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XI'AN ZZ TOP OIL TOOLS CO.,LTD
XI'AN ZZ TOP OIL TOOLS CO.,LTD

China DST 3 7/8" Rupture Disk RD Circulating valve manufacturer

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Gold Index: 84221

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DST 3 7/8" Rupture Disk RD Circulating valve 

Price: 500.0~10000.0 USD 
Payment Terms: T/T,L/C,D/A 
Special Groups: DST Tools (146)
drill stem testing (124)
Place of Origin: Shaanxi, China (Mainland) 
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Product Detail

Model No.: DST-3 7/8" circulating valv...
Production Capacity: 10 pcs/month
Delivery Date: 7 days
Type: drill stem testing tools
service: H2S&CO2
Working condition: High pressure high temperat...
Operate: ANNULAR PRESSURE OPERATED
Delivery: On shelf stock
Means of Transport: Ocean,Land,Air
Packing: polywood case
Application: oil well testing
working pressure: 15000psi
standard: NACE MR0175
Size: 3 7/8" RD circulating valve
Brand: ZZTOP

ZZTOP manufactures the rupture disk (RD) safety circulating valve in high quality with competitive price, and supply the technical training for DST.

3 7/8" Rupture Disk(RD) safety circulating valve on shelf

The rupture disk (RD) safety circulating valve functions as both a safety valve and circulating valve. The tool functions as a safety valve when the annulus pressure reaches a predetermined value. At that pressure, the valve isolates the workstring below the tool and establishes communication between the annulus and the workstring above the tool. This tool converts into a circulating valve when the ball valve
section is removed.
Features :
• The power section consists of a power mandrel case and rupture disk that is available for a wide range of pressure applications. The rupture disk bursts at a predetermined pressure, allowing annulus pressure to be applied to a differential area on the power mandrel. The power mandrel moves down, first pushing the ball valve closed, and then opening a set of circulating ports.
• The circulating section consists of a set of ports that are initially sealed by the power mandrel. When the rupture disk bursts, the power mandrel moves down, exposing the ports that allow communication between the annulus and workstring.
• The safety valve consists of a ball valve, operating pins, and collet fingers. As the power mandrel moves down, the operating arms close the ball valve. The collet fingers expand, allowing the power mandrel to continue traveling down to open the circulating ports.
Operation
Before the RD safety circulating valve is used, the operating pressure is calculated for selecting the proper rupture disk pressure rating. Required information includes mud weight, testing depth, bottomhole temperature, and maximumannulus pressure. When the rupture disk safety circulating valve is run with an annulus pressure-operated valve, the safety valve operating pressure should be kept 1,000 psi above the operating pressure of the tester valve.
Nom.Size
OD/in
ID/in
Flow area
No.of ports
3 7/8
3.90
1.80
3.14
4
5
5.03
2.28
3.14
4
Technical parameter
Working pressure: 15000Psi
Working temperature: 450oF
Working condition: H2S above 175oF, Full H2S
Thread: CAS connection
Standard: NACE MR 0175

Rupture Disk                                                   
DST 3 7/8Rupture Disk RD Circulating valve       DST 3 7/8Rupture Disk RD Circulating valve
Rupture Disk testing equipment
DST 3 7/8Rupture Disk RD Circulating valve

RD safety circulating valve (Drill stem testing tools pressure test preparation)
DST 3 7/8Rupture Disk RD Circulating valve

RD Circulating valve Inner sealTest Chart
DST 3 7/8Rupture Disk RD Circulating valve
RD Circulating valve Function Test Chart
DST 3 7/8Rupture Disk RD Circulating valve
ZZ TOP Production Floor                                                              Finished products

DST 3 7/8Rupture Disk RD Circulating valve    DST 3 7/8Rupture Disk RD Circulating valve

ZZ TOP OIL TOOLS is the professional manufacturer for the drill stem testing tools and surface testing equipment. All the DST tools are conformed with NACE MR 0175 with traceability,and the DST tools can be worked in H2S & CO2 above 175 F and full H2S, also with the skilled and experienced engineers, we can design the drill stem testing tools as per customer's well condition. Moreover, we supply the training in our factory and operation instruction at the well site. The DST tools are exported to USA, Colombia, India, Pakistan, Iran, Brazil etc. and enjoy the good reputation from the customers.
To shorten the delivery time, we proceeded the DST Tools in stock:
Packer,circualting valve,select tester valve,APR N-valve,OMNI valve,Hydraulic Jar,Tubing string tester
1. Full bore Packer, 7" Casing, working pressure 70Mpa, Working Temperature 400F, Connection: IF, 4set
2. Tester valve, 5", Working pressure 105Mpa, Working temperature 400F, Connection CAS. BXP, 4 sets
3. Hydraulic Jar,5", Working pressure 105Mpa, Working temperature 400F, Connection CAS. BXP, 4sets
4. Rupture disk Circulating valve, 5", Working pressure 105Mpa, Working temperature 400F, Connection CAS. BXP, 4sets
5. Flowhead (surface test tree), 3 1/16", working pressure 70 Mpa. 1set
Should you have any interest or inquiry on the Drill stem testing tools, contact us freely.

DST Tools Manufacturer
Ms. Elaine
skype Ms. Elaine

Tel: 86-29-81779342
Mobile: 136 2920 7466
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Company Info

XI'AN ZZ TOP OIL TOOLS CO.,LTD [China (Mainland)]


Business Type:Manufacturer, Distributor/Wholesaler, Service
City: Xi'an
Province/State: Shaanxi
Country/Region: China (Mainland)

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