Key technologies for enhancing the recovery of condensate gas reservoirs by gas injection-storage coordination

被引：0
|
作者：
He X. [1 ]
Huang Z. [2 ]
Lian L. [3 ]
Cheng R. [2 ]
Fu Y. [2 ]
Zhou W. [3 ]
机构：
[1] PetroChina Oil, Gas and New Energy Company, Beijing
[2] PetroChina Tarim Oilfield Company, Xinjiang, Korla
[3] PetroChina Research Institute of Petroleum Exploration and Development, Beijing
来源：
Natural Gas Industry | 2023年 / 43卷 / 01期
关键词：
Condensate gas reservoir; Gas gravity drainage; Injection-storage coordination; Recovery; Storage capacity; Tarim Basin; Three-dimensional injection-storage well pattern; Underground gas storage;
D O I：
10.3787/j.issn.1000-0976.2023.01.009
中图分类号：
学科分类号：
摘要：
The Yaha deep clastic condensate gas field in the Tarim Basin has been developed by cyclic gas injection for nearly 20 years, and the demand for enhancing gas recovery and peak shaving of gas storage is generated. Different from Dazhangtuo condensate gas reservoir and Hutubi condensate gas reservoir, the Yaha condensate gas field has the a high condensate content of 671 g/cu m. To realize maximum utilization of resources, it is required that development of condensate gas reservoir and gas injection-storage coordination be considered in the construction of Yaha gas storage. The technology of enhanced gas recovery (EGR) by gas injection-storage coordination based on the analysis of technical challenges to gas injection-storage coordination in building the gas storage in the Yaha condensate gas reservoir was proposed, and by implementing the technique of constructing the gas reservoir type storage. The technology of EGR by gas injection-storage coordination integrates the gas gravity-driven EGR technology and the technology of reservoir type underground storage, and it is implemented by gravity drainage coordinated with capacity expansion and high-speed injection-storage alternation storage capacity construction. The theory and method of gas storage and production under the multi-cycle injection-storage alternation pressure in porous flow of condensate reservoirs were developed, and the technology of evaluation on constructing the sealing and storage capacity by injection-storage coordination and the technology of gas injection-storage coordination EGR in condensate gas reservoirs are elaborated. According to the development principles of "gravity-assisted, pressure maintenance by dry gas, and considering gas enrichment", this technology will be operated for 30 years in two stages, the gas storage with a storage capacity of 165.6×108 m3 and a working gas capacity of 50.4×108 m3 will be constructed, the condensate oil recovery could be further increased by 10.6% compared with that of cyclic gas injection.
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页码：86 / 95
页数：9
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