摘要
中国从８０年代末开始引进美国的地面垂直井技术在全国约１８个含煤盆地中进行了煤层气的勘探和开发试验，几乎所有的试验结果都表明中国的煤层气井不能获得高产。作者通过分析中国煤层气藏的特殊性解释了当前煤层气井不能高产的原因，将中国煤层气藏的主要特征概括为五个方面。提出，根据中国煤层气藏的特殊条件，应从提高导流能力、建立有效压差等五个方面入手，完善现有的煤层气开发技术。最后，作者建议应积极采用欠平衡钻井技术，并针对我国目前煤层气藏的地质条件建立了三个煤层气开发技术系列。
CBM exploration and production test have been conducted in about 18 major coal-bearing basins in China since the introduction of surface vertical hole gas recovery technology in the late 1980's. But almost none of the test wells could encourage us with a stable high gas production rate. This phenomenon seems to demonstrate a very dark future of China CBM industry. The authors analyzed geological backgrounds and engineering history of China CBM reservoir development, and pointed out that the poor well performance in China CBM reservoir peculiarities. The authors believe that there are five entrances of us to get on the way of increasing our well production rate. And under balance drilling technology is strongly recommended. Three series of production technology are created to fit various China CBM reservoir.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
2001年第6期17-19,共3页
Natural Gas Industry
基金
本文受国家自然科学基金资助
批准号:79842001。
