Century Wireline

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TOOLS & EQUIPMENT

Meticulous tool construction and precision calibration guarantee the highest standards of data integrity.

With tool diameters starting at 32 mm (1.25″), Century Wireline offers an economical way to log small-diameter boreholes without compromising data quality. Our systems collect measurements as low as every 1mm, delivering dense, detailed records. Meticulous tool construction and precision calibration guarantee the highest standards of data integrity.

Spectral Gamma Logging Tool

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Natural Gamma Logging  Tool

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Natural Gamma / Casing Collar Locating Tool

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9057-MultiParameter E-Log Neutron Logging Tool

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Natural Gamma Neutron Logging Tool

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Three Arm Caliper Logging Tool

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Compensated Neutron Tool

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Gyro Deviation Tool

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Multiparameter E-Logging Tool

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Compensated Density Logging Tool

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Full Wave Sonic Tool

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Dipmeter Tool

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Slim Induction Tool

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Magnetic Susceptibility Tool

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Natural Gamma / Deviation Tool

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Flowmeter Impeller

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E-M Flowmeter

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Fluid Sampler Tool

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Acoustic Televiewer Tool

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Borehole Magnetic Resonance (BMR)

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Sensors

Century offers a broad suite of borehole geophysical sensors for mining, oilsands, environmental, and shallow oil and gas applications. Our team helps match the right tools to the geology, project objectives, and operating conditions to deliver reliable, decision-ready data.

Compensated Density

Determines lithology, formation porosity, and rock mechanics by measuring accurate bulk density in real-time.

Litho-Density

Identifies complex lithologies and computes apparent bulk density, essential for distinguishing between mineral types and evaluating porosity.

Spontaneous Potential (SP)

Identifies permeable beds, correlates
lithology, and determines formation water salinity in fresh-water and environmental
applications.

Shallow and Deep Resistivity 

Evaluates invasion profiles and determines true formation resistivity to identify permeable zones and differentiate fluid types.

Magnetic & Gyro Deviation 

Provides precise 3D borehole trajectory and structural mapping, ensuring accurate spatial positioning of geological targets.

Full-Wave Sonic/Acoustic Sonic 

Calculates primary porosity, evaluates rock mechanics (compressive/shear strength), and identifies fractures via acoustic wave propagation.

E-M & Impeller Flowmeter 

Identifies active flow zones, maps fluid entry/ exit points, and evaluates aquifer yield and permeability profiles

Temperature Logging 

Identifies geothermal gradients, locates fluid flow behind casing, and pinpoints water entry or gas expansion zones.

Induced Polarization (IP) 

Detects disseminated sulfide mineralization and maps clay-rich zones by measuring the electrical chargeability of the formation.

Borehole Magnetic Resonance 

Determines total and effective porosity, characterizes pore size distribution, and estimates formation permeability and fluid types.

Neutron

Evaluates formation porosity and identifies gas-bearing zones by measuring the hydrogen index of the formation.

Natural & Spectral Gamma (K, U, Th) 

Differentiates clay types, identifies alteration zones, and correlates stratigraphy by quantifying potassium, uranium, and thorium concentrations.

Focused Guard & Fluid Resistivity

Measures true formation resistivity in thin beds to identify hydrocarbon saturation, fluid contacts, and highly resistive ore bodies.

Magnetic Susceptibility & Gyro Deviation 

Identifies magnetite-bearing ore zones and mafic/ultramafic lithologies while continuously mapping borehole trajectory.

Dipmeter

Determines structural dip, maps faults, and identifies sedimentary features like cross-bedding using high-resolution micro-resistivity

Acoustic & Optical Televiewers 

Maps fracture networks, identifies bedding planes, and provides high-resolution visual and acoustic structural analysis of the borehole wall.

Fluid Sampler 

Recovers discrete, depth-specific formation fluid samples for geochemical analysis and contamination monitoring.

Deviation/Directional Surveys 

Accurately plots borehole trajectory in 3D space to ensure geological targets are intersected as planned.

Conductivity/Resistivity 

Maps contaminant plumes, evaluates groundwater quality, and delineates lithology in open or PVC-cased environmental wells.

