AMPHIPHILIC RESERVOIR PROTECTING AGENT AND PREPARATION METHOD THEREOF AND DRILLING FLUID
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United States of America Patent
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Jul 26, 2016
Grant Date -
Aug 11, 2016
app pub date -
Sep 21, 2015
filing date -
Feb 6, 2015
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Abstract
The present subject matter relates to an amphiphilic reservoir protecting agent, including structural units denoted by the following formula (1), (2), (3) and (4). The present subject matter further provides a method for preparation of an amphiphilic reservoir protecting agent. The present subject matter further provides a drilling fluid that contains the amphiphilic reservoir protecting agent. The amphiphilic reservoir protecting agent and drilling fluid obtained in the present subject matter have high reservoir protection property and high shale inhibition property.
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