WO2020264113A1 - Réducteur de circulation résistant aux chocs - Google Patents

Réducteur de circulation résistant aux chocs Download PDF

Info

Publication number
WO2020264113A1
WO2020264113A1 PCT/US2020/039555 US2020039555W WO2020264113A1 WO 2020264113 A1 WO2020264113 A1 WO 2020264113A1 US 2020039555 W US2020039555 W US 2020039555W WO 2020264113 A1 WO2020264113 A1 WO 2020264113A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
release member
circulation sub
ring
stud
Prior art date
Application number
PCT/US2020/039555
Other languages
English (en)
Inventor
Larry Thomas PALMER
Gregory Hern
Andrew Ponder
Erik VAN STEVENINCK
Original Assignee
Baker Hughes Oilfield Operations Llc
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 Baker Hughes Oilfield Operations Llc filed Critical Baker Hughes Oilfield Operations Llc
Publication of WO2020264113A1 publication Critical patent/WO2020264113A1/fr

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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/10—Valve arrangements in drilling-fluid circulation systems
    • E21B21/103—Down-hole by-pass valve arrangements, i.e. between the inside of the drill string and the annulus
    • 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
    • E21B28/00—Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
    • 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
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in wells
    • E21B34/063—Valve or closure with destructible element, e.g. frangible disc
    • 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
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in wells
    • E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
    • E21B34/142—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools unsupported or free-falling elements, e.g. balls, plugs, darts or pistons
    • 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
    • E21B31/00—Fishing for or freeing objects in boreholes or wells
    • E21B31/005—Fishing for or freeing objects in boreholes or wells using vibrating or oscillating means

