The paper applies fractal theory to the structure of coal pores and calculates dimension integrated for each pore section >100 nm, 100 nm > d 5.25 <2 nm. In experiment, we performed full stress–strain-seepage experiment methane-bearing coal, revealed deformation–seepage characteristics under load, deduced dynamic prediction mechanical model permeability based on heterogeneity, followed...

Petro physics, rock physics and multi-attribute analysis have been employed in an integrated approach to delineate porosity variation across Tamag Field of Niger Delta Basin. Gamma and resistivity logs were employed to identify sand bodies and correlated across the field. Petro physical analysis was undertaken. Rock physics modelling and multi-attribute analysis were carried out. Two hydrocarbo...

Carbonate reservoirs are usually difficult to map and identify in seismic sections due their complex structure diagenetic material with high heterogeneity. The East Java Basin is a perfect example of these carbonate structures excellent hydrocarbon accumulation. In order obtain better characterization the reservoir this basin, acoustic impedance inversion performed here. Acoustic product P wave...

The flow field is the fluid dynamic path in strongly heterogeneous reservoirs, and its evolution significantly affects distribution of remaining oil, showing a disordered highly dispersed mode caused by long-time water injection. By combining traditional flow-field evaluation with diagnostics, this paper proposes methodology to quantitatively characterize adjust real time during late stage wate...

Abstract Horizontal well is an important way to develop thin reservoir with edge-bottom water aquifer. For the horizontal near oil–water contact, have features of edge and bottom at same time. The productivity formula in pure or not fully applicable this type reservoir. heterogeneous composite aquifer, divided into multiple sections by using concept multi-segment well. Based on seepage mechanic...

intestinal stem cells (iscs) are a group of rare cells located in the intestinal crypts which are responsible for the maintenance of the intestinal homeostasis and intestinal regeneration following injury or inflammation. lineage tracing experiments in mice have proven that iscs can repopulate the entire intestinal crypt. it is noteworthy that in such experiments, only a subset of intestinal cr...

Several countries, including Canada, contain sizeable bitumen resources in highly fractured carbonate rocks. Any possible recovery of bitumen from these reservoirs will be highly dependent on proper understanding of the rock and fluid properties and how they vary in the reservoir. These carbonates are extremely heterogeneous, and as a result proper reservoir characterization is challenging. In ...

This paper was selected for presentation by an SPE Program Committee following review of information contained in a proposal submitted by the author(s). Contents of the paper, as presented, have not been reviewed by the Society of Petroleum Engineers and are subject to correction by the author(s). The material, as presented, does not necessarily reflect any position of the Society of Petroleum ...

reservoir models are initially generated from estimates of specific rock properties and maps of reservoir heterogeneity. many types of information are used in reservoir model construction. one of the most important sources of information comes from wells, including well logs and core samples. unfortunately well log and core data are local measurements that may not reflect the reservoir behavior...

Abstract Water Alternating Gas (WAG) is a cyclical process that involves alternating water and gas injections with the primary goal to improve sweep efficiency by maintaining initial high pressure, slowing breakthrough, lowering oil viscosity. The objective of this work apply optimize WAG strategy on carbonate field light oil, compare it initially planned water-flooding strategy, investigate ca...