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- Well Drilling > Wellbore Design > Rock properties (0.40)
- Reservoir Description and Dynamics > Reservoir Characterization > Reservoir geomechanics (0.40)
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
- Well Drilling > Wellbore Design > Rock properties (0.40)
- Reservoir Description and Dynamics > Reservoir Characterization > Reservoir geomechanics (0.40)
- Information Technology > Knowledge Management (0.60)
- Information Technology > Communications > Collaboration (0.60)
The determination of a reservoir's mechanical properties is critical to reducing drilling risk and maximizing well and reservoir productivity. Acoustic logging can provide information helpful to determining the mechanical properties of reservoir rock. Mechanical properties include: * Elastic properties (Young's modulus, shear modulus, bulk modulus, and Poisson's ratio) [SeeStress strain relationships in rocks for calculations of these properties] * Inelastic properties (fracture gradient and formation strength) Elasticity is the property of matter that causes it to resist deformation in volume or shape. Hooke's law describes the behavior of elastic materials and states that for small deformations, the resulting strain is proportional to the applied stress. Depending on the mode of the acting geological force and type of geological media the force is acting upon, three types ofdeformation can result as well as three elastic moduli that correspond to each type of deformation.
- Well Drilling > Wellbore Design > Rock properties (1.00)
- Reservoir Description and Dynamics > Reservoir Characterization > Reservoir geomechanics (1.00)
- Reservoir Description and Dynamics > Formation Evaluation & Management > Open hole/cased hole log analysis (1.00)
- Information Technology > Knowledge Management (0.41)
- Information Technology > Communications > Collaboration (0.41)
Rock and fluid properties provide the common denominator around which we build the models, interpretations, and predictions of petroleum engineering, as well as geology and geophysics. We consider here the properties of sedimentary rocks, particularly those that make up hydrocarbon reservoirs. Usually, these consist of sandstones, limestones, and dolomites. We must be more inclusive, and consider rocks such as shales, evaporates, and diatomites because these provide the seals, bounding materials, or source rocks to our reservoirs. It is important to note that shales and claystones make up the most abundant rock type in the typical sedimentary column.
- North America > United States > Texas (1.00)
- Europe (1.00)
- Geology > Rock Type > Sedimentary Rock > Carbonate Rock (1.00)
- Geology > Geological Subdiscipline (1.00)
- Geology > Rock Type > Sedimentary Rock > Clastic Rock > Mudrock > Shale (0.70)
- Geophysics > Seismic Surveying > Seismic Processing (1.00)
- Geophysics > Seismic Surveying > Seismic Modeling > Velocity Modeling (1.00)
- Geophysics > Gravity Surveying (1.00)
- (3 more...)
- Well Drilling > Wellbore Design > Rock properties (1.00)
- Reservoir Description and Dynamics > Reservoir Characterization > Seismic processing and interpretation (1.00)
- Reservoir Description and Dynamics > Reservoir Characterization > Reservoir geomechanics (1.00)
- (5 more...)
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
- Information Technology > Data Science (0.34)
Many theoretical models have been developed to predict or correlate specific physical properties of porous rock. Most theoretical models are built on simplified physical concepts: what are the properties of an ideal porous media. However, in comparison with real rocks, these models are always oversimplified (they must be, to be solvable). Most of these models are capable of "forward modeling" or predicting rock properties with one or more arbitrary parameters. However, as is typical in earth science, models cannot be inverted from measurements to predict uniquely real rock and pore-fluid properties.
