EP2959089A1 - Forage à colonne perdue perforée - Google Patents

Forage à colonne perdue perforée

Info

Publication number
EP2959089A1
EP2959089A1 EP14753496.0A EP14753496A EP2959089A1 EP 2959089 A1 EP2959089 A1 EP 2959089A1 EP 14753496 A EP14753496 A EP 14753496A EP 2959089 A1 EP2959089 A1 EP 2959089A1
Authority
EP
European Patent Office
Prior art keywords
drill string
liner assembly
liner
assembly
casing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14753496.0A
Other languages
German (de)
English (en)
Other versions
EP2959089A4 (fr
Inventor
Bill B. DUBOSE
Henry FOY
Matthew D. FLACH
Joshua A. BLANKENSHIP
Austin C. GROOVER
Russell A. WAGSTAFF
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Services Petroliers Schlumberger SA
Schlumberger Technology BV
Schlumberger Holdings Ltd
Original Assignee
Services Petroliers Schlumberger SA
Schlumberger Technology BV
Schlumberger Holdings Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Services Petroliers Schlumberger SA, Schlumberger Technology BV, Schlumberger Holdings Ltd filed Critical Services Petroliers Schlumberger SA
Publication of EP2959089A1 publication Critical patent/EP2959089A1/fr
Publication of EP2959089A4 publication Critical patent/EP2959089A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02—Subsoil filtering
    • E21B43/08—Screens or liners
    • E21B43/086—Screens with preformed openings, e.g. slotted liners
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes

Definitions

  • a well may be formed to extract natural resources such as oil, gas, water, minerals, and the like.
  • Such wells may be formed by drilling using drill pipe up to a certain depth, after which the drill pipe is removed and casing is run and cemented in the well. The operator may then drill the well to a greater depth with drill pipe, and cement another string of casing in place.
  • each string of casing may extend to a wellhead assembly at the surface of the well.
  • an operator may install a liner rather than another string of casing.
  • the liner is made up of joints of pipe in the same manner as casing, and the liner is also cemented into the well.
  • the liner does not extend back to the wellhead assembly at the surface. Instead, the liner is attached to a liner hanger coupled to the last string of casing just above the lower end of the casing.
  • the operator may later install a tieback string of casing that extends from the wellhead downward into engagement with the liner hanger assembly.
  • the operator may drill the well to the desired depth, retrieve the drill string, then assemble and lower the liner into the well.
  • a liner top packer may also be incorporated with the liner hanger.
  • a cement shoe with a check valve may be attached to the lower end of the liner as the liner is made up.
  • the operator may attach a liner hanger to the upper end of the liner, and attach a running tool to the liner hanger.
  • the operator may then run the liner into the well on a string of drill pipe that is attached to the running tool. Thereafter, the operator may set the liner hanger and pump cement through the drill pipe, down the liner, and back up an annulus surrounding the liner.
  • the cement shoe limits or prevents the flow of cement back into the liner.
  • the running tool may dispense a wiper plug following the cement to wipe cement from the interior of the liner at the conclusion of the cement pumping.
  • the operator may then set the liner top packer, release the running tool from the liner hanger, and retrieve the drill pipe.
  • a drilling system may include a liner assembly that has a central bore formed therethrough.
  • the liner assembly may include a slotted liner portion having a plurality of slots formed therethrough.
  • the drilling system may also include a drill string disposed at least partially within the central bore of the liner assembly, such that an annulus may be formed between the liner assembly and the drill string.
  • the drill string may be selectively engageable with the liner assembly.
  • a method of drilling may include drilling a wellbore to a pre-determined depth using a slotted liner drilling assembly.
  • the slotted liner drilling assembly may include a drill string engaged with a liner assembly.
  • the method may further include disengaging the drill string from the liner assembly and removing the drill string from the wellbore.
  • a method of drilling according to another embodiment of the present disclosure may include engaging a liner assembly with a drill string.
  • An annulus may be formed between the liner assembly and the drill string.
  • the method of drilling may also include drilling a wellbore with the drill string engaged with the liner assembly, circulating drilling fluid downhole through the drill string, and circulating the drilling fluid uphole through the annulus.
  • FIG. 1 is a side view of a liner assembly in accordance with one or more embodiments of the present disclosure.
  • FIG. 2 is a side view of a drill string in accordance with one or more embodiments of the present disclosure.
  • FIG. 3 is a partial cross-sectional view of the liner assembly of FIG. 1 engaged with the drill string of FIG. 2, according to one or more embodiments of the present disclosure.
  • FIG. 4 is a cross-sectional schematic view of the liner assembly of FIG. 1 engaged with the drill string of FIG. 2, according to one or more embodiments of the present disclosure.
  • FIG. 5 is a flow chart of a method of drilling according to one or more embodiments of the present disclosure.
  • One or more embodiments of the present disclosure are directed to drilling apparatuses, methods, and systems for drilling a wellbore, while simultaneously installing a slotted liner in the wellbore. More particularly, some embodiments of the present disclosure are directed to drilling apparatuses, methods, and systems to allow a wellbore to be drilled with a slotted liner, such that the slotted liner may not be installed in a separate process following drilling of the wellbore.
  • One or more embodiments of the present disclosure may further be directed to a slotted liner drilling assembly.
  • a slotted liner drilling assembly may be used to drill a wellbore while also positioning a slotted liner at a predetermined depth within the wellbore.
  • the slotted liner drilling assembly may include a slotted liner and a drill string. For example, drill string may be run into the wellbore, and may even drill the wellbore, while a slotted liner is simultaneously run into the wellbore. The drill string may be positioned within the slotted liner.
