SHANGHAI SHENKAI PETROLEUM & CHEMICAL

EQUIPMENT CORPORATION LTD

WELLHEAD EQUIPMENT
 Content

1 About Shenkai

2 Certificates

3 Valves

4 Wellhead and Xmas tree

5 Manifold

6 Tools and Kits

7 Services
 About Shenkai Group

Shanghai SK Petroleum & Chemical Equipment Corporation Ltd is a private

shareholding high-tech enterprise mainly engaged in researching, developing and
manufacturing petroleum exploration instrument and petroleum machinery.
Located in Pudong, the company presently has the following subsidiaries:
Shanghai Shenkai Petroleum Science & Technology Co., Ltd, Shanghai Shenkai
Drilling Equipment Co.,Ltd,Shanghai Shenkai Wellhead Equipment
Co.,Ltd,Shanghai Shenkai Petroleum Instrument Co.,Ltd.The main products of the
company include mud logging unit, drilling apparatus, blow-out preventer (BOP)
and control system, wellhead & charismas tree, analyzing apparatus for
petroleum products, production logging apparatus, logging service, etc.. Our
products have entered over 40 countries and regions in America, Middle Europe,
Middle Asia, South Asia, Africa and so on.
 About Shenkai Wellhead
Equipment Co., Ltd

Shanghai Shenkai Wellhead Equipment Co., LTD is exclusively invested by Shanghai

SK Petroleum & Chemical Equipment Corporation LTD. It is reorganized by the original
Shanghai Second Petroleum Machine Factory, which has over 40 years experiences on
the manufacturing of the Wellhead equipments. Shanghai Shenkai Wellhead Equipment
Co., LTD is concentrating on the study and manufacturing of Wellhead equipments and
Manifold by introducing the concept and system of the modern market economy. The
products are very popular already in 44 countries such as South America, East Europe,
Africa, South Asia, Middle East and so on. In the domestic market, it has had business
cooperation with such big oil companies as CNPC, SINOPEC and CNOOP for a long time.
The pressure, size, material, warranty and inspection of the products all comply with
ISO9001, APIQ1, API6A and API16C.
 Certificates 1

API Spec Q1 Certificate

API Monogram

API 6A Certificate API 16C Certificate

 Certificates 2

ISO9001 Certificate API 9001 Certificate DNV Certificate

Products comply with NACEMARO175-2003

 WELLHEAD EQUIPMENT INTRODUCTION

• VALVE

• CHRISTMAS TREE

• CHOKE/KILL MANIFOLD

• TUBING HEAD ASSEMBLY

• CASING HEAD ASSEMBLY

• TOOLS
Wellhead Equipment
Valves
 Main specifications

• Bore Size: 1 13/16" ～4 1/16 "

• Working Pressure: 2000～15000Psi
• Temperature: K、L、P、R、S、T、U
• Medium: Oil、Gas、Mud、 Kill Fluid、Water
• Standard: According to API.SPEC 6A、API.SPEC 16C、NACE MR 0175
• Products can be used under tough conditions such as H2S, CO2, high
temperature, low temperature and strong corrosion.
• The Port connections like flange, thread and weld comply with the API
and ANSI standard.
• Hydraulic/Pneumatic technology is applied for remote and automatic
control of the valves.
“PF” type gate valve 1
“PF” type gate valve 2
Gate Valve
Gate Valve
 About gate valve

Different kinds of gate valves：

Valve Working Pressure psi
Structure 2000 3000 5000 10000 15000
2 1/16 2 1/16 2 1/16 1 13/16
Non-rising stem ～ ～ ～ ～
4 1/16 4 1/16 4 1/16 4 1/16
Rising stem with
1 13/16 1 13/16
balancing stem
4 1/16 ～ ～
4 1/16 4 1/16
Rising stem without
2 1/16 1 13/16 1 13/16
balancing stem
～ ～ ～
4 1/16 4 1/16 3 1/16
1 13/16 1 13/16
Gear driving device ～ ～
4 1/16 4 1/16
 About gate valve
Operation Torque
677.5

524.0
Torque / Nm

406.5
- 1 /1 6”
4
271.0 3 -1 /16”)
”(
3-1/8 2-9/16
”
2-1/16”
135.5 1-13/16”

