Application of Empirical Formula for Pseudo-Pressure Calculation to Cai-31 Gas Reservoir in Cainan Oilfield

Xinjiang Petroleum Geology ›› 2011, Vol. 32 ›› Issue (4): 421-423.

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Application of Empirical Formula for Pseudo-Pressure Calculation to Cai-31 Gas Reservoir in Cainan Oilfield

CHEN Yong¹, CHEN Chen¹, CAO Jian¹, LUO Gang²

1. Xinjiang Zhundong Petroleum Technique Co. Ltd., Fukang, Xinjiang 831511, China;
2. Research Institute of Exploration and Development, Xinjang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China

Received:2010-11-30 Online:2011-08-01 Published:2020-08-19

Abstract

Abstract: In accurate calculation of gas viscosity and compressibility factor z, an empirical formula for the pseudo-pressure calculation of real gas at a constant temperature is presented, and the converted curves from pressure to pseudo-pressure and the single well productivity equation for deliverability test are given. The case study in Cai-31 gas reservoir shows that its gas well performance prediction by these formula and equation is better in effectiveness.

Key words: gas field, real gas, pseudo pressure, empirical formula

CLC Number:

TE319

CHEN Yong, CHEN Chen, CAO Jian, LUO Gang. Application of Empirical Formula for Pseudo-Pressure Calculation to Cai-31 Gas Reservoir in Cainan Oilfield[J]. Xinjiang Petroleum Geology, 2011, 32(4): 421-423.

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Application of Empirical Formula for Pseudo-Pressure Calculation to Cai-31 Gas Reservoir in Cainan Oilfield

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