海外碳酸盐岩油藏储层特征分析及其对产能影响

卢志明; 徐士鹏; 艾尼·买买提; 王成林; 高立群; 杨智刚; 闫超; 霍进杰

doi:10.3969/j.issn.1006-6535.2021.03.007

特种油气藏 >

2021 , Vol. 28 >Issue 3: 47 - 53

DOI: https://doi.org/10.3969/j.issn.1006-6535.2021.03.007

地质勘探

海外碳酸盐岩油藏储层特征分析及其对产能影响

卢志明 ,
徐士鹏 ,
艾尼·买买提 ,
王成林 ,
高立群 ,
杨智刚 ,
闫超 ,
霍进杰

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中国石油新疆油田分公司,新疆克拉玛依 834000

卢志明(1985—),男,工程师,2011年毕业于东北石油大学资源勘查工程专业,现从事油田开发工作。

收稿日期: 2020-05-12

修回日期: 2021-03-23

网络出版日期: 2022-02-16

基金资助

中国石油哈萨克斯坦公司科研基金研究项目“1928区块西部综合地质研究及勘探目标优选”(1708034)

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Analysis of reservoir characteristics and their effect on productivity of overseas carbonate reservoirs

Lu Zhiming ,
Xu Shipeng ,
Aini Maimaiti ,
Wang Chenglin ,
Gao Liqun ,
Yang Zhigang ,
Yan Chao ,
Huo Jinjie

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PetroChina Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China

Received date: 2020-05-12

Revised date: 2021-03-23

Online published: 2022-02-16

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摘要

针对哈萨克斯坦南图尔盖盆地卡拉布拉克油田储层岩性及储集空间类型复杂多样、有利储层识别难度大,裂缝带分布特征及产能作用认识不清的问题,利用岩心、常规测井、地震资料逐级标定,以敏感曲线和敏感参数优选为核心,识别出储层岩性主要为灰岩、生物灰岩、角砾灰岩、泥质灰岩;储集空间类型主要为骨架型、裂缝-孔洞型和裂缝-岩溶角砾型。结合试油试采结果,将储层划分为Ⅰ、Ⅱ、Ⅲ类,识别出有利储层发育区,分别为生物灰岩发育区、裂缝型灰岩发育区、泥质灰岩及岩溶角砾岩发育区;裂缝发育区集中于中区北部断裂带附近,是油田主要产能贡献区。该研究为海外碳酸盐岩储层特征研究提供重要思路,对同类油藏的高效开发具有借鉴意义。

关键词： 碳酸盐岩油藏; 储层特征; 有利储层; 产能分析; 卡拉布拉克油田; 南图尔盖盆地

本文引用格式

卢志明 , 徐士鹏 , 艾尼·买买提 , 王成林 , 高立群 , 杨智刚 , 闫超 , 霍进杰 . 海外碳酸盐岩油藏储层特征分析及其对产能影响[J]. 特种油气藏, 2021 , 28(3) : 47 -53 . DOI: 10.3969/j.issn.1006-6535.2021.03.007

Abstract

A comprehensive and detailed analysis of reservoir characteristics is urgently needed to address the problems of complex and diverse lithologies and space types, difficult identification of favorable reservoirs, and poor understanding of distribution characteristics of fracture zones and effect on productivity in the Karabulak Oilfield (a carbonate reservoir), the South Turgay Basin, Kazakhstan. By applying core-conventional logging-seismic data calibration step by step, centered on sensitivity curve and sensitivity parameter optimization, four lithologies were identified, mainly tuff, biotuff, breccia tuff and mud tuff. Reservoir space types were dominated by fracture-cavity type, fracture-karst breccia type, fracture type and cavity type. According to the results of formation testing and pilot production, the reservoirs were divided into Types Ⅰ,Ⅱ, and Ⅲ, and favorable reservoir development areas were identified, including biological limestone development area, fractured limestone development area, and argillaceous limestone and karst breccia development area. fracture development areas are mainly concentrated near the northern fault zone of the central area, with great contribution to productivity of the oilfield. This study provides important ideas for the study of the characteristics of overseas carbonate reservoirs and an important reference for efficient development of similar reservoirs.

Key words： carbonate reservoir; reservoir characteristics; favorable reservoir; productivity analysis; South Turgay Basin; Karabulak Oilfield

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