火山岩气藏勘探开发理论技术与实践——以松南断陷白垩系火山岩为例

doi:10.13809/j.cnki.cn32-1825/te.2024.02.002

摘要/Abstract

摘要：

近20年来，中国石化东北油气分公司在松辽盆地南部的勘探进一步证明，盆地火山岩是寻找油气藏的新靶区，具有广阔的前景。东北油气分公司根据盆地勘探实践，总结了以主成藏期为关键点的“生烃灶-成藏期古构造-断盖保存-有效储层”联动演化的断陷层四元耦合控藏模式，推动了松南地区长岭断陷火石岭组大规模火山岩气藏的发现。火山岩勘探方向从营城组拓展到更深层的火石岭组，勘探目标从酸性火山岩拓展到中基性火山岩，从水上喷发到水下喷发。采用气藏精细描述技术，建模数模一体化及地质工程一体化技术，在松南断陷多口井取得产能突破，实现火山岩气藏高效开发和规模上产。

关键词: 松南断陷, 火山岩气藏, 成藏模式, 气藏精细描述, 建模数模一体化, 地质工程一体化

Abstract:

In the past two decades, Sinopec Northeast Oil & Gas Company has made significant strides in exploring the southern Songliao Basin, revealing that the basin's volcanic rocks present a new and promising avenue for hydrocarbon exploration. According to the exploration practice of the basin, the company has developed a comprehensive four-component coupling reservoir control model specific to fault depressions. This model emphasizes the interconnected evolution of key elements such as hydrocarbon generating foci, reservoir formation periods, paleostructure, fault cap preservation, and effective reservoirs, with a particular focus on the main accumulation period. This strategic approach led to the significant discovery of a large-scale volcanic gas reservoir within the Huoshiling Formation in the Changling fault depression, located in the Songnan area. Consequently, the exploration focus has broadened from the Yingcheng Formation to the Huoshiling Formation, diversifying the exploration targets from acidic volcanic rocks to intermediate-basic volcanic rocks, and extending from subaerial to submarine eruptions. By using the technique of fine gas reservoir description, the integration of modeling, numerical modeling and geological engineering, the productivity breakthrough has been achieved in several wells in Songnan fault depression, and the efficient development and large-scale production of volcanic gas reservoir has been realized.

Key words: Songnan fault depression, volcanic gas reservoir, reservoir forming model, detailed description of gas reservoir, integration of geological modeling and numerical simulation, integration of geology and engineering

中图分类号:

TE122

马代鑫,任宪军,赵密福,韩娇艳,刘玉虎. 火山岩气藏勘探开发理论技术与实践——以松南断陷白垩系火山岩为例[J]. 油气藏评价与开发, 2024, 14(2): 167-175.

MA Daixin,REN Xianjun,ZHAO Mifu,HAN Jiaoyan,LIU Yuhu. Theories, technologies and practices of exploration and development of volcanic gas reservoirs: A case study of Cretaceous volcanic rocks in Songnan fault depression[J]. Petroleum Reservoir Evaluation and Development, 2024, 14(2): 167-175.

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