In an embodiment, a sealant composition comprising a swelling agent is displaced into a wellbore penetrating a subterranean formation to maintain isolation of the formation. The sealant composition may be displaced into a permeable zone through which fluid can undesirably migrate. In another embodim
In an embodiment, a sealant composition comprising a swelling agent is displaced into a wellbore penetrating a subterranean formation to maintain isolation of the formation. The sealant composition may be displaced into a permeable zone through which fluid can undesirably migrate. In another embodiment, the sealant composition comprising the swelling agent is displaced into the wellbore to reduce a loss of a fluid to the formation during circulation of the fluid in the wellbore. The fluid may be, for example, a drilling fluid, a secondary sealant composition, a fracturing fluid, or combinations thereof. The sealant composition may be displaced into a flow pathway through which fluid can undesirably migrate into the formation. In both embodiments, the swelling agent contacts water such that it swells and thereby reduces fluid flow through the permeable zone/flow pathway. The swelling agent may comprise a crosslinked co-polymer.
대표청구항▼
What is claimed is: 1. A method of servicing a wellbore that penetrates a subterranean formation, comprising: placing a non-cementitious sealant composition comprising a swelling agent and a swell time lengthening additive for increasing a time prior to swelling of the swelling agent into the wellb
What is claimed is: 1. A method of servicing a wellbore that penetrates a subterranean formation, comprising: placing a non-cementitious sealant composition comprising a swelling agent and a swell time lengthening additive for increasing a time prior to swelling of the swelling agent into the wellbore to reduce a loss of a fluid to the subterranean formation during placement of the fluid in the wellbore, wherein the loss is a pre-completion or post-completion loss and wherein the swelling agent comprises crosslinked hydrolyzed polvacrylonitrile, salts of carboxyalkyl cellulose, carboxyalkyl starch or any carboxyalkyl polysaccharide, starch grafted with acrylonitrile and acrylate monomers, or combinations thereof. 2. The method of claim 1 wherein the servicing comprises drilling the wellbore. 3. The method of claim 1, wherein the servicing comprises hydraulic fracturing. 4. The method of claim 1, wherein the fluid comprises a drilling fluid, a secondary sealant composition, a fracturing fluid, an acidizing fluid, an injectant, or combinations thereof. 5. The method of claim 1, wherein the sealant composition is placed in a flow pathway into the subterranean formation through which the fluid can undesirably migrate. 6. The method of claim 5, wherein the swelling agent contacts water such that it swells and thereby reduces fluid flow through the flow pathway. 7. The method of claim 1, wherein the swelling agent comprises a crosslinked polymer having a diameter greater than or equal to about 0.01 mm in size. 8. The method of claim 1, wherein the servicing comprises squeeze cementing. 9. The method of claim 1, wherein the swell time lengthening additive comprises one or more monovalent and divalent salts such as acetate, silicate, aluminate, chloride, nitrate, sulfate, phosphate salts of alkali or alkaline earth metals. 10. The method of claim 1, wherein the swell time lengthening additive comprises sodium silicate. 11. The method of claim 10, wherein the sealant composition further comprises calcium chloride. 12. The method of claim 1, wherein the sealant composition further comprises an activator selected from the group consisting of ethyl acetate, urea, sugar, sodium acid pyrophosphate, chloride, acetate and nitrate salts of alkali and alkaline earth metals, and combinations thereof. 13. A method of servicing a wellbore that penetrates a subterranean formation, comprising: placing a non-cementitious sealant composition comprising a swelling agent and a swell time lengthening additive for increasing a time prior to swelling of the swelling agent into the wellbore to reduce a loss of a fluid to the subterranean formation during placement of the fluid in the wellbore, wherein the sealant composition is placed with the placement of the fluid and wherein the swelling agent comprises crosslinked polyacrylamide and the swell time lengthening additive comprises sodium silicate. 14. The method of claim 13, wherein the sealant composition further comprises calcium chloride. 15. The method of claim 13, wherein the servicing comprises drilling the wellbore. 