• 专利附录
  • 专利说明
  • 权利要求
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    • 专利摘要:
    DEVIL DRILLING EQUIPMENT, METHOD OF FIXING A DEVIL DRILLING EQUIPMENT IN A WELL HOLE, DEVIL DRILLING EQUIPMENT TO FIX A CEMENT BUFFER AND TO FACILITATE A DEVIL DRILLING OPERATION, METHOD OF FIXING A CLEARING METHOD PROVIDING A DRILLING OPERATION WITH SUBSEQUENTLY DEVIATION, DRILLING SYSTEM WITH DEVIATION, AND METHOD TO FACILITATE DRILLING WITH DEVIATIONOne technique facilitates drilling with diversion by eliminating one or more maneuvers inside the well. The technique comprises distributing a bypass drilling system within the well to a well hole and using a component of the bypass drilling system to grab a wall of the well hole. The bypass drilling system may comprise a whipstock assembly and a passage / stinger assembly in which the stinger assembly is designed to disconnect the whipstock assembly after distribution within the well. After disconnecting the stinger assembly, the bypass drilling system allows cement paste to be distributed across the stinger assembly to form a cement plug at a desired location.
    公开号:BR112012026499A2
    申请号:R112012026499-0
    申请日:2011-04-13
    公开日:2020-08-25
    发明作者:David L. ERVIN；Charles H. Dewey；John E. Campbell；Shantanu N. Swadi；Philip M. Gregurek
    申请人:Smith International, Inc.；
    IPC主号:
    专利说明:

    dj DRILLING DEVICE WITH DEVIATION, METHOD OF FIXING A DRILLING DEVICE WITH DEVIATION IN A WELL HOLE, DRILLING EQUIPMENT WITH DEVIATION TO FIX A PLUG CEMENT AND TO FACILITATE A DRILLING OPERATION WITH DEVIATION, METHOD TO FIX A CEMENT BUFFER AND PROVIDE A DRILLING OPERATION WITH SUBSEQUENTLY DEVIATION, DRILLING SYSTEM WITH DEVIATION, AND METHOD TO FACILITATE DRILLING WITH DEVIATION
    REMISSIVE REFERENCE TO RELATED ORDER This document is based on and claims priority for provisional order US serial number 61 / 325.068, filed on April 16, 2010. BACKGROUND 'The modalities disclosed here refer generally to whipstocks for drilling with a bypass. well bore. In particular, the modalities disclosed here refer to whipstock systems and methods. Traditionally, whipstocks have been used to drill drilled holes from an existing well hole. A whipstock has an inclined surface that is: adjusted in a predetermined position to guide a drill bit or drill column in a deflected way to drill the side of the well hole, which can also be called a bypass drill window or window. In operation, the whipstock is adjusted at the bottom of the existing well hole, the adjusted position of the whipstock is then searched, and the
    R 2/29 whipstock is properly oriented to direct the drill string in the proper direction. After adjusting the whipstock, a drill column is lowered into the well to engage with the whipstock causing the drill column to drill a bypass hole through an existing well hole wall. Other uses for whipstocks include bypass drilling of previously drilled and coated well holes that have become unproductive. For example, when a well hole becomes unusable, a new hole can be drilled in the vicinity of the existing coated well hole or alternatively, a new hole can be drilled by deviation from the repairable portion of the existing coated well hole. Drilling with deviation from a coated well hole can also be useful for developing multiple production zones. This procedure can be accomplished by laminating through the side of the liner with a laminator that is guided by a wedge or whipstock component. After finishing a drilling or milling procedure, the whipstock can be removed from the. well bore.
    Cement plugs can be seated in the "borehole. In bypass drilling operations to prevent hydrocarbons or other fluids from lower sections of the borehole from dripping beyond the whipstock site. The cement plug is seated below the whipstock to insulate
    = 3/29: lower sections of the well hole. Typically, a cement plug can be seated during a first trip into the well bore, after which the whipstock can be lowered into the well bore on a second trip. Therefore, existing operations employ two or more rock bottom trips.
    SUMMARY In general, the present invention provides a system and method for facilitating drift drilling by eliminating one or more bottom-hole trips. The technique comprises providing a borehole drift system in a borehole, and using a borehole component to grab a wall of the borehole. The bypass drilling system may comprise a whipstock set and a stinger set in which the stinger set is designed to disconnect the whipstock set after delivery to the bottom. After disconnecting the stinger assembly, oThe bypass drilling system allows cement paste to be delivered down through the stinger assembly. to form a cement plug at a desired location on the same bottom trip. BRIEF DESCRIPTION OF THE DRAWINGS Certain embodiments of the invention will be described below with reference to the accompanying drawings, where similar reference numerals indicate similar elements, and: | ã 4/29 - Figure 1 is a cross-sectional view of a drilling system with deviation according to the modalities of the present disclosure.
    Figure 2 is an enlarged cross-sectional view of a portion of the drilled system shown in Figure 1.
