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:
Apr. 17, 2007
Filed:
May. 19, 2003
Pedro R. Segura, Austin, TX (US);
Mark A. Sitka, Richmond, TX (US);
Gregory N. Gilbert, Sugar Land, TX (US);
Preston N. Weintraub, The Woodlands, TX (US);
Tony T. VU, Pearland, TX (US);
John R. Hardin, Jr., Spring, TX (US);
Kristopher V. Sherrill, Humble, TX (US);
David M. Welshans, Damon, TX (US);
James E. Stone, Porter, TX (US);
Pedro R. Segura, Austin, TX (US);
Mark A. Sitka, Richmond, TX (US);
Gregory N. Gilbert, Sugar Land, TX (US);
Preston N. Weintraub, The Woodlands, TX (US);
Tony T. Vu, Pearland, TX (US);
John R. Hardin, Jr., Spring, TX (US);
Kristopher V. Sherrill, Humble, TX (US);
David M. Welshans, Damon, TX (US);
James E. Stone, Porter, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
A formation testing tool is described herein, including a formation probe assembly having an extendable sampling probe surrounded by a cylindrical sleeve. The sleeve is configured to engage a metal skirt having an elastomeric seal pad coupled thereto. The skirt and seal are configured to be field replaceable. The elastomeric pad has a non-planar outer surface which engages a borehole wall in preparation for formation testing. The seal pad may be donut-shaped, having an aperture through the middle of the seal pad. The seal pad and its surface may include numerous different embodiments, including having a curved profile. The seal pad may also include numerous different embodiments of means for coupling the seal pad to the metal skirt. The formation testing tool also includes formation probe assembly anti-rotation means, a deviated non-circular flowbore, and at least one closed hydraulic fluid chamber for balancing fluid pressures.