摘要
石炭系—二叠系是华北地区重要的含煤层系,发育煤层气、煤系页岩气、煤系致密砂岩气、煤成油等多种油气资源,大量的研究和勘探结果表明煤系地层具有良好的勘探前景。与鄂尔多斯盆地相比,济阳-临清地区石炭系—二叠系煤系地层勘探和研究程度相对较低,在系统总结华北地区煤系地层油气资源类型与富集条件研究现状的基础上,对比分析济阳-临清地区与鄂尔多斯盆地煤系地层的成藏条件,提出济阳-临清地区煤系地层勘探方向。研究结果表明:华北地区煤系地层主要为太原组和山西组,形成于陆表海-三角洲沉积环境中,旋回性强且发育共生的煤层气藏、煤系页岩气藏和煤系致密砂岩气藏。高有机碳含量的煤岩、碳质泥岩、暗色泥岩是形成煤系地层油气资源的物质基础,富氢煤系烃源岩发育区具有一定的煤成油藏勘探潜力,保存条件是煤层气、煤系页岩气富集的关键要素,沉积与成岩作用导致的高孔渗带是煤系致密砂岩气的甜点区。济阳-临清地区具有良好的煤系气和一定的煤成油勘探前景,将一套岩性组合作为勘探对象开展系统评价是提升煤系地层勘探效益的重要技术途径,惠民凹陷与东营凹陷南坡、车镇凹陷西部和孤北潜山太原组是有利的勘探目标。
The Carboniferous and Permian are important coal-bearing strata in North China,which develop various oil and gas re‐sources such as coalbed methane,coal-bearing shale gas,tight coal-bearing sandstone gas,and coal-formed oil.Massive research and exploration results have shown that coal-bearing strata have good exploration prospects.Compared with those of the Ordos Ba‐sin,the exploration and research levels of the Carboniferous and Permian coal-bearing strata in Jiyang-Linqing area are relatively lower.The reservoir formation conditions of coal-bearing strata in Jiyang-Linqing area and Ordos Basin were comparatively ana‐lyzed,and the exploration directions for coal-bearing strata in Jiyang-Linqing area were proposed based on systematically summa‐rizing the research progress of oil and gas resource types and enrichment conditions in coal-bearing strata in North China.The re‐search results show that the coal-bearing strata in North China are mainly composed of Taiyuan Formation and Shanxi Formation,formed in the sedimentary environment of the epeiric sea delta.They have strong cyclicity and are developed into symbiotic coalbed methane reservoirs,coal-bearing shale gas reservoirs,and tight coal-bearing sandstone gas reservoirs.Coal,carbonaceous mud‐stones,and dark mudstones with high organic carbon content are the material basis for the formation of coal-bearing oil and gas re‐sources,and coal-bearing source rock development areas with rich hydrogen have certain exploration potential for coal-formed oil.Preservation conditions are key factors for the enrichment of coalbed methane and coal-bearing shale gas.The high porosity and per‐meability zones caused by sedimentation and diagenesis are the sweet spot areas for tight coal-bearing sandstone gas.There are good exploration prospects for coal-bearing gas and coal-formed oil in Jiyang-Linqing area.Conducting a systematic evaluation by explor‐ing a set of lithological combinations is an essential technical approach to improving the exploration efficienc
作者
张鹏飞
张仲达
邱贻博
高阳
刘辰宇
赵兰全
ZHANG Pengfei;ZHANG Zhongda;QIU Yibo;GAO Yang;LIU Chenyu;ZHAO Lanquan(Western Oil and Gas Exploration Project Department,Shengli Oilfield Company,SINOPEC,Dongying City,Shandong Province,257000,China;Exploration and Development Research Institute,Shengli Oilfield Company,SINOPEC,Dongying City,Shandong Province,257015,China;Postdoctoral Work Station of Shengli Oilfield,SINOPEC,Dongying City,Shandong Province,257000,China)
出处
《油气地质与采收率》
CAS
CSCD
北大核心
2024年第4期96-111,共16页
Petroleum Geology and Recovery Efficiency
基金
中国石化油气勘探开发重大项目“东部富油气凹陷及周缘资源评价”(P23234)。
关键词
煤系地层
煤系三气
富集条件
济阳-临清地区
华北地区
coal-bearing strata
three types of coal-bearing gas
enrichment conditions
Jiyang-Linqing area
North China