  • the slotted liner is disposed around the drill string in a manner that allows torque, axial force, weight, and other forces encountered during the drilling process to be borne primarily by the drill string and not the slotted liner. Because the torque, axial force, weight, and other forces encountered during drilling are borne primarily by the drill string, the slotted liner may be positioned in the wellbore during the drilling process, which may reduce the time for drilling the wellbore and commencing production.
  • a slotted liner drilling assembly may reduce the time for drilling the wellbore and beginning production by removing a process of separately running a slotted liner into the wellbore after the wellbore has been drilled and the drill string has been removed from the wellbore.
  • the drill string may be disengaged from the slotted liner, and the slotted liner may remain in the wellbore after a single drilling run. Having the slotted liner and/or casing downhole may also be useful during swelling or sloughing of the formation to facilitate maintaining the wellbore shape, integrity, or quality.
  • a liner assembly 100 is shown in accordance with an embodiment of the present disclosure.
  • the liner assembly 100 may include one or more casing sections and one or more slotted liner portions, as will be discussed in greater detail herein.
  • the liner assembly 100 may have a bore 123 (see FIG. 3) formed therethrough.
  • the bore 123 may be a central bore aligned with a central or longitudinal axis of the liner assembly 100, although in other embodiments the bore 123 may be offset from, or angled relative to, the central or longitudinal axis of the liner assembly 100.
  • the bore 123 may render the liner assembly 100 (or a component thereof) substantially hollow.
  • the liner assembly 100 may be configured to receive a drill string 110 at least partially through or within the bore 123.
  • the liner assembly 100 may include one or more segments of casing 101.
  • the segments of casing 101 may be tubular structures that are generally cylindrical in shape. In the illustrated embodiment, a segment of casing 101 is illustrated at the upper portion of the liner assembly 100.
  • a liner assembly 100 may include one or more segments of casing 101 at an intermediate or lower portion of the liner assembly 100.
  • a liner assembly 100 may include one or more segments of casing 101 at both the upper portion and the lower portion of the liner assembly 100, at multiple intermediate portions, or at one or more intermediate portions and one or more of the upper or lower portions of the liner assembly 100.
  • the segments of casing 101 may extend from the surface. For instance, the segments of casing 101 may extend to a casing profile nipple discussed in greater detail herein.
  • the one or more segments of casing 101 may be used (e.g., by an operator at the surface of the wellbore) to apply torque or axial force to the liner assembly 100. Further, in one or more embodiments, the one or more segments of casing 101 may be used to line and case the wellbore to increase structural rigidity and integrity, or isolate portions of the wellbore, after the wellbore has been drilled. In one or more embodiments, the one or more segments of casing 101 may be coupled together or engaged by way of couplings (e.g., threaded connectors). The one or more segments of casing 101 may be formed from carbon steel, stainless steel, aluminum, titanium, fiberglass, composite materials, other materials, or a some combination of the foregoing. In one or more embodiments, the one or more segments of casing 101 may replace or supplement drill pipe that may be used for a drilling operation.
  • the one or more segments of casing 101 may replace or supplement drill pipe that may be used for a drilling operation.
  • the liner assembly 100 may include a casing profile nipple 102.
  • the casing profile nipple 102 may be used to couple a segment of casing 101 to a perforated liner portion 103.
  • a first end of the casing profile nipple 102 may be coupled to a segment of casing 101 and a second end of the casing profile nipple 102 may be coupled to the perforated liner portion 103.
  • the connections between the segment of casing 101 and the casing profile nipple 102 and between the casing profile nipple 102 and the perforated liner portion 103 may take a variety of forms. For instance, the connections may be made by threaded interfaces, mating interfaces, welding, interference or friction fits, any other suitable mechanism, or some combination of the foregoing.
  • the casing profile nipple 102 may be configured for selective and secure engagement with a drill lock assembly of a drill string 110 (e.g., drill lock assembly 11 1 of FIG. 2), as discussed in greater detail herein.
  • the casing profile nipple 102 may include one or more slots, grooves, tabs, or other features on an interior surface such that engagement with a drill string 1 10 may allow torque, axial force, or weight applied to the liner assembly 100 to be transferred to the drill string 110.
  • the casing profile nipple 102 may include one or more slots or grooves formed on an inner surface of the casing profile nipple 102, and the drill string 110 may include one or more tabs or splines for engaging the slots or grooves.
  • an inner diameter of the casing profile nipple 102 may cooperate with an outer diameter of a portion of the drill string 100 (e.g., a drill lock component or assembly).
  • the inner diameter of the casing profile nipple 102 may be substantially identical, slightly larger than, or otherwise correspond to the outer diameter of a drill lock assembly or other portion of the drill string 110.
  • the corresponding diameters may allow for selective engagement between the casing profile nipple 102 and at least a portion of the drill string 1 10, and may result in secure engagement between the casing profile nipple 102 (and thus the liner assembly 100) and at least a portion of the drill string 1 10.
  • the secure engagement between the casing profile nipple 102 and the drill string 1 10 may link together the motions of the casing profile nipple 102 (and thus the liner assembly 100) and the drill string 110.
  • axial movement of the casing profile nipple 102 may result in or be associated with axial movement of the drill string 1 10, and vice versa.
  • rotational movement of the casing profile nipple 102 may result in or be associated with axial movement of the drill string 1 10, and vice versa.
  • coupling the casing profile nipple 102 to the drill string 110 may restrict and potentially prevent relative axial and/or rotational motion between the liner assembly 100 and a drill string 110 located therein.
  • a liner assembly 100 of embodiments of the present disclosure may include a perforated liner portion 103.
