DECLINE ANALYSIS OF GAS WELL IN EDGE WATERDRIVE GAS RESERVOIRS

doi:10.3863/j.issn.1000-2634.2001.02.010

西南石油大学学报(自然科学版) ›› 2001, Vol. 23 ›› Issue (2): 37-39.DOI: 10.3863/j.issn.1000-2634.2001.02.010

• 石油工程 • Previous Articles Next Articles

DECLINE ANALYSIS OF GAS WELL IN EDGE WATERDRIVE GAS RESERVOIRS

LI Xiao- ping¹ ZHAO Bi-rong¹ YANG Lei²

Southwest Petroleum Inst , China

Received:2000-09-01 Revised:1900-01-01 Online:2001-04-20 Published:2001-04-20
Contact: LI Xiao-ping

Abstract

Abstract: The deliverability of gas well is affected by the magnitude of aquifer energy in edge water-drive gas reservoirs, so it is of real significance to study the effect of aquifer energy on the production of gas well. In this paper, the magnitude of edge-water energy is expressed by the aquifer influx intensity, which is
defined as the ratio of aquifer influx to well rate. The fluids flow mathematical model was set up by taking account of edge water-drive while the bottomhole pressure is constant. After solving the mathematical model, the decline curve of gas well in edge water-drive gas reservoir was plotted, based on which we
studied the effect of both edge water-drive intensity and gas water mobility ratio on the decline curve. The results showed that the well deliverability is affected by both water drive and gas-water mobility ratio. The theory presented in this paper can be used to forecast the production of gas well in edge water-drive gas reservoir.

Key words: edge water-drive, gas reservoir, gas well Production forecast, gas-water mobility ratio

CLC Number:

TE33

LI Xiao- ping ZHAO Bi-rong YANG Lei. DECLINE ANALYSIS OF GAS WELL IN EDGE WATERDRIVE GAS RESERVOIRS[J]. 西南石油大学学报(自然科学版), 2001, 23(2): 37-39.

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DECLINE ANALYSIS OF GAS WELL IN EDGE WATERDRIVE GAS RESERVOIRS

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