    Figure 3 is a schematic illustration of another example of a borehole system according to the modalities of the present disclosure.
    Figure 4 is a schematic illustration of another example of a borehole system according to the modalities of the present disclosure.
    Figure 5 is a schematic illustration of another example of a borehole system according to the modalities of the present disclosure.
    Figure 6 is a cross-sectional view of a set of rupture sub that can be used in a borehole system according to the modalities of the present disclosure.
    Figure 7 is a cross-sectional view taken. generally along line 7-7 of figure 6. i Figure 8 is a cross-sectional view taken ". generically along line 8-8 of figure 7.
    Figure 9 is a cross-sectional view of another example of a set of rupture sub that can be used in a drilling system with deviation according to
    . 5/29 7 with the modalities of the present disclosure. Figure 10 is a cross-sectional view taken generally along line 10-10 of Figure 9; and Figure 11 is a cross-sectional view taken generally along line 11-11 of Figure 10.
    DETAILED DESCRIPTION In the description that follows, numerous details are set out to provide an understanding of the present invention. However, it will be understood by those of ordinary skill in the art that the present invention can be put into practice without these details and that numerous variations or modifications to the described modalities may be possible. The present invention relates generally to a system and methodology designed to facilitate drilling operations with deviation in which one or more side well holes are formed with respect to another well hole, for example, with respect to a vertical well hole. According to one aspect, certain embodiments disclosed here refer to a bypass drilling system including a set of whipstock having a central hole through the. same and expandable anchoring set configured to be hydraulically driven and fixed at a specific depth in a well hole. The bypass drilling system can also comprise a removable flow blocking element, for example, a rupture disc, to limit a flow of fluid and to increase pressure in the
    . 6/29 7 central hole to drive the expandable anchor, for example, expandable wedges and / or packer. The bypass drilling system allows the whipstock to be fixed and a cement plug to be created in a single trip down the well into the borehole.
    Generically referring to the figures | and 2, cross-sectional views are provided from a drilled drilling system 100 having a central hole 102 therethrough according to the modalities of the present disclosure.
    In the illustrated embodiment, the bypass drilling system 100 comprises a set of whipstock 104 having an expandable anchoring set 106 fixed below the whipstock set. The whipstock assembly 104 comprises a ramp or drift slide with a deflection 105 formed to facilitate drilling a perforated window with deflection and a side well hole. The whipstock assembly 104 can be oriented around a central geometrical axis 101 in any direction (i.e., 360 °) so that a well drilled hole can be drilled in a desired direction. . The expandable anchor set 106 can be attached i to the whipstock set 104 via a connection - threaded 111. Alternatively, other types of connections can also be used. The expandable anchor assembly 106 comprises multiple wedges 107 that can be expanded radially outwardly to engage a
    . 7/29 7 surrounding borehole wall, such as a forming or cladding wall. The engagement of the wedges 107 with the surrounding borehole wall secures the drift assembly 100 in the desired location in the borehole. The wedges 107 can be hydraulically driven by increasing the pressure in the fluid in the central bore 102 to cause the wedges 107 to expand radially outward. However, wedges 107 can be driven by other techniques, for example, mechanical drive.
    A sub 108 of the bypass drilling system 100 can be constructed with a rupture sub having a removable element, for example, a rupture disk 112. As an example, sub 108 can be attached to a lower end of the expandable anchor assembly 106. The rupture disc 112 allows pressure to be increased in the central hole 102 to drive the expandable anchoring assembly 106. In this example, sub 108 contains any type of rupture disc 112 or other type of pressure control device having a membrane or constraint configured to fail at a predetermined pressure. Alternatively, oO. sub 108 may contain a piston-type shear release mechanism or other appropriate mechanism ”to release pressure at a predetermined level. The integration of the expandable anchor set 106 and the rupture sub 108 with the whipstock set 104 allows the bypass drilling system 100 to be
    . 8/29
    | located at any depth in a well hole because the expandable anchor assembly 106 can be adjusted to any desired location or well hole depth.
    In this way, the bypass drilling system 100 is capable of being arranged in a well bore at locations other than the bottom of the well and different from the top of a stationary object, for example, a “fish”, in the borehole. well.
    Referring again to Figures 1 and 2, methods of using the 100 bypass drilling system according to the modalities disclosed here include lowering the 100 bypass drilling system into the well hole to a specified location or depth of the well hole .
    As the bypass drilling system 100 is lowered into the well bore, fluid is circulated above the whipstock assembly 104 through a bypass valve (circulation valve) (not shown) for measurement purposes during drilling (“MWD”), for example, finding a specific desired borehole direction for drift drilling.
    Physical properties of the system. bypass drilling, such as bore pressure, temperature, and well bore path can be measured "while descending the 100 bypass drilling system into the well.
    Those skilled in the art will be familiar with MWD operations and methods of using the data collected to guide the drilling rig.
    |
    - 9/29
    “Deviation in the well bore.
