Hydraulic Jet Pumps for Gas-Well Deliquification

Oct 9, 2026 · 1 min read

Research / Area 4

Hydraulic jet pumps have no moving parts downhole and tolerate sand, high gas–liquid ratio and deep wells, making them an important deliquification method for tight and horizontal gas wells. Cavitation and gas blocking in the throat, however, keep efficiency low, and nozzle/throat design methods for gas wells are lacking.

Concentric dual-tubing jet pump geometry
Concentric dual-tubing jet pump: 3D model, section and pressure distribution along nozzle–suction–throat–diffuser
Jet-pump deliquification performance curves
Jet-pump deliquification performance curves
Gas–liquid CFD of a jet pump
Gas–liquid two-phase CFD fields in a concentric dual-tubing jet pump

The group develops performance models and gas-blocking boundaries for concentric dual-tubing jet pumps, VOF simulations of gas–liquid flow, surrogate-model–based multi-objective optimization of nozzle and throat parameters, and field application analysis (including the Maoping-1 well).

Representative papers

  1. J Zhu, A Li, Y Ji, J Peng, Y Zhang, H Zhu. Optimization of gas-liquid two-phase flow characteristic parameters in a concentric dual-tube hydraulic jet pump. The Chinese Journal of Process Engineering 26 (3), 233-244, 2026.