The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 02, 2025
Filed:
Apr. 09, 2025
Southwest Petroleum University, Chengdu, CN;
Shuoshi Wang, Chengdu, CN;
Limiao Wang, Chengdu, CN;
Ping Guo, Chengdu, CN;
Zhouhua Wang, Chengdu, CN;
Ruifeng Xu, Chengdu, CN;
Gan Peng, Chengdu, CN;
Yisheng Hu, Chengdu, CN;
Huang Liu, Chengdu, CN;
Hanmin Tu, Chengdu, CN;
Southwest Petroleum University, Chengdu, CN;
Abstract
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.