Great research starts with great data.

Learn More
More >
Patent Analysis of

Isolation packer with automatically closing alternate path passages

Updated Time 12 June 2019

Patent Registration Data

Publication Number

US10060198

Application Number

US14/218460

Application Date

18 March 2014

Publication Date

28 August 2018

Current Assignee

BAKER HUGHES INCORPORATED

Original Assignee (Applicant)

BAKER HUGHES INCORPORATED

International Classification

E21B43/04,E21B17/18,E21B33/12,E21B34/06

Cooperative Classification

E21B17/18,E21B43/04,E21B34/06,E21B33/1208

Inventor

GARCIA, ANDRES,FARIA, NERVY E.,FISHER, BRITAIN

Patent Images

This patent contains figures and images illustrating the invention and its embodiment.

US10060198 Isolation packer automatically closing 1
See all images <>

Abstract

Auxiliary conduits that run through a packer body or seal are equipped with thermally responsive valve members that with a time exposure close off the conduits to create zonal isolation across one or more packers after a gravel pack. The heat source can also be added to the well fluids to control the speed of the process either in the form of heaters or reactive chemicals that create an exothermic reaction. The valve material can be shape memory polymer.

Read more

Claims

1. An isolation method, comprising:

running in an assembly of screens separated by at least one packer with at least one auxiliary conduit passing through said packer and extending into adjacent zones defined by said packer, said conduit comprising a wall to define a passage; setting said at least one packer subsequent to said running in to thereby isolate said adjacent zones from each other; gravel packing at least one of said adjacent zones; after said gravel packing is completed, automatically closing said conduit principally in response to a thermal signal from surrounding fluid in said zones and outside said conduit without the surrounding fluid outside said conduit contacting a closure within said conduit, said closing occurring by shape change of said closure at a predetermined temperature.

2. The method of claim 1, comprising:

running said conduit through a body or a seal of said packer.

3. The method of claim 1, comprising:

using a shape memory polymer or alloy as part of said conduit for selective closure of said conduit.

4. The method of claim 3, comprising:

raising the temperature of said polymer or alloy above the critical temperature for a shape change that results in closure of said conduit.

5. The method of claim 4, comprising:

adding or removing heat from well fluids in said zones to control the timing of said shape change.

6. The method of claim 4, comprising:

using a heater or an exothermic reaction to accelerate a closure of said conduit.

7. The method of claim 1, comprising:

closing said conduit in one or more zones.

8. The method of claim 1, comprising:

providing multiple conduits extending into multiple zones.

9. The method of claim 8, comprising:

making closures or conduit material in different zones responsive to change shape at the same or different temperatures.

10. The method of claim 9, comprising:

controlling the sequence of conduit closing to occur in an uphole, downhole or random pattern.

11. The method of claim 1, comprising:

gravel packing with said packer set or unset.

12. The method of claim 1, comprising:

extending multiple conduits into multiple zones through a plurality of packers; automatically closing said multiple conduits thermally for isolation of a plurality of said zones from each other.

13. The method of claim 1, comprising:

using, in conjunction with said closure in said conduit that changes shape at a predetermined temperature to close said conduit, a conduit wall material changing shape.

14. An isolation method, comprising:

running in an assembly of screens separated by at least one packer with at least one auxiliary conduit passing through said packer and extending into adjacent zones defined by said packer, said conduit formed by a wall inside surface that defines an unobstructed passage having an initial dimension and said wall having an outside surface with said inside and outside surfaces being a shape memory material; setting said at least one packer subsequent to said running in to thereby isolate said adjacent zones from each other; gravel packing at least one of said adjacent zones; allowing some gravel to contact said inside surface defining said passage during said gravel packing; collapsing, after said gravel packing and in response to a thermal signal, said inside and outside surfaces of said wall to reduce the internal dimension of said unobstructed passage by moving spaced portions of said inside and outside surfaces at a predetermined temperature, said collapsing closing said passage defined by said conduit as portions of said inside and outside surfaces that were spaced from each other to define said initial dimension move to where said inside surfaces contact each other to obstruct said passage to reduce said initial dimension.