0 2000 3000 5000 10000 15000

Working Pressure / psi
 About gate valve
Number of Turns

Specification Working Pressure psi

inch
2000 3000 5000 10000 15000
1-13/16 12 12
2-1/16 13 13 13 10 1/2 13 3/4
2-9/16 15 15 15 13 3/4 17 1/2
3-1/8 19 19 19
3-1/16 20 20
4-1/16 19 1/2 19 1/2 19 1/2 19 1/2 30
 About gate valve
Temperature Class
Rated Temperature
oF oC

Class Min Max Min Max

K -75 180 -60 82
L -50 180 -46 82
P -20 180 -29 82
R R.T. R.T. R.T. R.T.
S 0 150 -18 66
T 0 180 -18 82
U 0 250 -18 121
V 35 250 2 121
 Reliability of our gate valve

Forging Valve Bonnet Casing or forging Valve Body

Hard Seal between Body and Bonnet

Low Torque

Hard Seal between Gate and Seat

Manual or Gear Driving device

No rubber seal, which can protect the body from the incursion of mud, sand and rock.
Valve Seal Components
 Valve
1、The rising and non-rising stem structure is safe and reliable and can be applied
under all kinds of environment.
2、The same inner pathway size device can extend the use life of the valve, and it does
not limit the flux so that the turbulent flow can reduced to the minimum.
3、Metal to metal seal is applied between gate and seat.
4、Absolutely close. The surface of the gate and seat, which require a knife-edge to
measure, is polished and smooth to make sure that the gate and seat is totally closed.
5、The seal will be more reliable by the working line pressure which will be put on the
gate to stick to the seat.
6、The metal to metal seal on the back stem can supply the reliable safety guarantee
when the stem packing is leakage and needs to be changed. When the packing and
grease fitting is damaged, it allows the body to bear pressure.
 Valve

7、The valve without any rubber seal can be designed to be used under tough environment. Metal to
metal seal is applied between bonnet and body, the seal ring is made of Series 300 stainless steel. The
structure of some seal ring makes it possible to use the ring repeatedly for many times without
change. “Lip” type packing is used to seal stem and bonnet. The packing materials are
777PTFE+Eigloy stretch framework, which can bear the pressure of maximum 20000psi, the low
temperature of -120℃ and high temperature of 288℃. “PEK” materials, which have superior sealing
performance, are used on the seal between seat and body so that the seal can work normally under
the very high temperature and very low temperature.

8、Some gate valve of high pressure apply the gear driving device, which can make the operation torque
lower than 200Nm.

9、The valves are suitable for both onshore and offshore use.
 Choke Valve

The choke valve can be divided into “CH-2”

needle style, “JLK” pole plug style and “JLB” orifice
style. “CH-2” style choke valve can be divided into
“CH-2A” adjustable style and “CH-2B” positive style.
“CH-2A” and “JLB” choke valve can be on both
manual and hydraulic operation. The body and part
materials of the choke valve comply with API 6A and
NACE MR 0175. The choke valve is widely used on
the onshore and offshore drilling and production
operation, which means it is also suitable for
Christmas tree, choke and kill manifold.
 Choke valve

The choke valve can be produced against H2S and CO2

by the special choke components inlaying the corrosion-
proof materials. These special choke components are
including stem, seat, choke fitting, and the corrosion-proof
materials are including special alloy and tungsten carbide.

Just by changing a few inside components, “CH-2A”

can be changed for “CH-2B” without dismantling it from
the manifold. Similarly, “CH-2B” can also be changed for
“CH-2A”.

The choke valve is suitable for the working conditions

of corrosion medium because of the choke fitting and seat
with corrosion-proof materials. It can reduce or eliminate
the depositing of the solid grain in the air, water and oil. Its
applicable temperature is －59℃～121℃。
 Choke Valve

“CH-2A” adjustable choke valve

uses standard choke bean, whose
opening can be ½”, 1”, 2” or 3”.
The standard choke bean of “CH-
2B” positive choke is 6 inches long.
The increment of its opening is 1/64,
and its standard specification is 8/64,
12/64, 16/64, 24/64, 28/64, 32/64, 36/64,
40/64, 48/64, 56/64, 64/64, 80/64, 96/64,
112/64 and 128/64. The material of the
choke bean is hard alloy.
Choke Valve
Hydraulic Orifice Choke Valve
 Choke Valve