    Based on the MWD data taken from the borehole, the whipstock assembly 104 can be oriented in a borehole so that the borehole ramp 105 faces in a direction in which the borehole borehole will extend.
    In alternative embodiments, a gyroscope guidance system can be employed to orient the whipstock assembly 104 in the well bore, for example, in a vertical well bore.
    Subsequently, an operator can increase the pressure in the central hole 102 of the bypass drilling system 100 by pumping a fluid into the central hole 102 and / or by cycling pumps to close the bypass valve.
    In certain embodiments, the fluid may be a drilling fluid.
    In alternative embodiments, the fluid used can be a separate drive fluid from a separate fluid source.
    If a separate drive fluid is used, the separate drive fluid is isolated, for example, by a lowering tool and a lowering tool piston (not shown). The fluid. flows down from the central hole to the rupture disc 112 (or another blocking element) which prevents the fluid from flowing further v and thereby allows an increase in pressure in the central hole 102. The increase in pressure is used to hydraulically drive the multiple wedges 107 of the expandable anchor assembly 106. For example, pressure causes
    - 10/29
    'that the wedges 107 radially expand and engage the surrounding borehole wall.
    Depending on the type of anchor assembly 106, various hydraulic pressure increases can be applied to the central hole 102 to force the wedges 107 to properly engage with the surrounding well hole wall and thereby secure the expandable anchor assembly 106 at the desired well hole.
    After the wedges 107 are radially expanded and engaged with the surrounding borehole wall, for example, forming or cladding, and the bypass drilling system 100 is properly fixed in the borehole, the rupture disc 112 in the rupture sub 108 can be ruptured by applying additional pressure.
    This allows the cementing operation to begin forming a cement plug in the well hole below the 100 bypass drilling system. In some applications, the rupture disc 112 can be broken by exerting an axial downward force on the whipstock assembly 104 in a mode that causes the shear pins 109 and 110 to fail.
    As an example, the shear pin 109 can be designed for. failure first followed by failure of the shear pin 110. As described in more detail below, the "shear pin shear 109, 110 (or other appropriate release element) can be used to release a descent set, for example, stinger assembly, 114 before pumping cement down through the
    : 11/29. central hole 102. This ensures easy recovery of the descent assembly 114 after the cementing operation. The cementing operation is designed to form and attach a cement plug to the well hole below or adjacent to the bypass drilling system 100 to isolate a lower section of the well hole from the bypass drilling region in which the borehole is located. side pit is formed. After cementation, a drill column having a drill is transferred at the bottom of the well to engage with a whipstock from the whipstock assembly 104. After the drill column is at the bottom of the well, the drilling operation can be initiated to form a drilled well with deviation with the aid of the whipstock set 104. The modalities of the present disclosure provide a perforation system with deviation that can simultaneously fix a set of whipstock and a cement plug in a single trip into the well hole. The bypass drilling system can be used at any location or depth of the well hole, unlike bypass drilling devices. that must be located at the bottom of well hole i or on top of a stationary object. By decreasing "the number of trips into the well hole, the time and costs associated with well holes deviated in drilling are reduced.
    With general reference to figure 3, another
    : 12/29 7 mode of drilling system with deviation 100 is illustrated. In this modality, the drift system with deviation 100 is illustrated as arranged in a well bore
    116. The bypass drilling system 100 comprises whipstock assembly 104 having a whipstock 118 comprising the ramp or bypass drilling slip 105. The whipstock assembly 104 may also comprise a variety of other components 120, such as an anchor spacer 122 The whipstock assembly 104 and the integral drift drilling system 100 can be transported at the bottom of the well into well hole 116 through stinger assembly 114. In this embodiment, stinger assembly 114 comprises a clamping tool 124 coupled to whipstock 118. The 15º stinger assembly 114 also comprises a stinger 126 that extends down into the whipstock assembly 104 to provide a cement paste along the central hole 102 to form the cement plug at a desired location on the along well hole 116, stinger assembly 114 is attached to whipstock assembly 104 or another component. by a release mechanism 127, such as the pins | shear 109 and / or 110 described with reference to V figure 1. However, other types of release mechanisms 127, for example, locks, can be employed. In this modality, the bypass drilling system 100 also includes expandable anchor 106 that can be
    : 13/29 7 coupled to anchor spacer 122 underneath whipstock assembly 104. Expandable anchor assembly 106 comprises expandable wedges 107 that can be selectively expanded against a wall 128 of borehole 116 to secure the drilling system with deviation 100 at a desired location along the well bore
    116. As an example, expandable wedges 107 can be expanded hydraulically by pressurizing fluid in the central bore 102 against a flow restriction element 130 that can be positioned in a rupture sub 132. Flow restriction element 130 can comprise rupture 112 or other appropriate flow restriction elements, such as a sphere dropped on a sphere seat at rupture sub 132, as discussed in greater detail below. The rupture sub 132 can be located below the expandable anchor 106. As illustrated, an end tube 134 can be positioned below the expandable anchor 106 to orient the cement paste to the desired well hole location for forming a cement plug. 136. As an example, the tube. terminal 134 is coupled to a lower end of rupture sub 132, although other components can be ”incorporated into this design. The length of the end tube 134 can be selected according to the desired placement of cement plug 136. It should be noted, however, that the drift system 100 can have a
    : 14/29 variety of configurations and use a variety of components to place the cement plug 136 in other desired locations along the well hole 116. For example, the bypass drilling system 100 can be used to place the cement 136 at a well hole bottom or at any of a variety of locations along well hole 116 separate from the well hole bottom. In operation, the bypass drilling system 100 shown in figure 3 is initially lowered into the hole to a desired clamping depth. The whipstock 118 is then guided with a measurement system during drilling or a gyroscope system, as discussed above. Once oriented, the pressure is increased along the central hole 102 to fix the expandable anchor 106 that holds the drift system 100 in the desired location along the well hole 116. After attaching to the expandable anchor 106, the pressure in the central hole 102 is enlarged to fracture or otherwise remove flow restriction element 130, thereby allowing cement paste to flow down through the system. bypass drilling.
