Wellhead Control EQP

Product Detail

Description

Structual Feature
●  Pressurized components are forging matierals, having good strength and impact toughness, avoid the forging default.
●  Middle flange uses combined seal, its switch is operated by hydraulic pressure, easy to change the ram.
●  Equipped with auxiliary oil cylinder, compared with the traditional shear ram BOP, it has the function, smaller volume.
●  Ram rubber is abundant, and use self-contained seal.
●  Manual locking device belongs to the standard configuration, In the event of hydraulic loss, it can ensure that ram remains closed.
●  Manual and hydraulic locking device and auxiliary oil cylinder can be equiped according to customer's requirements flexibly, and easy to interchange.
●  The internal shell of BOP resistant to low temperature can process pipeline, to make the steam flow inside the BOP, radiat heat. (for costumer’s option).
●  The internal part of BOP resistant to high sulfer which contact the well liquid has Surfaced high nickel base alloy, which can achieve the highest levels of resistance to H2S and CO2.

Ram Assembly
● Pipe Ram


1. Top seal rubber 2. Ram body 3. Front seal rubber
U type Ram structure skech

Shear Ram
Shear ram can cut pipe the well, blindly close the wellhead, and also used as blind ram when there is no pipe in the well. The installation of shear ram is the same with the original ram.
● In the normal condition used as blind ram, in case of emergency, used as shear ram.
● Shear damper can be repeatedly cut pipe and not damage the blade, The weared the blade can be reused after the repair. Shenkai produces the shear ram with shear life in more than five times, Allowed to replace the sealing rubber.
● The ordinary ram blade is integrated with the ram body.
● The ram blade of BOP resistant to high sulfer is separated with the ram body, which is easy to change blade after blade damaged, and make the ram body be able to repeated use.
● The contact sealing surface between top seal of shear ram and blade is large, which effectively reduce the pressure on the rubber sealing surface, and prolong its life.


1. Down shear ram 2. Set srew 3. Left seal 4. Up blade 5. Top seal rubber 6. Up shear ram body 7. Blade seal 8. Set screw 9. Right seal 10. Down blade	1. Down shear ram body 2. Left seal rubber 3. Up shear ram body 4. Top seal rubber 5. Right seal rubber 6. Blade seal
Shear Ram Assembly Structure of U type Ram BOP resistant to high sulfer	Shear Ram Assembly Structure of U type Ram BOP

Variable Ram
Variable ram can be used to seal different diameter of pipe string. Variable ram is composed of variable ram, top seal, variable front seal. The installation of variable ram in the BOP is in the same as the common ram, don't need to change any part of the BOP.


1. Variable Ram rubber 2. Ram body 3. Top seal rubber
Variable Ram Assembly Structure of U type Ram BOP

Structural Features

Technical Parameter

U Ram BOP Specification&Model

Operating pressure （psi）	Bore（in）
Operating pressure （psi）	180-7 1/16	230-9	280-11	350-13 5/8	430-16 3/4	480-18 3/4	530-20 3/4	540-21 1/4	680-26 3/4
140-20000			U
105-15000	U	U	U	U
70-10000	U	U	U	U		U		U
35-5000	U	U	U	U	U	U		U
21-3000	U	U	U	U	U		U		U
14-2000								U

