昆特依气田2区块基岩裂缝预测及孔—缝叠置分析

doi:10.11720/wtyht.2025.1427

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摘要

针对柴达木盆地昆特依气田昆2区块基岩目的层中的储层储集空间发育溶蚀孔和裂缝认识不清楚的问题,利用地震资料分选5大类12种属性分别对基岩储层进行裂缝预测和对比分析,结果表明:最大似然属性与井资料吻合好,纵横向分辨率高,优于曲率、相干、不连续和相似性类属性。同时,采用溶孔-裂缝叠合分析法,有效预测了基岩储层分布有利区,为后续开发井位部署提供了依据。

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	马元琨
	温中林
	李积永
	王海成
	陈芳芳
	徐钰
	张蕾
	潘以红

关键词 ：昆特依气田, 裂缝预测, 容孔, 最大似然属性

Abstract：

This study aims to determine the development of dissolution pores and fractures in the target bedrock reservoir space in the Kun 2 block in the Kunteyi gas field within the Qaidam Basin. The seismic data were classified into 12 attributes in five major categories for fracture prediction and comparative analysis of bedrock reservoirs. The results show that the maximum likelihood attribute aligned highly with the well data, with high vertical and horizontal resolution, superior to curvature, coherence, discontinuity, and similarity attributes. Moreover, the favorable areas for the distribution of bedrock reservoirs were effectively predicted using the dissolution pore-fracture overlay analysis method, providing a basis for subsequent exploitation well deployment.

Key words： Kunteyi fracture prediction dissolution pore maximum likelihood attribute

收稿日期: 2024-10-22 修回日期: 2024-11-20 出版日期: 2025-06-20

ZTFLH:

P631.4

作者简介: 马元琨(1992-),男,青海海东人,学士,高级工程师,主要从事油气田开发地质研究工作。Email:mykyjyqh@petrochina.com.cn

引用本文:

马元琨, 温中林, 李积永, 王海成, 陈芳芳, 徐钰, 张蕾, 潘以红. 昆特依气田2区块基岩裂缝预测及孔—缝叠置分析[J]. 物探与化探, 2025, 49(3): 588-598.
MA Yuan-Kun, WEN Zhong-Lin, LI Ji-Yong, WANG Hai-Cheng, CHEN Fang-Fang, XU Yu, ZHANG Lei, PAN Yi-Hong. Bedrock fracture prediction and pore-fracture overlay analysis: A case study of the Kun 2 block in the Kunteyi gas field. Geophysical and Geochemical Exploration, 2025, 49(3): 588-598.

链接本文:

https://www.wutanyuhuatan.com/CN/10.11720/wtyht.2025.1427 或 https://www.wutanyuhuatan.com/CN/Y2025/V49/I3/588

Fig.1 昆特依气田昆2区块基岩顶界构造

Fig.2 冷北斜坡地层柱状图

Fig.3 不同属性的裂缝预测效果对比

Fig.4 已钻井的最大似然属性裂缝预测剖面与成像测井解释结果对比

Fig.5 测井解释孔隙度与地震预测裂缝强度交汇图

Fig.6 过昆101、昆2-2、昆2-X1、昆2、昆1-1井联井裂缝预测剖面

Fig.7 昆特依区块基岩0~300 m段裂缝预测平面分布

Fig.8 过昆101、昆2-2、昆2-X1、昆2、昆1-1井联井孔—缝叠合剖面

Fig.9 昆特依区块基岩分段孔—缝叠合平面分布

Fig.10 昆特依区块0~300 m段孔—缝叠合平面分布

Fig.11 昆特依区块0~300 m段综合评价成果

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