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:
Jan. 07, 2014
Filed:
Feb. 10, 2011
Mahesha Udipi, Houston, TX (US);
Alfredo Olvera, Houston, TX (US);
Jim Hwang, Houston, TX (US);
Jean Brunjes, Missouri City, TX (US);
Eugene A. Borak, Jr., Tomball, TX (US);
Mahesha Udipi, Houston, TX (US);
Alfredo Olvera, Houston, TX (US);
Jim Hwang, Houston, TX (US);
Jean Brunjes, Missouri City, TX (US);
Eugene A. Borak, Jr., Tomball, TX (US);
Vetco Gray Inc., Houston, TX (US);
Abstract
A reinforced wellhead member for use during fracing operations. The wellhead member is preloaded at a flange section by creating compressive stresses via a ring that interacts with a tightening nut on a bolt. The bolt is rigidly attached to an adapter which may also be modified to create stresses on the flange of the wellhead member. The induced stresses counter the tensile stresses experienced by the flange during fracing operations, allowing a standard wellhead member to be utilized.