logo

For the Inventor, By the Inventor

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.:

US 10816531 B1

PDFFull Text
Expired
Date of Patent:
Oct. 27, 2020

Filed:

May. 27, 2020

Method for calculating daily gas production rate of methane hydrate deposit based on inflow performance relationship formulas

Applicant:

China University of Petroleum (East China), Qingdao, Shandong, CN;

Inventors:

Jian Hou, Shandong, CN;

Nu Lu, Shandong, CN;

Yongge Liu, Shandong, CN;

Yajie Bai, Shandong, CN;

Yunkai Ji, Shandong, CN;

Ermeng Zhao, Shandong, CN;

Assignee:

China University of Petroleum (East China), , CN;

Attorney:

Maine Cernota & Rardin

Primary Examiner:

Ricky Ngon

Int. Cl.
CPC ...
G01N 33/24 (2006.01); E21B 49/00 (2006.01); E21B 41/00 (2006.01); E21B 47/06 (2012.01); E21B 47/107 (2012.01); E21B 49/08 (2006.01);
U.S. Cl.
CPC ...
G01N 33/24 (2013.01); E21B 41/0099 (2020.05); E21B 47/06 (2013.01); E21B 47/107 (2020.05); E21B 49/00 (2013.01); E21B 49/0875 (2020.05);
Abstract

A daily gas production rate of a methane hydrate deposit is calculated based on inflow performance relationship formulas. Step 1 determines the production stage, including the gas production rate trend of a production test and selecting an inflow performance relationship formula corresponding to the stage. Step 2 calculates basic coefficient terms related to energy conversion in the inflow performance relationship formula. Step 3 obtains other coefficient terms related to production in the inflow performance relationship formula. Step 4 predicts the gas production rate under other production pressure differences. Staged inflow performance relationship formulas characterize the complex methane hydrate deposit production performance. Gas production rate and deposit pressure under a large pressure differences are predicted through simple production tests under a small pressure difference, providing a basis for production design of the hydrate deposit and preventing accidents that may be caused by direct production under a large pressure difference.

Find Patent Forward Citations

Hou, Jian. (2020). Method for calculating daily gas production rate of methane hydrate deposit based on inflow performance relationship formulas (U.S. Patent No. 10816531). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10816531

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…