哈萨克斯坦B油田M02段综合地震储层预测

doi:10.11720/wtyht.2021.2563

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摘要

哈萨克斯坦B油田下白垩统上达乌尔组M02段为辫状河相沉积,储层以含砾砂岩和细砂岩为主,砂体在纵横向上变化较快,储层展布规律认识不清严重制约了油田的滚动勘探开发进程。本次研究基于新一轮精细构造解释成果,通过精细合成记录标定、地震正演模拟、地震属性分析、常规地震反演以及地质统计学反演等储层预测技术的综合应用,消除了地震属性分析存在的多解性,弄清了砂体宏观展布规律,并且突破了常规地震分辨率的限制,落实了M02段薄砂体展布特征,建立了适用于本油田的综合地震储层预测技术序列。通过该技术序列在本地区的成功应用,为油田的滚动评价和注水开发提供了有力依据,对油田的增储上产做出了巨大贡献,同时对类似区块的储层预测工作具有借鉴和指导意义。

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	刘家材
	张冲
	韩绪军

关键词 ：辫状河相, 综合地震储层预测, 地震属性分析, 常规地震反演, 地质统计学反演

Abstract：

M02 member of Upper Dual Formation of Lower Cretaceous in B Oilfield in Kazakhstan belongs to braided fluvial deposits.The reservoirs are mainly gravel-bearing sandstone and fine sandstone.Sand bodies change rapidly in both vertical and horizontal directions.Uncertainty of reservoir distribution laws seriously restricts the progressive exploration and development process of the oilfield.Based on a new round of fine structure interpretation,the comprehensive application of a series of reservoir prediction techniques such as fine synthetic seismogram calibration,seismic forward modeling,seismic attribute analysis,conventional seismic inversion and geostatistical inversion was successfully implemented,which eliminated the multi-solution of seismic attribute analysis,made clear sand reservoir macroscopic distribution laws,and finely depicted the distribution characteristics of thin sand bodies in M02 breaking through the limitation of conventional seismic resolution.Finally,a comprehensive technological sequence of seismic reservoir prediction techniques suitable for this oilfield was established.Successful application of this technology sequence in this region provides a powerful basis for rolling evaluation and water injection development and has made a great contribution to increasing reserves and production of the oilfield.Meanwhile,it has reference and guidance significance for reservoir prediction in similar blocks.

Key words： braided fluvial facies comprehensive seismic reservoir prediction seismic attribute analysis conventional seismic inversion geostatistical inversion

收稿日期: 2019-12-02 修回日期: 2020-11-12 出版日期: 2021-04-20

ZTFLH:

P631.4

基金资助:振华石油十三五科技创新项目“哈萨克B油田M02油层储层精细描述及剩余油分布研究”(CNPED-TS-2017001)

作者简介: 刘家材(1983-),男,高级工程师,主要从事地震资料解释和综合地质研究工作。Email: liujiacai@zhenhuaoil.com

引用本文:

刘家材, 张冲, 韩绪军. 哈萨克斯坦B油田M02段综合地震储层预测[J]. 物探与化探, 2021, 45(2): 379-386.
LIU Jia-Cai, ZHANG Chong, HAN Xu-Jun. Comprehensive seismic reservoir prediction of M02 member in B Oilfield in Kazakhstan. Geophysical and Geochemical Exploration, 2021, 45(2): 379-386.

链接本文:

https://www.wutanyuhuatan.com/CN/10.11720/wtyht.2021.2563 或 https://www.wutanyuhuatan.com/CN/Y2021/V45/I2/379

Fig.1 B-FA井合成记录标定剖面

Fig.2 正演模拟剖面

Fig.3 M021均方根振幅属性

Fig.4 M021钻井统计砂体厚度

Fig.5 M022均方根振幅属性

Fig.6 M022钻井统计砂体厚度

Fig.7 综合地震反演储层预测流程

Fig.8 约束稀疏脉冲反演波阻抗剖面

Fig.9 M021预测砂体分布

Fig.10 M022预测砂体分布

Fig.11 地质统计学反演抽井检查岩性剖面

Fig.12 地质统计学反演波阻抗镂空剖面

Fig.13 M021预测砂体厚度

Fig.14 M022预测砂体厚度

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