Buckle type

Specification range (mm)

Structural features

Typical use

HSM-2

60.32~339.72

Hook thread; optimized thread guide clearance and torque shoulder structure; reverse shoulder; cone metal/metal seal

Can be used for ultra-deep wells, large displacement wells, high temperature and high pressure gas wells and other complex conditions

HSM-2-HC

127.00~244.48

Hook thread; optimized thread guide clearance and torque shoulder structure; reverse shoulder; conical metal/metal seal; increased shoulder thickness

It can be used for ultra-deep wells, high temperature and high pressure gas wells, inclined horizontal wells, shale gas wells and complex working conditions such as string rotation.

HSG3

127.00-374.65

Optimized hook thread to increase the positive angle of the guide surface; combined seal structure design

Can be used for ultra-deep wells, high temperature and high pressure gas wells, as well as inclined wells, horizontal wells, large displacement wells and other complex well conditions

HSTS

60.32~114.30

Two-stage cylindrical thread; double shoulder design; metal/metal seal structure; internal and external thickening direct connection type

Can be used for deep wells, high pressure wells, horizontal wells, and other harsh service environment

HSFJ

73.02~298.45

Hook-shaped thread; the outer diameter of the joint is the same as the outer diameter of the pipe body; the inner and outer double conical surface sealing structure; the flat end direct connection type

It can be used in well conditions with special requirements for annular space gap and connection strength

HSG3-FJ

114.30~298.45

Optimized hook thread to increase the positive angle of the guide surface; External cone seal, internal combined seal structure, thick wall direct connection type

It can be used in complex well conditions such as salt rock formation, paste rock formation, inclined well, horizontal well, large displacement well and requirements for annular space gap.

HSQR

339.72~508.00

Large angle guide surface; large pitch; large taper; thread seal

It can be used for catheters, watch covers, technical covers, etc. that require fast fastening.

HSN

114.30~339.72

Adopt API eccentric ladder thread structure, can be interchanged with APIBC thread; thread seal; inner right angle shoulder; inner smooth design

Can be used for rotary liner cementing and well conditions that need to be interchanged with APIBC threads