Clean fluid loss control additives

Patent metadata

Field	Value
Publication number	US-9416306-B2
Application number	US-201313780677-A
Country	US
Kind code	B2
Filing date	Feb 28, 2013
Priority date	Feb 28, 2013
Publication date	Aug 16, 2016
Grant date	Aug 16, 2016

Abstract

Methods of providing fluid loss control in a portion of a subterranean formation comprising: providing a treatment fluid comprising a base fluid and a plurality of seeds; introducing the treatment fluid into a portion of a subterranean formation penetrated by a well bore such that the seeds block openings in the subterranean formation to provide fluid loss control; and degrading the seeds over time within the subterranean formation. In some methods, the seeds are present in the treatment fluid in an amount of at least about 5 pounds per barrel. In addition, in some methods the seeds are preferably degradable.

First claim

What is claimed is:

1. A method of providing fluid loss control in a portion of a subterranean formation comprising:
providing a treatment fluid comprising a base fluid and a plurality of whole seeds, the seeds consisting of whole basil seeds;
introducing the treatment fluid into a portion of a subterranean formation penetrated by a well bore such that the seeds swell and block openings in the subterranean formation to provide fluid loss control; and,
degrading the whole basil seeds over time within the subterranean formation.

2. The method of claim 1 wherein the seeds are a compliant material.

3. The method of claim 1 wherein the treatment fluid further comprises a traditional fluid loss control additive.

4. The method of claim 3 wherein the traditional fluid loss control additive is a degradable particulate.

5. The method of claim 1 wherein the seeds are present in the treatment fluid in an amount from about 0.1 pounds per barrel to about 150 pounds per barrel.

6. The method of claim 1 wherein the treatment fluid is a viscosified fluid.

7. The method of claim 1 wherein the treatment fluid is used to provide fluid loss control wherein the treatment fluid is placed into a portion of the subterranean formation at a pressure sufficient to create or extend at least one fracture therein and the seeds plug openings in the fracture faces and/or the surrounding formation to provide fluid loss control in the portion of the subterranean formation.

8. The method of claim 1 wherein the treatment fluid is used as a drilling fluid and the seeds reduce loss circulation.

9. A method of providing fluid loss control in a portion of a subterranean formation comprising:
providing a treatment fluid comprising a base fluid and whole seeds, wherein the seeds are present in the treatment fluid in an amount of at least about 5 pounds per barrel, and the seeds consisting of whole basil seeds;
introducing the treatment fluid into a portion of a subterranean formation penetrated by a well bore such that the seeds swell and block openings in the subterranean formation to provide fluid loss control;
degrading the seeds over time within the subterranean formation.

10. The method of claim 9 wherein the seeds are a compliant material.

11. The method of claim 9 wherein the treatment fluid further comprises a traditional fluid loss control additive.

12. The method of claim 11 wherein the traditional fluid loss control additive is a degradable particulate.

13. The method of claim 9 wherein the seeds are present in the treatment fluid in an amount from about 0.01 ppb to about 150 ppb.

14. The method of claim 9 wherein the treatment fluid is a viscosified fluid.

15. The method of claim 9 wherein the treatment fluid is used to provide fluid loss control wherein the treatment fluid is placed into a portion of the subterranean formation at a pressure sufficient to create or extend at least one fracture therein and the seeds plug openings in the fracture faces and/or the surrounding formation to provide fluid loss control in the portion of the subterranean formation.

16. The method of claim 9 wherein the treatment fluid is used as a drilling fluid and the seeds reduce loss circulation.

Assignees

• Halliburton Energy Services Inc

Inventors

• Savari Sharath
• Jamison Dale E
• Kothamasu Ramyakrishna
• Gantepla Anita
• Mcdaniel Cato

Classifications

• C09K8/50

  Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls (compositions for consolidating loose sand or the like around wells C09K8/56) · CPC title

• C09K8/035 Primary

  Organic additives · CPC title

• C09K2208/04

  Hulls, shells or bark containing well drilling or treatment fluids · CPC title

• E21B21/003

  Means for stopping loss of drilling fluid (plastering the borehole wall E21B33/138) · CPC title

• C09K8/516

  characterised by their form or by the form of their components, e.g. encapsulated material · CPC title