BOP, BOPS, Annular BOP, Hydril BOP, Shaffer BOP, Annular Blowout Preventer-Jereh Drilltech

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Annular Blowout Preventer (Annular BOP)
Annular Blowout Preventer (Annular BOP) is important equipment widely used in onshore and offshore drilling. Jereh provides three types of annular BOP: bolted-cover, wedged-cover, latched-cover type.
All types of annular BOP are strictly manufactured as per API Spec 16A, and can be used to replace Shaffer annular BOP or Hydril annular BOP.

Annular BOP Sizes and Models

Annular BOP Sizes and Models
Working Pressure(Psi)	Bore (in)
	7-1/16	11	13-5/8	20-3/4	21-1/4
10,000
5,000
3,000
2,000


Bolted-Cover Annular BOP	Wedged-Cover Annular BOP	Latched-Cover Annular BOP

Technical Specifications of some Annular BOPs

Annular BOP Model		JD-FH28-21		JD-FH35-21		JD-FH18-35		JD-FH28-35		JD-FH35-35
Bore Dia.	mm	280		346		180		280		346
	in	11		13-5/8		7		11		13-5/8
Rated Working Pressure	MPa	21		21		35		35		35
	Psi	3,000		3,000		5,000		5,000		5,000
Shell Testing Pressure	MPa	42		42		70		70		70
	Psi	6000		6,000		10,000		10,000		10,000
Recommended Hyd. Pressure	MPa	8.4~10.5		/		/		/		/
	Psi	1,200-1,500		/		/		/		/
Liters to Open	L	33		66		15		57		66
	Us.gal	8.68		17		4		15		17
Liters to Close	L	48		90		20		72		90
	Us.gal	12.6		24		5		19		24
Inlet and Outlet Size of Control Pipeline	NPT 1	NPT 1		NPT 1		NPT 1		NPT 1		NPT 1
Working Temperature (^oC)	-29~121
Media	Crude oil, natural gas & drilling fluid containing H₂S
Weight	kg	3,272	5,352		1,444		4,328		6,384
	lbs	9340	11,800		3,184		9,522		14,015
Dimensions(O.D.×H)	mm	1,032×930	1,245×1090		745×788		1,135×1065		1,271×1220
	in	45×42	49×43		29×31		45×42		50×48

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