[1]杨美纯,蔡 泉,张 驰,等.基于正交各向异性的碳酸盐岩裂缝型储层稳定反演预测方法——以塔里木盆地哈拉哈塘地区为例[J].华南地震,2025,(02):192-200.[doi:10.13512/j.hndz.2025.02.22]
 YANG Meichun,CAI Quan,ZHANG Chi,et al.Stability Inversion Prediction Method for Carbonate Fractured Reservoirs Based on Orthogonal Anisotropy:A Case Study of Halahatang Area of Tarim Basin[J].,2025,(02):192-200.[doi:10.13512/j.hndz.2025.02.22]
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基于正交各向异性的碳酸盐岩裂缝型储层稳定反演预测方法——以塔里木盆地哈拉哈塘地区为例()

华南地震[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2025年02期
页码:
192-200
栏目:
海洋地球物理
出版日期:
2025-06-30

文章信息/Info

Title:
Stability Inversion Prediction Method for Carbonate Fractured Reservoirs Based on Orthogonal Anisotropy:A Case Study of Halahatang Area of Tarim Basin
文章编号:
1001-8662(2025)02-0192-09
作者:
杨美纯123蔡 泉123张 驰123闫 婷123李 洁123廖 建4董 浩4
1.中国石油塔里木油田公司勘探开发研究院,新疆 库尔勒 841000;2.中国石油超深层复杂油气藏勘探开发技术研发中心,新疆 库尔勒 841000;3.新疆维吾尔自治区超深层复杂油气藏勘探开发工程研究中心,新疆 库尔勒 841000;4.成都西南石大石油工程技术有限公司,成都 610500
Author(s):
YANG Meichun123CAI Quan123ZHANG Chi123YAN Ting123LI Jie123LIAO jian4DONG Hao4
1.Research Institute of Exploration and Development , PetroChina Tarim Oilfield Company , Korla 841000, China;2.Research and Development Center for Ultra-Deep Complex Oil and Gas Reservoirs Exploration and Development, PetroChina , Korla 841000, China;3.Engineering Research Center for Ultra-Deep Complex oil and Gas Reservoirs Exploration and Development of Xinjiang Uygur Autonomous Region , Korla 841000, China ;4.Chengdu Southwest Petroleum Engineering Technology Co.,Ltd.,Chengdu 610500,China
关键词:
弹性阻抗反演裂缝储层OA介质贝叶斯理论
Keywords:
Elastic impedance inversionFraction reservoirOA mediumBayesian theory
分类号:
P618.13;P631.4
DOI:
10.13512/j.hndz.2025.02.22
文献标志码:
A
摘要:
叠前弹性阻抗反演是估算储层弹性参数和各向异性参数的反演方法之一,但随着介质复杂程度的增加,反演结果的稳定性也随之降低。该研究将发育一组垂直正交定向裂缝的碳酸盐岩储层等效为正交各向异性介质(OrthotropicMedium即为OA介质),利用碳酸盐岩裂缝型储层的宽方位地震数据研究适用于碳酸盐岩储层裂缝预测的稳定反演方法,以提高裂缝储层反演稳定性。首先推导出OA介质PP波弹性阻抗表达式,该方程从9个独立参数降低为3个待反演参数,降低了不同的独立参数对反射系数的贡献度差异,再结合贝叶斯理论的弹性阻抗反演方法,进而提高了反演算法的稳定性。在不同噪声条件下,对所提出的OA介质弹性阻抗反演方法进行了模型测试和实际工区应用,应用结果表明,该研究中的裂缝型储层预测方法与测井实钻符合率高达90%以上,验证了文中的方法在碳酸盐岩储层裂缝预测方面的可靠性。
Abstract:
Prestack elastic impedance inversion is one of the inversion methods for estimating elastic parameters and anisotropic parameters of reservoirs. However,as the complexity of the medium increases,the stability of the inversion results decreases. In this paper, a carbonate reservoir with a set of vertical orthogonal directional fractures was equivalent to an orthotropic(OA)medium. The wide-azimuth seismic data of carbonate fractured reservoirs were used to study a stable inversion method suitable for fracture prediction in carbonate reservoirs,so as to improve the inversion stability of fractured reservoirs. First,the PP wave elastic impedance expression for OA medium was derived. The equation was reduced from nine independent parameters to three parameters to be inverted, which lowered the contribution of different independent parameters to the reflection coefficient. Then, the elastic impedance inversion method based on Bayesian theory was adopted to improve the stability of the inversion algorithm. Under different noise conditions, the proposed elastic impedance inversion method for OA medium was tested in models and applied in actual work areas. The application results show that the fractured reservoir prediction method in this paper has a consistency rate of more than 90% with the actual drilling and logging,which verifies the reliability of the method in this paper in predicting fractures in carbonate reservoirs.

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备注/Memo

备注/Memo:
收稿日期:22024-10-12
作者简介:杨美纯(1991-),女,硕士,工程师,主要从事碳酸盐岩储油气藏预测研究工作。E-mail:yangmc-tlm@petrochina.com.cn
通信作者:廖建(1997-),男,学士,工程师,主要从事碳酸盐岩储层油气藏预测研究工作。E-mail:1061347029@qq.com
更新日期/Last Update: 2025-06-30