钻井液与完井液2017，Vol.34Issue(5)：58-61,4.DOI:10.3969/j.issn.1001-5620.2017.05.011
简易控压钻井技术在河西务构造的应用
Application of Simple Managed Pressure Drilling Technology in Hexiwu Structure
摘要
Abstract
The Hexiwu Structure in Huabei Oilfield is characteristic of high pressure, difficult production and low efficiency, and narrow safe drilling window, water/gas kick, lost circulation and differential pipe sticking are problems frequently happened during drilling operations. To resolve these problems, simple managed pressure drilling technology was applied during drilling operations. Based on applied research work, the mud density and the level of the managed pressure at wellhead were optimized. By optimizing the position of the "pressure equilibrium point", mud density was reduced, and severe water/gas kick and lost circulation were avoided. Application of the technology on 7 wells showed that mud density was reduced by 0.1 g/cm3, and average rate of penetration increased by 64.7％, proving that the simple managed pressure drilling technology is worth spreading in areas with high pressure and low permeability formations, or where safe drilling window is narrow.关键词
控压钻井/压力平衡点/旋转控制头/节流管汇Key words
Managed pressure drilling/Pressure equilibrium point/Swivel control head/Choke manifold分类
能源科技引用本文复制引用
李振选,熊腊生,马春晖,王帅,崔树清,申法忠,张勇,刘义彬..简易控压钻井技术在河西务构造的应用[J].钻井液与完井液,2017,34(5):58-61,4.基金项目
中国石油天然气集团公司重大现场试验项目"华北深潜山优快钻完井与试油测试技术现场试验"子课题"提速配套技术研究"(2014F-1802). （2014F-1802）
