Deep Borehole logging or Borehole SP, Resistivity, Natural Gamma geophysical well logging Price
GDQ - 2D is a digital logging system specially designed for the convenience of field work, which can connect with various kinds of pipe and log. Because this system uses a series of advanced technology, it improves the use of one ground-based instrument controlling one heavy logging probe into one ground-based instrument controlling various kinds of logging probe, it also includes the deep measurement, the power supply and so on. The instrument has a light weight and simple operation and maintenance, which can be connected to the tube type, which can be aseismatic, temperature-resistant, moistureproof and high reliability. Description
GDQ - 2D integrated digital control logging system is a new generation of digital logging equipment., which based on summarizing more than 20 years in production and successful experience of digital logging equipment's research and development, following the international new trend of development of the small digital logging technology, and combining with China's national conditions. This set of equipment has the following advantages over other similar products:
(1) the measurement parameters are large and the scope is wide.
(2) the reliability is high and the Mean Time Between Failure (MTBF) is long.
(3) portable, convenient for mobile transportation.
(4) operating and maintenance is simple.
The main reason for these advantages is that the design and development is absorbing other's merits, fully considering the variouts needs of the industry, and considering the competitiveness in the international market. GDQ - 2D system can measure than 20 kinds parameters, covered with metal ore, coal, oil field, radioactive, hydrology, and other areas of the various user's requirements, with great cost-effective. Features & Benefits
1. Standardization and modularity
In the GDQ - 2D integrated digital control logging system, both hardware and software, no matter probe or ground box, signal measurement or signal transmission, have adopted the standardization and modularization design concept. The benefits of standardization and modularity Product is excellent in products' consistency , maintainability and reliability. It is convenient to operate and maintain. The accessories are 100 percent universal and can be expanded at any time.
2. Fully underground digital and measurement's signal transmission
All the signals from the underground probe are converted by A/D and sent to the ground after being encoded. The underground probe is a two-way street communication. Digital code transmission measurements greatly improve the anti-jamming capability, and the system itself can correct the error code, which guarantees the quality of the signal transmission.
3. Oversampling technology to obtain the most formation information
The GDQ-2D system uses the sampling method for the collection of formation information. The oversampling amount increases with the decrease of the logging speed, and over sampling ensures the need for digital filtering, enhancing spatial resolution and screening useful information.
4. Small size of the underground probe with high pressure
GDQ - 2D probe is almost diameter Φ40 and Φ50 mm, the appearance of length 1000~1500mm size. The probe is made of stainless steel. Resistance to 20~40 MPa water pressure, temperature of 70 ~ 90 ºC. Special orders can be 60 MPa water pressure resistance, temperature 120 ºC resistance.
Geophysical Well Logging Method :
Wireline well logging is puting logging to bottom of water bores by EMC cable, and then lifted up, the logging data will be recorded during lifting
Geophysical Well Logging Parameters:
1. SP-Spontaneous Potential
Spontaneous potential is the measurement of potential to distinguish between sandstone and mudstone
2. CAL - Well Diameter
The caplier is mearuring size of the well bore. The measured well bore diameter is a visual understanding of the size of the drilled hole
3. AC-Acoustic Wave
The short time that acoustic wave propagate in the stratum indicates that the stratum is relatively dense and hard. On the contrary, the strata are relatively loose
4. Resistivity
Apparent resistivity logging is mainly used to divide the lithological profile of drilling and compare the profiles
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