Micro - Imager 

Provides high-resolution borehole wall imaging to identify thin beds, vugs, fractures, and detailed sedimentary structures

Stacked sensors   advantage 

Our multiparameter tools incorporate multiple sensors in a single sonde — saving runs. That means more data per pass, shorter logging time, and reduced operational costs. 

Why Century tools stand out 

Ultra-compact

shorter tools mean less overhole

High sample density

every 1mm where required 

Precision calibration

ensures trusted accuracy

Downhole digitization

minimizes noise and cable interference 

Multiparameter sondes

reduce rig time and save money 

Telemetry Speed

high-speed telemetry means faster logging times

Century’s tools aren’t just some of the smallest or most feature-packed in the industry — their design delivers efficiency, reliability, and cost savings. 

Spectral Gamma Logging Tool

The Spectral Gamma tool is a three-channel analysis of the gross gamma ray spectrum as it relates to potassium, uranium, and thorium content. An internal energy source of less than 1 micro-curries of Cs137 is used to excite the crystal and to stabilize the electronics prior to logging. The spectral window is recorded via a 256 channel spectrum board so that the different energy levels from the formation can be analyzed.

Features

Properties Measured:

1. Potassium (K): Percent 40Offset: 135.63 cm (53.4in.)
2. Uranium (U): Parts Per MillionOffset: 135.63 cm (53.4in.)
3. Thorium (T): Offset: 135.63 cm (53.4in.)

Specifications:

Length: 167 cm (65.75in.)
Temperature: 65 C (150 F)
Diameter: 60.96 mm (2.40 in.)
Pressure: 232 kg/cm2 (3000 PSI)
Weight: 16.82 kg (37 lb.)
Logging Speed: 1.5 m/min. (5 ft./min.)

Tool Voltage Required: 60 VDC

Tool #:7201
Part #:272000

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Natural Gamma Logging Tool

Used  when  the  natural  gamma  log  is required.  This  tools  slim  design  permits logging   in   small   diameter   boreholes and  through  steel  or  PVC  drill  pipe  of  2 inch   inside   diameter   or   larger.   The sensor  is  located  near  the  bottom  of the  tool  to  permit  data  acquisition  near the   total   depth   of   the   borehole.   This tool  can  also  be  used  with  a  spacer and   gamma   source   to   record   4   p density.

Features

Properties Measured:

Natural Gamma: 2.2 x 10.2 cm (0.875 x 4.0 in.)
NAI Scintillation
Offset: 101 cm (40.8 in.)

Specifications:

Length: 128.9 cm (50.75 in.)
Temperature: 85 C (185 F)
Diameter: 41 mm (1.625 in.)
Pressure: 281 kg/cm2 (4000 PSI)
Weight: 7.46 kg (20 lb.)
Logging Speed: 9 m/min. (30 ft./min.)

Tool Voltage Required: 36 VDC  Sensor
Response Ranges Sensor Response Limits Accuracy Natural Gamma (NG) 0 – 400,000 API units +/-5%

TOOL#: 9012
Part #: 318400

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Natural Gamma / Casing Collar Locating Tool

Used when the natural gamma log and casing collar locator are required. This tool’s slim design permits logging in small diameter boreholes and through steel or PVC drill pipe of 2-inch inside diameter or larger. The natural gamma sensor is located near the bottom of the tool to permit data acquisition near the total depth of the borehole.

Features

Benefits:

Fully downhole digital
Quick automatic setup, unique tool identification
Designed for one-man operation
Can be customized to your specific needs

​Features:
Properties Measured:

Casing Collar Locator
Magnetic Coil
Offset: 20 cm (7.9 in.)

Natural Gamma:
2.2 x 10.2 cm (0.845 x 4.0 in.)
NAI Scintillation
Offset: 114.3 cm (45 in.)

Specifications:
Length: 118.9 cm (52.75 in.)
Temperature: 85C (185F)
Diameter: 41 mm (1.625 in.)
Pressure: 281 kg/cm2 (4000 PSI)
Weight: 7.46 kg (20 lb.)
Logging Speed: 9 m/min. (30 ft./min.)
Tool Voltage Required: 36 VDC

Tool #:9053

Part #:340500B

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9057-MultiParameter E-Log Neutron Logging Tool

The Multi-Parameter E-Log, Neutron logging tool was developed to replace the
9055 which was historically Century’s most popular tool. The tool duplicates all parameters on the 9055 while adding the 16 inch normal, 64 inch normal, and lateral resistivities. The 9057 natural gamma circuit features a low dead time and the ability to measure very high count rates making it a favorite for uranium logging. The tool records ten different parameters simultaneously in
one pass of the borehole. The ten parameters are the following: natural gamma, spontaneous potential, single point resistance, 16  in. normal resistivity,  64 in. normal resistivity, 48  in. lateral resistivity, neutron-neutron, temperature, delta temperature, slant angle(tilt) and azimuth (bearing). Slant angle, azimuth, and natural gamma are optional.

