Method for preparation of biomimetic polymer for stabilizing wellbore and drilling fluid

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United States of America Patent

PATENT NO 9410068
APP PUB NO 20160053156A1
SERIAL NO

14862795

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Abstract

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The present invention provides a biomimetic polymer for stabilizing wellbore, a method for preparation of the biomimetic polymer, and a drilling fluid. The polymer contains carboxymethyl chitosan that serves as a backbone and dopamine-derived groups grafted on the backbone. The polymer provided in the present invention can improve the strength of shale in the wellbore, seal the shale pores and reduce the filter loss of drilling fluid, and thereby attains an effect of stabilizing the wellbore in shale formation in drilling process.

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Patent Owner(s)

Patent OwnerAddress
CHINA UNIVERSITY OF PETROLEUM (BEIJING)102249 BEIJING CITY CHANGPING DISTRICT FUXUE ROAD MUNICIPAL DISTRICT BEIJING CITY 102249

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Junbin Chengdu, CN 10 20
Jiang, Guancheng Beijing, CN 47 76
Luo, Taotao Chengdu, CN 4 15
Ouyang, Wei Chengdu, CN 27 143
Wu, Xianzhu Chengdu, CN 12 32
Xuan, Yang Beijing, CN 12 50

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