    The stinger set 114 is then disconnected from the V whipstock set 104 by releasing the clamping tool 124 from the whipstock 118. The release of the clamping tool 124 can be achieved by separating, for example, shear, the release mechanism 127 that
    : 15/29. may be in the form of an appropriate shear element, for example, shear pins 109, 110. However, other types of release mechanism 127 may be employed to allow selective separation of stinger assembly 114 from the bypass drilling portion 100 that remains at the bottom of the well.
    After separation of stinger assembly 114, cement is pumped down through stinger 126 and through the bypass drilling system 100 to establish the cement plug 136 at the desired location in well bore 116, After the cement is pumped, the assembly stinger 114, including clamping tool 124 and stinger 126, is maneuvered out of the hole and removed.
    At this stage, a drilling set can be transferred at the bottom of the well to engage with whipstock 118 of whipstock set 104. Ramp 105 is designed to support the drilling set and orient the set laterally to facilitate drift drilling and formation of the desired side well hole.
    As an example, the ramp 105 of whipstock 118 may be concave and formed of a hard material, such as steel.
    Ramp 105 too. it can be tilted at a desired angle, for example, up to i 3º, designed to obtain the planned transition from ”drilling with deviation in the formation of the lateral well hole.
    Referring generally to Figure 4, another embodiment of the drift system 100 is illustrated.
    In this modality, the drilling system with
    . 16/29 "bypass 100 can again be disposed in well hole 116. The bypass drilling system 100 similarly comprises whipstock set 104 having whipstock 118 and bypass ramp 105. Whipstock set 104 and the drilling system with integral deviation 100, they can be transported from the bottom of the well into the borehole 116 through the stinger assembly 114. In this embodiment, the stinger assembly 114 again comprises a clamping tool 124 coupled to whipstock 118 and stinger 126. The stinger 126 extends down into the whipstock assembly 104 to provide a cement paste along the central hole 102 to form the cement plug at a desired location along the well hole
    116. The stinger assembly 114 is attached to the whipstock assembly 104 or other appropriate component by the release mechanism 127, for example, a shear mechanism which may be in the form of shear pins 109 and / or 110.
    In this embodiment, however, the expandable anchor 106 is in the form of a packer 140, like an inflatable packer,. positioned below the whipstock assembly 104. The i 140 packer is designed to seal against the surrounding Vs borehole wall 128 to provide a platform on which the cement plug 136 can be formed at a desired location above the bottom of the borehole. well 116. In the specific example illustrated, the whipstock set 104 and packer 140 are z 17/29
    ”Separated by additional components, such as an intermediate end tube 142 and a circulation sub 144. End tube 142 can be selected - to facilitate positioning of the cement plug in a desired location along well hole 116. The circulation sub 144 comprises one or more holes 146 through which the cement paste is expelled to create the cement plug.
    The holes 146 can initially be blocked by appropriate locking elements 148, such as a rupture disk.
    It should be noted that expansion of packer 140 can be achieved according to a variety of methods depending on the specific type of packer selected.
    For example, packer 140 may be a swelling packer, a mechanically driven packer, an inflatable packer, or other appropriate sealing elements designed to form a seal between The bypass drilling system 100 and the surrounding borehole wall 128 If pressurized fluid is required to fill the packer 140, a rupture sub 132 can be positioned below the packer or a ball and ball seat can be incorporated into the
    , inflatable packer. i The modality illustrated in figure 4 provides a safe ”V location of the cement plug place even when the cement plug is located significantly off the bottom.
