Adapting oil and gas downhole motors for deep mineral exploration drilling

2012 ◽  
Author(s):  
Amir Mokaramian ◽  
Vamegh Rasouli ◽  
Gary Cavanough
Keyword(s):  
Oil And Gas ◽  
Mineral Exploration ◽  
Exploration Drilling

scholarly journals A REVIEW OF NANOTECHNOLOGY APPLICATIONS IN THE OIL AND GAS INDUSTRIES

2019 ◽  
pp. 1-14
Author(s):  
B.M. Das ◽  
D. Dutta
Keyword(s):  
Oil Recovery ◽  
Oil And Gas ◽  
New Technology ◽  
Minimum Cost ◽  
Gas Production ◽  
Oil Fields ◽  
Drilling Fluids ◽  
Oil And Gas Production ◽  
Exploration And Production ◽  
Exploration Drilling

Nanotechnology encompasses the science and technology of objects with sizes ranging from 1 nm to 100 nm. Today, exploration and production from conventional oil and gas wells have reached a stage of depletion. Newer technologies have been developed to address this problem. Maximum oil production at a minimum cost is currently a huge challenge. This paper reviews nanotechnology applications in the oil and gas production sector, including in the fields of exploration, drilling, production, and waste management in oil fields, as well as their environmental concerns. The paper reviews experimental observations carried out by various researchers in these fields. The effect of various nanoparticles, such as titanium oxide, magnesium oxide, zinc oxide, copper oxide, and carbon nanotubes in drilling fluids and silica nanoparticles in enhanced oil recovery, has been observed and studied. This paper gives a detailed review of the benefits of nanotechnology in oil exploration and production. The fusion of nanotechnology and petroleum technology can result in great benefits. The physics and chemistry of nanoparticles and nanostructures are very new to petroleum technology. Due to the greater risk associated with adapting new technology, nanotechnology has been slow to gain widespread acceptance in the oil and gas industries. However, the current economic conditions have become a driving force for newer technologies.

scholarly journals STRATEGIC ANALYSIS OF COMPETITIVE POSITIONS OF OIL AND GAS COMPANIES IN KAZAKHSTAN

2017 ◽  
pp. 79-85
Author(s):  
Tatyana Vasilyevna Pervitskaya ◽  
Olga Anatolievna Gavrilova ◽  
Tamara Nikolaevna Nikulina ◽  
Maria Vladimirovna Shendo
Keyword(s):  
Oil And Gas ◽  
Oil Production ◽  
World Market ◽  
Strategic Analysis ◽  
Foreign Companies ◽  
The Matrix ◽  
Exploration Drilling ◽  
Abc Analysis ◽  
Oil And Gas Companies ◽  
Oil Gas

The article highlights the methods of strategic analysis in order to define the competitive positions of oil and gas companies of Kazakhstan. The forecast of oil production in Kazakhstan in 2016-2030 in the context of land and sea production and the footage in exploration drilling in Kazakhstan in the context of the largest customers have been submitted. The main barriers for entering and functioning of the market of oil sale have been defined. Oil production by the companies subject to the share of "National Company KazMunaiGas", JSC has been analyzed. The characteristic of the market of oil production and petroservice has been given. The competitive analysis revealed that dynamics of the market share in 2015-2016 for the majority of the presented companies was stated as negative, which was the result of growing competition from the foreign companies (Chinese) and strengthening of competitive force of "JSCKazMunaiGas", JSC and its affiliates (50% and 100% societies). The strategic analysis of the leading oil and gas companies of Kazakhstan was fulfilled with application of methods of ABC analysis; it allowed to reveal groups of oil and gas companies in the Kazakhstan market which have the greatest impact on formation of significant indicators in the considered economic area. There has been built the matrix of analysis of growth rate of branch share and sales in the context of dynamics of exploration drilling, revenues from sales of oil, gas and their processing products. The market leader is "Tengizshevroil", JSC. It has been found that the external economic conditions, which were characterized by low price per oil barrel in the world market, had a great impact on the oil production sector in Kazakhstan.

Experience in applying the method of fractal analysis to clarify the boundaries of facies zones when introducing digital technologies in the exploration process

2021 ◽  
pp. 36-50
Author(s):  
O. V. Elisheva ◽  
K. A. Sosnovskikh
Keyword(s):  
Fractal Analysis ◽  
Seismic Data ◽  
Oil And Gas ◽  
Scientific Center ◽  
Large Variability ◽  
Exploration Process ◽  
Exploration Drilling ◽  
Risk Maps ◽  
Hydrocarbon Deposits ◽  
Oil Company

In order to improve the efficiency of exploration drilling at various greenfield license areas owned by Rosneft Oil Company, Tyumen Petroleum Scientific Center LLC has been actively developing and implementing various innovative technologies in recent years that allow increasing the probability of discovering new hydrocarbon deposits. One of such approaches is the use of different methods based on the principles of fractality of geological objects. The article presents the results of using the fractal analysis method to solve one of the applied problems of oil and gas geology, namely, the correction of the boundaries of facies zones on facies maps, which are the basis for constructing risk maps for the "reservoir". It is shown that the boundaries of the facies zones on facies maps, built mainly on seismic data and a limited amount of materials from exploration drilling, have a large variability. The found statistical relationship between the distribution of the total reservoir thicknesses in different facies zones and the fractal dimension of the traps made it possible to correct facies and risk maps.

