发明名称 |
METHOD AND COMPOSITION TO INCREASE VISCOSITY OF CROSSLINKED POLYMER FLUIDS |
摘要 |
The invention discloses a well treatment composition for use in a subterranean formation comprising: a carrier fluid; and a viscoelastic surfactant being present in a concentration of less than about 1.5% by weight. Optionally, the fluid comprises a crosslinked polymer in a thickening amount in the carrier fluid. The invention also discloses a method to increase the viscosity of a fluid, the method comprising: providing a fluid comprising a thickening amount of a crosslinked polymer; adding a viscoelastic surfactant at a given concentration to the fluid; taking the fluid to a given temperature; defining a viscosity profile of the fluid depending of the concentration and the temperature; comparing said viscosity profile to a viscosity profile of the crosslinked polymer fluid alone; and defining an optimum concentration of the viscoelastic surfactant for each temperature.
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申请公布号 |
CA2674113(A1) |
申请公布日期 |
2010.01.28 |
申请号 |
CA20092674113 |
申请日期 |
2009.07.27 |
申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
MILNE, ARTHUR;BUELVAS, MANUEL JOSE LASTRE |
分类号 |
C09K8/68;B01F17/52;C09K8/584;C09K8/74;E21B43/04;E21B43/22;E21B43/26 |
主分类号 |
C09K8/68 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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