Self-Propelled Hoists
Well logging hoists are intended for carrying out round-trip operations upon geophysical survey in wildcat, exploration and
production wells for oil and gas up to 7000 m deep with the logging cable maximal diameter of up to 36 mm.
The self-propelled well logging hoist (SPWLH) is mounted onto mobile platforms of all-terrain vehicles produced by URAL,
KAMAZ, MAZ, IVECO and other manufacturers.
The SPWLH hoist consists of the following parts:
- Motor vehicle chassis;
- Body;
- Tripping unit;
- Free-running generator;
- Round-trip operations control system;
- Tool for measuring depth, speed and tension of cable;
- Spare parts and accessories kit.
The hoist can be operated at an ambient temperature range of –45°С to +50°С and at relative humidity of 80% at +15°С
The hoist tripping units are subdivided into the following types:
By drive type:

Mechanical (M):
- Speed-reducing gear 2SKTS-4;
- Differential speed-reducing gear;
- Reverse reducing gear.


Hydraulic (H);
Electrical (E)
By drum capacity:
- The tripping units are subdivided based on operating depth of well prospecting, in km: 2.0; 3.5; 5.0; 7.0.
By type of material to be spooled on the drum:
- Logging cable (LC);
- Slick line (SL);
- Rigid cable to survey horizontal wells (HW);
- Combined: logging cable and slick line (CL).
Example of labeling: SPWLH-3.5E-CL (Self-propelled electrically-driven well logging hoist to survey wells having depth of up to
3500 m equipped with winches for cable and line).
The equipment to be supplied is provided with all approvals: Vehicle Type Approval (VTA), Permit for Use, and
Certificate of Compliance.
SPWLH–3,5E
SPWLH–3,5E Well Logging Hoist with Electric Drive.
URAL, KAMAZ 6х6
Mobole platform
Winch
Drive
Electrical, asynchronous with frequency converter, 55 kW
power
Transmission
Planetary speed reducer with chain gear or speed reducer
built-in into the drum.
Two
Number of sections
One
Section 1
3700 m / 12.3 mm
Drum
Volume / cable diameter
Section 2
2200 m / 12.3
mm
5100 m / 10.2 mm
3300 m / 10.2
mm
7500 m / 8.4 mm
4800 m / 8.4 mm
3500 m / 6.3 mm
Cable laying
Automatic, adjusted screw cable-laying machine with electric
drive
Brake system
Electric drive and pneumatic continuously controlled band
brake.
Hoist power supply
50 kW free-running generator with drive from the additional
power take-off case / 380 V external three-phase network
Body
Solid-metal or made of sandwich panels
Operating temperature range
From -45ºС to +50ºС
Length, mm
5800
Width, mm
2500
Height, mm
2200
Availability of places for geophysical tools
Up to 16 pieces.
Availability of places for radiation sources
2 pieces.
Laboratory module
Isothermal, with diesel-powered heater, air conditioner, floor
heating, suction-and-exhaust ventilation
Length, mm
2700
Width, mm
2350
Height, mm
1900
Unit applications
Control of excavation, survey of drilled wells, injection wells,
swabbing
Pulling forces and speeds
Pulling force by a Pulling force by a
Range of cable speed nominal speed of engine maximum
speed
of
change,
rotation, kN / cable engine rotation, kN /
m/ hr
speed, m/hr
cable speed, m/hr
1st range
In the first two rows of winding
40-2500
By winding 12.3 mm cable on 3500 m
40-5000
drum.
nd
2 range
In the first two rows of winding
1000-5000
By winding 12.3 mm cable on 3500 m
1000-10000
drum.
60/1400
24/2500
30/2800
12/5000
44/2800
18/5000
22/5600
10/10000
SPWLH–3,5E–CL
SPWLH–3.5E–CL Well Logging Hoist with Electric Drive.
URAL, KAMAZ 6х6
Mobile platform
Winch for the cable
Drive
Electrical, asynchronous with frequency converter, 18.5
kW power
Brake system
Electric drive and pneumatic continuously controlled band
brake.
