Get Practical Petrophysics, Volume 62 PDF

By Martin Kennedy

ISBN-10: 0444632700

ISBN-13: 9780444632708

Practical Petrophysics appears at either the foundations and perform of petrophysics in knowing petroleum reservoirs. It concentrates at the instruments and methods in daily use, and addresses all kinds of reservoirs, together with unconventionals.

The ebook presents beneficial motives on tips to practice healthy for function interpretations of petrophysical information, with emphasis on what the interpreter wishes and what's virtually attainable with actual information. Readers will not be constrained to static reservoir houses for enter to volumetrics, because the ebook additionally contains functions akin to reservoir functionality, seismic characteristic, geo-mechanics, resource rock characterization, and more.

  • Principles and perform are given equivalent emphasis
  • Simple types and ideas clarify the underlying principles
  • Extensive use of latest, real-life examples

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Extra resources for Practical Petrophysics, Volume 62

Example text

1 shows some porosity ranges for some real examples of clastic and carbonate reservoir rocks. To make progress in petrophysics it is helpful to start with simple models (either physical or theoretical). Suitable models to understand porosity are porous solids made from spherical grains. The simplest examples use uniform spheres arranged in an array. In these cases the porosity can be calculated exactly. Some examples of small parts of such arrays are shown in Fig. 1 Porosity ranges for clastics (a) and carbonates (b).

The results were passed on to the other disciplines – often as an attachment on an e-mail – to incorporate in volumetric calculations or a Introduction Chapter | 1 19 coarse dynamic reservoir model. The petrophysicist, their work done, moved to the next problem. There appeared to be no real reason for the other disciplines to understand what exactly the petrophysical interpretation involved or for the petrophysicist to know how their results were being used. The increasing use of software to build detailed 3D geological models of reservoirs has meant that petrophysics has to be properly integrated with the other sub-surface disciplines.

We will look at these in more detail later. Total porosity is often justified as the better description because that is what is measured in core analysis. This is because most companies thoroughly dry the core plugs before measuring porosity and even the water bound to the clays is driven off. So, if a porosity calculated from logs is compared to measurements on core plugs we are implicitly comparing to a total porosity. Furthermore, to find the total porosity from logs we only need to find the total volume of water in the system (although with conventional logs that may be easier said than done).

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Practical Petrophysics, Volume 62 by Martin Kennedy


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