scholarly journals Synergetics of geological mediums and its impact on the effectiveness of the exploitation and exploration for mineral deposits

2019 ◽  
pp. 15-21
Author(s):  
Yu. I. Voitenko
Keyword(s):  
Gas Flow ◽  
Oil And Gas ◽  
Solid Phase ◽  
Dynamic Effect ◽  
Gas Production ◽  
Reservoir Properties ◽  
Uniform Compression ◽  
Reduced Pressure ◽  
Oil And Gas Production ◽  
Joint Influence

The mechanisms of joint influence of mountain and reservoir pressures, saturating fluid, structure elements of rocks and external dynamic effects on their behavior in natural conditions, in particular near of the well, are investigated. With specific examples, it is shown that the behavior of rocks with such a set of influencing factors is determined by the laws of synergetics and the combined action of external influences, uneven stress-strain state of the rocks, the pore pressure and chemo mechanical effects. Examples are the results of gas-flow and gas-metric studies of closed wells, as well as the results of explosive perforation and intensification of producing wellbores at different depths. Defects occurrence in minerals with a high modulus of elasticity is initiated by an external dynamic effect and independently under the action of the saturating fluid. Then, under volumetric non-uniform compression and reservoir pressure, gradual fracturing of terrigenous rocks occurs at the micro and macro level. The result of these processes is the formation of areas of the improved permeability near the wells during drilling, production and suspending. When drilling on traditional technology they will impair formation reservoir properties via infiltration of water and solid phase. In oil and gas wells and in closed wells - improve these properties. Analysis of the behavior of rocks from the synergetic position shows that the best mode of loading on the reservoir during wells drilling, wells completion and oil and gas production is depression (reduced pressure) on the reservoir. The known and new promising technologies for the intensification of oil and gas production are determined.

Onshore Petroleum Centre of Excellence—collaboration by industry partners, government and TAFE to deliver trained staff for an expanding onshore petroleum industry

2015 ◽  
Vol 55 (2) ◽  
pp. 496
Author(s):  
Venner Bettina ◽  
Wood Chris ◽  
Welsh Kevin ◽  
Mossman Fiona ◽  
Goiak Paul ◽  
...  
Keyword(s):  
Gas Flow ◽  
Joint Venture ◽  
Oil And Gas ◽  
Petroleum Industry ◽  
Gas Production ◽  
Mechanical Equipment ◽  
Production Environment ◽  
Oil And Gas Production ◽  
Training Facility ◽  
Set Up

Santos, Beach Energy and Senex Energy are collaborating with the SA Government and TAFE SA to set up a hub for onshore oil and gas training in Adelaide. The training facility provides a fully immersive simulated oil and gas production environment, as well as static equipment displays for demonstration and educational purposes. It is used for technical training, including safety, environmental and sustainable operational principles and key maintenance activities. The simulated production environment includes different pump types, gas compressors, a pig launcher and receiver, gas metering skid, field separator and small tanks, as well as associated pressure safety valves, flow valves and other instruments. Water is used to simulate oil and air is used to simulate gas flow. The static equipment display includes various valve types, flanges and a wellhead. Santos, as operator of the SA Cooper Basin joint venture (of which Beach Energy is a member), has committed significant oil and gas production and mechanical equipment, engineering design, transportation and installation of the training facility’s equipment. The SA Government, Senex Energy and Beach Energy have committed funding for fit-out, capital works and the running of the facility for the first two years. Industry partners GPA Engineering, Fyfe Engineering, Logicamms, Veolia Environmental Services, Toll Energy, Transfield Services, Ottoway Engineering, Bureau Veritas, MRC Group, Max Cranes, Whitham Media Australia, Inductabend, Toyota Australia, James Walker Australia, Coventry Fasteners, Centralian Controls and Central Diesel are providing expertise and services. The training facility officially opened on 16 February 2015

Variable Inlet Guide Vane Losses and Their Effect on Downstream Impeller and Diffuser in Wet Gas Flow

2017 ◽  
Author(s):  
Levi André B. Vigdal ◽  
Lars E. Bakken
Keyword(s):  
Gas Flow ◽  
Oil And Gas ◽  
Guide Vane ◽  
Gas Production ◽  
Test Facility ◽  
Innovative Technology ◽  
Inlet Guide Vane ◽  
Oil And Gas Production ◽  
Wet Gas ◽  
The Impact

