铜锣峡构造中南段飞仙关组碳酸盐岩裂缝型储层预测  

THE PREDICTION FOR T_1f FRACTURE RESERVOIR OF CARBONATE ROCK IN THEMIDDLE-SOUTH ZONE OF TONGLUOXIA STRUCTURE

作　　者：蔡正旗[1] 郑超[2] 张荣义[2] 朱轶[1] 周基爽[1] 周龙[1] 

机构地区：[1]西南石油学院,四川新都610500 [2]西南油气田分公司重庆气矿,重庆400021

出　　处：《天然气地球科学》2005年第3期289-292,342,共5页Natural Gas Geoscience

基　　金：四川省重点学科建设项目(编号:SZD0414)资助.

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.

关 键 词：铜锣峡构造 飞仙关组 裂缝 储层预测 

分 类 号：TE122.221[石油与天然气工程—油气勘探]