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Wellhead Control EQP

Description

Structual Feature
●  Pressurized components adopts superior alloy steel with good strength and impact toughness.
●  Door seal of the high pressure BOP uses combined seal, which has better seal from the well pressure.
●  Use floating or integral gate, can seal safely and change conveniently.
●  Use buriel-type oil passage, Bearing hinge is separated from the hydraulic hinge.
●  Hinge structure is simple, easy to dismount and mount.
●  Use big arc-type shell on both sides of the chamber, and transit by arc-type all around, to reduce the peak stress of the shell under pressure.
●  With compact structure, smaller than similar foreign products.
●  The internal shell of BOP resistant to low temperature can process pipeline, to make the steam flow inside the BOP, radiat heat.

 

Ram Assembly
● Pipe Ram

1. Top seal 2. Front seal 3. Ram body 1. Ram body 2. Bolt 3. Ram bolt 4. Ram rubber
5. Clamp holder
HF type Ram assembl

S type Ram assembl




1. Top seal rubber 2. Front seal rubber 3. Ram body
4. Clamp holder 5. Ram bolt

H type Ram assembly

 

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 body 2. Top seal rubber 3. Right seal rubber 4. Blade sealLeft seal rubber 3. Up shear ram body
4. Top seal rubber 5. Left seal rubber 6. Up shear ram body

Shear Ram Assembly Structure of S 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 S type Ram BOP


Structural Features

Technical Parameter

S Ram BOP Specification&Model

 

Operating pressure
(psi)
Bore(in)
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
105-15000 S S S S
70-10000 S S S S S
35-5000 S S S S S S S
21-3000 S S S S S S S
14-2000 S

 Note:S Ram BOP Specification&Model


S represents S 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
single double
180(71/16 in)series (2)FZ18-21 179.4(71/16) 21-3000 1.6 2 H maximum5 9/16 1420 645 568 854 855 1540 (2)S04.00
(2)FZ18-35 179.4(71/16) 35-5000 1.6 2 H maximum5 9/16 1420 645 624 910 895 1580 (2)S48.00
(2)FZ18-70 179.4(71/16) 70-10000 2.2 2.5 H maximum5 9/16 1720 640 897 1262 1660 3020 (2)S62.00
(2)FZ18-105 179.4(71/16) 105-15000 7.4 8 H maximum5 1/2 1988 820 922 1372 3175 5885 (2)S29.00A
230(9in)series (2)FZ23-21 228.6-9 21-3000 1.3 1.5 HF maximum 7 1526 565 580 866 705 1250 (2)S79.00
(2)FZ23-35 228.6-9 35-5000 4.7 5.3 HF maximum 7 2036 720 805 1190 1830 3415 (2)S23.00
(2)FZ23-70 228.6-9 70-10000 7 8 H maximum 7 2324 850 1038 1518 3635 6835 (2)S01.00
(2)FZ23-105 228.6-9 105-15000 10.2 10.9 HF maximum 7 2170 920 1140 1640 4150 7500 (2)S93.00
280(11in)series (2)FZ28-21 279.4-11 21-3000 2.7 3.2 S maximum 8 5/8 1846 675 740 1100 1400 2550 (2)S77.00
(2)FZ28-35 279.4-11 35-5000 5.4 6.2 S maximum 8 5/8 2265 785 895 1325 2475 4550 (2)S45.00
(2)FZ28-70 279.4-11 70-10000 7 8 H maximum 8 5/8 2324 850 1102 1582 3770 6850 (2)S16.00
(2)FZ28-105 279.4-11 105-15000 14.6 16.7 H maximum 8 5/8 2650 1050 1244 1784 6303 11028 (2)S67.00
346(135/8 in)series (2)FZ35-21 346.1(135/8) 21-3000 7.8 8.9 S maximum 10 3/4 2414 760 774 1164 2705 5115 (2)S78.00
(2)FZ35-35 346.1(135/8) 35-5000 7.9 9.3 S maximum 10 3/4 2415 847 930 1370 3010 5480 (2)S103.00
(2)FZ35-70 346.1(135/8) 70-10000 18 20.7 HF maximum 10 3/4 2786 1085 1276 1782 6120 11135 (2)S104.00
(2)FZ35-105 346.1(135/8) 105-15000 17.4 20 H maximum 10 3/4 3074 1140 1420 1985 8945 16070 (2)S115.00
425(163/4 in) (2)FZ43-35 425.5(163/4) 35-5000 10.3 11.6 HF maximum 10 3/4 2923 1190 1090 1570 5300 9860 (2)S95.00
476(183/4 in)series (2)FZ48-35 476.3(183/4) 35-5000 24.5 27.9 HF maximum 16 3430 1440 1504 2072 9758 12286 (2)S116.00
(2)FZ48-70 476.3(183/4) 70-10000 24.5 27.9 HF maximum 16 3430 1440 1618 2186 10312 20624 (2)S102.00
527(203/4in) (2)FZ53-21 527.1(203/4) 21-3000 12.2 13.6 HF maximum 16 3424 1165 1065 1650 6130 13355 (2)S83.00
540(211/4 in)series (2)FZ54-14 539.8(211/4) 14-2000 12.1 13.8 HF maximum 16 3300 1130 940 1480 5560 10200 (2)S33.00
(2)FZ54-35 539.8(211/4) 35-5000 26 29.6 HF maximum 16 3590 1445 1320 1950 9270 17670 (2)S105.00
680(263/4in) (2)FZ68-21 679.5(263/4) 21-3000 32.6 37 HF maximum 18 5/8 4350 1450 1250 1870 12360 20290 (2)S87.00
Note:1. BOP Testing pressure is 1.5 times of standard pressure
2. Operating pressure is from 8.4Mpa to 10.5Mpa