  • the perforated liner portion 103 of FIG. 1 includes a plurality of slots 104 formed therethrough. More particularly, the plurality of slots 104 may be a plurality of perforations, openings, gaps, or spaces formed through one or more walls of the perforated liner portion 103, and may provide for fluid communication between the bore 123 (see FIG. 3) and an outer annulus around the exterior of the liner assembly 100. Thus, fluid may pass from an outer surface of the liner assembly 100 through the slots 104 of the liner assembly 100 and to an inner surface of the liner assembly 100, and/or vice versa.
  • the plurality of slots 104 in the perforated liner portion 103 may be used to filter a formation fluid during production. In the same or other embodiments, the plurality of slots 104 may limit and control an amount of sand that may pass through the liner assembly 100 with a formation fluid.
  • the perforated liner portion 103 may include a single perforated liner segment, or, as illustrated, the perforated liner portion may include multiple perforated liner segments 105 coupled together.
  • the one or more perforated liner segments 105 may be coupled together in a variety of ways. For instance, the one or more perforated liner segments 105 may be coupled together by way of threaded interfaces, mating interfaces, welding, or any other suitable mechanism. In some embodiments, the one or more perforated liner segments 105 may be coupled together by one or more intermediate coupling components. As illustrated in FIG. 1, for example, the one or more perforated liner segments 105 may be coupled together by way of casing couplings 106. Similar to the other connections described herein, the connections between the one or more perforated liner segments 105 and the casing couplings 106 may take any suitable form (e.g., threaded interfaces, mating interfaces, welding).
  • the casing couplings 106 may act as, or be replaced by, one or more stabilizer or centralizer components.
  • the one or more stabilizer/centralizer components may have an outer diameter that is larger than an outer diameter of the perforated liner portion 103.
  • such components may engage the interior wall of the wellbore or a casing within a wellbore to stabilize and center the liner assembly 100 within the wellbore.
  • one or more embodiments of the liner assembly 100 may further include a casing shoe guide 107.
  • the casing profile nipple 102 may be separated from the casing shoe guide 107 by one or more segments of perforated liner portions 103.
  • the casing shoe guide 107 may be configured to selectively and securely engage with a portion of the drill string 110 (e.g., a casing shoe), as discussed in greater detail herein.
  • an inner diameter of the casing shoe guide 107 may be substantially identical or correspond to (or be slightly larger than) an outer diameter of a portion of the drill string 1 10 (e.g., the casing shoe).
  • the corresponding diameters and/or the selective engagement between the casing shoe guide 107 (and thus the liner assembly 100) and at least a portion of the drill string 1 10 may result in secure engagement between the casing shoe guide 107 and at least a portion of the drill string 110.
  • the secure engagement between the casing shoe guide 107 and the casing shoe or other portion of the drill string 110 may link together the motions of the casing shoe guide 107 (and thus the liner assembly 100) and the drill string 110, thereby restricting or potentially preventing relative motion between the liner assembly 100 and the drill string 1 10.
  • axial movement of the casing shoe guide 107 may result in or be associated with axial movement of the drill string 1 10, and vice versa.
  • rotational movement of the casing shoe guide 107 may result in or be associated with axial movement of the drill string 1 10, and vice versa.
  • both the casing profile nipple 102 and the casing shoe guide 107 may be selectively and securely engaged with the drill string 1 10.
  • Securing the perforated liner portion 103 to the drill string 110 at two locations may reduce the potential for structural damage to the perforated liner portion 103.
  • coupling the perforated liner portion 103 to the drill string 110 at axially offset locations may allow the structure of the drill string 110 to provide axial rigidity to the perforated liner portion 103.
  • coupling the perforated liner portion 103 to the drill string 110 at two locations and/or at one or more ends of the perforated liner portion 103 may allow the structure of the drill string 1 10 to provide rotational rigidity to the perforated liner portion 103. That is, coupling the perforated liner portion 103 to the drill string 1 10 at two locations may limit or even prevent opposing ends of the perforated liner portion 103 from rotating relative to one another, which could cause the perforated liner portion 103 to become twisted or damaged.
  • drill string 110 in accordance with embodiments disclosed herein is shown in additional detail.
  • the drill string is shown in additional detail.
  • the drill string is shown in additional detail.
  • the drill string 110 may be a retrievable drill string that may be used to drill and/or underream a wellbore.
  • the drill string 110 may include a drill lock assembly 1 11 for selectively coupling the drill string 110 to the liner assembly 100.
  • the drill lock assembly for selectively coupling the drill string 110 to the liner assembly 100.
  • the drill lock assembly 1 11 may include one or more locking mechanisms that may selectively and securely engage the drill lock assembly 1 11 with the casing profile nipple 102 of the liner assembly 100 shown in FIG. 1.
  • the drill lock assembly 1 11 may include vertical and/or horizontal locking dogs, slips, splines, or other features that may be actuated to engage with one or more slots or grooves formed in the casing profile nipple 102.
  • the grooves formed in the casing profile nipple 102 may therefore be longitudinal or annular grooves. Multiple grooves may also be longitudinally and/or circumferentially offset.
  • actuation of the drill lock assembly 1 11 of the drill string 110 may occur by way of any means known in the art (e.g., using a retrievable actuation tool, ball drop, dart, electrical signal, etc.), which may cause the one or more locking mechanisms to engage the casing profile nipple 102.
  • the drill lock assembly 1 11 may be actuated to cause the one or more locking dogs to extend or displace radially outwardly from the drill lock assembly 1 11.
  • Radially displacing one or more locking dogs of the drill lock assembly 1 11 may cause one or more of the locking dogs to engage with a portion of the liner assembly 100 (e.g., with one or more slots or grooves formed in the casing profile nipple 102).
