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柱塞举升和速度管柱是解决天然气井积液问题通常采用的技术手段。速度管柱通常口径太小;使得抽汲工具和电缆起下工具难以下井应用,并且在气井产量递减时,因其流量不足防止了井积液。对柱塞举升而言,假如油管中有扼流装置,或者气井出砂,那么柱塞举升便不能正常工作。为了在气井产量递减时能够保持低的井底流压,要求研究推出解决气井积液问题的新方法。天然气连续循环(CGC)工艺克服了柱塞举升和速度管柱的缺陷。该工艺具有以下特点;允许应用标准口径的油管、抽汲工具和电缆起下工具;在油管中在具有扼流装置和气井出砂的条件下右以正常工作;可以保持低的井底流压;即便在气井产量递砬到几乎为零之后。仍可将液体排出井筒。
Plunger lift and speed tubing are common techniques used to solve the problem of effluent from natural gas wells. Speed spools are usually too small in diameter to make pumping tools and cable-lifting tools difficult to drill down and prevent wells from flooding due to low flow rates as production decreases. For plunger lift, the plunger lift will not function properly if there is a choke in the tubing or if the well is sanding. In order to be able to maintain a low bottom-hole pressure when gas production decreases, a new method of solving the problem of gas well production is demanded. Natural Gas Continuous Cycle (CGC) technology overcomes plunger lift and speed string defects. The process has the following features; allows the use of standard-diameter tubing, pumping tools and cables from the tool; in the tubing with the choke device and gas sands in the right conditions to work properly; can maintain a low bottom hole pressure; even if After the gas well delivery rate is almost zero. Liquid can still be discharged from the wellbore.