    In addition, packer 140 is able to provide additional insulation even if cement plug 136 has
    : 18/29 Í integrity issues, for example, honeycomb formation. This type of design also allows for the use of a shorter cement plug, which in turn requires less end tube and less cement to create greater efficiencies in relation to the bypass drilling operation. In operation, the bypass drilling system 100 shown in figure 4 is initially lowered into the hole to a desired clamping depth. The whipstock 118 is then guided with a measurement system during drilling or a gyroscope system. Once oriented, the packer 140 is expanded against the surrounding borehole wall. As an example, a ball can be dropped to block the flow along central hole 102 which allows pressure to be increased to secure an inflatable packer. The pressure is then increased further to open the flow through the holes 146, for example, by fracturing locking elements 148, for example, rupture discs.
    The stinger set 114 is then disconnected from the whipstock set 104 by releasing the tool. attachment 124 of the whipstock 118. The release of the attachment tool 124 can be obtained, for example, by shearing the release element 127 which may be in the form of shear pins 109, 110. However, other types of release mechanisms 127 may be used to allow selective separation of stinger sets 114 to
    : 19/29
    'depart from the portion of the drilled drilling system 100 that remains at the bottom of the well.
    After separation of stinger assembly 114, cement is pumped down through stinger 126 and through the S 100 bypass drilling system until it flows out through holes 146 to a location above packer 140. This allows the cement plug 136 is established in a location above the packer.
    After the cement is pumped, stinger assembly 114, including clamping tool 124 and stinger 126, is maneuvered out of the hole and removed.
    In this stage, a drilling set can be transported to the bottom of the well to begin the drift operation stage with a bypass in which the side wall hole is drilled.
    With reference generally to figure 5, another 15th modality of the drilling system with deviation 100 is illustrated.
    In that embodiment, the bypass drilling system 100 can again be disposed in well bore 116. The bypass drilling system 100 similarly comprises the whipstock set 104 having whipstock 118 and bypass ramp 105. The set of. whipstock 104 and the integral drift drilling system 100 can be transported at the bottom of the well into the well bore 116 through stinger assembly 114 comprising clamping tool 124 and stinger 126. Stinger 126 extends down again into the whipstock assembly 104 to provide a 20/29 t paste along the central hole 102 to form the cement plug at a desired location along the well hole
    116. The stinger assembly 114 can be attached again to the whipstock assembly 104 or to another appropriate component by the release mechanism 127, for example, a shear mechanism that can take the form of shear pins 109 and / or 110. In this modality, however, the expandable packer 140, for example, an inflatable packer, is combined with another expandable anchor 150. The expandable anchor 150 can be constructed in a variety of configurations, however an appropriate modality uses a plurality of wedges 152 that can be expanded against the surrounding borehole wall 128. The expandable anchor 150 may be similar to that described above with respect to the expandable anchor assembly 106 used in the modalities of figures 1-3. Packer 140 is designed to seal against the surrounding borehole wall 128 to provide a platform on which cement plug 136 can be formed at a desired location above the bottom of borehole 116. However, a. additional expandable anchor 150 helps support the drift system with deviation 100 at the desired location in the hole of Cv well 116.
    In the specific example illustrated, expandable anchor 150 is located below whipstock assembly 104 and separated from whipstock assembly 104 by the
    : 21/29
    ”Anchor 122. Break sub 132 with flow restriction element 130 can be positioned under expandable anchor 150 and above inflatable packer 140. Expandable anchor 150 and packer 140 can also be separated by additional components, such as the end tube intermediate 142 and circulation sub 144, Terminal tube 142 can be selected to facilitate positioning the cement plug in a desired location along a well bore.
    As described above, the circulation sub 144 can comprise one or more orifices 146 through which the cement paste is expelled to create the cement plug.
    The holes 146 can initially be blocked by appropriate locking elements 148, such as rupture discs.
    It should again be noted that the expansion of the 15th packer 140 can be achieved according to a variety of methods depending on the specific type of packer selected.
    For example, packer 140 may be a swelling packer, a mechanically driven packer, an inflatable packer, or other appropriate sealing element designed to form a seal between the system. bypass drilling 100 and the surrounding well hole wall 128. If pressurized fluid is needed to "fill the packer 140, a rupture sub 132 can be positioned below the packer or a ball and ball seat can be incorporated into the packer inflatable.
    The modality illustrated in figure 5 uses anchor
    : 22/29
    expandable 150 to provide primary support, while packer 140 can serve as a secondary support element.
    In addition, packer 140 is able to provide additional insulation even if cement plug 136 has integrity issues, for example, honeycomb formation.
    This type of design also provides safe space outside the cement plug 136 especially when fixing the plug off the bottom of the well.
    This design also allows for the use of a shorter cement plug that, in turn, requires less end tube and less cement to create greater efficiencies in relation to the bypass drilling operation.
    In operation, the bypass drilling system 100 shown in figure 5 is initially lowered into the hole to a desired depth of 15º in the hole.
    The whipstock 118 is then guided with a measurement system during drilling or a gyroscope system.
