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Keywords: borehole
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Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47361-MS
... simulator upstream oil & gas sand prediction material model intranet borehole depletion SPE/lSRM 47361 State-of-the-Art Sand Prediction Based on an Intranet Push the Button Interface R. Viken, SPE, and H. Kjorholt, SPE, Statoil cwtw fm. sOddiOrwrmimimmismamic. Thii paper was pwpmwf...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47236-MS
... Abstract Borehole failures like drilling-induced fractures and breakouts observed inimage logs offer the possibility to derive high quality stress orientations. Image logs from 16 wells in the Northern North Sea are analysed for theoccurrence of borehole failures. While in wells to the west...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47234-MS
... Abstract In this paper the effects of borehole stress concentrations on both dipole flexural waves and azimuthally resolved, axially propagating compressional waves (i.e., microsonic) are studied. Dipole sonic logging tools provide the capability to measure acoustic anisotropy in the borehole...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47334-MS
... Abstract The mechanical stability of a borehole or perforation tunnels can have a critical influence on petroleum drilling and recovery processes. For instance, extensive failure of rock surrounding an open-hole completion may result in massive sand production. Furthermore, it is often...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47296-MS
...SPE/ISRM 47296 Thermoporoelastic Analyses of Inclined Boreholes X. Li, SPE, L. Cui, and J.-C. Roegiers, SPE, The University of Oklahoma Copyright 1998, Society of Petroleum Engineers, Inc. process. Due to the geothermal gradient, the drilling fluid is usually cooler than the formation when it first...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47272-MS
... Abstract The leak-off test (LOT) procedure has been examined within the theoretical framework pertaining to hydraulic fracturing stress measurements (HFSMs). LOT records have then been compared with the results of HFSMs where both measurements have been made in the same boreholes. From...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47282-MS
... Abstract Technological advances in drilling equipment, directional control and mud systems and a better understanding of reservoir properties have resulted in the drilling of an increasing number of highly deviated and horizontal wells. Along with these wells come the increasing borehole...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47315-MS
... for modelling the long term performance of the reservoir. P. 493 upstream oil & gas gpk 1 gpki circulation operation hydrocarbon reservoir borehole programme microseismic event stimulation microearthquake growth direction connectivity simulator grid fractured reservoir monitoring...
Proceedings Papers

Paper presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, July 8–10, 1998
Paper Number: SPE-47331-MS
... impact on the wellbore stability and sanding potential. Specifically, the risks for sand production and that for wellbore instability can be reduced significantly by controlling wellbore temperature and injection rate. P. 117 sand production wellbore integrity borehole strength spe 47331...
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 Rock Mechanics in Petroleum Engineering, August 29–31, 1994
Paper Number: SPE-28049-MS
... reservoir geomechanics prediction rupture mechanism mud weight wellbore stability identification elf aquitaine drilling operation borehole shale wellbore design instability wellbore integrity deformation INTRODUCTION Sometimes several drilling problems or casing failures occur...
Proceedings Papers

Paper presented at the Rock Mechanics in Petroleum Engineering, August 29–31, 1994
Paper Number: SPE-28077-MS
... in the fracture during a treatment. A large stress difference in the plane perpendicular to the perforations prevents starter fractures from linkage. Also, fracture linkage is affected by the cementation of the well. Fluid flow in the annulus between borehole and casing may results in better linkage...
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...
Proceedings Papers

Paper presented at the Rock Mechanics in Petroleum Engineering, August 29–31, 1994
Paper Number: SPE-28149-MS
... chronostratigraphic interval concentration central graben trajectory eccentricity data stress field southern north sea stress orientation reservoir geomechanics upstream oil & gas basin breakout breakout orientation zoback graben borehole reservoir characterization brereton stress trajectory...
Proceedings Papers

Paper presented at the Rock Mechanics in Petroleum Engineering, August 29–31, 1994
Paper Number: SPE-28051-MS
... spall size effect borehole failure mechanism INTRODUCTION Hollow-cylinder (HC) collapse tests are routinely performed on samples with an outer diameter of between 25 mm and 50 mm, the inner-hole diameter being between ⅓ and ¼ the size of the outer diameter [ 1 ]. The HC collapse strength (i.e...
Proceedings Papers

Paper presented at the Rock Mechanics in Petroleum Engineering, August 29–31, 1994
Paper Number: SPE-28035-MS
... Abstract Measurement of seismic structure at scales below «20m (the resolution limit of surfacegenerated seismic waves) requires borehole seismic sources and receivers. For borehole seismic data analysis, typical seismic imaging using plane wave propagation in 1-D layering must be supplanted...
Proceedings Papers

Paper presented at the Rock Mechanics in Petroleum Engineering, August 29–31, 1994
Paper Number: SPE-28054-MS
... and an anisotropic damage model. All these models are calibrated from the same triaxial test on a sandstone. The application of the models to a plane strain borehole allows to clearly show impacts of different irreversible deformation mechanisms on predicted wellbore stability. volumetric dilatancy microcrack...
Proceedings Papers

Paper presented at the Rock Mechanics in Petroleum Engineering, August 29–31, 1994
Paper Number: SPE-28061-MS
... to the damage seen in the wellbore experiments. reservoir geomechanics experiment aspect ratio damage zone variability orientation anisotropy bedding plane pierre shale rock mechanics borehole shale evolution upstream oil & gas axis reservoir characterization wellbore axis bedding...
Proceedings Papers

Paper presented at the Rock Mechanics in Petroleum Engineering, August 29–31, 1994
Paper Number: SPE-28118-MS
.... The backfill pressure shows a steady increase, which is however far below the initial stress state in the host rock. borehole drift closure compaction upstream oil & gas stress state cask tsde test heusermann host rock field measurement deformation thermally vertical stress test drift...
Proceedings Papers

Paper presented at the Rock Mechanics in Petroleum Engineering, August 29–31, 1994
Paper Number: SPE-28050-MS
... Abstract Laboratory testing of granite blocks containing a circular borehole was carried out with uniaxial and biaxial loading conditions, and with borehole diameters ranging from 5 to 103 mm. Borehole breakouts were also investigated in situ using borehole diameters ranging from 75 to 3500...

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