16. The method of claim 13, wherein the fluid comprises a drilling fluid, a secondary sealant composition, a fracturing fluid, an acidizing fluid, an injectant, or combinations thereof. 17. The method of claim 13, wherein the sealant composition is placed in a flow pathway into the subterranean formation through which the fluid can undesirably migrate. 18. The method of claim 17, wherein the swelling agent contacts water such that it swells and thereby reduces fluid flow through the flow pathway. 19. The method of claim 13, wherein the sealant composition further comprises an activator selected from the group consisting of ethyl acetate, urea, sugar, sodium acid pyrophosphate, chloride, acetate and nitrate salts of alkali and alkaline earth metals, and combinations thereof. 20. A method of servicing a wellbore that penetrates a subterranean formation, comprising: placing a non-cementitious sealant composition comprising a swelling agent into the wellbore to reduce a loss of a fluid to the subterranean formation during placement of the fluid in the wellbore, wherein the loss is a pre-completion or post-completion loss, wherein the servicing comprises squeeze cementing and wherein the swelling agent comprises crosslinked polyacrylamide and the swell time lengthening additive comprises sodium silicate. 21. The method of claim 20, wherein the sealant composition further comprises an activator selected from the group consisting of ethyl acetate, urea, sugar, sodium acid pyrophosphate, chloride, acetate and nitrate salts of alkali and alkaline earth metals, and combinations thereof. 22. The method of claim 20, wherein the sealant composition further comprises calcium chloride. 23. The method of claim 20, wherein the fluid comprises a drilling fluid, a secondary sealant composition, a fracturing fluid, an acidizing fluid, an injectant, or combinations thereof. 24. The method of claim 20, wherein the sealant composition is placed in a flow pathway into the subterranean formation through which the fluid can undesirably migrate. 25. The method of claim 24, wherein the swelling agent contacts water such that it swells and thereby reduces fluid flow through the flow pathway. 26. A method of servicing a wellbore that penetrates a subterranean formation, comprising: placing a non-cementitious sealant composition comprising a swelling agent, a reinforcing agent and an activator into the wellbore to reduce a loss of a fluid to the subterranean formation during placement of the fluid in the wellbore, wherein the swelling agent comprises crosslinked polyacrylamide, the reinforcing agent comprises sodium silicate, and the activator comprises calcium chloride. 27. The method of claim 26, wherein the sealant composition further comprises fresh water. 28. The method of claim 26, wherein an amount of the sodium silicate present in the sealant composition is in a range of from about 33% to about 67% by total volume of the sodium silicate and the fresh water combined. 29. The method of claim 26, wherein the servicing comprises drilling the wellbore. 30. The method of claim 26, wherein the fluid comprises a drilling fluid, a secondary sealant composition, a fracturing fluid, an acidizing fluid, an injectant, or combinations thereof. 31. The method of claim 26, wherein the sealant composition is placed in a flow pathway into the subterranean formation through which the fluid can undesirably migrate. 32. The method of claim 31, wherein the swelling agent contacts water such that it swells and thereby reduces fluid flow through the flow pathway. 33. A method of servicing a wellbore that penetrates a subterranean formation, comprising: placing a non-cementitious sealant composition comprising a swelling agent and a swell time lengthening additive for increasing a time prior to swelling of the swelling agent into the wellbore to reduce a loss of a fluid to the subterranean formation during placement of the fluid in the wellbore, wherein the sealant composition further comprises a carrier fluid and wherein the swelling agent comprises crosslinked polyacrylamide and the swell time lengthening additive comprises sodium silicate. 34. The method of claim 33, wherein the carrier fluid comprises a fresh water, a brine, a chloride solution, a hydrocarbon, a synthetic fluid, or combinations thereof. 35. The method of claim 33, wherein the sealant composition further comprises an activator selected from the group consisting of ethyl acetate, urea, sugar, sodium acid pyrophosphate, chloride, acetate and nitrate salts of alkali and alkaline earth metals, and combinations thereof. 36. The method of claim 33, wherein the sealant composition further comprises calcium chloride. 