IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0769284
(2007-06-27)
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등록번호 |
US-7810567
(2010-11-01)
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발명자
/ 주소 |
- Daniels, John
- Waters, George
- Norris, Mark
- Brown, J. Ernest
- Bryant, Ian D.
- Mauth, Kevin
- Swaren, Jason
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출원인 / 주소 |
- Schlumberger Technology Corporation
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
62 인용 특허 :
16 |
초록
▼
Methods of making and using wellbore casing are described, one method comprising providing a plurality of flow-through passages in a portion of a casing while the casing is out of hole; temporarily plugging the flow-through passages with a composition while out of hole; running the casing in hole in
Methods of making and using wellbore casing are described, one method comprising providing a plurality of flow-through passages in a portion of a casing while the casing is out of hole; temporarily plugging the flow-through passages with a composition while out of hole; running the casing in hole in a wellbore intersecting a hydrocarbon-bearing formation; and exposing the composition to conditions sufficient to displace the composition from the flow-through passages while in hole. Methods of using the casing may include pumping a stimulation treatment fluid through the casing string and into a formation through the flow-through passages in the first casing joint; plugging the flow-through passages in the first casing section; and exposing a second casing joint of the casing string to conditions sufficient to displace the composition from the flow-through passages in the second casing joint.
대표청구항
▼
What is claimed is: 1. A method comprising: (a) providing a plurality of flow-through passages in a portion of a casing while the casing is out of hole; (b) forming the plurality of flow-through passages in one or more casing joint sections while out of hole; (c) temporarily plugging the flow-throu
What is claimed is: 1. A method comprising: (a) providing a plurality of flow-through passages in a portion of a casing while the casing is out of hole; (b) forming the plurality of flow-through passages in one or more casing joint sections while out of hole; (c) temporarily plugging the flow-through passages with a composition, wherein the composition comprises a water-soluble material selected from water-soluble inorganic materials, water-soluble organic materials, and combinations thereof; (d) running the casing and the one or more casing joint sections in hole in a wellbore intersecting a hydrocarbon-bearing formation; and (e) exposing the composition to conditions sufficient to displace the composition from the flow-through passages while in hole; wherein the running in hole comprises running in hole a casing string comprising a plurality of casing sections joined together by the one or more casing joint sections. 2. The method of claim 1 wherein the composition further comprises least one of member selected from the group consisting of organic materials, inorganic materials, and mixtures and reacted combinations thereof. 3. The method of claim 1 wherein the exposing comprises exposing the composition to an activator selected from physical, chemical, mechanical, radiational, thermal, or combination thereof. 4. The method of claim 3 wherein the activator is selected from change in temperature, change in composition, change in abrasiveness, change in force or pressure exerted on the composition, particle radiation, non-particle radiation, and combinations of two or more of these. 5. The method of claim 4 wherein the exposing comprises exposing the composition to two or more activators sequentially. 6. The method of claim 4 wherein the exposing comprises exposing the composition to two or more activators simultaneously. 7. The method of claim 1 wherein the composition is an acid-soluble composition, and the exposing step comprises deploying an acid solution from the surface in hole. 8. The method of claim 1 wherein the composition is an acid-soluble composition, and the exposing step comprises spotting an acid solution using coiled tubing. 9. The method of claim 1 wherein the composition comprises a polymer selected from acid-soluble polymers, basic-soluble polymers, and a water-soluble polymers. 10. The method of claim 1 wherein the exposing step comprises pumping a fluid having, a specific, controlled pH and temperature into the well through the casing, exposing the composition in the plugged flow-through passages to the fluid and degrading the composition. 11. The method of claim 1 further comprising treating the formation through the flow-through passages after the exposing step. 12. The method of claim 11 further comprising subsequently plugging the flow-through passages, and wherein a portion of the flow-through passages are plugged with a second composition, the method further comprising exposing the second composition to conditions sufficient to degrade the second composition, and subsequently treating the formation a second time. 13. The method of claim 1 wherein the water-soluble organic material is a water-soluble natural or synthetic polymer or gel. 14. The method of claim 13 wherein the water-soluble polymer or gel is selected from polyvinyls, polyacrylics, polyhydroxyacids, and combinations thereof. 15. The method of claim 14 wherein the water-soluble polymer or gel is selected from polyvinyl alcohol, polyvinyl butyral, polyvinyl formal, polyacrylamides, polyacrylic acid, polyalkylacrylic acids, interpolymers of acrylamide/acrylic acid/methacrylic acid, and combinations thereof. 16. The method of claim 1 wherein the temporarily plugging the flow-through passages is conducted with a composition while out of hole. 17. The method of claim 1 as used in a diversion technique. 18. A method comprising: (a) providing a plurality of flow-through passages in a portion of a casing while the casing is out of hole; (b) temporarily plugging the flow-through passages with a composition while out of hole, wherein the composition comprises a water-soluble material selected from water-soluble inorganic materials, water-soluble organic materials, and combinations thereof; (c) running the casing in hole in a wellbore intersecting a hydrocarbon-bearing formation; (d) exposing the composition to conditions sufficient to displace the composition from the flow-through passages while in hole; (e) treating the formation through the flow-through passages after the exposing step, and subsequently plugging the flow-through passages; and, (f) plugging a portion of the flow-through passages with a second composition, exposing the second composition to conditions sufficient to degrade the second composition, and subsequently treating the formation a second time. 19. The method of claim 18 further comprising: (g) pumping a fluid having, a specific, controlled pH and temperature into the wellbore through the casing, and exposing the composition in the plugged flow-through passages to the fluid and degrading the composition; and, (h) treating the formation. 20. The method of claim 18 wherein the formation is treated through the flow-through passages after step (d). 21. The method of claim 18 wherein the flow through passages are blocked. 22. A method comprising: (a) providing a plurality of casing sections and a plurality of casing joints for joining the casing sections, the casing joints having a plurality of flow-through passages therethrough temporarily plugged with a composition, the composition independently selected for each flow-through passage; (b) forming a casing string comprising the casing sections and casing joints and running the casing string in hole; (c) exposing a first casing joint of the casing string to conditions sufficient to displace the composition from the flow-through passages in the first casing joint; (d) pumping a stimulation treatment fluid into a formation through the flow-through passages in the first casing joint; (e) plugging the flow-through passages in the first casing section; and (f) exposing a second casing joint of the casing string to conditions sufficient to displace the composition from the flow-through passages in the second casing joint. 23. A method comprising: (a) providing a casing; (b) providing one or more casing joint sections, and forming a plurality of flow-through passages in the one or more casing joint sections while out of hole; (c) temporarily plugging the flow-through passages with a composition wherein the composition comprises a water-soluble material selected from water-soluble inorganic materials, water-soluble organic materials, and combinations thereof; (d) running the casing and the one or more casing joint sections in hole in a wellbore intersecting a hydrocarbon-bearing formation; and (e) exposing the composition to conditions sufficient to displace the composition from the flow-through passages while in hole; wherein the running in hole comprises running in hole a casing string comprising a plurality of casing sections joined together by the one or more casing joint sections.
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