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中国深层、超深层气藏开发关键技术与对策建议

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中国在深层、超深层油气勘探开发方面已经取得了重要进展,中国石油天然气集团有限公司(以下简称中国石油)已在塔里木盆地和四川盆地建成两大深层、超深层天然气生产基地,但目前仍存在制约此类气藏高效开发的核心问题.为促进深层、超深层气藏实现高效开发,回顾了中国石油在不同类型深层、超深层典型气藏的开发实践历程,系统梳理了气藏开发过程中面临的问题与挑战,总结了气藏开发的关键技术,最后提出了深层、超深层气藏开发对策与建议.研究结果表明:①形成了深层、超深层岩溶型碳酸盐岩气藏小洞微缝储层量化表征技术和裂缝—孔隙型碎屑岩气藏多尺度裂缝动静态描述技术,实现了储层孔隙结构特征参数的量化表征和不同尺度裂缝的精细刻画与空间预测,提高了开发井的成功率,确保了储量高效动用;②形成了开发单元划分与水侵通道刻画技术和裂缝非均匀水侵动态评价技术,实现了不同开发阶段水侵动态评价和水侵状况准确预报,为不同开发单元制订差异化的开发技术政策奠定了基础;③建立了岩溶型碳酸盐岩气藏全生命周期递进式控水开发模式和裂缝—孔隙型碎屑岩气藏控排水协同提高采收率技术,实现了气藏均衡开发,整体提高了气藏采收率.结论认为,深层、超深层气藏地质、工程环境复杂,储层非均质性强,需进一步加强气藏前期评价、布井模式攻关、不同区块水侵规律等方面研究,且需做好气田群协同开发的整体研究.
Key technologies and countermeasures for deep and ultra-deep gas reservoir development in China
In China,great progress has been made in deep and ultra-deep oil and gas exploration and development,and China National Petroleum Corporation(CNPC)has built two deep and ultra-deep oil and gas production bases in the Tarim Basin and the Sichuan Basin,but there are still some core issues restricting the efficient development of deep and ultra-deep gas reservoirs.In order to promote the efficient development of deep and ultra deep gas reservoirs,this paper reviews CNPC's practices in developing different types of typical deep and ultra-deep gas reservoirs,and sorts out the problems and challenges in the process of gas reservoir development.Then,the key technologies for gas reservoir development are summarized.Finally,some countermeasures to develop deep and ultra-deep gas reservoirs are proposed.And the following research results are obtained.First,the quantitative characterization technique for small caves and micro fractures in deep and ultra deep karst carbonate gas reservoirs and the multi-scale fracture description technique with dynamic and static data for fractured-porous clastic rock gas reservoirs make possible the quantitative characterization of pore structure characteristic parameters and the fine description and spatial prediction of fractures in different scales,improve the success rate of development wells,and ensure the efficient utilization of reserves.Second,the technique for dividing development units and characterizing water intrusion channels and the technique for evaluating non-uniform water intrusion behaviors in fractures make possible the behavior evaluation and accurate prediction of water intrusion in different development stages,and lay a foundation for formulating differentiated development technological policies for different development units.Third,the progressive water-controlling development model for the entire life cycle of karst carbonate gas reservoirs and the water control and drainage-EOR technique for fractured-porous clastic rock gas reservoirs achieve balanced gas reservoir development and improve gas reservoir recovery overall.In conclusion,deep and ultra deep gas reservoirs have complex geological and engineering environments and strong reservoir heterogeneity.Therefore,it is necessary to further strengthen the pre-evaluation of gas reservoirs and the researches on well patterns and water invasion laws in different blocks,and carry out comprehensive research on the collaborative development of gas field groups.

Deep and ultra-deep strataKarst carbonate gas reservoirsTerrigenous clastic gas reservoirsDevelopment practicesKey technologiesCountermeasures and suggestions

贾爱林、闫海军、唐海发、王忠楠、刘群明

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中国石油勘探开发研究院

深层 超深层 岩溶型碳酸盐岩气藏 陆相碎屑岩气藏 开发实践 关键技术 对策建议

中国石油天然气股份有限公司科技项目中国石油集团公司攻关性应用性科技专项中国石油集团公司攻关性应用性科技专项

2023YQX1032023ZZ162023ZZ25

2024

10.3787/j.issn.1000-0976.2024.01.011

天然气工业
四川石油管理局 中国石油西南油气田公司 中国石油川庆钻探工程公司

天然气工业

CSTPCD北大核心EI
影响因子：2.298
ISSN：1000-0976
年,卷(期)：2024.44(1)
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