METHODOLOGICAL APPROACH TO ASSESSING THE EFFECTIVENESS OF THE USE OF A SEPARATE SERVICE WHEN ORGANIZING GEOLOGICAL EXPLORATION

2020 ◽  
Vol 4 (12) ◽  
pp. 29-37
Author(s):  
O. V. RUDENOK ◽  
◽  
N. V. ZONOVA ◽  
Keyword(s):  
Oil And Gas ◽  
Methodological Approach ◽  
Service Organizations ◽  
Geological Exploration ◽  
Exploration Drilling ◽  
Oil And Gas Enterprises

The article discusses the issues of evaluating the effectiveness of organizing exploration drilling based on a separate service. A methodological approach is presented and an assessment of the efficiency of using a separate service is given in comparison with various methods of organizing exploration drilling, including those based on the principles of outsourcing. The results obtained can be applied in the development of organizational and management solutions to optimize the system for attracting service organizations at oil and gas enterprises.

scholarly journals Institutions and the Location of Oil Exploration

2019 ◽  
Vol 18 (3) ◽  
pp. 1321-1350 ◽  
Author(s):  
James Cust ◽  
Torfinn Harding
Keyword(s):  
Oil And Gas ◽  
Institutional Quality ◽  
Regression Discontinuity Design ◽  
Host Countries ◽  
Data Set ◽  
Oil And Gas Exploration ◽  
Oil Companies ◽  
Exploration Drilling ◽  
Oil Sector ◽  
Global Data

AbstractWe provide evidence that institutions have a strong influence over where oil and gas exploration takes place. We utilise a global data set on the location of exploration wells and national borders. This allows for a regression discontinuity design with the identifying assumption that the position of borders was determined independently of geology. In order to break potential simultaneity between borders, institutions, and activities in the oil sector, we focus on drilling that occurred after the formation of borders and institutions. Our sample covers 88 countries over the 1966–2010 period. At borders, we estimate more than twice as much drilling on the side with better institutional quality. Subsample analyses reveal effects of institutions on exploration drilling in both developing and high income countries, as well as across three types of operating companies. We find that the supermajor international oil companies are particularly sensitive to institutional quality in developing countries. Our findings are consistent with the view that institutions shape both exploration companies’ incentives to invest in drilling and host countries’ supply of drilling opportunities.

scholarly journals Fluid Flow Investigation through Small Turbodrill for Optimal Performance

2013 ◽  
Vol 3 (1) ◽  
pp. 1 ◽  
Author(s):  
Amir Mokaramian ◽  
Vamegh Rasouli ◽  
Gary Cavanough
Keyword(s):  
Rotation Speed ◽  
Mineral Exploration ◽  
Drilling Fluid ◽  
Small Diameter ◽  
Cfd Modeling ◽  
Design Parameters ◽  
Hard Rocks ◽  
Pressure Distributions ◽  
Flow Investigation ◽  
Exploration Drilling

Basic design methodology for a new small multistage Turbodrill (turbine down hole motor) optimized for small size Coiled Tube (CT) Turbodrilling system for deep hard rocks mineral exploration drilling is presented. Turbodrill is a type of axial turbomachinery which has multistage of stators and rotors. It converts the hydraulic power provided by the drilling fluid (pumped from surface) to mechanical power through turbine motor. For the first time, new small diameter (5-6 cm OD) water Turbodrill with high optimum rotation speed of higher than 2,000 revolutions per minute (rpm) were designed through comprehensive numerical simulation analyses. The results of numerical simulations (Computational Fluid Dynamics (CFD)) for turbodrill stage performance analysis with asymmetric blade’s profiles on stator and rotor, with different flow rates and rotation speeds are reported. This follows by Fluid-Structural Interaction (FSI) analyses for this small size turbodrill in which the finite element analyses of the stresses are performed based on the pressure distributions calculated from the CFD modeling. As a result, based on the sensitivity analysis, optimum operational and design parameters are proposed for gaining the required rotation speed and torque for hard rocks drilling.