Read more

Claim Tree

  • 1
    ation method, comprisin : running
    • an assembly of screens separated by at least one packer with at least one auxiliary conduit passing through said packer and extending into adjacent zones defined by said packer, said conduit comprising a wall to define a passage; setting
    • id at least one packer subsequent to said running in to thereby isolate said adjacent zones from each other; gravel p
    • king at least one of said adjacent zones; after sa
    • gravel packing is completed, automatically closing said conduit principally in response to a thermal signal from surrounding fluid in said zones and outside said conduit without the surrounding fluid outside said conduit contacting a closure within said conduit, said closing occurring by shape change of said closure at a predetermined temperature. 2. The me
    • hod of claim 1, comprisin : running
      • id conduit through a body or a seal of said packer. 3. The me
    • hod of claim 1, comprisin : using a
      • ape memory polymer or alloy as part of said conduit for selective closure of said conduit. 4. The me
    • hod of claim 1, comprisin : closing
      • id conduit in one or more zones. 8. The me
    • hod of claim 1, comprisin : providin
      • multiple conduits extending into multiple zones. 9. The me
    • thod of claim 1, comprisin : gravel p
      • king with said packer set or unset. 12. The m
    • thod of claim 1, comprisin : extendin
      • multiple conduits into multiple zones through a plurality of packers; automati
      • lly closing said multiple conduits thermally for isolation of a plurality of said zones from each other. 13. The m
    • thod of claim 1, comprisin : using, i
      • conjunction with said closure in said conduit that changes shape at a predetermined temperature to close said conduit, a conduit wall material changing shape. 14. An is
  • 14
    lation method, comprisin : running
    • an assembly of screens separated by at least one packer with at least one auxiliary conduit passing through said packer and extending into adjacent zones defined by said packer, said conduit formed by a wall inside surface that defines an unobstructed passage having an initial dimension and said wall having an outside surface with said inside and outside surfaces being a shape memory material; setting
    • id at least one packer subsequent to said running in to thereby isolate said adjacent zones from each other; gravel p
    • king at least one of said adjacent zones; allowing
    • ome gravel to contact said inside surface defining said passage during said gravel packing; collapsi
    • , after said gravel packing and in response to a thermal signal, said inside and outside surfaces of said wall to reduce the internal dimension of said unobstructed passage by moving spaced portions of said inside and outside surfaces at a predetermined temperature, said collapsing closing said passage defined by said conduit as portions of said inside and outside surfaces that were spaced from each other to define said initial dimension move to where said inside surfaces contact each other to obstruct said passage to reduce said initial dimension.
See all independent claims <>

Description

FIELD OF THE INVENTION

The field of the invention is zonal isolation across a set packer that has alternate path passages that go through its body or seal and more particularly where such closures are automatically actuated using borehole temperature.

BACKGROUND OF THE INVENTION

In the context of multiple zone isolation when gravel packing while using alternative path conduits there is a need to be able to isolate the zones on opposed sides of a set packer in open or cased hole. In doing so there is a need to seal off the alternate paths that run through the packer bodies or seals. One approach that has been tried is to introduce fluid in the wellbore that initiates a swelling response in a material that seals off the alternate paths. This approach is described in U.S. Pat. No. 7,407,007. The problem in this design is that it requires delivery to the swelling material of a fluid that will induce it to swell. The problem is that there is uncertainty if the delivered fluid has actually reached the swelling material in the individual tubes to start the process. Further, there is also a time delay issue from the onset of the circulation to the obtaining the desired result of path isolation. A variation of this design using a shifting tool to operate a valve in an auxiliary conduit is U.S. Pat. No. 7,562,709.

Also of general interest to the field of auxiliary conduits and closures associated with isolation devices or such conduits are the following: U.S. Pat. Nos. 7,126,160; 7,373,979; 7,296,624; 7,128,152; 7,784,532; 7,147,054; 6,464,007; 8,403,062; 6,588,506; 8,453,734 and 7,841,398.

The present invention closes off auxiliary conduits automatically using the heat in well fluids that is either naturally occurring or induced artificially such as by heaters or other heat sources. These and other aspects of the present invention will be more readily apparent to those skilled in the art from a review of the description of the preferred embodiment and the associated drawings.

