井下可调节防砂节流器模型设计

为了更好的实现气井区块数字化无人管理模式,增强气井生产过程动态研究特性,本文以现有节流器为出发点,设法改变气嘴内部构造,由孔洞式变为缝隙,充分利用缝隙的可调节性,连通套管、节流器气嘴、地面压力装置,借助地面压力调控系统,来实现对节流器气嘴缝隙宽窄的调节,从而实现不同时期定压、定量的生产过程。同时利用气嘴内部强大的“负压差”来实现气嘴清洗,解决砂堵问题。因此,本设想不仅延续了井底防治水合物形成的方法,解决了不更换气嘴就能调节气量、排水生产等功能,而且还能时刻测算出井底套压,降低作业成本。为下一步数字化区块无人管理提供了可能

Downhole adjustable choke modeling sand

In order to achieve better gas block no management of digital and strengthen the dynamic of gas well production characteristics, this paper as a starting point the existing choke, try to change the internal structure of gas nozzle from the hole into a slot-type, take full advantage of the gap Adjustable, connectivity casing, restrictor gas nozzle, ground pressure equipment, pressure control system with the ground, to achieve the gas nozzle restrictor regulation of gap width to achieve different periods of constant pressure, the quantitative production process. While taking advantage of the internal gas nozzle powerful "negative pressure" to achieve the gas nozzle cleaning, sand plug solve the problem. Therefore, the idea of not only the continuation of the bottom control hydrate formation method to solve the gas nozzle can be adjusted without changing gas, water production and other functions, but also to measure the bottom set of time pressure, reduce operating costs. Digital blocks for the next unattended possible.