Features

Properties Measured:

Natural Gamma: 2.2 x 10.16 cm
(0.875 x 4.0 in.)
NaI Scintillation
Offset: 14.7 cm (5.8 in.)
64 in. Normal Resistivity: Offset: 109.2 cm (43 in.)
16 in. Normal Resistivity: Offset: 170.2 cm (67 in.)
Neutron-Neutron: He 3 Detector 2.54 cm x 15.2 cm (1 in. x 6 in.)
Offset: 200.7 cm (79 in.) 
Lateral Resistivity 48 in.
Offset: 139.7 cm (55 in.)
Spontaneous Potential: +/- 0.1 mv resolution
Offset: 27.7 cm (10.9 in.)
Single Point Resistance: +/- 0.1 ohm resolution
Offset: 190.5 cm (75 in.)
Temperature & Delta Temperature:0.004 C (0.007 F) resolution
Offset: 220.5 cm (86.8 in.)
Slant Angle & Azimuth:3-axis magnetometer and 2-axis inclinometer
Offset: 200.7 cm (79 in.)

Specifications:

Length: 237 cm (93.6 in.)
Temperature: 80 C (176 F)
Diameter: 53 mm (2.1 in.)
Pressure: 281 kg/cm2 (4000 PSI)
Weight: 15 kg (33 lb.)
Logging Speed: 9 m/min. (30 ft./min.)

Tool Voltage Required: 36 VDC

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Natural Gamma Neutron Logging Tool

This tool is used when the natural gamma log and casing collar locator is required. This tools slim design permits logging in small diameter boreholes and through steel or PVC drill pipe of 2 inch inside diameter or larger. The natural gamma sensor is located near the bottom of the tool to permit data acquisition near the total depth of the borehole

Features

Properties Measured:

Natural Gamma: 2.2 x 102 mm (0.875 x4.0 in.)NAI Scintillation
Offset: 13.5 cm (5.3 in.)
Neutron-NeutronHe3 Detector25.4 mm x 152 mm (1in. x 6 in.)
Offset: 217.5 cm (85.6 in.)
TemperatureOffset: 220.4 cm (86.8 in.)
Slant Angle & Azimuth: 3-axis magnetimeter and 2-axis inclinometer
Offset: 213.3 cm (84 in.) Length: 243 cm (96 in.)

Specifications:

Temperature: 80 C (176 F)
Diameter: 42 mm (1.625 in.) 
Pressure: 292 kg/cm2 (4000 PSI) 
Weight: 12.0 kg (25 lb.)
Logging Speed: 9 m/min. (30 ft./min.)

Tool Voltage Required: 36 VDC

TOOL#: 9058

 
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Three Arm Caliper Logging Tool

The 9074, 8074, 7074 and 6074 Three Arm Caliper logging tools, are a three-arm caliper configuration used to measure the diameter of the borehole. They can be used in both open and cased holes. Natural Gamma and the casing collar locator are optionally available. However, when configured with both the natural gamma and casing collar locator the tool is slightly longer.

Features

Benefits:

Fully downhole digital
Quick automatic setup, unique tool identification
Designed for one-man operation
Can be customized to your specific needs

Features:
Properties Measured:

  1. Natural Gamma: (optional)
    2.2 x 10.16 cm (0.875 x 4.0 in.)
    NaI Scintillation
    Offset: 14.6 cm (5.76 in.)

  2. Casing Collar Locator: (optional)
    Dual magnet and coil assembly Offset: 14.6 cm (5.76 in.)

  3. Three Arm Caliper:
    Short- or Long- arm configuration, motor operated
    Sensor Offset:    Short-arm: 220.4 cm (86.8 in.)
    Long-arm: 241.0 cm (94.9 in.)

