断陷盆地陡坡带成藏条件分析——以梨树断陷西部陡坡带为例  

Analysis of Accumulation Conditions of Steep Slope Belt in Fault Basin——Taking the Western Steep Slope Belt of Lishu Fault Depression as an Example

作　　者：张飞燕 郭洪宇 王惠勇 ZHANG Feiyan;GUO Hongyu;WANG Huiyong(Research Institute of Petroleum Exploration and Development,SINOPEC,Beijing 102206,China;Research Institute of Exploration and Development,Dongbei Oil&Gas Company,SINOPEC,Changchun 130062,China)

机构地区：[1]中国石化石油勘探开发研究院,北京102206 [2]中石化东北油气分公司勘探开发研究院,长春130062

出　　处：《中国资源综合利用》2023年第8期93-95,共3页China Resources Comprehensive Utilization

摘　　要：梨树断陷位于松辽盆地东南隆起区南部,断陷层已发现多种油气藏类型。本文以松辽盆地内梨树断陷西部陡坡带为研究对象,分析油气地质条件。研究认为,营城组、沙河子组、火石岭组发育3套主力烃源岩,近岸水下扇含砾砂岩为主要储层,溶蚀作用是改善储层物性的最主要因素,研究区存在良好的疏导与保存条件,成藏匹配有利,已钻井也揭示良好的勘探前景。下一步可加大地震攻关力度,强化扇体精细刻画、期次划分,进一步分析油气藏富集规律,以期取得更大突破,带动伏龙泉、查干花等陡坡带的勘探。Lishu Fault Depression is located in the southern part of the southeastern uplift area of the Songliao Basin,and multiple types of oil and gas reservoirs have been discovered in the fault depression layer.Taking the western steep slope belt of the Lishu Fault Depression in the Songliao Basin as the research object,this paper analyzes the oil and gas geological conditions.Research suggests that three sets of main source rocks are developed in the Yingcheng Formation,Shahezi Formation,and Huoshiling Formation,with the nearshore subaqueous fan containing gravel sandstone as the main reservoir,and dissolution is the most important factor in improving reservoir physical properties,and the study area has good drainage and preservation conditions,favorable accumulation matching,and drilling has also revealed good exploration prospects.The next step is to increase efforts in earthquake research,strengthen the fine characterization and phase division of fan bodies,further analyze the enrichment patterns of oil and gas reservoirs,in order to achieve greater breakthroughs and drive the exploration of steep slope belts such as Fulongquan and Chaganhua.

关 键 词：梨树断陷 陡坡带 成藏条件 成藏模式 

分 类 号：P618.13[天文地球—矿床学]