37. The method of claim 33, wherein the fluid comprises a drilling fluid, a secondary sealant composition, a fracturing fluid, an acidizing fluid, an injectant, or combinations thereof. 38. The method of claim 33, wherein the sealant composition is placed in a flow pathway into the subterranean formation through which the fluid can undesirably migrate. 39. The method of claim 38, wherein the swelling agent contacts water such that it swells and thereby reduces fluid flow through the flow pathway. 40. A method of servicing a wellbore that penetrates a subterranean formation, comprising: placing a non-cementitious sealant composition comprising fresh water, sodium silicate, calcium chloride and a swelling agent into the wellbore to reduce a loss of a fluid to the subterranean formation during placement of the fluid in the wellbore, wherein the sealant composition comprises a reinforcing agent selected from the group consisting of an alkali metal metasilicate compound, an alkali metal silicate compound, an alkali metal aluminate, and combinations thereof and an activator selected from the group consisting of ethyl acetate, urea, sugar, sodium acid pyrophosphate, chloride, acetate and nitrate salts of alkali and alkaline earth metals, and combinations thereof; and wherein an amount of the sodium silicate present in the sealant composition is in a range of from about 25% to about 75% by total volume of the sodium silicate and the fresh water combined. 41. The method of claim 40, wherein the fluid comprises a drilling fluid, a secondary sealant composition, a fracturing fluid, an acidizing fluid, an injectant, or combinations thereof. 42. The method of claim 40, wherein the sealant composition is placed in a flow pathway into the subterranean formation through which the fluid can undesirably migrate. 43. The method of claim 42, wherein the swelling agent contacts water such that it swells and thereby reduces fluid flow through the flow pathway. 44. A method of servicing a wellbore that penetrates a subterranean formation, comprising: placing a non-cementitious sealant composition comprising a swelling agent and a swell time lengthening additive for increasing a time prior to swelling of the swelling agent into the wellbore to reduce a loss of a fluid to the subterranean formation during placement of the fluid in the wellbore, wherein an amount of the swelling agent present in the sealant composition is in a range of from about 0.001 ppg to about 5 ppg and wherein the swelling agent comprises crosslinked polyacrylamide and the swell time lengthening additive comprises sodium silicate. 45. The method of claim 44, wherein the sealant composition further comprises an activator selected from the group consisting of ethyl acetate, urea, sugar, sodium acid pyrophosphate, chloride, acetate and nitrate salts of alkali and alkaline earth metals, and combinations thereof. 46. The method of claim 44, wherein the sealant composition further comprises calcium chloride. 47. A method of servicing a wellbore that penetrates a subterranean formation, comprising: placing a non-cementitious sealant composition comprising a swelling agent into the wellbore to reduce a loss of a fluid to the subterranean formation during placement of the fluid in the wellbore, wherein the sealant composition further comprises an effective amount of swell time lengthening additive to increase a swell time of the swelling agent to in a range of from about 5 minutes to about 16 hours and wherein the swelling agent comprises crosslinked polyacrylamide and the sealant composition further comprises sodium silicate. 48. The method of claim 47, wherein the sealant composition further comprises an effective amount of a swell time lengthening additive to increase a swell time of the swelling agent to in a range of from about 1 hour to about 16 hours. 49. The method of claim 47, wherein the sealant composition further comprises an activator selected from the group consisting of ethyl acetate, urea, sugar, sodium acid pyrophosphate, chloride, acetate and nitrate salts of alkali and alkaline earth metals, and combinations thereof. 50. The method of claim 47, wherein the sealant composition further comprises calcium chloride. 51. The method of claim 47, wherein the fluid comprises a drilling fluid, a secondary sealant composition, a fracturing fluid, an acidizing fluid, an injectant, or combinations thereof. 