A polymer microsphere emulsion as a high-performance shale stabilizer for water-based drilling fluids.

Autor:	Xu JG; School of Petroleum Engineering, China University of Petroleum (East China) Qingdao 266580 Shandong P. R. China xujiangen0@163.com qiuzs63@sina.com., Qiu Z; School of Petroleum Engineering, China University of Petroleum (East China) Qingdao 266580 Shandong P. R. China xujiangen0@163.com qiuzs63@sina.com., Zhao X; School of Petroleum Engineering, China University of Petroleum (East China) Qingdao 266580 Shandong P. R. China xujiangen0@163.com qiuzs63@sina.com., Mou T; School of Petroleum Engineering, China University of Petroleum (East China) Qingdao 266580 Shandong P. R. China xujiangen0@163.com qiuzs63@sina.com., Zhong H; School of Petroleum Engineering, China University of Petroleum (East China) Qingdao 266580 Shandong P. R. China xujiangen0@163.com qiuzs63@sina.com., Huang W; School of Petroleum Engineering, China University of Petroleum (East China) Qingdao 266580 Shandong P. R. China xujiangen0@163.com qiuzs63@sina.com.
Jazyk:	angličtina
Zdroj:	RSC advances [RSC Adv] 2018 Jun 07; Vol. 8 (37), pp. 20852-20861. Date of Electronic Publication: 2018 Jun 07 (Print Publication: 2018).
DOI:	10.1039/c8ra03492c
Abstrakt:	Interest in using nanomaterials to improve shale stability during drilling operations has been increasing. Herein, a polymer microsphere emulsion (PME) as a high-performance shale stabilizer for water-based drilling fluids (WDFs) was prepared via emulsion polymerization. The particle sizes in PME in aqueous solution ranged from 90 to 320 nm. PME was found to exhibit excellent salt tolerance and temperature resistance. The plugging performance of PME was tested through pressure transmission tests. The results indicated that the polymer microspheres in PME could effectively plug shale pores and reduce shale permeability. In addition, rolling recovery tests were used to evaluate the shale hydration inhibition performance of PME. It was found that PME showed great performance for decreasing shale hydration potential. These factors make PME a promising shale stabilizer for WDFs used to drill shale formations. Competing Interests: There are no conflicts to declare. (This journal is © The Royal Society of Chemistry.)
Databáze:	MEDLINE
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