Drum
Volume
/ cable diameter
2200 m / 10/2 mm; 3500 m / 8.4 mm; 5500 m / 6.3 mm
Cable laying
Automatic, adjusted screw cable-laying machine with
electric drive.
Transmission
Planetary speed reducer with chain gear or speed
reducer built-in into the drum.
Additional winch for the wire
Motorized drum, 4 kW
Volume / wire diameter
5200 m / up to 2.2 mm
Brake system
Continuously controlled electrohydraulic
shoe brake
Hoist power supply
30 kW free-running generator with drive from the
additional power take-off case / 380 V External threephase network.
Body
Solid-metal or made of sandwich panels
Operating temperature range
From -45ºС to +50ºС
Length, mm
5800
Width, mm
2500
Height, mm
2200
Availability of places for geophysical tools
Up to 16 pieces.
Availability of places for radiation sources
2 pieces.
Laboratory module
Isothermal, with diesel-powered heater, air conditioner,
floor heating, suction-and-exhaust ventilation
Length, mm
2700
Width, mm
2350
Height, mm
1900
Unit applications
Control of excavation, surveys of injection wells.
Pulling forces and speeds
Range of cable speed Pulling force by a nominal Pulling force by a maximal
change,
speed of engine rotation, speed of engine rotation,
m/hr
kN / cable speed, m/hr
kN / cable speed, m/hr
Winch for the cable: 1st range
In the first two rows of winding
40-2500
At the maximum diameter of the
40-4000
drum winding
nd
Winch for the cable: 2 range
In the first two rows of winding
100-5000
At the maximum diameter of the
100-8000
drum winding
Winch for the wire
In the first two rows of winding
50-7200
By winding of 5000 m
50-8400
30/1400
12/2500
18/2250
7,5/4000
22/2800
9/5000
13.5/4500
6.2/8000
3.5/3600
3/4200
1.4/7200
1.2/8400
SPWLH–3,5E–L
SPWLH-3,5E-02L Well Logging Hoist with Electric Drive.
Mobile platform
Winch
Drive
Transmission
GAZ 3308 (Sadko)
3
removable Volume / wire diameter
drums
Volume / cable diameter
Cable laying
Brake system
5200 m / 2.2 mm
Hoist power supply
Speed of wire moving on the mean
Electrical, asynchronous with frequency converter, 4 kW power
Parallel-shaft motorized speed reducer
3500 m / 3.6 mm
Automatic, adjusted, with electric drive
With an electric motor and band brake
Free-running 6 kW petrol-powered generator / 380 V External
three-phase network.
50-8000
winding diameter, meter per hour
In the first two rows of 4 kN
Maximum pulling force, winding
minimum
On the drum wholly
2 kN
covered
Body
Solid-metal or made of sandwich panels
Operating temperature range
From -45ºС to +50ºС
Length, mm
3500
Width, mm
2400
Height, mm
2000
Containers for geophysical tools
8 pieces
Isothermal, with petrol-powered heater, air exhauster.
Laboratory module
At the customer’s option it can be equipped with air conditioner,
floor heating.
Length, mm
1670
Width, mm
2270
Height, mm
1800
Range of application
Control of excavation, survey of injection wells.
SPWLH–5M
SPWLH – 5 Well Logging Hoist with Mechanical Drive
URAL 4320-1951-40 6х6, URAL 43203-41 6х6,
KAMAZ 43118 6х6, 43114 6х6
Mobile platform
Winch
Two
Number of sections
One
Section 1
Section 2
2500 m / 14.4 mm
5200 m / 6.3
Drum
Volume
/
cable
3700 m /14.4 mm
diameter
5200 m /12.3 mm
3100 m / 12.3 mm
7200 m/ 10.2 mm
4500 m / 10.2 mm
mm
Drive
Mechanical
Transmission
Speed reducer 2SKTs-4, chain gear
Cable laying
Automatic, adjusted screw cable-laying machine with 24 V
electric drive
Brake system
Pneumatic normally-closed, electromechanical continuously
controlled brake
Availability of free running
Available
Hoist power supply
24 V onboard network / 220 V external network / free-running
generator
Maximum power consumed from the external
network
~ 5.5 kW
Body
Solid-metal or made of sandwich panels
Operating temperature range
From -40ºС to +50ºС
Length, mm
5800
Width, mm
2500
Height, mm
2100
Availability of places for geophysical tools
Up to 16 pieces.
