MMH 钻井液体系防塌防漏效果室内研究

Laboratory Research on Hole Sloughing Prevention and Antileakage of MMH Drilling Fluid System

李元启1,庞继勇2,赵同乐1,谢卫兵3

Li Yuanqi ,Pang Jiyong, Zhao Tongle, et al

1.中原石油勘探局钻井工程技术研究院;2.中原油田分公司井下特种作业处;3.中原油田分公司采油工程研究院

Drilling Engineering Technology Research Technology , Zhongyuan Petroleum Exploration Burea , Henan 457001 , P. R. China

针对中原油田勘探开发过程中易坍塌、漏失的复杂井段,提出用“安全窗口”新观念来分析其受力状态,以利于研究安全生产的有效措施。依据MMH 防塌防漏机理,借助OFI - 170 - 50 高温高压动失水仪、改型API 堵漏仪等仪器,分析了MMH 钻井液体系的防塌防漏效果,为现场安全生产提供了一定的理论根据。

During the exploration and development of Zhongyuan Oilfield , a new concept ,“differential pressure”was provided to analyze the force state of the complex layers to be easily caved and losted to be favourable to drawing up effective measures for safety production. Based on the hole sloughing prevention and antileakage mechanism of MMH drilling fluid system , with the OFI -170-50 model HTHP-dynamic filter press and improved API lost circulation locator etc , the effect of antileakage and hole sloughing , prevention with the drilling fluid system was analyzed , providifng a theoretical basis for safety production in the field.