文南油田沙三中亚段2-4砂组四性关系研究  

Research on Four Property Relationship of the 2-4 Sand Groups of the Middle-Sha-3 Formation in Wennan Oilfield

作　　者：吴成晨 胡望水[1] 刘杨[2] 王闯[1] 陈佩佩[1] 余振宇[1] 

机构地区：[1]长江大学油气资源与勘探技术教育部重点实验室,武汉430100 [2]中国石油吉林油田分公司勘探开发研究院

出　　处：《科学技术与工程》2016年第25期233-237,共5页Science Technology and Engineering

基　　金：国家自然科学基金项目(40872099)资助

摘　　要：文南油田沙三中亚段处于弱氧化-弱还原环境的三角洲前缘、滨浅湖亚相和还原环境的半深湖、深湖亚相,储层以岩屑长石砂岩和长石砂岩为主。储层物性和岩性的差异影响了油气的富集程度和分布规律。控制文南油田沙三中亚段2-4砂组物性的主要因素是碎屑组成、结构和含量以及胶结物成分和含量;不同岩性储层的含油性是有差异的,含油性最好的岩性是长石细砂岩和粉砂质细砂岩。通过测井、岩心、分析化验等资料,分析文南油田沙三中亚段2-4砂组的岩性、物性、电性以及含油性,归纳他们之间的相互关系,拟合出相应的孔隙度、渗透率和含油饱和度的解释图版,并根据试油资料与储层物性、电性参数绘制他们的交会图,确定油层、干层、水层解释标准,为指导该区的油气勘探提供依据。The Middle-Sha-3 Formation in Wennan Oilfield is in weak oxidation-reduction environment of delta front,shore and shallow lake sedimentary system and in reducing environment of half deep lake and deep lake facies sedimentary system. Reservoir lithology is mainly composed of lithic arkose and arkose. The difference of lithology and physical property influence the oil / gas accumulation level and regularity of distribution. The clastic composition and content and cement composition and contend are the main factors of controlling physical property of oil reservoir. Oiliness of different lithology is different,and oiliness of feldspathic fine-grained sandstone and silty sandstone is best. The lithology,physical property,electrical property and oiliness of the 2-4 Sand Groups of the Middle-Sha-3 Formation in Wennan Oilfield were analyzed by data of drill core,well logging and analysis testing. Their inner relation are received,and the good interpretation models of porosity,permeability,and oil saturation were established,the cross plot of oil testing,physical property and electrical parameters was made and the quantitative interpretation standard of oil reservoir for the 2-4 Sand Groups of the Middle-Sha-3 Formation in Wennan Oilfield was determined to divide oil layer,acquifer and dry layer. Therefore it provides the reliable basis for the development and evaluation of oil and gas in this area.

关 键 词：沙三中亚段2-4砂组 解释图版 含油性 四性关系 解释标准 

分 类 号：TE122.112[石油与天然气工程—油气勘探]