Definitions

  • a work string is lowered into a wellbore in order to perform a downhole operation, such as drilling or fluid production.
  • the work string includes a bore therein and forms an annulus with a wall of the wellbore.
  • the work string therefore includes a port between the bore and the annulus and a piston that moves axially along the work string to open and close the port.
  • the piston is secured to the work string as the work string is being deployed downhole.
  • vibrators are employed on the work string in order to reduce friction between the work string and the wall of the wellbore, thereby enabling the work string to be pushed to greater depths in the wellbore without getting stuck.
  • the force created by the vibrators can however be great enough to release the piston from the work string prematurely, allowing for possible damage to occur to the work string due to unsecured piston. Therefore there is a need to be able to better secure the piston to a work string that uses vibrators to deploy the work string downhole.
  • a circulation sub in one aspect, includes a support member having a longitudinal axis, a piston movable along the longitudinal axis of the support member, and a release member.
  • the release member is configured to secure the piston to the support member and to release the piston from the support member when a force applied along a length axis of the release member is greater than a decoupling force threshold of the release member.
  • a method of operating a circulation sub includes coupling a support member of the circulation sub and a piston using a release member, and applying a force along a length axis of the release member greater than a selected decoupling force threshold to decoupling the support member from the piston, thereby allowing the piston to move along the longitudinal axis of the member.
  • Figure 1 shows an illustrative production system including a work string and circulation sub
  • Figure 2 shows a detailed illustration of the circulation sub of Figure 1 in one embodiment
  • Figure 3 shows a close up view of a release member of Figure 2 in one embodiment
  • Figure 4 shows a stress-strain curve for the release member
  • Figure 5 shows a circulation sub in another illustrative embodiment.
  • the production system 100 includes a work string 102 extending from a rig 104 located at a surface location 106.
  • the work string 102 can be a production string or a drill string, in various embodiments.
  • the work string 102 extends through a wellbore 108 penetrating a formation 110 and a reservoir 112 in the formation 110.
  • a circulation sub 114 is disposed on the work string 102 at a location in the reservoir 112 for the purposes of allowing a circulation of fluid between a bore 132 of the work string and an annulus 134 between the work string 102 and a wall 108a of the wellbore 108.
  • the circulation sub 114 can be used to perform fracking of the reservoir 112.
  • the circulation sub 114 is disposed between a first section 102a of the work string 102 and a second section 102b of the work string 102.
  • a second circulation sub 124 can be disposed at a lower end of the second section 102b.
  • Additional circulation subs (not shown) can also be disposed at lower sections of the work string 102.
  • the wellbore 108 can deviate to have a horizontal section and the work string 102 can deviate along with the wellbore 108 to extend through the horizontal section, with additional circulation subs disposed within the horizontal section.
  • the work string 102 includes one or more Extended Reach Tools or vibrators 130 at axially-spaced locations along the work string.
  • the vibrators 130 reduce friction between the work string 102 and the wall 108a of the wellbore 108, therefore allowing the work string 102 to be pushed further into the wellbore without getting stuck therein.
  • a fluid 120 is pumped from a fluid storage device 116 through delivery pipe 118 and down through the work string 102 to exit into the reservoir 112 via the circulation sub 114.
  • the fluid can be a frac fluid and is pumped out of the circulation sub 114 and into various perforations 128 previously formed in the reservoir 112.
  • FIG. 2 shows a detailed illustration of the circulation sub 114 of Figure 1 in one embodiment.
  • the circulation sub 114 extends from a first end 240 to a second end 242.
  • the first end 240 is considered to be uphole of the second end 242 and therefore discussion of an object of the circulation sub 114 moving upward refers to the object moving towards the first end 240, while the object moving downward refers to the object moving towards the second end 242.
  • the circulation sub 114 includes a top sub 202 at its first end 240 and a housing 204 at its second end 242.
  • the top sub 202 is secured into the housing 204 at a threaded section 206.
  • the top sub 202 includes a top sub axial bore 208 therethrough and the housing 204 includes a housing axial bore 210 therethrough.
  • the top sub axial bore 208 is aligned with the housing axial bore 210 along a centerline or longitudinal axis 205 of the circulation sub 114, the longitudinal axis of the circulation sub being aligned with a longitudinal axis of the work string.
  • the top sub 202 includes an extended section 212 having a reduced outer diameter below the threaded section 206. Additionally, the housing 204 has an inner diameter below the threaded section 206 that is greater than the outer diameter of the extended section 212. The inner diameter of the housing 204 and the outer diameter of the extended section 212 therefore define a chamber 214.
  • a leak hole or inner port 220 provides a fluid path between the top sub axial bore 208 and the chamber 214.
  • An outer port 222 provides a fluid path between the chamber 214 and the annulus 134 of the wellbore 108.
  • a piston 216 resides in the chamber 214 in order to move within the chamber 214 along the longitudinal axis 205 of the circulation sub 114.
  • the piston 216 can be secured to the top sub 202 in a first position via a release member 218.