52. A method of servicing a completed wellbore that penetrates a subterranean formation, comprising: placing a non-cementitious sealant composition comprising a swelling agent and a swell time lengthening additive for increasing a time prior to swelling of the swelling agent into the wellbore to maintain isolation of the subterranean formation, wherein the servicing comprises squeeze cementing or hydraulic fracturing and wherein the swelling agent comprises crosslinked polyacrylamide and the swell time lengthening additive comprises sodium silicate. 53. The method of claim 52, wherein the sealant composition is placed into a permeable zone through which fluid can undesirably migrate. 54. The method of claim 53, wherein the permeable zone comprises a fissure, a crack, a fracture, a flow channel, a void, a perforation, or combinations thereof. 55. The method of claim 53, wherein the permeable zone is located in a conduit in the wellbore, a sealant column in an annulus of the wellbore, a microannulus of the wellbore, or combinations thereof. 56. The method of claim 53, wherein the swelling agent contacts water such that it swells and thereby reduces fluid flow through the permeable zone. 57. The method of claim 52, wherein the sealant composition further comprises an activator selected from the group consisting of ethyl acetate, urea, sugar, sodium acid pyrophosphate, chloride, acetate and nitrate salts of alkali and alkaline earth metals, and combinations thereof. 58. The method of claim 52, wherein the sealant composition further comprises calcium chloride. 59. A method of servicing a completed wellbore that penetrates a subterranean formation, comprising: placing a non-cementitious sealant composition comprising a swelling agent and a swell time lengthening additive for increasing a time prior to swelling of the swelling agent into the wellbore to maintain isolation of the subterranean formation, wherein the servicing comprises squeeze cementing or hydraulic fracturing and wherein the swelling agent comprises a crosslinked polymer having a diameter greater than or equal to about 0.01 mm in size. 60. A method of servicing a wellbore that penetrates a subterranean formation, comprising: placing a non-cementitious sealant composition comprising a swelling agent and a swell time lengthening additive for increasing a time prior to swelling of the swelling agent into the wellbore to reduce a loss of a fluid to the subterranean formation during placement of the fluid in the wellbore, wherein the loss is a pre-completion or post-completion loss and wherein the swelling agent comprises crosslinked polyacrylamide and the swell lengthening additive comprises sodium silicate. 61. The method of claim 60, wherein the sealant composition further comprises calcium chloride.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (125)
Burge ; Theodor, Additive for mortar and concrete.
Baughman Kenneth E. (5035 Grape Houston TX 77096) Doyle Earl N. (1737 Campbell Rd. Houston TX 77055), Apparatus and method for plugging voids in a ground stratum.
Brooks, James E.; Yang, Wenbo; Grove, Brenden M.; Walton, Ian C.; Kothari, Manish; Behrmann, Lawrence A.; Fayard, Alfredo; Markel, Daniel C.; Voreck, Wallace E., Components and methods for use with explosives.
Myers, Kent R.; Brown, Richard K.; Krause, Stewart W.; Parekh, Shobha B.; Stichman, Robert W., Composition for use in sealing a porous subterranean formation, and methods of making and using.
Mueller Heinz (Monheim DEX) Herold Claus-Peter (Mettmann DEX) von Tapavicza Stephan (Erkrath DEX) Grimes Douglas J. (Beaconsfield GB2) Braun Jean-Marc (Celle DEX) Smith Stuart P. T. (Kincardineshire , Drilling fluids and muds containing selected ester oils.
Boyle Daniel R. (Ottawa CAX) Thibedeau Russell J. (Spencerville CAX) Forconi Romeo (Nepean CAX), Emplacement of filter packs and seals for groundwater monitoring.
Delhommer Harold J. (Houston TX) Walker Clarence O. (Richmond TX), Encapsulated oil absorbent polymers as lost circulation additives for oil based drilling fluids.
Caskey Terrence L. (Concord CA) Jorgensen Janine L. (Clayton CA) Trimmer Johnny L. (Antioch CA), Hollow fiber membrane fluid separation device adapted for boreside feed.
Phillips Kenneth G. (River Forest IL) Bernot Robert (Chicago IL) Ballweber Edward G. (Glenwood IL), Hydrolyzed polyacrylamide latices for secondary oil recovery.
McDonald Charles J. (Midland MI) Van Landingham John V. (Sapulpa OK) Givens Steven P. (Midland MI), Method for controlling permeability of subterranean formations.
McDonald Charles J. (Midland MI) Van Landingham John V. (Sapulpa OK) Givens Steven P. (Midland MI), Method for controlling permeability of subterranean formations.
Hutchins Richard D. (Placentia CA) Sandiford Burton B. (Balboa Island CA) Dovan Hoai T. (Yorba Linda CA), Method for selectively reducing subterranean water permeability.
