摘要
位于苏里格气田中部的苏36-11井区气藏,构造特征显示不具备形成构造气藏圈闭条件,属于砂体控制地层圈闭类型。气藏主要气层为:下二叠统下石盒子组的盒8上亚段1、2砂层组,盒8下亚段1、2砂层组,山西组的山1段1、2、3砂层组,共7个砂层组14个砂体;气藏储层可精细描述为8种沉积微相:河底滞留沉积、心滩、河道充填、天然堤微相、决口扇/决口河道、泛滥盆地、泛滥沼泽和废弃河道,其中河道砂体及心滩的大小和数量是影响天然气富集的重要因素。气藏类型定性为低孔、低渗、低产非均质岩性气藏。
In the gas field located in middle of Wellblock Su 36-11 of Sulige Gas Field its structural characteristics show that there were no conditions of forming structural trap gas reservoirs it belonged to a sandbody controlled trap type.The reservoir was composed of the upper member 1 of Eh8 of Lower Permine,sandbody 2 Eh8 Submembers 1,2,Es1 sandbodies 1,2,3 of Shanxi Formation,including 7 sandbody formations and 14 sandbodies.The reservoir could be divided into 8 sedimentary microfecies,such as river-bed delayed sedimentary,mid-channel,channel filling,natural bank microfecies,crevasse splay and crevasse channel,flood basin,flood swamp and abandoned channel,of which the channel sandbody,the size and number of mid-channel are the major factors influencing the natural gas enrichment.The gas reservoir is a heterogeneous reservoir with low porosity and low permeability.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2009年第4期62-65,共4页
Journal of Oil and Gas Technology
关键词
气藏
地质特征
构造特征
储集层特征
岩性油气藏
苏里格气田
gas reservoir
geological characteristics
structural feature
reservoir character
lithologic reservoir
Sulige Gas Field
