Title:
METALLIC RING FOR SEALING A DOWNHOLE ROTARY STEERING PISTON
Document Type and Number:
WIPO Patent Application WO/2019/245539
Kind Code:
A8
Abstract:
Rotary steerable drilling systems are subjected to harsh environments including high temperature and pressure. A metallic seal ring prevents or limits erosive wear by limiting the velocity of the fluid that traversers from the high pressure side of the metallic seal ring to the low pressure side of the metallic seal ring to a value that can be sustained by the material of the metallic seal ring. A metallic seal ring is capable of withstand the wear and tear of drilling mud or other fluids used for downhole drilling operations. A metallic seal ring includes a mating configuration that creates a seal as the metallic seal ring is contracted when or a tension is applied when disposed or positioned in the piston bore. The metallic seal ring maintains an adequate seal to protect the components of a pad assembly over the life or specified duration of a downhole drilling operation.
More Like This:
| WO/2011/100966 | METHOD AND DEVICE FOR DIRECTION-CONTROLLED DRILLING |
| WO/2001/048351 | SUBSEA WELL INTERVENTION VESSEL |
| WO/2009/146190 | APPARATUS AND METHOD FOR DRILLING A BOREHOLE |
Inventors:
DOUD BRIAN (US)
DEOLALIKAR NEELESH (US)
ZHANG WEI (US)
DEOLALIKAR NEELESH (US)
ZHANG WEI (US)
Application Number:
PCT/US2018/038336
Publication Date:
February 27, 2020
Filing Date:
June 19, 2018
Export Citation:
Assignee:
HALLIBURTON ENERGY SERVICES INC (US)
International Classes:
E21B7/06; E21B23/12; F16J15/28
Attorney, Agent or Firm:
PENNINGTON, Tammy et al. (US)
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