Американский Научный Журнал FINDING OF EXTRA COLLECTOR LAYERS AS A WAY OF A RESOURCE INCREMENT (4-11)

Geological and technological research is one of the most optimal methods of getting additional information about gas and oilfields. This kind of research can also be used for determining the most effective solution when the results of the geophysical analysis of a well are impossible to be interpreted explicitly or for having some extra data about the cross section of a well. On the Tchepakovskoye oil basin(Russia, Stavroposkiy krai) such data were revealed in the clay of the Maikop series. The lower part of the cross section of the series is formed from the clays of the Hadum series which as also a collector. According to the results of the basin exploration strata rocks have the apex at the depth of 2305 m and the subface at the depth of 2350 m thus the thickness of the series is 45 m. Mud logging has detected significant differences with the project data in relation to oil and gas collector rocks which this article will run about. Nowadays geological research is the most precise remote method of determining lithologic boundaries which has no analogs. However the results of mud logging show the increasing of gas indications already at the point of 2112 m vertically and that is 200 m higher than the boundary of the top collector apex determined with the help of geophysical methods of a well research during the basin exploration. Thus it is possible to expect the presence of some extra collector rocks above the project boundaries of the top collector. To prove such a supposition it is necessary to analyze the graphical chart of the mud logging and use a method of a luminescent – bitumen analysis in order to determine authentic presence of oil hydrocarbons in the rock. Скачать в формате PDF
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НАУКИ О ЗЕМЛЕ И ПЛАНЕТЫ

FINDING OF EXTRA COL LECTOR LAYERS AS A W AY OF A RESOURCE INC REMENT

Komarov G. G.
Voronezh State University

The summary . Geological and technological research is one of the most optimal methods of getting
additional information about gas and oilfields. This kind of research can also be used for determining the most
effective solution when the results of the geophysical analysis of a well are impossible to be interpreted expli citly
or for having some extra data about the cross section of a well. On the Tchepakovskoye oil basin(Russia,
Stavroposkiy krai) such data were revealed in the clay of the Maikop series. The lower part of the cross section of
the series is formed from the clays of the Hadum series which as also a collector. According to the results of the
basin exploration strata rocks have the apex at the depth of 2305 m and the subface at the depth of 2350 m thus
the thickness of the series is 45 m. Mud logging has detec ted significant differences with the project data in relation
to oil and gas collector rocks which this article will run about.
Nowadays geological research is the most precise remote method of determining lithologic boundaries which
has no analogs. However the results of mud logging show the increasing of gas indications already at the point of
2112 m vertically and that is 200 m higher than the boundary of the top collector apex determined with the help
of geophysical methods of a well rese arch during the basin exploration. Thus it is possible to expect the presence
of some extra collector rocks above the project boundaries of the top collector.
To prove such a supposition it is necessary to analyze the graphical chart of the mud logging and use a method
of a luminescent – bitumen analysis in order to determine authentic presence of oil hydrocarbons in the rock.

The procedure of the research
The taking of samples was doing along the well
bore 207 s each 10 m in the inter val of 0 – 2530 m
including vertical points of 0 – 2350 m. Qualitative and
quantitative evaluation of oil -bitumen content in the
rocks was fulfilled using a luminoscope “Philin”
according to the intensity of the luminescence of
chloroform extracts in a 5 -point scale and a
nomographic chart (table 1 -2).
Table 1.
a luminescent - bitumen analysis. Qualitative evaluation.
Groupe A colour ot the luminescence of
capillary extracts composition of the bitumoid Type of the bitumoid
1 WB – white -blue hydrocarbon fluids which don't
contain resins and asphaltenes LB – a light bitumoid
2
W- white
BY – blue and yellow
WY – white and yellow
Oil and bitumoids that contain a
low amount of
resins and asphaltenes , a low
content or no content
OB – an oily bitumoid
3
Y- yellow
OY – orange and yellow
О - orange
YB – yellow and brown
Oil and bitumoids that contain
oils more than 60%, resins and
asphaltenes 1-2%
ORB – oily and resinous
bitumoids
4
ОB – orange and brown
LB – light brown
B – brown
Bitumoid and oil that contain a
big amount of resins and
asphaltenes 3-20%.
RB - resinous bitumoid
5
DB – dark brown
GB – green and brown
RB – red and brown
BG – black and green
B– black
Bitumoid that contains resins
and asphaltenes more than 20%.
RAB – resinous and
asphaltene biumoid

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Table 2.
Quantitative evaluation
The form of a
luminescenting spot
The characteristics of a
luminescenting spot Point