​Specifications:

Tool Length:

With Short-arms: 226 cm (89 in.)

With Long-arms: 264 cm (104 in.)

Temperature: 85C (185F)

Diameter: 50.8 mm (2.0 in.)

Pressure: 281 kg/cm2 (4000 PSI)

Weight:

Short-arm: 18.5 kg (48 lbs.)

Long-arm 20.8 kg (54 lbs.)

Logging Speed: 9 m/min. (30 ft./min.)

Tool Voltage Required: 56 VDC

Tool #:9074

Part #:298000A

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Compensated Neutron Tool

The Compensated Neutron tool contains a two detector, neutron system which uses a 5.0 Curie, Am241Be source to record neutron porosity of the formation. Additionally, the tool also records short and long neutron counts, natural gamma, temperature and a deep guard resistivity.

Features

Properties Measured:

Natural Gamma:2.9 x 10.2 cm (1.125 x 4.5 in.)NaI Scintillation
Offset: 30.5 cm (12 in.)
Deep Guard Resistivity:Upper guard, measure and lower guard electrodes, 3 m (10 ft.)Offset for measure electrode:147.3 cm (58 in.)
Neutron Detector, Far Spacing: He3 5.1 x 25.4 cm (2 x 10 in.)61cm (24 in.) spacingOffset: 218.4cm (86 in.)
Neutron Detector, Near Spacing:He3 2.9 x 10.1 cm (1.125 x 4.0 in.)32.4 cm (12.75 in.) spacingOffset: 241.3cm (95 in.)
Temperature Measurement:Thermal temperature on needle sensor.
Offset: 265.4 cm (104.5 in.)
Radioactive Source:5 Ci AmBe 241 neutron source, bullplug
Offset: 276.9 cm (108 in.)

Specifications:

Length: 282 cm (111 in.)
Temperature: 85 C (185 F)
Diameter: 5.1 cm (2.0 in.)
Pressure: 232 kg/cc (3300 PSI)
Weight: 16.4 kg (36 lb.)
Logging Speed: 9 m/min. (30 ft./min.)

Tool Voltage Required: 70 VDC

TOOL#: 9075

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Gyro Deviation Tool

Deviation information is valuable in mine planning and subsurface mapping. The gyroscopic device is used for measuring deviation through steel drilling rods or casings and in open holes where magnetic rocks occur. The digital solid state design uses a continuous reading gyroscope (modified Goodrich, or WellNav), with information recorded at operator selectable sample intervals. It is not necessary to stop to take station data. Natural Gamma and Magnetic Azimuth are optional. All software to process survey data (including drift corrections) is included in the Log and Display programs which is included with the System VI logging system.

Features

Properties Measured:

Natural Gamma (optional):2.2 x 10.2 cm (0.875 x 4.0 in.)NaI Scintillation
Offset: 29.7 cm (11.7 in.)
Tilt measurement:X-Y Inclinometers
Offset: 31.2 cm (79.2 in.)
Gyro: Mechanical 2 degrees of freedom
Offset: 224 cm (88.2 in.) Sold Separately.
X-Y-Z Magnetometer (optional):
Offset: 31.2 cm (79.2 in.)

Specifications:

Length: 242.6 cm (95.5 in.)
Temperature: 85 C (185 F)
Diameter: 42 mm (1.63 in.) (upper) 45 mm (1.75 in.) (lower)
Pressure: 232 kg/cm2 (3300 psi)
Weight: 13.4 kg (29.5 lb.)
Logging Speed: 15 m/min. (50 ft./min.)

Tool Voltage Required: 60 VDC

Accessories Required: Landing Table & Legs, Sighting Scope, Gyro Surface Power Supply,  Switching Box, and SRG GyroLogging Cable Requirements: 4 Conductor

TOOL# 9098

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Multiparameter E-Logging Tool

The Multi-Parameter E-Log tool is a multi-parameter resistivity tool primarily used for water well logging and monitoring wells. The tool records ten different
parameters simultaneously in one pass of the borehole. The ten parameters are the following: natural gamma, spontaneous potential, single point resistance, 16 in. normal resistivity, 64in. normal resistivity, 48 in. lateral resistivity, fluid resistivity, temperature, delta temperature, slant angle (tilt) and azimuth (bearing). Slant angle, bearing, and natural gamma are optional.