    Once oriented, the pressure is increased in the central hole 102 to fix the expandable anchor 150. After fixing the expandable anchor 150, the pressure is additionally increased to. open the flow through rupture sub 132 by removing, for example, fracturing the flow restriction element 130. »The packer 140 is then expanded against the surrounding borehole wall, for example, by dropping a sphere to block flow along central hole 102 that allows pressure to be increased to secure a packer
    : 23/29 7 inflatable. However, packer 140 can have a variety of other configurations and can be fixed according to other techniques. The pressure is then increased further to open flow through the holes 146 by removing orifice blocking elements 148, for example, fracturing rupture discs.
    The stinger assembly 114 is then disconnected from the whipstock assembly 104 by releasing the clamping tool 124 from the whipstock 118. The release of the clamping tool 124 can be achieved, for example, by shearing the release element 127 which it may be in the form of shear pins 109, 110. However, other types of release mechanisms 127 can be employed to allow selective separation of the stinger assembly 114 from the portion of the drilled system 100 that remains at the bottom of the well . After separation of stinger assembly 114, cement is pumped down through stinger 126 and through the bypass drilling system 100 until it flows out through holes 146 to a location above packer 140, After the cement is pumped, o. stinger assembly 114, including clamping tool 124 and stinger 126, is maneuvered out of the hole and CV removed. At this stage, a drilling set can be transported to the bottom of the well to begin the bypass drilling operation stage in which the side well hole is drilled. It should be noted that in each of these z 24/29 7 modalities, the stiínger set 114 is separated from the whipstock set 104 before pumping cement to create the cement plug 136. In many applications, this technique can be extremely useful in avoiding recovery problems with respect to the clamping tool 124 and stinger 126. The design, configuration and arrangement of components in each modality of the bypass drilling system 100 can vary to suit the parameters or requirements of a given bypass drilling operation For example, a variety of rupture subs 132 can be used to control drilling fluid flow through the bypass drilling system 100 and to control drive of expandable anchors or other devices.
    With reference generally to figures 6-8, an alternative embodiment of sub rupture 132 is illustrated.
    As described above, the rupture sub 132 can incorporate a rupture disc, such as rupture disc 112, however, the embodiment illustrated in figures 6-8 provides an alternative rupture sub 132 that uses a set of. ball drop shear cylinder 154 having an internal flow through passage 155. The rupture sub 132 CV comprises a housing of sub 156 having an internal flow path 158 that forms part of the central hole 102 through which the cement paste can be passed.
    The internal flow path 158 is defined by a
    : 25/29 7 inner surface 160 which is designed with a shoulder 162. The shoulder 162 receives a pipe 164 that carries the ball drop shear cylinder assembly
    154. Piping 164 is secured against shoulder 162 by a retaining ring 166, and ball drop shear cylinder assembly 154 is removably attached to piping 164. In the illustrated example, the drop shear cylinder assembly ball 154 is temporarily attached to tubing 164 by a plurality of shear elements 168, as best illustrated in figures 7 and 8. Shear elements 168 may comprise threaded shear bolts in the 154 ball drop shear cylinder assembly. In the illustrated embodiment, the rupture sub 132 15º further comprises a residue screen 170 positioned in the internal flow path 158. The residue screen 170 can be dimensioned to Separate waste of a specific size. In addition, rupture sub 132 can have a variety of connection ends designed for engagement with other components of the drilling system. deviation 100. For example, an upper end of sub 132 may be shaped like a box end 172 having CV an internal threaded connector 174 designed to engage with the lower end of expandable anchor 106, with expandable anchor 150 or with other components of system. At an opposite end, the rupture sub 132 may comprise z 26/29 7 a pin end 176 having an externally threaded connector 178 similarly designed for connection with adjacent components in a variety of deviation drilling system modalities 100.
    In operation, the internal flow passage 155 of the ball drop shear cylinder assembly 154 can be left open during maneuvering of the borehole 100 drift system to allow free flow of well fluid through it. After the system 100 is in the desired position and ready for increased pressure, a ball 180 is dropped onto an upper ball seat 181 of the ball drop shear assembly 154 to create flow restriction element 130 (see figure 8) , thereby allowing increased pressure along the central hole 102 to drive, for example, the expandable anchor. Subsequently, the pressure can be additionally increased to shear shear elements 168 so that ball 180 and ball drop shear cylinder assembly 154 release and flow down through the borehole system to: bypass to release a path for the cement paste used to form cement plug 136. In other V embodiments, the ball drop shear cylinder assembly 154 may incorporate a rupture disk or other shear mechanism that fractures at a lower pressure than shear elements 168 for i 27/29: allow the application of two different pressure levels. With reference generally to figures 9-11, another alternative modality of sub rupture 132 is illustrated. In this embodiment, many of the components are similar to components described with reference to figures 6-8 and are labeled with the same reference numerals. The embodiment illustrated in figures 9-11 provides an alternative rupture sub 132 that utilizes flow restriction element 130 in the form of a cylinder 182 that is attached to tubing 164 to block a flow path 184 through tubing 164. In this similar embodiment , rupture sub 132 comprises sub 156 housing which includes internal flow path 158 as part of the central hole
    102.