  • the release member 218 includes first end and a second end which are mechanically coupled by an intermediate connection. When an axial force along the length of the intermediate connection between the first end and second is greater than a decoupling force threshold of the intermediate connection, the first end becomes decoupled from the second end.
  • the release member 218 is a tensile member which includes a first end, second end and connecting shank that breaks when an axial force is applied along the length of the shank greater than a fracture threshold of the shank.
  • the release member 218 can include or refer to a plurality of circumferentially or azimuthally spaced release members.
  • the top sub 202 serves as a support member to the piston 216 until a time at which an operator wishes to decouple the piston from the top sub 202.
  • the piston 216 includes a flow bore therethrough arranged along the centerline of the circulation sub 144. Hence the location at which the release member 218 secures the piston 216 to the top sub 202 is radially offset from the centerline or longitudinal axis 205 of the circulation sub 144. In the first position (i.e., secured to the top sub 202), the piston 216 closes or covers both the inner port 220 and the outer port 222.
  • the piston 216 can move within the chamber 214.
  • the piston 216 By moving downward into the housing 204 to a second position closer to the second end 242 than then first position, the piston 216 is away from the inner port 220 and the outer port 222, leaving both the inner port 220 and the outer port 222 open to chamber 214. Therefore, when the piston 216 is in the second position, fluid communication occurs between the top sub axial bore 208 and the annulus 134 via the chamber 214, inner port 220 and outer port 222.
  • Figure 3 shows a close up view of the release member 218 of Figure 2 in one embodiment.
  • the illustrative release member 218 includes a screw or bolt having a head 302 at a first stud end and a threaded end 304 at an opposing second stud end.
  • a length axis of the release member 218 extends from the head 302 to the threaded end 304.
  • the length axis of the release member 218 is parallel or substantially parallel to the centerline or longitudinal axis 205 of the circulation sub 114.
  • the head 302 secures the release member 218 to the top sub 202 while the threaded end 304 secures the release member 218 to the piston 216.
  • a shank 306 extends from the head 302 to the threaded end 304.
  • the shank 306 passes through a support housing 226 when the release member 218 secures the top sub 202 to the piston 216.
  • the shank 306 include one or more support sections 308 having a first outer diameter and a stud break section 310 having a second outer diameter less than the first outer diameter.
  • An axial force capable of breaking the stud break section 310 defines a force threshold for the release member 218.
  • Figure 4 shows a stress-strain curve for the release member 218 comparing a stress (along the y-axis) to an induced strain (along the x-axis).
  • the release member 218 stretches when an axial force is applied within an elastic range of the release member 218.
  • the limit of the elastic range is indicated by the fracture point 402.
  • a decoupling force threshold or fracture threshold 404 corresponds to fracture point 402 and indicates the axial force required to break the release member 218.
  • the fracture threshold 404 is selected to be greater than a maximal force 406 applied along the length axis of the release member 218 by the vibrators 130. Therefore, the piston 216 can be secured to the top sub 202 by the release member 218 until the circulation sub 114 is deployed to its desired location in the wellbore, without the vibrators 130 breaking the release member 218.
  • a fluid pressure differential is applied between the top sub axial bore 208 and the annulus 134.
  • An annular pressure can be in communication with the housing axial bore 210 via port 228.
  • the piston 216 incudes a flow bore and a ball seat 224 at an entry to the flow bore.
  • a ball can be dropped onto the ball seat 224 through the top sub axial bore 208.
  • a fluid pressure can be exerted on the ball from a surface location to create the differential pressure, for example, by using a pump at the surface location to pump a fluid through the top sub axial bore 208 to the top of the ball.
  • the force applied to the ball, and thus on the piston 216 is greater than the fracture threshold 404 of the release member 218, thereby breaking the release member and allowing the piston to move axially within the chamber 214.
  • FIG. 5 shows a circulation sub 500 in another illustrative embodiment.
  • the circulation sub 500 includes the top sub 202 and housing 204.
  • Piston 216 is secured to the top sub 202 via a tensile ring 502 that serves as the release member.
  • the tensile ring 502 is a generally cylindrical shell structure extending along a length axis from a first ring end 504 to a second ring end 506.
  • the length axis of the tensile ring 502 is parallel or substantially parallel to the centerline or longitudinal axis 205 of the circulation sub 114.
  • the first ring end 504 is secured within a first end housing 510 of the top sub 202 and the second ring end 506 is secured within the piston 216.
  • the first ring end 504 has a flange that fits within a recess of a first end housing 510 of the top sub 202 in order to secure the tensile ring 502 to the top sub 202.
  • the second ring end 506 has a flange that fits within a recess of the piston 216 in order to secure the tensile ring 502 to the piston 216.
  • a ring break section 508 is located between the first ring end 504 and the second ring end 506. The ring break section 508 is designed to break when a selected force greater than a force threshold of the tensile ring 502 is applied along the length axis of the tensile ring.
  • the ring break section 508 is designed to break before either the first ring end 504 or second ring end 506.
  • the force threshold for the ring break section 508 can be selected by forming holes within the ring break section to weaken the ring break section by a selected amount.
  • the ring break section 508 can have a thinner thickness between its inner dimeter and outer diameter than either of the first ring end 504 or second ring end 506.