Features

Properties Measured:

Natural Gamma: (optional)2.5 x 10.2 cm (1.0 x 4.0 in.)NAI Scintillation
Offset: 198.1cm (78.0 in.)
64 in. Normal Resistivity:
Offset: 119.1 cm (42.96 in.)
16 in. Normal Resistivity:
Offset: 170.1 cm (66.96 in.)
Fluid Resistivity:
Offset: 228.6 cm (90.0 in.)
Lateral Resistivity 48 in.
Offset: 139.6 cm (54.96 in.)
Spontaneous Potential:
Offset: 27.7 cm (10.9 in.)
Single Point Resistance:
Offset: 190.5 cm (75.0 in.)
Temperature & Delta Temperature:
0.074 C (0.007 F) resolution
Offset: 236.2 cm (93.0 in.)
Slant Angle &  Bearing: (optional)
3-axis magnetometer and 2-axis inclinometer
Offset: 200.6 cm (78.964 in.)

Specifications:

Length: 244 cm (96 in.)
Temperature: 70 C (158 F)
Diameter: 53 mm (2.1 in.)
Pressure: 281 kg/cm2 (4000 PSI)
Weight: 15 kg (33 lb.)
Logging Speed: 9 m/min. (30 ft./min.)

Tool Voltage Required: 36 VDC

TOOL#: 9144

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Compensated Density Logging Tool

The Series 9239, Compensated Density logging tool uses the two focused density detectors to compute borehole compensated density in real time while logging. No post-processing required to produce CDL bulk density. Additionally, the tool also records natural gamma, caliper, and focused guard resistivity

Features

Properties Measured:

Natural Gamma: 2.2 x 10.16 cm (0.875 x4.0 in.)NAI Scintillation
Offset: 21 cm (8.25 in.)
3-Element Guard Resistivity:127.6 mm (50.25 in.) guard electrode
Offset: 63.5 cm (25 in.)
Caliper: Motorized, uphole actuated35.6 cm (14 in.) or 20.3 cm (8 in.)
Offset: 210.8 cm (83 in.) 
Far Density:2.2 x 10.16 cm (0.875 x4.0 in.)35.8 cm (14.1 in.) spacing
Offset: 243.3 cm (95.8 in.)Near Density:2.2 x 3.2 cm (0.875 x1.25 in.)20 cm
(7.9 in.) spacingOffset: 259.3 cm (102.1 in.)
Radioactive source: 200-300 mCi Cesium 137 in bullplug
Offset: 274.3 cm (108.0 in.)

Specifications:

Length:280.3 cm (110.35 in.)
Temperature: 85 C (185 F)
Diameter: 56 mm (2.2 in.)
Pressure: 175 kg/cm2 (2500 PSI)
Weight: 32.7 kg (72 lb.)
Logging Speed: 9 m/min. (30 ft./min.)

Tool Voltage Required: 56 VDC

TOOL#: 9239

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Full Wave Sonic Tool

The Full Wave Sonic tool contains a single transmitter and dual receiver to record formation travel times. The full wave form data is also recorded simultaneously, along with near and far travel times, borehole-compensated delta time, calculated sonic porosity, receiver gains, near/far amplitudes and natural gamma. The sonic or acoustic log uses the basic principle of sound waves traveling through a media. The Century sonic system uses a single transmitter and dual receiver system for recording the travel times of the formation. The receivers are spaced approximately 2 and 3 feet, from the transmitter. Therefore, a 0.3m (1  ft.) calculation can be made  to  measure this  interval  transit time. Additionally, the 9320 can be upgraded for cement bond logging, by adding a casing collar locator (see below for link).

Features

Properties Measured:

Natural Gamma:Mechanical Centralizer 2.5 x 10.2 cm(1.0 x 4.0 in.) NaI Scintillation
Offset: 22.9 cm (9 in.)
Transmitter:24 khz. piezoelectric
Offset: 170.2 cm (67 in.)
Acoustic Isolator: Thermoplastic polyester
Offset: N/A
Near Receiver: (2 ft.) spacing
Offset: 231.1 cm (91 in.)
Far Receiver: (3 ft.) spacing
Offset: 266.7 cm (105 in.)