- Geology > Geological Subdiscipline > Geomechanics (1.00)
- Geology > Rock Type > Sedimentary Rock > Clastic Rock (0.34)
- Reservoir Description and Dynamics > Reservoir Characterization > Reservoir geomechanics (1.00)
- Well Drilling > Wellbore Design > Rock properties (0.74)
- Information Technology > Knowledge Management (0.41)
- Information Technology > Communications > Collaboration (0.41)
- Well Drilling > Wellbore Design > Rock properties (0.96)
- Reservoir Description and Dynamics > Reservoir Characterization > Reservoir geomechanics (0.96)
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
- Well Drilling > Wellbore Design > Rock properties (1.00)
- Reservoir Description and Dynamics > Reservoir Characterization > Reservoir geomechanics (1.00)
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
ABSTRACT: Some of the significant developments in the field of mining rock mechanics are reviewed. Three time periods are considered: pre-history to 1960, 1960 to 1983, and 1983 to date. Significant advances were made in this field during the middle period, which is defined as the renaissance era. In the most recent and current period research activity in this field has declined and the emphasis has been on transferring knowledge to mining operations. The research needs for mining rock mechanics as we move into the 21 century are considered. RÉSUMÉ: Certains des developpements significatifs de la mecanique des roches appliquee à l'exploitation minière sont passes en revue. Trois periodes sont considerees; de la prehistoire à 1960, de 1960 à 1983 et de 1983 à aujourd'hui. D'importants progrès ont ete accomplis durant dans la 2ième periode, que I'on definit comme une ère de renaissance. Durant la dernière periode, la recherche en geomecanique a diminue d'intensite au profit de la mise en application des connaissances existantes dans l'industrie minière. Alors que nous entrons dans Ie 21ième siècle, les besoins de recherche de I'industrie minière en mecanique des roches sont consideres. ZUSAMMENFASSUNG: Dieser Überblick schilderet einige der bedeutungsvollsten Entwicklungen in der Bergbaurock mechanik, und fuehrt uns durch drei Epochen des Bergbaus. Prahistorisch bis 1960, 1960 bis 1983, und 1983 bis Heute. Bedeutungsvolle Entwicklungen erfolgten wahrent der mittleren Epoche, der Renaissance. In den letzten undo heutigen Epochen sind Forschungsactifitaten zurueckgegangen, der Schwerpunk beschrankte sich auf die Üebertragung von Wissen auf Bergbauunternehmen. Übergehend in das 21. Jahrhundert ziehen wir in Betrachtung das Beduerfnis fuer Forschung in der Bergbaurockmechanik. 1 INTRODUCTION We make a case that the renaissance period (in the sense of a period of vigorous artistic and intellectual activity) for the field of mining rock mechanics, and perhaps rock mechanics generally, was from (roughly) the beginning of the 1960s to (again roughly) 1983, the year of the Fifth Congress of the International Society for Rock Mechanics. The design of excavations for mining has, of course, occupied mankind from the dawn of history and numerous research workers and mining practitioners had, prior to this time, made important contributions to the mining rock mechanics field. However, the rapid global expansion of mining activity following World War II created an urgent need to improve the design of rock excavations. In the 1950s and 60s mines were being opened at an unprecedented rate, new mining techniques were being introduced, and mines (both surface and underground) were operating at hitherto unknown depths. This activity highlighted the need for a more scientific approach to excavation design. This need attracted the interest and attention of some very talented people at a number of centres around the world. We begin this paper by, reviewing briefly the prerenaissance period of rock mechanics. Next we discuss some of the major issues identified for mining rock mechanics during the 1950s and'60s. We discuss the leaders who emerged during the '60s, '70s and early '80s to tackle these issues and we review some of the main approaches that were developed in this period to solve these problems.. The post-renaissance period (1983 to today) has been one of consolidation of knowledge, refinement of technique, incremental advances, and, importantly, transfer of knowledge from the research specialist to the consulting engineer. In keeping with the trend in other industries, today a mining company is more likely to outsource (to use the current jargon) to consultants the bulk of its rock mechanics needs than it is to employ a number of its own experts in this field. We comment on this trend and, in particular, we highlight the need to manage this interface between consultant and mining operator well, in the interests of both mine safety and mining productivity.
- North America > United States (1.00)
- Africa (1.00)
- North America > Canada (0.93)
- (3 more...)
- Overview (1.00)
- Research Report > New Finding (0.45)
- Research Report > Experimental Study (0.45)
- Geology > Rock Type > Sedimentary Rock > Organic-Rich Rock > Coal (1.00)
- Geology > Geological Subdiscipline > Geomechanics (1.00)
- Geology > Mineral > Native Element Mineral > Gold (0.93)
- Materials > Metals & Mining > Coal (1.00)
- Energy > Oil & Gas > Upstream (1.00)
- Materials > Metals & Mining > Gold (0.93)
- Government > Regional Government > North America Government > United States Government (0.46)
- Asia > India > Karnataka > Kolar Gold Field (0.99)
- Oceania > Australia (0.91)
- Europe > Russia > Northwestern Federal District > Komi Republic > Timan-Pechora Basin > Pechora-Kolva Basin > Usa Field (0.89)
- (2 more...)
- Well Drilling > Wellbore Design > Rock properties (1.00)
- Reservoir Description and Dynamics > Reservoir Characterization > Reservoir geomechanics (1.00)