API 16A Double ram BOP(blowout preventer) Hydraulic operated from China manufacturer - Yancheng Jingcheng Petroleum Machinery Manufacturing Co.,Ltd

API 16A Double ram BOP(blowout preventer) Hydraulic operated

Price:	1.0 USD
Payment Terms:	T/T,L/C
Place of Origin:	Jiangsu, China (Mainland)


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Product Detail

Model No.: Blowout Preventer 101

Production Capacity: 10sets/months

Delivery Date: 50days

Application: Well flow control

Model: Hydraulic operated

Szie: 7 1/16"

Temperature rating: T

Delivery: 40-60 days

Means of Transport: Ocean,Land

Packing: plywood

Usage: Oilfield drilling operation

Working pressure: 5000 psi

Type: Double RAM BOP

Material: AISI4130 forged

Standard: API 16A

Ram BOP with hydraulic control is a key part of well-control equipment. It's used for controlling wellhead pressure during well drilling, workover...

Working Principle

Ram BOP consists of some main parts such as body, side door, cylinder, piston, ram shaft, locking shaft, cylinder head, and ram assembly etc.

Principle of Opening and Closing Operation

When pressure oil of hydraulic pressure system is pumped into the closing cavity of left and right cylinder, it pushes the piston with ram shaft and ram assembly to move to the center realize well sealing. When it pumped into the opening cavity of left and right cylinder, it pushes the piston with ram shaft and ram assembly to move to the center to open the wellhead. The conversion valve of hydraulic pressure system controls the ram switch; Ram switch force is direct ratio with the forced area of piston and the hydraulic pressure on this area.

Principle of Sealing

Ram BOP has 4 sealing parts in order to seal the wellhead effectively. The ram top seal and body seal; sealing between ram front seal and the pipe; sealing between the body and the side door; sealing between ram and the side door. Produce of ram sealing divided into 2 steps. First when closing the ram, ram shaft affected by hydraulic oil pushes ram front seal rubber to press the front part of sealing Second when there is pressure in the well, it pushes the ram front seal from back part of ram to extrude distortion more deeply, at the same time, the ram up against the body seal face, thus forming reliable sealing. This is called well pressure assisting sealing.

Specification

Product Name	7 1/16-5000PSI Double Ram BOP
Vertical Bore	7 1/16
Working Pressure	5000PSI
Top Connection	7 1/16-5000PSI R46 Flange
Bottom Connection	7 1/16-5000PSI R46 Flange
Hydraulic Control Pressure	1200PSI~1500PSI(8.4Mpa~10.5MPa)
Hydraulic Fluid (open)	1.40 gal (5.3L)
Hydraulic Fluid (close)	1.45gal (5.5L)
Hydraulic Connection	1" NPT
Outside Size	53.93″x15.55″x28.46″
Weight	1795 lb

Trouble Shots

Item	Trouble	Cause	Settlement
1	The medium inside well flows out from the clearance between the body and door.	Seal ring between the body and side door is damaged. Connection bolts released between the body and side door. There is dust or damage on the body and side door seal surface.	Change damaged seal ring. Screw up all connection bolts. Remove surface dust and repair damaged parts.
2	Ram movement direction is not conformance with nameplate mark of control valve.	The pipelines between control panel and BOP have been connected wrongly.	Reverse pipes that connect BOP.
3	Hydraulic system is in order, but ram can not closed fully.	There are foreign materials, sand and mud on ram contact ends.	Wash ram and side door.
4	The medium inside well flows into the cylinder and there contains water in cylinder oil.	Piston rod seal ring damaged. Piston rod distortion or surface scratch.	Change damaged piston piston rod seal ring. Repair the damaged piston rod.
5	BOP hydraulic part cannot hold pressure.	BOP cylinder, piston, piston rod, seal ring damaged, seal surface scratched.	Replace all damaged seal rings and repair seal surface or change it with the new parts.
6	There is leakage on side door connections.	Seal surface scratched, seal ring worn.	Repair seal surface and replace seal ring.
7	It cannot hold pressure when ram closed.	Ram seal rubber damaged. Upper seal surface of the ram chamber damaged. The ram size is not in accordance with the drilling tool in the well.	Change ram seal rubber. Repair seal surface. Change the relevant size ram.
8	Control pipe is in order, but ram cannot he opened with hydraulic pressure.	The locking shaft isn't unlocked. Ram plugged with sand and mud. Piston seal ring damaged.	Unlock locking shaft. If damaged, change it. Remove sand and mud. Increase control pressure. Change piston seal ring.