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Basic results and tasks of exploratory work at the Samgorskiy area of the Georgian SSR

Journal Article:

Abstract

In 1974 in well 7 at the Samgorskiy field, an influx of oil was obtained from the middle Eocene deposits. As a result of exploratory and operational drilling, it was established that oil in the deposit is confined to volcanic and volcanogenic-sedimentary formations of the middle Eocene age. It was revealed by wells at depth 2250-3050 m. The upper part of the section is represented by limestones, marls, peat-origin sandstones, aleurolites, etc. Secondary cavities are noted which are opened and filled with mineral substance or bitumen of the crack. The porosity of the middle Eocene rocks changes from 0.4 to 13.8%, gas permeability from 0.001 to 0.41 mdarcy. Permeability of the working intervals equals 0.26-160 mdarcy. The output of the well reaches 500 T/day. These samplings are guaranteed by filtering mainly in the open microfractures. Currently 32 wells are in operation which are operating with anhydrous oil. In the wells not all the revealed interval of middle Eocene deposits is operating, but 14-57%. Information has been obtained on the type of rocks, their collector properties, hydrodynamics of the formation, etc. However because of the preparation of the oil formation for calculation of the reserves, the shortage of information makes it  More>>
Publication Date:
Jan 01, 1979
Product Type:
Journal Article
Reference Number:
EDB-83-039486
Resource Relation:
Journal Name: Neftegazov. Geol. Geofiz.; (USSR); Journal Volume: 8
Subject:
02 PETROLEUM; OIL FIELDS; PRODUCTIVITY; PETROLEUM DEPOSITS; EXPLORATION; OIL WELLS; ROCKS; TERTIARY PERIOD; USSR; WELL DRILLING; ASIA; CENOZOIC ERA; DRILLING; EASTERN EUROPE; EUROPE; GEOLOGIC AGES; GEOLOGIC DEPOSITS; MINERAL RESOURCES; RESOURCES; WELLS; 020200* - Petroleum- Reserves, Geology, & Exploration; 020300 - Petroleum- Drilling & Production
OSTI ID:
6563203
Country of Origin:
USSR
Language:
Russian
Other Identifying Numbers:
Journal ID: CODEN: NEGGA
Submitting Site:
HEDB
Size:
Pages: 15-17
Announcement Date:

Journal Article:

Citation Formats

Konavalov, V I, Gordiyenko, Yu I, Serkin, V G, and Yalovenko, V I. Basic results and tasks of exploratory work at the Samgorskiy area of the Georgian SSR. USSR: N. p., 1979. Web.
Konavalov, V I, Gordiyenko, Yu I, Serkin, V G, & Yalovenko, V I. Basic results and tasks of exploratory work at the Samgorskiy area of the Georgian SSR. USSR.
Konavalov, V I, Gordiyenko, Yu I, Serkin, V G, and Yalovenko, V I. 1979. "Basic results and tasks of exploratory work at the Samgorskiy area of the Georgian SSR." USSR.
@misc{etde_6563203,
title = {Basic results and tasks of exploratory work at the Samgorskiy area of the Georgian SSR}
author = {Konavalov, V I, Gordiyenko, Yu I, Serkin, V G, and Yalovenko, V I}
abstractNote = {In 1974 in well 7 at the Samgorskiy field, an influx of oil was obtained from the middle Eocene deposits. As a result of exploratory and operational drilling, it was established that oil in the deposit is confined to volcanic and volcanogenic-sedimentary formations of the middle Eocene age. It was revealed by wells at depth 2250-3050 m. The upper part of the section is represented by limestones, marls, peat-origin sandstones, aleurolites, etc. Secondary cavities are noted which are opened and filled with mineral substance or bitumen of the crack. The porosity of the middle Eocene rocks changes from 0.4 to 13.8%, gas permeability from 0.001 to 0.41 mdarcy. Permeability of the working intervals equals 0.26-160 mdarcy. The output of the well reaches 500 T/day. These samplings are guaranteed by filtering mainly in the open microfractures. Currently 32 wells are in operation which are operating with anhydrous oil. In the wells not all the revealed interval of middle Eocene deposits is operating, but 14-57%. Information has been obtained on the type of rocks, their collector properties, hydrodynamics of the formation, etc. However because of the preparation of the oil formation for calculation of the reserves, the shortage of information makes it difficult to have a qualitative fulfillment of this work. A sufficient number of core samples and the use of methods of neutron-neutron, density and acoustic logging are necessary. In calculating the reserves of hydrocarbon, in addition to the volumetric method, it is desirable to use the method of material balance. Additional information can be obtained with the use of a drilling core lifter. It is necessary in uniformly arranged wells to perform by-interval testing of objects with the use of cemented liners.}
journal = {Neftegazov. Geol. Geofiz.; (USSR)}
volume = {8}
journal type = {AC}
place = {USSR}
year = {1979}
month = {Jan}
}