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.

Date of Patent:
Dec. 17, 2019

Filed:

Jun. 05, 2017
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Ahmad T. Shammari, Khobar, SA;

Hassan A. Hussain, Al Hasa, SA;

Obiomalotaoso L. Isichei, Dhahran, SA;

Bayan A. Momtan, Sammam, SA;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/12 (2006.01); E21B 49/08 (2006.01); E21B 41/00 (2006.01); E21B 44/00 (2006.01);
U.S. Cl.
CPC ...
E21B 43/12 (2013.01); E21B 41/0035 (2013.01); E21B 44/005 (2013.01); E21B 49/087 (2013.01);
Abstract

A process for determining the productivity index of a multilateral completion using data from individual laterals and data from commingled well tests is disclosed. The process includes 1) determining the productivity index for each single lateral by iteratively altering the productivity index until the individual lateral flowrate based on a known reservoir pressure is matched and 2) further determining the productivity index by iteratively altering the productivity index until the commingled flowrate is matched. The productivity index may be used to set wellhead pressures and inline control valve (ICV) settings for production.


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