|VR Safety Joint
|Open Hole Drill Stem Testing
|3 7 / 8 Inch
|3 1/2 IF Box X Pin
|H2S Above 175oF
|AISI Alloy Steel
dst well test
3 7 / 8" Open Hole DST Drilling VR Safety Joint For Well Testing Service
Brief of VR Safety Joint
The VR Safety joint is applied for well drill stem testing operation in open hole in well testing service.
The VR safety joint featured with compact structure is right-hand safety joint used in the DST working string. The VR safety joint is run in hole above the packer assembly in order to ensure that a minimum number of tools are left in the hole. he bypass of the VR joint acts as an auxiliary to the Hydro spring tester bypass to allow fluid to pass though the packer while the work string is being pulled out of the hole.
Features of Open hole VR safety joint
* The VR safety joint is made of alloy steel.
* With compact structure.
* Easy installation and maintenance of the open hole VR Safety Joint.
Specification of Open hole 3 7/8" VR safety joint
|Tool Size /in
|Makeup Length / in
|Working Pressure / psi
|EUE Box X Pin
Test procedure of the Open Hole VR Safety Joint
* Internal Pressure sealing test:
1. Make up the test sub on the two ends of the tool, install the tool into tensile strength tester, with two ends against the tester, attach sensor, pressure test pipeline and test pump on the test sub.
2. Pump water into the tool and remove the air inside, increase pressure gradually to 70Mpa, close stop valve on the test sub, hold the pressure for 15 minutes with no leakage.
* Movement test:
Place the case section of the tool in the vise, rotate the top adapter clockwise to the limited position, then, lift, rotate clockwise and lower down to the limited position.
Drill stem testing tools for cased hole, open hole and slim hole:
Full bore retrievable packer, full bore retrievable circulating valve, full bore retrievable safety joint, downhole tester valve, select tester valve, LPR- N Valve, omni valve, multi-cycle circulating valve, hydraulic jar, vertical shock absorber, radial shock absorber, RD safety circulating valve, high pressure retrievable packer with bypass, CHAMP packer, IPO valve, tubing string test valve, sleeve type drain valve, rupture disk sampler, super safety valve with control panel, BOP safety valve for downhole operation and so on.
Advantage of the Techcore Oil Tools
* Techcore insist on superior quality, strong packing & timely delivery.
* Third party inspection is available from SGS, BV, DNV etc.
* Techcore do the best to supply thoughtful and prompt after-sales service to guarantee for the
* Techcore supply the cost effect products with 12 months guarantee
* Techcore insist on the traceability of each Drill stem testing tools and related DST parts from the
raw material to the finished products to meet on requirements of onshore and offshore standards.
Welcome to contact us for more information about our tools and service!
Contact Person: Mr. LEE
Tel: 0086 18161839623