摘要
煤层气井是通过排水降压实现气体产出,为了避免排采过程中储层应力敏感和速敏造成的储层伤害,要求有严格的排水量控制,使得液面缓慢、匀速下降。根据目前煤层气井排采对产出液的计量需求,结合其在实际排采生产中的流量特性,提出一种翻斗结构的流量计,可以计量间歇出液、非满管、含煤粉、具有腐蚀性气液两相中液相流体的平均流量和累计流量,以满足现场对流量计量的需求。
Gas production is realized by means of drainage and pressure drop for coalbed methane wells. In order to avoid reservoir damage caused by stress sensitivity and quick sensitivity in the process of discharge, strict drainage con- trol is required, which makes the liquid level drop slowly and uniformly. According to the current measurement require- ments of the coalbed methane drainage and the flow characteristics in the actual discharge production, a flowmeter with a tipping-hopper structure is proposed, which can measure the intermittent liquid, non-full pipe, coal powder, the aver- age flow and cumulative Now in corrosive gas-liquid two-phase liquid flow to meet the needs of flow measurement on-site,
出处
《仪表技术》
2017年第11期33-36,共4页
Instrumentation Technology
关键词
煤层气井
翻斗结构
流量计量
coalbed methane wells
tipping structures
flowmeters
