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. 30, 1997
Filed:
Nov. 13, 1995
Applicant:
Inventors:
Richard Hodge, Ponca City, OK (US);
William S Halliday, Houston, TX (US);
Thomas Daves, Houston, TX (US);
Thomas Carter, Ponca City, OK (US);
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166301 ; 507260 ; 507267 ; 507910 ; 507940 ;
Abstract
A composition and method for use in freeing differentially stuck pipes is presented, comprising a hydrocarbon, acetic acid and a surfactant. The composition frees stock pipes quickly, thus reducing down-time during the process of drilling a subterranean well.