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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:

期数:

2013年03期

页码:

20-23

栏目:

油气勘探

出版日期:

2013-09-25

文章信息/Info

Title:

Reservoir characteristics and main controlling factors of Shan1 member of block S6 in Sulige Gasfield

作者:

杨 朋¹; 王筱晔²; 杜 昊³

1.成都理工大学“油气藏地质及开发工程”国家重点实验室,四川 成都 610059; 2.中国石油长庆油田分公司第五采油厂,陕西 榆林 719000; 3.中国石油长庆油田分公司第一采油厂,陕西 延安 716000

Author(s):

Yang Peng¹; Wang Xiaoye²; Du Hao³

1.State Key Laboratory of Oil and Gas Reservoir Geology and Exploration,Chengdu University of Technology,Chengdu,Sichuan 610059; 2.No.5 Oil Production Plant of Changqing Oilfield Company,PetroChina,Yulin,Shanxi,719000; 3.No.1 Oil Production Plant of Changqing Oilfield Company,PetroChina,Yan'an,Shanxi 716000

关键词:

S6井区 山1段 储层 成岩作用 主控因素

Keywords:

block S6;  Shan1 member;  reservoir;  diagenesis;  main controlling factors

分类号:

TE122.23

文献标志码:

A

摘要:

下二叠统山西组1段(简称山1段)是苏里格气田S6井区的主力产气层之一,由于该储层经历了长期的压实、胶结等致密化成岩作用改造,原生孔隙几乎消失,储集物性较差,属低孔特低渗型储层。利用岩心、岩石薄片及其它常规化验资料,对山1段储层岩石学特征、孔隙结构及孔隙类型等进行深入研究,并分析了影响储层性能的主控因素。结果发现,影响山1段储层物性的主要因素为沉积环境、碎屑以及成岩作用的改造,这些因素共同改善或破坏了山1段储层的物性。

Abstract:

The first member of the lower Permian Shanxi formation(short for Shan1 member)is one of major pay zones in block S6 of Sulige Gasfield.After the long-term modification of compaction and cementation,primary pores of the reservoir almost vanish.The reservoir belongs to low-porosity and low-permeability reservoirs due to poor physical properties.Using data of core,rock slice,other routine tests,the analytical research was made on petrologic features,pore structures,pore types,and so on.Meanwhile,we analyzed main control factors influencing the reservoir properties.Results indicate that the main controlling factors of Shan1 member reservoir include sedimentary environment,clastics and diagenesis,which together improved or destroyed the physical properties of Shan1 member reservoir.