Browsing ERL Industry Consortia Technical Reports by Author "Schmitt, D. P."
Now showing items 1-10 of 10
-
Acoustic Logging Guided Waves In Transversely Isotropic Formations
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1988)We have studied the velocity dispersion of guided waves in transversely isotropic formations. Theoretical velocity dispersion curves were calculated with elastic constants based on laboratory and field measurements and ... -
Full Wave Synthetic Acoustic Logs In Saturated Porous Media Part I: A Review Of Biot's Theory
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1986)Hydrocarbon exploration is especially concerned with two phase media. Following Biot, such finite porosity rocks are modeled as statistically isotropic materials composed of a solid elastic matrix permeated by a network ... -
Full Wave Synthetic Acoustic Logs In Saturated Porous Media Part II: Simple Configuration
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1986)The discrete wavenumber method is used to compute synthetic full waveform acoustic logs in an axisymmetric fluid-filled borehole surrounded by a porous medium. The two phase formation is modeled following Biot's theory. ... -
Full Wave Synthetic Acoustic Logs In Saturated Porous Media Part Ill: Pore Shape And Pore Geometry Effects
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1986-01-01)Homogenization theory states that the viscous and mass coupling coefficients of a fully saturated porous medium depend upon the pore shape and the pore geometry. Using an approximate formula, the three body wave velocities ... -
Logging in Multilayered Saturated Porous Formations
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1987)We present a general formulation based on the Thomson-Haskell method which allows the study of complex models. The surrounding formation may be composed of several coaxial porous shells or of a combination of both porous ... -
Permeability Estimation from Field Data
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1987)Strong correlations exist between core measured permeability values and the phase velocity and attenuation of the tube wave obtained from full waveform acoustic logs. A number of authors have applied the Biot theory to ... -
Shear Wave Logging In (Multilayered) Elastic Formations: An Overview
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1987)We perform the analysis of the dispersion and attenuation of the modes generated both by a dipole and quadrupole source in a fluid filled borehole surrounded by a (multilayered) elastic formation. The displacement-stress ... -
Shear Wave Logging In Semi-Infinite Saturated Porous Formations
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1987)Recent theoretical and experimental studies have demonstrated the interest of using non-axisymmetric sources, such as dipole and quadrupole, to record shear wave events in any kind of formation (fast or slow). Non-axisymmetric ... -
Transverserly Isotropic Saturated Porous Formations: 1. Theoretical Developments And (Quasi) Body Wave Properties
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1988)Using the results of homogenization theory, the constitutive equations for an anisotropic porous formation saturated by a Newtonian viscous fluid are derived. The transverse isotropy situation is investigated in terms ... -
Transverserly Isotropic Saturated Porous Formations: II. Wave Propagation And Application To Multipole Logging
(Massachusetts Institute of Technology. Earth Resources Laboratory, 1988)The wavefields generated by monopole and dipole sources in a fluid filled borehole embedded in multilayered transversely isotropic saturated porous formations are studied. The layers are modeled following Biot theory ...
