泡沫水泥固井技术在沁南盆地煤层气开发中的研究应用  

Research and Application of Cementing Technology of Foam Cement in the Development of CBM in Southern Qinshui basin

作　　者：卢国军[1] 王力[1] 胡秋萍[1] 邓志宇[1] 王春东[1] LU Guo-jun WANG Li HU Qiu-ping DENG Zhi-yu WANG Chun-dong(China United Coalbed Methane Corporation, Ltd., Beijing 100011, China)

机构地区：[1]中联煤层气有限责任公司,北京100011

出　　处：《西部探矿工程》2017年第1期32-34,共3页West-China Exploration Engineering

基　　金：国家重大科技专项<大型油气田及煤层气开发>项目60"山西沁水盆地南部煤层气直井开发示范工程(二期)"(2011zx05060)资助

摘　　要：常规煤层具有机械强度低、渗透率低、孔隙压力小、储层易坍塌的特点。使用常规水泥浆固井过程中易出现污染煤层、压漏地层的问题,增加井下复杂情况,造成煤储层渗透率下降,影响产能的发挥。对泡沫水泥固井技术的特点及制备方法进行了详述,该技术通过在沁南盆地煤层气开发中的实际应用,初步建立了一套煤层气井储层保护的泡沫水泥固井体系及施工方法,现场应用效果良好。Conventional coal reservoir has the characteristics of low mechanical strength,low permeability,small pore pressure and easy collapse.Using conventional slurry cementing process are more likely to cause the pollution of coal seam and the leakage of layer,increase underground complex situation,decrease the coal reservoir permeability,thus influence the gas well productivity.This paper also expounds the characteristics and preparation methods of foam slurry cementing technology.We have preliminary established a set of CBM reservoir protection foam slurry cementing system and implementation methods through the excellent practical application of CBM development in Southern Qinshui basin.

关 键 词：煤层 泡沫水泥 固井技术 储层保护 沁南盆地 

分 类 号：TD256[矿业工程—矿井建设]