摘要
煤层的含气预测对寻找煤层高产富集区以及指导煤层气布井与开采有着至关重要的作用,本文以沁南东为例,将常规油气藏的含气性预测方法包括振幅属性、频率属性与叠前AVO技术应用到煤层气中,通过正演论证了技术方法的可行性,通过与井标定优选出了最适合本地区煤层的含气性预测方法。
The gas-bearing prediction of coal seams is crucial for finding enriched areas and directing well pattern optimization.In this paper,Southeast of Qinshui Basin is selected as an example,and three methods are chosen to predict the gas-bearing of coal seams which include Seismic Attribute,Energy attenuation abnormity,AVO analysis.After forward modeling,the seismic response characteristics and AVO abnormity of the gas-bearing reservoir could be obtained,so that more available method could be used to prediction the gas-bearing of coal seams after calibrate with wells.
作者
刘慧
张浩
冯小英
武函
田思思
LIU Hui;ZHANG Hao;FENG Xiaoying;WU Han;TIAN Sisi(Exploration and Development Research Institute,PetroChina Huabei Oilfield Company,Hebei 062552)
出处
《中国煤层气》
2019年第3期12-15,共4页
China Coalbed Methane
基金
国家重大专项“沁水盆地高煤阶煤层气高效开发示范工程”(2017ZX05064)
关键词
煤层气
含气预测
正演模拟
地震属性
吸收衰减
AVO技术
CBM
gas-bearing prediction
forward modeling
seismic attribute
energy attenuation abnormity
AVO analysis
