOVING A TUBULAR FROM AN UNDERGROUND LOCATION. The present invention relates to a cut and pull boom that is configured to obtain various handle positions in a tubular to be cut under tension. The wedges are mechanically adjusted with the help of drag blocks to retain the portion of the set at the same time that a mandrel (32) is manipulated. An annular seal is installed in conjunction with the wedges to provide control of the well during cutting. An internal deviation around the seal may be in the open position to allow circulation during the cut. The bypass can be closed to control the invasion of fluids in the well with mechanical manipulation while the seal remains installed. If the tubular does not come off after an initial cut, the lance can be cocked to come free and be replaced in another location. The mandrel (32) is opened for circulation while the wedges and seal are placed and the cut is being made. The cutting fragments are filtered before entering the bypass to keep the cutting fragments out of the systems (...).
    公开号:BR112013029239B1
    申请号:R112013029239-3
    申请日:2012-05-04
    公开日:2020-12-29
    发明作者:Stephen L. Crow；Marcelle H. Hendrik；Erik V. Nordenstam；Christopher W. Guidry
    申请人:Baker Hughes Incorporated；
    IPC主号:
    专利说明:

    FIELD OF THE INVENTION
    The present invention relates to tubular cutters that use before cutting to put the column in tension and more particularly to an adjustable tool with the ability to isolate the tubular with a seal when closing the seal deviation at the same time. which leaves the diversion open for circulation while the tubular is cut. BACKGROUND OF THE INVENTION
    When cutting and removing the liner or tubulars, a rotary cutter is employed which is driven from the surface or bottom of the well with a downhole motor. The cutting operation generates some debris and requires the circulation of fluid for cooling and to a lesser extent in order to remove debris. One way to meet the need for circulation is to avoid sealing the tubular above the cutter as the cut is being made. In these cases, the tubular being cut can also be in compression due to its own weight. Having the tube in compression is not desirable as it can prevent the cutting process by making the blade rotation more difficult as the cut progresses. Do not act the seal until the cut is produced as shown in USP 5,101,895 in order to allow circulation during the cut leaves the well open so that if a fluid invasion occurs while cutting the tube it makes it difficult to control the well quickly . Do not pick up 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 the cut following the descent of an object into the tool that allows the tool to be pressurized so that the lance can be adjusted after the cut is produced.
    Sometimes the liner or tubular is cut in a region where it is cemented so that the portion above the cut cannot be removed. In these situations, further cuts have to be made additionally in the coating or tubular. Some known designs are set to engage the holder with the body locking rings so that there is only one opportunity to position the tool in a maneuver. In the event that the casing or tubular does not release, the aforementioned tools have to be pulled from the well and forwarded to another maneuver.
    Although it is advantageous to have the opportunity to control the well in the event of fluid intrusion into the well, the laying of a tubular insulator in the past presented the associated problem of blocking the fluid circulation as the cut was being made.
    Another approach to making multiple cuts is to have multiple sets at predetermined spacing so that different cutters can be positioned in sequence. This configuration is shown at USP 7,762,330. They have the ability to cut in sequence and then take two cut pieces from a tubular in a single maneuver and then remove the cut segments together.
    USP 5,253,710 illustrates a hydraulically driven gripper that puts the tubular to be cut in tension so that the cut can be produced. USP 4,047,568 shows taking the tubular after cutting. Neither of the two previous references provides any capacity to control the well.
    Some designs use an expandable inflatable plug, but only after the cut is produced so that there is no control of the well as the cut is made. Other designs are limited by being seated only once so that if the liner does not come loose where cut, making further cuts requires a maneuver outside the well. Some configurations use an expandable plug against the black portion of the tubular as the resistive force that places the tubular being cut in compression and makes the cutting operation more difficult. Some configurations use a stop ring that requires advance spacings from the cutter blades to the stop ring. In essence, the bait ring is stopped at the top of a fish so that if the fish does not come loose when cut at that location, the tool has to be maneuvered out and reconfigured to cut at a different location.
    The last project is illustrated in figure 1. The cutter that is not shown is fixed on thread 10 to the rotating hub 12. Chuck 14 connects drive hub 16 to the rotating hub 12. Stop ring 18 interrupts the path for ahead when it is on top of the fish that is also not shown. When this occurs the weight is put to engage the castings 20 with castings 22 to drive a cam assembly 24 so that an interruption in the path of the cone 26 with respect to the wedges 28 can be moved out of the way so that a Subsequent gripping force will allow cone 26 to go below wedges 28 and catch the fish and keep it in tension while the cut is produced. Again, the local cut is always at a single fixed distance from the stop ring 18.
