Geophysical Borehole Logging Tool Well Logging Equipment

Geophysical Borehole Logging Tool Well Logging Equipment Downhole Logging Unit Wireline Logging

In order to ensure the accuracy of the survey data of the drilling wells in the monitoring wells, improve the quality, results and benefits of the geological work, the integrated hydrological and natural gamma logging work is carried out on the monitoring wells. The main tasks are: according to the apparent resistivity curve and The natural gamma curve shape divides the formation lithology, determines the location and thickness of the aquifer, corrects the borehole geological section, and quantitatively estimates the formation rock resistivity parameter and the natural gamma per second count rate.

Why resistivity is important in logging
The resistivity of a rock is determined by the following factors:
1. Rock mineral composition
2. The chemical composition, concentration and temperature of the electrolyte in the formation water within the rock porosity.
3. Rock porosity
4. The oil saturation of the rock.

Geophysical Borehole Logging Tool Well Logging Equipment Downhole Logging Unit Wireline Logging
Knowing this, you should understand that if you know the resistivity and then combine some other parameters, you can easily explain the log curve, oil saturation, lithology, etc., sonic and radiometric porosity, resistivity measurement is in the log. The most basic and most important.

Features & Benefits

1 ,Versatile, ubiquitous probe which functions with a wide range of applications and borehole conditions.

2 ,Gamma probes with other scintillation materials and sizes can be custom made for your application.

Applications

Bed boundary analysis

Facies changes

Coarsening/ Fining Sequences

Identify Clay Aquitards

Aquifer Thickness

Uranium Concentration

Parameter

1. Natural gamma sensor :NaI Crystal

2. Measuring Range :

Natural gamma :0~32768cps

3. Measurement Accuracy :5%(F.S)

4.Energy Threshold :≥0.06MeV

5. Environmental : Temperature<80℃;Pressure<20MPa

6.Signal: bipolar codes