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:
May. 24, 1988
Filed:
Sep. 18, 1986
Applicant:
Inventor:
Ernest H Purfurst, Houston, TX (US);
Assignee:
Halliburton Company, Duncan, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
73155 ; 166264 ;
Abstract
A formation tester is set forth. The device utilizes a snorkel extending from the formation tester to obtain a pressure test and collect samples from a formation of interest. The apparatus includes multiple sample storage containers. The sample line is connected to storage containers and also to pretest and post-test drawdown elements which alter the sample line back pressure, thereby cooperating with an equalizing valve to selectively isolate the snorkel from fluid and fluid pressures in the well.