Abstract
The maximum reported height of an upward propagating hydraulic fracture from several thousand fracturing operations in the Marcellus, Barnett, Woodford, Eagle Ford and Niobrara shale (USA) is ∼588 m. Of the 1170 natural hydraulic fracture pipes imaged with three-dimensional seismic data offshore of West Africa and mid-Norway it is ∼1106 m. Based on these empirical data, the probability of a stimulated and natural hydraulic fracture extending vertically >350 m is ∼1% and ∼33% respectively. Constraining the probability of stimulating unusually tall hydraulic fractures in sedimentary rocks is extremely important as an evidence base for decisions on the safe vertical separation between the depth of stimulation and rock strata not intended for penetration.
Original language | English |
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Pages (from-to) | 1-6 |
Number of pages | 6 |
Journal | Marine and Petroleum Geology |
Volume | 37 |
Issue number | 1 |
DOIs | |
Publication status | Published - Nov 2012 |
Externally published | Yes |
ASJC Scopus subject areas
- Oceanography
- Geophysics
- Geology
- Economic Geology
- Stratigraphy
Keywords
- Fracture
- Natural
- Pressure
- Shale
- Stimulated