Design of Hydrostatically Supported Sand Islands for Arctic Drilling

1980 ◽  
Vol 102 (1) ◽  
pp. 49-54
Author(s):  
B. E. W. Dowse
Keyword(s):  
Oil And Gas ◽  
Water Pressure ◽  
Open Water ◽  
The Arctic ◽  
Paper Briefly ◽  
Construction Technique ◽  
Vertical Side ◽  
Exploration Drilling ◽  
Water Depths ◽  
Permanent Production

The search for oil and gas has already extended to the Arctic areas of the world. To date conventional sand islands have been used for exploration drilling purposes in water depths of up to 43 ft. In deeper water exploration has only been possible using floating drilling equipment which can only operate during the short summer season of open water. This paper briefly outlines the geotechnical principles and development to date of hydrostatically supported sand islands. This construction technique, which utilizes hydrostatic water pressure to stabilize dredged sand at near vertical underwater slopes, would allow sand islands to be quickly and economically built in water depths of up to 200 ft. The hydrostatically supported sand island is a gravity structure and, therefore, is only suitable for use on competent seabed soils. This paper presents two different designs which are currently proposed for use as drilling structures in such areas as the Beaufort Sea. One design is intended for use as a movable exploration structure and the second for a permanent production island that would remain on location for 30 to 50 yr. The near vertical side slopes of the hydrostatically supported sand islands reduce the amount of sand required to manageable amounts, and allow the construction on location to be safely completed during the short Arctic summers. The sand provides sufficient mass to resist ice pressures.

VARIABILITY OF ORE MINERALIZATION IN THE NORTH-WEST-TRENDING EXTENSIONOF THE LUBIN–SIEROSZOWICE DEPOSIT

2017 ◽  
pp. 109-0 ◽  
Author(s):  
Sławomir OSZCZEPALSKI ◽  
Andrzej CHMIELEWSKI ◽  
Stanisław SPECZIK
Keyword(s):  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Core Material ◽  
Gas Industry ◽  
Sulphide Mineralization ◽  
North West ◽  
The North ◽  
Ore Mineralization ◽  
Exploration Drilling ◽  
Drill Holes

The Polish Geological Institute – NRI has conducted investigations of the Kupferschiefer series since 1957, when the giant sediment-hosted stratiform Cu-Ag ore deposit was discovered in the central part of the Fore-Sudetic Monocline. Until 1991, a number of drilling programs were completed by PGI-NRI and later research has been focusing mainly on cooperation with oil and gas industry and their core material. Over the last few years, thanks to systematic examination of the drill holes located in the north-western extension, many prospective areas have been recognized and delineated. These prospects are located between Lubin-Sieroszowice deposit and the eastern part of the Zielona Góra oxidized field. In the Kożuchów area, the lower part of Zechstein copper-bearing series contain only relict sulphide mineralization accompanied by iron oxides while reduced rocks with metal sulphides occur in the uppermost part of Zechstein Limestone or at the base of Lower Anhydrite. Grochowice area, where reduced facies prevail in copper-bearing series, is characterized by the predomination of rich Cu-Ag mineralization proximaly to oxidized area. The western part of studied area is dominated by Cu-S type sulphides (chalcocite, digenite, covellite) whereas the eastern part is represented by Cu-Fe-S type minerals (bornite, chalcopyrite) with high galena and sphalerite concentrations. The spatial variability of sulphide mineralization with respect to the oxidized rocks indicates that Bytom Odrzański deposit extends in the north-west direction, continuing in the form of a copper belt along the eastern border of the oxidized area. An extensive deep exploration drilling program is implemented to verify the resource potential within predicted copper belt.

scholarly journals Applying seismic stratigraphy analysis for assessing upper Oligocene stratigraphic traps in Southeastern Cuu Long Basin

2017 ◽  
Vol 20 (K4) ◽  
pp. 48-56
Author(s):  
Chuc Dinh Nguyen ◽  
Tu Van Nguyen ◽  
Hung Quang Nguyen ◽  
Cuong Van Bui ◽  
Thanh Quoc Truong ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Seismic Stratigraphy ◽  
Gas Production ◽  
Hydrocarbon Potential ◽  
Seismic Attribute ◽  
Oil And Gas Production ◽  
Attribute Analysis ◽  
Exploration Drilling ◽  
Seismic Sections ◽  
Log Interpretation

As oil and gas production has been going on over a few decades, conventional plays such as pre-Tertiary fractured basement highs and Cenozoic structural traps become more and more exhausted, and the remaining targets of the same type do not have sufficient reserves for development and production. Exploration activities in Cuu Long basin, therefore, are shifting towards more complicating types of plays which are stratigraphic traps and combination traps. Several researches were conducted in southeastern marginal slope and indicated the possibility of stratigraphic pinch-out traps with insufficient petroleum system and low hydrocarbon potential. In spite of many researches, there are still difficulties in defining the distribution and in evaluating hydrocarbon potential of these traps, so seismic stratigraphy analysis in accompanied with interpretation of seismic attribute and well logs is very necessary to support this problem. Seismic stratigraphic analysis on seismic sections, in agreement with seismic attributes’ and log analysis’ findings, show that the stratigraphic/combination traps in Oligocene C and D were formed during lowstand system tract as sigmoid-oblique clinoforms downlapping onto underlying strata in distributary mouths/delta settings. The integration of seismic attribute analysis and well log interpretation has further defined the fan-shaped distribution of these traps. Thus, using various methods, the stratigraphic traps can be better revealed. Further studies, however, need to be carried out to fully evaluate hydrocarbon potential of these stratigraphic/ combination traps, and minimize risks in exploration drilling.

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