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:
Feb. 10, 2015
Filed:
Dec. 30, 2011
Danny R. Wilkins, Tyler, TX (US);
Thomas H. Holtkamp, Dickinson, TX (US);
Jerry D. Smith, Spring, TX (US);
Danny R. Wilkins, Tyler, TX (US);
Thomas H. Holtkamp, Dickinson, TX (US);
Jerry D. Smith, Spring, TX (US);
GE Oil & Gas Pressure Control LP, Houston, TX (US);
Abstract
A method of drilling and fracturing a well includes installing a drilling/frac adapter on a lower wellhead housing. The drilling/frac adapter has a higher internal pressure rating than the lower wellhead housing. The operator drills through the drilling/frac adapter to a desired depth, then runs and cements a casing string in the well. A lower packoff is installed in an annulus between the casing hanger and the lower wellhead housing and an upper packoff is set in an annulus between the drilling/frac adapter and the casing hanger. Frac fluid is pumped through the frac tree into the casing string at a higher pressure than the pressure rating of the lower housing but less than the pressure rating of the drilling/frac adapter. Then, the upper packoff and the drilling/frac adapter are removed from the lower housing and installing an upper wellhead housing on the lower wellhead housing.