AGH Drilling, Oil, Gas
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ISSN 2299-4157
e-ISSN: 2300-7052
Issue Date
2017
Volume
Vol. 34
Number
No. 1
Description
Journal Volume
AGH Drilling, Oil, Gas
Vol. 34 (2017)
Projects
Pages
Articles
Prediction of conditions of longterm operated drill pipes failure
(2017) Vitâz', Oleg Ûlìjovič
An experimental assessment of the force criterion for metal failure of longterm drill pipes operation wascarried out. Defined were the conditions under which during tripping the failure of longterm operated drillpipes is possible when they contain an external or internal circumferential transverse crack. The interrelationof critical external or internal circumferential transverse cracks in drill pipes to the drilling stringweight was established. It was shown that the internal cross cracks during drilling string tripping at depthsexceeding 3000 m are more dangerous than the external ones, whereas within the range of 1000–3000 m the external circumferential transverse cracks are more dangerous.
Prospects for development of the oil market in the world
(2017) Rychlicki, Stanisław; Stopa, Jerzy
Crude oil and natural gas were in the twentieth century and are still the most important strategic resources, which determine many aspects of politics and the world economy. The price level and the availability of oil and gas has a huge impact on the economic situation of all countries of the world. The developments in the oil market were the cause of many wars. The use of oil on an industrial scale it was observed at the end of the nineteenth century and once was considered the most effective source of energy for universal use. Since then, a steady increase of its share in the energy balances of the World. Growing automotive industry in the early twentieth century was also an important factor in increasing the use of oil, which is then processed in many emerging refineries. All this led to the development of the oil industry, which has become an alternative to coal as the main fuel so far. However, a major breakthrough in the use of oil occurred only after the Second World War, when began to rapidly develop such industries as chemical-based oil or plastics industry. This article presents information on traditional and prospective areas where oil deposits in the world and its resources as well as international trade, price formation in the market and prospects of development of the oil market in the world.
Microscale modeling of CO₂-EOR process in coupling with laboratory measurements
(2017) Janiga, Damian; Czarnota, Robert; Stopa, Jerzy; Wojnarowski, Paweł
Application of enhance oil recovery methods (EOR) as carbon dioxide injection ($CO_2$-EOR) can increase technological or economical production indicators. For the evaluation of process effectiveness, full scale simulation model is used. Numerical models require large number of high quality geological and production data. However, the necessary data may be uncertain therefore microscale laboratory experiment and modeling can provide a knowledge to understand the fluid flow phenomena. In this paper the authors propose an integrated decision model coupling laboratory measurements of displacement with the numerical simulation of flow. First step consists of routine rock properties determination, after that core sample geometry, porosity and permeability were reconstructed in numerical reservoir simulator. Simple core model was combined with relative permeability measurements for oil - water and oil - carbon dioxide as well as fluid properties. Calibrated to laboratory measurements simulation model was used to analyze the process of $CO_2$-EOR and evaluation of its effectiveness depending on technological parameters.
Russian oil and gas industry on the eve of changes
(2017) Kosowska, Katarzyna; Kosowski, Piotr
In 2016 Russia’s oil and gas industry celebrated 150th anniversary of its creation. It was a breakthrough moment in the history of Russian economy’s development due to two main rea-sons: firstly, it was a strong impulse to develop the national oil industry, secondly, a proof of huge technological potential of Russia. Today, when oil industry is at its best technological revolution, Russian oil sector loses to its competitors due to the lack of any reforms for two decades. But it is still the most important part of Russian economy - income from export of raw materials (mainly crude oil) has been a crucial part of federal budget (around 50%) which allows to subsidize other branches of economy. In the coming years Russia’s oil sector will have to face many challenges, both external (low oil price, sanctions) and internal (reducing production level, tax reforms). It is highly probable that despite negative experience of economic crisis, Russia’s authorities will not resign from the perception of oil sector as a driving force of the national economy. But Russia should find and develop other tradable industries or its long-term economic prospect will not be optimistic.
The use of computer simulations to assess the effectiveness of the revitalization of mature oil fields using the selected reservoir as an example
(2017) Podsobiński, Daniel; Stopa, Jerzy; Wojnarowski, Paweł
The decrease in new oil field discoveries over the years makes it necessary to return to the abandoned partially depleted oil fields. Due to remaining significant amount of geological resources, mature oil field can be important in the overall balance. The production rate can be increased using various recovery methods. This paper presents a method of revitalizing mature oil fields used in Poland and wide world as well as screening criteria were presented. This article indicate the role of computer simulation as a tool in planning process of revitalization works in case of mature oil fields exploration and management. A recovery methods would be proposed, using computer simulation for the selected reservoir in south – eastern Poland as an example. The effectiveness of the recovery method would be determined through forecast of future production. An preliminary economic analysis would be performed to determine the feasibility of the seletected method taking into account the initial investment costs and different oil prices.