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Keywords: mechanism
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Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47585-MS
... chalk simulation pore collapse compressible porous chalk spe 47585 porous chalk chalk behavior enhanced recovery laboratory test compaction hydrostatic test triaxial test deviatoric mechanism water injection mechanism dependency schroeder spe 47585 reservoir characterization water...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47401-MS
... strain boundary condition creep reservoir characterization relaxation time mechanism pore pressure time constant deformation experiment upstream oil & gas reservoir geomechanics poisson boundary condition differential stress compression relaxation lentic sand stress relaxation...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47382-MS
...$u. SPE/lSRM 47382 Rock mechanical principles help to predict proppant flowback from hydraulic fractures J. S. Andrew, SPE, Statoil and H. Kjmholt, SPE, Statoil %wWhl 19% Soci@ al Petrc4wm Engineam Inc Thiw p$mer was pmpwed W presentatwn at the SP131SRM Eur!ack ,90 held m Tm dhwn, Nor.vay, &10...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47295-MS
... porosity brine parametric study mechanism society saturation deformation petroleum engineer porosity chalk acoustic creep injection shear wave velocity well logging effect compressibility proceedings prediction 4 series of measurements were carried out on each rock sample ( Table 1...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47310-MS
... Abstract This paper is based on a series of residual water analyses performed on Ekofisk Field chalk samples. The main objective of this work was to critically evaluate the importance of capillary suction as a cohesive mechanism in chalk. . Capillary suction models have been proposed...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47249-MS
... and observed the mechanism of failure that ultimately resulted in breakout formation. In lower porosity Berea sandstone (17%) we identified a breakout failure mechanism that is similar in its final V' shape to that observed in granite and limestone, and occurring along the ah spring line. This shape results...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47201-MS
... presented. Write tibrari~, SpE, p.o. W Ss5SSS, Ricfurdsco, T% 75CBS-Z336. U.S A,, fax 01-972-952-94S5. Abstract This paper is based on laboratory investigations of synthetic sandstone cemented under stress making it possibIe to perform mechanical tests directly from the simulated in situ stress state. We...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47196-MS
...SPE/ISRM 47196 The scratch test as a means to measure strength of sedimentary rocks T. Richard, E. Detournay, A. Drescher, P. Nicodème, D. Fourmaintraux Copyright 1998, Society of Petroleum Engineers, Inc. models is to establish the dependence of the cutting force on the mechanical parameters...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47259-MS
...-of-the-ant drilling fluid design criteria. The key drilling fluid-shale interaction mechanisms included in the study are mud pressure penetration, chemical potential and swelling-hydrational stress. Fundamental concepts, processes, models and a range of novel test equipment and procedures for laboratory...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47252-MS
... evidences urge for (he development of an improved way to analyze the stability of oil wells, due to the increase in challenges resulting from considering more difficult reservoirs. This paper presents an innovative way to analyze wellbore stability using energy concepts. The rock mechanics aspects...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47320-MS
... Abstract Micromechanical models of high porosity chalk and low porosity granite are presented to examine the mechanics of cracking and failure that occur in the rocks when they are subjected to stress. The models are run dynamically (with low numerical damping) to allow for dynamic fracture...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47340-MS
... maximum loading formalism mpa additional force application specific energy mechanism atmospheric pressure interpretation cutter friction equation bit selection failure criterion spe 47340 mud pressure loading orientation upstream oil & gas sandstone extreme loading hu...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47329-MS
... production was dramatic. The injection rate of all wells was aimed at analyzing the case. What follows is only a very brief above 8000 m3/d with wellhead pressures often at half the full summary of the study that looked at almost all possible pump capacity. mechanisms that could have been responsible...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47323-MS
... Abstract Wear development during bit life modify the mechanical response of PDC bits and reduce their efficiency. Contrary to cutting mechanism, friction mechanism on wear flats which develops on the cutters, remains badly understood. A new friction law based on numerical and experimental...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47324-MS
... network within a few tens of meters around the borehole. In addition, in order to compare the geometrical rupture parameters of the "multiplet" fractures with those of the "borehole" fractures, focal mechanisms of multiplets are modeled by using a statistical approach. This is done by combining...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47319-MS
... and applied a moment tensor inversion procedure to located AE. This allows a direct analysis of the mechanics driving the cracking. We present and compare results from two tests (triaxial loading and triaxial unloading) using Springwell sandstone to show the capabilities of the laboratory and processing...
Proceedings Papers

Paper presented at the Rock Mechanics in Petroleum Engineering, August 29–31, 1994
Paper Number: SPE-28049-MS
... Abstract Generally several deformation and rupture mechanisms are involved in the problems of wellbore stability and reservoir behaviour. Adequate prognosis of the main mechanism responsible for an unexpected behaviour is a fundamental step in proposing a remedy which sometimes may be unusual...
Proceedings Papers

Paper presented at the Rock Mechanics in Petroleum Engineering, August 29–31, 1994
Paper Number: SPE-28067-MS
... instabilities which arise during LTE may maintain a slow stable sand rate. This review of progress towards a physics-based massive sand production model with predictive capability would not be complete without a brief discussion of "foamy oil", a drive mechanism which we are currently working to incorporate...
Proceedings Papers

Paper presented at the Rock Mechanics in Petroleum Engineering, August 29–31, 1994
Paper Number: SPE-28037-MS
.... lattice mechanism upstream oil & gas beam element hydraulic fracturing specimen sandstone heterogeneity random lattice schlangen strength fracture experiment van mier load-displacement curve tensile test crack pattern boundary condition sen beam simulation crack propagation...
Proceedings Papers

Paper presented at the Rock Mechanics in Petroleum Engineering, August 29–31, 1994
Paper Number: SPE-28060-MS
... ABSTRACT Experimental work and numerical modelling have been applied to study mechanisms related to time dependent borehole stability during drilling in shales. Fully coupled numerical modelling showed that consolidation effects may act on a time scale of days, due to the low permeabilities...

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