Elizabeth L Diaz

US Patent:

20130182819, Jul 18, 2013

Filed:

Jan 10, 2013

Appl. No.:

13/738106

Inventors:

Jack Dvorkin - Houston TX, US
Naum Derzhi - Houston TX, US
Elizabeth Diaz - Houston TX, US
Joel Walls - Houston TX, US

Assignee:

Ingrain, Inc. - Houston TX

International Classification:

G01N 23/04

US Classification:

378 5

Abstract:

A method of evaluating a reservoir includes a multi-energy X-ray CT scan of a sample, obtaining bulk density and photoelectric effect index effect for the sample, estimation of at least mineral property using data obtained from at least one of a core gamma scan, a spectral gamma ray scan, an X-ray fluorescence (XRF) analysis, or an X-ray diffraction (XRD) analysis of the sample, and determination of at least one sample property by combining the bulk density, photoelectric effect index, and the at least one mineral property (e.g., total clay content). Reservoir properties, such as one or more of formation brittleness, porosity, organic material content, and permeability, can be determined by the method without need of detailed lab physical measurements or destruction of the sample. A system for evaluating a reservoir also is provided.

US Patent:

20150025863, Jan 22, 2015

Filed:

Jul 18, 2014

Appl. No.:

14/335817

Inventors:

- Houston TX, US
Elizabeth DIAZ - Houston TX, US
Sonia JAM - Houston TX, US
Bryan GUZMAN - Houston TX, US

Assignee:

Ingrain, Inc. - Houston TX

International Classification:

G01V 99/00

US Classification:

703 2

Abstract:

Methods and systems for cuttings-based well logging, including a method that includes converting measurements of cuttings samples from one or more depth intervals of a wellbore to a concentration percent of one or more elements, determining a one or more minerals of the cuttings samples from the concentration percent and building a mineralogy model for the cuttings sample based at least in part on a gravimetric conversion of the concentration percent of at least some of the one or more elements to a concentration percent of the one or more minerals. The method further includes normalizing the concentration percent of the one or more minerals, computing a photo-electric absorption factor (PEF) of the cuttings samples for each of the one or more depth intervals, and presenting to a user a log of the computed PEF as a function of wellbore depth.