  • deactivation of the drill lock assembly 1 11 may be performed by using any means known in the art.
  • An example deactivation of the drill lock assembly 11 1 may include causing one or more lock dogs to retract or displace radially inward and disengage from the liner assembly 100 (e.g., disengage from one or more slots or grooves formed in the interior surface of the casing profile nipple 102).
  • the drill lock assembly 11 1 may be actuated and de-actuated from the surface (e.g. , an operator or other controller at the surface) to at least partially control engagement of the drill string 1 10 with the liner assembly 100.
  • the drill string 1 10 may include one or more internal tandem segments 112.
  • the internal tandem segments 1 12 may be formed from steel, titanium, metal alloys, composite materials, any other suitable material, or some combination of the foregoing.
  • the internal tandem segments 1 12 may be used to limit undesired vibration of the drill string 110 during drilling operations, and may act as a stabilizer for the drill string 1 10 downhole.
  • the internal tandem segments 1 12 may have an outer diameter that is larger than an outer diameter of at least a portion of the drill string 1 10 may act as centralizers to keep the drill string 1 10 centered within the liner assembly 100 when disposed in the bore 123 (see FIG. 3).
  • the drill string 1 10 is shown as including two internal tandem segments 112— one coupled to a lower end of the drill lock assembly 11 1 and one coupled above a bottom hole assembly and a circulating sub 115.
  • Other embodiments of drill strings may include, however, a single internal tandem segment 1 12 or more than two internal tandem segments 112.
  • the drill string 110 may include one or more cross-over segments 1 13 coupled between the internal tandem segments 1 12 and an inner casing string 1 14.
  • the connections between the internal tandem segments 112, the cross-over segments 1 13, and the inner casing string 114 may be any suitable connection type (e.g., threaded interfaces, mating interfaces, welding).
  • the internal tandem segments 1 12 may be positioned both above and below the inner casing string 114, with the cross-over segments 1 13 coupling each internal tandem segment 112 to the inner casing string 1 14.
  • the inner casing string 1 14 (or a coupling between sections of the inner casing string 1 14) may have an outer diameter that is substantially identical to, or slightly less than, an inner diameter of the perforated liner portion 103 of the liner assembly 100.
  • the drill string 110 may include a circulating sub 115 below the lower internal tandem segment 1 12.
  • the circulating sub 115 may help guide the inner casing string 114 of the drill string 110 downhole.
  • the circulating sub 115 may be configured to engage with the casing shoe guide 107 of the liner assembly 100 shown in FIG. 1.
  • the circulating sub 1 15 may have one or more outer surfaces sized, shaped, with surface features, or otherwise configured to generally correspond to one or more inner surfaces of the casing shoe guide 107.
  • the circulating sub 115 may include one or more selectively actuatable locking mechanisms (e.g., vertical, axial, or annular locking dogs and/or slips) that selectively and securely engage the circulating sub 1 15 with the casing shoe guide 107.
  • the circulating sub 1 15 may include one or more casing shoes 119 that are configured to engage the casing shoe guide 107.
  • the one or more casing shoes 119 may be considered locking mechanisms that couple the circulating sub 1 15 to the casing shoe guide 107.
  • the one or more casing shoes 119 may include one or more sealing elements or sealing mechanisms that may restrict or even prevent fluid communication through the engagement between the circulating sub 115 and the casing shoe guide 107.
  • the one or more casing shoes 1 19 may include one or more annular sealing elements or sealing mechanisms that may restrict or prevent fluid flowing from beneath the one or more casing shoe 119 upwardly toward the surface in an annular region between the circulating sub 1 15 and the casing shoe guide 107.
  • the one or more casing shoes 1 19 may include one or more sealing elements or sealing mechanisms that may restrict or even prevent fluid flowing from above the one or more casing shoes 119 downwardly toward the bottom of the wellbore in the annular region between the circulating sub 1 15 and the casing shoe guide 107.
  • the one or more sealing elements or mechanisms of the one or more casing shoes 119 may include rubber seals, chevron seals, or any other suitable seal.
  • the circulating sub 115 may be activated to seal the one or more casing shoes 1 19 against the casing shoe guide 107 to restrict or prevent cuttings from getting inside of the liner assembly 100 through an inner annulus formed between the circulating sub 1 15 and the casing shoe guide 107.
  • the circulating sub 1 15 may be activated/de-activated independent of the activation/deactivation of the drill lock assembly 1 11.
  • the activation/deactivation of the circulating sub 1 15 and the drill lock assembly l l l may be linked together or dependent on one another.
  • the activation or deactivation of the circulating sub 1 15 may be linked to either the activation or deactivation of the drill lock assembly 11 1, while the other is not so linked.
  • the activations of the drill lock assembly 11 1 and the circulating sub 1 15 may be linked together, while the deactivations thereof may be independent of one another.
  • the circulating sub 115 may be activated by an obstruction such as a ball or dart, and may be used to seal the one or more casing shoes 1 19 against the casing shoe guide 107 to restrict or even prevent cuttings and fluid from getting inside of the liner assembly 100 through the inner annulus formed between the circulating sub 1 15 and the casing shoe guide 107.
  • the circulating sub 115 may be activated upon retrieval of the drill string 110 to clean debris that may have accumulated in one or more of the plurality of slots (i.e., slots 104) formed in the liner assembly 100.
