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Round Mandrel Slip Joint

China Techcore Oil Tools Co.,Ltd, certification
China Techcore Oil Tools Co.,Ltd, certification
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During the DST-TCP operation, the APR tools we purchased worked stable, and we are happy to see the quick response for any technical issure and fast delivery for redress kits

—— Ahmed

We are satisfied with your tools after 5 runs successful operation. We highly appreciate to see the excellent performances in sealing capacity and thanks for the specialist technical support from you

—— Leon

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Round Mandrel Slip Joint

Round Mandrel Slip Joint
Round Mandrel Slip Joint Round Mandrel Slip Joint

Large Image :  Round Mandrel Slip Joint

Product Details:
Place of Origin: CHINA
Brand Name: Techcore
Certification: ISO, BV, SGS
Model Number: DST Slip Joint -5"
Payment & Shipping Terms:
Minimum Order Quantity: 1 set
Price: Negotiable
Packaging Details: Polly wood, suitable for sea and air shipment
Delivery Time: 35-40 days
Supply Ability: 50 sets/month

Round Mandrel Slip Joint

Application: Well Testing Operation Type: APR Tools
Working Condition: Sour Service Above 175oF Working Temperature: Max. To 450 OF
Working Pressure: 105 Mpa Standard: NACE MR0175
Tool Size: 5 Inch Connection: IF Box X Pin / CAS Box X Pin
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Round Mandrel Slip Joint


Drill Stem Testing Slip Joint


105Mpa Drill Stem Test Tools

Well Testing Downhole Tools Round Mandrel Slip Joint High Pressure DST Tools


The round mandrel slip joint is one component of drill stem testing tool string, which is an expansion and contraction compensating tool used in Ful-Flo formation test, hook wall test, fracturing, acidizing operation in oil well.The round mandrel slip joint is designed and manufactured according to NACE MR0175, and suitable for working in H2S abouve 175oC and full H2S working condition.The round mandrel slip joint likes other slip joints, accepts the movement associated with ocean heave or temperature change without allowing the movement to disturb the placement of downhole tools. The slip joint can also accommodate any changes in string length caused by temperature and pressure during a downhole test. The round mandrel slip joint is composed of two distinct parts: an outer housing and a moving inner mandrel.

Technical parameter of Round mandrel Slip joint

Specifications/" 3-7/8" 5"
OD (mm) 99 127.5
Drift OD (mm) 45 57
Total length (mm) 4688 4688
Amount of stretching(mm) 1524 1524
Working pressure (Mpa) 70 105
Working temperature (°C) -29~+177 -29~+177
Resistance to Tension (KN) 870 1440
Internal Pressure Strength (Mpa) 105 147
Outer Pressure Resistance (Mpa) 100 137
Torque Strength (KN.m) 10.5 24
Binding Screw Thread 2-7/8" CAS & 2-7/8" EU 3-7/8"CAS & 3-1/2" IF


 Round Mandrel Slip Joint 0   


Strict quality control system


Techcore oil tools is certified by ISO, 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


Techcore 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.


Drill stem testing tools for cased hole, open hole and slim hole:


Full bore retrievable packer, mechanical setting 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.


Contact Details
Techcore Oil Tools Co.,Ltd,

Contact Person: Mr. LEE

Tel: 0086 18161839623

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