Litho-facial models of Pirallahi field’s oil deposits on geophysical well logging data
Journal Title: Геофизический журнал - Year 2017, Vol 39, Issue 2
Abstract
Performed work aims to recreate the formation conditions of the basic lithotypes of geological section and construction of petrophysical models of medium on several horizons of Productive series on the basis of processing and interpretation of geophysical well logging data. By separating the geological section into lithofacies intervals, the data of geophysical investigations of more than 470 wells, including such well log data as apparent resistivity and spontaneous polarization has been used. The definition of electrometric models produced by the αsp curve values, i. e., ratio of SP curve to its maximum, which made it possible to reconstruct the paleogeographic setting and restore the genesis of sediments. It was determined that river channels have very good reservoir properties. During formation of the lower division of Productive series two transgressive stages have been distinguished in the research area. The main variation regularities of petrophysical parameters of the medium have been revealed in three-dimensional space, consideration of which will allow us to create more effective models for further exploitation of Pirallahi field.
Authors and Affiliations
L. F. Shikhova
Keywords
Related Articles
- EP ID EP198081
- DOI 10.24028/gzh.0203-3100.v39i2.2017.97379
- Views 73
- Downloads 0
Characteristic time of thermal and diffusional relaxation
It is shown that frequently used dimensional estimation of a layer thermal relaxation time, tr, as L2/κ based on the layer thickness, L, and thermal diffusivity, κ, strongly overestimates tr. The correct estimate tr=L2/π...
In memory of the outstanding scientist-ore-finder Sergey Valentinovich Nechaev (03.03.1932-04.08.2018)
In memory of the outstanding scientist-ore-finder Sergey Valentinovich Nechaev (03.03.1932-04.08.2018)
S. I. Subbotin Institute of geophysics of NAS of Ukraine on the occasion of centenaries of the Academy and its President Boris Yevgeniyevich Paton
The essential results of the Institute’s activity during five latest years, i. e., after 2013 have been briefly presented. The following categories have been outlined: studies of the magnetic field of the Earth and appli...
Hard-to-recover reserves of Yugra oil (West Siberia)
In 2017, the Yugra’s share of the all-Russian production was 43.0 %, it’s 235.3 million tons in absolute units. This is 3.9 million tons less than in 2016 and 43.1 million less than in 2007. The Neocom shelf sandstones a...
Periodization and specific features of deep processes in Precambrian by example of the Ukrainian shield
Thorough information on geological structure of the Ukrainian shield (USh) allows to verify opinions existing nowadays that plume and plate tectonic activities are possible only after conclusive formation of sublithosphe...