APR Drill Stem Testing Tools Safety Circulating Valve For Rupture Disc
Rupture Disc Safety Circulating Valve For Drill Stem Testing Service
The Rupture Disk safety circulating valve is a part of DST tool string, the RD Safety Circulating Valve can be used as both a safety valve and circulating valve. The RD Safety Circulating Valve work as a safety valve when the annulus pressure reaches a predetermined value. At that pressure, the safety circulating valve isolates the workstring below the tool and establishes communication between the annulus and the workstring above the tool. The RD safety circulating valve converts into a circulating valve when the ball valve section is removed and attach a lower adapter called RD Circulating Valve. The valve can not be open when closed in downhole operation.
Technical parameter of RD Safety Circulating Valve
| No | Specification | 5” RD Safety circulating valve | 5” RD Circulating valve |
| 1 | O.D. | 127.5mm | 127.5mm |
| 2 | Bore Diameter | 57mm | 57mm |
| 3 | Length | 1843mm | 1220mm |
| 4 | Working pressure | 105Mpa | 105Mpa |
| 5 | Internal pressure strength | 140Mpa | 139Mpa |
| 6 | External pressure strength | 130Mpa | 120Mpa |
| 7 | Tensile strength | 2337KN | 2139KN |
| 8 | Torque strength | 61KN.m | 61KN.m |
| 9 | Service | H2S,NACE MR0175(>175oF) | H2S,NACE MR0175(>175oF) |
| 10 | Working temperature | -29oC+204oC | -29oC+204oC |
| 11 | Connection thread | 3 7/8CAS. BXP or 3 1/2 IF.BXP | 3 7/8CAS. BXP or 3 1/2 IF.BXP |
Drill stem testing tools for cased hole, open hole and slim hole are available as below
RTTS Serires: Full bore retrievable packer, full bore retrievable circulating valve, full bore retrievable safety joint,
Tester Valve: downhole tester valve, select tester valve, LPR- N Valve, Tubing String Tester Valve
Circulating valve: omni circulating valve, multi-cycle circulating valve, RD Circulating valve, RD safety Circulating Valve, Hydraulic Circulating Valve
Other DST string tools: hydraulic jar, vertical shock absorber, radial shock absorber, RD safety circulating valve, high pressure retrievable packer with bypass, CHAMP packer, IPO valve, sleeve type drain valve, rupture disk sampler, super safety valve with control panel, BOP safety valve for downhole operation and so on.
ZZ TOP Oil Tools Service
Strict quality control system
ZZ Top Oil Tools with the sub-factory certified by ISO is expert in design and production of downhole well testing tools. All the manufacture is strictly conformed with ISO system including Quality Control Management, Environmental Management and Occupational Health & Safety Management. For each downhole tools and each parts, we make the trace-ability from the raw material till the products. And any TPI inspection are available with us from SGS/BV/ TUV /DNV etc..
Continuous after sales service
ZZ TOP Oil Tools provides the prompt after-sales service to our customers to guarantee your benefits. For the complete downhole tools, we provide the free training in our factory, and if you need the site instruction, we can appoint our technical engineer to your site for the training.
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