Current Issue
Scientific Petroleum 2023, 2
OIL AND GAS FIELDS EXPLORATION, GEOLOGY AND GEOPHYSICS
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O. V. Rajabli
Azerbaijan State Oil and Industry Universit, Baku, Azerbaijan |
In
order to evaluate the paleotectonics of the Mesozoic sediments in the
Yalama-Khudat uplift zone, lithofacies and tectonic activity index were used.
Representation of lithofacies with more accurate data and digital values of
thickness data help to obtain realistic results about paleotectonic
development. In the study, the tectonic development of the Yalama area was
evaluated based on geological data. Although the decrease of tectonic activity
continued towards the end of the Cretaceous, the repetition of lithofacies can
be explained by the repetition of marine transgression and regression processes
in the same area. The paleotectonic accumulation conditions of the Cretaceous
sediments had their influence on the oil-gas generation and collector
characteristics of the sediments. Keywords:
Paleotectonic analysis;
Lithofacies features; Sediment accumulation rate; Tectonic activity.
e-mail:
orkhanrajabli@gmail.com
|
N. A. Imamverdiyev,
M. Y. Hasanguliyeva, A. A. Valiyev, R. E. Rustamova
Baku State University, Baku, Azerbaijan; Institute
of Geology and Geophysics of the Ministry of Science and Education Republic of
Azerbaijan, Baku, Azerbaijan; Azerbaijan International Mining
Company, Baku, Azerbaijan |
The
source of the primary magmatic magma of the Upper Pliocene-Quaternary
trachybasalt-trachyandesite volcanic complex of the central part of the Lesser
Caucasus is investigated in the article. The distribution of rare earth elements
in the rocks of the trachybasalt-trachyandesite complex indicates that the
source of the vulcanite’s was a metasomatically altered garnetbearing mantle
substrate. Based on the geochemical characteristics of moderately alkaline
olivine basalts, it was determined that the source of the magma is a
lithospheric mantle containing metasomatized phlogopite-garnet-rutile. Keywords:
Lesser Caucasus; Upper
Pliocene-Quaternary volcanism; Primary magma; Lithospheric mantle hosting
metasomatized phlogopite-garnetrutile.
e-mail:
inazim17@yahoo.com
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RESERVOIR AND PETROLEUM ENGINEERING
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G. A. Abbasov, N. N.
Khalilov, L. M. Talibzade, L. B. Gurbanzade
«OilGasScientificResearchProject» Institute, SOCAR,
Baku, Azerbaijan |
As a
result of analyzing solutions and dry residues obtained during the study of the
interaction of core samples with various types of water, it was found that the
interaction of the core with distilled water resulted in the dissolution of
Na++K+, Ca2+, Cl-, HCO3- ions and other components, leading to a decrease in
the mass of the core dry residue by more than 2.0%. Interaction of the core
with technical water led to an increase in mass by approximately 1.0%. In the
case of seawater, the mass of the core dry residue decreased by more than 1.0%.
The conducted research proves that the interaction of the core with different
types of water causes certain physico-chemical processes, as a result of which
the dissolution and precipitation of various salts occur. These results can
have significant practical value in conducting analysis and determining the
composition of various solutions. Keywords:
Core; Technical water;
Seawater; Distilled water; Soluble salts; Precipitated salts; Sulfate-sodium
type.
e-mail: nurlan.xalilov1@gmail.com
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E. S. Abdullaeva
«OilGasScientificResearchProject» Institute, SOCAR,
Baku, Azerbaijan |
Considerable
petroleum reserves of Azerbaijan are confined to fields, the layers of which
are mainly structured of incompetent rocks. Well operation is accompanied by
the destruction of the bottom-hole formation zone, and, as a consequence, sand
production, which leads to a drop in oil production. Sand production leads to
the formation of sand plugs in wells, which makes it difficult for fluid to
flow from the formation to the well. In this regard, new foam and foam-polymer
compositions for washing sand plugs in sand-producing wells have been developed
and studied. The advantage of the developed foam systems as flushing liquids in
order to ensure optimal consumption of surfactants and aluminum nanoparticles
is considered. Considering that the problem of sanding in the fields of
Azerbaijan is very relevant, the developed foam compositions are widely used. Keywords:
Oil well; Bottom – hole;
Appearance; Sand pluq; Foam compositions; Polimer; Aluminum nanoparticles.
e-mail: elmiraabdullayeva2016mailru.abd@mail.ru
|
|
K. I. Metiyev, M. E.
Alsafarova, N. I. Emel
«OilGasScientificResearchProject» Institute, SOCAR,
Baku, Azerbaijan |
A new
inhibitor «NDP-22M» was developed to reduce the pour point of highly paraffinic
oils and prevent the formation of asphalt, resin and paraffin deposits. The inhibitor
contains a nonionic surfactant, a depressant agent and a solvent. The prepared
inhibitor has the ability to reduce the pour point and viscosity of oil, as
well as to prevent ARPD. The prepared inhibitor was studied on oil brought from
the wells of the oil and gas production department of the production
association «Azneft», «Oil Pipeline Administration». In this oil, the amount of
paraffin is 10.8%. In the course of research, it was found that the
effectiveness of adding 300 g/t of reagent to oil is 75%. Keywords:
Precipitation; Depressant; Oil;
Pour point; Paraffins; Depressive effect; Dynamic viscosity; Viscosity effect.
