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:
Jun. 07, 1988
Filed:
Mar. 24, 1986
Robert F Shelley, Littleton, CO (US);
Halliburton Company, , DE (US);
Abstract
A fracturing treatment schedule, including several phases of fracturing fluid quantities and corresponding concentations, is designed within maximum constraints imposed by a job pump time and a critical proppant concentration which are derived in response to a monitored pressure versus time test in the well. Intermediate factors used in quantifying the job pump time and the critical proppant concentration are derived from emiprically created correlations to a particular parameter derived from the pressure versus time graph. The parameter is specifically defined as a pump-in test leak-off factor corresponding to the time in minutes for the monitored pressure to decrease a predetermined amount from the pressure level existing at a predetermined time after the well has been shut-in during the test.