铜锣峡构造中南段飞仙关组碳酸盐岩裂缝型储层预测
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摘要
铜锣峡构造中南段飞仙关组储层主要发育在飞一段和飞三段的鲕粒灰岩中,储层具有明显的低孔低渗特征,属裂缝型储层。过去多采用单一方法来预测裂缝型储层,如常用的地震速度反演等,但预测效果往往较差。本研究采用曲率法及STRATA反演来综合预测裂缝型储层,预测精度明显提高;主要是对传统的曲率法进行了重大改进,在各网格节点上分别计算了线曲率及面曲率,经标准化处理后,再提取各节点上的曲率最大值来预测构造裂缝发育区。
The reservoir mainly developed in the T_1f~1 and T_1f~3 oolite limestones, which was unambiguously characteristic of low porosity and flow permeability and belonged to fracture reservoirs. A single method was used to predict the fracture reservoirs in the past, such as the inversion of seismic velocity in common use etc, the prediction effect of which was relatively bad. This study combined curvature method with the inversion of STRATA for predicting the fracture reservoirs, the precision level of which was increased obviously. In particular, it made great improvement for conventional curvature methods. It respectively calculated line curvature and area curvature on all grid nodes, and picked up the maximal curvature for predicting the development areas of structural fracture through standardized processing. In a word, this comprehensive prediction method will have bright future in actual application.
The reservoir mainly developed in the T_1f~1 and T_1f~3 oolite limestones, which was unambiguously characteristic of low porosity and flow permeability and belonged to fracture reservoirs. A single method was used to predict the fracture reservoirs in the past, such as the inversion of seismic velocity in common use etc, the prediction effect of which was relatively bad. This study combined curvature method with the inversion of STRATA for predicting the fracture reservoirs, the precision level of which was increased obviously. In particular, it made great improvement for conventional curvature methods. It respectively calculated line curvature and area curvature on all grid nodes, and picked up the maximal curvature for predicting the development areas of structural fracture through standardized processing. In a word, this comprehensive prediction method will have bright future in actual application.
引文
[1] 康义逵,任文清,朱用斌,等.极值主曲率法预测天然裂缝发育带的方法与实践[J].油气井测试,2002,11(4):22-26.
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[3] 胡宗全,廖红伟,刘人和.分砂层地质曲率分析在裂缝预测中的应用[J].石油实验地质,2002,24(5):450-454.
[4] 黄花香,吴战培.速度反演技术在四川盆地储层预测中的应用[J].石油物探,2002,40(4):456-460.
[5] 张永生,李家蓉.地震和测井联合反演技术在塔河油田碳酸盐岩储层预测中的应用[J].勘探地球物理进展,2002,25(4):46-48.
[6] 黄花香,吴战培,熊艳,等.速度反演技术在四川盆地储层预测中的应用[J].石油物探,2002,41(4):456-460.
[7] 王永刚,李振春.利用地震信息预测储层裂缝发育带[J].石油物探,2000,39(4):57-63.
[8] 刘宏,蔡正旗,郑超,等.大池干井构造带嘉二2储层特征及有利区预测[J].天然气地球科学,2004,15(6):614-618
[2] 王学军,陈汉林.拟合曲率综合预测裂缝方法建立及其在陆西凹陷中的应用[J].浙江大学学报(理学版),2002,29(6):712-719.
[3] 胡宗全,廖红伟,刘人和.分砂层地质曲率分析在裂缝预测中的应用[J].石油实验地质,2002,24(5):450-454.
[4] 黄花香,吴战培.速度反演技术在四川盆地储层预测中的应用[J].石油物探,2002,40(4):456-460.
[5] 张永生,李家蓉.地震和测井联合反演技术在塔河油田碳酸盐岩储层预测中的应用[J].勘探地球物理进展,2002,25(4):46-48.
[6] 黄花香,吴战培,熊艳,等.速度反演技术在四川盆地储层预测中的应用[J].石油物探,2002,41(4):456-460.
[7] 王永刚,李振春.利用地震信息预测储层裂缝发育带[J].石油物探,2000,39(4):57-63.
[8] 刘宏,蔡正旗,郑超,等.大池干井构造带嘉二2储层特征及有利区预测[J].天然气地球科学,2004,15(6):614-618
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