马必东区块煤层气井螺杆泵排采制约因素分析及治理措施研究
Analysis of Restricting Factors and Research on Treatment Measures for Screw Pump Drainage of Coalbed Methane Well in Mabidong Block
邹红刚 1吴壮 1范红明 1李俊卿 1李志彬 1张慧1
作者信息
- 1. 华北油田公司山西煤层气勘探开发分公司,山西 046000
- 折叠
摘要
螺杆泵因具备排液量大、泵效高、设备占地面积小且易于装备等优点,主要在高产液量的合采井、水平井中应用,但在生产过程中随着排采程度累加后地层返液量减少,泵充盈度不够,泵效变低,造成螺杆泵运行过程中长期处于高温积碳状态发生烧泵.文章以马必东区块煤层气采气区为研究区,通过建立螺杆泵排采水产出、过滤、返注的循环装置,结合螺杆泵排采运行阶段特点,制定合理的运行模式,避免烧泵、卡泵等故障发生,保障螺杆泵的平稳运行,提高排采时率,对提高单井产能具有一定的积极作用.
Abstract
Due to the advantages of large liquid discharge,high pump efficiency,small equipment foot-print,and easy installation,screw pump is mainly used in high-yield liquid co-production wells and hori-zontal wells.However,in the production process,as the accumulation of drainage degree,the return liq-uid from the formation decreases,the pump filling degree is not enough,and pump efficiency becomes low,resulting in long-term high-temperature carbon accumulation during the operation of the screw pump and causing the burning burnout.The paper takes the coalbed methane production area of Mabidong Block as the research area to solve these problems by establishing a screw pump drainage system incorpo-rating water extraction,filtration and reinjection cycle,and combining with the characteristics of the screw pump operation stages,a suitable operating mode is developed to avoid the occurrence of pump burnout and stuck,ensure the smooth operation of the screw pump,and improve the drainage time rate,thereby enhancing the production capacity of individual wells.
关键词
马必东区块/螺杆泵/故障频发/注水循环/提高排采时率Key words
Mabidong Block/screw pump/frequent failures/water reinjection cycle/increase drainage time rate引用本文复制引用
出版年
2024
NETL
NSTL
万方数据