THE APPLICATION OF GAS BUBBLE-PRESSURE METHOD IN THE STUDY ON RESERVOIR PORE STRUCTURES

doi:10.3863/j.issn.1674-5086.2009.05.005

西南石油大学学报(自然科学版) ›› 2009, Vol. 31 ›› Issue (5): 17-20.DOI: 10.3863/j.issn.1674-5086.2009.05.005

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THE APPLICATION OF GAS BUBBLE-PRESSURE METHOD IN THE STUDY ON RESERVOIR PORE STRUCTURES

XIE Xiao-yong^1，2a TANG Hong-ming^1，2bMENG Ying-feng^1，2a LI Gao^1，2a ZHAO Feng^1，2b

1.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation，Southwest Petroleum University，Chengdu Sichuan 610500，China；2.Southwest Petroleum University：a.School of Petroleum Engineering，b.School of Resource and Environment，Chengdu Sichuan 610500，China

Received:1900-01-01 Revised:1900-01-01 Online:2009-10-20 Published:2009-10-20

Abstract

Abstract:

The conventional methods for testing reservoir pore structure are mercury penetration and cast thin slice analysis.Gas bubble-pressure method is based on physical law of liquid flowing in pore，which can truly reflect the reality of liquid flowing through throats.The results of gas bubble-pressure and mercury penetration is compared with those of mercury in the paper.The tested main pore throat diameter of the latter is 2-4 times larger than the former′s.However，the distribution features of effective throat participating in flow through porous media tested in the former is more correspondent to project needs.It can obviously characterize the differences between effective throat distribution features of rock samples before and after hydration or acidizing，so the results have powerful comparability and high value.Gas bubble-pressure ethod provides a new way to test reservoir pore structures.

Key words: gas bubble-pressure method, mercury penetration methods, reservoir, pore structure, effective throat

CLC Number:

TE122.2

XIE Xiao-yong;a TANG Hong-ming;bMENG Ying-feng;a LI Gao;a ZHAO Feng;b. THE APPLICATION OF GAS BUBBLE-PRESSURE METHOD IN THE STUDY ON RESERVOIR PORE STRUCTURES[J]. 西南石油大学学报(自然科学版), 2009, 31(5): 17-20.

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THE APPLICATION OF GAS BUBBLE-PRESSURE METHOD IN THE STUDY ON RESERVOIR PORE STRUCTURES

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