  • the release member is discussed as part of a circulation sub for illustrative purposes, the release member can be used in any downhole tool of the work string in various embodiments.
  • the release member is discussed herein as either a tensile stud or a tensile ring, it is to be understood that any release member that breaks or decouples when a force is applied along its length axis greater than a selected decoupling force threshold can be used.
  • Embodiment 1 A circulation sub.
  • the circulation sub includes a support member having a longitudinal axis, a piston movable along the longitudinal axis of the support member, and a release member configured to secure the piston to the support member and to release the piston from the support member when a force applied along a length axis of the release member is greater than a decoupling force threshold of the release member.
  • Embodiment 2 The circulation sub of any prior embodiment, wherein the decoupling force threshold of the release member is greater than the force applied along the length axis of the release member by one or more vibrators used to move the circulation sub in a wellbore.
  • Embodiment 3 The circulation sub of any prior embodiment, wherein the length axis of the release member is parallel to the longitudinal axis of the support member.
  • Embodiment 4 The circulation sub of any prior embodiment, wherein the release member is configured to break when a pressure differential between an inner bore of the circulation sub and a wellbore annulus applies the force on the release member greater than the decoupling force threshold.
  • Embodiment 5 The circulation sub of any prior embodiment, wherein the piston includes a ball seat for receiving a ball, wherein a fluid pressure applied to the received ball applies the force of the release member.
  • Embodiment 6 The circulation sub of any prior embodiment wherein the release member further comprises a tensile stud, the tensile stud having a first end securable to the support member, a second end securable to the piston and a stud break section that defines the decoupling force threshold.
  • Embodiment 7 The circulation sub of any prior embodiment, wherein the stud break section has a diameter smaller than a diameter of a first stud end and a dimeter of a second stud end.
  • Embodiment 8 The circulation sub of any prior embodiment, wherein the release member further comprises a ring having a first ring end secured to the support member and a second ring end secured to the piston, the ring includes a ring break section between the first ring end and the second ring end that defines the decoupling force threshold.
  • Embodiment 9 The circulation sub of any prior embodiment, wherein the ring break section includes one or more holes for reducing a strength of the ring break section with respect to the strength of the first ring end and the second ring end.
  • Embodiment 10 The circulation sub of any prior embodiment, wherein the release member secures the piston to the support member at a location radially offset from a longitudinal axis of the circulation sub.
  • Embodiment 11 A method of operating a circulation sub. The method includes: coupling a support member of the circulation sub and a piston using a release member, and applying a force along a length axis of the release member greater than a selected decoupling force threshold to decoupling the support member from the piston, thereby allowing the piston to move along the longitudinal axis of the member.
  • Embodiment 12 The method of any prior embodiment, wherein the decoupling force threshold of the release member is greater than a force applied along the longitudinal axis of the circulation sub by one or more vibrators used to move the circulation sub in a wellbore.
  • Embodiment 13 The method of any prior embodiment, further comprising applying a pressure differential between an inner bore of the circulation sub and an annulus to apply the force on the release member greater than the selected decoupling force threshold.
  • Embodiment 14 The method of any prior embodiment, further comprising receiving a ball at the piston and applying the force along the length axis of the release member via a hydraulic pressure on the ball.
  • Embodiment 15 The method of any prior embodiment, wherein the release member further comprises a tensile stud, and the length axis of the tensile stud is parallel to the longitudinal axis of the support member.
  • Embodiment 16 The method of any prior embodiment, wherein the tensile stud includes a stud break section defining the decoupling force threshold, the stud break section having a diameter smaller than a diameter of a first stud end and a diameter of a second stud end.
  • Embodiment 17 The method of any prior embodiment, wherein the release member further comprises a ring having a first ring end secured to the support member and a second ring end secured to the piston, the ring includes a ring break section defining the decoupling force threshold.
  • Embodiment 18 The method of any prior embodiment, wherein the ring break section includes one or more holes for weakening the ring break section with respect to at least one of the first ring end and the second ring end.
  • the teachings of the present disclosure may be used in a variety of well operations. These operations may involve using one or more treatment agents to treat a formation, the fluids resident in a formation, a wellbore, and / or equipment in the wellbore, such as production tubing.
  • the treatment agents may be in the form of liquids, gases, solids, semi-solids, and mixtures thereof.
  • Illustrative treatment agents include, but are not limited to, fracturing fluids, acids, steam, water, brine, anti-corrosion agents, cement, permeability modifiers, drilling muds, emulsifiers, demulsifiers, tracers, flow improvers etc.
  • Illustrative well operations include, but are not limited to, hydraulic fracturing, stimulation, tracer injection, cleaning, acidizing, steam injection, water flooding, cementing, etc.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (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)
  • Mechanical Engineering (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

