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Doctor Neutron now provides working copies of his nuclear micro-geophysical model in two versions: LVPM.exe for a fixed/selectable pore size and LVFPM.exe for a range of pore sizes at a fixed/selectable fractal dimension. Both are meant for the Microsoft Windows environment. Security procedures are involved.
Doctor Neutron will also soon release information on his recent work in the field of gamma spectroscopy, including (1) gain shifting, (2) gain stabilization, and (3) Gram-Schmidt Orthonormalization (GSO) applied to natural gamma ray spectra to extract (K, U, Th) content. See ahead 3.
GSO may also be used to extract (H, Cl, Fe, Ca, Si) information from thermal neutron capture gamma spectra and (C, O, Fe, Si, Ca) content from inelastic neutron scattering gamma spectra. GSO is also being explored for obtaining density and Pe values from litho-density spectra.
GSO minimizes realtime computations and avoids the need for perilous/dicey matrix inversions in realtime for all these applications.
Finally, Doctor Neutron will release information on his work using Van-Cittert Deconvolution of thermal neutron capture gamma ray time spectra from a pulsed neutron generator to compute (a) thermal neutron diffusion coefficient 4,
(b) Neutron Porosity, (c) Bulk Density, and (d) Intrinsic Sigma.
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Doctor Neutron had added a brief description of his two patents on the use of
neutron activation analyses in frac height and frac location detection for the
fracking industry. These new methods greatly reduce the environmental
impact caused by using nuclear technology in this burgeoning field.
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Doctor Neutron had previously added a .pdf image of his paper entitled "PORE SIZE, ORIENTATION AND SHAPE; LAMINAE; AND FRACTAL DIMENSION EFFECTS ON THE RESPONSE OF SEVERAL NUCLEAR LOGGING TOOLS". This paper was first published in the Proceedings of the 2009 SPWLA Annual Logging Symposium, The Woodlands, Texas, as Paper Y.
For the laminae examples, small formal effects on formation sigma were observed and much larger effects on neutron porosity. Some interesting results are predicted for open hole bulk densities in sand-shale laminae. These heterogeneous predictions are based on non-linear mixing of the gamma ray linear attenuation coefficients with the result that gamma transmission in the two media becomes interdependent.
The insensitivity of a new cased hole bulk density measurement to Montmorillonite laminae intrusion into an oil sand needs further investigation using both the new Transmission Probability Method and Monte Carlo modeling. These same methods can also be used to continue study of the impact of pore size, laminae, and fractal dimension on direct measurement of the thermal neutron diffusion coefficient from the Chappell Hill Logging multi-detector pulsed neutron logging tool.
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