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Detection Unit Borehole

Borehole Seismometers | Instrumentation | UNAVCO

Borehole Seismometers | Instrumentation | UNAVCO

Dec 24, 2019 A borehole seismometer unit installed at a proper depth allows for the detection and location of microseisms that can be missed by a surface seismometer. The data set generated by the PBO Borehole Seismic Network has become an integral component to research being done in regional seismic networks, such as those in Anza, California, and

Borehole Geophysics - USGS

Borehole Geophysics - USGS

Borehole geophysics is used in ground-water and environmental investigations to obtain information on well construction, rock lithology and fractures, permeability and porosity, and water quality. The geophysical logging system consists of probes, cable and drawworks, power and processing modules, and data recording units

A novel muon detector for borehole density tomography

A novel muon detector for borehole density tomography

Apr 11, 2017 One alternative, or complement, to these methods is the development of a muon detector that is sufficiently compact and robust for deployment in a borehole. Such a muon detector can enable imaging of density structure to monitor small changes in density –

Development of a borehole stress meter for studying

Development of a borehole stress meter for studying

Feb 24, 2015 The detection unit and vessel are in contact with each other via only an O-ring, and there is no mechanical connection. Therefore, deformation of the vessel does not affect the detection unit, and only the stress applied to the pressure-receiving surfaces is detected. Figure 6 is a photograph of the detection unit showing the horizontal

Borehole logging for detection of deeply buried UXOs

Borehole logging for detection of deeply buried UXOs

Borehole logging for detection of deeply buried UXOs. The challenge. The contamination of our grounds due to past and ongoing conflicts in the world is widely discussed. ... All parts are put on a ergonomic battery belt that hold battery, cabling and the recording unit. The operator only needs to have the borehole probe in his hand

VX1 – Magnetometer Kit „Surface and Borehole” - Vallon

VX1 – Magnetometer Kit „Surface and Borehole” - Vallon

Item No. 2903170040 Control unit VX1 Control unit for detector operation and data display; Item No. 2903170030 Carrying bar VX1 For mounting the control unit VX1 and probe; Item No. 2909990674 Digital probe VSM Digital probe with 50 cm sensor distance; Item No. 2903170260 Cable drum VX1, 25 m Rugged cable drum for borehole detection

VX1 – Magnetometer Kit "SEPOS®-Borehole" Modular UXO

VX1 – Magnetometer Kit "SEPOS®-Borehole" Modular UXO

Modular magnetometer system for UXO detection down to great depths SEPOS for precise probe position determination – thanks to optimal compensation for changes in speed during data recording Increased data quality Polarity dependent Alarm indication by LED and audio signal Interfaces: USB, Bluetooth and serial Direct communication to VALLON Hard- and Software for datalogging The VX1

GeoVista Borehole Equipment for Groundwater

GeoVista Borehole Equipment for Groundwater

Borehole Fluid flow (for very low vertical flow) Location of permeable zones in water wells; Casing leak detection; Caliper Probes (2, 3-arm and 4-arm versions) Structural borehole measurement & Borehole Volume; Engineering work and casing evaluation; Physical location of washouts, cavings, faults, fractures and changes in borehole dimensions

Geophysical Borehole Logging Techniques – Mundell

Geophysical Borehole Logging Techniques – Mundell

Jul 01, 2021 Geophysical borehole logging can provide accurate data of the physical properties of geologic units and groundwater within the borehole environment. Borehole logging is a time and money-saving approach to gaining detailed information which is otherwise only obtainable from performing and analyzing numerous cores

HYDROGEN SULFIDE MEASUREMENT AND DETECTION

HYDROGEN SULFIDE MEASUREMENT AND DETECTION

Jan 24, 2003 HYDROGEN SULFIDE MEASUREMENT AND DETECTION Patrick J. Moore and Rodney W. Spitler Thermo Electron Corporation 9303 W. Sam Houston Parkway S., Houston, Texas 77099 INTRODUCTION The impetus for measuring and detecting hydrogen sulfide, H 2 S, as it relates to the production and distribution of natural gas, is rooted in two primary concerns

Subsurface Water-filled Fracture Detection by Borehole

Subsurface Water-filled Fracture Detection by Borehole

Subsurface Water-filled Fracture Detection by Borehole Radar: A Case History. ... receiver are connected via an optical cable to a control unit. used for signal generation and data acquisition

Water Borehole Drilling Process In Only 4 Steps | RPM Drilling

Water Borehole Drilling Process In Only 4 Steps | RPM Drilling

Sep 13, 2019 7 – The well/borehole will be disinfected. Chlorination is the most common method of disinfection undertaken. 8 – Post chlorination the well/borehole will need to be dewatered. The water will be tested until chlorine levels are back below 0.5mg per litre. 9 – The well/borehole will be resealed

Magnetic Resonance Borehole Logging Tools | Vista Clara Inc

Magnetic Resonance Borehole Logging Tools | Vista Clara Inc

Vista Clara’s advanced Javelin family of borehole NMR magnetic resonance logging tools provide direct, low-cost, high-resolution measurements of hydrogeological properties that users really care about, including: Volumetric water content, Pore size distribution, Bound and mobile aquifer porosity, Hydraulic conductivity, and Transmissivity

A Novel Muon Detector for Borehole Density Tomography

A Novel Muon Detector for Borehole Density Tomography

One alternative, or complement, to these methods is the development of a muon detector that is sufficiently compact and robust for deployment in a borehole. Such a muon detector

HPGe Detectors & Spectrometers

HPGe Detectors & Spectrometers

Borehole Gamma Spectrometer consists of: A. Spectrometric probe Spectrometric gamma-radiation detection unit based on HPGe detector with built-in preamplifier of signals. cooling system options: Cryoaccumulator; Stirling cycle cryocooler; Liquid nitrogen; Spectrometric device; Protective housing; Well-logging borehole connection cable; B. Ground workstation

US6541975B2 - Integrated borehole system for reservoir

US6541975B2 - Integrated borehole system for reservoir

The transmitted seismic signal may be generated at the Earth's surface by seismic source 25 and detected with detector 52 in the central unit and detectors 58 in the auxiliary units in the

SYSTEMS FOR UXO- AND LANDMINE DETECTION

SYSTEMS FOR UXO- AND LANDMINE DETECTION

Basic unit Detection on land Borehole-search Underwater-search Evaluation Software Multi channel systems for large area detection Positioning Navigation Software for support of vehicle based large area hand-held vehicle-based detection FEREX 4.032 API

Apparatus and method for detecting seismic waves in a

Apparatus and method for detecting seismic waves in a

One embodiment of the present invention is directed to an apparatus having the following principle features for detecting seismic waves in a borehole: an hydraulic pressure source; a plurality of small, light-weight, flexibly connected clamping detector units having hydraulically actuated clamps; conduit means connecting the hydraulic pressure generating source to said detector units so that the detector units

GI - A new borehole electromagnetic receiver developed for

GI - A new borehole electromagnetic receiver developed for

Feb 26, 2021 A borehole EMR can record up to four channels of data simultaneously, including the electric and magnetic field signals of E z, B x, B y, and B z. The borehole EMR increases the collection of electric field signals, effectively improves the accuracy of data interpretation, and provides technical support for multi-component observations

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