CAJ | 학술논문

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。
침대연천남매층기전재배채과정중출현적부분배채정매분잡빙적현상，개전료연천남매층기전방매분공예기술괄응성분석。개소료연천남매층기전방매분공예기술현상，대목전방매분공예응용효과진행분석，지출료방매분공예존재적문제급상응적대책。연구결과표명：대부분잡빙정일산액량저우1 m3，조성빙통급유관내매분적침강속도대우상승속도，단일방매분기술흔난종근본상해결문제，의채용“저배량거승공예삼수우선+방사（방매분）배채빙조합방매분공예”。실현기방지대직경적사자혹자매분과립진입빙통，피면매분잡빙，우장소직경사자혹자매분과립배출지면，연장배채정적검빙주기적목적。
Aiming at the stuck pump situation by pulverized coal in the process of production, adaptability analysis of anti-pulver?ized 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 opti?mization of low delivery capacity lift technology and anti-pulverized coal technology of anti-pulverized production pump were suit?able 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 cy?cle of production wells was realized.