Mineral prospecting technologies

Technology

С помощью дистанционной аппаратуры до начала бурения:

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измеряем глубины залегания любых типов полезных ископаемых, пористость и породы в них

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идентифицируем типы углеводородов и характеристики пород‑коллекторов

При этом обеспечиваем эффективный выбор точек под бурение результативных разведочных скважин на глубинах до 6 км.

Достоинства технологии:

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исключает негативное воздействие на окружающую среду

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не требует специальных согласований

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позволяет проводить работы независимо от сезона, без ограничений по площади и рельефу, как на суше, так и на море.

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гарантирует отсутствие пустых скважин.

Мы указываем на наличие полезных ископаемых с точностью до 98% на глубинах до 6 км.

New measurement standard in geological exploration

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Technology allows to determine reliably boundaries of deposits of any minerals, depths of occurrences, the thickness of productive horizons and the network of tectonic faults.

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It provides efficient selection of points for drilling exploration and production wells at depths of up to 6 km.

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Guarantees the absence of empty wells

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Eliminates negative impact on the environment.

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Doesn’t require special approvals.

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Conducts operations regardless of the season, without restrictions on area and relief, on shore and offshore.

Video

Prospecting methods

The mineral prospecting technology is based on combination of remote geospace and field geophysical methods:

Remote method

Visualization of boundaries of various types of deposits in large survey areas by reading the characteristic information and energy spectrum of fossil substances from satellite and aerial photographs after their processing in radiation fields at a research nuclear reactor.

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Field method

Detailed field survey of prospective areas, identified at the first stage, using NMR geotomograph and point electromagnetic exploration units which allow to register unique for each type of mineral the resonant electromagnetic fields on theearth's surface.

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Distinctive technology indicators

"We determine type and profile of deposits, but not geophysical signs"

1. Promptness - determining anomaly boundaries in large areas and conducting detailed surveys within the boundaries of each anomaly using field geophysical equipment in the shortest possible time.

2. Versatility - simultaneous prospecting of several minerals in a dedicated area (oil, gas, gascondensate, gold-bearing and uranium ores, diamonds, ores of various polymetals, as well as underground thermal and drinking waters).

3. Efficiency - reliability of detection, delineation and determination of deposit horizons depths before drilling for oil, gas, gas condensate is 95–98%, for polymetallic oresis 80–85%, for water is over 90%.

4. Eco-friendly – the method is completely safe for people and nature.

5. Selectivity – identifying structures containing only required minerals by a direct method (hydrocarbon lenses, ore bodies, accumulation of groundwater), and not identifying all geological structures according to different geophysical signs (seismic exploration, electrical exploration, magnetic exploration, etc.). It eliminates the significant financial costs of drilling empty wells or drilling and lifting cores with the low concentration of valuable metals in ore bodies.

6. Informativeness - determining quantitative indicators of minerals (predicted resources,thickness of oil-saturated and water-saturated rocks and their porosity, concentration of valuable metal in ore, gas pressure, temperature, fluid migration pathway). Constructing depth sections and deposit profiles (ore body) according to measurement points of occurrence depths, selected on lines of geological profiles.

7. Remote operation - identifying deposit types and preliminary delineating them on space photographs, which ensures the scale of prospecting by covering large areas in a short time.

Working stages

Remote Stage:

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Obtaining detailed analog satellite photographs of a survey area.

Surveying samples of fossil and enclosing rocks (reservoir rocks), selecting reference atoms of elements included into their composition and recording from them information-energy spectrum and NMR spectrum, transferring them to "work" and "test" matrices using stationary equipment.

Analog aerospace image processing using an innovative radiation-chemicalmethod and registering onimages areas with characteristic information energy frequency spectrum above anomalies of a specific mineral type (by "zones of increased brightness").

Visualizing and delineating "zones of increased brightness" on a processed satellite image and transferring boundaries to a coordinate grid map of an area using a video camera and GIS application (by a method of information overlay).

Selecting perspective anomalies for detailed examination by field equipment.

Exposure of photographs under the action of a rotational magnetic field and a microwave generator, the frequency is modulated by the corresponding frequency of information-energy spectrum of the identified substance. The luminescence of the entire photograph is terminated after a certain time and then only areas where specific substances are located continue to glow.

Selecting perspective anomalies for detailed examination by field equipment.

Visualizing a network of tectonic faults in a surveyed area based on interpretation of geospatial photographs in the IR frequency range.

Data reliability - 60÷65% based on the results of the first stage.

Field Stage:

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Clarifying boundaries of effective areas of anomalies (lenses, ore bodies, underground water accumulations) using an NMR geotomograph with continuous movement of vehicles (continuous sounding) and continuously measuring electromagnetic field with resonant excitation of a substance of aspecific mineral (the absence of a measuring signal means going beyond the anomaly boundary).

