High Stability Geological Automatic Controlled High Speed
Electrical Lifting Winch With Low Price
Basic concepts and working principles
Definition
The logging electric winch is mainly used to control the lifting
and lowering of the logging cable during the oil logging process.
The motor drives the drum to rotate, thereby realizing the cable
retraction and release. It can accurately send the downhole logging
instrument to the target depth and safely retract the instrument
after the measurement is completed.
Working Principle
The core components are the motor and the drum. The motor provides
power, which is transmitted to the drum through transmission
devices such as reducers. When the motor rotates forward, the drum
rotates clockwise and starts to lower the cable; when the motor
rotates reversely, the drum rotates counterclockwise to retract the
cable. During the rotation of the drum, the cable can be raised and
lowered at a uniform speed by precisely controlling the motor, and
the cable lowering and retrieving speed can be accurately
controlled according to the requirements of the logging depth.
Main functions and uses
Cable retracting function
The most basic function is to be able to smoothly lower the logging
cable to the specified depth in the well according to the
requirements of the logging construction. When retracting the
cable, the cable can be retracted quickly and safely, and the cable
can be guaranteed not to be damaged during the retracting process.
For example, when performing conventional resistivity logging or
acoustic logging, it is necessary to lower the downhole instrument
with the corresponding sensor through the cable to hundreds or even
thousands of meters underground. The logging electric winch can
complete this task well.
Depth control function
The depth position of the logging instrument in the well can be
accurately controlled. In oil exploration, accurate depth
measurement is very important for determining the formation
structure and reservoir location. By combining with the logging
data acquisition system, when the winch lowers the instrument to
the target depth, the data acquisition system can start recording
the corresponding formation parameters, such as formation
resistivity, porosity and other data.
Load adaptation function
It can adapt to different weights of downhole instruments and cable
combinations. Because the types and quantities of downhole
instruments are different in different logging tasks, the load of
the entire logging system varies greatly. The logging electric
winch can adjust the output power of the motor according to the
actual load conditions to ensure safe and stable operation.
Technical indicators and parameters
Lifting capacity
It is generally measured by rated load. For example, some small
logging electric winches may have a rated load of 1-2 tons, while
large winches for deep well logging can have a rated load of 5-10
tons or even higher. Lifting capacity determines the maximum weight
that the winch can lower and recover, including the weight of the
cable and the weight of the downhole instrument.
Cable speed range
The speed range is usually an important parameter. For example, the
speed range can range from 0-3000 meters/hour. Different logging
operations may require different cable lifting and lowering speeds.
A higher speed can be used when initially lowering the instrument,
while a lower speed is required when approaching the target layer
or making fine measurements.
Depth measurement accuracy
The depth measurement accuracy can generally reach ±0.1%-±0.5% of
the depth reading. High-precision depth measurement is essential
for accurately obtaining formation information, especially in the
exploration of thin oil layers or complex formation structures.
Motor power
The motor power depends on the load and speed requirements of the
winch. Common motor powers range from a few kilowatts to tens of
kilowatts. The power directly affects the lifting capacity and
working efficiency of the winch.
| Model | Capacity(m) | Cable OD(inch) | Conductor | Speed(m/h) | Lifting Force(KN) | Auto/Manual |
| DJ0331 | 300 | steel,1/8 | 1 | 600/1200 | 1.8/0.9 | yes |
| DJ0348 | 300 | steel,3/16 | 4 | 600/1200 | 1.8/0.9 | yes |
| DJ0648 | 650 | steel,3/16 | 4 | 800/1960 | 2.6/1.1 | yes |
| DJ1031 | 1000 | steel,1/8 | 1 | 800/1960 | 2.6/1.1 | yes |
| DJ1231 | 1200 | steel,1/8 | 1 | 800/1960 | 2.6/1.1 | yes |
| DJ1048 | 1000 | steel,3/16 | 4 | 800/1800 | 5.9/2.6 | yes |
| DJ2048 | 2000 | steel,3/16 | 4 | 660/1725 | 10/5.1 | yes |
| DJ2548 | 2500 | steel,3/16 | 4 | 660/1725 | 10/5.1 | yes |
| DJ3048 | 3000 | steel,3/16 | 4 | 660/1725 | 10/5.1 | yes |
Certificates
Company information
