COLDfire Mining
Oil & Gas Drilling Test Program
A number of tests have been undertaken in the United States on rock drilling equipment. While the tests are incomplete in that they are still to be conducted in all mediums of ground makeup, the tests have given an excellent insight into the improvements effected by treatment with the COLDfire Thermal Cycling process.
Testing is currently being conducted in both land and offshore Oil and Gas mining in the United States, Desert Oil mining in the Middle East and Underground Gold mining in Australia.
The rock drilling bits tested and reflected in the initial results all have rotating sealed bearings with Tungsten Carbide bits and cutters embedded into the OD of the rotating heads. All the bearings are all of Timken design.
Comparison Drilling Test Results
Well Bit Type    Drill Parameter    Total Ft Drilled   Drilling Time  Penetration Rate ft./hr. COLDfire treated Y / N
D&M Smith #1 Diamond Gauge 1240 3350 2110 14 hr 9 min 149.12 No (Control)
D&M Smith #2 Diamond Gauge 1215 3500 2285 16 hrs 47 min 135.15 No (Control)
D&M Smith #3 Carbide Tipped 1285 3630 2345* 15 hr 24 min 152.27 Yes
Control Drills were changed after drilling was completed. 
*The COLDfire treated drill was used to drill a further 1620 feet in a 12 hour shift


Conclusion of Test Protocols
With the second use of the treated drill to another 1610 feet on a second well that was started at 2000, below the profile depths of rock shale and sand formations so no direct comparison or conclusions of wear or penetration rate are valid to the tests. However, it is a significant factor that we drilled a total of 3955 feet between both wells with little deterioration in the exterior appearance of the bit (i.e. no buttons missing and in gauge). 
Given the performance of the treated carbide bits bettering the performance of the diamond bits we would like to conduct further testing with a set of diamond bits.
The Natural Gas Drilling bits are more basic in design and are used to hammer as well as turn as they are pushed into the ground. They are also designed with
tungsten carbide buttons on the heads to improve their wearability.
Information & Test results available here in PDF Format



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5 Rapid Street, Riverside Industrial Park, Nelspruit 1200, South Africa
PO Box 2063 Nelspruit, 1200, South Africa
Tel: 013 7524349 - Fax: 013 75 33468 - Tel: 0861 - COLDfire - email
Call us on  0861 - COLDFIRE
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