  • the circulating sub 115 may include one or more ports 120 positioned above and/or below the one or more casing shoes 119. Once the circulating sub 115 is activated, the ports 120 positioned above and/or below the one or more casing shoes 1 19 may open and allow fluid pumped through the drill string 110 to exit the drill string 110 through the one or more ports 120. Fluid exiting through the one or more ports 120 may act as a fluid jet to clear the plurality of slots 104 formed in the liner assembly 100 of debris. Further, allowing fluid to exit the one or more ports 120 of the circulating sub 1 15 may limit or even avoid or prevent swabbing of the formation during retrieval.
  • the drill string 1 10 may include an underreamer 116.
  • the underreamer 116 may be a drilling-type underreamer configured to run in conjunction with a drill bit (e.g. , drill bit 118), or it may be an underreamer for use without a drill bit.
  • the underreamer 116 may include radially retractable arms, which may be used for cutting.
  • the radially retractable arms of the underreamer 116 may be selectively extended and held in position by hydraulic pressure (e.g., selective fluid flow through the drill string 110) and may be repositioned downhole for selective underreaming operations or retrieval from the wellbore.
  • the underreamer 116 may be used to increase the size of the wellbore drilled by the drill string 1 10. In one or more embodiments, when the underreamer 1 16 is actuated and engaged with a wall of the wellbore, an outer annulus between the wall of the wellbore and the exterior liner assembly 100 may be formed, which may allow passage of the liner assembly 100 during drilling.
  • the drill string 110 may include one or more logging-while-drilling (LWD) or measurement- while-drilling (MWD) tool(s) 1 17.
  • LWD logging-while-drilling
  • MWD measurement- while-drilling
  • the drill string 1 10 includes a tool 1 17 below the underreamer 116. It will be appreciated that the drill string 1 10 may include any of a variety of LWD or MWD tools, and that such tools may be positioned at any suitable location along the drill string 1 10.
  • the drill string 1 10 may include a drill bit 1 18 positioned below the LWD/MWD tool(s) 1 17.
  • the drill bit 1 18 may be a fixed cutter drill bit. Fixed cutters made of polycrystalline diamond (PCD), tungsten carbide (WC), cubic boron nitride (CBN), or other materials may be coupled to a b body of the drill bit 1 18.
  • the drill bit 1 18 may be a roller cone bit, a percussion hammer bit, or any other suitable type of drill bit.
  • the underreamer 1 16, the LWD/MWD tool(s) 117, and the drill bit 1 18 may be considered to be part of a bottomhole assembly (BHA) 121.
  • BHA bottomhole assembly
  • the slotted liner drilling assembly 122 may be a drilling assembly.
  • the engaged slotted liner drilling assembly 122 may include a drill string 1 10 disposed within and engaged with a liner assembly 100.
  • the drill string 1 10 may be disposed within the central bore 123 formed through the liner assembly 100.
  • the drill string 110 may be concentric with the liner assembly 100, although the drill string 1 10 may be otherwise positioned in other embodiments.
  • annulus may be formed between the liner assembly 100 and the drill string 1 10 of the engaged slotted liner drilling assembly 122.
  • a portion of the drill string e.g., one or more of the underreamer 1 16, the LWD/MWD tool(s) 1 17, or the drill bit 1 18 may extend below the liner assembly 100.
  • the liner assembly 100 may include a casing profile nipple 102
  • the drill string 1 10 may include a corresponding drill lock assembly 1 11 configured to engage with the casing profile nipple 102 of the liner assembly 100.
  • the drill lock assembly 11 1 of the drill string 110 may be actuated by suitable means or mechanism (e.g., using a retrievable actuation tool, ball drop, dart, electric signal, etc.), which may cause one or more locking dogs, slips, or other components to extend or displace radially outwardly from an outer surface of the drill lock assembly 11 1.
  • Radially displacing one or more vertical, axial, annular, or other locking dogs or slips of the drill lock assembly 1 11 may cause one or more of the locking dogs to engage with a portion of the liner assembly 100.
  • one or more slips may engage directly against the inner surface of the casing profile nipple 102, or one or more engagement features 124 (e.g., locking dogs or slips) may engage the casing profile nipple 102.
  • Slips may, for instance, expand to engage the inner surface of the casing profile nipple 102, whereas locking dogs or other similar components may enter one or more slots or grooves 125 formed in the casing profile nipple 102.
  • any suitable means or mechanism may be used to de-actuate the drill lock assembly 111, which may cause one or more slips, locking dogs, or other engagement features 124 to retract or otherwise displace radially inward and disengage from the liner assembly 100 (e.g., disengage from one or more slots or grooves 125 formed in the casing profile nipple 102, or from an interior surface of the casing profile nipple 102).
  • the drill lock assembly 1 11 may be actuated and de-actuated from the surface (e.g., an operator or controller at the surface) to control engagement of the drill string 110 with the liner assembly 100.
  • the drill string 1 10 may no longer be engaged with the liner assembly 100, and the drill string 110 may be retrieved from the wellbore, thereby leaving the liner assembly 100 in the wellbore.
  • the drill string 110 may provide structural reinforcement for the liner assembly 100. Disposing and securing the drill string 110 at least partially within the liner assembly 100 may allow a substantial portion of any torque, axial force, weight, or other forces applied to or encountered the liner assembly 100 (e.g., torque, axial force, or weight applied to the casing segments 101), and potentially the entirety of such forces, to be transferred to the drill string 110.
  • the structural reinforcement provided to the liner assembly 100 by the drill string 110 may allow the liner assembly 100 to be positioned in the wellbore during drilling operations. As such, the perforated liner portion 103 of the liner assembly 100 may not experience torque, axial force, weight, or other forces that may otherwise cause the plurality of slots 104 to collapse, plug, or buckle during drilling operations.
  • the torque, axial force, weight, or other forces applied to or encountered by the liner assembly 100 may be transferred to the drill string 110 via the engagement between the drill lock assembly 11 1 and the casing profile nipple 102 and/or between the engagement between the casing shoe guide 107 and the one or more casing shoes 119.