 

S Type Shear Ram Operating specification

 

BOP Type BOP model Recommended BOP code Cylinder Type Specification of drill pipe
S (2)FZ 18-70 (2)S62.00 Normal cylinder
(2)S92.00 Cylinder with tandem booster 4 1/2"  16.6lb/ft  G-105  PSL-3
(2)FZ28-35 (2)S45.00 Large cylinder
(2)S100.00 Large cylinder 5"  19.5lb/ft  G-105  PSL-3
(2)FZ 28-70 (2)S16.00 Normal cylinder
(2)S02.00 Large cylinder 5"  19.5lb/ft  G-105  PSL-3
(2)FZ 35-35 (2)S103.00 Normal cylinder
(2)S99.00 Large cylinder 5"  19.5lb/ft  G-105  PSL-3
(2)FZ 35-70 (2)S104.00 Normal cylinder 5"  19.5lb/ft  G-105  PSL-3
(2)S112.00 Large cylinder 5 1/2"  24.7lb/ft  G-105  PSL-3
(2)S117.00 Cylinder with tandem booster 5 1/2"  24.7lb/ft  S-135  PSL-3
(2)FZ 35-105 (2)S115.00 Normal cylinder 5"  19.5lb/ft  G-105  PSL-3
(2)S113.00 Cylinder with tandem booster 5 1/2"  24.7lb/ft  S-135  PSL-3
(2)FZ 54-35 (2)S105.00 Normal cylinder 5"  19.5lb/ft  G-105  PSL-3

 

S Type Variable Ram Range

 

BOP Type BOP Model Range of Variable Ram (in)
S (2)FZ 18-70 2 3/8"-3 1/2"
(2)FZ28-35 2 3/8"-3 1/2" 3 1/2"-5"
(2)FZ 28-70 2 3/8"-3 1/2" 3 1/2"-5"
(2)FZ 35-35 2 3/8-3 1/2 2 7/8"-5" 4 1/2-5 1/2 5-7"
(2)FZ 35-70 2 3/8-3 1/2 3 1/2-5" 4 1/2-5 1/2 5-7"
(2)FZ 35-105 2 3/8-3 1/2  3 1/2-5" 4 1/2-5 1/2 5-7"
(2)FZ 53-21 4 1/2"-5 1/2"
(2)FZ 54-14 4 1/2"-5 1/2"
(2)FZ 54-35 4 1/2"-5 1/2"
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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