Note：S Ram BOP Specification&Model

U represents U type ram BOP

Specification&Model		Main Bore mm(in)	Working Pressure MPa(psi)	Oil quantity for opening （Single Cylinder）	Oil quantity for closing（Single Cylinder）	Ram Type	Ram Size (in)	Dimension mm				weight kg		Recommended BOP code
								length	width	height		single	double
								length	width	single	double	single	double
180(71/16 in)series	FZ18-352FZ18-35	180(71/16)	35	4.6	4.6	U	maximum5 1/2	2477（3273）	550	736	1116	1870	3586	C11.002 C11.00
	FZ18-702FZ18-70	180(71/16)	70	4.6	4.6	U	maximum5 1/2	2487 （3363）	550	806	1216	2190	4095	C20.002 C20.00
	FZ18-1052FZ18-105	180(71/16)	105	4.6	4.6	U	maximum5 1/2	2477（3273）	550	832	1242	2215	4066	C08.002 C08.00
280(11in)series	FZ28-352FZ28-35	280-11	35	10.6	10.8	U	maximum8 5/8	3105 (4165)	650	898	1380	3775	6915	C06.002 C06.00
	FZ28-702FZ28-70	280-11	70	10.6	10.8	U	maximum8 5/8	3035(4065)	660	950	1430	3900	7115	C09.002 C09.00
	FZ28-1052FZ28-105	280-11	105	10.9	11.1	U	maximum7 5/8	3035(4396)	820	1205	1840	6660	11750	C01.002 C01.00
	FZ28-1402FZ28-140	280-11	140	30.1	26.6	U	maximum6 5/8	3890(5104)	1050	1470	2200	9525	16933	C10.002 C10.00
346(135/8 in)series	FZ35-352FZ35-35	346(135/8)	35	21	22	U	maximum10 3/4	3647(4833)	720	928	1501	5150	9750	C21.002 C21.00
	FZ35-702FZ35-70	346(135/8)	70	21	22	U	maximum10 3/4	3707(4893)	745	1115	1720	6020	10940	C17.002 C17.00
	FZ35-1052FZ35-105	346(135/8)	105	22.8	23.7	U	maximum10 3/4	3957(5319)	850	1340	2076	9310	16210	C16.002 C16.00
540(211/4 in)series	FZ54-142FZ54-14	540(211/4)	14	16.3	17.4	U	maximum 16	4120(5800)	1000	944	1638	7450	14420	C25.002 C25.00
540(211/4 in)series	FZ54-352FZ54-35	540(211/4)	35	51	56	U	maximum16	4884(6364)	1080	1300	2100	13720	26500	C27.002 C27.00
540(211/4 in)series	FZ54-702FZ54-70	540(211/4)	70	51	56	U	maximum16	4884(6364)	1200	1742	2542	15718	29773	C28.002 C28.00
680(263/4)	FZ68-212FZ68-21	680(263/4)	21	36	37	U	maximum20	5305(6646)	1280	1214	1924	13300	24800	C24.002 C24.00
Note 1. BOP Testing pressure is 1.5 times of standard pressure
2. Operating pressure is from 8.4Mpa to 10.5Mpa

U Type Shear Ram Operating specification

BOP Type	BOP model	Recommended BOP code	Cylinder Type	Specification of drill pipe
U	（2）FZ28-35	（2）C06.00	Normal cylinder
	（2）FZ28-35	（2）C06.00	Cylinder with tandem booster	5 1/2" 24.7lb/ft G-105 PSL-3
	（2）FZ28-105	（2）C01.00	Normal cylinder
	（2）FZ28-105	（2）C01.00	Cylinder with tandem booster	5 1/2" 24.7lb/ft G-105 PSL-3
	（2）FZ 35-35	（2）C21.00	Normal cylinder	5" 19.5lb/ft G-105 PSL-3
	（2）FZ 35-35	（2）C26.00	Cylinder with tandem booster	5 1/2" 24.7lb/ft S-135 PSL-3
	（2）FZ 35-70	（2）C17.00	Normal cylinder	5" 19.5lb/ft G-105 PSL-3
	（2）FZ 35-70	（2）C30.00	Cylinder with tandem booster	5 1/2" 24.7lb/ft S-135 PSL-3
	（2）FZ 35-105	（2）C16.00	Normal cylinder	5" 19.5lb/ft G-105 PSL-3
	（2）FZ 35-105	（2）C23.00	Large cylinder	5 1/2" 24.7lb/ft G-105 PSL-3
	（2）FZ 54-35	（2）C27.00	Normal cylinder	6 5/8 " 27.7lb/ft S-135 PSL-3

U Type Variable Ram Range

BOP Type	BOP Model	Range of Variable Ram （in）
U	（2）FZ 28-35	2 7/8"-5"
	（2）FZ 28-70	2 7/8"-5"
	（2）FZ 35-35	2 3/8"-3 1/2"	2 7/8"-5"
	（2）FZ 35-70	2 3/8"-3 1/2"	2 7/8"-5"
	（2）FZ 35-105	3 1/2"-5"		4 1/2"-5 1/2"
	（2）FZ 54-35	2 7/8"-5 7/8"

