JKH-1 Dual Induction Probe | Geotech Instrument Co., Ltd.

PRODUCT PARAMETERS

The microcontroller (MCU) automatically compensates according to temperature changes.
High stability and extremely wide dynamic range.

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Description

FAQ

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Description

Abstract

JKH-1 Dual Induction Probe can provide two conductivity logging curves at the same time, corresponding to the formation conductivity curves within the “middle” and “deep” radius of the borehole. In formations with good permeability, after the well fluid replaces the in-situ fluid of the formation, an invasion layer with different electrical parameters will be formed, and formation mineralization logging is particularly effective.

The probe has high stability and an extremely wide dynamic range, and performs accurate conductivity measurements in sand-clay layers and highly mineralized diffuse sand formations. Unlike other resistivity probes, induction logging probes can be used in dry holes and non-metallic cased wells.

Applicable Conditions

● Bare Dry hole

● Non-metallic Cased

Applications

● Evaluate the penetration rate and pore degree of the strata

● Evaluate the mineralization of ground water

● Long -term monitoring of oil wells

● Mine -layer recognition

Features

● The microcontroller (MCU) automatically compensates according to temperature changes.

● High stability and extremely wide dynamic range.

Specifications

Work frequency	~ 40Hz
Visual guide rate	3 ~ 2000ms/m
Precision	<3% F.S.
Stability	<0.5ms/10 ℃
Ground current	0 ~ 120mA
Signal output	Bipolar encoding

FAQ

In gravity exploration (SI), what is the unit of gravity? How to convert gravity units between SI and CGS?

What are gravitational field and gravitational potential?

What is the normal gravity field of the earth? What are the rules for the change of the normal gravity field with latitude and altitude?

① The normal gravity field of the earth: Assuming that the earth is a rotating ellipsoid (reference plane), the surface is glossy, the internal density is uniform, or it is distributed in concentric layers, the density of each layer is uniform, and the deviation of the shape of the ellipsoid from the geoid is very small, then the gravity field generated by the earth is the normal gravity field.
② The normal gravity value is only related to the latitude, the smallest at the equator and the largest at the poles, with a difference of about 50,000 g.u.; the rate of change of the normal gravity value with latitude is the largest at 45° latitude, and zero at the equator and the poles; the normal gravity value decreases with increasing altitude, and its rate of change is -3.086 g.u.. The main feature of the long-term change is the "westward drift" of the geomagnetic elements, both the dipole field and the non-dipole field drift westward, and have a global nature.

What is the relationship between gravitational field strength and gravitational acceleration?

What is gravity exploration?