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| 控压钻井井筒压力控制技术初探 | |
| 引用本文： | 王延民,唐继平,胥志雄,李皋,阎凯.控压钻井井筒压力控制技术初探[J].特种油气藏,2011,18(1):132-134,142. |
| 作者姓名： | 王延民 唐继平 胥志雄 李皋 阎凯 |
| 作者单位： | 1. 油气藏地质及开发工程国家重点实验室,西南石油大学,四川,成都,610500;中油塔里木油田公司,新疆,库尔勒,841000 2. 中油塔里木油田公司,新疆,库尔勒,841000 3. 油气藏地质及开发工程国家重点实验室,西南石油大学,四川,成都,610500 |
| 基金项目： | 国家高技术研究发展计划("863"计划) |
| 摘 要： | 常规钻井技术钻遇压力衰竭或复杂地层时,经常遇到钻井液安全密度窗口窄,并引起漏、喷、卡、塌等井下复杂问题。控压钻井(MPD)通过控制井筒环空循环流体介质的流量与流态、井口施加压力等因素,结合环空压降模型计算,使环空压力保持在一定的范围,就可以降低甚至避免这些钻井问题,减少非钻井作业时间,提高钻井效率,降低作业成本。 |
| 关 键 词： | 控压钻井 压降 排量 地层压力 回压 |
An approach to annular pressure control by managed pressure drilling |
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| WANG Yan-min,TANG Ji-ping,XU Zhi-xiong,LI Gao,YAN Kai.An approach to annular pressure control by managed pressure drilling[J].Special Oil & Gas Reservoirs,2011,18(1):132-134,142. | |
| Authors: | WANG Yan-min TANG Ji-ping XU Zhi-xiong LI Gao YAN Kai |
| Affiliation: | WANG Yan-min1,2,TANG Ji-ping2,XU Zhi-xiong2,LI Gao1,YAN Kai2(1.State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu,Sichuan 610500,China,2.Tarim Oilfield Company,PetroChina,Korla,Xinjiang 841000,China) |
| Abstract: | Narrow operation window is quite common in conventional drilling while encountering pressure depletion or complex formation,leading to downhole problems such as leaking,sticking,blowout,and hole collapse,etc.Managed pressure drilling(MPD) can mitigate or even avert these drilling problems by manipulating annular pressure through controlling the flow rate and regime of annulus circulating media and the pressure applied at wellhead in conjunction with model calculation of annular pressure drop.This technology... |
| Keywords: | managed pressure drilling pressure drop flow rate formation pressure back pressure |
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