  • torque, axial force, weight, or other forces may be applied to the casing 101 of the liner assembly 100 from the surface, which may be transferred to the drill string 110 and to the drill bit 1 18.
  • the BHA 121 may include a bit release tool positioned above the drill bit 1 18.
  • the bit release tool may be used to decouple the bit 1 18 from the drill string 1 10. For instance, once the wellbore has been drilled to a desired depth, the bit release tool may be activated to decouple the drill bit 1 18 from the drill string 1 10.
  • the bit release tool may be activated using one or more of hydraulic, mechanical, or electrical mechanisms (e.g., retrievable actuation tool, ball drop, dart, etc.). Once the drill bit 118 has been released, the rest of the drill string 1 10— including the remaining portions of the BHA 121— may be retrieved.
  • the drill lock assembly 1 11 and/or the casing shoes 1 19 may be de- actuated to disengage the drill string 1 10 from the liner assembly 100.
  • the drill string 110 may then be withdrawn from the wellbore and the liner assembly 100, leaving the liner assembly 100 in place in the wellbore.
  • This may also allow the liner assembly 100 to be positioned in the wellbore at a predetermined depth (e.g., total depth, a production location, etc.), without transferring damaging loads to the liner assembly 100 and without having to make separate drilling and liner placement runs.
  • the circulating sub 115 of the drill string 1 10 may be disposed within and engaged with the casing shoe guide 107 of the liner assembly 100.
  • the circulating sub 1 15 may include one or more casing shoes 1 19 that restrict or even prevent fluid flow through an inner annulus formed between the circulating sub 115 and the casing shoe guide 107 of the liner assembly 100.
  • At least one of the one or more ports 120 may be positioned above the one or more shoe seals 119 so as to be positioned within the liner assembly 100. Fluid pumped through the drill string 110 and out of the upper port(s) 120 may flow uphole between the liner assembly 100 and the drill string 1 10. In some embodiments, at least some of the fluid pumped out of the upper port(s) 120 may pass through the plurality of slots 104 out of the liner assembly 100, such as to clean out the slots 104.
  • At least one of the one or more ports 120 may be positioned below the one or more shoe seals 1 19. Fluid pumped through the drill string 1 10 and out of the lower port(s) 120 may flow uphole between the liner assembly 100 and the wellbore. In some embodiments, at least some of the fluid pumped out of the lower port(s) 120 may pass through the plurality of slots 104 into the liner assembly 100, such as to clean out the slots 104.
  • the drill bit 1 18 may also include one or more ports or nozzles through which fluid may be pumped.
  • the casing shoes 119 may restrict or prevent the drilling fluid from passing between in the inner annulus between the circulating sub 115 and the casing shoe guide 107.
  • the casing shoes 1 19 may divert fluid exiting the lower port(s) 120 toward an outer annulus formed between the wellbore 109 and the liner assembly 100.
  • the slotted liner portion 103 may be positioned below the casing profile nipple 102 and below the at least one casing segment 101.
  • the drilling fluid may be restricted or prevented from flowing uphole through the inner annulus at a location formed between the liner assembly 100 and the drill string 110 until the drilling fluid passes radially through the slotted liner portion 103 of the liner assembly 100.
  • the slotted liner portion 103 may include a plurality of slots 104 formed therethrough, which may allow the drilling fluid flowing uphole to pass radially from the outer annulus formed between the wellbore 109 and the liner assembly 100 into the inner annulus formed between the liner assembly 100 and the drill string 110.
  • the drilling fluid may be circulated uphole through the inner annulus formed between the liner assembly 100 and the drill string 1 10, through the casing profile nipple 102, and through the at least one casing segment 101 to the surface.
  • the casing shoes 1 19 may direct the fluid exiting the upper port(s) 120 uphole through an inner annulus formed between the liner assembly 100 and the drill string 110.
  • the fluid flowing out of the upper port(s) 120 may pass through the slots 104 and into the outer annulus formed between the liner assembly 100 and the wellbore 109.
  • the drilling fluid may be filtered through the slotted liner portion 103 (e.g., through the plurality of slots 104) of the liner assembly 100 when the drilling fluid is circulated uphole.
  • a method 150 may be used for drilling and completing a well, and may include disposing a drill string in a slotted liner assembly 151.
  • a drill string e.g., drill string 1 10 of FIG. 2
  • a slotted liner assembly e.g., slotted liner assembly 100 of FIG. 1.
  • the drill string when the drill string is disposed in the slotted liner assembly, at least a portion of the drill string, such as a drill bit, underreamer, bottomhole assembly, etc. may extend out of a lower end of the slotted liner assembly.
  • the method 150 may also include coupling the slotted liner assembly to the drill string 152. Coupling the slotted liner assembly to the drill string may be accomplished in various ways. For instance, the slotted liner assembly and the drill string may have corresponding, mating, or engageable surfaces. In some embodiments, selectively actuatable locking mechanisms (e.g., drill lock assemblies, locking dogs, expandable/retractable slips, etc.) may be used to couple the slotted liner assembly to the drill string. Coupling the slotted liner assembly to the drill string may also include forming one or more seals between components of the slotted liner assembly and the drill string.
  • selectively actuatable locking mechanisms e.g., drill lock assemblies, locking dogs, expandable/retractable slips, etc.
  • a seal may be formed between a portion of the slotted liner assembly (e.g., casing shoe guide 107) and a portion of the drill string (e.g., circulating sub 1 15).
  • the one or more seals may be formed using various sealing mechanisms (e.g., casing shoe 1 19), whether selectively actuatable or not.
