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Patent Searching and Data


Title:
GAS LIFT VALVE
Document Type and Number:
WIPO Patent Application WO/2021/016357
Kind Code:
A3
Abstract:
A valve includes a seat, a ball, a stem, and a spring. The ball is separate from the stem. In a closed position, the ball seals against the seat. The spring biases the steam against the ball and the ball against the seat in the closed position. When pressure is applied to the valve, the spring compresses and the stem and ball move away from the seat, opening the valve. The ball can freely rotate or pivot relative to the seat such that the ball has multiple possible sealing surfaces to engage the seat. The valve can be used in a gas lift system.

Inventors:
KEYS MATTHEW (US)
VALENZUELA CHRISTOPHER (US)
ROGERS KEVIN (US)
Application Number:
US2020/043083
Publication Date:
March 04, 2021
Filing Date:
July 22, 2020
Export Citation:
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Assignee:
SCHLUMBERGER TECHNOLOGY CORP (US)
SCHLUMBER CANADA LTD (CA)
SCHLUMBERGER SERVICES PETROL (FR)
SCHLUMBERGER TECHNOLOGY BV (NL)
International Classes:
E21B21/10; E21B34/08; F16K15/02; F16K17/02
Foreign References:
RU2467158C12012-11-20
GB1379455A1975-01-02
US4099583A1978-07-11
RU2641146C22018-01-16
US20050217730A12005-10-06
Attorney, Agent or Firm:
BROWN, Allyson et al. (US)
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