    Some configurations allow a handle on the tubular to pull the tension without using a stop ring, but they can only be adjusted once in one place. 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 hydraulically driven while leaving the mandrel open for circulation during cutting.
    What is necessary and provided by the present invention is the ability to make multiple cuts in a single maneuver at the same time that it provides a boom that is mechanically adjusted to reach into the tubular being cut above the local cut. Additionally, the expandable plug can already be positioned before the cut is initiated to provide control of the well, while also providing a diversion to allow circulation through the tool while cutting to operate other downhole equipment. The tubular to be removed is engaged before the cut and put in tension while the cut is taking place. These and other features of the present invention will become more apparent to those skilled in the art from an analysis of the detailed description and associated drawings while it is understood that the scope of the present invention must be determined from the appended claims. Summary of the Invention
    A cut and pull lance is configured to obtain various handle positions in the tubular to be cut under tension. The wedges are mechanically adjusted with the help of drag blocks to retain the portion of the set at the same time that the mandrel is manipulated. An annular seal is placed together with the wedges to provide control of the well during cutting. An internal deviation around the seal can be in the open position to allow circulation during the cut. The bypass can be closed to control a fluid invasion in the well with mechanical manipulation as the seal remains intact. If the tubular does not come off after an initial cut, the boom can be cocked to release and be reassembled elsewhere. The mandrel is opened for circulation at the same time that the wedges and the seal are placed and the cut is being made. The cut fragments are filtered before entering the bypass to keep the cut fragments out of the explosion prevention systems. Brief description of the drawings
    Figure 1 is a prior art boom configuration that uses a stop ring to seat the fish; figure 2 is a multiple adjustment boom that is mechanically adjusted to allow multiple cuts in a single maneuver; figure 3 is the preferred mode of the cutting and pulling spear with the annular seal and the deviation for the seal in the closed position; figure 4 is the view of figure 3 with the deviation for the seal shown in the open position. Detailed description of the preferred modality
    Referring now to figure 3, the boom S has a lower sub 30 to which the cutter illustrated schematically as C is fixed for tandem rotation. A mandrel 32 connects the lower sub to the drive sub 34. An outer housing 36 extends from castings 38 at the upper end to the bearing 40 at the lower end. Bearing 40 is used by the fact that the lower sub 30 will rotate as far as the liner or tubular (not shown) is cut at the same time that the sub 42 is stationary. Above sub 42 are doors 44 preferably covered by a wire mesh filter 46. Other filtering devices for cuts when the tubular is cut are provided. A waste pickup can also be located below the lower sub 30 that channels the return fluid that flows through cutter C and back towards the surface from the region where cutter C is operating. A variety of known rotary cutter configurations can be used with the potential need to modify them to a flow configuration through to allow a cut fragment removal flow. Several known debris pickup configurations 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. While seal 48 is preferably annular in shape that is axially compressed to an alternative seal position configuration with a debris pickup can involve a diverter for the debris-laden fluid that either does not completely seal or that seals in one direction such as a expandable glass. Alternatively, a debris trap with a diverter can be used in conjunction with the seal such as 48 while operating with diverter 50 in the open position.
    Doors 44 lead to an annular space 50 that extends to doors 52 which are shown as closed in figure 3 due to the O-rings 54 and 56 in sub 58 separating doors 52. A support sleeve 59 extends between the bearings 60 and 62 and circumscribes mandrel 32. Support sleeve 59 supports seal 48 and cone 64 and wedges 66. A key 68 locks cone 64 in sleeve 59. Sleeve 59 does not rotate. Wedges 66 are preferably segments with multiple actuation ramps such as 70 and 72 that engage surfaces engaged in a similar way in cone 64 to direct out wedges 66 evenly and distribute the reaction load from them when they are placed. Sleeve 59 has gasket seals 73 and 74 near the top end by bearing 62 for sealing against the rotating mandrel 32. End cap 76 is attached to sleeve 59 while providing support for bearing 62. The key - ve 78 in end cap 76 extends in a longitudinal groove 80 in the upper upper 82. Upper upper 82 is threaded 84 to sub 58 for axial tandem movement without rotation.
