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  • Releasing And Reversing Overshots - China

    price: contact company for price

    Type DLT-T Releasable Reversing Overshot, a new type of

    fishing tool, has many advantages owned by various overshot,

    box tap and the like, Its distinguishing features are as

    follows: to unscrew and recover the stuck fish: To release

    the fish down hole if necessary, to circulate the washing

    fluid as one of the accessories for reversing tools, it is

    widely used in well servicing.

    Structure and application

    Is consisting of top sub, spring, bowl, retaining seat,

    slip, control key, seal ring, seal seat, guide and so on.

    The upper end of top sub is connected with other tools and

    drill tool: The lower end of top sub is connected with bowl

    equipped with spring in the interior, There are three control

    keys uniformly distributed in the inner wall of the upper

    end of bowl, the control keys are used to control the

    position of retaining seat, Three keys are inserted

    separately in three grooves in the tapered interior section

    of lower end in bowl where three keys are used to transmit

    torque, The tapered interior section produces a pinch force

    against the slip to effect the fishing operation. The

    reversed operation can be effected when three keys transfer

    the torque from bowl to slip.The inclined angle among three

    control keys play an important role in retaining of slip

    conforming with bowl to ensure that the tools can be

    released easily from fish.

    The retaining seat is installed at the upper end of external

    bowl where three keys are placed, the retaining seat not

    only can slide axially but also rotate round axial line so

    as to move with slip which is installed in internal circular

    recess.

    Specifications - Releasing and Reversing Overshot

    Model

    O.D.

    (mm)

    Catch size

    Allowable Pulling Force

    (KN)

    Start Pulling Force and Torque

    ThreadConn.(LH)

    Tensile Force (KN)

    Torque (N.m)

    DLT-T48

    95

    47.0-49.3

    250

    117.7

    3089

    2 7/8 REG

    DLT-T60

    105

    59.7-61.3

    350

    147.1

    5737

    2 3/8 IF (NC26)

    DLT-T73

    114

    72.0-74.5

    420

    176.5

    7750

    2 7/8 IF (NC31)

    DLT-T89

    134

    88-91

    500

    10233

    3 1/2 IF (NC38)

    DLT-T102

    145

    101-104

    700

    196

    11032

    DLT-T114

    160

    113-115

    890

    12151

    DLT-T127

    185

    126-129

    1200

    235

    13483

    4 1/2 IF (NC50)

    DLT-T140

    200

    139-142

    1500

    15298


    Company Contact:


    • Phone: 00862131150073

    • Address: No.2999 Xinyang Road,Fengxian District, Shanghai, China

    • Email: Email


    Published date: January 9, 2014 -

    • Business Description: Tianhe Oil Group is a comprehensive enterprise of equipment

      manufacturing and oilfield service providing. The company is specialized

      in innovation, manufacture and sales of drill and petroleum extraction

      tools, equipments and oil field services.

      Tianhe Oil Group is the council member of CPEIA (China Petroleum and Equipment Industry Association), rewarded as national level of Hi Tech enterprise. The company is a Chinese well known trademark enterprise. It has been certified to ISO, API, NS 1, and HSE management system.

      The company has developed a strong domestic sales network covering all oilfields of CNPC, SINOPEC and CNOOC. Currently, our products and equipments have been exported to 45 countries, overseas business has covered 80% of our company sales.

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