Vahabov Ulvi

Report
FORMATION OF COMPLEX
PRODUCTIVE SERIES DEPOSITS OF
AZERBAIJAN
Vahabov Ulvi
Institute of Geology ANAS
Deposits of Productive Series (PS) have been for a long time considered to be the
main reservoir for the territory of Azerbaijan and adjacent waters of the South Caspian Basin
(SCB). During this time, geological and geophysical investigations in the territory of the land of
Azerbaijan and the adjacent waters of the Caspian Sea have been opened and at present (44
onshore and 27 in the Caspian Sea) 71 oil and gas fields including and others are under
development. Despite the long duration of studies conducted by geologists of different
specialties and areas, many questions still remain controversial
Deposits of PS as previously described by many researchers
deposited on a rough surface of relief both within the land area and water
area of Azerbaijan part. Paleological map compiled by author proves these
statements and to a large extent characterize geological setting of PrePliocene age. According to this map one can see that distribution of
thicknesses both during lower and upper stages of PS in regional plan is in
direct relationship on complexes of underlying deposits.
Legend
Yalam a
Russia
Kusari
J
Structures
Hachm az
K2
Agzebirchala
Pg
Georgia
Talabi
Pnt
Mi
Kainardja
Pg
Mi-Pg
Srm
Oii and gas fields
Gizilburun-deniz
Zorat-deniz
Eo
Migachavir
reservoir
Mi-Srm Pnt
Am irarch
Kurdachani-deniz
Mkp
U talg i
Kura
Zardob
Muradchanli
K.Haram i
Kurovdag
Baku
Isolines of PS deposits thickness
Ashrafi
Chilov
Zone of PS deposits lask
Gunashli
Gurgani
Bahar
Garabah
Chirag
Аzeri
Vurgun
Shahdeniz
Pnt
Kursanga
Um id
Mi-Pg Garabagli
354
Pnt
Pnt
Srm
Pnt
Khara-Zira
Araks
Dan Ulduzu
Surachani
Lokbatan
8 M ar t
Sangachali
Duvani-deniz
Shihbagi
Srm
Gilavar
Piralahi
Kurdachani
Romana
Pnt
Srm
Sh.Absheron
Go sh ad ash
Great
Caucasus
Geokchay
Kanaz
State border of Azerbaijan
Caspian Sea
Babazanan
Srm
Kalamadin
-
Hilli
Lask of PS deposits
N eftech ala
Neftechala-deniz
South-Kurinskai
Lankapan
Astara
Lankaran-deniz
Paleogeological map of
Pre-Lower Pliocene age
Yalama
Hudat
0
Agzebirchala
500
500
0
Xachmaz
Talabi
West Kainardja
Kainardja
Gizilburun
G a rbi
A bs he ron Sh.Absheron
Gizilburun-deniz
710
Zorat-deniz
Zone of PS
deposits lack
Sand-ridge Absheronskay
635 Hazri
342 Arzu
106
Dan Ulduzu
Kurdashi-deniz Nardaran-deniz
265
Kurdahani-deniz
Halli
900
1219
Kirmaku Kurdashi
Pirallahi
Аshrafi
Novhani
Gala
468
323
Buzovna
Gurgani
510
Neft Dashlari
Shikay
Romana485
770
1200
Anart
Turkani
Gunashli
Djanub I
Bibi-Eibat
787
Utalgi
Kalamadin
B.Harami
Gar ab ah
Sangachali
Djanub II
8 Mart
580
1302
Chiragг
Solohai
764
Duvani-deniz
Bahar
K.Harami
Saba
600
600
1000
Kalmas
Khara-Zura
297
652
Mishovdag
Pirsagatт
Shahdeniz
A ze ri
Hamamdag
Kapaz
593
252
1000
Umud
Garasu
Mushvig
Sangi-Mugan
500
Kursanga
Agzebir
Babek
450
Aran-deniz
1000
1000
Dashli
614
Hilli Chegil1000
734
deniz
Neftechala
336
Sabail
Neftechala-deniz
Shurabad-deniz
Great
Caucasus
Baku
Zone of PS
deposits lack
Caspian Sea
Atashka
Nahchivani
581
Gizilagach
Mugan-deniz
Kurdashi
Inam
Talih-deniz
Araz-denizз
Lankaran-deniz
0
500
1000
Map of Lower group PS
Their sections they open a new
series of sand deposits of Absheron
facies of PS which deposited in
such
conditions
when
accumulation of sand material
occurred within a relatively small
part of Azerbaijan territory
of
Azerbaijan – Absheron oil-gas
bearing area, Djeirankechmyaz
depression, Low Kura depression
and the adjacent sea area . These
processes occurred together with
erosion and redeposition of clayey
rocks which composed the areas
«Caucasian land», and Absheron
geoanticline .
