Chunyang Liu

Liaoning University

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Lili Bai

Harbin Engineering University

Siqi Li

Northeast Petroleum University

Wenfeng Sun

Shanghai Technical Institute of Electronics & Information

Ying Wang

University of Shanghai for Science and Technology

Wěi Li

Zhongshan Hospital

Wei Li

Nanjing Medical University

Ying Wang

Harbin Institute of Technology

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Northeast Petroleum University

Shanghai Technical Institute of Electronics & Information

Chinese Academy of Sciences

Harbin Institute of Technology

Daqing Oilfield General Hospital

Harbin Engineering University

Fifth Tianjin Central Hospital

Inner Mongolia Medical University

Taiyuan University of Technology

Wenzhou Central Hospital

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A practical method to construct capillary pressure curves of reservoir using NMR logging date

International Journal of Oil Gas and Coal Technology (2019)

Wenfeng Sun Chunyang Liu Ying Wang Lili Bai Wei Li

A new method to construct the pseudo-capillary pressure curve using nuclear magnetic resonance (NMR) logging data is established. In this method, the displacement pressure can be predicted using the maximum relaxation time of T2 spectrum of nuclear magnetic resonance (NMR) logging. Next, the effective porosity and density of rock, calculated from logging data, are used to predict the maximum mercury saturation. Then the mercury saturation at displacement pressure point and threshold pressure point can be estimated according to empirical data. Thus, the four important points on the capillary pressure curve can be obtained, namely zero point, displacement pressure, threshold pressure and end point. Then, referring to the 4 pressure points above, the pseudo-capillary pressure curve is constructed in two sections with the dividing point of threshold pressure. The method is convenient especially for the evaluation of deep and complex formations where the coring is difficult. [Received: July 12, 2017; Accepted: December 15, 2017]

Capillary pressure

Coring

Saturation (graph theory)

10.1504/ijogct.2019.103507

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Citations (2)

A practical method to construct capillary pressure curves of reservoir using NMR logging date

International Journal of Oil Gas and Coal Technology (2019)

Wenfeng Sun Chunyang Liu Ying Wang Lili Bai Wěi Li

Capillary pressure

Saturation (graph theory)

Coring

10.1504/ijogct.2019.10025154

Cite

Citations (0)