SHANDONG SAIGAO GROUP CORPORATION
SHANDONG SAIGAO GROUP CORPORATION
Retrievable Drop-in Check Valve

Retrievable Drop-in Check Valve

Retrievable drop-in check valve is an inside blowout control valve. It has a landing sub, which connect the needed position of drill string and put into the well, in order to check valve assembly in place. Retrievable drop-in check valve is a kind of check valve, and it can prevent backflow when well kick, it allows liquid to be injected downward into the circulation well for most of the conventional drilling. This valve can control pressure when drilling and improve, simplify the well control obviously. As long as the check valve is dropped in, it can be in place on the land sub automatically to achieve the purpose of the blowout. In addition, the disassembly of this check valve can save a lot of manpower and material resources compare with the previous drop-in check valve.


Technical Specification of Retrievable Drop-in Check Valve


Model

Valve Assembly OD

Landing Sub

Working Pressure

OAL

Connection

OD

ID

mm (inch)

mm (inch)

mm (inch)

MPa (PSI)

mm (ft)

HFT121

60.5 (2-3/8)

121 (4-3/4)

50.8 (2)

35 〜70

(5,000- 10,000)

776 (2.5)

NC38

HFT127

60.5 (2-3/8)

127 (5)

50.8 (2)

776 (2.5)

NC38

HFT165

73 (2-7/8)

165 (6-1/2)

71.4 (2-13/16)

804 (2.6)

NC50

HFT168

73 (2-7/8)

168 (6 5/8)

71.4(2-13/16)

804 (2.6)

NC50


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Zhongrun Century Center, No 12111,Jingshi Road, Lixia District, Jinan City, Shandong Province. P.R. China