Yalama
168
Hachmaz
626
Georgia
Russia
5 00
Agzebirchala
Kura
1070
а
л
Adjinour
998
1500 1000 500
Gizilburun
Zorat-deniz
500
M ingachevir
reservoir
SumgaitGarbi Absheron Shargi Absheron
Shurabad deniz
Goshadash
Dan Ulduzu
Yashma-denis
1695
428
Great
Caucasus
0
1
Amirarh
1320
2000
i West Kainardja
Kainardja
Р .
А
Gabiri
2500
з
а
н
ь
Georgia
Ta
l ab
Geokchay
0
50
1500
Kurdahani-deniz
Aipara
Kurdahani
Romana
Surahani
Garachuhur
2000
Kalamadin
Padar
2000
Muradhanli
Saatli
437
Zone of PS
deposits lack
Baku
Gumadasi
2500
Zardob
Araks
Iran
Beilagan
Ashrafi
2042
2470
M.Harami
Bahar
Sangachali
2685
2802
8 Mart
Mishovdag
Duvany-de niz
2794 Kursanga
K hara-Zura
Shahdeniz
2254
Bulla-deniz
4299
Kurovdag
Umud
3640
4223
Garabagli
Babek
2014
Dashli
Babazanan
Sh.Vezirov
2850
Sabail
Bandovan-deniz
Hilli
Vezirov
3041Neftechala
Atashkah
5000
2860
5000
Djanub5000
Mugan-deniz
Gizilagach
4500
2820 Кurdashi II
4000
Kurdashi
Bolgarchay
Inam
Talish-deniz
Lankoran
3500
Lankoran-deniz
3000
2000 2500
1500
1000
500
Map of Upper group PS
Neft Dashlari
Ufug
Gunashli
Chirag
Oguz
2113Azeri
2839
2227Vurgun
Kapaz
2521
3000
3500
4000
4500
Caspaian Sea
500
1000
1500
2000
2500
At the beginning of formation of
the upper stage of PS the activity of
vertical tectonic movements led to
the fact, that waters of paleobasin
poured into the territory of
Azerbaijan – capturing the central and
Southern part of Shamaha-Gobustan
trough. Small Djeirankechmyaz, large
Adjinaur and Kura bays were formed
within the Low Kura depression. On
the North Adjinaur bay is limited by
Greater Caucasus, on the South by
territory of modern Mingechaur water
reservoir. On the South Kura bay is
limited by uplifts of Lesser Caucasus
and Talysh. Two small bays formed by
delta of PaleoAraks and PaleoBolgarchai
rivers can be found within this bay. Low
Kura bay itself was formed by delta of
Paleo Kura. Similar bays formed in
Siyazan monocline and the adjacent
waters of the Absheron archipelago.
Conclusions:
1. Sedimentation processes throughout the while age of
PS are characterized by a complex nature than previously
thought;
2. It was proved and graphically clarified with which
deposits the conformable and unconformable bedding of
rocks of PS at the underlying complexes is connected;
3. Maximum thickness of deposit of productive series
without dip angles is less than 6000 m.
The results of conducted study will allow to correct the
location for location of a more prospective wells for their
drilling within the territory of Azerbaijan and the adjacent
waters of the Caspian Sea and conducting of purposeful
drilling.

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