Ground water flow modeling.Input data preparation.
D.Frank-Kamenetsky (Committee)I.Bogotyrev (Mineral)
G.Savenkova (Mineral)M.Naumovets (Mineral)
G.Bogdanova (expert)
Location of the pilot modeling areas
Shuvalovo
Main tasks:• Modeling of the oil pollution migration.• Modeling of oil pollution of the inter moraine
aquifer.• Assessment of the pollution migration to
surface water objects.
“Shuvalovo” polygon
“Polustrovo” polygon
• Protection of the ground water deposits against
pollutants migration from upper aquifers. • Modeling of flooding caused by ground water.• Estimation of chemical changes caused by negative load
to ground water.• Development of the recommendations to reduce
negative impact to ground water in Polustrove area.
Required input data
• information on all boreholes and wells used for different purposes: water-intake boreholes; private boreholes, monitoring, stratigraphic wells, etc;
• static and piezometric levels;• groundwater table;• aquifer thickness;• climatic parameters: intensity of atmospheric precipitation ,
temperatures, etc;• hydrological data on rivers: level, runway, morphometric
characteristics, flow-rate, etc.;• geometry of the system: data on the roof and subface of lithological
strata;• tested filtration parameters (filtration coefficient, transmissibility,
porosity, etc.);• chemical composition of groundwater.
Input data preparation schedule
• General (regional) information – July 2007• Detailed data – November 2007
Definition of borders for the pilot areas.
“Shuvalovo” polygon
“Polustrovo” polygon
“Polustrovo” polygon
General geological and hydrogeological information
Regional mapGeneral information:•Relief of crystalline basement•Lithology and relief of pre-Quaternary deposits•Lithology of Quaternary deposits•Daylight relief•Hydrology
Hydrogeological information:•Uppermost (the first from surface) layer of Quaternary deposits with hydrogeological classification•Next to the uppermost (the second from surface) layer with hydrogeological classification
Regional sections
N Cross-section description File name
1 Longitudial geological cross-section of pre-Quaternary geology N 2-2
Geol_Nev_02.pdf
2 Longitudial hydrogeological cross–section N 4-4 HGeol_MM_04.pdf
3 Transverse hydrogeological cross–section N 8-8 HGeol_Nev_08.pdf
4 Transverse hydrogeological cross–section N 11-11 HGeol_Nev_11.pdf
Preliminary information on “Shuvalovo” polygon
Layer No Layer name Layer content Attribut
e NoAttribute name Attribute content
1 Bore_holes.shp Bore holes and wells available on the pilot area at the moment
1.1 ID Unique code
1.2 No Number of bore hole
2 Catchments.shp Catchment areas of some local water bodies
2.1 ID Unique code
2.2 Name Catchment name
2.3 Order Catchment order
3 Cross_sections.shp
Lines of geological cross-sections
3.1 ID Unique code
3.2 Name Name of cross-section
4 Water_levels.shp Water levels on surface water bodies
4.1 Level Meters above sea level
N Cross-section description File name
1 Geological cross-section 2 LIGO1_02.pdf
2 Geological cross-section 5 LIGO1_05.pdf
10 borehole columns.
Detailed geological data
Geological map for the “Shuvalovo” polygon scale1:10000
Hydrogeological sections and wells
4
1
Hydrogeological sections
1-1
4-4
Wells database
The database contains information on 331 wells. 1. Information source2. General information (number, head-well level, depth, water table level,
etc) 3. Geology (lithological descriptions)4. Well construction (if exists)5. 20 chemical analyzes (heavy metals, oil products, etc)6. Filtration parameters for different rock types.
Drill hole database
Ground water chemical composition
Drill well №5019
The same data set for “Polystrovo” polygon is under preparation