Raw materials mainly include carbon steel, alloy steel, stainless steel, aluminum, and copper, etc., commonly used materials are 45#, Q235, Q345, 35Mn, 65Mn, 40Cr, 35CrMo, 42CrMo, 4140, 20CrMnTi, 20CrNiMo, 304, 310, 316, 431, Al, Copper, etc.
Forging equipment has 160tons, 300 tons, 400 tons, 630 tons, 1000 tons, 1600 tons, and 2500 tons, can forge ten grams to 55 kilograms of rough forging or precision forging products.
Machining equipment has lathe, drilling machine, grinder, wire cutting, CNC and so on.
Heat treatment includes normalizing, tempering, annealing, quenching, solid solution, carburizing, etc
The surface treatment includes shot blasting, spray painting, electroplating, electrophoresis, phosphate and so on
The testing equipment includes spectrometer, metallographic analyzer, hardness meter, tensile machine, impact testing machine, fluorescent magnetic particle flaw detector, ultrasonic flaw detector, three coordinates, etc
Products are widely used in petrochemical industry, engineering machinery, auto parts, locomotive and railway parts, metallurgy, shipbuilding, military products and other fields.

Mold development process
The R&D team conducts CAD design, CAM, UG, SOLIDWORKS modeling work.
We use superfine die steels as the raw material, allowing them to be processed with a CNC center, ensuring that the die steel’s precision is ensured and has excellent fatigue resistance, abrasive resistance, making sure that the forgings are produced in high quality.
There are more than 2000 sets of molds here at our company. The customers can choose any of them for processing to minimize cost. We perform inventory taking, clearing and recording every week to ensure that the production proceeds as scheduled.
Our mold warehouse is managed by following the IATF16949 quality management system and “6S lean management”, giving a long service life to the mold and making it convenient for use and storage.

Design and manufacturing
We will design and manufacture forging molds on receipt of the customer’s drawings or samples, then we will manufacture the mold by following the mold design. The molds often include forging dies, trimming dies.
Steel billet cutting and heating
Often, we will prepare the frequently used material in stock featuring material No. of 20＃, 35＃, 45＃, 20Cr, 40Cr, 20CrMnTi, 20CrMo, 30CrMo, 35CrMo, 42CrMo, Q235, Q345, A105 etc. Then an intermediate frequency furnace will be used for heating the raw materials into certain temperature and finally putting the eating rod on the metal framework for forging.
Forging
Before metal forging process starts, the top and bottom dies shall be connected to anvil block of forging press. Then the workers will pick the metal materials and put them between the forging dies to achieve desired shape by pressing the metal materials several times with a high-speed.
Cleaning
After the forging completed, there will be unwanted burrs around the forged blanks, so removing the burrs is a necessary step. Which requires the workers to mount the trimming dies under the punching press, then pressing the forged blanks to clean burrs on the surface of the forgings.
Heat treatment
Heat treatment process helps to get the required mechanical performance and hardness of products. The heat treatment techniques cover normalizing, quenching, annealing, tempering, hardening and so on.
Shot blasting
After shot blasting process, the forgings will have a smoother and cleaner surface than it would have been. Usually the surface smoothness of the forgings is available in Ra6.3, which is even smoother than that of the lost-wax casting.
Processing
For some components, the forging process is not available in the required tolerance, under this case, processing is optional. We will conduct the product processing with different processing equipment, including milling machine, boring machine, drill press, grinding machine, numerical control machine etc.
Surface treatment
In most cases, if no specific requirements required, we will have water/oil rust protection treatment on the surface of the forgings. We can also conduct other surface treatments, including paint spraying, powder coating, electroplating, electrocoating to meet specific needs of our customers.
Final examination
We will have an inspection on the product size to ensure high quality of our products.Sometimes, we also have mechanical performance and chemical components testing on our products.
Package and delivery
In most cases, the forged components will be packaged in polyethylene bags and then being put into firm wooden boxes. We are also able to customize packages according to the customer’s needs. As we are located in Ruian forgings industrial park, we have easy access to raw materials supply, which is cost effective on the whole.

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