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Multi-Scenario Application Well Logging Equipment With Resistivity Logging Probe Density Logging Probe
Product Description
Geophysical GDQ-2D borehole logging equipment accurately identifies freshwater pay zones in groundwater exploration at depths of 100 to 3000 meters through logs. Equipped with a basic combination of gamma and electrical logging probes, the borehole logging equipment can accurately identify freshwater formations, accurately map their thickness, and reveal clay lenses or saltwater intrusion. Its resistivity probes measure gradient resistivity, normal resistivity, and SP simultaneously, providing more comprehensive formation information. The borehole logging equipment is suitable for drilling bare casing holes and operating in water or mud environment. It is light in weight, simple in operation and maintenance, connected pipe and wire, earthquake-resistant to temperature and moisture, and has high reliability. The device can measure more than 20 parameters and is widely used in metal ore, coal, oil field, radioactivity, hydrology and other fields.
System composition
Ground system: It is the control center and data processing center
of the entire logging CNC equipment, usually installed in the
ground control room of the logging vehicle or well site. It mainly
includes computer system, operation console, data storage device,
communication interface, etc. The ground system is responsible for
sending control instructions to the downhole instrument, receiving
data uploaded by the downhole instrument, and processing,
displaying, storing and transmitting the data in real time.
Downhole instrument: It is a combination of sensors directly
lowered into the wellbore to measure the physical parameters of the
formation. According to different measurement functions, downhole
instruments can be divided into many types, such as resistivity
logging instrument, acoustic logging instrument, density logging
instrument, neutron logging instrument, etc. These downhole
instruments usually have high-precision sensors and electronic
circuits, which can accurately measure and collect various physical
signals under harsh environmental conditions underground, and
convert them into digital signals and transmit them to the ground
system through cables.
Cable transmission system: It is mainly composed of logging cable,
winch and cable bridle. Logging cable is a key component connecting
the ground system and downhole instruments. It not only bears the
weight of downhole instruments, but also transmits power, control
signals and data signals between downhole instruments and ground
systems. The winch is used to control the lifting and lowering of
the logging cable so that the downhole instrument can measure at
different depths in the wellbore. The cable bridle is a special
connector that connects the logging cable and the downhole
instrument. It has functions such as sealing, insulation and
mechanical connection to ensure reliable connection and signal
transmission between the downhole instrument and the cable.
Features
High-precision measurement: Using advanced sensor technology and signal processing algorithms,
it can perform high-precision measurements on physical parameters
such as resistivity, acoustic wave time difference, density, and
neutron porosity of downhole formations. The measurement accuracy
can reach several decimal places or even higher, providing accurate
data support for geological analysis and reservoir evaluation.
Multiple measurement modes: With multiple measurement modes and functions, different downhole
instrument combinations and measurement parameters can be flexibly
selected according to different geological conditions and
exploration needs to achieve comprehensive and detailed
measurements of downhole formations. For example, when conducting
conventional logging, multiple parameters such as resistivity,
acoustic waves, and density can be measured simultaneously; when
conducting special logging, such as imaging logging and nuclear
magnetic resonance logging, more detailed and intuitive formation
information can be obtained.
Real-time data transmission and processing: Through a high-speed cable transmission system, the data measured
by downhole instruments can be transmitted to the ground system in
real time, and processed and displayed in real time in the ground
system. Geological engineers and logging operators can observe the
changes in physical parameters of downhole formations in real time
on site, and adjust measurement plans and parameters in time to
ensure the smooth progress of logging work and data quality.
Data storage and management: Equipped with large-capacity data storage devices, it can store a
large amount of data obtained during the logging process for a long
time and stably. At the same time, it has perfect data management
functions, which can classify, retrieve, query and back up the
stored data, and facilitate subsequent data processing, analysis
and interpretation.
Remote monitoring and diagnosis: Some advanced logging CNC equipment also has remote monitoring and
diagnosis functions. Through network communication technology, the
well logging data and equipment status information of the well site
can be transmitted to the remote control center in real time.
Technical experts can monitor and guide the logging process in real
time remotely, and solve problems that arise during the logging
process in a timely manner. At the same time, the equipment can
also be remotely diagnosed and maintained to improve the
reliability and operation efficiency of the equipment.
Geophysical Well Logging Probe:
Caliper
Natural gamma
Single-point electric
Fluid resistivity
Fluid temperature
Flowmeter
Density
Neutron