    The upper drag block segments 86 and lower drag block segments 88 retain the non-rotating outer assembly fixed against an applied force so that the mechanical manipulation of the mandrel 32 can drive the boom S as described below. Among the spaced drag block segments 86 is an automatic nut 90 which is also a series of spaced segments that have a thread pattern that faces and engages with thread 92 on chuck 32. Automatic nut 90 is a ratchet type device so that when the chuck 32 is turned to the right the segments of the automatic nut just jump over the thread 92. However, if the chuck 32 is turned to the left the automatic nut 90 engages the threads 92 and the upper sub 82 and sub 58 being forced by the key 78 from the axial rotation movement so that the O-ring seals 54 and 56 no longer move the doors 52 now shown in the open position in the figure 4. Simply adjusting the weight on the chuck 32 will close ports 52 in the event of fluid intrusion into the well.
    In order to adjust the wedges 66 and the seal 48 the weight is adjusted during the maneuver so that the castings 94 engage the castings 38 and the drive sub is rotated to the right by about 40 degrees. Using a combination of locking / slot mechanism in j 96, said movements allow with subsequent capture to bring the cone 64 under the wedges 66 with continuous traction force compressing the seal 48 against the surrounding tubular to be cut. At this point the relative movement between the sleeve 59 and the cone 64 is selectively locked. The tension force on mandrel 32 can be maintained when cutting by turning mandrel 32 to the right when picked up. Doors 52 can be opened before cutting while capturing and turning hose 32 to the left. When doors 52 are opened, the automatic nut 90 is no longer affected by the rotation of the chuck 32 to the right. As previously determined, doors 52 are closed when laying the weight, but wedges 66 and seal 48 remain even with the weight being deposited to close doors 52 in the event of a fluid invasion in the well. Eventually the wedges 66 and the seal 48 can be released by opposing axial movements of the mandrel 32 caused by physical force or by pressure cycles that additionally reconfigure the locking / slot mechanism combination in j 96 so that the force seating it will pull the cone 64 out from under the wedges 66 while allowing the seal 48 to grow axially while retracting radially. The boom S can be readjusted at other locations in the surrounding tubular to be cut any number of times and at any number of locations.
    It should be noted that in figure 2 the seal 48 is not used and neither the annular space 50. In this configuration, a single row of drag blocks 98 is used. The other operations remain the same.
    Those skilled in the art will note that the S-boom offers a number of unique and independent advantages. It allows for the ability to adjust and cut in multiple locations with the tubular to be cut under tension while maintaining the ability to circulate through hose 32 to drive cutter C and / or to remove cut fragments. The tool has the facility to collect the cut fragments and prevent them from reaching an overflow prevention system where they can cause some damage. The cut fragments can be retained in the configuration of figures 3 and 4 using the screen 46 leading to the doors 44 with the seal 48 adjusted so that the return flow is completely directed to the screen 46. In another embodiment such as figure 2 a debris or waste trap can be incorporated at the lower end which has a flow divider to direct the cutting fragments into the device where they can be retained and penetrated and the clean fluid returned to the annular space above diverter to maneuver to the surface. Another advantage is the ability to have the ring sealed with a deviation for returns as it provides 5 options when the fluid invasion in the well closes the diversion quickly at the same time that the seal 48 is still in place. triggered. In the preferred mode, this is done with seating to close doors 52. Note that none of the jobs will require the deviation 50 around the seal 48 to be opened during the cut.
    The above description is illustrative of the preferred embodiment and many modifications can be produced by those skilled in the art without deviating from the invention whose scope must be determined from the literal and equivalent scope of the claims below.
    权利要求:
    Claims (19)
    [0001]
    1. Combination of boom and tubular cutter, characterized by comprising: a mandrel (32) rotatably mounted in an external assembly (36), said mandrel (32) supporting a tubular cutter for cutting under tension of a tubular and having a flow passage through it that remains open for the fluid to flow towards the tubular cutter as said mandrel (32) rotates said tubular cutter; a mechanically operated anchor mounted on said external assembly (36) and configured to allow said external assembly (36) to enter the tubular for multiple positions and releases of the anchor with respect to the tubular in a single maneuver, so that said cutter can cut the tubular with the tensile force in the tubular applied through the mandrel (32) to the external assembly (36), when the mandrel (32) is kept axially stationary which is of a magnitude to at least support the weight of a tubular segment to be produced by the tubular cutter, and at different locations in the tubular; and an external assembly diverter (36) and bypass passage (50) around the diverter through the external assembly (36) which is normally open when the tubular cutter is operational and selectively closed to flow in opposite directions with movement mandrel (32) for well control so that the return fluid from the cutter, at least partly diverts from the anchor and diverter with the diverter in contact with the tubular and the tubular cutter is operational.
