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Vigor Cable Hydraulic Jar (VCHJ)
Drilling Jars
Vigor Cable Hydraulic Jar (VCHJ)

Vigor Cable Hydraulic Jar (VCHJ)

Vigor Cable Hydraulic Jar (VCHJ) is a downhole tool that combines cable control and hydraulic drive technology.
It is mainly used to quickly remove the jamming problems of downhole tools, instruments or pipes (such as sand jam, mud pack, well wall collapse, etc.) in oil and gas well operations.
Vigor Cable Hydraulic Jar (VCHJ) core function is to generate high-intensity impact force through the accumulation and release of precisely controlled hydraulic energy, helping to restore the mobility of downhole tools and reduce non-productive time.

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    Description

    Vigor Cable Hydraulic Jar (VCHJ) is a kind of unfreezing tool used to solve the problem of tools getting stuck during cable logging.

    It has no power and can be used for instant jarring. With simple structure and high reliability, the cable hydraulic jar has the advantages of fast, timely and multiple jarring when the tool gets stuck.

    According to different requirements for different operating environment, there are open hole jars, perforating jars, slim-hole jars and small diameter jars.

    The surface high-speed acquisition test system is used for detecting the action performance.

    Vigor Cable Hydraulic Jar (VCHJ) are used for jarring when difficulty is faced when attempting to obtain a good jar action with mechanical jars, particularly when in deviated wells or wells that contain highly viscous fluids. Hydraulic jars only provide an upwards jarring stroke and are run above the mechanical jars and below the stem.

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    Working Principle

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    Vigor Cable Hydraulic Jar (VCHJ) is used if a packer or guns become stuck to provide an upward shock to help pull them loose-without tripping. To deliver repeated jarring as needed, the jar tool automatically resets through the application of string weight on the packer.The tool comprises a housing connected to the free tools and a spline mandrel attached to the stuck tools. The housing can move up and down the mandrel.

    The VCHJ is initially closed (housing down). If the lower section becomes stuck, an overpull is put on the string to store energy in the drillpipe. This overpull causes the jar tool to begin metering oil through a flow restrictor in a chamber between the housing and mandrel. Once the seal ring reaches the undercut on the mandrel, the housing moves up quickly to produce an impact upward on the stuck tools.

    Once the jar tool has been activated, the string is lowered, and the housing moves down. Oil flows through the one-way check valve back into the upper section of the chamber, and the tool is recocked, ready to jar again as many times as needed.

    Features

    · Jarring is triggered once the tools get stuck and the cable tension reaches the unlocking force

    · The unlocking force is adjustable, suitable for different tension

    · Multiple jarring to improve unfreezing rate when tools getting stuck

    · High energy conversion rate, large impact force
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    Technical Parameter

    SPECIFICATIONS

     

    Regular Type Jar

    Slim-Hole Jar

    Perforation Jar

    Small-Diameter Jar

    Max. Working Temperature

    175 ℃

    Max. Working Pressure

    140 MPa

    Impact Force

    4 times of the unlocking force

    Reset Time

    ≦ 60s

    Tool O.D.

    φ89/ φ92 mm

    (3.5/3.62 In.)

    φ73/ φ76 mm

    (2.87/3 In.)

    φ73/ φ86mm

    (2.87/3.39 In.)

    φ58 mm

    (2.3 In.)

    Tool Length

    2900 mm (114.2 In.)

    2700 mm (106.3 In.)

    2100 mm (82.7 In.)

    1600 mm (63 In.)

    Unlocking force

    1300-2100 kgf

    (2860-4620 lbf)

    1300-2100 kgf

    (2860-4620 lbf)

    700-910 kgf

    (1540-2000 lbf)

    700-910 kgf

    (1540-2000 lbf)

    Stroke

    102 mm (4 In.)

    80 mm (3.15 In.)

    Tool Weight

    85 kg (187 lbs)

    60 kg (165 lbs)

    75 kg (165 lbs)

    38 kg (86.3 lbs)

    Cable Type

     14 Cores

    Single Core

    Insulation Performance

    500 MΩ @ 500 VDC
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    About VIGOR

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    China Vigor Drilling Oil Tools and Equipment Co., Ltd.
    Vigor is committed to researching, developing, manufacturing, and selling high-tech downhole tools and equipment. Our focus is on utilizing advanced technologies to help our customers reduce the costs of oil and gas exploration, production, and completion while keeping up with the development of the world's energy industry.
    VIGOR'S MISSION
    We continue to promote the development of the world's energy industry with high quality and innovative models.
    VIGOR'S VISION
    Become a century-old enterprise in the energy industry, serving 1000 leading enterprises in the energy industry worldwide.
    VIGOR'S VALUES
    Team spirit, innovation and change, focus, integrity, and live our dream true!
    Advantages of China Vigor

    Company History

    Vigor History
    Vigor is always your reliable partner in the oil and gas industry.
    Vigor expanded our manufacturing facilities in different locations of China which help us to serve the customers with swift delivery, diversity and efficiency of production. All our manufacturing facilities meet and exceed APl and international quality standards.
    With a solid background, experiences, full support from the engineering team, and high efficiency in production, Vigor has established stable and long terms cooperation with well-known international companies from the US, Canada, Colombia, Argentina, Brazil, Mexico, Italy, Norway, UAE, Oman, Egypt, Saudi Arabia and Nigeria, Etc.

    Vigor R&D Certificates

    Vigor team has consistently prioritized investment in product research and development. In 2017, several new products developed by Vigor were successfully tested and widely promoted, with advanced technological offerings being adopted in bulk by clients on-site. By 2019, our modular disposable guns and site selection perforating series had been successfully deployed in client wells. In 2022, Vigor invested in a high-tech tool manufacturing plant to further enhance our production capabilities.
    Our commitment to the R&D, production, and testing of new products remains unwavering. If you are interested in industry-leading products or technologies, do not hesitate to contact our professional technical team.
    R&D Certificate

    Vigor Certificates & Customer Feedback

    Remote-open Bi-directional Downhole Barrier Valve-6

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