岩性油气藏 ›› 2022, Vol. 34 ›› Issue (5): 162–170.doi: 10.12108/yxyqc.20220514

• 石油工程与油气田开发 • 上一篇    

气顶边水油藏气/水驱产油量贡献评价方法

孟智强, 葛丽珍, 祝晓林, 王永平, 朱志强   

  1. 中海石油(中国)有限公司天津分公司, 天津 300459
  • 收稿日期:2022-02-15 修回日期:2022-06-01 出版日期:2022-09-01 发布日期:2022-09-06
  • 作者简介:孟智强(1990-),男,工程师,主要从事油藏开发方案研究方面的工作。地址:(300459)天津市滨海新区海川路2121号。Email:mengzhiqiangbox@126.com。
  • 基金资助:
    “十三五”国家科技重大专项“渤海油田加密调整及提高采收率油藏工程技术示范”（编号：2016ZX05058001）

Oil production contribution evaluation method of gas/water drive in gas-cap and edge-water reservoirs

MENG Zhiqiang, GE Lizhen, ZHU Xiaolin, WANG Yongping, ZHU Zhiqiang   

  1. Tianjin Branch of CNOOC Ltd., Tianjin 300459, China
  • Received:2022-02-15 Revised:2022-06-01 Online:2022-09-01 Published:2022-09-06

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摘要： 通过对锦州油田S31油藏的油气、油水两相渗流规律研究，结合物质平衡方程，推导建立了气/水驱产油量贡献评价方法，量化了该类油藏气驱和水驱在累计产油量中的贡献，为气顶边水油藏可采储量和开发效果评估奠定了基础。研究结果表明：①水平井井网将气顶边水油藏分为受气驱作用和受水驱作用2个部分，可分别对其进行可采储量及开发效果评价；②气/水驱产油量贡献评价方法反映了该类油藏气/水驱贡献产油量与生产气油比、含水率存在内在联系，利用生产动态数据可计算出气驱和水驱在累计产油量中的贡献；③利用气驱、水驱贡献累计产油量和生产动态数据，结合气驱、水驱特征曲线，以及气驱、水驱开发效果评价图版，可以评价气顶边水油藏可采储量和开发效果，为油田后续挖潜指明方向。

关键词: 气驱, 水驱, 产油量贡献, 可采储量预测, 开发效果评价, 挖潜, 气顶边水油藏, S31油藏, 锦州油田

Abstract: Based on the study of oil-gas and oil-water two-phase seepage law in S31 reservoir of Jinzhou oilfield, combined with the material balance equation,the oil production contribution evaluation method of oil of gas/water drive was derived and established,and the contribution of gas drive and water drive in the cumulative oil production of this kind of reservoir was quantified,which lays a foundation for the evaluation of recoverable reserves and development effects of gas-cap and edge-water reservoirs. The results show that:(1)The horizontal well pattern divides the gas-cap and edge-water reservoirs into two parts,the gas-cap gas drive and the edge-water drive, and the recoverable reserves and development effects can be evaluated respectively.(2)The evaluation method reflects the relationships of the oil production contributed by gas/water drive with the production gas-oil ratio and water cut. The cumulative oil production contributed by gas drive and water drive can be calculated by using the production performance data.(3)Using the cumulative oil production contributed by gas drive and water drive and production performance data,combined with the gas drive and water drive characteristic curves,and development effect evaluation chart,the recoverable reserves and development effects of gas-cap and edge-water reservoirs can be evaluated,so as to point out the direction for next potential tapping of the oilfield.

Key words: gas drive, water drive, contribution to oil production, recoverable reserves forecast, development effect evaluation, potential tapping, gas-cap and edge-water reservoir, S31 reservoir, Jinzhou oilfield

中图分类号: 

  • TE341
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