DETERMINATION OF POTENTIAL ZONES OF PRESENCE OF CAPILLARY-TRAPPED OIL RESERVES

2021 ◽  
pp. 24-27
Author(s):  
E.S. Azarov ◽  
◽  
N.N. Mikhailov ◽  
O.A. Frizen ◽  
◽  
...  
Keyword(s):  
Oil Reserves

Oil production facilities management improving using the analogy method

2020 ◽  
pp. 42-50
Author(s):  
V.V. Mukhametshin ◽  
Keyword(s):  
Oil Recovery ◽  
Oil Production ◽  
Geological Structure ◽  
Oil Fields ◽  
Facilities Management ◽  
Analogy Method ◽  
Oil Reserves ◽  
High Degree ◽  
Production Facilities

For the conditions of an oil fields group characterized by an insufficiently high degree of oil reserves recovery, an algorithm for objects identifying using parameters characterizing the objects’ geological structure and having a predominant effect on the oil recovery factor is proposed. The proposed algorithm allows us to substantiate and use the analogy method to improve the oil production facilities management efficiency by targeted selection of the information about the objects and processes occurring in them, removing uncertainties in low density conditions, the emergence of real-time decision-making capabilities, determination of optimal ways of current problems solving, reducing the probability of erroneous decisions making, justifying the trend towards the goals achieving.

scholarly journals PENENTUAN ISI AWAL MINYAK DITEMPAT DENGAN MENGGUNAKAN METODEMATERIAL BALANCE DAN VOLUMETRIK PADA RESERVOIR ADZ

2019 ◽  
Vol 3 (2) ◽  
pp. 87
Author(s):  
Dikky Fathurochman Sidiq ◽  
Lestari Said
Keyword(s):  
Material Balance ◽  
Volumetric Method ◽  
Balance Method ◽  
Bubble Point ◽  
Oil Reserves ◽  
Bubble Point Pressure ◽  
Point Pressure ◽  
Initial Content ◽  
Material Balance Method

<p>Determination of the initial oil content of a reservoir starts from exploration activities. In the initial stage, the determination of the initial oil reserves is determined. This aims to determine whether the project can be profitable for the company or not. Over time the determination of the initial contents of the oil continues to be carried out to improve the accuracy of calculations using the material balance method.<br />In the reservoir "ADZ" the type of reservoir is an undersaturated reservoir. This is because the initial pressure in 1980 was 2762.74 psia, while the bubble point pressure was 1625.8 psia. Until 2015 this reservoir was still above the bubble point pressure with a pressure of 1783.55 psia, this reservoir also had no gas cap in the initial conditions. The drive mechanism that works on this field is the solution for the gas drive.<br />Calculation of the initial content of oil in this final project uses 4 methods, namely volumetric method, material balance method, straight line, and Mbal software. Using the volumetric method, the initial oil reserves obtained at the place amounted to 174063462 STB, while the calculation of the initial oil reserves in place using the material balance method was 176497285 STB. The percentage difference in the initial content of oil between the methods is &lt;5%.</p>

scholarly journals Determination of clay minerals using gamma ray spectroscopy for the Zubair Formation in Southern Iraq

2021 ◽  
Author(s):  
Methaq K. Al-Jafar ◽  
Mohanad H. Al-Jaberi
Keyword(s):  
Clay Minerals ◽  
Gamma Ray ◽  
Oil Reserves ◽  
The North ◽  
North Part ◽  
Sandstone Formation ◽  
Cretaceous Period ◽  
The Relationship ◽  
North And South

AbstractSandstone oil reserves are composed of a variety of clay minerals, including kaolinite, illite, and chlorite. These clay minerals have a significant effect of reservoir quality. The upper sandstone member (USS) of Zubair Formation is the most plentiful reservoir of the field and it’s part of a large anticline that belongs to an enormous clastic sandstone formation, from the Lower Cretaceous period. A spectral gamma-ray (SGR) log was used to identify the type of clay minerals, depositional environment, and the relationship between total organic matter with uranium concentration. SGR log indicated that USS is composed mainly of chlorite, smectite, and illite clay minerals with the presence of kaolinite as a dominant clay mineral component. Th/U ratio varies between 2.55 and 8.52 and 1.11 to 11.68 in the north and south parts of the field, respectively. The USS had a fluvially dominated, sand-rich deltaic environment based on the Th/U ratio. Furthermore, Th/K cross-plot was found that the south part was more affected by illite compared with the north part, although the presence of kaolinite.

Surfactants Efficiency in Oil Reserves Exploatation

2017 ◽  
Vol 68 (2) ◽  
pp. 273-278
Author(s):  
Iuliana Ghetiu ◽  
Ioana Gabriela Stan ◽  
Casen Panaitescu ◽  
Cosmin Jinescu ◽  
Alina Monica Mares
Keyword(s):  
Crude Oil ◽  
Optimal Solutions ◽  
Effective Solution ◽  
Water Separation ◽  
Oil Reserves ◽  
Emulsion Layer ◽  
Oil Emulsions

The use of surfactants in the process of water separation from crude oil emulsions formed at extraction is an effective solution in the treatment of crude oil. But perfecting this technology to a higher degree of efficiency, in order to destabilize the emulsion formed, requires the determination of the parameters involved in the design and the correlation of the obtained results. This research also aims at finding optimal solutions that increase the degree of water separation from emulsions using surface-effective solutions to destabilize the emulsion layer. This research was basedon data from two wells that extract oil from Barc�u reservoir. To achieve this objective, the composition of crude oil was analyzed, the emulsion characteristics were established and the elected demulsifiers were tested. The study highlights the efficiency of destabilization up to 97.9 mass %.

Galactic orbits of stars

1966 ◽  
Vol 25 ◽  
pp. 93-97
Author(s):  
Richard Woolley
Keyword(s):  
Globular Cluster ◽  
Potential Field ◽  
High Velocity ◽  
Velocity Vector ◽  
Variable Stars ◽  
The Sun ◽  
Proper Motions ◽  
Rr Lyrae ◽  
The Galaxy

It is now possible to determine proper motions of high-velocity objects in such a way as to obtain with some accuracy the velocity vector relevant to the Sun. If a potential field of the Galaxy is assumed, one can compute an actual orbit. A determination of the velocity of the globular clusterωCentauri has recently been completed at Greenwich, and it is found that the orbit is strongly retrograde in the Galaxy. Similar calculations may be made, though with less certainty, in the case of RR Lyrae variable stars.

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