Specifications:

Length: 283.2 cm (111.5 in.)
Temperature: 85 C (185 F)
Diameter: 50.8 mm (2.0 in.)
Pressure: 175 kg/cm2 (2500 PSI)
Weight: 22.7 kg (50 lb.)
Logging Speed: 9 m/min.@0.06 SI (30 ft./min. @ 0.2 ft. SI)

Tool Voltage Required: 85 VDC

TOOL# 9320

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Dipmeter Tool

The Dipmeter tool is a formation strike and dip directional probe primarily used in mining and environmental logging applications. Additionally, the tool also records natural gamma, X-Y calipers, and borehole deviation is computed from the slant angle and bearing measurements calculated from the inclinometer and magnetometer sensors. To ensure accurate strike and dip measurements in small-diameter holes, special care should be taken when calibrating the calipers to maximize their accuracy.

Features

Properties Measured:

Natural Gamma: 2.2 x 8.9 cm (0.875 x 3.5 in.)NaI (TI) Scintillation
Offset: 14 cm (5.5 in.)
Slant Angle Bearing: Offset: 67 cm (26.4 in.)
Independent X-Y Calipers: Maximum 30 cm (12 in.) Hole Diameter
Offset: 305 cm (120 in.)
4-pad Micro Resistance: Offset: 305 cm (120 in.)

Specifications:

Length: 323 cm (127 in.)
Temperature: 85 C (185 F)
Diameter: 57 mm (2.25 in.)
Pressure: 352 kg/cm2 (5000 PSI)
Weight: 34.6 kg (76 lb.)
Logging Speed:
Maximum: 5.5 m/min. (18 ft./min.)
Minimum: 2.7 m/min. (9 ft./min.)

Tool Voltage Required: 115 VDC

TOOL#: 9411

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Slim Induction Tool

This three-coil slim hole induction tool was designed to provide conductivity and converted resistivity logs in open boreholes or PVC/plastic cased holes with casing sizes 5.08 cm (2 in.) or greater. The probe measures the rock conductivity in borings and wells within a zone of 25.4 to 127 cm (10 to 50 in.) from the well, but is not sensitive to the borehole fluid, casing, or grouting materials. The tool can also be used in air-filled holes to measure the conductivity response. In addition, the tool also simultaneously records natural gamma ray in API units or CPS for determination of clay content and radioactivity measurements.

Features

Properties Measured:

Natural Gamma: 2.2 x 10.2 cm (0.875 x 4.0 in.)NaI Scintillation
Offset: 17.5 cm (6.9 in.)
Induction: Coil-focused conductivity 3-Coil Conductivity Electrodes
Offset: 152.2 cm (59.9 in.) Main Coil Spacing: 50.0cm (20 in.)

Specifications:

Length: 266.7 cm (105.0 in.)
Temperature: 70 C (158 F)
Diameter: 41 mm (1.625 in.)
Pressure: 281 kg/cm2 (4000 PSI)
Weight: 7.46 kg (20 lb.)
Logging Speed: 9 m/min. (30 ft./min.)

Tool Voltage Required: 30 VDC

TOOL# 9512

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Magnetic Susceptibility Tool

The Magnetic Susceptibility tool is a slim hole mining tool primarily designed to measure the magnetic susceptibility of the formation. Additionally, optional natural gamma, inclinometer, and magnetometer sensors can be included

Features

Properties Measured:

Natural Gamma: (optional) 2.2 x 10.2 cm (0.875 x 4 in.)Scintillation Crystal Offset: 91.4 cm (36 in.)
Magnetic Susceptibility: Dual-focused coils, 1.44 kHz operating frequency10.2 cm (4 in.) resolution vertically and horizontally
Offset: 186 cm (73.2 in.)
Slant Angle and Azimuth Measurements: 3-axis magnetometer 2-axis inclinometer Offset: 34.3 cm (13.5 in.)

Specifications:

Length: 203 cm (80 in.)
Temperature: 70 C (158 F)
Diameter: 4.1 cm (1.63 in.)
Pressure: 253 kg/cm2 (3600 PSI)
Weight: 18 kg (40 lb.)
Logging Speed: 9 m/min. (30 ft./min.)

