Advanced Borehole Services

Professional Borehole Geophysical and Video Services
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Borehole Services Available


Acoustic Cement Bond
-Dual transducer system, includes:
    Transit Time in microsecond per foot
    Bond Curve in millivolts
    3 Foot VDL or Waveform Graphic Track
    Gamma Ray , in API GR units
    Bond logs are run centralized in fluid filled cased wells. Service is best suited for steel casing, but         has been successful in identifying grout behind PVC and Fiberglass type casing. Maximum
    recommended casing diameter is 12 inches.
        
Acoustic Borehole Compensated -Full waveform acoustic system, Dual
    transducer type.
    Borehole Compensated Transit Time, micro seconds per foot,
    Formation Velocity, micro seconds per foot
    Signal Amplitude in millivolts
    VDL and/or Waveform Graphic Track
    Porosity Curve based on input Matrix Values
    Gamma Ray, API GR units,
    Acoustic logs are run centralized in fluid filled borings.
    Post processing can provide curve for:    
    Strength, based on compression wave velocities,
                           
Caliper-Mechanical, 3 arm type, slim hole service available
    Borehole diameter in inches (cm), up to 42 inches,
    Gamma Ray, API GR units,
    Calculated Curves for; Total Volume in Ft3 , Annular Volume in Ft3
   
Caliper-Mechanical, 4 arm, XY  type
                       
Deviation-Magnetic type
    Borehole Deviation with Depth, XYZ Location
    Run centralized in open hole and/or non metallic casing.

Fluid Resistivity-
    Fluid resistivity in ohm meters/ meter
    Fluid conductivity in us/cm
    Gamma Ray in API GR units,
    Calculated Curves;
    Salinity
    Run in fluid filled borings
           
Fluid Samples-Discrete Sampler, 1 Liter per sample-Slim hole service available

Fluid Velocity-Spinner Type, 2 cage sizes available
    Log UP/DOWN- Static Well
    Log DOWN-Pumping/Flowing Well
    Calculated Curves;
    Productivity Curve in GPM (Pumping Well/Flowing)
    Productivity Contribution Curve (% of Total output)
                       
Gamma Ray-Natural Gamma Ray, Included in most other Services-Slim Hole Service Available
    Recorded in American Petroleum Institute Gamma Ray units,

Induction- Dual Depth includes
    Medium-Deep Conductivity Curve in mmho/m
    Run in wet or dry borings, open hole or PVC casing                   

Resistivity includes
    Normal Resistivity- 16 and 64 inch, in ohm meters/meter
    Single Point Resistance, in ohms
    Lateral- in ohm meters/meter
    Gamma Ray, in API GR units,
    Run in fluid filled, uncased borings

Temperature
    Absolute in degrees F, Differential curve,
    Run in fluid filled borings.
   
Video    
    Color, dual axis camera,
    Color, single axis camera,
    Slim Hole dual axis camera,
    Recorded on VHS tape,
    Available on CD or DVD Rom and Flash Drive
    Titled and Music track
    Run centralized in wet or dry borings, minimum of 3 inch diameter

Special Logging  Services Available:
    Acoustic Caliper-Large diameter services               
    Spectral Gamma Ray           
    Gyroscopic Deviation
    Water Chemistry
Special Services-Prior Notice Required  All services subject to change without notice

Acoustic Televiewer (Digital)-Bedrock Fracture identification and descriptions.
    Graphical images of borehole wall or inner casing.
    Graphical  Amplitude and Transit Time,
    Acoustic Caliper,
    Includes tri-axial inclinometer/magnetometer for orientation to magnetic
    North and borehole inclination corrections to recorded data.
    Televiewer is recorded centralized in fluid filled boreholes, with maximum
    diameter of 9 inches.
    Comprehensive post processing required for complete data evaluation.
    Processed data provides fracture orientation as strike and dip angles,
    distribution with depth and statistical presentation of orientation distributions

Fluid Velocity (Low Flow), EM Flow or Heat Pulse types,
    EM can be recorded moving and stationary.
    Station survey required flow skirt.

Resistivity includes
    Focused Guard, in ohm meters/meter
    Gamma Ray, API GR units
    Ru
n in fluid filled, uncased borings