Geologic analysis of naturally fractured reservoirs by Ronald A. Nelson

By Ronald A. Nelson

Geologists, engineers, and petrophysicists enthusiastic about hydrocarbon creation from clearly fractured reservoirs will locate this publication a precious instrument for acquiring pertinent rock facts to guage reserves and optimize good place and function. Nelson emphasizes geological, petrophysical, and rock mechanics to counterpoint different reviews of the topic that use good logging and classical engineering approaches.This good equipped, up to date version encompasses a wealth of box and laboratory facts, case histories, and useful recommendation. a good how-to-guide for an individual operating with fractured or hugely anisotropic reservoirsProvides real-life illustrations via case histories and box and laboratory information

Show description

Read Online or Download Geologic analysis of naturally fractured reservoirs PDF

Best geology books

Physical Geodesy

"Physical Geodesy" by way of Heiskanen and Moritz, released in 1967, has for a very long time been regarded as the traditional advent to its box. the big development in view that then, in spite of the fact that, required a whole remodeling. whereas easy fabric should be retained different components required a whole replace.

Advances in Earthquake Engineering for Urban Risk Reduction (NATO Science Series: IV: Earth and Environmental Sciences)

Earthquakes affecting city parts may end up in catastrophic occasions and risk mitigation calls for preparatory measures in any respect degrees. Structural review is the prognosis of the seismic healthiness of constructions. review is the prelude to judgements approximately rehabilitation or perhaps demolition. the size of the matter in dense city settings brings a couple of want for macro seismic appraisal approaches simply because huge numbers of current structures don't agree to the elevated necessities of recent earthquake codes and requisites or produce other deficiencies.

Amazonian Dark Earths: Wim Sombroek's Vision

Amazonian soils are virtually universally considered tremendous forbidding. despite the fact that, it really is now transparent that advanced societies with huge, sedentary populations have been current for over a millennium sooner than eu touch. linked to those are tracts of anomalously fertile, darkish soils termed terra preta or darkish earths.

The boundaries of the West African craton

The bounds of inflexible cratons might be tormented by next orogenic occasions, resulting in 'metacratonic' features infrequently effectively well-known and nonetheless poorly understood. significant lithospheric thickening is absent and early occasions similar to ophiolites are preserved; even if, metacratonic barriers are laid low with significant shear zones, plentiful magmatism and mineralizations, and native high-pressure metamorphism.

Extra info for Geologic analysis of naturally fractured reservoirs

Sample text

Along these lines, regional fracture trends have been used by Engelder and Geiser (1980) to map paleostress fields on a regional scale. The origin of regional fractures is obscure. Many theories have been proposed, ranging from plate tectonics to earth tides (fatigue); however, none have proven conclusive. At present, they are considered to be due to the application of external or surface forces. They are probably developed with respect to vertical earth movements, but their distribution indicates that the scale of this movement is much larger in areal extent than anything we see in local structures.

Figure 1–14 shows a mud pan with about 1 m of relief from its top edge to the bottom of the evaporating pan. The clay was saturated with water when this pan began as a small water pool. Upon drying, the clay desiccated and contracted upon the loss of water. In the center of the pan, contraction created tension fractures with a polygonal pattern or distribution on the surface. The center of the pan was flat and contracted equally in all azimuths. However, as seen in Figure 1–14, at the edges of the pan where the clay surface experiences dip (toward the center of the pan), the polygonal pattern of tension fractures gives way to an orthogonal pattern; two fracture directions perpendicular to the surface with one in the local dip directions and one in the local strike direction.

At a large scale (the entire flank) most or all of the elements of the total fracture pattern of the fold would be expressed on a strike histogram or pole plot of all fractures. However, not all elements will be expressed at every point on the fold. In other folds, the distribution of orientations tends to be more regular (Figure 1–9). The difference is that each fold has uniqueness in its strain pattern during folding. The distribution of various elements of the fold-related fracture geometry that are utilized on the structure during deformation will vary.

Download PDF sample

Rated 4.31 of 5 – based on 25 votes