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Tool Taxi*

  • Suits all wellbores > 8 ½” 
  • Lowest friction in class (6” wheels)
  • Active bearing lubrication system
  • Wheels do not jam with cuttings.
  • Enables logging up to 70deg in open hole
  • Orientates logging tool sensors
  • Fits to the outside of logging tool housings
  • Positively secured to C-spanner holes
  • Available with ½” and 1 ½” standoff
  • Light, robust, transportable and easily serviced
 

Tool Guide*

  • Suitable for all hole sizes – adjustable nose angle
  • Attaches to all through wired logging tools
  • Will ski over a step ledges 4 ½” high (in 8 ½” hole)
  • Bespoke Guides available for “bottom only” tools
  • Light & transportable (1m & <15kg)
  • Low maintenance

*patents pending

 

 

TOOL TAXI specifications

 

 

Model
TTA 35805
TTA 35815
Maximum Temperature
245degC ( depending on diaphragm material)
Maximum pressure
(30.000psi) unlimited
Minimum hole size
8 ½”
Maximum hole size
17 ½”
Tool Taxi diameter
7 1/4”
Wheel diameter
6”
Logging tool housing size
3 5/8” & 3 3/8" (with sleeve)
Standoff  of tool housing
1/2 in
1 1/2 in
Material - body, wheels & rails  stainless steel, 17-4 PH, heat treated H900
Material (diaphragm)   Oil muds (<110degC) Nitrile  65 Shore A. Elongation at break 400%, 110degC 
Oil muds (>110degC) Viton 72 Shore A. Elongation at break 250%, 245degC 
Water muds (<50degC) Silicone (black)  70 Shore A. Elongation at break 400%, 110degC 
Water muds Silicone (grey) 50 Shore A. Elongation at break 600%, 260degC 
Fastenings  304 Stainless steel.  UNC threads.  Imperial hex keys required ¼”, 3/16”
Grease for lubrication unit Lubriplate 930AA. Uses up to 70cc per run depending on temperature and duration.

 

 

 

 

 

STANDOFF with hole size
Logging tool housing size ½”  Tool Taxi 1 ½” Tool Taxi
3 3/8” 3 5/8” 3 3/8” 3 5/8”
Standoff 8 ½” wellbore 0.63in 0.50in 1.63in 1.50in
Standoff 12 ¼” wellbore 0.46in 0.34in  1.46in 1.34in

 

GUIDE specifications

Model

Tool Guide AHF C

Maximum temperature

>180degC ( higher for aluminium nose)

Maximum pressure

(30,000psi) unlimited

Min/max hole size

5” /No limit

Maximum diameter

4” (no-go collar)

Angle settings

3, 4, 6, and 9deg.

Step ledge capability

Up to 4 ½” depending on setting

Body size, material

3 3/8”, 17-4 PH stainless steel, heat treated H900.

Pivot pin

2205 stainless steel(duplex), 16mm dia

Angle setting pin

2205 stainless steel(duplex), 16mm dia

Comp. strength rating

18,000 lbf (50% safety factor , pin shear strength)

Nose material

aluminium or carbon fibre/kevlar

 

 

 

LEDGE capability - Recommended maximum settings

 

Hole Size

Standoff

6”

8 ½”

12 ¼”

0”

4deg

2.2”

9deg

4.5”

9deg

4.5”

¾”

3deg

2.5”

6deg

3.8”

9deg

5.2”

1 ½”

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6deg

4.5”

9deg

6.0”

2 ½”

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9deg

7.0”

 


Stephen McCormick | Managing Director | Petromac Limited
Auckland, New Zealand Mob +64(0)210549158 Tel +64(0)95366621 Email steve@petromac.co.nz