泡排工艺临界点分析及现场试验  

Critical-Point Analysis of Foam Drainage and its Field Test

作　　者：李宝昌[1] 杨逸[2] 赵哲军[2] 雷炜[2] 

机构地区：[1]中国石化西南油气分公司川北采气厂,四川阆中637400 [2]中国石化西南油气分公司工程技术研究院,四川德阳618000

出　　处：《天然气技术》2009年第2期28-30,共3页NATURAL GAS TECHNOLOGY

摘　　要：川西气田的泡沫排水被广泛应用并取得了良好效果。但仍有气井排液效果不理想,分析认为最主要的原因是泡沫排水采气的时机选择不当。为此,以气井最小携液流速理论为基础,选用改进后的Tuener携液模型,对泡沫排水采气应用时机的初点和末点进行了分析,选择出最佳泡排时机,避免了因时机不对盲目采用泡沫排水而造成不必要的浪费。Foam drainage has been widely applied to Tongchuanxi gasfield and the good results were obtained.However,a flowing back effect in some gas wells is not very satisfying just because the timing of foam drainage recovery is not good.Therefore,based on the minimum liquid velocity,an improved Tuener model was selected,then initial and end points of timing for foam drainage were analyzed,at last an optimal timing was selected to avoid unnecessary waste due to incorrect foam drainage.

关 键 词：低压气井 泡沫排水 Tuener改进 模型 临界携液 

分 类 号：TE377[石油与天然气工程—油气田开发工程]