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:
Dec. 10, 2024
Filed:
Feb. 10, 2023
Southwest Petroleum University, Chengdu, CN;
Ping Guo, Chengdu, CN;
Zheng Gu, Chengdu, CN;
Shuoshi Wang, Chengdu, CN;
Zhouhua Wang, Chengdu, CN;
Qinglong Xu, Chengdu, CN;
Shiyong Hu, Chengdu, CN;
Wenhua Zhao, Chengdu, CN;
Yisheng Hu, Chengdu, CN;
Huang Liu, Chengdu, CN;
Hanmin Tu, Chengdu, CN;
SOUTHWEST PETROLEUM UNIVERSITY, Chengdu, CN;
Abstract
A method for determining a phase-state type and saturation of a fluid by an NMR technology includes putting a core to be measured to an NMR phase-state testing device, injecting a heavy water solution from both ends of a gripper at the same time until the core reaches the formation pressure, and stopping; scanning the core to obtain a two-dimensional NMR map, and determining whether the core contains a gas phase; reducing the temperature of the gripper, and collecting an oil phase volume, a gas phase volume and a water phase volume discharged from the core; purge the pipelines out with nitrogen, collecting a water phase volume and an oil phase volume in the pipelines; performing dry distillation on the core to obtain an oil phase volume and a water phase volume; and obtaining the saturations of various phases according to the fluid volumes of multiple phases in the core.