Tool Voltage Required: 36 VDC

TOOL#: 9622

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Natural Gamma / Deviation Tool

Used when natural gamma log and deviation data is required. The natural gamma sensor is located near the bottom of the tool to permit data acquisition near the total depth of the borehole. The deviation device uses two inclinometers and three magnetometers to determine precise borehole path and direction. The small diameter (41 mm / 1.625 in) of the tool allows logging in 2.0 ID PVC casing, non-metallic casings, or open holes. The deviation test stand is recommended for both calibration of the device and routine tool checks for accuracy.

Features

Properties Measured:

Natural Gamma:2.2 x 10.2 cm (0.875 x 4.0 in.) NAI Scintillation
Offset: 139.7 cm (55 in.)
Inclination & Azimuth: 2-axis Inclinometer and 3-axis Magnetometer.  Offset:  38.1 cm (15 in.)

Specifications:

Length: 154.4 cm (60.0 in.)
Temperature: 85 C (185 F)
Diameter: 41 mm (1.625 in.)
Pressure: 281 kg/cm2 (4000 PSI)
Weight: 7.46 kg (20 lb.)
Logging Speed: 9 m/min. (30 ft./min.)

Tool Voltage Required: 36 VDC

TOOL#: 9702

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Flowmeter Impeller

Continuous velocity flowmeter logs are used to measure the fluid flow rates in open and cased wells. Logs can be run in the up or down direction, with or without the well producing water. Century’s impeller flowmeter uses a magnetic coupling between the sensing device and the electronics so that borehole fluids cannot enter the tool and injected oil is no longer necessary. Internally, a 256-pulse-per-revolution optical encoder records the impeller turns, minimizing statistical problems of other tools. With this low-friction design, low flow rates of less than 0.8 liters per second (3 gallons per minute) can be measured. The tool is configured with a 114 mm (4.5 in.) shroud. An 89 mm (3.5 in.) shroud is also available. Natural gamma is optional.

Features

Properties Measured:

Natural Gamma: (optional) 2.2 x 10.16 cm (0.875 x 4.0 in.)NaI Scintillation
Flow Propeller: Offset: 134.6 cm (53 in.)
Propeller Guard Cage:

Specifications:

Length: 152.4 cm (60 in.)
Temperature: 75 C (167 F)
Diameter: 4.1 cm (1.625 in.)
Pressure: 176 kg/cm2 (2500 PSI)
Weight: 7.3 kg (16 lb.)
Logging Speed: 15 to 18 m/min. (60 ft./min.)

Tool Voltage Required: 16 VDC

TOOL#: 9711

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E-M Flowmeter

The E-M Flowmeter tool is used in the environmental and hydrology industries to measure fluid movement in a borehole. It incorporates Quantum Engineering’s “EBF” electromagnetic sensor. The instrument measures flow rates using the principle of Faraday’s Law of Induction. The downhole probe consists of an electromagnet and two electrodes located 180 degrees apart and 90 degrees to the magnetic field inside a hollow cylinder. The voltage induced by a conductor moving at right angles through the magnetic field is directly proportional to the velocity of the conductor (water) through the field.
The tool is capable of measuring low velocity flow rates down to less than 50 ml/min and increased flow rates up to 40 liters/min through the tool’s 1-inch inside diameter sensor. When using the tool to measure low velocity flow rates, a rubber skirt is attached to the outside of the sensor to block off the borehole and force the fluid to pass through the 1-inch diameter opening inside the sensor coil. The Compu-View Software program is designed to allow the automatic collection of data at selected static stations in the borehole. When measuring faster flow rates, the rubber skirt is typically removed and the tool is run in either static station or dynamic mode. The tool has no moving parts.

Features

Properties Measured:

Flowmeter: Electromechanical
Offset: 139.7 cm (55.0 in.)
Fluid Resistivity: Offset: 139.7 cm (55.0 in.)
Temperature & Delta Temperature : Offset: 139.7 cm (55.0 in.)

Specifications:

Length: 142 cm (56.0 in.)
Temperature: 60 C (140 F)
Diameter: 41.3 mm (1.625 in.)
Sensor Housing: 50.8 mm (2.0 in.)
Weight: (13.5 lbs.)

Tool Voltage Required: 64 VDC

TOOL# 9722

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Fluid Sampler Tool

This tool can be used to obtain 1 liter fluid samples downhole

Features

Properties Measured:

Fluid Sampler:Sealed sample container, motorized orifice1.0 liter (0.26 gal) capacity standard
Offset: 73.7 cm (29.0 in.)

