新疆石油地质 ›› 2020, Vol. 41 ›› Issue (2): 180-187.doi: 10.7657/XJPG20200207

• 油藏工程 • 上一篇    下一篇

潜山油藏注气重力驱高精度数值模拟

王睿思1a, 曾庆桥1a, 黄埔1b, 廉黎明2, 李俊杰3, 程鹏4   

  1. 1. 中国石油 华北油田分公司 a.勘探开发研究院;b.经济技术研究院,河北 任丘 062552
    2. 中国石油 勘探开发研究院,北京 100083
    3. 中国石油 渤海钻探工程有限公司 油气井测试分公司,河北 廊坊 065000
    4. 中国石油 华北油田分公司 第四采油厂,河北 廊坊 065000
  • 收稿日期:2019-03-30 修回日期:2019-09-16 出版日期:2020-04-01 发布日期:2020-04-07
  • 作者简介:王睿思(1987-),男,河北围场人,高级工程师,硕士,油田开发,(Tel)0317-2727946(E-mail)yjy_wrs@petrochina.com.cn
  • 基金资助:
    中国石油科技重大专项(2017E-1507-1)

High-Resolution Numerical Simulation for Gas Injection Gravity Drainage in Buried-Hill Reservoirs

WANG Ruisi1a, ZENG Qingqiao1a, HUANG Pu1b, LIAN Liming2, LI Junjie3, CHENG Peng4   

  1. 1. PetroChina Huabei Oilfield Company, a.Research Institute of Exploration and Development; b.Economics and Technology Reaearch Institute, Renqiu, Hebei 062552, China
    2. Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China
    3. Well Testing Branch, Bohai Drilling Engineering Company Limited, PetroChina, Langfang, Hebei 065000, China
    4. No.4 Oil Production Plant, Huabei Oilfield Company, Langfang, Hebei 065000, China
  • Received:2019-03-30 Revised:2019-09-16 Online:2020-04-01 Published:2020-04-07

摘要:

雁翎油田雾迷山组潜山油藏为碳酸盐岩底水块状油藏,早期曾开展过井组注氮气现场试验,形成了44 m的油柱,目前油藏已进入可采储量采出程度高和含水率高的双高开发后期,亟需转变开发方式。以室内实验、早期现场井组试注经验、测井解释成果等为基础,通过优化地质模型,搭建数值模拟高性能云计算平台,优化双重介质潜山油藏数值模型,在网格精度为60 m×60 m×3 m,总网格数为97×10 4的模型基础上,开展了注气重力驱高精度数值模拟,编制了雁翎油田潜山油藏注气重力驱方案。方案预测提高采收率11.8%,最终采收率可达43.4%,效果显著,可为同类型油藏的开发方案设计提供借鉴。

关键词: 雁翎油田, 雾迷山组, 碳酸盐岩, 潜山油藏, 双重介质, 气驱效率, 高精度数值模拟, 重力驱

Abstract:

The buried-hill reservoir in the Wumishan formation of Yanling oilfield is a massive carbonate reservoir with bottom water, in which field tests of nitrogen injection had been carried out in the past and a 44 m-high oil column was formed. At present, the reservoir has entered the late development stage of high water cut and high recovery factor, and the development mode needs to be changed. Based on the data of laboratory experiments, early nitrogen injection field tests and well logging interpretation, the paper optimizes the geological model and establishes a high-performance cloud computing platform for numerical simulation. The simulation model for dual porosity buried-hill reservoirs is optimized, a high-resolution numerical simulation is carried out based on the model with grid precision of 60 m×60 m×3 m and the total grid number of 97×10 4, and a gas injection gravity drainage plan has been made for the buried-hill reservoir in Yanling oilfield. It is predicted in the plan that the recovery factor will be improved by 11.8%, the ultimate recovery factor will reach 43.4% and good results will be obtained, which can provide references for the development of similar reservoirs.

Key words: Yanling oilfield, Wumishan formation, carbonate rock, buried-hill reservoir, dual-porosity medium, gas drive efficiency, high-resolution numerical simulation, gravity drainage

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