Api16c High Quality Ram Bop - Chinaprice: contact company for price
control device. It is characterized by
flexible switch, easy operation, safety in use and simple
maintenance, etc. Our Bops are designed as
per the API 16A Specification, with good quality and best
competitive price. Two types of Bop are
offered by JIELIN: Annular Bop and Ram Bop.
Ram BOP is an important equipment widely used in onshore and
offshore drilling. Ram BOP, such as
sing le 「 am BOP, double ram BOP, are mainly hydraulic
operated or manual operated. Ram BOP is
resistant to high- pressure characteristics is used to
prevent blowouts safety oilfield sealing wellhead.
Annular blowout preventer is manipulated by hydraulic
control system. When it is shut off, high pressure oil flows
into piston underside closed cavity through the oil port in
central shell, to push piston upwards, and the conical
surface of piston squeezes rubber core. Due to the
restrictions of head cover, rubber core can’t go upwards
but is pushed towards the center of wellhead until it
enclasps drilling tool or enclose wellhead totally to shut
the well. When well needs to be opened, manipulate the
reversing valve of hydraulic control system, so that high
pressure oil should flow into the open cavity on top of
piston through the oil mouth on shell, to push piston
downwards and decompress closed cavity, in which case, the
extrusion force on the conical surface of rubber core is
removed, and the rubber core is reset gradually with the
action of its own elastic force to open wellhead.
It’s feasible to control wellhead with annular preventer
firstly when blowout occurs in a well where there are
drilling tools, but try not to seal it for long, because
rubber core is fragile and there is no locking device.
Don’t close empty well with it in non- special cases.
It’s necessary to use a drilling tool with an 18- degree
slope when annular preventer is used for snubbing tripping
operation. Tripping speed should be slow when passing
through joints, and all the rubber sleeves of the drilling
tool should be uninstalled.
When annular preventer is in an off state and shut- in
pressure is below 5Mpa, it’s feasible to move the drilling
tool up and down, but don’t rotate it.
It’s necessary to check whether the well is opened
completely after it is opened every time lest rubber core be
It’s necessary to wash the inner cavity out to keep the
switch flexible after well cementation and leaking stoppage,
Be sure to pay special attention to sealing backing ring and
steel ring groove when installing or uninstalling annular
preventer, which cannot be cracked up or scratched.
After entering the target layer, try to shut in the well
with drilling tool after tripping each time, to check how
well the rubber core seal the well. It should be replaced at
once if not up to standard.
Make regular pressure test on the annular preventer
according to relevant standards.
- Phone: 86051586118776
- Address: No.25,Fourth Road,Jianhu Private Industrial Park, Yancheng, China
- Website: http://www.jelin.com.cn/
Published date: May 4, 2015 -
- Business Description: Jianhu Jielin Petrochemical Machinery Co., Ltd. is located in Jianhu Industrial Park, , Jiangsu Province, known as a land flowing with milk and honey. It is a modern large sized enterprise specialized in researching and developing, manufacturing and selling various oilfield machines and spare parts. Our company has been authorized by China Classification Society for application of ship products and accessories as well as certificates of API 6A, 16A and 16C, etc. We mainly produces API 6A high and middle pressure valves, with the technical performance being that nominal working pressure is PN2.5 105MPa and nominal diameter is DN3 1000mm; in addition, our company also manufactures API 6A wellhead equipment for oil (gas) extraction, choke and kill manifold, mud manifold, drilling accessories and blowout preventer, etc.
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