000			01942nab a2200205 4500
005			20260520000254.0
008			260224s2007 xxu
245	0	0	_aToward a quantitative definition of mechanical units: New techniques and results from an outcropping deep-water turbidite succession (Tanqua-Karoo Basin, South Africa)
260			_a _b _cago. 2007
270			_a07/06/2011 ; 07/06/2011
300			_a14 p. ; 1085-1098
520			_aTranscripción del resumen del autor. The physical properties of reservoirs are strongly influenced by distributed fracture fields. Outcrop studies are commonly used to determine them but have provided unsatisfactory results because the definition of mechanical units, i.e., (groups of) layers displaying homogeneous fracture patterns, is difficult and typically conducted in a qualitative manner. We have developed a systematic methodology to acquire and process fracture patterns in outcrops and to define their relation with stratigraphy. We dedicate particular attention to the vertical distribution of fractures in a sedimentary succession, commonly composed of layers of different thicknesses and compositions. The method makes full use of geographic information system technologies and allows for direct digital acquisition in the field leading to time-efficient acquisition. Data are processed with a newly developed routine that permits an objective description of the changes of fracture characteristics along the stratigraphy of the outcrop. The operator is then able to define the most suitable fracture stratigraphy. The integration of results from different outcrops is thought to provide a tool for predicting fracture distributions in subsurface target areas.
581			_a8
773	0		_tAAPG Bulletin _g91
942			_cARTICULO
100	1		_aBertotti, G. _950172
100	1		_aHardebol, N. _950173
100	1		_aTaal-van Koppen, J.K. _950174
999			_c182410 _d182410