Adopting the innovative technology found in a compressor able to compress a mixture of natural gas and condensate has great potential for meeting future challenges in subsea oil and gas production. Benefits include reduced size, complexity and cost, enhanced well output, longer producing life and increased profits, which in turn offer opportunities for exploiting smaller oil and gas discoveries or extending the commercial life of existing fields. Introducing liquid into a centrifugal compressor creates several thermodynamic and fluid-mechanical challenges. The paper reviews some of the drive mechanisms involved in wet gas compression and views them in the context of the test results presented. An inlet guide vane (IGV) assembly has been installed in a test facility for wet gas compressors and the effect of wet gas on IGV performance documented. The impact of changes in IGV performance on impeller and diffuser has also been documented. The results have been discussed and correction methods compared.

scholarly journals NEW DATA ON PROMISING OIL AND GAS OBJECTS IN THE SANDSTONES OF THE YAMNA SUITE OF THE PALEOCENE IN THE NORTHWEST OF THE SKIBA ZONE OF THE UKRAINIAN CARPATHIANS

2021 ◽  
pp. 90-110
Author(s):  
V.Ye. Shlapinskiy ◽  
H.Ya. Havryshkiv ◽  
Yu.P. Haievska
Keyword(s):  
Oil And Gas ◽  
Gas Production ◽  
Oil Field ◽  
Distribution Area ◽  
Total Production ◽  
Reservoir Properties ◽  
Oil And Gas Production ◽  
The North ◽  
Natural Oil ◽  
Porosity And Permeability

More than 6 million tons of the oil have been extracted in the Skybа Zone of the Ukrainian Carpathians. In particular, 4.2 million tons of oil (85.7% of total production) were obtained from the Yamna sandstones of Paleocene, which are characterized by satisfactory physical properties. Most of the areas of fields that exploited them are located in the Boryslav oil and gas production area. Among them are such oil fields as Skhidnytsko-Urytske (more than 3.8 million tons of oil extracted), Violeta, Faustina, MEP, Miriam and Ropne. Outside this area, oil was extracted in Strilbychi and Staraya Sol. At most of these fields, oil horizons are at a depth of only 100-800 m. The gas and condensate are extracted at the field of Tanyavа in the wing of the Vytvytska Luska of the Berehova Skyba, which has been torn off by the thrust. In addition, a very large number of natural oil and gas manifestations - direct signs of oil and gas potential - have been recorded in the Skyba Zone. All this indicates the potential prospects of structures within the Skyba Zone, including shallow ones. The distribution area of Yamna sandstones is much larger than the area of these deposits. The distribution area of sandstones of Yamna is much larger than the area of these deposits. It occupies about half of the area of Skyba Zone. Part of it can be considered promising, removing areas where of Yamna sandstones are present on the day surface, although, even in such conditions, they are in some cases industrially oil-bearing (Strelbychi oil field). Sandstones of Yamna are characterized by satisfactory reservoir properties., The calculated porosity and permeability reach the maximum values at known deposits: 0.182 and 130 ∙ 10–3 microns2 respectively, and the estimated thickness of 13.5 m. In the Folded Carpathians and, especially, within the north-eastern fragments (Beregova, Oriv, Skoliv) in different years performed a large amount of field seismic surveys. On the basis of the obtained materials, for the first time in the Carpathian region structural constructions were made on the reflecting horizons in the Paleocene (Yamna Formation) and in the Stryi Formation of the Upper Cretaceous. This article evaluates the prospects of these research objects. The Khodkiv and Osichnyanska structures of Berehova Skyba are recommended for conducting search works.

scholarly journals Impact of Diagenesis on the Reservoir Properties of the Cretaceous Sandstones in the Southern Bredasdorp Basin, Offshore South Africa

Minerals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 757
Author(s):  
Temitope Love Baiyegunhi ◽  
Kuiwu Liu ◽  
Oswald Gwavava ◽  
Christopher Baiyegunhi
Keyword(s):  
Oil And Gas ◽  
Gas Production ◽  
Reservoir Quality ◽  
Reservoir Properties ◽  
Oil And Gas Production ◽  
Thin Sections ◽  
Hydrocarbon Reservoir ◽  
Porosity And Permeability ◽  
The Impact

