Invention Grant
- Patent Title: Method for preventing scale formation in the presence of dissolved iron
- Patent Title (中): 在溶解铁存在下防止结垢形成的方法
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Application No.: US13116819Application Date: 2011-05-26
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Publication No.: US08236734B1Publication Date: 2012-08-07
- Inventor: Dong Shen , Randall J. Perkins , Dwayne D. Schielke , David H. Shcolnik
- Applicant: Dong Shen , Randall J. Perkins , Dwayne D. Schielke , David H. Shcolnik
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agency: Jones & Smith, LLP
- Agent John Wilson Jones
- Main IPC: E21B43/28
- IPC: E21B43/28
Abstract:
The present invention relates to a method of using threshold scale inhibitors of the formula: wherein n is 2 or 3 and M is hydrogen or an alkali metal cation, for preventing calcium carbonate, iron carbonate, and calcium sulfate scale formation in oilwell brines containing dissolved iron.
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