Borehole Geophysics - Well Logging

  • Full suite of geophysical logging tools from Robertson Geologging (USA), Inc.
  • Dual view color video camera from Aries CCV Engineering
  • Hydraulic draw-works mounted within a 16 foot custom trailer.
  • Logging depth range of 0 to 4300 feet; well diameters ideally 4 inches or greater.
  • Printrex 843DL/G grayscale printer at office and in trailer
  • 24-inch large format color plotter
  • WellCAD software for final logs

Scroll down for a detailed list of our logging tools and the well conditions in which they operate.

Our logging services at a glance:

  • Normal 8"/16"/32"/64" resistivities (Electric log w/ natural gamma)

  • Natural gamma can be measured by four separate tools in counts-per-second (CPS)
  • Dual induction (20" & 32" spacings) w/ natural gamma
  • Fluid temperature w/differential
  • Fluid conductivity w/differential and normalized to 25 degrees Celsius
  • Caliper (3-arm, up to 63" diameters) w/ natural gamma
  • Sonic Log, borehole compensated w/ full waveform and VDL
  • Cement bond log w/ VDL
  • High resolution acoustic televiewer (HRAT)-borehole imaging
  • Dual-view video inspection camera (4"+ well diameters)
  • Impeller flowmeter w/ natural gamma
  • Gas/fluid sampler (1-liter sealed chamber)

We use an Aries CCV BT9600 dual view color camera.  We log with a 1/4-inch coaxial reinforced cable to which our camera electronics have been optimized for video quality with a depth range to 4300 feet.  A single robotic camera offers both downview and sideview with full 360 degree rotation, variable brightness control, manual focus, and variable rotation speeds.  We can offer three different light sources; an LED ring light, a 12-inch or 18-inch mast with very bright incandescent bulbs.

 

Within the logging trailer video can be viewed on two flat screen monitors that can face fore or aft, or on a laptop computer during video capture. Our video is redundantly recorded onto both a hard disk drive recording deck and through a video capture device to a personal computer.  DVD and/or movie file products are available onsite, or we can provide copies of archived files at a later time.

Our digitally captured videos can be edited and uploaded using "cloud" technologies directly from the site, making them available for viewing on computers or mobile devices within minutes after the video work is completed!  Field uploads are best with short video segments less than 10 minutes or 100mb, although we can upload a full-sized 4GB video movie file for downloads using broadband connections.

 

We offer a simple borehole video log as a consulting service upon request.  After collecting the video data, we will provide captured still images in a report format that describe any significant conditions within the well.

 

A note on formats:  DVD's use an industry standard video_ts format.  These formats can be displayed on personal computers but are more seamlessly viewed on true DVD players.  Our movie files are Apple Quicktime movies ideal for computers but also easily viewed on almost any smartphone or mobile device.

Click here to see a few sample Videos linked from YouTube at smart phone resolutions.

Who to contact:

Rob Baker

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