Mechanical release joint

A mechanical release joint is used to separate upon a preset pull‑out force when the downhole tool becomes stuck, allowing the upper section to be retrieved. Subsequently, a higher‑strength fishing tool is employed to recover the lower section. In the event of a stuck condition, the joint is released by applying an upward pull that shears the shear pins. The magnitude of the release pull can be adjusted by varying the number of shear pins. The interlocking, cross‑type design of the upper and lower connectors enables torque transmission.
Consultation
Mechanical release joint
Product Specifications
 

Product Number

Tool outer diameter

Minimum inner diameter

Recovery neck specification

Upper and lower connector thread specifications

(in)

(in)

D97-1168-700

1.687

0.500

2" GS

1” AMMT

D97-1175-700

1.750

D97-1212-700

2.250

0.750

2 1/2”GS

1.5” AMMT

D97-1212-703

2.250

0.750

1.90”NU

D97-1237-700

2.375

1.000

1.5” AMMT

D97-1287-700

2.875

1.250”

3”GS

2 3/8” PAC

D97-1312-700

3.125

3.5”GS

D97-1375-701

3.750

2.125

4”GS

2 7/8”EUE

 

 

Product Features

 

  • Shear force can be pre-adjusted;
  • The built-in standard GS-type retrieval neck facilitates retrieval.
  • Capable of transmitting torque;
  • Maximum operating temperature: 180°C;
  • Maximum working pressure: 70 MPa;
  • Various buckle types are available;
  • Materials suitable for H2S environments are available.

 

 

Mechanical release joint

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