US20120168161A1 - Plug-inducing matter and method of plugging a wellbore - Google Patents

Plug-inducing matter and method of plugging a wellbore Download PDF

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Publication number
US20120168161A1
US20120168161A1 US12/981,174 US98117410A US2012168161A1 US 20120168161 A1 US20120168161 A1 US 20120168161A1 US 98117410 A US98117410 A US 98117410A US 2012168161 A1 US2012168161 A1 US 2012168161A1
Authority
US
United States
Prior art keywords
plug
members
swellable material
inducing matter
wellbore
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.)
Abandoned
Application number
US12/981,174
Other languages
English (en)
Inventor
Justin Cash Bowersock
Rodney D. Bennett
James R. Korte
Ervin D. Griffith
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.)
Baker Hughes Holdings LLC
Original Assignee
Baker Hughes Inc
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 Inc filed Critical Baker Hughes Inc
Priority to US12/981,174 priority Critical patent/US20120168161A1/en
Assigned to BAKER HUGHES INCORPORATED reassignment BAKER HUGHES INCORPORATED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GRIFFITH, Ervin D., BENNETT, RODNEY D., BOWERSOCK, Justin Cash, KORTE, JAMES R.
Priority to PCT/US2011/065835 priority patent/WO2012091982A2/fr
Publication of US20120168161A1 publication Critical patent/US20120168161A1/en
Abandoned legal-status Critical Current

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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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like

Definitions

  • junk shot In the downhole industry, for example, operators inject matter referred to as “junk shot” into leaking wellbores to plug the leak. Junk shot is commonly made of ground up tires and metal balls. Although such material often works adequately for its intended purpose, operators are always interested in new devices and methods to improve the art.
  • plug-inducing matter which includes junk shot comprising members and swellable material substantially covering the members which are configured to swell upon exposure to wellbore fluids.
  • Also disclosed is a method of plugging a leaking wellbore including injecting junk shot having members covered by swellable material that is swellable in wellbore fluids into a leaking wellbore, exposing the swellable material to wellbore fluids, and swelling the swellable material.
  • FIG. 1 depicts a cross sectional view of a piece of junk shot disclosed herein.
  • FIG. 2 depicts a cross sectional view of an alternate embodiment of a piece of junk shot disclosed herein.
  • the junk shot 10 includes, a member 14 that is covered by a swellable material 18 .
  • a swellable material 18 is covered by a swellable material 18 .
  • the junk shot 10 illustrated in this embodiment is spherical the invention is not be limited to such a configuration as other shapes are contemplated.
  • the member 10 may be bonded to the swellable material 18 at an interface 22 therebetween by an adhesive 26 or other means of generating attachment therebetween.
  • the member 14 in embodiments disclosed herein is substantially non-swellable, and may be constructed of phenolic, such as is commonly used for tripping balls in the downhole industry, or other materials such as, iron, lead, bismuth, ceramic and glass. It may be desirable to employ a material for the member 14 that has a density comparable to the density of fluid that the junk shot 10 will be injected within to facilitate placement of the junk shot 10 to the desired location. In other applications it may be desirable to employ members 14 having greater density than a target fluid so that the junk shot 10 will tend to sink therewithin. In a hydrocarbon recovery application, for example, where heavy muds and drilling fluids are employed, using a more dense material such as lead or bismuth for the member 14 can make transporting the junk shot 10 to the location of the leak to be sealed an easier task.
  • the fluid in which the swellable material 18 needs to swell influences material selection for the swellable material 18 .
  • the swellable material 18 can be tailored specifically to that target fluid.
  • wellbore fluids such as water, brine, hydrocarbons, drilling mud, or combinations of these a material that will swell in either an aqueous or a non-aqueous medium or both is preferred.
  • the '507 reference discloses use of a rubber compound based on a base polymer of EPDM (e.g., ethylene propylene diene monomer rubber) or Nitrile with an acrylic copolymer added that can volumetrically swell un bonded as much as 250-300% in refined oil or water respectively. Since swelling materials to these levels can weaken the material significantly, using a compound/material that swells when bonded in the range of 5-35% may be more desirable for the swellable material 18 that covers the member 14 .
  • EPDM e.g., ethylene propylene diene monomer rubber
  • Nitrile an acrylic copolymer added
  • a maximum radial dimension 30 of between 3 ⁇ 4 to about 1 ⁇ 4 inches for the junk shot 10 may provide the mobility and sealing effect desired. Accordingly, the foregoing maximum radial dimension 30 of the junk shot 10 can well accommodate a maximum radial dimension 34 of the member 14 of between 1 ⁇ 2 to 3 ⁇ 4 of an inch.
  • the junk shot 10 can include pieces 38 , or chunks, of the swellable material 18 that do not have the member 14 encased therein.
  • the pieces 38 can have well defined shapes, such as spherical, cubic, elliptical, etc, or can have random shapes such as may be generated from grinding or tearing the pieces 38 from a larger portion of the swellable material 18 .
  • Employing a maximum radial dimension 42 of between 1 and 1 1/4 inches for the pieces 38 may maintain a desired distribution of the pieces 38 within the junk shot 10 during transport to assure the pieces 38 aid in plugging a leak.
  • the pieces 38 do not include a member 14 may be configured to swell unbonded in the range of 10-100% volumetrically for best results.