    [0002]
    2. Combination according to claim 1, characterized by the fact that: said external assembly (36) additionally comprises a drag assembly to support at least a portion of said external assembly (36) while said mandrel (32 ) is moved with respect to said external assembly (36).
    [0003]
    3. Combination according to claim 2, characterized by the fact that: the external assembly (36) comprises a cone to activate the anchor when the cone is advanced with respect to the anchor.
    [0004]
    4. Combination according to claim 3, characterized by the fact that: the anchor comprises at least one wedge; the outer assembly (36) comprises a locking assembly to prevent the relative axial movement of the cone with respect to the wedge being selectively released.
    [0005]
    5. Combination of boom and tubular cutter, characterized by comprising: a mandrel (32) rotatably mounted in an external set (36), said mandrel (32) supporting a tubular cutter for cutting under tension of a tubular and having a flow passage through it that remains open for the fluid to flow towards the tubular cutter as said mandrel (32) rotates said tubular cutter; a mechanically operated anchor mounted on said external assembly (36) and configured to allow said external assembly (36) to enter the tubular for multiple positions and anchor releases relative to the tubular in a single maneuver, so that the cutter it can cut the tubular with a tensile force in the tubular in different places in the tubular; an external assembly diverter (36) and bypass passage (50) around the diverter through the external assembly (36) which is normally open when the tubular cutter is operational and selectively closed to flow in opposite directions with mandrel movement (32) for well control so that the return fluid from the cutter, at least partly diverts from the anchor and diverter with the diverter in contact with the tubular and the tubular cutter is operational; said external assembly (36) additionally comprises a drag assembly to support at least a portion of said external assembly (36) while said mandrel (32) is moved with respect to said external assembly (36); the external assembly (36) comprises a cone to drive the anchor when the cone is advanced with respect to the anchor; the anchor comprises at least one wedge; the outer assembly (36) comprises a locking assembly to prevent the relative axial movement of the cone with respect to the wedge being selectively released; said mandrel (32) selectively engageable to the external assembly (36) for tandem rotation to cancel the lock, with the application of a pulling force to said mandrel (32), in which the cone moves under the said wedge to engage the wedge with the tubular.
    [0006]
    6. Combination according to claim 5, characterized by the fact that: the annulment of the lock comprises cycles of relative movement created by the physical force or pressure applied.
    [0007]
    7. Combination according to claim 1, characterized by the fact that it additionally comprises: a debris holding device supported by one of said mandrel (32), and said external assembly (36) through which the fluid sent through said flow passage to said cutter returns with the cutting fragments retained by the debris holding device.
    [0008]
    8. Combination according to claim 1, characterized by the fact that it additionally comprises: the diverter comprises a seal on the external assembly (36) selectively engaging the tubular when the anchor is moved against the tubular to close against the tubular when the cutter cuts the tubular.
    [0009]
    Combination according to claim 8, characterized by the fact that additionally comprising: said bypass passage (50) comprising a filter at an entrance thereof to exclude the cut fragments from the operation of the cutter.
    [0010]
    Combination according to claim 8, characterized in that it additionally comprises: the bypass passage (50) is closed with the lowering of the weight in the mandrel (32).
    [0011]
    11. Combination of boom and tubular cutter, characterized by comprising: a mandrel (32) rotatably mounted in an external set (36), said mandrel (32) supporting a tubular cutter for cutting under tension of a tubular and having a flow passage through it that remains open for the fluid to flow towards the tubular cutter as said mandrel (32) rotates said tubular cutter; a mechanically operated anchor mounted on said external assembly (36) and configured to allow said external assembly (36) to enter the tubular for multiple positions and anchor releases relative to the tubular in a single maneuver, so that the cutter it can cut the tubular with a tensile force in the tubular in different places in the tubular; an external assembly diverter (36) and bypass passage (50) around the diverter through the external assembly (36) which is normally open when the tubular cutter is operational and selectively closed to flow in opposite directions with mandrel movement (32) for well control so that the return fluid from the cutter, at least partly diverts from the anchor and diverter with the diverter in contact with the tubular and the tubular cutter is operational; the diverter comprises a seal on the outer assembly (36) selectively engaging the tubular when the anchor is moved against the tubular to close against the tubular when the cutter cuts the tubular; the bypass passage (50) is closed by lowering the weight on the mandrel (32); said bypass passage (50) is opened by rotating the mandrel (32) to raise a sleeve to discover at least one exit door in said bypass passage (50).
