新疆石油地质

新疆石油地质 ›› 2004, Vol. 25 ›› Issue (6): 656-658.

• 油藏工程 • 上一篇    下一篇

温吉桑油田水气交替非混相驱研究

杨永亮, 仓辉, 杨占红, 徐冰涛, 陈建琪   

  1. 中国石油吐哈油田分公司勘探开发研究院,新疆 哈密 839009
  • 收稿日期:2004-04-09 修回日期:2004-04-28 发布日期:2021-01-14
  • 作者简介:杨永亮(1967-),男,陕西泾阳人,硕士,油气田开发。联系电话:0902-2765347

Study on Project of W ater-Gas Alternating Immiscible Displacement in Wenjisang Oilfield

YANC Yong-liang, CANG Hui, YANG Zhan-hong, XU Bing-tao, CHEN Jian-qi   

  1. Research Institute of Exploration and Development, Tu-Ha Oilfield Company, Petrochina, Hami, Xinjiang 839009, China
  • Received:2004-04-09 Revised:2004-04-28 Published:2021-01-14

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摘要： 吐哈温吉桑油田储集层以正韵律或复合正韵律沉积为主,断层、裂缝不发育。油层少,砂体连通性好。同时,吐哈油区有丰富的天然气资源,这些特征非常适合注气驱,为此开展了注气非混相驱方案研究。通过对注气区块优选,注气影响因素分析,注气工程参数优化设计,完成温吉桑油田注天然气水气交替非混相驱方案,形成一.套低渗透油田有效实用的水气交替非混相驱注气方案设计方法。方案采用顶部注气,边部注水,水气交替非混相驱方式。水气比为1:1,交替周期半年,累计注入气段塞为0.25倍孔隙体积,提高采收率6%~7%.

关键词: 温吉桑油田, 剩余油, 注气, 方案, 采收率

Abstract: Wenjisang reservoir in Tu-Ha field is dominated by positive rhythm or complex positive rhythm with undeveloped fauls and fractures as well as few payzone but good sands connectivity. And abundant natural gas resource found in Tu-Ha field could be y ielded by gas injection immiscible displacement. By selecting the gas injection blocks,analy zing the factors of affecting gas injection and planning the optimized pa-rameters for gas injection,the project by water-gas alternating immiscible displacement has been accomplished, forming such an efective and. practicable process of top gas injection and edge water injection for low permeability oilfield, with water-gas ratio of l:1, altermating cycle of half a year, cumulative gas-injected plug of 0.25HCPV. The oil recovery in this reservoir could be increased up to 6%~7%.

Key words: Wenjisang oilfield, remained oil, gas injection, project, oil recovery

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