延川南煤层气田防煤粉工艺技术现状及建议  

Situation and suggestions of anti-pulverized coal technology of coalbed methane in South Yanchuan are

作　　者：张宏录[1] 谢先平[2] 张龙胜[1] 熊炜[1] 徐宁蔚[1] 苏杰[1] 

机构地区：[1]中国石化华东分公司工程院,江苏南京210031 [2]中国石化华东分公司非常规指挥部,山西临汾041000

出　　处：《油气藏评价与开发》2014年第6期75-77,共3页Petroleum Reservoir Evaluation and Development

摘　　要：针对延川南煤层气田在排采过程中出现的部分排采井煤粉卡泵的现状,开展了延川南煤层气田防煤粉工艺技术适应性分析。介绍了延川南煤层气田防煤粉工艺技术现状,对目前防煤粉工艺应用效果进行分析,指出了防煤粉工艺存在的问题及相应的对策。研究结果表明:大部分卡泵井日产液量低于1 m3,造成泵筒及油管内煤粉的沉降速度大于上升速度,单一防煤粉技术很难从根本上解决问题,宜采用"低排量举升工艺参数优选+防砂(防煤粉)排采泵组合防煤粉工艺"。实现既防止大直径的砂子或者煤粉颗粒进入泵筒,避免煤粉卡泵,又将小直径砂子或者煤粉颗粒排出地面,延长排采井的检泵周期的目的。Aiming at the stuck pump situation by pulverized coal in the process of production, adaptability analysis of anti-pulverized coal technology was conducted in coalbed methane of South Yanchuan. This paper introduced and analyzed the situation and application effects of anti-pulverized coal technology, and proposed the existed problems and corresponding countermeasures. The results showed that daily fluid production rate of most stuck pump wells were below 1 m3, which caused greater sinking speed than ascending velocity. While single anti-pulverized coal technology was difficult to fundamentally solve the problems. Parameter optimization of low delivery capacity lift technology and anti-pulverized coal technology of anti-pulverized production pump were suitable to be adopted. Thereby, the goal that not only to prevent large diameter sand and pulverized coal from entering pump barrel to avoide stuck pump by pulverized coal, but also to discharge minor diameter sand and powdered coal to prolong pump inspection cycle of production wells was realized.

关 键 词：煤层气 防煤粉 工艺技术 应用效果 

分 类 号：TE358[石油与天然气工程—油气田开发工程]