Dots 1

A thin and torn ring 2

A thin continuous ring 3

An uneven spot, a thick ring 4

An even spot 5

During the luminescent -bitumen analysis the
tables of qualitative evaluation of hydrocarbons were
produced (table 3 -4).
Table.3
The table of qualitative evaluation of hydrocarbons in the interval of 0 -1300 m.
fro
m till type poin
t
colou
r
fro
m till typ
e
poin
t
colou
r
fro
m till typ
e
poin
t
colou
r
0 10 LB 3 WB 430 44
0 LB 2 WB 870 880 LB 3 WB
10 20 LB 3 WB 440 45
0 LB 1 WB 880 890 LB 3 WB
20 32 LB 3 WB 450 46
0 LB 1 WB 890 900 LB 3 WB
32 40 LB 3 WB 460 47
0 LB 3 W 900 910 LB 3 WB
40 50 LB 2 WB 470 48
0 LB 3 W 910 920 LB 3 WB
50 58 LB 3 WB 480 49
0 OB 3 BY 920 930 LB 3 WB
58 70 LB 2 WB 490 50
0 LB 3 WB 930 940 LB 3 WB
70 80 LB 3 WB 500 51
0 LB 3 WB 940 950 LB 3 WB
80 90 LB 3 WB 510 52
0 LB 3 WB 950 960 LB 3 WB
90 10
0 LB 3 WB 520 53
0 LB 3 WB 960 970 LB 3 WB
100 11
0 LB 3 WB 530 54
0 LB 3 WB 970 980 LB 3 WB
110 12
0 LB 3 WB 540 55
0 LB 3 WB 980 990 LB 3 WB
120 13
0 LB 3 WB 550 56
0 LB 3 WB 990 100
0 LB 3 WB
130 14
0 LB 3 WB 560 57
0 LB 3 WB 100
0
101
0 LB 3 WB
140 15
0 LB 3 WB 570 58
0 LB 3 WB 101
0
102
0 LB 3 WB
150 16
0 LB 3 WB 580 59
0 LB 3 WB 102
0
103
0 LB 3 WB
160 17
0 LB 2 WB 590 60
0 LB 3 WB 103
0
104
0 LB 3 WB

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170 18
0 OB 3 BY 600 61
0 LB 3 WB 104
0
105
0 LB 3 WB
180 19
0 LB 3 WB 610 62
0 LB 3 WB 105
0
106
0 LB 3 WB
190 20
0 lB 3 WB 620 63
0 LB 3 BY 106
0
107
0 LB 3 WB
200 21
0
OR
B 3 ОY 630 64
0 OB 3 BY 107
0
108
0 LB 3 WB
210 22
0 OB 3 BY 640 65
0 OB 3 BY 108
0
109
0 LB 3 WB
220 23
0 LB 3 WB 650 66
0 OB 3 BY 109
0
110
0 LB 3 WB
230 24
0 LB 3 WB 660 67
0 OB 3 BY 110
0
111
0 LB 3 WB
240 25
0 LB 3 WB 670 68
3 OB 3 BY 111
0
112
0 LB 3 WB
250 26
0 LB 3 WB 683 69
0 LB 1 WB 112
0
113
0 LB 3 WB
260 27
0 LB 3 WB 690 70
0 LB 2 WB 113
0
114
0 LB 3 WB
270 28
0 LB 3 WB 700 71
0 LB 1 WB 114
0
115
0 LB 3 WB
280 29
0 LB 3 WB 710 72
0 LB 2 WB 115
0
116
0 LB 3 WB
290 30
0 LB 3 WB 720 73
0 LB 2 WB 116
0
117
0 LB 3 WB
300 31
0 LB 2 WB 730 74
0 LB 2 WB 117
0
118
0 LB 3 WB
310 32
0 LB 2 WB 740 75
0 LB 2 WB 118
0
119
0 LB 3 WB
320 33
0 LB 2 WB 750 76
0 LB 2 WB 119
0
120
0 LB 3 WB
330 34
0
OR
B 2 О 760 77
0 LB 2 WB 120
0
121
0 LB 3 WB
340 35
0 LB 3 WB 770 78
0 LB 2 WB 121
0
122
0 LB 3 WB
350 36
0 LB 2 WB 780 79
0 LB 2 WB 122
0
123
0 LB 2 WB
360 37
0
OR
B 2 ОY 790 80
6 LB 3 WB 123
0
124
0 LB 2 WB
370 38
0 LB 2 WB 806 82
0 LB 3 WB 124
0
125
0 LB 2 WB
380 39
0 LB 2 WB 820 83
0 LB 3 WB 125
0
126
0 LB 2 WB
390 40
0 LB 2 WB 830 84
0 ЛБ 4 WB 126
0
127
0 LB 2 WB
400 41
0 LB 2 WB 840 85
0 LB 5 WB 127
0
128
0 LB 3 WB
410 42
0 LB 2 WB 850 86
0 LB 6 WB 128
0
129
0 LB 3 WB
420 43
0 LB 2 WB 860 87
0 LB 3 WB 129
0
130
0 LB 3 WB

