Invention Grant
US09458372B2 Fluid loss control agents and compositions for cementing oil and gas wells comprising said fluid loss control agent
有权
用于固井油气井的流体损失控制剂和组合物，包括所述流体损失控制剂
- Patent Title: Fluid loss control agents and compositions for cementing oil and gas wells comprising said fluid loss control agent
- Patent Title (中): 用于固井油气井的流体损失控制剂和组合物，包括所述流体损失控制剂
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Application No.: US14597136Application Date: 2015-01-14
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Publication No.: US09458372B2Publication Date: 2016-10-04
- Inventor: Michel Michaux , Bruno Drochon , Sylwia Komocki
- Applicant: Schlumberger Technology Corporation
- Applicant Address: US TX Sugar Land
- Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
- Current Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
- Current Assignee Address: US TX Sugar Land
- Agent Jeremy D. Tillman; Tim Curington; Michael Flynn
- Priority: EP04293073 20041221
- Main IPC: E21B33/13
- IPC: E21B33/13 ; C09K8/487 ; C04B28/02 ; C04B40/00 ; C04B24/26 ; E21B33/14
Abstract:
A method of cementing a well is disclosed. The method comprising pumping into the well a cement slurry comprising a solid blend including cement, water, and a fluid loss control agent, and allowing the cement slurry to set. The fluid loss control agent comprises a styrene-butadiene latex and a high molecular-weight water-soluble polymer such as a copolymer AMPS-Am. The addition of the water-soluble polymer allows drastic reduction of the quantity of latex required to achieve fluid loss control performance and even gas migration control.
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