Childs Jerry (Duncan OK) Sabins Fred (Duncan OK) Taylor Mary J. (Sterling OK), Method of using thixotropic cements for combating lost circulation problems.
Reddy, B. Raghava; Eoff, Larry S.; Whitfill, Donald L.; Wilson, J. Michael; Berryhill, Denise; Fitzgerald, Russel M.; Becker, Thomas E.; Weaver, Jimmie D., Methods of consolidating formations or forming chemical casing or both while drilling.
Reddy, B. Raghava; Ravi, Krishna M.; Griffith, James E.; Zamora, Frank; Luke, Karen; Dennis, Jr., John L.; Cox, Ricky A., Methods of generating gas in well fluids.
Chatterji, Jiten; Cromwell, Roger S.; King, Bobby J.; Brenneis, D. Chad; Gray, Dennis W.; Crook, Ronald J.; Chen, Shih-Ruey T.; DeVito, Valentino L.; Frederick, Kevin W.; Smith, Kevin W.; Loeffler, R, Methods of treating subterranean zones penetrated by well bores.
Brothers, Lance E.; Keener, Krista L.; Braden, James A.; Vijn, Jan Pieter; Dao, Bach, Methods, well cement compositions and lightweight additives therefor.
Qin Jian (Appleton WI) Gross James R. (Appleton WI) Mui William J. (Neenah WI) Ning Xin (Appleton WI) Schroeder Wen Z. (Appleton WI) Sun Tong (Neenah WI), Modified polysaccharides having improved absorbent properties and process for the preparation thereof.
Burdge David N. (Highlands Ranch CO) McAtee Richard W. (Littleton CO) Sydansk Robert D. (Littleton CO), Plugging a tubing/casing annulus in a wellbore with a polymer gel.
Dymond Brian (West Yorkshire GB2) Langley John (West Yorkshire GB2) Hawe Malcolm (West Yorkshire GB2), Polymeric compositions and methods of using them.
Dymond Brian (West Yorkshire GBX) Langley John (West Yorkshire GBX) Hawe Malcolm (West Yorkshire GBX), Polymeric compositions and methods of using them.
Richardson Edwin A. (Houston TX) Scheuerman Ronald F. (Bellaire TX) Berkshire David C. (Houston TX) Reisberg Joseph (Houston TX) Lybarger James H. (Houston TX), Temporarily plugging a subterranean reservoir with a self-foaming aqueous solution.
Hessert James E. (Bartlesville OK) Johnston ; Jr. Chester C. (Bartlesville OK), Treatment of subsurface gas-bearing formations to reduce water production therefrom.
Mueller Heinz (Monheim DEX) Herold Claus-Peter (Mettmann DEX) von Tapavicza Stephan (Erkrath DEX) Grimes Douglas J. (Beaconsfield GB2) Braun Jean-Marc (Celle DEX) Smith Stuart P. T. (Kincardineshire , Use of selected ester oils in drilling fluids and muds.
Mueller Heinz,DEX ; Herold Claus-Peter,DEX ; von Tapavicza Stephan,DEX ; Grimes Douglas J.,GB6 ; Braun Jean-Marc,LUX ; Smith Stuart P. T.,GB6, Use of selected ester oils in drilling fluids and muds.
Mueller Heinz (Monheim DEX) Herold Claus-Peter (Mettmann DEX) von Tapavicza Stephan (Erkrath DEX) Neuss Michael (Cologne DEX) Burbach Frank (Meersbusch DEX), Use of selected ester oils of low carboxylic acids in drilling fluids.
Oliver ; Jr. John E. (Clear Fluids ; Inc. P.O. Box 27526 Houston TX 77227) Singer Arnold M. (Clear Fluids ; Inc. P.O. Box 27526 Houston TX 77227), Well cementing process.
Eoff, Larry Steven; Reddy, B. Raghava; Pascarella, Natalie; Mebratu, Amare, Methods for improving the distribution of a sealant composition in a wellbore and treatment fluids providing the same.
McDonald, Michael James; Li, Xianglian; Cramer, Brett Howard; Short, Kelly Paul, Self-pressurizing soluble alkali silicate for use in sealing subterranean spaces.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.