    [0012]
    12. Combination according to claim 11, characterized by the fact that additionally comprising: said sleeve is raised with the rotation of the mandrel (32) to the left to engage the thread on said mandrel (32) with the nut on said external assembly (36), in which the rotation of the mandrel (32) moves said sleeve axially to discover said door.
    [0013]
    13. Method of cutting and removing a tubular from an underground location, characterized by comprising: running in the tubular a cutter mounted on a mandrel (32) of a boom; unlock an anchor in an external assembly (36) of the said boom; mechanically position the anchor using a gripping force after said release to selectively engage a first desired location within the tubular; tension the tubular through said anchor as the said mandrel (32) is rotated to cut the tubular, as the flow is directed to the tubular cutter through the mandrel (32); divert the return flow from the tubular cutter through the external assembly (36) and around the positioned anchor and an associated seal when the seal is in contact with the tubular when cutting the tubular; selectively close, for well control, a bypass passage (50) through the external assembly (36) to deflect against the flow in opposite directions with movement of the mandrel (32); and configuring the anchor for repositioning in at least one other desired desired location in the tubular in the same maneuver, so that if the cut tubular does not come off after an initial cut, another cut can be produced in a different location.
    [0014]
    Method according to claim 13, characterized in that it comprises: leaving a flow passage through the mandrel (32) open when the tubular is cut by the cutter; flow the fluid through the passage to remove the cutting debris while the tubular is cut.
    [0015]
    15. Method according to claim 14, characterized by the fact that it comprises: removing the cutting fragments from the flowing fluid as it returns from the cutting site and through the external assembly (36).
    [0016]
    16. Method according to claim 13, characterized by the fact that it comprises: repositioning the anchor in a second location in the tubular for a second cut.
    [0017]
    17. Method according to claim 13, characterized by the fact that it comprises: during the diversion a seal that seals an annular space with a seal around the outer assembly (36) when the tubular is cut.
    [0018]
    18. Method according to claim 17, characterized by the fact that it comprises: providing a selectively open deviation around said vein when the tubular is being cut.
    [0019]
    19. Method according to claim 18, characterized by the fact that it comprises: filtering the cutting fragments to retain at least some of the fragments outside said diversion.
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112013029239B1|2020-12-29|combination of boom and tubular cutter and method of cutting and removing a tubular from an underground location
    AU2017201130B2|2018-09-13|Tubular cutting with a sealed annular space and fluid flow for cuttings removal
    BR112013029088B1|2021-01-26|combination of a boom and tubular cutter and method of cutting and removing a tubular from an underground location
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    同族专利:
    公开号 | 公开日
    US8869896B2|2014-10-28|
    GB201317335D0|2013-11-13|
    MY166413A|2018-06-25|
    GB201820140D0|2019-01-23|
    NO20131321A1|2013-10-08|
    GB2559694B|2019-08-07|
    GB2504400A|2014-01-29|
    GB2504400B|2019-03-13|
    BR112013029239A2|2017-01-31|
    GB2559694A|2018-08-15|
    AU2012256286B2|2017-02-02|
    US20120285684A1|2012-11-15|
    WO2012158367A2|2012-11-22|
    CA2834071A1|2012-11-22|
    GB2565958A|2019-02-27|
    AU2017200721B2|2017-10-19|
    GB201806849D0|2018-06-13|
    GB2565958B|2019-07-31|
    AU2017200721A1|2017-02-23|
    WO2012158367A3|2013-01-17|
    AU2012256286A1|2013-10-17|
    CA2834071C|2015-10-20|
    NO345162B1|2020-10-26|
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    法律状态:
    2018-12-11| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-11-19| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-09-29| B09A| Decision: intention to grant|
    2020-12-29| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 04/05/2012, OBSERVADAS AS CONDICOES LEGAIS. |
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    申请号 | 申请日 | 专利标题
    US13/107,638|US8869896B2|2011-05-13|2011-05-13|Multi-position mechanical spear for multiple tension cuts while removing cuttings|
    US13/107,638|2011-05-13|
    PCT/US2012/036454|WO2012158367A2|2011-05-13|2012-05-04|Multi-position mechanical spear for multiple tension cuts while removing cuttings|
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