THEORY AND EXPERIMENT RESEARCH ON THE LIQUID CONTINUOUS REMOVAL OF HORIZONTAL GAS WELL

doi:10.3863/j.issn.1674-5086.2010.03.023

西南石油大学学报(自然科学版) ›› 2010, Vol. 32 ›› Issue (3): 122-126.DOI: 10.3863/j.issn.1674-5086.2010.03.023

• 石油与天然气工程 • Previous Articles Next Articles

THEORY AND EXPERIMENT RESEARCH ON THE LIQUID CONTINUOUS REMOVAL OF HORIZONTAL GAS WELL

XIAO Gao-mian LI Ying-chuan YU Xin

State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation，Southwest Petroleum University，Chengdu Sichuan 610500，China

Received:1900-01-01 Revised:1900-01-01 Online:2010-06-20 Published:2010-06-20

Abstract

Abstract: In horizontal gas well，the gravity of liquid will change with the change of inclination angle of wellbore，which causes the change of gas-liquid two-phase flow pattern.The liquid occurs mainly with the form of droplet and film in gas wellbores，so there are two theories that can explain the liquid loading：the liquid droplet model and the liquid film model.Based on this two liquid continuous removal theories，and with the inclination effects taken into account，a computing formula that computes the critical flow rate of liquid continuous removal in horizontal gas well is proposed based on the force analysis of liquid droplet and film.The experiment facilities are also made to study the liquid continuous removal in horizontal gas well.The situation of gas-water two-phase moving and the change of flow pattern are observed.Experiment results show that the liquid removal is mainly with the form of liquid film in horizontal well section.In vertical well section，more droplets will be yielded in well head，so the liquid droplet model is also applicable in predicting the liquid continuous removal critical flow rate of horizontal gas well.

Key words: horizontal well, continuous removal liquid, critical flow rate, liquid droplet, liquid film

CLC Number:

TE355.6

XIAO Gao-mian LI Ying-chuan YU Xin. THEORY AND EXPERIMENT RESEARCH ON THE LIQUID CONTINUOUS REMOVAL OF HORIZONTAL GAS WELL[J]. 西南石油大学学报(自然科学版), 2010, 32(3): 122-126.

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THEORY AND EXPERIMENT RESEARCH ON THE LIQUID CONTINUOUS REMOVAL OF HORIZONTAL GAS WELL

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