Synthesis and Performances of ZSC-201 as Solid Phase Chemical Cleaning Agent for Drilling Fluids
Yang Xiaohua 1 Xu Zhongxin 2 Wang Huajun 1 Sun Ju 1 Zhang Quanming 3 An Jicheng 3 Liu Minghua 1 Zhou Yaxian 1 Wang Zhonghua 1 (1.The Drilling Technology Research Institute of Zhongyuan Oil Exploration Bureau,Puyang 457001; 2.The Drilling Third Company of Zhongyuan Oil Exploration Bureau,Langkao 475000; 3.The Drilling Fourth Company of Zhongyuan Oil Exploration Bureau,Qingfeng 457321)
Synthesis and evaluation of ZSC-201 as solid phase chemical cleaning agent were introduced. The experimental results showed ZSC-201 had good capacities in inhibition of shale hydration and cleaning of nocuous solid, good compatability with anionic,cationic drilling fluids, and high synergistic action in inhibition of shale hydration. It had little effects on filtrate loss and rheological property of drilling fluid when adding effective amount of ZSC-201 . It had been successfully used in about 30 oil wells of Zhongyuan Oilfield, so it had a bright prospect in application.