“CH-2B” Positive Choke Valve

 Choke Valve
“CH-2A” Adjustable Choke Valve
 Choke Valve

“CH-2A” Adjustable Choke Valve (with the position sensor)

 Choke Valve Position Transmission

The Transmission Sensor is only used for Pole Plug Choke Valve
 Specification of Choke Valve
Flange Inlet Flange Outlet A B
1-13/16 ″ －10000 1-13/16 ″ －10000 8.31 7.69
1-13/16 ″ －15000 1-13/16 ″ －15000 9.62 8.47
2-1/16 ″ －5000 2-1/16 ″ －5000 8.00 6.88
2-1/16 ″ －10000 2-1/16 ″ －10000 8.84 7.66
2-1/16 ″ －15000 2-1/16 ″ －15000 10.31 8.88
2-9/16 ″ －10000 2-9/16 ″ －10000 11.75 10.38
2-9/16 ″ －15000 2-9/16 ″ －15000 11.75 10.50
3-1/16 ″ －3000 3-1/16 ″ －3000 11.38 8.88
3-1/16 ″ －5000 3-1/16 ″ －5000 11.38 8.88
3-1/16 ″ －10000 3-1/16 ″ －10000 11.75 10.38
3-1/16 ″ －15000 3-1/16 ″ －15000 11.62 10.38
4-1/16 ″ －10000 4-1/16 ″ －10000 11.50 9.94
“YDF” Check Valve
 “YDF” Check Valve Technology

“YDF” Check Valve is produced by McEvoy’s technology from the

U.S.A. There are seat, gasket, piston, spring and seal ring in the valve
body to make sure that fluid is running in mono-direction. Other
valves or pipes can be connected on both side of the check valve,
which facilitates the operation on the fields.
 “YDF” Check Valve Specification

• “YDF” check valves are generally used on kill manifold. The

scope of the working pressure is from 2000 to 5000Psi, while
the nominal bore size is from 1 13/16″ to 4 1/16″, which can
satisfy all requirements for geologic exploration and oil
production.
• Requirements for connection, material, physical and chemical
data and pressure test conform to API Spec 6A, 19th edition.
• The working medium of check valve is oil, mud or gas.
• “YDF” check valve is a type of valve, which let the fluid
medium go through in working pressure according to the
direction showed by the arrowhead on the body and cutoff the
reverse fluid.
Safety Valve
Safety Valve
Wellhead and Christmas Tree

Our company manufactures the

Christmas Tree and Wellhead
Equipment strictly according to
API 6A standard, with a long
history, abundant producing
experience, and reliable quality
control system. Thus, our products
can meet different requirements
under different working conditions
of the onshore and offshore oil
field. And we mainly produce high
pressure Christmas tree.
Our series products are suitable
for all kinds of completion well
with different depth.
 Christmas Tree Specification

Working Pressure: 3000Psi～15000Psi Material Class: AA BB CC DD EE FF

Main Bore: 2 1/16 ″ ～ 4 1/16 ″ Temperature Class： K、L、P、R、S、T、U
Performance Class: PR1 PR2 Production Class: PSL1、PSL2、PSL3、PSL3G

High-pressure Christmas tree used in

High-pressure Christmas tree used in Xinjiang Xinjiang Province of China
Province of China
 Christmas Tree

Single Assembly Style

Solid Block Style

 Christmas Tree

Dual Tubing Christmas Tree

Christmas Tree with ESP

 Christmas Tree
Christmas Tree for heat production

Christmas Tree for water injection

 Christmas Tree
Wellhead Well Test
Equipment for Gas Equipment
Production
Christmas Tree
 Christmas Tree
According to the different requirements from the customers, we can supply the Christmas Tree
and Wellhead Equipment of different pressure and design, which can meet the requirement of
different working conditions and fluid medium. The anticorrosion performance of our products is
conforming to MR-01-75 Standard. We will make some feasible plans for the customers to choose
when supplying goods every time. The good quality control system of our company makes every
delivered Christmas Tree and Wellhead Equipment satisfied by you.

