Presentation of Areas
"RTW"
LLC is an operating enterprise that owns two licenses:
- Yuzhno-Yevgenievskaya area (exploration
followed by production);
- Chabanovskaya area (exploration followed by
production).
Areas belong to Dnepro-Donets basin (DDB) in gas-bearing zone of
Lugansk region
Licenses are issued in 2011 for a period of 20 years.
Areas are located at the territory of Ukraine in 50 km from
delimitation line of anti-terrorist operation.
Yuzhno-Yevgenievskaya
Area
Administratively area (45,2 km) is located in Kremenskoy district of
Lugansk region in 4 km to the north-east of the town Kremennaya
(Fig.1). Tectonically Yuzhno-Yevgenievskaya area is assigned to the
structure zone of southern slope of Voronezh anteclise with Donets
wrinkled structure. Characteristic feature of tectonic structure of the
region is step-like plunging of the surface of crystal base to the axis
of Dnepro-donets basin. Presence of latitude tectonic deformations and
feathering branches restrict east-west trending and prevent Paleozoic
deposits.
(Fig.1) Administrative location
of Yuzhno-Yevgenievskaya area
Geological structure of the area includes deposits of crystal base,
lower carboniferous (visean and serpukhovian), middle carboniferous
(Bashkir and moscovian) and meso-cenozoic deposits. The thickness of
sedimentary sheath is 3500 m. Sedimentary sheath traces inheritance of
fault tectonics of basement with gradual attenuation of distortions in
the younger stratigraphic levels. In meso-cenozoic deposits such
faulting is not captured. Regionally the area is a monoclinic block
within the bounds of which several small upheavals are distinguished.
In south-west a dome-shaped structure is distinguished (Fig.2). In
central and eastern parts milestone structure composed of several
upheavals dominates(Fig.3,4).
(Fig.2)Dome-shaped structure in
south-west of Yuzhno-Yevgenievskaya area
(Fig.3)Map of reflection horizon
(Fig.4) Geological
cross-section
In regard of oil and gas bearing the area is located within North
Donbass petroliferous region between Yevgenievskoye and
Krasnopopovskoye fields wherein producing complexes are the production
zones of visean, serpukhov, bashkir and moscovian stages of lower and
middle carbonic period (Fig. 5). At Krasnopopovskoye field during joint
С-18 – 22 horizon testing (in well #103) a commercial inflow
at a rate of 20 thousand cubic meters per day was received. In well
#100 at the horizon С -17 there was received a commercial gas inflow at
a rate of 86,6 thousand cubic meters per day through 100 mm choke. At
the nearby Yevgenievskoye field in well #4 at the horizon С-8-9 the gas
inflow was at a rate of 162,6 thousand cubic meters per day through 8
mm choke. In this same well 5 horizons in the interval between B-9 and
B-13 are rated as productive and gas-saturated. In the well #9 of B-9
horizon the gas flow was 493 thousand cubic meters per day through 6 mm
choke.

(Fig.5) Location plan of
Yuzhno-Yevgenievskaya structure of Krasnopopovskoye and Yevgenievskoye
fields
Sandstone porosity where there was an inflow according to the well
logging data is 16-20%. In well #2 at the same horizon commercial
inflow of gas with condensate is 92,5 thousand cubic meters per day
where condensate is 0,9 cubic meters per day. At this same field there
are producing horizons М-6 and М-7 where in wells #1,2,7,9,20,24,25
positive geophysical signatures are shown and in wells #1 and 7
commercial inflow of 12 and 88 thousand cubic meters per day
respectively is received. Thus, similar to adjoining Yevgenievskoye and
Krasnopopovskoye fields at Yuzhno-Yevgenievskaya area presence of gas
is expected at horizons М-6, М-7, B-4, B-9, B-10, С-8-9, С-17 и С-22.
General geological resources are measured by visean stage to the extent
of 0,8 billion cubic meters by category D1lok.
Chabanovskaya
Area
Chabanovskaya area (16,1 km2) is located in Novoaydarskiy district of
Lugansk region in 60 km to the north-west of Lugansk. Tectonically the
area is assigned to the southern slope of Voronezh shield and lies
within Starobelsko Millerovskaya homocline with a wide range of
prospect areas according to seismic survey i.e. Novoahtyrskaya,
Orekhovskaya, Krasnoozerskaya, Baravskaya and Kapitanovskaya areas. The
size of the area is favorable for geological exploration works (Fig.1)
(Fig.1) Geological
cross-section of Chabanovskaya area
According to estimates on the eroded surface of crystalline core-area
there lies tournaisian calciferous formation 36-40 m thick. Potentially
productive visean deposits have thickness from 200 to 300 m and overlie
tournaisian deposits, such formations are presented by layers of
sandstone and siltstone enriched by organic matter, dark gray limestone
with fragments of fauna, carbonatized argillite and microgranular
quartz sand with admixed siltstone (Fig.2,3).
(Fig.2)
Geological cross-section of Chabanovskaya area
(Fig.3) Structural map of
Chabanovskaya area
Depth of visean formations is 2,3 km, according to the specific nature
of sedimentary rock content, grade of catagenetic transformations of
organic matter and conditions for generation of hydrocarbons this area
is a perspective target for gas exploration followed by pilot
development. Seismic survey is complete for this area that proved the
presence of two dome-shaped structures. Area is prospect for further
exploration works. Gas bearing capacity was proved by drilling L-5214
coal well and test well #1 “Chabanovskaya”. When
testing the latest at the depth of 1698-1707 m through Ǿ 6,2 mm choke
there was gas inflow at a rate of 60 thous. m3 per day. The well was
abandoned after an accident. 3D seismic survey at Chabanovskaya area
distinguished two dome-shaped structures and proved estimation of
perspective resources at 2370 million cubic meters of gas and 82
thousand tons of oil.
Drilling of 2400 m well is scheduled at the fieldfor the purpose of
exploration of hydrocarbon deposits in coal
formations, further activities depend on drilling results of the first
exploration well.