苏里格气田苏49区块盒8下亚段致密储层非均质性特征

doi:10.12108/yxyqc.20210207

岩性油气藏 ›› 2021, Vol. 33 ›› Issue (2): 59–69.doi: 10.12108/yxyqc.20210207

苏里格气田苏49区块盒8下亚段致密储层非均质性特征

龙盛芳, 王玉善, 李国良, 段传丽, 邵映明, 何咏梅, 陈凌云, 焦煦

中国石油集团渤海钻探工程有限公司油气合作开发分公司, 天津 300457

收稿日期:2020-09-28 修回日期:2020-10-28 出版日期:2021-04-01 发布日期:2021-03-31
通讯作者: 王玉善(1971—),男,硕士,高级工程师,主要从事油气田开发方面的研究工作。Email:wangyushan@cnpc.com.cn。 E-mail:wangyushan@cnpc.com.cn
作者简介:龙盛芳(1990—),女,硕士,工程师,主要从事油气地质勘探方面的研究工作。地址:(300457)天津市经济技术开发区第二大街83号。Email:1298489928@qq.com
基金资助:
中国石油集团油田技术服务有限公司合作项目“油气合作区块建产与稳产技术综合研究”（编号：2018T-004）资助

Heterogeneity characteristics of tight reservoir of lower submember of He 8 member in Su 49 block,Sulige gas field

LONG Shengfang, WANG Yushan, LI Guoliang, DUAN Chuanli, SHAO Yingming, HE Yongmei, CHEN Lingyun, JIAO Xu

Oil and Gas Cooperative Development Branch, CNPC Bohai Drilling Engineering Co., Ltd., Tianjin 300457, China

Received:2020-09-28 Revised:2020-10-28 Online:2021-04-01 Published:2021-03-31

摘要/Abstract

摘要： 苏里格气田苏49区块盒8下亚段发育典型致密砂岩气藏，气水分布规律复杂且单井产气量差异大，为了明确储层非均质性对气藏分布和气井产能的影响，实现气田高效开发，在精细地层划分对比的基础上，充分利用钻测井、测试分析和气井生产资料，对储层层内、层间和平面非均质性进行系统研究。结果显示：①研究区盒8下亚段层内和层间非均质性均较强，其中盒8下2砂层组储层物性总体较差、层内夹层多、砂体垂向和平面上连通性差，其非均质性要强于盒8下1砂层组；②平面上，研究区西部的层间和平面非均质性均严重，中部苏176三维区及附近的盒8下1砂层组砂体连通性好，存在相对高孔高渗带，夹层较少，有利于天然气富集并成藏；③储层非均质性对含气性、气层宏观展布和开发效果影响均明显，相对好的储层物性、连通性和低的夹层频率均是天然气富集和高产的关键。该结果可为研究区及类似地区井位部署和后期开发提供参考。

关键词: 夹层, 致密砂岩储层, 非均质性, 盒8下亚段, 苏里格气田

Abstract: Typical tight sandstone reservoirs are developed in lower submember of He 8 member in Su 49 block, Sulige gas field. The gas-water distribution rules are complex and the gas production of single well varies greatly. In order to clarify the influence of reservoir heterogeneity on gas reservoir distribution and gas well productivity, and to achieve efficient development of gas field,based on fine stratigraphic division and comparison,the systematic research on reservoir and plane heterogeneity was carried out by making full use of the data of drilling and logging,testing analysis and gas well production. The results show that:(1) The heterogeneity of lower submember of He 8 member in the study area is relatively strong. The reservoir physical properties of lower sand group 2 of He 8 member are generally poor,there are many interlayers in the layer,and the vertical and plane connectivity of sand body is poor,and its heterogeneity is stronger than that of lower sand group 1 of He 8 member.(2) On the plane,the interlayer and plane heterogeneity in the west of the study area are strong,the sand body connectivity of lower sand group 1 of He 8 member in Su 176 area and nearby is good,and there are relatively high porosity and permeability zones with less interlayer,which is favorable for natural gas enrichment and accumulation.(3) Reservoir heterogeneity has obvious influences on gas-bearing property,macro distribution of gas reservoir and development effect. Relatively good reservoir physical property,connectivity and less interlayer are the key to gas enrichment and high production. The results can provide reference for well location deployment and later development in the study area and similar areas.

Key words: interlayer, tight sandstone reservoir, heterogeneity, lower submember of He 8 member, Sulige gas field

中图分类号:

TE121.1

龙盛芳, 王玉善, 李国良, 段传丽, 邵映明, 何咏梅, 陈凌云, 焦煦. 苏里格气田苏49区块盒8下亚段致密储层非均质性特征[J]. 岩性油气藏, 2021, 33(2): 59–69.

LONG Shengfang, WANG Yushan, LI Guoliang, DUAN Chuanli, SHAO Yingming, HE Yongmei, CHEN Lingyun, JIAO Xu. Heterogeneity characteristics of tight reservoir of lower submember of He 8 member in Su 49 block,Sulige gas field[J]. Lithologic Reservoirs, 2021, 33(2): 59–69.

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苏里格气田苏49区块盒8下亚段致密储层非均质性特征

Heterogeneity characteristics of tight reservoir of lower submember of He 8 member in Su 49 block,Sulige gas field

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