SUMMARY OF THE INVENTION

Auxiliary conduits that run through a packer body or seal are equipped with thermally responsive valve members that with a time exposure close off the conduits to create zonal isolation across one or more packers after a gravel pack. The heat source can also be added to the well fluids to control the speed of the process either in the form of heaters or reactive chemicals that create an exothermic reaction or by other means. The valve material can be shape memory polymer.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic representation of a gravel packing assembly showing the auxiliary conduit with the closure in the conduit in the open position for multizone gravel packing; and

FIG. 2 is the view of FIG. 1 with the valve in the conduit in the closed position after the gravel packing so that adjacent zones are isolated for production.

FIG. 3 shows closure of the auxiliary conduit with movement of the conduit wall.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

FIG. 1 shows an open hole 1 that has a screen base pipe 2 that supports one or more isolation packers 11 that separate producing zones, although only a single zone is fully illustrated. Portions of an adjacent zone can be seen in the form of communication tubing 4 that appears above and below the packer 11 and thus is shown extending into multiple zones. The base pipes 2 are connected with couplings 7 and communications mandrels 5 to make a continuous string that supports the screens that are not shown. The auxiliary conduits 3 extend through either the body or seal of the packers 11 with the flow through the packer 11 illustrated with a series of arrows. In each conduit 3 there is a valve member 10 that during running in leaves each conduit 3 open to pass gravel between zones on opposed sides of each packer 11. The member 10 is preferably a high temperature shape memory polymer that responds to temperatures of the surrounding well fluid to cross its transition temperature and change shape into the FIG. 2 shape where the conduits 3 are obstructed. The heat can come from well fluid temperatures that occur naturally or the temperature can be artificially enhanced with heat from a heater or from an induced reaction that is exothermic or from other heat sources brought into the vicinity of the member 10. The artificial addition of heat just brings the member 10 to its critical temperature faster for closing off the conduits 3 on one or opposed sides of a packer 11 for full zonal isolation when the packer 11 is set. The packers can be unset during gravel packing so that multiple zones can be gravel packed together followed by setting the packers 11 followed by using the heat in well fluid to automatically shut the conduits 3 for full zonal isolation. FIG. 1 shows various components such as communication housing 4, top sub 8, isolation valve housing 9 and bottom sub 6 all of which are part of the conduits 3 that overly the base pipe 2 and associated screens that are not shown that overly the base pipes 2. Member 10 is shown as a valve member inside the conduit 3 that with a crossing of the transition temperature closes it. Alternatively, as shown in FIG. 3, the conduit 3 itself can be made from a similar material so that the crossing of the critical temperature from well fluid makes the shape change that ensues change the tubular wall configuration and creates a closure for zonal isolation to become effective at the packers 11 because the conduits that span the set packer are effectively closed. The members 10 in each zone can be responsive to the same or different well fluid temperatures so that closure of members 10 in adjacent zones can occur at the same or different times. This allows sequential closures of the conduits 3 in an uphole or downhole sequence or in another desired sequence. Adding heat locally can also control the order of closures.

It should be noted that the communication housings 4 allow entry or exit of gravel into the surrounding annulus for the gravel packing.

The advantage of the present invention is the automatic operation of the closures in the conduits 3 that then make possible the zonal isolation at the packers 11 to allow selective production or injection into selected zones or full isolation of such zones if desired. With proper screen valves individual zones can be separately produced or multiple zones can be produced together. The closures can be situated anywhere on the conduits 3 between isolation packers 11 with preferably each conduit 3 having one or more members in a given packer 11 interval with the use of multiple members providing further assurance that there is tight closure in the conduits between the zones. Apart from a shape change that plugs the conduits 3 the shape of the conduits 3 can change when the shape memory polymer is used for the conduit wall itself and reverts to a shape above the critical temperature that effectively closes the conduit. The member material can be shape memory alloy in an alternative design. The automatic operation of the closures for the conduits 3 can save time in getting the isolation of zones accomplished so that the next phase can be started that much faster. In the event additional time is needed before the conduits 3 close, fluid can be circulated with the gravel that is refrigerated to temporarily suspend the closure to allow time for effective completion of the gravel packing.

Read more
PatSnap Solutions

Great research starts with great data.

Use the most comprehensive innovation intelligence platform to maximise ROI on research.