Pump Christmas Tree used in Tarim fields Dual Tubing Christmas Tree used in Bo sea block #36
Tubing Head
 Tubing Head

Working Pressure：3000Psi ～ 15000Psi Tubing Hanger Seal：Rubber、Metal to Metal

Thread：API tubing thread or other special gas seal thread, under-well control line can be
included.
Tubing Head Specification
 Tubing Head with ESP
Working pressure from 3000psi to 15000psi. All kinds
of cables can penetrate the tubing head with good
insulation and seal. It also has the under-well control
lines.
Dual-tubing Tubing Head

Working pressure: 3000Psi ～ 10000Psi

Seal of hanger: rubber, metal to metal

Top & bottom thread: API thread or other

special gas seal thread, with control lines.

Casing Head
Casing Head
 Casing Head
Working Pressure: 2000Psi ～ 15000Psi

Casing: 5″ ～ 13 3/8 ″

Ground Casing： 9 5/8 ″ ～ 20 ″

Ground Connection Type: Thread, Weld, Slip

 Casing Head

Thread type casing head housing:

Bottom connection is API casing

thread including long-round, short-

round and buttress thread

Ground Casing: 7 ″ ～ 20 ″
 Casing Head
Weld type casing head housing:

There are two weld joints (up & down) in

the bottom for welding the casing. There

are pressure-test ports to make water

pressure test for the weld joints.

Ground Casing: 13 3/8 ″ 、 20 ″

 Casing Head

Slip type casing head housing:

It can be installed easily on the

fields. Its direction can be adjusted.

It has double seals to connect the

casing, and has pressure test ports.

Casing Hanger

Slip
Top Stopper
Bolts
Rubber Seal Ring
Bottom Stopper

Combination Screw
Slip Cap
Casing Head & Hanger
 Casing Head

We can make different

kinds of proposals for
customers to choose according
to the design and specification
of the casing. We can also
send our engineers to the
fields to instruct the
installation.
 Installation of Casing Head

The casing head installed

at the field in Uzbekistan The casing head installed
at the field in Kazakstan
Choke and Kill Manifold
 Choke and Kill Manifold
On drilling, choke manifold and kill manifold are on the opposite sides of the
BOP, switching on and off of the gate valves and adjusting the choke valves can
realize choke and flow, and they can also adjust the pressure gap between the
drilling and casing. So they are necessary parts on the balance and
underbalance drilling.

On drilling, when kick or blowout happens, the side way of the choke manifold can be open for
flow, also the flow can be done by opening the valves on the middle way directly. The high-pressure
mud from mud pump is pressed into the casing through kill manifold, so as to prevent the well
from kick and blowout. Choke and kill manifold are the necessary equipments for drilling.
 Technical Agreement Notice

1、Standard
2、Products Range:
choke manifold/kill manifold/control box/spare parts
specifications and quantities.
3、Technical Requirement:
including working pressure/main bore size/side bore
size/PSL class/PR class/temperature class/material
class/casting or forging body/rising or non-rising
stem/pole plug or orifice choke/lifting or non-lifting
skid
 Technical Agreement Notice
4、Specifications：
gate valve specification and quantity/hydraulic or manual choke and
quantity/flow direction and wings/pressure gauge quantity and connection
port/inlet and outlet connection/union specification/control box with or without
counter for pump strokes. It’s better that customers can supply the PR
drawings.
5、Documents
operation Manual (C/E/R), material certification, NDT report, pressure test
report, quality certificate, packing list.
6、Inspection
third-party inspection or not.
7、Delivery time
design/logistics/manufacturing/documents/transportation should be included in
the delivery time.
 Relevant Standards

1、API 16C choke and kill system

（corresponding to SY/T5323）
2、API 6A wellhead equipment & Christmas tree
（corresponding to SY/T5127）
3、API RP 53 proposal for drilling BOP system
4、NACE MR-0175 anti-H2S material
 Chock and Kill Manifold

Working Pressure： 3000Psi- 15000Psi

Main Bore： 2 1/16 ″- 4 1/16 ″

Choke Side Bore： 2 1/16 ″- 4 1/16 ″

Kill Side Bore: 2 1/16 ″- 4 1/16 ″

Material Class： AA BB CC DD EE FF

Manufacturing Class：PSL1—PSL3

Temperature Class： L 、R、S、P、T、U

Working Medium： Oil(Gas), Drilling Fluid, Mud

Standard： API SPEC 6A API SPEC 16C NACE MR-01-75

 Port Connection of Manifold

Connection Flange Adapter Flange Weld Flange

•There are also thread flange, blind flange and

direct valve connection.

