川东北龙会场—铁山地区长兴组生物礁储层地震地质特征及气藏分布规律  

Seismic geological characteristics and gas reservoir distribution of Changxing Formation biological bioreef reservoir in Longhuichang-Tieshan area, northeastern Sichuan Basin

作　　者：赵虎[1,2] 易俊成 张航[3] 赵容容[4] 张洁伟 戴菁芸 吕乐 安虹伊 Hu ZHAO;Juncheng YI;Hang ZHANG;Rongrong ZHAO;Jiewei ZHANG;Jingyun DAI;Le LÜ;Hongyi AN(Sichuan Province University Key Laboratory of Natural Gas Geology,SWPU,Chengdu 610500,China;School of Geoscience and Technology,Southwest Petroleum University,Chengdu 610500,China;Northeastern Sichuan Oil and Gas District,Southwest Oil&Gasfield Company,PetroChina,Dazhou 635000,China;Exploration Division of PetroChina Southwest Oil&Gasfield Company,Chengdu 610041,China)

机构地区：[1]西南石油大学天然气地质四川省重点实验室,四川成都610500 [2]西南石油大学地球科学与技术学院,四川成都610500 [3]中国石油西南油气田分公司川东北气矿,四川达州635000 [4]中国石油西南油气田分公司勘探事业部,四川成都610041

出　　处：《天然气地球科学》2024年第1期1-12,共12页Natural Gas Geoscience

基　　金：中国石油—西南石油大学创新联合体科技合作项目(编号:2020CX010201);国家自然基金青年科学基金(编号:41704134)联合资助~。

摘　　要：针对川东北龙会场—铁山地区长兴组生物礁储层发育范围认识不清、气藏关系认识模糊等问题,综合利用钻、测井资料,总结了生物礁储层的地震地质特征,研究了储层参数、构造位置、走滑断裂等对生物礁气藏发育的影响。结果表明:区内生物礁储层纵向上发育在长兴组的中上部,横向上发育在台缘带及台内局部高地貌区域,其中龙会场构造西翼以及铁山南构造西南侧为潜在的勘探有利区。通过对比分析研究区生物礁气藏关系,厘清了储层参数、构造位置、走滑断裂等因素对生物礁气藏发育的控制作用,发现了上述因素对气藏发育均无明显的强线性关系而是综合作用的结果,分析建立了研究区有利气藏富集模式和破坏模式,为川东北地区长兴组生物礁气藏进一步勘探提供了技术支撑。In view of the unclear understanding of the development range of the Changxing Formation bioreef reservoir in the Longhuichang-Tieshan area of northeastern Sichuan Basin and the vague understanding of the relationship between gas reservoirs,the seismic geological characteristics of bioreef reservoirs were summarized by utilizing the drilling and logging data,and studying the effects of reservoir parameters,structural location and strike-slip faults on the development of bioreef gas reservoirs.The research shows that the bioreef reservoirs in the area are vertically developed in the middle and upper parts of the Changxing Formation,and horizontally developed in the platform margin and the local high landform area in the platform.The west wing of the Longhuichang structure and the southwest side of the Tieshannan structure are potential exploration favorable areas.By comparing and analyzing the relationship between bioreef gas reservoirs in the study area,the controlling effects of reservoir parameters,structural location,strike-slip faults and other factors on the development of bioreef gas reservoirs are clarified.It is found that the above factors have no obvious strong linear relationship but a comprehensive effect on the development of gas reservoirs.The enrichment mode and failure mode of favorable gas reservoirs in the study area are analyzed and established,which provides technical support for further exploration of Changxing Formation bioreef gas reservoirs in northeastern Sichuan Basin.

关 键 词：川东北地区 长兴组 生物礁储层 气藏关系分析 

分 类 号：TE122.23[石油与天然气工程—油气勘探]