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On geological and technological aspects of oriented n-size core diamond drilling
Abstract A device has been developed to obtain N-size oriented bore cores in diamond drilling operations in both the Southern and Newcastle Coalfields of the Sydney Basin, New South Wales, and the Bowen Basin, Queensland. Use of this orientation device in Permian and Triassic sedimentary rocks in both basins proved to be successful in obtaining suitable samples for tectonophysical studies. The overburden of the Coal Measures and the interseam sedimentary sequences which are horizontally deposited consist of conglomerates, sandstones, shales, mudstones and claystones. Cyclic sedimentation patterns are present. Well developed sedimentary planes and prominent sedimentary vectorial features create mechanical anisotropies. Distinct joint patterns exist in these rocks. The geometric and kinematic analysis of these features using petrofabric analysis methods is of importance in the efficient planning of colliery development particularly regarding directional mining and strata control. Slim hole diamond drilling is the main exploration tool used in most economic mineral environments and as non-oriented cores are limited in the information they provide, the orientation device described in this paper has been developed.
On geological and technological aspects of oriented n-size core diamond drilling
Abstract A device has been developed to obtain N-size oriented bore cores in diamond drilling operations in both the Southern and Newcastle Coalfields of the Sydney Basin, New South Wales, and the Bowen Basin, Queensland. Use of this orientation device in Permian and Triassic sedimentary rocks in both basins proved to be successful in obtaining suitable samples for tectonophysical studies. The overburden of the Coal Measures and the interseam sedimentary sequences which are horizontally deposited consist of conglomerates, sandstones, shales, mudstones and claystones. Cyclic sedimentation patterns are present. Well developed sedimentary planes and prominent sedimentary vectorial features create mechanical anisotropies. Distinct joint patterns exist in these rocks. The geometric and kinematic analysis of these features using petrofabric analysis methods is of importance in the efficient planning of colliery development particularly regarding directional mining and strata control. Slim hole diamond drilling is the main exploration tool used in most economic mineral environments and as non-oriented cores are limited in the information they provide, the orientation device described in this paper has been developed.
On geological and technological aspects of oriented n-size core diamond drilling
Moelle, K.H.R. (author) / Young, J.D. (author)
Engineering Geology ; 4 ; 65-72
1969-05-30
8 pages
Article (Journal)
Electronic Resource
English
Geological aspects due to a horizontal drilling
| British Library Conference Proceedings | 1992
| Engineering Index Backfile | 1957