Union Flange
 Non-lifting Choke Manifold

This is the general choke manifold,

which is put on the skid. You can
use the structure which the picture
shows, and can require some other
structures.
Lifting Choke Manifold

The input port of the lifting choke

manifold can be adjusted according to the
height of the drilling spool. The general
range of the height adjust is 1m, and the
increment is 5cm. On adjusting, loose the
lock handle first, and then sling the
manifold, finally lock the handle again to
prevent shaking on working.
Lifting Kill Manifold

The flow port of the lifting kill

manifold can be adjusted according to
the height of the drilling spool. The
general structure is the “T” shape, and it
can also be customized.
Standing Choke & Kill Manifold
 Chock Manifold

This choke manifold is working

with the workover rig on the
eastern-sea platform. The
working pressure is 70Mpa. It
features as less space (4.2m x
2m), smaller operation height,
focused valves. It connects the
pipeline by hammer union,
which is convenient for
installation and maintenance.
 Mud Cycle and Choke Manifold

The Mud Cycle and Choke Manifold are serving on the eastern-sea platform.
 Choke Manifold

This Choke manifold is working with the offshore

drilling platform. The working pressure is 70Mpa. The
manifold is erected and a second-layer platform is used.
It features as less space but larger operation height. The
manifold will be fixed from wind by tight rope. Usually it
is located on the same side of the kill manifold and mud
manifold. It connects the pipeline by hammer union,
which is convenient for installation and maintenance.
 Choke Manifold

This choke manifold with the working pressure of 70Mpa is used in

Talimu fields of Xinjiang province. The height of the manifold is adjusted by
adding the blocks below the skid.
 Choke Manifold for Delivery

This choke manifold with 105Mpa working pressure is designed for Chuandong oil field.
（double wheel and double hydraulic choke valve; meet the working condition of 20% H2S and 10% CO2; performance class is PR2.）
Mud Cycle Manifold

This is a mud cycle manifold, equipped

with several control line regarding the drilling
liquid, killing mud and fixing cement, and with
the port of drilling instruments and casing
pressure gauges. On the right side is the fixing
cement control line, composed of three 70Mpa
x 2-1/16” gate valves. On the left side is the
35Mpa x 4-1/16” standpipe control line. The
middle is the 35Mpa x 2-1/16” cleaning line,
flowing line and killing line. These lines are
connected with the relevant equipment by

hammer union.
 Mud Cycle Manifold

This is the mud manifold working with the drilling equipment on the
west-lake offshore platform at the eastern sea of China.
Control Box of Choke Manifold
 Control Box of Choke Manifold
The control box is the control device in hydraulic choke manifold. It
can control the open or close of the hydraulic choke valve at long
distance. On the face board of the control box, the pressure of the
stand pipe, the pressure of the casing and the open degree of valve
position of the hydraulic throttling valve can be displayed. The
pressure transmitters of stand pipe and casing adopt pneumatic
signals to sense, which has the properties of high sensing precision,
good shock resistant performance, easy installation and natural
anti-explosion. It is a controlling device necessary for successfully
controlling well surge and blowout and enforcing pressure control
technique for oil and gas wells.
 Control Box of Choke Manifold

Pressure of Air Source：0 — 0.6MPa

Environment Temperature：－40℃ — +70℃
Rated Output Oil Pressure：4MPa
Max Output Oil Pressure：5MPa
Oil Line：M22×1.5 15 m
Air Line：M16×1.5 15 m
Hydraulic Oil：10# aviation hydraulic oil
Dimension：780×490×1050 (mm)
Weight：210Kg
 Control Box of Choke Manifold

The working principle of the hydraulic choke manifold control

box is the balance principle of air and liquid. It gathers together
the pneumatic and hydraulic transmission, converting the pressure
of the outside air source into hydraulic energy to control the open
and close of the hydraulic choke valve so as to steady the pressure
of well bottom to realize the functions of choke and kill.
Tools
 Wellhead Tools

We can supply different wellhead tools to match with different

kinds of casing.

