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Specifications

Model ZDQ Hydroscillator

 

Model ZDQ hydroscillator improves the effectiveness of bit pressure transmission and frictional resistance between BHA (the pit bottom assembly like drill bit, centering guide, extra-heavy drill rod ( drilling tools) except for ordinary drilling rod in drilling process by the longitudinal vibration generated by itself, especially to improve the drilling pressure transmission with a screw, reduce the frictional resistance, cut down the ordinary drilling sticking accidents, increase the dynamic drilling pressure and improve drilling efficiency in directional drilling process.

 

Specifications

 

Model

ZDQ86

ZDQ121

ZDQ172

ZDQ203

Size mm(in)

86(3-3/4)

121(4-3/4)

172(6-3/4)

203(8)

Length m

7.6

7.6

7.9

8.5

Max. Tensile T

80

160

290

430

Max. Temperature ℃

160

160

160

160

Operating Pressure Differential

(psi)

400-650

450-650

500-700

550-700

Connection

2-7/8" REG

NC38

NC50

6-5/8" REG

Displacement Scope l/s

6-10

9-15

25-35

35-55

Pressure excited frequency Hz

19-25

18-19

16-17

16

Recommended Use Life h

120

150

200

300