Jysz Double Acting Hydraulic-Mechanical Drilling Jar

Min.Order: 1
Product origin: Mudanjiang, Heilongjiang, China
Infringement complaint: complaintComplaint
US$ 200 ~ 30000

Description

 

Product Description

(The drilling jar is a double acting jar) This drilling jar is designed to deliver hydraulic delay when jarring in the up direction, and mechanical release when jarring in the down direction. It provides excellent functional stability and strong jarring forces in both jarring direction. It is used to free stuck drill string components and is recommended for directional/deep wells drilling application.
Working principle
  • Up Jarring
Lower the drill stem to ensure that drilling jar is closed completely (in locking position). Up jarring is achieved by slowly increasing the lifting force on the drill stem, until there is sufficient pull force to overcome the spring resistance and initial hydraulic time delay. During the time delay, the overpull at surface can be adjusted to vary the desired impact force. When the mandrel reaches the trigger position, there is a sudden release in resistance, the elastic potential energy stored within the drill string will be transmitted to forward up jarring impact energy. After impact, apply a downward force sufficient to close jar in locking position, then repeat the jarring cycle as required.
  • Down Jarring
Lift and lower the drill stem to ensure that the drilling jar is closed completely (in locking position). Down Jarring is achieved by applying sufficient downward force to compress the spring and store elastic potential energy. When the pressure of the jar is greater than the desired unlocking force, the grapple will slide away from the mandrel to release the locking, performing down jarring action. Repeat the procedures to produce continuous down jarring action.
Detailed Photos

Product Parameters
Specifications - JYSZ Double Acting Hydraulic-Mechanical Drilling Jar
ModelJYSZ121JYSZ159JYSZ165JYSZ178JYSZ203JYSZ241
Product Code170800017100001711000171300017150001717000
O.D. (mm)121159165178203241
I.D. (mm)5157.257.26471.476.2
API ConnectionNC38NC46NC50NC506 5/8 REG7 5/8 REG
Overall Length (mm)467053005300588058306250
Total Weight (kg)29562066585011201770
Up Jarring Free Stroke (mm)152152152152152152
Down Jarring Free Stroke (mm)152152152152152152
Max. Up Jarring Force (kN)35070070080010001250
Max. Rated Release Force for Up Jarring (kN)180400400400420440
Rated Release Force for Down Jarring (kN)80180180180190200
Max. Tensile Load (kN)160034003400370044005400
Working Pull Force (kN)110020002000240028003500
Max. Torque Load (kN•m)20515160100129
Working Torque (kN•m)152525303540
Pump Area (cm²)55100100110176238
Length of Flexible Joint (mm)355542654265371035103410
Total Length (mm)812094509450946092109530
 
Certifications

 

 

Packaging & Shipping

 

All the packing will be suitable for export packing. All precautions will be taken to protect the cases from damage during overseas transportation,so as to receive them under proper conditions at the final destination.

Company Profile

Tianhe Oil Group Huifeng Petroleum Equipment Co., Ltd is a modernized medium-scale enterprise specialized in production of oil and gas tools.

As an API-Certified established manufacturer and supplier of a comprehensive range of downhole equipment with related accessories, we are committed to providing the highest Quality products for the Petroleum and natural gas industry since 1973.


Tianhe Oil Group strongly believes and promotes Total Quality Management, implement the ISO quality management system and HSE management system and API Standard, which has been deeply implanted into every person's thought and carried out into every aspect of work.

So far, Tianhe Oil Group has established strong business relationships with over 200 international oil & gas companies in supporting the top 50 oil producing countries.

We take pride in delivering superior performances and reliability. Our objective is to exceed your expectations, improve your economics and be an integral part of your strategies.

 

 

 


 

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