LG地区复杂礁滩气藏描述技术  

RESERVOIR DESCRIPTION FOR COMPLEX BIOREEF-SHOAL GAS RESERVOIR IN LG AREA

作　　者：刘勇[1,2] 邓惠 杨学峰[1,2] 冯曦[1,2] 朱占美[1,2] 别沁[3] 

机构地区：[1]中国石油西南油气田公司勘探开发研究院 [2]国家能源高含硫气藏开采研发中心 [3]中国石油西南油气田公司输气处工艺研究所

出　　处：《天然气勘探与开发》2014年第3期41-44,6,共4页Natural Gas Exploration and Development

基　　金：国家科技重大专项(2011ZX05047)"四川龙岗地区大型碳酸盐岩气田开发示范工程";国家科技重大专项课题(2011ZX05015-003)"复杂碳酸盐岩气藏开发技术研究"

摘　　要：碳酸盐岩气藏描述技术自上个世纪70年代后经历了以测井为主的气藏描述阶段、多学科气藏描述发展阶段、多学科一体化气藏描述三个阶段。对于以构造圈闭为主的碳酸盐岩气藏描述,技术已经较成熟;对于以岩性圈闭为主的复杂礁滩碳酸盐岩气藏描述,由于成因机理复杂、断裂发育、井距大、流体分布复杂等因素造成气藏地质描述困难。针对这些技术难题,攻关建立了井震结合、动静结合、地震约束与相控随机建模相结合、水侵动态预测与精细数值模拟相结合的方法,优化地质模型和定量计算气藏储量,为科学高效开采与提高气藏采收率提供技术支撑。该项技术在四川盆地复杂碳酸盐岩气藏中推广应用,效果显著。For carbonate gas reservoirs,the description technology has experienced three stages since the 1970 s,including logging-based,multi-disciplinary,and multi-disciplinary integration reservoir description.For structural carbonate gas reservoirs,the description technology is relatively mature.But for lithological complex bioreef-shoal carbonate gas reservoirs,the description is difficult due to complicated generation mechanism,fault development,wide well spacing,and complicated fluid distribution.To solve these problems,a technology based on much combination of well-logging and seismic data,dynamic and static data,seismic data constraint and facies-controlled stochastic modeling,and water-invasion performance prediction and fine numerical simulation was developed to optimize geologic model and to calculate quantitatively reserves.This technology has achieved significant effects in complex carbonate gas reservoirs of Sichuan Basin.

关 键 词：气藏描述技术 复杂碳酸盐岩 LG地区 四川盆地 

分 类 号：P618.13[天文地球—矿床学]