L'invention concerne un réducteur de circulation et un procédé d'actionnement d'un réducteur de circulation. Le réducteur de circulation comprend un élément de support comportant un axe longitudinal et un piston mobile le long de l'axe longitudinal de l'élément de support. Un élément de dégagement fixe le piston à l'élément de support. Une force est appliquée le long d'un axe longitudinal de l'élément de dégagement, ladite force étant supérieure à un seuil de force de découplage sélectionné, afin de découpler l'élément de support par rapport au piston et permettre ainsi au piston de se déplacer le long de l'axe longitudinal de l'élément.
PCT/US2020/039555 2019-06-26 2020-06-25 Réducteur de circulation résistant aux chocs WO2020264113A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16/453,524 2019-06-26
US16/453,524 US20200408065A1 (en) 2019-06-26 2019-06-26 Shock resistant circulation sub

Publications (1)

Publication Number Publication Date
WO2020264113A1 true WO2020264113A1 (fr) 2020-12-30

Family

ID=74044065

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2020/039555 WO2020264113A1 (fr) 2019-06-26 2020-06-25 Réducteur de circulation résistant aux chocs

Country Status (2)

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US (1) US20200408065A1 (fr)
WO (1) WO2020264113A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130133878A1 (en) * 2011-11-30 2013-05-30 Baker Hughes Incorporated Setting Subterranean Tools with Flow Generated Shock Wave
US20150107829A1 (en) * 2012-05-07 2015-04-23 Packers Plus Energy Services Inc. Method and system for monitoring well operations
WO2018057958A1 (fr) * 2016-09-23 2018-03-29 Tam International, Inc. Joint de tubage à orifices hydrauliques
WO2018194560A1 (fr) * 2017-04-18 2018-10-25 Halliburton Energy Services, Inc. Dispositif de commande d'écoulement entrant actionné par pression
US20190040699A1 (en) * 2016-05-24 2019-02-07 Halliburton Energy Services, Inc. Anti-preset mechanism for setting piston in downhole tools

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130133878A1 (en) * 2011-11-30 2013-05-30 Baker Hughes Incorporated Setting Subterranean Tools with Flow Generated Shock Wave
US20150107829A1 (en) * 2012-05-07 2015-04-23 Packers Plus Energy Services Inc. Method and system for monitoring well operations
US20190040699A1 (en) * 2016-05-24 2019-02-07 Halliburton Energy Services, Inc. Anti-preset mechanism for setting piston in downhole tools
WO2018057958A1 (fr) * 2016-09-23 2018-03-29 Tam International, Inc. Joint de tubage à orifices hydrauliques
WO2018194560A1 (fr) * 2017-04-18 2018-10-25 Halliburton Energy Services, Inc. Dispositif de commande d'écoulement entrant actionné par pression

Also Published As

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