Seismic Profile Essay - 1265 Words

Use of Seismics for Lithology Characterization Aditya Chakravarty Abstract This paper studies the application of Rock Physics Models by using Seismic and Well log data to characterize the reservoir sedimentological parameters (viz. Porosity, sorting, cement content and fluid saturation). When properly constrained by local subsurface environment, rock physics models can be used to predict the reservoir quality away from wells. Various researchers have applied a combination of theoretical and heuristic models to generate diagnostic Rock Physics templates (RPT’s). These RPT’s show the trend of Seismic attributes (Acoustic impedance, VP/VS ratio, Elastic Moduli and) of rocks with changing geological parameters like cementing, sorting,†¦show more content†¦These models premise that the inclusions are ellipsoidal or penny-shaped. Although the Inclusion Models have significantly furthered our understanding of the effects of compliant inclusions in rocks, the simplistic assumption of the pore shapes makes it difficult to compare them to actua l pore geometries. Displacement Discontinuity models represent the elastic response of rocks with oriented fractures under low frequency (e.g. Schoenberg and Douma, 1988; Sayers and Kachanov, 1995; Schoenberg and Sayers 1995). These models assume fractures to be infinitesimally thin displacement breaks which are defined by their normal and shear compliances. This represents the additional compliance of the rock in comparison to the matrix, due to the presence of fractures. Their usage necessitates the knowledge of fracture compliances and over-simplifies the complex nature of fractures as mere planes of discontinuity. Computational Models (e.g. Knackstedt et al., 2009) represent the actual geometry of the porous dry frame through rigorous imaging using Computed Tomography (CT) scanning. The mechanical response of the rock is also computed, using Finite Element Modelling (FEM) and Discrete Element Modelling (DEM) schemes. The obvious merit of such models is the realistic representation of the geometry and elastic moduli. A high computational capability requirement and expensive equipment for pore scale imaging are the factors that limit their usage. Contact Models representShow MoreRelatedDomestic And International Policy Formulation Essay2819 Words   |  12 Pagesmarket. Indeed, the development of New Zealand’s domestic economy and trade policy has undergone a seismic shift which has drastically altered our national patterns of trade since 1929. While export trade to the East is still in its infancy, it is becoming increasingly clear that there is a growing demand in the East for New Zealand agricultural products such as wool, meat, and dairy products. This essay aims to use the analysis provided by McNair in his article â€Å"New Zealand’s Trade with the East† asRead MoreReverse Heaven And Hell By Kimberly Van2106 Words   |  9 Pagesstories questioning who came up with the design. There was no concrete evidence that after Wyman succeeded Hunt he changed the now famous design. There are only stories that tell the Architect drawing inspiration from the well known Edward Bellany essay â€Å"Looking Backwards.† â€Å"Looking Backwards† is a prediction of the year 2000. He pens about a utopian and science fiction world. Mamuri interjects, shakes her head and says, â€Å"he wasn’t right about anything but the credit cards.† Post Commander, AnthonyRead MoreProject Mgmt296381 Words   |  1186 PagesIndividuals can enhance their power within an organization by managing extraordinary and critical projects. Power and status naturally accrue to successful innovators and risk takers rather than to steady producers. Many ambitious managers pursue high-profile projects as a means for moving quickly up the corporate ladder. For example, Lee Iacocca’s career was built on successfully leading the design and development of the highly successful Ford Mustang. Managers become heroes by leading projects that contributeRead MoreTop 1 Cause for Project Failure65023 Words   |  261 Pagesresearch functions as diverse as Arts to Engineering and Environment to Social Sciences).So we had from the beginning poor Stakeholder ownership. Involvement was varied from truculant to compliant. Then there was the Vendor Issue! Two high profile companies were involved in the database platform and desktop/back room hardware. There were twelve functional workstream leads in the Programme team. There was a Programme PMO. One vendor had its own PMO, the shared service company had a PMO.There