Availability of places for radiation sources
containers
2 pieces.
Laboratory module
Isothermal, with diesel-powered heater, air conditioner, floor
heating, suction-and-exhaust ventilation.
Length (min), mm
2700
Width (min), mm
2350
Height (min), mm
1900
Unit applications
Surveys of drilled wells, excavation, injection wells, swabbing
In addition it is possible to mount an electro pneumatic backup switch gear.
Pulling forces and speeds
Range of cable speed change on Pulling force on the Pulling force in case of a
the mean winding diameter,
second winding layer, maximum diameter of the cable
m/hr
kN
winding onto the drum, kN
In case of winding up 100-8000
60
30
In case of forced
100-1000
lowering
SPWLH–5G
SPWLH–5G Well Logging Hoist with Hydraulic Drive.
URAL, KAMAZ 6х6
Mobile platform
Winch
Drive
Hydraulic from the additional power take-off case /
Transmission
Planetary gear reducer built-in into the drum
Two
Number of sections
One
Section 1
3700
mm
m
/14.4
2500 m / 14.4
mm
5200
mm
m
/12.3
3100 m / 12.3
mm
7200
mm
m
/10,2
4500 m / 10,2
mm
Section 2
Drum
Volume / cable diameter
5200 m/ 6.3 mm
Cable laying
Cable laying with proportional operation due to the
hydraulic cylinder with manual adjusting or screw cablelaying machine with hydraulic drive
Brake system
Hydraulic brake built-in into the gear reducer, pneumatic
continuously controlled band brake.
Hoist power supply
Control – 24 V onboard network
Additional equipment – 220 V external network / freerunning generator
Maximum power consumed from the network
~ 5.5 kW
Body
Solid-metal or made of sandwich panels
Operating temperature range
from -40ºС to +50ºС
Length, mm
5800
Width, mm
2500
Height, mm
2100
Availability of places for geophysical tools
Up to 16 pieces.
Availability of places for radiation sources
2 pieces.
Laboratory module
Isothermal, with diesel-powered heater, air conditioner,
floor heating, suction-and-exhaust ventilation
Length (minimum) mm
2700
Width (minimum), mm
2350
Height (minimum), mm
1900
Range of application
Survey of drilled wells, control of excavation, survey of
injection wells, swabbing
Pulling forces and speeds
1st range
2nd range
Pulling force in case of
Range of cable speed change on the mean Pulling force on the
a maximum diameter of
winding diameter,
second winding layer,
the cable winding onto
m/hr
kN
the drum, kN
40-3500
70
30
200-10000
35
15
SPWLH-5G-GS
SPWLH-5G-GS (SPWLH-7G) Well Logging Hoist with Hydraulic Drive
KAMAZ (6х6), KAMAZ (8х8), URAL (6х6), URAL
(8х8)
Mobile platforms
Winch
Drive
Hydraulic from the additional power take-off case
Transmission
Planetary gear reducer built-in into the drum
Drum
Volume / cable diameter
1800/d=35 mm + 2200/d=16.4 mm
9000 m /d=14. 4 mm
4000 m / d=21 mm
Cable laying
Cable laying with proportional operation due to the
hydraulic cylinder with manual adjusting or screw
cable-laying machine with hydraulic drive
Brake system
Hydraulic brake built-in into gear reducer, pneumatic
continuously controlled band brake.
Hoist power supply
Control – 24 V onboard network
Additional equipment – 220 V external network / freerunning generator
Maximum power consumed from the network
~ 5.5 kW
Body
Solid-metal or made of sandwich panels
Operating temperature range
From -40ºС to +50ºС
Length, mm
6200
Width, mm
2500
Height, mm
2200
Availability of places for geophysical tools
Up to 16 pieces.
