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Keywords: sandstone
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Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics Conference, October 20–23, 2002
Paper Number: SPE-78172-MS
... hydrostone. They found that the breakdown pressures increased systematically with the pressurization rates. Zoback et al. 4 tested the effect of borehole pressurization rate on the breakdown and fracture initiation pressures using Ruhr and Weber sandstones; both rock types having a permeability ranging...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics Conference, October 20–23, 2002
Paper Number: SPE-78155-MS
... was formed. In all experiments core flooding took place during the stress changes, either single-phase core flooding, oilflooding at S wi or waterflooding at S or . The experiments were performed on a water-wet sandstone. The deformation experiments were performed over a range of confining stress. Single...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics Conference, October 20–23, 2002
Paper Number: SPE-78207-MS
... as stress-corrosion cracking). We have measured the subcritical fracture properties of numerous sedimentary rocks, including core samples from petroleum reservoirs, in conjunction with detailed petrographic analysis. Our preliminary results suggest that carbonates and sandstones tend to have very different...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics Conference, October 20–23, 2002
Paper Number: SPE-78168-MS
... of fields worldwide. od id ratio pptb reservoir surveillance reservoir pressure sandstone perforation permeability strength experiment reservoir characterization production control formation permeability sand production production monitoring spe isrm 78168 drillstem testing reynold...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics Conference, October 20–23, 2002
Paper Number: SPE-78158-MS
... of concept of the method has been provided using extensive experimental work on outcrop sandstone 2 (which was subjected to a stress path simulating burial, coring and core retrieval to surface), a simple analytic model 3 and numerical simulations using a 3D discrete particle method 4 . Recently...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics Conference, October 20–23, 2002
Paper Number: SPE-78170-MS
....) on the strength and elastic properties of shale 1,2 , chalk 3,4,5 , and sandstone 1,6,7,8,9,10,11 . In summary, those experiments found that: Strength reduction with increased saturation is generally found for all rock samples, with a strength reduction of from 8% 6 to 98% 7 , depending on rock texture...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics Conference, October 20–23, 2002
Paper Number: SPE-78154-MS
.... In sandstones, the decrease was 50% or more. A bulk modulus decreased of 50% causes the compressibility near the wellbore to increase by 50%. Depending on the lithology, Poisson's ratio decreased or increased slightly. For limestones and shales, the differences between the moduli of lased and unlased samples...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics Conference, October 20–23, 2002
Paper Number: SPE-78193-MS
... horizontal completions are implemented only in very competent, hard formations that pose little risk for wellbore collapse and/or sand production, such as dolomites, hard limestones, hard sandstones, and shale-free siltsones. The advantages of barefoot completions are: Low completion cost Simple...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics Conference, October 20–23, 2002
Paper Number: SPE-78213-MS
... rocks, no deformation process seal is required. Conversely, faults can seal where there is sand/sand juxtaposition across the fault plane and cataclastic processes have reduced pore throat sizes such that the fault zone itself acts as a membrane seal. juxtaposition reservoir sandstone...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics Conference, October 20–23, 2002
Paper Number: SPE-78198-MS
... for geomaterials such as shales, poorly consolidated sandstones and North Sea Chalks for use in analytical and computational procedures is a key aspect of petroleum geomechanics. The importance of constitutive laws has increased with the development of more sophisticated finite element analysis and other numerical...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics Conference, October 20–23, 2002
Paper Number: SPE-78234-MS
... cavity sand production prediction reservoir geomechanics reservoir characterization sandstone boundary 8/12/02 Copyright 2002, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the SPE/ISRM Rock Mechanics Conference held in Irving, Texas, 20-23 October 2002...

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