PHASE BEHAVIOR VARIATION FOR AN OIL SYSTEM IN THE PROCESS OF GAS INJECTION

doi:10.3863/j.issn.1000-2634.2003.02.006

西南石油大学学报(自然科学版) ›› 2003, Vol. 25 ›› Issue (2): 19-21.DOI: 10.3863/j.issn.1000-2634.2003.02.006

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

PHASE BEHAVIOR VARIATION FOR AN OIL SYSTEM IN THE PROCESS OF GAS INJECTION

WANG Zheng-de¹ MEI Hai-yan¹ ZHANG Mao-lin¹ et al

Southwest Petroleum Institute, Nanchong Sichuan 637001, China

Received:2002-06-22 Revised:1900-01-01 Online:2003-04-20 Published:2003-04-20
Contact: WANG Zheng-de

Abstract

Abstract: Miscible flooding and non-miscible flooding for gas injection has been one of the major methods of enhancing oil recover throughout the world. Gas injection will change physical and chemical properties of a system caused by thermodynamic condition variation in the process of gas injection. The research on the phase behavior for the system of gas injection is a main subject of reservoir engineering, which can offer a basis of development design and performance analysis for a reservoir injected by gas. Results show that saturation pressures will greatly enhanced, the bubble lines will be changed considerably and the dew point lines be varied slightly in the process of gas injection for a black oil reservoir.

Key words: gas injection, natural gas, phase state, saturation pressure, black oil

CLC Number:

TE357.4

WANG Zheng-de MEI Hai-yan ZHANG Mao-lin et al. PHASE BEHAVIOR VARIATION FOR AN OIL SYSTEM IN THE PROCESS OF GAS INJECTION[J]. 西南石油大学学报(自然科学版), 2003, 25(2): 19-21.

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PHASE BEHAVIOR VARIATION FOR AN OIL SYSTEM IN THE PROCESS OF GAS INJECTION

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