e-mail: matanatalsafarova@gmail.com
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|
А. Q. Gurbanov,
L. Q. Hajikerimova, A. F. Akperova
UBOC, Baku, Azerbaijan; «OilGasScientificResearchProject»
Institute, SOCAR, Baku, Azerbaijan |
The
deposition of asphaltenes, resins, paraffins (ARP) and salts in tubing, surface
equipment and transport lines is one of the important problems in the
production and transportation of well products. At high temperatures at the
bottom of the well, the components of crude oil are in a liquid state; when the
temperature decreases, as they rise to the surface and exit the well,
asphaltene, resinous, and paraffin compounds begin to separate from the oil and
settle in production pipes and equipment. Laboratory studies were carried out
using highly paraffinic oil from the Sangachal-Duvanni-Khara-Zira field, a new
developed paraffin sedimentation inhibitor named after N. Narimanov. The
effectiveness of inhibitors was determined by the «cold block» method. The results
of numerous studies have shown that the developed new inhibitor is highly
effective in preventing the precipitation of paraffins and salts, as well as in
improving both the rheological properties and the freezing point of oils. Keywords:
Well; Parafin; Asphaltene;
Resin; Salt; Bottomhole zone; Tubing; Reagent; Inhibitor; Composition.
e-mail:
lala.qadjikerimova@mail.ru
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|
M. A. Jamalbayov , Kh. M. Ibrahimov, N. A. Alizadeh
«OilGasScientificResearchProject» Institute, SOCAR,
Baku, Azerbaijan; Heydar Aliyev Military Institute, Baku,
Azerbaijan |
The
problem of displacing hydrocarbon systems injected into the reservoir by water
in zonally heterogeneous collectors is considered. In this case, the reservoir
of circular shape, developed by a single central well, is assumed to consist of
two zones with different reservoir and rheological properties. The solution to
the problem is obtained, taking into account the incomplete displacement,
compressibility of water, and PVT properties of the hydrocarbon system—phase
transformation, mass exchange between phases of the hydrocarbon system. Based
on the binary representation of the complex hydrocarbon system, a solution to
the considered problem is obtained, and an algorithm for calculating the main
indicators of the hydrocarbon displacement process to the well is proposed.
This algorithm accounts for the fact that the reservoir has different reservoir
and rheological characteristics in the near-wellbore region (internal zone) and
the distant part of the reservoir (i.e., in the external zone). Keywords:
Displacement; Gas-condensate
mixture; Volatile oil; Heterogeneous reservoir; Water flooding; Binary model;
Unsteady-state flow.
e-mail: mehemmed.camalbeyov@socar.az
|
К. I. Matiyev, A. M.
Samedov, A. D. Aghazadeh, F. M. Akhmedov
«OilGasScientificResearchProject» Institute, SOCAR,
Baku, Azerbaijan |
In the
field development practice, the most common method for protecting oilfield
equipment and pipeline surfaces from inorganic salt deposits is inhibitor protection.
To enhance prevention efficiency, a salt deposit inhibitor has been developed,
which contains a surfactant, acid, and anionic polymer. The aim of this
development is to eliminate the need for scarce and expensive reagents, increase
formation productivity by preventing the formation of inorganic deposits during
the treatment of carbonate and terrigenous productive formations, and eliminate
contamination of formation and downhole equipment by insoluble salts, as well
as salt deposits in pipeline systems. Samples prepared at a flow rate of 10-30
g/t demonstrated a high inhibitor effect in preventing calcium sulphate and
carbonate deposition. Field tests of the developed salt deposition inhibitor yielded
positive results. Keywords:
Salt deposition inhibitor;
Adsorptiondesorption properties; Inhibition efficiency; Calcium sulfate;
Calcium carbonate; Field tests.
e-mail:
kazim.metiyev@socar.az
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Publisher’s Note |
This article was published on December 2022 with several errors in
the authors and affiliations. The correct authors and affiliations appear
below. All online versions of the article were corrected on January 2023; the
article is correct as it appears in the online version of the journal.
Development and
laboratory test of the gelling composition for the selective isolation of
formation waters
Kh. M. Ibragimov,
А. Q. Gurbanov, F. K. Kazımov, A. F. Akberova
«OilGasScientificResearchProject» Institute,
SOCAR, Baku, Azerbaijan
Umid Babek Operation Company (UBOC), Баku,
Azerbaijan
Scientific Petroleum No. 2 (2022) 040-046
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Scientific Petroleum 2023, 2