Specifications:

Length: 154.9 cm (61.0 in.)
Temperature: 50 C (122 F)
Diameter: 5.1 cm (2.0 in.)
Pressure: 232 kg.m2 (3000 psi)
Weight: 11.8 kg (26 lbs.)

TOOL#: 9751

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Acoustic Televiewer Tool

The Acoustic Televiewer takes an oriented “picture” of the borehole using high-resolution sound waves. This acoustic picture is displayed in both amplitude and travel time. This information is used to detect bedding planes, fractures, and other hole anomalies without the need to have clear fluid filling the boreholes.
The televiewer digitizes 256 measurements around the borehole at each high-resolution sample interval (0.005 meters / 0.02 feet). This data is oriented to North and displayed in real time while logging using the Visual Compu-Log software. Analysis includes color adjustment, fracture dip and strike determination, and classification of anomalies. It allows information to be displayed on the graphical screen, plot, and in report format. Optionally, the tool can be equipped with a natural gamma sensor.

Features

Properties Measured:

Natural Gamma: Offset: 30.48 cm (12 in.) Scintillation (NG):0 to 10,00 API, Accuracy +/-5 percent
Deviometer: Offset: 175 cm (69 in.) X-Y Inclinometer (XYI): 0 to 90 degrees, Accuracy +/-0.5 degreesAzimuth (AZ):3-axis magnetometer 0 to 360 degrees, Accuracy +/- 2 degrees
Acoustic Amplitude & Acousitic Travel Time:Offset: 175 cm (69 in.), Accuracy +/- 2.55 mm (0.1 in.)

Specifications:

Outside Diameter 50.8 mm (2 in.)
Weight: 14 kg (30 lbs.)
Length: 193 cm (76.0 in.)
Pressure: 105 kg/cm2 (1500 psi)
Temperature: 85 C (185 F)
Scan Rate: 12 revolutions/second
Sample Rate: 256 samples/revolutions
Borehole Size: 74 to 230 mm (2.9 to 9 in.)
Logging Speed: 2 m/min (6 ft/min.)Length: 142 cm (56.0 in.)

Tool Voltage Required: 115 VDC

TOOL#: 9804

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Borehole Magnetic Resonance

Borehole Magnetic Resonance (BMR) is an advanced geophysical logging tool. This tool provides an accurate characterization of pore structure in the subsurface by measuring signals from magnetic resonance. This measurement can distinguish fluid types and determine rock porosity, fluid content, and permeability.

Features

Features & Benefits

NMR technology provides benefits to many industries. Due to high demand and the value of the measurements, Mount Sopris has partnered with NMR Services Australia (NMRSA) to offer a smaller borehole magnetic resonance tool for other industries that operate in slim boreholes. The NMR downhole tool has many benefits for your logging application.

  • Advanced NMR pulse sequences and signal processing provide precise and accurate aquifer pore structure and mobile water content measurements
  • A theoretical model is used to estimate intrinsic permeability
  • Fast wireline telemetry and powerful analysis software generate a real-time log
  • Impressive signal-to-noise ratio gives a large depth of investigation
  • Can be run centered in open-hole, fiberglass or PVC-lined boreholes

Specifications – QL40-BMR60

  • Diameter: 60 mm / 2.36 in
  • Length: 2.01 m / 79.1 in
  • Weight: 19 Kg / 42 lbs
  • Max. Temp.: 100ºC / 212ºF
  • Max. Pressure: 200 bar / 2900 psi
  • Borehole Diameter Range: 75 – 186 mm (3 – 7.25 in)
  • Logging Speed: 60-120 m/hr (200-400 ft/hr)
  • Vertical Sensor Aperture: 11.5 cm (4.5 in)
  • Diameter of Investigation: 23 cm (9.1 in)
  • Echo Spacing (TE): 450 µs
  • Wait Time (TW): Multi
  • T2 Range: 0.5xTE – 5 seconds
  • Porosity Range: 0 – 100 pu
  • Total Porosity Precision: 2 pu – 2 level averaging

Operating Conditions

  • Borehole Fluid
  • Water
  • Mud
  • Dry
  • Casing
  • Uncased
  • PVC Borehole
  • Centralization
  • Required

 

Tool #: 060

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