四川盆地天然气开发实践与认识

PRACTICE AND KNOWLEDGE OF NATURAL GAS DEVELOPMENT IN SICHUAN BASIN

四川盆地天然气开采历史悠久 ,在长期的开采实践中 ,积累了丰富的开发经验 ,形成了一套气田开发的方法、技术和理论。 80年代以来 ,通过“七五”、“八五”、“九五”的攻关 ,气藏开发技术得到了不断地完善和提高 .本文针对四川气田最具特色的裂缝性气藏、低渗透气藏、有水气藏 ,汇集了多年的研究成果 ,特别是“九五”攻关成果 ,对气藏开发的实践和认识作了简要的论述 ,主要反映开发这些复杂地质条件和开采特点的气藏 。

The natural gas exploitation in Sichuan Basin has a long history.During a long term producing practice,a great deal of developing experience has been accumulated and a series of methods,techniques and theories of gas field development have been established.Since the 80's of the 20th century,the gas reservoir development techniques have been unceasingly improved and enhanced through tackling key research projects in the Seventh,Eighth and Ninth'Five Year'Plans.In light of the fractured gas reservoirs,low permeability gas reservoirs and water carrying gas reservoirs which are characteristic of the gas fields in Sichuan Basin,the key research achievements finished in the past, especially in the Ninth 'Five Year' Plan,are summarized and the practice and knowledge of gas reservoir development are simply expounded in the paper,in which some cognitions of regularities of developing these complex gas reservoirs are mainly reflected.