[12] Patent
[11] Patent No.:GC0007579  
[45] Date of Publishing the Grant of the Patent: 30/Apr /2018                48/2018  
Number of the Decision to Grant the Patent:2018/126012
Date of the Decision to Grant the Patent:15/Apr/2018

[21] Application No.:GC 2014-28369

[22] Filing Date:23/11/2014

[30] Priority:

[33] State [32] Priority date [31] Priority No.
PCT
27/11/2013
PCT/US2013/072284

[72] Inventors:1- BULLOCK, Raymond RONALDŲŒ2- HALL, Lee J.

[73] Owner: Halliburton Energy Services, Inc., 3000 N. Sam Houston Parkway E., 77032-3219 Texas , Houston, USA

[74] Agent: Saba & Co. T.M.P

  

 

  

[51]IPC:
Int. Cl.: E21B 19/00, 3/02, 33/00 (2006.01)

[56] Cited Documents:

-US 6789634 B1 (DENTON, ROBERT) 14 September 2004
-US 20090101351 A1 (HANNEGAN, DON M) 23 April 2009
-US 7571774 B2 (SHUSTER et al.) 11 August 2009
-US 5409240 A (BALLARD, MICHAEL J.) 25 April 1995
-US 5794516 A (WOLFER et al.) 18 August 1998
 
Examiner: Eng. Mohammed A. AlShamrani

[54] SELF-LUBRICATING SEAL ELEMENT FOR ROTATING CONTROL DEVICE
[57] Abstract: Methods for making and using a seal element for a rotating control device used in rotary drilling systems are disclosed. In an example embodiment, the seal element has a bore, a base region, and a nose region. The method comprises providing a mold for the seal element for the rotating control device, adding at least one self-lubricating component to a liquid elastomer, placing the liquid elastomer material having self-lubricating component into the mold, heating the combined elastomer and self-lubricating component in the mold, forming a seal element having a bore, wherein a mixture of the self-lubricating component and the liquid elastomer is adjacent to at least an inner circumferential surface of the longitudinal bore of the seal element.
No. of claims: 28     No. of figures: 3


 

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