Measuring depths of minerals at coordinate points selected on geological profiles with the required thickening step using devices for point electromagnetic exploration and resonance test NMR.

The reliability of the received and processed measurement results with field equipment is 90÷98%.

Identifying reservoir rocks (ore bodies) and determining porosity and capacity (thickness) of reservoir rocks (oil-, gas- or water-saturated rocks) at measurement points by recording NMR spectra of metal atoms in the composition of minerals or ore bodies using high-frequency measuring equipment.

Determining paths and direction of fluid flow migration based on the difference in amplitudes of an electromagnetic field, measured in 3 planes above the fluid flow.

Determining the hydrocarbon temperature (water) in the reservoir, aswell as the gas pressures in the gas reservoir or the gas cap of the oil reservoir.

Evaluation Stage:

Processing and analyzing received data.

Determining useful capacities (thickness) of hydrocarbon and water reservoirs (ore bodies).

Decrypting spectrograms of an electromagnetic field at measurement points and constructing depth profiles of anomalies and depth columns in each hydrocarbon reservoir depth intervals.

Calculating volumes of predicted mineral resources in the identified anomalies (lenses, ore bodies).

Selecting points for drilling wells for guaranteed deposit opening (with industrial flows of oil and gas, with industrial contents of useful metal in ore deposits).

Application Geography

One of the main advantages of our technologyis versatility. It is used in areas with a complex geological rock structure, on any relief, in forests, onshore and offshore.

Any relief

- 15°С to +40°С.

operating temperature from

6000 m

maximum depth for hydrocarbons, salt and geothermal waters

До 100 %

maximum depth for ores, coal, diamonds and fresh water

Up to 98 %

permissible humidity

The seawater depth does not affect prospecting. It should be considered that search depths include water depth.

Detectable minerals

Any elements of the periodic table

In addition to platinum group elements: ruthenium, rhodium, palladium, osmium, iridium and platinum

Fossil Fuels:

oil

gas

gas condensate

coal

Mining Resource (ore):

ferrous metals

non-ferrous metals

noble metals

uranium

diamonds

Underground water:

deep-lying fresh

mineralized and highly mineralized

geothermal fresh and highly mineralized

Basic parameters and measurement errors

The obtained parameters of the identified anomalies, lenses, ore bodies, deposits and minerals make it possible to decideon the feasibility of industrial development of a deposit before drilling deepwells.

Together with the Customer's Geological Service, we can make a geological and hydrodynamic model of a field.

Coordinates of field boundaries

Stationary complex – ±8-15 м
Mobile equipment – ± 2-3 м

Reservoir depth

0.4÷0.5% of depth up to 2000 m
0.3÷0.4% of depth from 2000 m up to 6000 m

Useful layer capacity (ore body)

>10÷15 м

Type of reservoir rocks

100%

Porosity of reservoir rocks

5÷10% with porosity up to 5%;
10÷15% with porosity greater than 5%

Formation temperature

±5÷10°С up to +150°С

Gas pressure

± 1-2 MPa up to 40 MPa

Fluid migration direction

100%

Concentration of metal in ore

>1 g/t

Water salinity

fresh – up to 1g/l;
low mineralized 1.0-1.5 g/l;
high mineralized 2>g/l

Presence of gas caps over oil horizons

100%

Presence of water-resistant rocks over or under fields

100%

Tectonic fault network

100%

Gold content

from 0.3 g/t of valuable component content

Concentration of uranium, polymetallic ores, rare earth elements

0,01 %

Limit (minimum) content of diamonds

0.02 carats per cube of rock mass

Lithium

from 1% oxide in ore

Limitations affecting data reliability

1. Limitations associated exclusively with the preliminary human intervention in geodynamics and geostructure of oil reservoirs (extraction from a well, water or gas injections into active wells, hydraulic fracturing, etc.), which distroy the original reservoir structure and its water cut.

It is extremely difficult to separate (identify) man-made deposits with mixed oil and water (partially depleted deposits) from real ones since even in completely depleted deposits there are oil residues that will be recorded as a “deposit”.

Thetechnology most reliably works with natural (initial) deposits, which were formed naturally under the influence of gravitational forces and migration fluid processes under the influence of excess gas pressures.

Limitations are associated with human intervention in geodynamics and geostructure of reservoirs.

Скрыть

2. Thetechnology does not allow to unambiguously (reliably) detect six elements of the platinum group: ruthenium, radium, palladium, osmium, iridium and platinum.

NMR spectrum of these elements do not have characteristic features that would be unambiguously detected and identified by equipment. Registration of a stable recognition signal is impossible; there areno methods for their registration.