HYDRAULIC ROTARY CASING GUIDER

TECHNICAL SUMMARY

When the casing encounters a well shoulder during its run in holw, the self-rotating design of the guide shoe automatically changes direction, guiding the casing smoothly into the well. Since the guide shoe rotates using fluid, if mud cake, sand particles accumulate, or there is localized wellbore contraction, drilling fluid can be pumped in to circulate and rotate the guide head to remove the mud cake or sand particles, thus guiding the casing to continue running.

ROTARY CASING GUIDER

Model

CGS131/114

CGS146/127

CGS166/140

CGS200/178

CGS276/244

Body O.D.(mm)

127

142

160

195

270

Body O.D.(including roller) (mm)

131

146

166

200

276

Length (mm)

600

620

640

700

800

Circulation Aperture (mm)

40

50

55

70

80

Applicable casing size (mm)

114.3

127

139.7

177.8

244.5

Discharge Capacity (1/s)

20-28

20-28

20-28

20-28

20-28

Operating drilling rate (r/min)

800-1100

800-1100

800-1100

800-1100

800-1100

Torque (NM)

100-140

125-190

230-350

350-500

450-600

Tensile strength (t)

50

60

65

80

100

Connection

4 1/2"

5

5 1/2

7"

9 5/8

SPECIFICATION