Zhou Ruili，Luo Yi，Qiao Qianyu，et al.Design andapplicationof fluid pump drainage gas recovery technology in Dongsheng gas field[J].China PetroleumMachinery，2025，53（7）：122-128.

Design and Application of Fluid Pump Drainage Gas Recovery Technology in Dongsheng Gas Field

Zhou Ruili Luo YiQiao QianyuWu Weiran Yang FeishanZhao Rundong Xue Zhaoyang （SinopecNorthChinaPetroleumCompany;SinopecKeyLaboratoryforExplorationandDevelopmentofDepCoalbedMethane

Abstract：To effectively addressthe bottleneck problems of high injection pressure and high energy consumptionof hydraulic jetpump technology，it is urgentto improve andoptimize the drainage gas recovery technologyof high water-production gas wells.First，based on the design principle of Venturi efect，the fluid pump technology using gas as jet medium was adopted to eficiently activate the production capacityof mediumand low-pressure high water production gas wellsand improve the technologyadaptability.Second，Well Q1 was selected toconductapplication evaluation offluid pump technology.The study results show that the fluid pump technology only needs 5- 7 MPa pressure to realize normal cleanup，the production time rate is up to 98.4 4% ，the liquid withdrawal capacity is18.42 times higher than thatof single well rotative gas lift technology，and thedailyliquidflowrate is 13.1 times higherthan thatof theelectric valve intermitentopening technology.Inaddition，itdoes notneed the assistance of foam-aided drainage gas recovery technology. Compared with the jet pump technology，the pump pressure is only 20.6%-32 3% of the jet pump，and the daily average power consumption is only 34. 6% - 75. 3% of the jet pump，fully verifying the effectivenessoflow pressure andlow energy consumption work of the fluid pump，and successfullysolving the problem of high injection pressure and high energyconsumption of hydraulic jetpump.The study results areof great significance for realizing continuous liquid-carrying gas production of gas wells and efficiently activating the production capacity of high water-production gas wells.

Keywords： Dongsheng gas field； fluid pump; drainage gas recovery; device design；application evaluation high water-production gas well

0 引言

鄂尔多斯盆地东胜气田是国内已开发的水气比最高的致密高含水气藏，水气比大于 10m³/10⁴m³ 的高产水区块储量规模近千亿 。在实际生产中，由于油管内气液两相滑脱，高产水气井极易产生井筒积液水淹的问题。传统的优选管柱、泡沫排水、机抽排水、电潜泵排水及气举排水等排水采气工艺复产难度大、稳产周期短、投资成本高，均存在其使用条件的局限性，应用效果不佳[3-5]。射流泵是利用文丘里效应将注入井内的高压动力液的能量传递给井下油、气层产出液的水力排采设备，可通过调整自身结构参数，满足不同工况参数条件下的排水采气作业；目前已规模应用于东胜气田盘活高产水气井产能，但其注入压力高、能耗高的瓶颈问题使得应用效果有待提高，亟需进行工艺优化[6-8]

为了降低水力射流泵工艺注入压力、节约能耗，提升高产水气井举升效率，实现气井连续携液采气、释放储层产能，开展了天然气气体射流泵排水采气工艺试验。利用天然气作为射流介质，深入研究气体射流泵结构，并选取东胜气田高产水气井Q1井进行工艺应用试验，不断摸索规律、优化参数、调整工作制度，从而解决水力射流泵工艺注入压力高、高能耗的核心问题，以期为后续气体射流泵工艺的现场应用提供指导意见，同时进一步高效盘活中低压高产水气井产能。

1技术分析

1.1 工作原理

在高产水气井实际生产中，由于气液滑脱液体不断在井中堆集，当液柱压力接近地层压力时地层停止产气，气井出现水淹。……