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Oil Gas Well Testing Hydraulic Drilling Jar 15000psi

China Techcore Oil Tools Co.,Ltd, certification
China Techcore Oil Tools Co.,Ltd, certification
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Oil Gas Well Testing Hydraulic Drilling Jar 15000psi

Oil Gas Well Testing Hydraulic Drilling Jar 15000psi
Oil Gas Well Testing Hydraulic Drilling Jar 15000psi Oil Gas Well Testing Hydraulic Drilling Jar 15000psi

Large Image :  Oil Gas Well Testing Hydraulic Drilling Jar 15000psi

Product Details:
Place of Origin: CHINA
Brand Name: Techcore
Certification: ISO, BV, SGS
Model Number: Big John Jar / Hydraulic Jar
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: 80 sets/month

Oil Gas Well Testing Hydraulic Drilling Jar 15000psi

Application: Drill Stem Testing Tools Type: Safety Tools For Well Testing
Standard: NACE MR0175 Working Temperature: Max. To 450 OF
Working Pressure: 15000psi Working Condition: H2S Service Above 175oF & Full H2S
Tool Size: 5 Inch Connection: CAS Box X Pin
High Light:

Gas Well Hydraulic Drilling Jar


Well Testing Hydraulic Drilling Jar


15000psi Mechanical Drilling Jar

Hydraulic Jar For Oil & Gas Well Testing Service / Big John Jar​

The hydraulic jar is a safety tool used in well testing service, the hydraulic jar as the component of DST tool string is to help removing stuck tools by resisting a pull on the workstring, when the workstring is stretched by the pull, tension in the hydraulic jar is released and an upward impact is delivered to the stuck tool. The pulling strength of 5” x 15000psi Hydraulic Jar is 222.2kN.



Operation of Hydraulic Jar


The temporary resistance of the hydraulic jar that powers the jar is provided by a hydraulic time-delay system. Resistance is released when the metering sleeve inside the jar moves into a bypass section of the outer case. This action allows the special hydraulic oil to bypass rapidly.

The time delay required to release the temporary resistance varies in relation to the weight of the pull. For example, a light pull requires more time for release than a hard pull. When tools below the jar are stuck, a steady pull applied to the jar creates an upward impact blow to the string. The jar can be re-cocked when the string is set down.


Technical parameter of Hydraulic Jar


Specification 5”
O.D. 127.5mm
Bore Diameter 57mm
Length 1695mm
Working pressure 105Mpa
Internal pressure strength 149Mpa
External pressure strength 138Mpa
Tensile strength 1406KN
Torque strength 22KN.m
Service H2S,NACE MR0175(>175oF)
Working temperature -29oC+204oC
Connection thread 3 7/8CAS. BXP or 3 1/2 IF.BXP

Oil Gas Well Testing Hydraulic Drilling Jar 15000psi 0


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.


Welcome to contact us for more information of the downhole tools!


Contact Details
Techcore Oil Tools Co.,Ltd,

Contact Person: Mr. LEE

Tel: 0086 18161839623

Send your inquiry directly to us (0 / 3000)