    The internal flow path 158 is again defined by internal surface 160 having shoulder 162 to receive piping 164 which is fixed against shoulder 162 by retaining ring 166. Cylinder 182 is removably fixed to piping 164 by a plurality of shear elements 168 , as best illustrated in figures 10 and. 11. As an example, the shear elements 168 can comprise “shear screws threaded on C cylinder 182. In this modality mentioned last, rupture sub 132 can also comprise residue screen 170 positioned in the internal flow path 158. The modality
    : 28/29 Í mentioned last of rupture sub 132 can also have a variety of connection ends designed for engagement with other components of the 100 bypass drilling system. For example, the box end 172 can be located at one end top of the rupture sub 132, and the pin end 176 can be located at a lower end of the rupture sub. In operation, flow passage 184 in mandrel 164 is blocked by cylinder 182 during maneuvering of the borehole drilling system 100 at the bottom of the well. After the system 100 is in the desired borehole position, pressure can be immediately increased to secure the expandable anchor and / or other components. Subsequently, the pressure can be further increased to shear shear elements 168 so that cylinder 182 is removed to provide a path for the cement paste used to form the cement plug 136. Additional types of flow control subs 132 can be incorporated into the bypass drilling system
    100. Similarly, different numbers of anchors. expandables and flow control subs can be. used depending on the requirements of a given application ”V and the number of tools to be used in preparing the well for a diversion drilling operation. Various sealing elements, for example, inflatable packers, can be employed to facilitate the creation of | t 29/29 7 cement in many locations along the borehole above the bottom of the borehole. However, other bypass drilling applications may benefit from creating a cement plug at the bottom of the well hole. In some applications, the system allows cementing and drilling the side well hole at substantially the same time. As an additional example, cement paste can be provided to fill a region surrounding at least a portion of whipstock 118. The components and configurations of the bypass drilling system 100 can be adjusted accordingly to accommodate these various bypass drilling applications. .
    Although only a few embodiments of the present invention have been described in detail above, those 155 of ordinary skill in the art will readily recognize that many modifications are possible without departing "materially from the teachings of the present invention. Accordingly, such modifications are intended to be included in the scope of the present invention as defined in the claims.
    OK
    权利要求:
    Claims (33)
    [1]
    1. OFFSET DRILLING EQUIPMENT, characterized by comprising: a set of whipstocks in an open-bore hole; an anchoring assembly, the anchoring assembly being a non-sealing anchoring assembly configured to be driven and fixed to a specific depth in a well hole outside the bottom of the well hole; and a conduit through the drilling apparatus with diversion for the passage of cement; wherein the whipstock assembly and a cement plug can be fixed to the well bore in a single maneuver.
    [2]
    Bypass drilling apparatus according to claim 1, characterized in that the anchoring assembly comprises multiple wedges configured to expand and engage in a well hole wall.
    [3]
    Bypass drilling apparatus according to claim 1, characterized in that the anchoring assembly can be fixed at a specific hole depth.
    [4]
    Deviation drilling apparatus according to claim 1, characterized in that it also comprises a barrier blocking the flow through the conduit to allow the anchoring assembly to be fixed.
    [5]
    5. Drilling rig with deviation, according to
    BR claim 4, characterized in that the barrier comprises a frangible element.
    [6]
    Bypass drilling apparatus according to claim 4, characterized in that the barrier comprises a rupture disk.
    [7]
    Deviation drilling apparatus according to claim 4, characterized in that the barrier comprises a ball thrown into a ball seat positioned along the conduit.
    [8]
    8. METHOD OF FIXING A DRILLING DEVICE WITH DEVIATION IN A WELL HOLE, characterized by comprising: passing a set of whipstock and an anchoring set of the drilling apparatus with deviation to the well hole in a single maneuver; fix the anchor assembly to locate the whipstock assembly at a desired location in the well bore; And after fixing the anchor assembly, drain cement below the anchor assembly to create a cement plug in a well hole in the same maneuver inside the well.
    [9]
    Method according to claim 8, characterized in that it also comprises drilling a well hole traced laterally.
    [10]
    Method according to claim & 8, characterized in that the flow comprises creating the cement plug above a bottom of the well hole.
    [11]
    Method according to claim 8, characterized in that the fixing of the anchoring assembly comprises pumping a fluid to a central hole of the bypass drilling rig and increasing the fluid pressure therein.
    [12]
    Method according to claim 11, characterized in that it further comprises using a barrier element to allow increasing the pressure of fluid in the central hole.
    [13]
    13. Method according to claim 8, characterized in that it also comprises orienting the whipstock assembly in the well hole.