Learn More

Citation

Patents Cited in This Cited by
Title Current Assignee Application Date Publication Date
Method and well tool for gravel packing a long well interval using low viscosity fluids EXXONMOBIL OIL CORPORATION 22 August 2000 15 October 2002
Emergency elastomer injection system for use on e-line and braided cable VETCO GRAY UK LIMITED 25 April 2012 31 October 2013
Method and apparatus for controlling fluid flow in conduits SCHLUMBERGER TECHNOLOGY CORPORATION 17 December 1999 09 October 2001
II-VI/III-V layered construction on InP substrate 3M INNOVATIVE PROPERTIES COMPANY 18 June 2004 24 October 2006
Temperature dependent swelling of a swellable material HALLIBURTON ENERGY SERVICES, INC. 08 March 2011 13 September 2012
See full citation <>

More like this

Title Current Assignee Application Date Publication Date
Methods and apparatus for completing wells HALLIBURTON ENERGY SERVICES, INC. 17 September 2004 21 April 2005
Well system with degradable plug HALLIBURTON ENERGY SERVICES, INC. 31 December 2014 07 July 2016
One trip completion assembly system and method HALLIBURTON ENERGY SERVICES, INC. 07 December 2016 22 June 2017
Anti-preset and Anti-reset feature for retrievable packers with slips above elements HALLIBURTON ENERGY SERVICES, INC. 05 December 2014 09 June 2016
Downhole pressure maintenance system using reference pressure HALLIBURTON ENERGY SERVICES, INC. 13 January 2015 21 July 2016
High pressure circulating shoe track with redundant pressure isolation feature BAKER HUGHES INCORPORATED 08 June 2016 15 December 2016
Wellbore method and apparatus for completion, production and injection EXXONMOBIL UPSTREAM RESEARCH COMPANY 15 December 2006 18 June 2014
Tester valve below a production packer HALLIBURTON ENERGY SERVICES INC. 10 May 2016 16 November 2017
Downhole diagnostic apparatus HALLIBURTON ENERGY SERVICES, INC. 23 March 2016 28 September 2017
Flow-activated flow control device and method of using same in wellbore completion assemblies BAKER HUGHES INCORPORATED 29 October 2015 06 May 2016
Packer TEISEKI DRILLING CO., LTD.,THE UNIVERSITY OF TOKYO 09 December 2016 22 June 2017
Mechanical support ring for elastomer seal CNPC USA CORPORATION,YUE, JIANPENG,PATSY, MATTHEW,TRAN, ANTHONY,XU, JIANHUI 22 November 2016 01 June 2017
Completion system for gravel packing with zonal isolation HALLIBURTON ENERGY SERVICES, INC. 05 June 2015 08 December 2016
Non-rotating drill-in packer HALLIBURTON ENERGY SERVICES, INC. 21 December 2015 29 June 2017
Pressure control apparatus and method SCHLUMBERGER CANADA LIMITED 18 January 2005 19 July 2005
Composite circular connector seal and method of use OCEANEERING INTERNATIONAL, INC. 13 April 2016 20 October 2016
Systems and methods for an expandable packer SCHLUMBERGER CANADA LIMITED,SERVICES PETROLIERS SCHLUMBERGER,SCHLUMBERGER TECHNOLOGY B.V.,SCHLUMBERGER TECHNOLOGY CORPORATION 09 October 2015 06 May 2016
Mechanical downhole pressure maintenance system HALLIBURTON ENERGY SERVICES, INC. 13 January 2015 21 July 2016
Downhole fiber optic measurement of packers during fluid injection operations BAKER HUGHES INCORPORATED 09 November 2016 26 May 2017
Zone isolation cementing system and method BAKER HUGHES INCORPORATED 14 October 2016 04 May 2017
See all similar patents <>

More Patents & Intellectual Property

PatSnap Solutions

PatSnap solutions are used by R&D teams, legal and IP professionals, those in business intelligence and strategic planning roles and by research staff at academic institutions globally.

PatSnap Solutions
Search & Analyze
The widest range of IP search tools makes getting the right answers and asking the right questions easier than ever. One click analysis extracts meaningful information on competitors and technology trends from IP data.
Business Intelligence
Gain powerful insights into future technology changes, market shifts and competitor strategies.
Workflow
Manage IP-related processes across multiple teams and departments with integrated collaboration and workflow tools.
Contact Sales
Clsoe
US10060198 Isolation packer automatically closing 1