  • the method 150 may also include drilling a wellbore 153.
  • a slotted liner drilling assembly e.g., slotted liner drilling assembly 122 that includes a drill string engaged with a slotted liner assembly may be used for drilling a wellbore.
  • Drilling a wellbore 153 may be accomplished by engaging a drill bit (e.g., drill bit 118) with the earth and applying torque, axial force, weight, or some other force to the slotted liner assembly (e.g., via drill string 1 10 or casing 101).
  • the torque, axial force, weight, or other force applied to the slotted liner assembly may be transferred from the slotted liner assembly to the drill string.
  • the torque, axial force, weight, or other force may be transferred from the slotted liner assembly to the drill string by way of the engagement between the slotted liner assembly and the drill string.
  • the torque, axial force, weight, or other force may be transferred from the slotted liner assembly to the drill string by way of locking and/or sealing mechanisms that couple together and/or form seals between the slotted liner assembly and the drill string.
  • a substantial portion of the torque, axial force, weight, or other force is transferred from the slotted liner assembly to the drill string at a location above a slotted liner portion (e.g., slotted liner portion 103) of the slotted liner assembly.
  • a slotted liner portion e.g., slotted liner portion 103
  • transferring the torque, axial force, weight, or other force from the slotted liner assembly to the drill string at a location above a slotted liner portion can limit or even prevent the slotted liner portion or slots (e.g., slots 104) formed therein from collapsing, plugging, buckling, or otherwise being damaged.
  • a slotted liner assembly may be used simultaneously and in combination with a drill string to drill a wellbore to a predetermined depth.
  • a method 150 of drilling and completing a well may also include circulating fluid 154.
  • fluid may circulated through a slotted liner drilling assembly by pumping fluid down through the drill string and out of the drill string through one or more ports (e.g., ports 120). The ports may remain open or may be selectively opened.
  • seals may be activated to limit or prevent the flow of the fluid between certain components of the slotted liner drilling assembly.
  • a circulating sub e.g., circulating sub 115
  • seals e.g., casing shoes 119
  • annulus formed between the circulating sub and a casing shoe guide or other component of a slotted liner assembly.
  • fluid may be pumped out of the drill string through one or more ports.
  • one or more of the ports may be disposed inside the slotted liner assembly (e.g., upper ports above a sealing mechanism).
  • the fluid that flows out of these port(s) may flow uphole through an inner annulus formed between the slotted liner assembly and the drill string.
  • the fluid may flow from the inner annulus between the slotted liner assembly and the drill string, through slots in the slotted liner assembly, and uphole through an outer annulus formed between the wellbore and the slotted liner assembly.
  • one or more of the ports may be disposed outside of the slotted liner assembly (e.g., lower ports below a sealing mechanism).
  • the fluid flowing out of lower port(s) may flow uphole through an outer annulus formed between the slotted liner assembly and the wellbore.
  • the fluid may flow from the outer annulus between the slotted liner assembly and the wellbore, through the slots in the slotted liner assembly, and uphole through an inner annulus formed between the drill string and the slotted liner assembly.
  • Circulating fluid through the slotted liner drilling assembly may assist with cleaning debris or cuttings from the slots in the slotted liner assembly. For instance, as fluid flows between the inner annulus formed between the drill string and the slotted liner assembly and the outer annulus formed between the slotted liner assembly and the wellbore, the debris and cuttings may be flushed out of the slots.
  • the method 150 shown in FIG. 5 may also include disengaging the drill string from the slotted liner assembly 155.
  • Disengaging the drill string from the slotted liner assembly 155 may be accomplished by de-actuating a drill lock assembly and/or a sealing mechanism.
  • De-actuating a drill lock assembly may cause one or more locking mechanisms (e.g., locking dogs, slips, etc.) to disengage from a slotted liner assembly.
  • Disengaging the drill string from the slotted liner assembly may also include de-actuating or otherwise disengaging one or more seals (e.g., casing shoes sealed against a casing shoe guide).
  • disengaging the drill string from the slotted liner assembly may also include releasing the drill bit from the drill string.
  • a method 150 may also include removing a drill string 156.
  • the drill string 156 may be removed from a slotted liner assembly and from a wellbore following drilling of the wellbore, and optionally running the casing into the wellbore simultaneously with the drill string during drilling. Once the drill string is disengaged from the slotted liner assembly, the drill string can be retrieved from the wellbore, leaving the slotted liner assembly in place in the wellbore.
  • the method 150 may further include securing the slotted liner assembly in the wellbore 157. The slotted liner assembly may be secured in place in any suitable manner.
  • the method of drilling 150 may also include producing a production fluid 158.
  • the production fluid may be produced while filtering the production fluid through a slotted liner.
  • the slots may filter debris, cuttings, or sand out of the formation fluid, resulting in cleaner production fluid entering the wellbore.
  • Production fluid that is relatively clean and free of debris and cuttings may thereafter be pumped uphole through the slotted liner assembly.
  • producing a production fluid may include positioning or deploying one or more packers between the slotted liner assembly and the wellbore above and/or below the slotted liner portion.
  • the packer(s) may limit or prevent formation fluid from flowing uphole or downhole through the outer annulus formed between the slotted liner assembly and the wellbore. Rather, the production fluids flow into the slotted liner assembly through the slots in the slotted liner portion.
  • slotted liner assemblies, drill strings, and methods of drilling and completing a well may be described herein with primary reference to downhole tools for oil and gas production, such embodiments are provided solely to illustrate one environment in which aspects of the present disclosure may be used.
