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Full Hydraulic Drilling Jar

Full Hydraulic Drilling Jar

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  • Hydraulic Mechanical Drilling Jar

Hydraulic Mechanical Drilling Jar

Payment Terms:        T/T, L/C
Port:                           China Port
Machine Type:           Drilling Tool
Brand Name:              TIANHE
Material:                     Carbon Steel
Packing:                     Steel shelf or Wooden cases

Product Details

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1.     Description
           Type JYSZ hydraulic mechanical drilling
    jar is a new kind of drilling jar which is
    integrated the principles both of hydraulic
    and mechanical in one body. When used,
    it goes downhole with BHA. For some
    reason blocked or stuck occurs in
    downhole in the process of drilling, the
    operator can lift or lower the drilling string
    on the drilling platform to make the drilling
    jar provide a huge impact and strike
    upward or downward to free the jar so
    that the drillng operation could be
    resumed quickly. Avoiding the blocked or
    stuck evolves into an accident, resulting
    in greater economic losses.
       Type JYSZ hydraulic mechanical
    drilling jar is suitable to work in relatively
    harsh environment, and its mechanical
    lock unit is not affected by the torque.
    The jar has the advantages of simple
    operation, big shock force, convenient
    adjustment, high connection strength,
    stable performance, safety and reliability,
    convenient maintenance and so on many
    merits. Operated properly, it can avoid
    unexpected strike effectively, no need any
    safety clamps or other special actions on
    the drilling or tripping. The operator can
    adjust the release force of jarring up or
    down on the drilling platform
    dynamically.Fully sealed oil bath
    lubrication is helpful to reduce wear and
    tear, thus improve the service life. In
    addition, the jar should be connected in
    the equilibrium point of the BHA to keep
    the jar in tension or in compression to
    make it meet the needs of various
    working conditions such as the land and
    the sea (including the underbalanced
    drilling), when used in downhole. It is an
    ideal tool for controlled for directional well
    and horizontal well. Our company
    production of type JYSZ hydraulic
    mechanical drilling jar see figure 1.
                                                  Figure1      Type JYSZ Hydraulic Mechanical Drilling Jar
2.     Main Structure
      The drilling jar is a hydraulic-mechanical
    type, the upward jarring unit consists of a
    hydraulic barrel, a metering valve and is
    located in the lower part of the drilling jar.
    The downward jarring unit consists of the
    grapple, spring and is located in the
    upper part of the drilling jar (as shown in
    figure 2).
      Table 1 is shown the technical
    specification and performance
    paraments of type JYSZ hydraulic
    mechanical drilling jar. 

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