A comparison of water-jet, abrasive jet and rotary diamond drilling in hard rock Construction activities which require the placement of utilities in hard rock would benefit from a lightweight system which is capable of accurately drilling a short constant radius arc.
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Cigar Lake's Jet Boring Mining Method Cameco Corporation, on behalf of a joint venture, is preparing surface and underground facilities at their northern Saskatchewan property in preparation for the future operation of a high grade uranium mine.
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Compressed-Water Pulse Generators and Applications A compressed-water pulse generator consists of a heavy-walled pressure vessel equipped with a fast-opening discharge valve. At ultra-high-pressure - UHP>100 MPa - water has significant compressibility, allowing storage and discharge of energetic pulses from a compact tool.
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Development of a downhole separator and intensifier for coiled tubing jetting Wells often build scale deposits on the inside of their
tubulars that can impede production or interfere with a
workover operation. When this scale buildup is over long
intervals, coiled tubing (CT) is often the conveyance system
used to deliver either acid, drilling or jetting technologies to remove the scale.
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Development of a waterjetting cable burial system for a broad range of soils in up to 2500-meters of seawater An ROV deployed post lay cable burial system has
been developed. This system has been
demonstrated to bury cable in a single pass to a
depth of cover of 1 meter in a wide range of soil
conditions.
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Ejector subassembly for dual-wall air drilling Ejector subassembly for dual-wall air drilling.
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Feasibility of Drilling with Compressed CO2 for Autonomous Water Exploration on Mars (Slide Presentation) Tempress Technologies goes to Mars.
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Hydraulic Pulse Drilling Slow penetration rates in deep, over-pressurized formations represent a critical challenge for gas drilling operations. Hydraulic pulse drilling is designed to increase overbalanced
drilling rates by generating suction pulses at the drill bit and by fluidizing the drillstring.
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Hydraulic Pulse Generator for non-Explosive Excavation paper published in Mining Engineering
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HydroPull Coil Test Data from yard test of HydroPull tool on coil
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HydroPull Presentation Powerpoint presentation on HydroPull principles and application case histories
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HydroPulse™ Drilling Test Report Tempress’ HydroPulse™ tool increases overbalanced drilling rates by generating intense suction pulses at the drill bit.
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Hyper-Pressure Pulse Excavation A presentation discussing the use of hyper-pressure pulses for rock excavation
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Increasing drilling rate in deep boreholes by impulsive depressurization Impulsive depressurization of the borehole can result in
effective tensile stresses in the rock face that overcome the confining pressure.
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Jet Drilling with Supercritical Carbon Dioxide Under the pressure and temperature conditions found while drilling a typical oil or gas well, carbon dioxide exists as a supercritical fluid; with a density near that of water and extremely low viscosity. These properties should enhance jet erosion of rock and reduce dynamic confinement loads during mechanical drilling in a pressurized borehole.
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Jet TurboDrill for Enhanced Geothermal System Development Results of drilling tests in granite, basalt and cement and application to multilateral geothermal well completions
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Microhole Jet Drilling Tempress’ Mechanically-Assisted Jet Drilling project involves the development of a downhole intensifier (DHI) to boost the hydraulic pressure available in conventional coiled tubing to the level required for high-pressure jet erosion of rock.
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Moving an Ice Mountain Testing of an iceberg drill anchor system.
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Seafloor drilling of the hydrate economic zone for production of natural gas The economic production of natural gas from oceanic hydrate deposits will not occur using conventional
offshore drilling systems. By definition, hydrated formations will produce wet gas at low pressure and
low production rates.
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