    [14]
    14. DRILLING DEVICE WITH DEVIATION TO FIX A
    CEMENT BUFFER AND TO FACILITATE A DRILLING OPERATION WITH DEVIATION, characterized by comprising: a set of whipstock; an expandable anchor assembly configured to be driven and fixed in a well bore, where the expandable anchor assembly includes a pressure control sub to drive the expandable anchor assembly; and a stinger assembly coupled to the whipstock assembly during passage in the bore, the stinger assembly having a stinger for transporting cement through the drilling rig with diversion to a desired well hole location;
    where during a single maneuver in the hole, the whipstock assembly is attached and the stinger assembly is disconnected from the whipstock assembly before distributing cement to form a cement plug.
    [15]
    15. Drilling apparatus with deviation, according to claim 14, characterized in that the expandable anchoring assembly is hydraulically driven.
    [16]
    Bypass drilling apparatus according to claim 14, characterized in that the expandable anchoring assembly comprises an expandable filling element.
    [17]
    Deviation drilling apparatus according to claim 14, characterized in that the pressure control sub includes a rupture disk or a mechanism activated 15º per sphere.
    [18]
    Deviation drilling apparatus according to claim 14, characterized in that it further comprises an end tube.
    [19]
    19. METHOD FOR FIXING A CEMENT BUFFER AND
    PROVIDE A DRILLING OPERATION WITH SUBSEQUENTLY DEVIATION, characterized by comprising: passing a whipstock set, an expandable anchoring set and a stinger set to a well hole in a single maneuver; orient the whipstock assembly to a desired azimuth; activate the anchoring set and fix a plurality of wedges; increasing the pressure of the hole to open a fluid passage to the bottom; release the stinger set from the whipstock set; after releasing the stinger set, pump cement through the stinger set; and recovering the stinger assembly leaving the remaining components in the well bore.
    [20]
    20. Method according to claim 19, characterized in that the orientation of the whipstock assembly comprises orienting with gyroscope equipment.
    [21]
    21. OFFSET DRILLING SYSTEM, characterized by the fact that it comprises: a passage set; a whipstock set separably coupled to the passage assembly; an expandable packer attached to the whipstock assembly, in which the expandable packer is fixed inside a well hole and the passage assembly is released from the whipstock assembly before dispensing a cement paste through the whipstock assembly to form a plug. cement below a drilled drilling region.
    [22]
    22. Bypass drilling system according to claim 21, characterized in that the whipstock assembly comprises a rupture sub with a ball seat or a rupture disc.
    [23]
    23. Bypass drilling system according to claim 21, characterized in that the whipstock assembly comprises a circulation sub located above the expandable packer.
    [24]
    24. Drilling system with diversion according to claim 21, characterized in that it additionally comprises an anchoring assembly separate from the expandable packer.
    [25]
    25. METHOD TO FACILITATE DRILLING WITH DEVIATION, characterized by comprising: passing a set of whipstock and an anchoring set inside the well in a stinger set in a single maneuver to a well hole; fix the anchoring set; release the stinger set from the whipstock set; and after releasing the stinger assembly, pump cement through the stinger assembly to form a cement plug.
    [26]
    26. Method according to claim 25, characterized in that the fixation comprises fixing an inflatable packer.
    [27]
    27. Method according to claim 25, characterized in that it further comprises circulating fluid through the stinger assembly while maneuvering into the well bore.
    [28]
    28. Method according to claim 25, characterized in that the release comprises shearing a shear element.
    [29]
    29. Method according to claim 25, characterized in that the pumping comprises pumping cement to a bottom of the well hole.
    [30]
    30. Method according to claim 25, characterized in that the pumping comprises pumping cement to a location below the anchoring assembly.
    [31]
    31. Method according to claim 25, characterized in that the pumping comprises pumping cement to a location above a sealing element to create a plug above the bottom of the borehole.
    [32]
    32. The method of claim 25, 15 characterized in that the pumping comprises pumping cement to fill around a whipstock of the whipstock assembly.
    [33]
    33. METHOD FOR FACILITATING DRIVING WITH DEVIATION, characterized by comprising: distributing a drilling system with deviation inside a well for a well hole; gripping a well hole wall with a component of the bypass drilling system; disconnect a stinger set from a whipstock set from the bypass drilling system; and after disconnection, pump cement through the stinger assembly to form a cement plug intended to facilitate a bypass drilling operation.
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    同族专利:
    公开号 | 公开日
    AU2011240646A1|2012-11-08|
    US20110253387A1|2011-10-20|
    CA2796454C|2018-07-10|
    GB201218633D0|2012-11-28|
    CA2796454A1|2011-10-20|
    GB2492696B|2018-06-06|
    US8820437B2|2014-09-02|
    WO2011130350A3|2011-12-22|
    WO2011130350A2|2011-10-20|
    AU2011240646B2|2015-05-14|
    GB2492696A|2013-01-09|
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    法律状态:
    2020-09-01| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
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    优先权:
    申请号 | 申请日 | 专利标题
    US32506810P| true| 2010-04-16|2010-04-16|
    US61/325,068|2010-04-16|
    PCT/US2011/032224|WO2011130350A2|2010-04-16|2011-04-13|Cementing whipstock apparatus and methods|
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