New Method for Absolute Open Flow of Gas Wells after Fracturing

Xinjiang Petroleum Geology ›› 2005, Vol. 26 ›› Issue (5): 554-556.

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New Method for Absolute Open Flow of Gas Wells after Fracturing

LUO Tian-yu¹, GUO Jian-chun¹, ZHAO Jin-zhou¹, CHEN Chao-gang¹, YU Xian-you²

1. Southwest Petroleum Institute, Chengdu, Sichuan 610500, China;
2. Department of Exploration, Tanm Oilfield Company, PetroChina,Korla, Xinjiang 841000, China)Abstrnct: Based on the percolation theory of gas reservoirs after fracturing, considering the meaning and its infuence factor of cofficient“a", this paper suggests that taking ceofficient“a” as a conslant for gas well in some area with conventional radial flowing is reasonable.It mostly depends on the average terrestrial stress and permeability. However, for gas well after fracturing. the meaning of coeficient “x”is quite different for its tight relations to dimensionless conductivity of hydraulic fractures. W ithout considering this factor's influence, greater errors will occur. Taking Changqing gas field as an example, the corelation of value of“a” with the dimensionless conductivity is simulated. This method presents a new way for calculation of absolute open flow in gas wells after fracturing.;

Received:2005-01-11 Online:2005-10-01 Published:2020-11-23

Abstract

Abstract: Based on the percolation theory of gas reservoirs after fracturing, considering the meaning and its infuence factor of cofficient“a”, this paper suggests that taking ceofficient“a” as a conslant for gas well in some area with conventional radial flowing is reasonable.It mostly depends on the average terrestrial stress and permeability. However, for gas well after fracturing. the meaning of coeficient “x”is quite different for its tight relations to dimensionless conductivity of hydraulic fractures. W ithout considering this factor's influence, greater errors will occur. Taking Changqing gas field as an example, the corelation of value of“a” with the dimensionless conductivity is simulated. This method presents a new way for calculation of absolute open flow in gas wells after fracturing.

Key words: fracturing, gas well, fracture conductivity, absolute open flow

CLC Number:

TE312

LUO Tian-yu, GUO Jian-chun, ZHAO Jin-zhou, CHEN Chao-gang, YU Xian-you. New Method for Absolute Open Flow of Gas Wells after Fracturing[J]. Xinjiang Petroleum Geology, 2005, 26(5): 554-556.

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New Method for Absolute Open Flow of Gas Wells after Fracturing

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