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Table 3
The table of qualitative evaluation of hydrocarbons in the interval of 1300 -2550 м
от до тип бал цвет от до тип бал Цвет от до тип бал цвет
1300 1310 LB 2 WB 1860 1870 OB 3 BY 2420 2430 ORB 4 YB
1310 1320 LB 2 WB 1870 1880 OB 3 BY 2430 2440 RB 4 B
1320 1330 LB 2 WB 1880 1890 ORB 3 ОY 2440 2450 RB 4 LB
1330 1340 OB 2 ОY 1890 1900 OB 3 BY 2450 2460 ORB 4 ОY
1340 1350 LB 3 WB 1900 1910 RB 3 B 2460 2470 ORB 4 ОY
1350 1360 LB 3 WB 1910 1920 OB 3 BY 2470 2480 RB 4 LB
1360 1370 LB 2 WB 1920 1930 LB 3 WB 2480 2490
ORB 4 О
1370 1380 LB 2 WB 1930 1940 OB 3 BY 2490 2500 ORB 5 YB
1380 1390 LB 2 WB 1940 1950 LB 3 WB 2500 2510 ORB 4 YB
1390 1400 LB 2 WB 1950 1960 OB 3 BY 2510 2520 OB 3 BY
1400 1410 LB 2 WB 1960 1970 RB 3 LB 2520 2530 OB 3 BY
1410 1420 LB 2 WB 1970 1980 OB 3 BY 2530 2540 OB 3 BY
1420 1430 LB 2 WB 1980 1990 OB 3 BY 2540 2550 OB 3 BY
1430 1440 LB 2 WB 1990 2000 OB 3 BY 2550 2560 LB 3 WB
1440 1450 LB 2 WB 2000 2010 OB 3 BY
1450 1460 LB 2 WB 2010 2020 OB 3 BY
1460 1470 LB 2 WB 2020 2030 OB 3 BY
1470 1480 LB 2 WB 2030 2040 OB 3 WY
1480 1490 LB 2 WB 2040 2050 OB 3 WY
1490 1500 LB 2 WB 2050 2060 OB 3 BY
1500 1510 LB 2 WB 2060 2070 OB 3 WY
1510 1520 LB 1 WB 2070 2080 OB 3 BY
1520 1530 LB 2 WB 2080 2090 OB 3 BY
1530 1540 LB 2 WB 2090 2100 LB 3 WB
1540 1550 LB 2 WB 2100 2110 RB 3 LB
1550 1560 LB 2 WB 2110 2120 OB 3 BY
1560 1570 LB 2 WB 2120 2130 LB 3 WB
1570 1580 LB 2 WB 2130 2140 OB 3 BY
1580 1590 LB 2 WB 2140 2150 OB 3 BY
1590 1600 LB 2 WB 2150 2160 OB 3 BY
1600 1610 LB 2 WB 2160 2170 OB 3 BY
1610 1620 LB 2 WB 2170 2180 RB 4 B
1620 1630 OB 2 WB 2180 2190 RB 4 LB
1630 1640 LB 2 WB 2190 2200 RB 4 B
1640 1650 LB 2 WB 2200 2210 OB 3 BY
1650 1660 LB 2 WB 2210 2220 OB 3 BY
1660 1670 LB 2 WB 2220 2230 OB 3 BY
1670 1680 LB 2 WB 2230 2240 OB 3 BY
1680 1690 LB 2 WB 2240 2250 ORB 4 YB
1690 1700 LB 2 WB 2250 2260 RB 4 LB
1700 1710 LB 2 WB 2260 2270 ORB 4 YB
1710 1720 LB 2 WB 2270 2280 ORB 4 YB
1720 1730 LB 2 WB 2280 2290 ORB 4 YB
1730 1740 LB 2 WB 2290 2300 ORB 4 ОY
1740 1750 LB 2 WB 2300 2310 ORB 4 ОY
1750 1760 LB 2 WB 2310 2320 ORB 4 ОY
1760 1770 LB 2 WB 2320 2330 RB 4 B
1770 1780 LB 2 WB 2330 2340 RB 4 B
1780 1790 LB 2 WB 2340 2350 ORB 4 ОY
1790 1800 LB 2 WB 2350 2360 OB 3 BY
1800 1810 LB 2 WB 2360 2370 OB 3 BY
1810 1820 LB 2 WB 2370 2380 ORB 3 ОY
1820 1830 LB 2 WB 2380 2390 OB 4 BY
1830 1840 LB 2 WB 2390 2400 RB 4 СК
1840 1850 LB 2 WB 2400 2410 ORB 4 ОY
1850 1860 LB 2 WB 2410 2420 ORB 4 ОY

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The data from the table show that there are
potentially productive hydrocarbons in the interval
1860 -1900, 2030 -2070, 2120 -2170, 2200 -2550 along
the well bore. Yellow colour highlights the analyses
where the pollution with the greasing of thread
connection was detected. The analyses with different
bitumoids are below.