  • devices, systems, assemblies, and methods of the present disclosure, or which would be appreciated in view of the disclosure herein may be used in other applications, including in automotive, aquatic, aerospace, hydroelectric, or other industries.
  • the figures are not to scale for each embodiment within the scope of the present disclosure. Certain features and components herein may be shown exaggerated in scale or in somewhat schematic form, and some details of conventional elements may not be shown or described in interest of clarity and conciseness.
  • Relational terms such as “bottom,” “below,” “lower:, “top,” “above,” “upper”, “back,” “front,” “left”, “right”, “rear”, “forward”, “up”, “down”, “horizontal”, “vertical”, “clockwise”, “counterclockwise,” “inner”, “outer”, and the like, may be used to describe various components, including their operation and/or illustrated position relative to one or more other components. Relational terms do not indicate a particular orientation for each embodiment within the scope of the description or claims.
  • a component of a BHA that is "below" another component may be more downhole while within a primary or vertical wellbore, but may have a different orientation during assembly, when removed from the wellbore, or in a deviated borehole.
  • relational descriptions are intended solely for convenience in facilitating reference to various components, but such relational aspects may be reversed, flipped, rotated, moved in space, or similarly modified. Relational terms may also be used to differentiate between similar components. Certain descriptions or designations of components as “first,” “second,” “third,” and the like may also be used to differentiate between similar components. Such language is not intended to limit a component to a singular designation. As such, a component referenced in the specification as the "first” component may be the same or different than a component that is referenced in the claims as a "first” component.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Earth Drilling (AREA)

Abstract

L'invention concerne des systèmes, des procédés et des ensembles de forage qui permettent le forage et le chemisage un puits de forage avec une colonne perdue perforée. Un système de forage comprend un ensemble colonne perdue comprenant un train de tiges de forage inséré dans un trou de celui-ci. Le train de tiges de forage et l'ensemble colonne perdue peuvent être accouplés sélectivement l'un à l'autre pour limiter le déplacement relatif entre l'ensemble colonne perdue et le train de tiges de forage. L'ensemble colonne perdue comprend une partie colonne perdue perforée dans laquelle un fluide peut s'écouler. Lorsque le système de forage est utilisé pour forer un puits de forage, l'ensemble colonne perdue est positionné simultanément à l'intérieur du puits de forage. Une fois que le puits est foré à une profondeur souhaitée, le train de tiges de forage peut être dégagé de l'ensemble et sorti du puits. Les fluides de production tels que l'huile et le gaz peuvent être alors transférés vers le haut du trou par l'ensemble colonne perdue.
EP14753496.0A 2013-02-25 2014-02-25 Forage à colonne perdue perforée Withdrawn EP2959089A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201361768890P 2013-02-25 2013-02-25
US14/188,209 US20140238748A1 (en) 2013-02-25 2014-02-24 Slotted liner drilling
PCT/US2014/018324 WO2014131014A1 (fr) 2013-02-25 2014-02-25 Forage à colonne perdue perforée

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EP2959089A1 true EP2959089A1 (fr) 2015-12-30
EP2959089A4 EP2959089A4 (fr) 2016-03-23

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EP14753496.0A Withdrawn EP2959089A4 (fr) 2013-02-25 2014-02-25 Forage à colonne perdue perforée

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US (1) US20140238748A1 (fr)
EP (1) EP2959089A4 (fr)
CA (1) CA2901414A1 (fr)
WO (1) WO2014131014A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD744007S1 (en) * 2014-01-31 2015-11-24 Deere & Company Liner element
GB2538550B (en) * 2015-05-21 2017-11-29 Statoil Petroleum As Method for achieving zonal control in a wellbore when using casing or liner drilling
EP3371415A4 (fr) * 2015-11-06 2019-06-26 Tyrfing Innovation AS Appareil et procédé d'installation

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Publication number Priority date Publication date Assignee Title
US5148875A (en) * 1990-06-21 1992-09-22 Baker Hughes Incorporated Method and apparatus for horizontal drilling
US5074366A (en) * 1990-06-21 1991-12-24 Baker Hughes Incorporated Method and apparatus for horizontal drilling
US5040601A (en) * 1990-06-21 1991-08-20 Baker Hughes Incorporated Horizontal well bore system
US5253708A (en) 1991-12-11 1993-10-19 Mobil Oil Corporation Process and apparatus for performing gravel-packed liner completions in unconsolidated formations
US7234546B2 (en) * 2002-04-08 2007-06-26 Baker Hughes Incorporated Drilling and cementing casing system
WO2004083590A2 (fr) * 2003-03-13 2004-09-30 Tesco Corporation Procede et appareil de forage de puits faisant appel a une crepine de puits
US8276689B2 (en) * 2006-05-22 2012-10-02 Weatherford/Lamb, Inc. Methods and apparatus for drilling with casing
US7784552B2 (en) * 2007-10-03 2010-08-31 Tesco Corporation Liner drilling method
US7963332B2 (en) * 2009-02-22 2011-06-21 Dotson Thomas L Apparatus and method for abrasive jet perforating
US8985227B2 (en) * 2011-01-10 2015-03-24 Schlumberger Technology Corporation Dampered drop plug
GB2502457B (en) * 2011-02-07 2019-02-06 Statoil Petroleum As Method and apparatus for drilling and lining a wellbore
WO2012134705A2 (fr) * 2011-03-26 2012-10-04 Halliburton Energy Services, Inc. Mise en place d'une colonne perdue à usage unique et assemblage pour le forage

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US20140238748A1 (en) 2014-08-28
CA2901414A1 (fr) 2014-08-28
WO2014131014A1 (fr) 2014-08-28
EP2959089A4 (fr) 2016-03-23

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