长岭1号气田登娄库组储层特征与分类评价  

RESERVOIR CHARACTERISTICS AND EVALUATION OF DENGLOUKU FORMATION IN CHANGLING-1 GASFIELD

作　　者：单衍胜[1] 张金川[1] 康保平[2] 唐玄[1] 王龙[1] 

机构地区：[1]中国地质大学能源学院,北京100083 [2]中国石化西南油气分公司勘探开发研究院,四川成都610081

出　　处：《大庆石油地质与开发》2012年第2期26-31,共6页Petroleum Geology & Oilfield Development in Daqing

基　　金：国家重点基础研究发展规划“973”项目（2005CB422106）资助.

摘　　要：长岭1号气田位于松辽盆地南部的长岭断陷中部凸起哈尔金构造带上，从储层岩石学、储集空间类型、孔隙结构、储层物性等方面对长岭1号气田登娄库组储层特征进行分析，并采用模糊聚类方法对储层进行了分类，综合应用多属性模拟及建模技术确定了各类储层的分布。研究表明，储集层岩性主要为长石岩屑砂岩和岩屑长石砂岩，储层结构成熟度中等，成分成熟度低，不稳定矿物含量高；储层储集空间类型复杂多样，次生粒间溶孔、粒内溶孔为主要的储集空间，储集空间小、连通性差、非均质性强，属于低孔、低渗储层。储层分类评价结果表明，以长深1—1等5口井为界的工区中部哈尔金构造高点区，Ⅰ类和Ⅱ类储层集中发育，储层叠合厚度大，是将来勘探开发的有利区域。Changling-1 Gasfield is located in Harjin Structural Belt of the middle uplift of Changling Fault Depres- sion of South Songliao Basin. The reservoir characteristics of Denglouku Formation are analyzed from the aspects of the petrology, AS type, pore textures, physical properties and so on in this gasfield. In addition, the reservoir are classifed by means of fuzzy clustering method, and the distributions of each reservoir are determined with the help of comprehensive adoption of multi-attribute matching and modeling method. The study shows that reservoir litholog- ie types are mainly characterized by feldspathie litharenite and lithie arkose with high content of unstable minerals, medium-maturity of textures and low-maturity of compositions ; types of AS are complex and diverse and mainly fea- tured by secondary intergranUlar and intragranular dissolved pores; The AS is small and low-connectivity and strong heterogeneity, belonging to low-porosity and low-permeability reservoirs. The classification and evaluation of the reservoirs results show that No. I and II-elass reservoirs are well-developed and pretty thicker in Harjin Structural Peak Zone of the middle operational area taking Chang Deep 1-1 Well and other 4 wells as boundary. These reser- voirs are the favorable regions for future exploration and development.

关 键 词：长岭1号气田 登娄库组 岩石类型 孔隙结构 储层分类评价 

分 类 号：TE122.2[石油与天然气工程—油气勘探]