 BOP stack Annular blowout preventer The design and manufacture of Annular BOP is according to API Spec 16A standard. ● Packing element is spherical or tapered type with massive storage volume, low operation pressure and excellent sealing function; ● Bonnet is hemispherical-shaped, so there is no stress concentration on bonnet whenever bearing the pressure. ● Bonnet and body are connected by a wedge block, so the pressure is evenly distributed; ● Packing element is interchangeable with similar overseas products; ● Use observation hole to check the life span of the packing element; ● Piston is set in low position to have a shorter moving distance; Use wear ring on piston.  Ram blowout preventer S - Shaped Ram BOP The design and manufacture of S-shaped Ram BOP is according to API Spec 16Astandard. S-shaped Ram BOP can be equipped with rams of various sizes. Structure Features: ● Body and side door are made of alloy steel; ● Use seal rings assembly to improve sealing of side door; ● Use floating type ram. Front ram rubber is separated from top ram rubber, making it more reliable in sealing and easier to change; ● Use buried oil way inside body. Loading hinge is separated from hydraulic hinge; ● Use arc-shaped body chamber with four round corners as transition section to reduce stress peak value whenever bearing the pressure; ● Compact hinge structure makes it easy to assemble and disassemble; ● Ram cavity can be fitted with ram assembly of same type BOP made abroad; ● Flange grooves are stainless steel lined.  U - Shaped Ram BOP STRUCTURE FEATURES ● The pressure-bearing components are forged, so it has better strength and impact toughness; ● Floating sealing is applied to the cylinder cover and the open/close of the cover is realized by hydraulic power, so it is quick and convenient for changing rams; ● The auxiliary oil cylinder affords a smaller volume with same function; ● The ram rubber has massive storage volume, and it adopts self-contained sealing; ● The standard configuration includes a manual locking device, which ensures the ram is closed tightly in case there is a hydraulic pressure loss; ● Both the manual and hydraulic locking device and the auxiliary oil cylinder can be installed flexibly into different positions according to customers’ requirements, and the installation positions can be changed easily.  Coiled Tubing BOP Coiled Tubing BOP is a key part in well logging devices, and it is mainly used to control pressure at the wellhead during the process of well logging, well workover and production test, so as to effectively avoid blowout andto realize safe production. A Coiled Tubing BOP is composed of quad ram BOP and Stripper Assembly. A Quad Ram BOP Can Be Used To Perform The Following Operation When the tubing exists in the well, with the help of packing of certain size, the BOP can close the circular space between the bore and pipe string and prevent the fluid in the well from overflowing. When there is no string in the well, the BOP can completely close the well head with blind ram. When in emergency, a slip ram may be used to fasten the tubing, and then a shear ram may be used to cut off the tubing in the well, then a blind ram can be used to seal the wellhead completely. When in emergency, the tubing in the well goes up or down, a slip ram may be used to lock the tubing to avoid any accident. When the well is closed, with the help of kill manifolds and chock manifolds connected to the spool and side outlet on the body, the BOP can realize some special operations such as throtting and relief.  Specification  Stipper Assembly Can Be Used To Perform The Following Operation When there is a tubing in the well, with the help of packing of certain size, the BOP can close the annular space between the bore and tubing and prevent the liquid in the well from kicking. When the tubing in the well moves up or down, tuning the pressure at the stripper control oil line can protect the surface of liquid lubrication in the well and to prevent the liquid in the well from kicking.  Specification  Diverter Diverter is designed and manufactured according to SY/T 5127-2002《Wellhead equipment & Christmas tree》, and ASME B16.47a-1998 standard. Feature: ● Body and upper housing are connected by a claw chuck; ● Compact structure realizes high bearing capacity. ● Easy to assemble and disassemble and convenient for wellsite operation; ● Use lip seal rings in dynamic seal section to realize self-sealing, reduce abrasion of sealing parts and make sealing more reliable. ● Use high quality packing element and sealing parts. Use tapered type packing element, which is made of NBR. It has massive storage volume and excellent sealing function; ● Use observation hole to check the life span of the packing element; BOP control system The control systems for surface-mounted BOP stacks are used to open and close Blowout Preventer and Choke Valve while drilling oil and gas well. Its main function is to prevent blowout accidents in drilling operation, so it is an indispensable equipment to ensure safe operation in oil fields. Our company has been the Control System. for Surface-mounted BOP stacks supplier to domestic oil fields since 1974, during this period we imported advanced technology from KOOMEYING Company of the USA. The control system for surface-mounted BOP stacks mainly consists of Remote Control Panel, Driller Control Panel, Air Cable, Pipe Racks High-pressure Pipe and Protection House. Its design and manufacture follows SY/T5053.2 standard, and refers to API Spec 16D specifications. Our company has been granted the manufacture license by the Head Office of National Quality Supervision Test and Quarantine. 
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