Availability of places for radiation sources
2 pieces.
Laboratory module
Isothermal, with diesel-powered heater, air conditioner,
floor heating, suction-and-exhaust ventilation
Length, mm
3000
Width, mm
2380
Height, mm
1900
Unit applications
Surveys of horizontal and rat hole wells, swabbing.
Pulling Forces and Speeds.
1st range
2nd range
Pulling force in case of
Pulling force on the
Range of cable speed change on the
a
maximum
second
spooling
mean winding diameter,
cable spooling onto the
layer, kN
m/hr
drum, kN
40-4200
150
65
400-9000
70
30
SPWLH–7G
SPWLH – 7G Well Logging Hoist with Hydraulic Drive.
Ural-Iveco 632901 (6 x 6), (URAL 4320-1951-40 6х6,
URAL 5323-61 8х8), KAMAZ 43118 6х6
Mobile platform
Winch
Drive
Hydraulic from the additional power take-off case
Transmission
Planetary gear reducer built-in into the drum
Two
Number of sections
One
Section 1
5500 m/14.4
mm
3650 m/14.4
mm
7200 m/12.3
mm
5150 m/12.3
mm
10200 m /
10.2 mm
7650 m/10.2
mm
Section 2
Drum
Volume / cable
diameter
6400 m/6.3 mm
Cable laying
Cable laying with proportional operation due to
hydraulic cylinder with manual adjusting or screw
cable-laying machine with hydraulic drive
Brake system
Hydraulic brake built-in into gear reducer, pneumatic
continuously controlled band brake
Hoist power supply
Control – 24 V onboard network
Additional equipment – 220 V external network/
free-running generator
Maximum power consumed from the
network
~ 5.5 kW
Body
Solid-metal or made of sandwich panels
Operating temperature range
from -40ºС up +50ºС
Length, mm
6400
Width, mm
2500
Height, mm
2200
Availability of places for geophysical
tools
Up to 16 pieces
Availability of places for radiation
sources
2 pieces
Laboratory module
Isothermal, with diesel-powered heater, air
conditioner, floor heating, suction-and-exhaust
ventilation
Length, mm
3000
Width, mm
2350
Height, mm
2000
Unit applications
Swabbing, survey of drilled wells, control of
excavation, surveys of injection wells.
Pulling Forces and Speeds
1st range
2nd range
Range of cable speed change on the
mean winding diameter,
m/hr
40-3500
200-10000
Pulling force in case
Pulling force on the
of a maximum cable
second winding
winding onto the
layer, kN
drum, kN
100
50
70
25
Reverse Gear Reducer
Shown below is a double-speed angle-change reverse gear reducer newly developed by our company
It is installed in place of the traditional 2SKTs-4 gear reducer and has some significant advantages in comparison with the latter.
It has a wider range of operating speeds and a reverse mechanism. One purely mechanical appliance ensures the chassis
drive controlled device lowering into the well from its head all the way down at high speed, rather slow stable speeds
of device's movement while well logging both upon lowering and hoisting (starting from 40 m/hr), and mode of cable
lowering into the well under the effect of its own weight.
A double-speed angle-change reverse gear reducer is developed based on imported constituent parts and in-house modules. It
is based on planetaries, as a result is considerably lighter than the 2SKTS-4-gear reducer it replaces.
Another option for improving the traditional mechanical drive design is the use of new possibilities provided by new transmission
modules proposed by mobile platform manufacturers. This is a reversing power take-off case for KamAZ truck chassis which is
being prepared for launch and reduction gear already manufactured for this platform. The first of these modules ensures a wide
speed range of the cable movement while lowering, and the second one ensures achievement of rather slow well logging
speeds, and increased rough-terrain performance due to reducing minimal speeds of chassis movement of the KamAZ car
important for well logging hoists.
All new developments related to the mechanical drive are designed by our company in such a way that they may be used in both
new cars and as an upgrade to traditional mechanical hoists. We can upgrade almost any old-model mechanical hoist,
equipping it with improved transmission and an automated control system. This allows us to restore the machine’s resource,
while modernizing it to a qualitatively new level.