岩性油气藏 ›› 2022, Vol. 34 ›› Issue (1): 154–162.doi: 10.12108/yxyqc.20220116

• 油气田开发 • 上一篇    下一篇

断溶体油气藏流动物质平衡方法

李冬梅1, 李会会1, 朱苏阳2, 李涛3   

  1. 1. 中国石化西北油田分公司完井测试管理中心, 新疆轮台 841600;
    2. 油气藏地质及开发工程国家重点实验室(西南石油大学), 成都 610599;
    3. 中国石化西北油田分公司油气开发管理部, 乌鲁木齐 830001
  • 收稿日期:2021-04-25 修回日期:2021-07-18 发布日期:2022-01-21
  • 通讯作者: 李会会（1987—），女，硕士，工程师，主要从事碳酸盐岩缝洞型油藏的完井测试与综合研究工作。Email：lihh.xbsj@sinopec.com。 E-mail:lihh.xbsj@sinopec.com
  • 作者简介:李冬梅(1973-),女,博士,高级工程师,主要从事碳酸盐岩缝洞型油藏的完井测试与综合研究工作。地址:(841600)新疆巴州轮台县轮南镇采油三队完井测试管理中心。Email:lidongmei.xbsj@sinopec.com
  • 基金资助:
    国家自然科学基金“垂直疏水性圆管湍流场中多液滴形成机制及其携带模型研究”（编号：51974263）资助

Modified flowing material balance method for fault-karst reservoirs

LI Dongmei1, LI Huihui1, ZHU Suyang2, LI Tao3   

  1. 1. Management Center of Well Completion and Test, Sinopec Northwest Oilfield Company, Luntai 841600, Xinjiang, China;
    2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610599, China;
    3. Department of Oil and Gas Development Management, Sinopec Northwest Oilfield Company, Urumqi 830001, China
  • Received:2021-04-25 Revised:2021-07-18 Published:2022-01-21

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摘要： 断溶体油藏由于“竖板”状的特珠形态，需要针对其流动特征，建立具有针对性的流动物质平衡方法。采用图示法分析了断溶体油藏油气流动模式，根据不同的流动特征以及对应的产能方程计算了油藏的渗透率，在此基础上建立了断溶体油藏的流动物质平衡新方法，并通过数值模型，验证了新方法的适用性。结果表明：断溶体油藏直井中的流动模式为线性流，与常规油藏水平井的流动特征相似，而断溶体油藏水平井中的流动模式为径向流，类似于常规油藏直井的流动特征；该方法和物质平衡方法得到的动态储量误差小于5%；新方法对储层渗透率的计算更接近实际井况。该研究对断溶体油藏动态储量核算具有指导意义。

关键词: 断溶体油藏, 流动物质平衡, 拟稳态流动, 井底流压, 动态储量

Abstract: Due to the special shape of "vertical plate" in fault-karst reservoirs,it is necessary to establish a new flowing material balance(FMB) method according to its flow characteristics. The oil and gas flow model of faultkarst reservoirs was analyzed by graphic approach,and the permeability of the reservoir was calculated according to different flow characteristics and corresponding productivity equations. On this basis,a new FMB method for fault-karst reservoirs was established,and the applicability of the new method was verified by numerical model. The results show that the flow pattern of vertical wells in fault-karst reservoirs is linear flow,which is similar to that of horizontal wells in conventional reservoirs. While the flow pattern of horizontal wells in fault-karst reservoirs is radial flow,which is similar to that of vertical wells in conventional reservoirs. The dynamic reserve difference between the new method and the MBE method is less than 5%. The calculation of reservoir permeability by the new method is closer to the actual well conditions. This study provides a guideline for the dynamic reserve accounting of fault-karst reservoirs.

Key words: fault-karst reservoir, flowing material balance, pseudo steady state flow, bottom hole flowing pres sure, dynamic reserve

中图分类号: 

  • TE349
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