IP Library Granted Patent US 8,807,225
Granted Patent B2
US 8,807,225 · App. 13/857,561 · Granted Aug 19, 2014

Methods of using enhanced wellbore electrical cables

Inventors: Joseph Varkey (Sugar Land, TX); Byong Jun Kim (Sugar Land, TX); Garud Sridhar (Sugar Land, TX); Wayne Fulin (Sugar Land, TX); Noor F. Sait (Atyrau, KZ); Matthew Billingham (Neuilly sur Seine, FR); Andrea Sbordone (Costa Del Sol, SG)
Assignee: Schlumberger Technology Corporation
E21B19/22E21B43/26E21B17/2006H02G1/10E21B47/00D07B1/147H01B7/046E21B47/0001
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Quick Facts
Patent No.
US 8,807,225
App. No.
13/857,561
Granted
Aug 19, 2014
Kind
B2
Abstract

An embodiment of a method of deploying a cable into a wellbore penetrating a subterranean formation comprises providing a cable, wherein the cable comprises at least one insulated conductor, at least one armor wire layer surrounding the insulated conductor, a polymeric material disposed in interstitial spaces formed between armor wires forming the at least one armor wire layer, and interstitial spaces formed between the at least one armor wire layer and insulated conductor, the polymeric material forming a continuously bonded layer which separates and encapsulates the armor wires forming the at least one armor wire layer, and whereby the polymeric material is extended to form a smooth polymeric jacket around the at least one armor wire layer, introducing the cable into a wellbore and performing at least one operation in the wellbore utilizing the cable.

Claims (32)

1. A method of deploying a cable into a wellbore penetrating a subterranean formation, the method comprising:

a. providing a cable, wherein the cable comprises:

(i) at least one insulated conductor;

(ii) at least one armor wire layer surrounding the at least one insulated conductor;

(iii) a polymeric material disposed in interstitial spaces formed between armor wires forming the at least one armor wire layer, and in interstitial spaces formed between the at least one armor wire layer and the at least one insulated conductor, the polymeric material forming a continuously bonded layer which separates and encapsulates the armor wires forming the at least one armor wire layer, and whereby the polymeric material is extended to form a smooth polymeric jacket around the at least one armor wire layer; and,

b. introducing the cable into a wellbore;

c. performing at least one operation in the wellbore utilizing the cable.

2. The method of claim 1 wherein the cable comprises an inner armor wire layer and an outer armor wire layer.

3. The method of claim 1 wherein the armor wires forming the at least one armor wire layer are at least one of bimetallic armor wires, GIPS armor wires, or strength members formed of a plurality of stranded filaments.

4. The method of claim 1 wherein the armor wires forming the at least one armor wire layer comprise:

i. a central filament,

ii. at least three (3) filaments helically disposed adjacent the central filament, and

iii. a polymer jacket encasing the central filament and filaments disposed adjacent the central filament.

5. The method of claim 1 wherein the cable further comprises an outer jacket disposed around the polymeric jacket, wherein the outer jacket is bonded with the polymeric jacket to form a smooth outer jacket.

6. The method of claim 1 wherein performing comprises performing a logging operation.

7. The method of claim 6 wherein the logging operation is performed concurrent with injection of fluid or gas into the wellbore.

8. The method of claim 6 wherein the logging operation is performed on a subsea formation and wherein a crane is not utilized for introduction of the cable into the wellbore.

9. The method of claim 6 wherein the logging operation is performed on a wellbore with high fluid flow and severe vortex formation, whereby cavitations and torque effects placed upon the cable are significantly minimized.

10. The method of claim 6 wherein a surface pull friction factor on the cable is 0.3 or less.

11. The method of claim 1 wherein performing comprises performing a multi-stage fracturing operation.

12. The method of claim 10 wherein the cable is inserted into a tubular and at least one pack-off is used to seal an annulus formed between the cable and the tubular.

13. The method of claim 1 wherein the operation is performed on a subsea formation, and wherein the cable is inserted into a tubular and whereby at least one pack-off is used to seal an annulus formed between the cable and the tubular.

14. The method of claim 1 wherein the operation is performed using a tractor attached to the cable, whereby the cable has reduced friction with the wellbore wall.

15. The method of claim 1 wherein the wellbore comprises a casing with a coated inner surface, whereby abrasion of the coating by the cable is reduced.

16. The method of claim 1 wherein the wellbore comprises a casing with a glass fiber inner lining, whereby abrasion of the inner lining by the cable is reduced.

17. The method of claim 1 wherein the operation is performed on a subsea formation, whereby the use of the cable enables the elimination of a subsea grease injection system.

18. The method of claim 12 wherein the operation is performed on a subsea formation in an open water operation.

19. The method of claim 17 wherein the operation is performed utilizing a spoolable compliant guide system and wherein a pack-off and the cable are deployable through the spoolable compliant guide system.

20. The method of claim 18 wherein the operation is performed on the subsea formation and wherein the cable has reduced friction.

21. The method of claim 1 wherein the operation is performed on a subsea formation and wherein the operation comprises using at least one drilling riser, workover riser, completion riser, flexible riser, tensioned riser, high pressure riser, production riser, flowline, jumper, coiled tubing, umbilical, another kind of tubular, or a combination thereof.

22. The method of claim 1 whereby the operation performed in the wellbore is improved by reduced friction between the cable and the wellbore.

23. The method of claim 1 wherein introducing comprises introducing the cable from a spooled conveyance.

Continuity (4)
Continuation 12252553 · Oct 16, 2008
Continuation In Part 11813755
Provisional Application 60985771 · Nov 6, 2007
Related Publication 20130292126A1 · Nov 7, 2013