Test Plug

Bowl Protector Running/Retrieving Tool

 Valve Change Tool

The valve change tool makes it possible to change valve under pressure on
the side outlet of casing head or tubing head without closing well.

Bore Size 1 1/2 ″

Working Pressure 5000Psi
Connection Type Flange
Seal Type Gasket
Seal Grease Injection Tool
 BPV Running/Retrieving Tool

The BPV running/retrieving tool is used to install or uninstall under

pressure the BVP on the tubing hanger, which is in the tubing head, by
means of the piston movement and rotation caused by hydraulic drive or
wrench operation. The purpose of BPV is to maintain all the valves on the
Christmas tree without killing the well or close the SSSV.

Specification:

Max. Working Pressure: 10000Psi

Connection type: 6 1/2 ″ -4ACME-2G quick union
Working Distance: 2000mm
BPV Specification: 2 1/2 ″ 、3 ″ 、4 ″
 Back Pressure Valve (BPV)

The BVP is installed or uninstalled under pressure on the tubing hanger by

the BPV running/retrieving tool and wrench operation in order to change
Christmas without killing the well or close the SSSV.

Specification:

Max. Working Pressure： 10000Psi

Connection type: 2 1/2 ″ 、3 ″ 、
4 ″ “H” BPV thread
Seal type: soft metal seal, single direction
Exploring and Creative
Now we are developing
the 15000 PSI choke manifold
with all forging combined
valves to meet the
requirement of high-pressure
and high-H2S oil field. The
manifold is composed of
double hydraulic choke and
double wheel choke, with the
main bore size of 4 1/16” and
side bore size of 3 1/8”.
Compared with the same
specification common
products, it features as strong,
safe, reliable, anti-corrosion,
little dimension and
convenient transportation.
 Cooperation Project

In recent years, the

mud manifold with double
standpipe is applied with the
use of top drive in drilling.
We will develop the relevant
products for the foreign oil
fields with Lanzhou
Petroleum Machinery.
Machining Equipment
Machining Equipment
Surface Treatment
Cleaning Equipment
Seal surface bead weld for anti-corrosion

The craft evaluation

shows that the bead weld
quality achieves the
requirement of machinery
strength and dilution rate
after the seal.
 Quality Assurance
Means of quality assurance
• Chemical Analysis Laboratory
• Mechanical Property Laboratory
• NDT（UT、LP、MP ）
• Measurement Room
• Fine Texture Analysis
Hydrostatic Pressure Test
• Gas Seal Test
Means of third-party inspection
• sound emission test, electric resistance strain stress test
 Fine Texture Test Equipment

25CrNiMo （diffusion
XJL03 digital fine texture annealing, tempering）
microscope Backfire sorbite
multiple：500X
 Gas Seal Test System

Gas seal test equipment,

data collection, analysis
and monitor system, and
test pool.
 Pressure Test

The manifold is being put under water for

pressure test.
Impact Test
Mechanical Property Test Lab

Main Equipment：
Hydraulic universal test
machine、Impact test
machine（equipped
with low-temperature
cooler）、
Rockwell hardness
tester.
 Low Tem. Test System for Steel

Temperature Range:
0– -75℃
 Third-party Performance Test for Valve

Valve PR2 performance test made in Sichuan Guanghan

well-control quality test center.
Third-party Performance Test for Valve

Valve performance graph

under different pressure
Pressure Test Equipment
Test Pressure Equipment
 Services

· Take the idea of ““the

the customer supreme, the quality first”;
first”;

· Take the aim of customers satisfaction on quality;

· Establishing excellent before -sale, on

before-sale, -sale and after
on-sale -sale
after-sale
service system;

·Setting a professional technical -support department and an

technical-support
excellent qualified technical-support team to serve customers
technical-support
with quickest response.
Exhibition
SHANGHAI SHENKAI PETROLEUM & CHEMICAL
EQUIPMENT CORPORATION LTD

Address：No.1769 Puxing Road, Shanghai China P.C.：201114

Tel：86-21-64293625 Fax：86-21-64298688
Website：www.shenkai.com Email：trade@shenkai.com