油源断裂输导能力对油气分布的控制作用  

Controlling Effect of Conducting Capacity of Oil Source Faults on Oil and Gas Distribution

作　　者：刘峻桥 张桐[2] 孙同文[1] 孙永河[1] 王永统 

机构地区：[1]东北石油大学,黑龙江大庆163318 [2]中国石油大庆油田有限责任公司,黑龙江大庆163712 [3]中国石油长城钻探工程有限公司,辽宁盘锦124010

出　　处：《特种油气藏》2017年第5期27-31,共5页Special Oil & Gas Reservoirs

基　　金：国家自然科学基金"张性断裂交汇部位油气运聚机理及有利类型预测"(41602164);国家科技重大专项"渤海湾盆地北部油气富集规律与油气增储领域研究"(2016ZX05006-005);东北石油大学研究生创新科研项目"张性环境断层-位移褶皱类型及其识别方法"(YJSCX2016-001NEPU)

摘　　要：为了明确断裂输导体系在油气成藏中的作用,针对不同油源断裂和同一油源断裂不同部位对油气垂向输导能力的差异性,采用理论研究与油田生产实际相结合的方法,对油源断裂垂向输导能力影响因素及对油气分布的控制作用进行了研究。结果表明:油源断裂输导能力受盖层封闭能力、油气运移动力、烃源岩供烃能力以及优势输导通道等因素控制,其对油气分布的控制作用主要表现在4个方面:盖层封闭能力控制油源断裂垂向输导油气分布层位;油源断裂垂向输导动力控制油气垂向运聚规模;充足的油气来源为油源断裂垂向输导油气提供物质基础;油源断裂凸面脊控制油气优势输导通道发育部位。该研究可为油源断裂发育区的油气勘探提供理论指导。For confirming the effect of fauh conducting systems on oil and gas accumulation, aiming at the differ- ences of the vertical conducting capacity of different oil-source faults and different positions of the same oil-source faults, we adopted the method of combining theoretical t^searches and actual production of oilfields to study the af- fecting factors for the vertical corulucting capacity of oil-source faults and their controlling effects on oil and gas dis- tribution. The study results indicate： （ 1 ） the conducting capacity of oil-source faults is controlled by many factors, such as caprock sealing capacity, driving force of hydrocarbon migration, hydrocarbon supply capacity of source rock, and predominant conducting pathways; （ 2） their controlling effects on oil and gas distribution mainly include the following four aspects： （ a} the caprock sealing capacity controls the distribution layers of the vertically conduc- ted oil and gas of the oil-source fauhs; （b） the vertical conducting capacity of the oil-source faults controls verti- cal hydrocarbon migration and accumulation scales ; （e） sufficient oil and gas sources provide material base fur the vertically conducted oil and gas of the oil-source faults; （d） the convex ridges of the oil-source faults control the development positions of the predominant pathways of hydrocarbon migration. This study can provide theoretical guidance for oil and gas exploration in the areas with well-developed oil-source faults.

关 键 词：油源断裂 输导能力 盖层 运移动力 烃源岩供烃能力 优势输导通道 南堡凹陷 

分 类 号：TE122.2[石油与天然气工程—油气勘探]