Photo 1. Interval 90 -100 a light bitumoid

Photo 2. Interval 1890 -1900 an oily bitumoid.

Photo 3. Interval 2240 -2250 an oily and resinous bitumoid

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Photo 4. Interval 2390 -2400 a resinous bitumoid
(the light zone is a distortion caused by the contact with fat pollution)

Photo 5. Interval 2190 -2200. The analysis polluted with the greasing of the thread conne ction.

After the data processing of the results of the mud
logging a graphic chart of the explored well 207 was
fulfilled (Picture 6).

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Picture 6. The graphic chart of the mud logging: total gas and methane.

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The analysis of the graphic chart shows that in the
intervals 1800 -1940 and 1990 -2122 along the well bore
there is little increasing of hydrocarbons concentration
which is higher than background indicators. After that
in the interval of 2180 -2585 along the well bore
significant peaks of gas indications can be noticed
mostly from 3 to 6 % of total gas, maximum 7,93%,
what is important. Thus, taking into account the results
of the mud logging and the luminescent -bitumen
analysis it is possible to say that above the project
collector determined during the basin exploration using
geophysical methods there are extra collector rocks
whose core should be selected and researched and the
results of the resear ch should be correlated with the data
of geophysical basin exploration.
Conclusion
According to the results of this research it is
possible to point out the necessity of additional core
testing on the marks higher that the project collector in
order to ana lyze collector peculiarities and increase
resource increments. In this case the results of the mud
logging of the well are very important as a necessity of
analyzing them during further work at the basin and a
research of the cross section by an expanded c omplex
of geophysical methods for wells in order to localize
and characterize the forms of oil -saturated rocks.

List of references.
1. The current state of a regional stratigraphic
neogene tier scale of the South of European Russia and
the ways of its correlation with the Mediterranean area.
Popov S.V., Golovina L. А., Goncharova I. А.,
Radionova A.P., Phillipova N.U., Ahmetjev M. А.,
Теsakov А.S., Trubihin V. М. In the compendium: The
state of the stratigraphic base of the centre and the
south -east of east European platform. The materials
from the session. 2016. P. 150 -154.
2. Alkun series and the Paleogene –neogene
boundary in northern Caucasus and in Pre -Caucasian
region. (lithology, stratigraphics, correlation). Е.V.
Beluzhenko, N.U. Phillipova, L. А. Golovina; The
works of the Research Geology Institute of The
Voronezh State University. 2018. № 102. P. 1 -102.
3. Mesozoic and Cenozoic t iers of the south of
Eastern Europe: some data about the conditions of
sedimentation and stratigraphics; Ulanovskaya Т.Е.,
Kalilin V.V., Perin А.N. Groznensky science
newsletter. 2018. I. 3. № 1 (9). P. 42 -53.
4. The contribution of modern multisubjectiona l
researches of the supporting sections in Taman and in
Pre -Caucasian region into the Neogene stratigraphics
of the south of Russia; Golovina L. А., Popov S.V.,
Goncharova I. А., Radionova A.P., Phillipova N.U.,
Rostovtzeva U.V., Trubihin V.M., Pilipenko О.V. В. In
the compendium: Russian Neogene and Quarter:
stratigraphics, events and paleogeography 2018. P. 62 -
67.
5. The stratotypes and supporting sections of the
regional Neogene tiers of the south of Russia and the
problems connected with their boundaries; Popov S.V.,
Golovina L. А., Radionova A.P., Goncharova I. А.,
Rostovtzeva U.V., Phillipova N.U., Palku D. V. In the
compendium: Russian Neogene and Quarter:
stratigraphics, events and paleogeography 2018. P. 47 -
54.
6. The fluctuations of the sea level on the northern
shelf of eastern Paratethys; Popov S.V., Antipov М.P.,
Zastrozhnov А.S., Kurina Е.Е., Pinchuk Т.N.
Stratigraphics . Geological correlation. 2010. I. 18. №
2. P. 99 -124.
7. Geochemical conditions of forming oil and gas
shale clusters i n the low -permeable thickness of the
Maikop series of Pre -Caucasian region. Kerimov V.U.,
Mustaev R.N., Yandarbiev N.SH. In the compendium:
Fundamental basis and innovative technologies of
forecasts, search and exploration of oil and gas. The
compendium of scientific works. RSU of Oil and Gas
(Scientific Research University) named after I. M.
Gubkin; 2016. P. 143 -160.