DEPROIL LTD - Scientific and Technic Company

86% OUT OF 174 WELL TESTS
PERFORMED IN 84 NEW WELLS
HAVE CONFIRMED THE
DISCOVERY OF OIL & GAS IN
COMMERCIAL HYDROCARBON
POOLS MAPPED BASING ON THE
3D JOINT GRAVITY, WELL-LOG AND
SEISMIC DATA INVERSION!

Scientific and Technical Company DEPROIL LTDprovides geophysical services for E&P activities and monitoring of underground gas storages. The company successfully collaborates with Ukrainian and international oil and gas operators since 2000.

DEPROIL introduced the definition of "Commercial hydrocarbon pool" and developed a new Paradigm and Technology for mapping the pools of any morphology, origin, and depth. The unique mathematical theory of the joint inverse gravity-seismic & well-log data problem solution enables creation of the unique, stable, geologically meaningful 3D models of actual rock density.

The joint inverse problem solution integrates complete Bouguer gravity anomaly, well-logs, and seismic information, petrophysical, and production data.

The Technology of "Commercial hydrocarbon pool" identification is based on the use of the in-house software GCIS (Geophysical Complex Interpretation System - 2000), used to build 3D structural and inhomogeneous property 3D voxel models of subsurface, geophysical fields, and inverse gravity problem solution in conjunction with seismic and well log data.

To date, DEPROIL has completed over 90 industrial projects of regional and local studies having resulted new regional hydrocarbon concentration areas and the local commercial hydrocarbon pools, identified during hydrocarbon exploration, production and monitoring at the area over 700 thousand square kilometers.

During the 22 years of commercial pool mapping, 84 new wells were drilled on the 27 licenses for 12 oil companies. 127 well tests were carried out in these wells showing 86% of geological probability of success (PoS) in identifying the outline and shape of the multi-layered commercial hydrocarbon pools and estimating their properties: porosity, saturation, recoverable reserves, and initial production rate.

Implementation of the Technology allowed for an increase in well profitability from 43% to 118%, and a 20% increase in the number of commercial wells under the same drilling budget.

More than two decades of applying the new paradigm has made it possible to discover numerous commercial hydrocarbom pools and six new oil & gas fields: Chkaliv, named after Academic Shpak, Runovschina, Skydanivka, Zhemchuzhne, and Sadzhava, and the new Senonian gas pool on the Medvezhe gas field in the Western Siberia.

Basin study

License area

Drilled well

Between 2016 and 2020 DEPROIL with 86% PoS mapped 195 billion cubic meters of gas and 18.4 thou. tons of oil on Ukraine's onshore, and 2.1 TCM of gas in the deep-water Black Sea offshore.

GEOLOGICAL SOLUTIONS:

REGIONAL - mapping sedimentary basins and in basin areas of the concentration of commercial hydrocarbon pools for future licensing and exploration	APPRAISAL - mapping hydrocarbon reservoir distribution and new (outpost/deeper/shallower) commercial hydrocarbon pools for optimization of the field's development
EXPLORATION - identification of commercial hydrocarbon pools, defining position of new wells, estimation of recoverable reserves and initial production rate within the licenses	PRODUCTION - mapping changes in gas saturation and pressure within commercial hydrocarbon pools, dynamic gas pools, active and cushion gas volume distribution, and gas moving pathways in the underground storage

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Craters brimming with hydrocarbons?
by Rhonda Duey, Executive Editor of www.hartenergy.com

https://www.hartenergy.com/exclusives/craters-brimming-hydrocarbons-19582

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