... with increasing burial depth and temperature in Gulf Coast sediments. However, our examination of clay minerals in the organic-rich shale of the Upper Devonian Duvernay Formation in the Western Canada Sedimentary Basin reveals patterns of clay diagenesis that are inconsistent with Gulf of Mexico models. Our study...

... Understanding and modeling the effect of gas adsorption on elastic responses of organic-rich shale is of critical importance for total gas-in-place estimation, pore pressure prediction and sweet spot identification of unconventional plays. Under the framework of poroelasticity considering...

... meeting seg international exposition maturation modeling maturation draupne formation geomechanical parameter hydrocarbon vitrinite reflectance upstream oil & gas well logging reservoir characterization organic-rich shale shale References References Passey , Q. , S. , Creaney...

... ABSTRACT We demonstrate a workflow of rock physics modeling for organic-rich shales at various levels of thermal maturity based on hydrous pyrolysis experimental data. The anisotropic DEM algorithm in conjunction with Easy %Ro is used to predict the elastic stiffness evolution of the source...

... characterization organic-rich shale prediction shale reservoir quality variation rock physics model delaware basin upstream oil & gas annual meeting lateral variation wolfcamp formation sayer carbonate anisotropy seg seg international exposition References References Aderibigbe...

.... In unconventional shale plays, the shale acts as the source, reservoir, and seal. Organic-rich shales represent an enormous energy resource, but production from wells in such plays shows considerable lateral variation. Reliable predrill methods to determine the spatial variation in reservoir quality and completion...

... elastic response. These two applications were tested on a dataset from an organic-rich shale for sonic log estimation and for the interpretation of seismic AVO inversion data. Introduction Modeling the elastic properties of organic-rich shales is a necessary step in unconventional reservoir...

... logging machine learning organic-rich shale gamma ray stratigraphy complex reservoir seg denver 2014 classification lithology lower interval sandstone log analysis expectation maximization facies upper interval appalachian basin reservoir characterization algorithm artificial...

... shale organic-rich shale source rock analysis seg denver 2014 organic matter lag field upstream oil & gas shale unit log analysis source rock hydrocarbon well log data maturity well logging agbada shale reservoir characterization niger delta basin sonic log Source rock analysis...

... previously which are usually ignored. Aimed at multiple pore types developed in Jiannan area, this paper proposes a dual rock physics model with complicated pore types for organic-rich shale. Pore space is divided into two parts – matrix porosity and kerogen porosity. Kerogen pore space is full filled...

... Summary In this study, we develop rock physics models to simulate the elastic properties of organic-rich shales with different maturity levels. The modeling results of immature and mature shales match well with the measured data from the Bakken shale samples (Vernik and Liu, 1997). It also...

... Summary The main purpose of this study is to establish relationships between rock physics variables, e.g., the Thomsen anisotropy parameters, and the microstructure of organic-rich shales as a function of thermal maturity. Relationships between P- and S-wave anisotropy under stress...

...-aspect-ratio organics. Solid organic materials are usually more compliant than other minerals present in shales, and their shapes and distribution are usually anisotropic. This makes organic materials a strong source of anisotropy in organic-rich shales. The sensitivity of sonic measurements in the Eagle...

... Summary Organic-rich shales are often strongly anisotropic as a result of the partial alignment of anisotropic clay minerals, and the bedding-parallel lamination of organic material within the shale. Neglecting shale anisotropy may lead to incorrect estimates of rock and fluid properties...

... Summary Development of a shale gas rock physics model is extremely difficult because organic-rich shales are often observed to be strongly anisotropic due to the partial alignment of clay minerals and the bedding-parallel lamination of organic material within the shale, and the solid phase...

... Summary Geophysical characterization of organic-rich shales involves remote estimation of the geological and geomechanical properties. Important geological properties are porosity, clay content (Vclay), and the total organic carbon (TOC). Important geomechanical properties are natural...

... increased with maturity. The understanding of the controls on anisotropy and stiffness of the soft components (kerogens and clays) of organic-rich shales is important in developing methods for indirect and in-situ detection of maturity. Introduction Present day detection of maturity in organic-rich...

... Summary Relating seismic wave velocity and maturity in organic-rich shale is still a fundamental issue in the study of organicrich rocks. We found that the inception of the maturity peak -expressed in terms of vitrinite reflectance- (Ro % = 0.65) separates the pressure-dependent anisotropic...