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  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Sealing Material Composition (AREA)
  • Closures For Containers (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Glass Compositions (AREA)
  • Gasket Seals (AREA)
US12/981,174 2010-12-29 2010-12-29 Plug-inducing matter and method of plugging a wellbore Abandoned US20120168161A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/981,174 US20120168161A1 (en) 2010-12-29 2010-12-29 Plug-inducing matter and method of plugging a wellbore
PCT/US2011/065835 WO2012091982A2 (fr) 2010-12-29 2011-12-19 Substance produisant un bouchon et méthode de bouchage d'un puits de forage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12/981,174 US20120168161A1 (en) 2010-12-29 2010-12-29 Plug-inducing matter and method of plugging a wellbore

Publications (1)

Publication Number Publication Date
US20120168161A1 true US20120168161A1 (en) 2012-07-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US12/981,174 Abandoned US20120168161A1 (en) 2010-12-29 2010-12-29 Plug-inducing matter and method of plugging a wellbore

Country Status (2)

Country Link
US (1) US20120168161A1 (fr)
WO (1) WO2012091982A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9719331B2 (en) 2012-05-13 2017-08-01 Alexander H. Slocum Method and apparatus for bringing under control an uncontrolled flow through a flow device
US11199064B2 (en) 2018-10-31 2021-12-14 Halliburton Energy Services, Inc. Integrated debris catcher and plug system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090038800A1 (en) * 2007-08-08 2009-02-12 Ravi Krishna M Sealant Compositions and Methods of Use

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050284641A1 (en) * 2004-06-24 2005-12-29 Baker Hughes Incorporated Controlled variable density fluid for wellbore operations
US8240377B2 (en) * 2007-11-09 2012-08-14 Halliburton Energy Services Inc. Methods of integrating analysis, auto-sealing, and swellable-packer elements for a reliable annular seal
EP2143874A1 (fr) * 2008-07-11 2010-01-13 Welltec A/S Agencement d'étanchéité et procédé d'étanchéité

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090038800A1 (en) * 2007-08-08 2009-02-12 Ravi Krishna M Sealant Compositions and Methods of Use

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9719331B2 (en) 2012-05-13 2017-08-01 Alexander H. Slocum Method and apparatus for bringing under control an uncontrolled flow through a flow device
US10513912B2 (en) 2012-05-13 2019-12-24 Alexander Henry Slocum Method and apparatus for bringing under control an uncontrolled flow through a flow device
US11199064B2 (en) 2018-10-31 2021-12-14 Halliburton Energy Services, Inc. Integrated debris catcher and plug system

Also Published As

Publication number Publication date
WO2012091982A2 (fr) 2012-07-05
WO2012091982A3 (fr) 2012-11-01

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Legal Events

Date Code Title Description
AS Assignment

Owner name: BAKER HUGHES INCORPORATED, TEXAS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BOWERSOCK, JUSTIN CASH;BENNETT, RODNEY D.;KORTE, JAMES R.;AND OTHERS;SIGNING DATES FROM 20110104 TO 20110209;REEL/FRAME:025935/0609

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION