西南石油大学学报(自然科学版) ›› 2009, Vol. 31 ›› Issue (6): 105-109.DOI: 10.3863/j.issn.1674-5086.2009.06.023

• 石油与天然气工程 • 上一篇    下一篇

水平井井身轨迹对底水油藏开采效果的影响

贺丰果1 李良川2 岳湘安1 郑家朋2 江建林1   

  1. 1.中国石油大学石油工程教育部重点实验室,北京 昌平 102249; 2.中国石油冀东油田钻采工艺研究院,河北 唐山 063604
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-12-20 发布日期:2009-12-20

THE INFLUENCE OF HORIZONTAL WELL TRAJECTORY ON RECOVERY EFFECTIVENESS OF BOTTOM WATER OIL RESERVOIR

HE Feng-guo1 LI Liang-chuan2 YUE Xiang-an1 ZHENG Jia-peng2 JIANG Jian-lin1   

  1. 1.MOE Key Laboratory of Petroleum Engineering,China University of Petroleum,Changping Beijing 102249,China;2.Oil Production Technology Research Institute,Jidong Oilfield,Tangshan Hebei 063000,China)JOURNAL OF SOUTHWEST PETROLEUM UNIVERSITY(SCIENCE & TECHNOLOGY EDITION),VOL.31,NO.6,105-109,2009(ISSN 1674-5086,in Chinese
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-12-20 Published:2009-12-20

摘要: 建立了底水油藏水平井开采三维物理模型,通过改变水平井狗腿位置以及距底水高度,研究了水平井不同井身轨迹对水平井产能、底水与井筒压力梯度、含水率及采收率的影响。研究结果表明,凹型水平井狗腿远离跟部含水率上升较缓,无水采油期较长。凹型水平井狗腿位于中部时,狗腿深度较浅的模型采收率较高。注入冻胶堵剂成胶后底水开采,凹型水平井狗腿位于跟部的模型提高采收率幅度较高。实验结果符合实际油藏状况,为底水油藏水平井优化设计和现场堵水选井提供了参考。

关键词: 物理模型, 底水油藏, 水平井, 井身轨迹, 含水率, 采收率

Abstract: 3D physical model for horizontal well production of bottom water oil reservoir is established in this paper.The influence of horizontal well trajectory on horizontal well deliverability,bottom water and well bore pressure gradient,water cut and recovery is studied by changing dogleg location in horizontal well and the distance from bottom water.Results show that water cut increases slowly when the dogleg is far from heel in concave horizontal well,and the period of water-free production is longer.When the dogleg in concave horizontal well is located in the middle,and the dogleg is shallow in depth,the recovery is high.After injecting gel plugging and recovering by bottom water drive,the degree of enhancing recovery is higher when the dogleg is located at the heel.Experimental result is coincident with practical oil reservoir,which provides meaningful reference for horizontal well optimal design and in-situ shutoff of bottom water oil reservoir.

Key words: physical model, bottom water oil reservoir, horizontal well, well bore trajectory, water content, recovery

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