富县油田姜家川地区长_8油层组岩性油藏勘探  

Exploration of Lithologic Reservoirs in Chang_8 Oil-bearing Formation of Jiangjiachuan Area in the Fuxian Oilfield

作　　者：马芳侠 李晓路 张庆 陈义国 段昕婷[1] Ma Fangxia;Li Xiaolu;Zhang Qing;Chen Yiguo;Duan Xinting(Shaanxi Yanchang Petroleum(Group),Ltd.,Xi’an,Shaanxi 710075,China)

机构地区：[1]陕西延长石油(集团)有限责任公司,陕西西安710075

出　　处：《特种油气藏》2018年第4期18-23,共6页Special Oil & Gas Reservoirs

基　　金：国家自然科学基金"季节性河流-三角洲超临界流沉积作用机制及其气候响应关系"(41602117);中央基本科研业务费专项资金项目"陆相断陷湖盆源汇系统分析及滨岸带沉积作用响应机理"(2-9-2017-295)

摘　　要：为了探究姜家川地区长_8油层组油气富集的控制因素,明确岩性油藏的勘探前景,在前人研究成果的基础上,利用录井、测井等资料,对长_8油层组的沉积特征、储集层特征、油藏特征进行综合分析。结果表明,长_8岩性油藏主要受沉积微相分布、烃源岩供给以及成岩作用的控制。同时建立了"夹心式"充注、优势砂体储集的油气成藏模式,并结合近年来的勘探成果预测出5个Ⅰ类有利区和2个Ⅱ类有利区,进而证实了姜家川地区长_8岩性油藏具有良好的勘探前景。研究结果对研究区的下部勘探具有一定的指导意义。To identify controlling factors for hydrocarbon enrichments in Chang 8 oil-bearing formation of the Jiangjiachuan Area and to highlight prospects of exploration for lithologic reservoirs,previous research results,together with well logging and logging data to conduct comprehensive analyses for features of sedimentation,reservoir formation and reservoirs in the Chang 8 oil-bearing formation.Research results show,Chang 8 lithologic reservoirs are subject to control of distribution of sedimentary micro-facies,hydrocarbon source rock supplies and diagenesis.At the same time,reservoir-forming model with“sandwiched”charging and prevailing sandstone reservoir formations has been established.With consideration to exploration achievements made in the past few years,5 Class I and 2 Class II potential zones have been identified.These findings show Chang 8 lithologic reservoirs in the Jiangjiachuan Area have bright prospects in exploration.Relevant researches may provide necessary guidance for future exploration operations within the concerned area.

关 键 词：岩性油藏 成藏模式 长8油层组 姜家川地区 富县油田 

分 类 号：TE122.1[石油与天然气工程—油气勘探]