Mid-Late Development of Reservoirs With Narrow Oil Ring, Gas Cap and Edge Water

新疆石油地质 ›› 2022, Vol. 43 ›› Issue (zk(English)): 151-155.

Mid-Late Development of Reservoirs With Narrow Oil Ring, Gas Cap and Edge Water

YUE Baolin, ZHU Xiaolin, LIU Bin, CHEN Cunliang, WANG Shuanglong

Tianjin Branch, CNOOC (China) Limited, Tianjin 300459, China

收稿日期:2021-06-03 修回日期:2021-07-09 出版日期:2023-01-01 发布日期:2023-07-28

Mid-Late Development of Reservoirs With Narrow Oil Ring, Gas Cap and Edge Water

YUE Baolin, ZHU Xiaolin, LIU Bin, CHEN Cunliang, WANG Shuanglong

Tianjin Branch, CNOOC (China) Limited, Tianjin 300459, China

Received:2021-06-03 Revised:2021-07-09 Online:2023-01-01 Published:2023-07-28
About author:YUE Baolin, E-mail: 282565118@qq.comm

摘要/Abstract

摘要： The X sandstone reservoir in Jinzhou has a large gas cap, narrow oil ring and strong edge water. After entering its middle to late development stage, the reservoir faces the problems such as rapid formation pressure drop, severe gas channeling and difficult potential tapping, so it is urgent to optimize the development methods. Following the principles of geometric similarity, physical property similarity and production performance similarity, we optimized the profile model of the reservoir, and validated the feasibility of a barrier water injection scheme through 2D visualized physical simulation experiments. Then we proposed a barrier water injection scheme with horizontal wells in a parallel well pattern by combining with numerical simulation, and demonstrated the technical requirements for implementing the scheme. Considering the reservoir complexity, development risks, severe gas channeling, uneven vertical displacement and the ultimate goal for significant stimulation effects, a well group was selected for pilot test to improve the understanding of barrier water injection performance. The result provides a reference to the development of similar reservoirs.

关键词: gas cap, edge water, narrow oil ring, barrier water injection, water barrier well, physical simulation experiment, gas channel ing, enhanced oil recovery

Abstract: The X sandstone reservoir in Jinzhou has a large gas cap, narrow oil ring and strong edge water. After entering its middle to late development stage, the reservoir faces the problems such as rapid formation pressure drop, severe gas channeling and difficult potential tapping, so it is urgent to optimize the development methods. Following the principles of geometric similarity, physical property similarity and production performance similarity, we optimized the profile model of the reservoir, and validated the feasibility of a barrier water injection scheme through 2D visualized physical simulation experiments. Then we proposed a barrier water injection scheme with horizontal wells in a parallel well pattern by combining with numerical simulation, and demonstrated the technical requirements for implementing the scheme. Considering the reservoir complexity, development risks, severe gas channeling, uneven vertical displacement and the ultimate goal for significant stimulation effects, a well group was selected for pilot test to improve the understanding of barrier water injection performance. The result provides a reference to the development of similar reservoirs.

Key words: gas cap, edge water, narrow oil ring, barrier water injection, water barrier well, physical simulation experiment, gas channel ing, enhanced oil recovery

YUE Baolin, ZHU Xiaolin, LIU Bin, CHEN Cunliang, WANG Shuanglong. Mid-Late Development of Reservoirs With Narrow Oil Ring, Gas Cap and Edge Water[J]. 新疆石油地质, 2022, 43(zk(English)): 151-155.

YUE Baolin, ZHU Xiaolin, LIU Bin, CHEN Cunliang, WANG Shuanglong. Mid-Late Development of Reservoirs With Narrow Oil Ring, Gas Cap and Edge Water[J]. Xinjiang Petroleum Geology, 2022, 43(zk(English)): 151-155.

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Mid-Late Development of Reservoirs With Narrow Oil Ring, Gas Cap and Edge Water

Mid-Late Development of Reservoirs With Narrow Oil Ring, Gas Cap and Edge Water

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