The Cretaceous sandstone in the Bredasdorp Basin is an essential potential hydrocarbon reservoir. In spite of its importance as a reservoir, the impact of diagenesis on the reservoir quality of the sandstones is almost unknown. This study is undertaken to investigate the impact of digenesis on reservoir quality as it pertains to oil and gas production in the basin. The diagenetic characterization of the reservoir is based on XRF, XRD SEM + EDX, and petrographic studies of 106 thin sections of sandstones from exploration wells E-AH1, E-AJ1, E-BA1, E-BB1 and E-D3 in the basin. The main diagenetic processes that have affected the reservoir quality of the sandstones are cementation by authigenic clay, carbonate and silica, growth of authigenic glauconite, dissolution of minerals and load compaction. Based on the framework grain–cement relationships, precipitation of the early calcite cement was either accompanied or followed up by the development of partial pore-lining and pore-filling clay cements, particularly illite. This clay acts as pore choking cement, which reduces porosity and permeability of the reservoir rocks. The scattered plots of porosity and permeability versus cement + clays show good inverse correlations, suggesting that the reservoir quality is mainly controlled by cementation and authigenic clays.

scholarly journals Optimizing productivity in oil rims: simulation studies on horizontal well placement under simultaneous oil and gas production

2020 ◽  
Author(s):  
Oluwasanmi Olabode ◽  
Sunday Isehunwa ◽  
Oyinkepreye Orodu ◽  
Daniel Ake
Keyword(s):  
Oil Recovery ◽  
Oil And Gas ◽  
Horizontal Wells ◽  
Gas Production ◽  
Gas Oil ◽  
Reservoir Properties ◽  
Well Placement ◽  
Hydrocarbon Production ◽  
Oil And Gas Production ◽  
Oil Rim

AbstractThin oil rim reservoirs are predominantly those with pay thickness of less than 100 ft. Oil production challenges arise due to the nature of the gas cap and aquifer in such reservoirs and well placement with respect to the fluid contacts. Case studies of oil rim reservoir and operational properties from the Niger-Delta region are used to build classic synthetic oil rim models with different reservoir parameters using a design of experiment. The black oil simulation model of the ECLIPSE software is activated with additional reservoir properties and subsequently initialized to estimate initial oil and gas in place. To optimize hydrocarbon production, 2 horizontal wells are initiated, each to concurrently produce oil and gas. Well placements of (0.5 ft., 0.25 ft. and 0.75 ft.) are made with respect to the pay thickness and then to the fluid contacts. The results show that for oil rim with bigger aquifers, an oil recovery of 8.3% is expected when horizontal wells are placed at 0.75 ft. of the pay thickness away from the gas oil contact, 8.1% oil recovery in oil rims with larger gas caps with completions at 0.75 ft. of the pay zone from the gas oil contacts, 6% oil recovery with relatively small gas caps and aquifer and 9.3% from oil rims with large gas caps and aquifers, with completions at mid-stream of the pay zone.

scholarly journals DEVELOPMENT OF METHODS OF INCREASING OIL RECOVERY OF FIELDS IN THE CHECHEN REPUBLIC

2021 ◽  
Author(s):  
А.А. Умаев ◽  
А-М.Б. Измаилов ◽  
Т-А.У. Мусаев ◽  
А.Ш. Халадов
Keyword(s):  
Oil Recovery ◽  
Oil And Gas ◽  
Gas Production ◽  
North Caucasus ◽  
Reservoir Properties ◽  
Oil And Gas Production ◽  
The North ◽  
Geological Conditions ◽  
Temperature And Pressure ◽  
The Impact

Наряду с совершенствованием эксплуатации скважин и повышением продуктивности за счет работ по воздействию на призабойную зону пласта, одним из главных вопросов является повышение нефтеотдачи пласта. Актуальность этих вопросов не вызывает сомнения применительно к месторождениям Северного Кавказа. Особенные геологическиеусловия присущие продуктивным пластам Чеченской республики (большая глубина залегания, высокая температура и давление, неоднородность коллекторских свойств и т.д.) затрудняют или полностью исключают возможность применения известных методов физико-химического воздействия на пласты с целью интенсификации отборов нефти и повышения нефтеотдачи. На нефтегазодобывающих объектах ЧР применялись основные физико-химические, тепловые и гидродинамические методы повышения нефтеотдачи пластов Along with improving the operation of wells and increasing productivity due to the work on the impact on the bottomhole formation zone, one of the main issues is the increase in oil recovery. The relevance of these issues does not raise doubts in relation to the fields of the North Caucasus. The special geological conditions inherent in the productive formations of the Chechen Republic (large depth, high temperature and pressure, heterogeneity of reservoir properties, etc.) make it difficult or completely exclude the possibility of using known methods of physicochemical treatment of formations in order to intensify oil production and increase oil recovery. The main physical, chemical, thermal and hydrodynamic methods of enhanced oil recovery were used at oil and gas production facilities in the Chechen Republic

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