苏里格气田东区天然气成藏规律及其控制因素  

Gas accumulation laws and its controlling factors at eastern Sulige gas field

作　　者：李进[1] 冯晓伟[1] 刘俊 何岩[1] 王娟[1] 魏炜[1] 

机构地区：[1]长江大学地球科学学院,湖北武汉430100 [2]苏里格气田指挥中心采气四厂作业一区,内蒙古乌审旗017300

出　　处：《石油化工应用》2014年第2期72-76,共5页Petrochemical Industry Application

摘　　要：研究鄂尔多斯盆地苏里格气田东区下古生界马家沟组马五，1～马五，小层气藏成藏规律。收集已有的测井资料、钻井资料、试气资料，通过现场的岩心观察与描述并在对地层精细划分的基础上，绘制了沉积相图、顶面构造图、孔渗分布、气藏剖面图，结合储层特征及成岩作用方面的认知，分析总结了马五，1～马五5小层气藏成藏规律及其成藏模式，认为马五1＋2小层气藏多发育于上部残丘与下部沟槽的中间部位，马五4^1多在鼻隆或鼻翼等岩溶作用强烈地带发育较好，马五5气藏在上覆地层厚度薄区域分布较好。The objective is to investigate the forming laws of Ma51-Ma55 submembers in lower paleozoic Majiagou formation located at eastern Sulige gas field in Ordos basin.The existing well logging data,drilling data, and gas testing data were collected.Then based on in-field core observation/description and fine stratigraphic division,we drew diagrams of sedimentary facies,top surface structure, porosity/permeability distribution,and gas reservoir profiles.Also with knowledge of strata characteristics and diagenesis, we analyzed and summarized the forming laws and modes of MaS1-Ma55 submembers. The results show that Ma51＋2 were devel- oped in between the upper monadnocks and lower grooves,Ma54^1 was well developed in areas with strong karstification such as nose uplift and nose wing.Ma55 was well distributed in ar- eas with thin overlying strata.

关 键 词：鄂尔多斯 下古生界 马家沟组 成藏规律 

分 类 号：P618.13[天文地球—矿床学]