Southwest Petroleum University

Gan Peng

Ping Guo

Zhouhua Wang

Yisheng Hu

Huang Liu

Shuoshi Wang

Hanmin Tu

Limiao Wang

Ruifeng Xu

Disclosed is a method for measuring critical condensate saturation pressure and critical condensate saturation of condensate gas by combining one-dimensional and two-dimensional nuclear magnetic resonance techniques, which solves low measurement precision and complex test method. The present invention detects signal intensity of the hydrogen-containing fluid in a rock core by combining a one-dimensional nuclear magnetic resonance Tspectrum testing technology and a two-dimensional nuclear magnetic resonance T-Tspectrum testing technology, achieves the optimization of an artificial zoning method by an improved difference spectroscopy method to reduce errors, greatly improves condensate signal identification precision, and more quickly and accurately measures the critical condensate saturation pressure and the critical condensate saturation. Therefore, the flow law of condensate oil and gas two-phases in a formation is better studied, a more reasonable development plan is favorably formulated by a gas reservoir, and theoretical guidance is provided for improving condensate recovery ratio.

Method for measuring critical condensate saturation pressure and critical condensate saturation of condensate gas by combining one-dimensional and two-dimensional nuclear magnetic resonance techniques

Growing community of inventors

Chengdu, China

Gan Peng