摘要
为了给济阳坳陷沾化凹陷的油气勘探和开发提供依据和参考 ,对渤南油田义 3 7 7井 182块岩心 (主要是沙河街组二、三段的细砂岩、不等粒砂岩 )薄片的阴极发光特征进行观察和分析 ,根据陆源矿物和自生胶结物 (石英和长石等 )的发光特点划分胶结作用类型 ,结合普通显微镜下观察 ,按不同矿物的成分类型推断其母岩性质 ,对岩石的成岩作用分段加以研究 ,恢复当时的物源方向和成岩环境。对比阴极发光特征及母岩性质 ,判断物源来自东南方的孤岛凸起 ,搬运距离较近 ;义 3 7 7井岩心的结构成熟度和轻矿物成熟度均较低 ,推断物源区当时地势较高 ,剥蚀和埋藏都较快。图 5表 1参
To provide the useful scientific materials for the exploration and development of hydrocarbons in the Zhanhua Sag of Jiyang Depression, 182 slices of core have been observed and analyzed with cathodoluminescene method, which came from the Well Yi 3 7 7 in Bonan oil field in Jiyang Depression, and most of the cores are fine sandstones or inequigranular sandstones. The different luminous and cementation types are classified based on the luminous characters of continental minerals and authigenic cements, such as quartz and feldspar. With the help of the microscope, the characteristics of minerals were deduced and their sources were estimated based on different lithological types; the diagenesis of different segments was studied, and the diagenetic environments were restored. By comparing the characteristics of cathodoluminescence with the source minerals, the mineral source was thought to be from the Gudao arch in the southeast. On the basis of structural and light mineral maturation, the topography of source area was thought to be rather high, with strong denudation and fast burial.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
2003年第3期117-120,共4页
Petroleum Exploration and Development
基金
国家"十五"重大科技攻关项目 (2 0 0 1BA60 5A0 9)
中国石油化工股份有限公司"十五"科技攻关项目 (P0 10 13 )
关键词
阴极发光
母源物质
胶结作用
成岩环境
cathodoluminescence
source material
cementation
diagenetic environment
