洛带蓬莱镇组气藏压裂工艺技术研究及应用  

FRACTURING TECHNOLOGY FOR GAS RESERVOIR IN PENGLAIZHENG FORMATION OF LUODAI GASFIELD AND ITS APPLICATION

作　　者：丁咚[1] 刘林[1] 李思洲[2] 

机构地区：[1]中国石化西南油气分公司工程技术研究院 [2]中国石化西南油气分公司龙星公司

出　　处：《天然气勘探与开发》2012年第3期60-62,72,共4页Natural Gas Exploration and Development

摘　　要：洛带气田蓬莱镇组(J3p)气藏储层具有孔渗性差、地层压力低、砂泥互层、砂体分布范围小和纵横向上非均质性强等特点,单井自然产能低,以前的压裂效果不明显。自2009年以来,通过研究形成了"液氮增能、全程纤维、快速返排、分压合采、优化参数"等关键压裂技术。该套技术针对性强,压裂增产效果明显,从而盘活了低品位储量,发挥了小气田挖潜开发的巨大潜力,为川西地区中浅层气藏难动用储量的开发提供了压裂工艺技术保障。Gas reservoir in Penglaizheng Formation(J3P) of Luodai gasfield is featured by low-porosity and-permeability,low formation pressure,sandstone interbedded nith mudstone small-scale sand body and strong heterogeneity in longitudinal and transverse directions.Therefore,natural productivity is low and fracturing is ineffective in single well.Since 2009,some key fracturing technologies,including liquid-nitrogen energy increasing,full-period fiber,rapid flow back,separate pressure production and parameter optimizing,have formed.This set of technology has an obvious effect of fracturing stimulation on low grade reserves.It is so important in potential tapping for small gasfield and provides technical support for developing hard-to-recover reserves of middle-shallow gas reservoirs in western Sichuan area.

关 键 词：洛带气田 蓬莱镇组 中浅层 难动用储量 压裂工艺 

分 类 号：TE377[石油与天然气工程—油气田开发工程]