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American Machine And  Gundrilling Inc
American Machine & Gundrilling, Inc. is a 3rd generation family owned company and is one of the few companies equipped with the skill set and latest technology in machinery to provide deep hole gundrilling services. Our experienced team can manufacture multiple hole types such as angle, blind, intersecting, and thru holes to name just a few. The facility is equipped with CNC controlled and NC controlled equipment with capabilities of machining on 3 axis.
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Borehole Geophysical Logging
Our MX Series winch holds 700 meters of single conductor cable, and most applications in the environmental, geotechnical and water supply fields are within reach.  In addition, the winch and other logging equipment are semi-portable and can be run with power from a small generator, allowing access over difficult terrain or to remote locations. Princeton Geoscience utilizes MSI’s time-tested Poly-Series logging probes.  We own and have received MSI training in the use of probes for logging the following parameters of common interest in environmental and water supply investigations:  Caliper (3-arm), Natural Gamma, Spontaneous Potential, Normal Resistivity (8”-16”-32”-64”), Single Point Resistance, Fluid Resistivity, Fluid Temperature, Heat-Pulse Flowmeter.   Also, we have access to equipment needed to acquire acoustic- and optical televiewer, induction and other specialized logs, via rental from MSI and several equipment rental vendors.  We collaborate with another geophysical logging contractor, when necessary to complement our in-house experience.
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BTA Drilling Services
BTA Drilling is a deep hole drilling process that utilizes specialized drilling tools run on a long drill tube. BTA is a much more efficient method of drilling compared to traditional twist drills and gun drilling. BTA stands for Boring and Trepanning Association, which developed this deep hole drilling system. Our state-of-the-art BTA deep hole drilling machines and tools, coupled with sophisticated manufacturing processes, have given us the reputation for being an industry leader in BTA drilling. Differentiating technology combined with the best BTA drilling machines and equipment on the market allows us to drill incredibly straight holes at extreme diameter to depth ratios. Capable of BTA drilling concentric holes up to 40 feet in length while guaranteeing OD to ID Concentricity of .010 TIR, we have the knowledge and skills to make your project a success. We are very strong in offset / eccentric BTA deep hole drilling. We are able to guarantee .020 positional tolerances at extreme depths
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Provider:  Cobore, Inc
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DC5150
The industry standard for over 50 years, this latest generation of our flagship product can be used in wells and boreholes 3 to 30 inches (7.62 to 76.2 cm) in diameter and down to depths of 5,000 feet (1,524 m). Comes standard with a DC5150 dual cam, dual view camera with continuous 360 degree rotation.
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Provider:  Laval
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Deep Hole Drilling Specialists
Carlson Tool has specialized in deep hole drilling since 1964. Our employees have accumulated over 100 years of precision deep hole drilling experience. Combined with today’s technology, we go the distance to meet your hole drilling needs.
  • 9+ Machines with hole ranges from .625” to 14.75” diameter
  • Lengths up to 20 feet
  • Lifting capacity to 20 tons
  • Table capacity to 50,000 pounds
  • Custom tooling development
  • Pull bore operations
  • Laser verification technology
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down-hole video camera services
down-hole video camera services with digital video and audio recording capabilities. The camera has both down and side viewing lenses with independent light sources. The probe and attaching hardware are fully sealed stainless steel and can be submerged in ground water and acid mine drainage. The camera orientation can be determined to locate true positions of features observed in the borehole. A custom centralizing assembly allows for viewing in holes of any inclination. SGS also has a full video editing capability to convert the video into CD or DVD viewing formats. Specifications:
  • Tape format: Digital 8mm
  • Imaging:          full color
  • Probe Diameter:    62mm
  • Minimum borehole diameter:     2.9 in*
  • Focusing distance:       0.5 in to infinity
  • Centralizing Range:     3 in to 8 in diameters
  • Depth Capability:        100 ft (-45º to +45º)
500 ft (-45º to -90º)**
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Drilling Service Company
The story of the founding of Drilling Service Company mirrors our history since then: It’s first and foremost about people, and then about finding the very best way to do the work and build relationships. In the early 1950s, Clifford W. Cliff Murphy had managed operations for several established construction companies. Frankly he thought he could do things better. In 1955 he formed Drilling Service Co.As President of Drilling Service Cliff Murphy was a stickler for staying abreast of the latest in underground technology and in proactively pursuing customer relationships. He was later joined by his brother Marshall. Cliff and Marshall had grown up in a working-class family. They had never been exposed to social and business networking But Cliff took up golf and both he and Marshall began attending industry association events. Soon the St. Louis construction industry knew the Murphy brothers and their work ethic.
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Electric Logging
Electric logging uses the marked differences in electrical properties between fine-grained sediments (shale, clay, and silt) and coarser-grained material (sandstone, sand, and gravel), to identify stratigraphic units from logs of electrical resistivity and natural electric potentials. Electric logging encompasses a number of specific techniques, including single-point resistance, spontaneous potential (SP), resistivity, and electromagnetic induction (EM). Single-point resistance simply involves measuring the bulk resistance between a surface electrode and the downhole probe
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Provider:  Geosphere Inc
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Environmental Drilling
Pearson Drilling Company specializes in environmental drilling and services using efficient and environmentally-responsible equipment for your project. All auger drills are equipped with automatic hammers. CME and Acker drills have grout pumps mounted on the drill and are capable of mud rotary, rock coring, and auger drilling. We drill environmental-related borings and wells, heat pump boreholes, geotechnical drilling, shallow and deep (500') wells and much more
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Hollow Stem Auger Drilling
Talon was formed in 1999 as an environmental and geotechnical drilling company. We provide cost-effective and high quality drilling services to engineering and environmental consulting firms. Our drillers have conducted subsurface investigations for firms in New Jersey, Pennsylvania, Maryland, Delaware, New York and Virginia. Talon has the ability to drill in any subsurface condition. We offer a full range of drilling capabilities, backed by extensive experience and industry knowledge. We can handle any drilling formation. That familiarity, coupled with our flexibility, allows us to perform drilling with methods that best suit your particular project. We have an NJDEP certified master well driller on staff, which allows us to get approval, abandon, and file decommissioning reports for every type of existing well.
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InsightGT HD Electric Line

The InsightGT HD Electric Line Camera was designed with geothermal in mind.  InsightGT pairs the image acquisition and telemetry electronics of Insight3 with a downward-looking imager, and repackages them in a purpose-built flasked housing.

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Provider:  Downhole
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Inspection Services

We provide high resolution video surveys of dry or water filled boreholes with diameters as small as 2.5 in (63.5 mm) and to a maximum depth of 1000 ft (300 m). During the video surveying of a borehole, the depth is continuously displayed so notes on borehole conditions can be recorded. Also, the camera can be toggled from a down-the-hole view to a side-view, with the high intensity LEDs, so significant changes in the borehole can be recorded. The side-view camera has continuous 360 degree rotation to clearly record the full perimeter of the borehole.

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Provider:  RAM
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