The Deep Well Drilling Technique of Shuangyushi Structure in Western Sichuan Region

Abstract

There are lots of difficult problems on deep well drilling of Shuangyushi structure in Western Sichuan region, such as shallow leakage, variation of high–low pressure, fault development, indeterminacy on high-pressure brine, and poor drillability in some formation, seriously affected the drilling cycle. In order to decrease the downhole accidents and improve the drilling speed, this article has carried out a series of safety and fast drilling technology research and application, including optimization of wellbore structure to realize the geological target, optimization of drilling methods, the bits, and so on. Through using these technologies, great achievement was obtained. This study is of great significance for safety production and for cost decreasing and benefit increasing in deep well drilling of Western Sichuan region.

Copyright 2017, Shaanxi Petroleum Society.

This paper was prepared for presentation at the 2017 International Petroleum and Petrochemical Technology Conference in Beijing, China, 20–22 March, 2017.

This paper was selected for presentation by the IFEDC&IPPTC Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper, as presented, have not been reviewed by the IFEDC&IPPTC Committee and are subject to correction by the author(s). The material does not necessarily reflect any position of the IFEDC&IPPTC Committee, its members. Papers presented at the Conference are subject to publication review by Professional Committee of Petroleum Engineering of Shaanxi Petroleum Society. Electronic reproduction, distribution, or storage of any part of this paper for commercial purposes without the written consent of Shaanxi Petroleum Society is prohibited. Permission to reproduce in print is restricted to an abstract of not more than 300 words; illustrations may not be copied. The abstract must contain conspicuous acknowledgment of IFEDC&IPPTC. Contact email: paper@ifedc.org or paper@ipptc.org.