(IN201717036953) Casing flush fluid recyclable cleanout fluids and applications thereof 机翻标题: 暂无翻译,请尝试点击翻译按钮。

源语言标题
Casing flush fluid recyclable cleanout fluids and applications thereof
公开号/公开日
IN201717036953 A 2017-12-15 [IN201717036953] / 2017-12-15
申请号/申请日
2017IN-17036953 / 2017-10-17
发明人
NELSON Scott G;Leiming LI;Hong SUN;Jia ZHOU;
申请人
BAKER HUGHES;
主分类号
IPC分类号
C09K-008/52C09K-008/80
摘要
(IN201717036953) A method of removing residual proppant from a bottom of a casing after a fracturing operation comprises: circulating a casing flush fluid comprising a carrier and a superabsorbent polymer in the casing; and transporting the residual proppant from the bottom of the casing to a fracture created by a hydraulic fracturing operation.  A method for cleaning a wellbore comprises: introducing a cleanout fluid through a conduit inserted into the wellbore the cleanout fluid comprising a carrier fluid and a superabsorbent polymer; and receiving a returning fluid comprising debris at the surface of the wellbore from an annular space between the conduit and a wall of the wellbore.
机翻摘要
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地址
代理人
代理机构
;
优先权号
2015US-62140105 2015-03-30
主权利要求
(IN201717036953)  1. A method of removing residual proppant in a horizontal or deviated welibore from a bottom surface of a casing or tubing string after a fracturing operation, the method characterized by: Circulating a casing flush fluid comprising a carrier and a superabsorbent polymer in the casing or tubing;  and Transporting the residual proppant from the bottom surface of the casing or tubing to a fracture created by a hydraulic fracturing operation. 2. The method of claim 1, further characterized by setting up a bridge plug after the casing is treated with the casing flush fluid. 3. A method for cleaning out a welibore, the method characterized by: Introducing a cleanout fluid through a conduit inserted into the welibore, the cleanout fluid comprising a carrier fluid and a superabsorbent polymer present in amount effective to suspend and carry debris in the welibore to a surface of the welibore;  and Receiving a returning fluid comprising debris at the surface of the welibore from an annular space between the conduit and a wall of the welibore. 4. The method of claim 3, wherein the conduit comprises a drilling string, casing string, tubing string, joined tubing, or coiled tubing. 5. The method of claim 3, further characterized by: Adding water to the returning fluid to provide a thinned out composition comprising a slurry of hydrated particles of the superabsorbent polymer and debris settled out of the thinned out composition;   Separating the debris from the slurry;  and Filtering the slurry through a mesh filter to provide recycled hydrated particles of the superabsorbent polymer, the mesh filter having a mesh size smaller than a predetermined average size of the hydrated particles of the superabsorbent polymer. 6. The method of claim 3, further characterized by Combining the recycled hydrated particles of the superabsorbent polymer with a carrier and optionally with an unhydrated superabsorbent polymer to provide a treatment fluid, and Introducing the treatment fluid into a subterranean formation. 7. The method of any one of claims 1 to 6, wherein the cleanout fluid or the casing flush fluid is a foamed fluid further comprising a foaming agent and a gas constituent. 8. The method of claim 7, wherein the sum of the volumes of the gas constituent and the superabsorbent polymer is greater than about 50%, based on the total volume of the foamed fluid. 9. The method of any one of claims 1 to 6, wherein The carrier comprises water or brine;  and The superabsorbent polymer comprises repeating units derived from an acrylic acid or a salt thereof, an acrylate, an acrylamide, a vinylpyrrolidone, a vinyl acetate, a vinyl alcohol, a 2-acrylamide-2-methylpropanesulfonic acid, a derivative thereof, or a combination thereof;  and the superabsorbent polymer comprises a plurality of crosslinks formed prior to combining the superabsorbent polymer with the carrier. 10. The method of any one of claims 1 to 6, wherein the cleanout fluid or the casing flush fluid comprises about 30 to about 60 pounds of the superabsorbent polymer per one thousand gallons of the cleanout fluid or the casing flush fluid. 11. The method of any one of claims 1 to 6, wherein the cleanout fluid or the casing flush fluid further comprises about 2 pounds to about 25 pounds of a polysaccharide per one thousand gallons of the cleanout fluid or the casing flush fluid. 12. A method of recycling a superabsorbent polymer, the method characterized by: Adding water to a fluid containing hydrated particles of the superabsorbent polymer and a plurality of suspended particles that are not the same as the hydrated particles of the superabsorbent polymer;   Precipitating the suspended particles to form precipitated particles and a slurry comprising hydrated particles of the superabsorbent polymer;   Removing the precipitated particles;  and Filtering the slurry through a mesh filter to provide recycled hydrated particles of the superabsorbent polymer;  the mesh filter having a mesh size smaller than a predetermined average size of the hydrated particles of the superabsorbent polymer 13. The method of claim 12, wherein the suspended particles have at least a size or a density greater than the hydrated particles of the superabsorbent polymer. 14. The method of claim 12, further characterized by Combining the recycled hydrated particles of the superabsorbent polymer with a carrier to provide a treatment fluid, and Introducing the treatment fluid into a subterranean formation. 15. The method of any one of claims 12 to 14, further characterized by combining the recycled hydrated particles of the superabsorbent polymer with an unhydrated superabsorbent polymer to provide a treatment fluid;  and 16. Introducing the treatment fluid into a subterranean formation.
法律状态
(IN201717036953) LEGAL DETAILS FOR IN201717036953  Actual or expected expiration date=2037-10-17    Legal state=ALIVE    Status=PENDING     Event publication date=2017-10-17  Event code=IN/APP  Event indicator=Pos  Event type=Examination events  Application details  Application country=IN IN201717036953  Application date=2017-10-17  Standardized application number=2017IN-17036953     Event publication date=2017-12-15  Event code=IN/A  Event indicator=Pos  Event type=Examination events  Application laid open  Publication country=IN  Publication number=IN201717036953  Publication stage Code=A  Publication date=2017-12-15  Standardized publication number=IN201717036953
专利类型码
A
国别省市代码
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