scholarly journals Financial examination on exploration and development of gas and oil fields: Definition of appraisal formulae, new equation proposal and method of investment sum calculation.

1995 ◽  
Vol 60 (4) ◽  
pp. 275-284
Author(s):  
Tatsuo Tanaka
Keyword(s):  
Oil Fields ◽  
New Equation ◽  
Definition Of ◽  
Exploration And Development

Emerging Technology in Fitness-for-Service Assessment of Crack-Like Flaws

2019 ◽  
Author(s):  
Ted L. Anderson
Keyword(s):  
Stress Intensity ◽  
Element Analysis ◽  
Reference Stress ◽  
Future Edition ◽  
Failure Assessment ◽  
Complex Shapes ◽  
Constraint Effects ◽  
New Equation ◽  
Definition Of ◽  
Flaw Shape

Abstract This paper describes several recent advances in crack assessment technology that have been or will be incorporated into the API 579 fitness-for-service standard. Four technology areas are addressed herein: • Stress intensity factor solutions. The 2016 edition of API 579 contains an extensive library of stress intensity solutions inferred from 3D finite element analysis. • A new equation for fitting elastic-plastic J solutions. A parametric equation that captures the elastic, fully-plastic and contained-yielding regimes of deformation provides an alternative definition of reference stress in the failure assessment diagram (FAD) method. • An enhanced constraint adjustment. A future edition of API 579 will include an improved version of the Wallin methodology for shifting the Master Curve reference temperature to account for constraint effects. • A procedure to account for non-ideal crack profiles. Most crack assessment methods assume an idealized flaw shape such as semi-elliptical, but many real-world flaws have complex shapes.

Drilling Supporting Technology for Exploration and Development of A Marginal Oilfield

2021 ◽  
Vol 3 (8) ◽  
pp. 36-39
Author(s):  
Rui Song ◽  
◽  
Pan Wang ◽  
Zhichao Song ◽  
Tao Liu ◽  
...  
Keyword(s):  
Subsequent Development ◽  
Base Plate ◽  
Development Stage ◽  
Oil Field ◽  
Oil Fields ◽  
Efficiency Increase ◽  
Structural Fracture ◽  
Development Evaluation ◽  
Oilfield Development ◽  
Exploration And Development

Marginal oil fields refer to some small and medium-sized oil fields or oil fields with complex stratigraphic structure and located in remote areas. There are more than 100 large and small blocks marginal oil fields with huge reserves. They have the characteristics of geological reservoirs such as structural fracture, fault development and complex oil reservoirs. The development is uncertain and is not suitable for excessive investment. How to carry out economic and effective exploration and development of marginal oil fields has become a new breakthrough in stabilizing production and improving benefits in A oilfield, as the first marginal oil field with “extended test of development evaluation wells + overall development plan”, designed and manufactured three hole asymmetric underwater wellhead base plate in combination with mudline hanger in order to meet the needs of overall oilfield development, Realize the temporary abandonment of the extended test well after the test, and put it back into production in the overall development stage of the oilfield. It provides a new mode of cost reduction and efficiency increase for the subsequent development of marginal oil fields, which will revitalize a large number of marginal oil fields to be developed and bring huge economic and social benefits. The establishment of a safe risk response mode of “advance can be attacked and retreat can be defended” can improve the efficiency of preliminary research and avoid the risk of oilfield development.

scholarly journals Digital Single Market under EU political and constitutional calling: European electronic agenda’s impact on interoperability solutions

2017 ◽  
Vol 3 (1) ◽  
pp. 130-150 ◽  
Author(s):  
Joana Covelo de Abreu
Keyword(s):  
European Union ◽  
Single Market ◽  
Electronic Government ◽  
The European Union ◽  
Economic Agents ◽  
The Public ◽  
Democratic Principle ◽  
Democratic System ◽  
New Equation ◽  
Definition Of

Digital Single Market is the new political goal that promotes the creation of digital solutions to support the European Union’s evolution. It is believed to be one means by which the EU can attract investments from new IT tools’ economic agents. For that purpose, the European Unionsettled various interoperability measures so that both Member States and European institutions were able to set the example on how digital tools are important and one of Union’s goals. In this particular setting, the European Union engaged the ISA2 programme to promote interoperability solutions for Public Administrations, citizens and companies which aimed to bring more transparency to those relationships established between Public Administrations (both functional and organic European administrations) and common citizens and companies. In the medium run, interoperability solutions will provide the European Union with an e-Administration (electronic administration) which visible face will be an e-Government (electronic government) phenomenon. However, to avoid the European Union facing a degeneration based on excessive use of electronic realities, principles of proportionality, equality and non-discrimination must be used as testing principles to all measures the Digital Single Market aims to implement. In fact, a wide dissemination of IT tools in other constitutional areas – such as the definition of a democratic system and the public interest guaranteed by politics (steaming from this new equation a e-Politics) – can lead to a dangerous path, compromising society as we know it, its constitutional setting and democratic principle as they are being developed.

scholarly journals Regulatory support for the design and development of oil fields

2020 ◽  
pp. 48-55
Author(s):  
R. N. Salieva
Keyword(s):  
Legal Regulation ◽  
Oil Field ◽  
Oil Fields ◽  
Shale Formations ◽  
Field Development ◽  
Oil Field Development ◽  
Geological Conditions ◽  
Special Knowledge ◽  
Definition Of ◽  
Technical Solutions

The article presents the results of the analysis of legislation and practice of its application in the sphere of legal regulation of relations on the design of oil field development, including fields with hard‑to‑recover minerals. It is noted that the definition of «hard‑to‑recover minerals «is not fixed in the regulatory documents. To develop the concept of «hard‑to‑recover mineral deposits», it is necessary to attract special knowledge from the field of Geology, Economics of the geological industry. Signs of oil deposits (as well as other minerals) located in specific geological conditions, for example, in shale formations; at great depths in the earth’s interior, and therefore requiring special technological and technical solutions for their extraction, it is advisable to fix at the level of law. In this regard, special design rules are required for deposits containing hard‑to‑recover minerals. In order to implement the main provisions of the Energy strategy, the state should ensure systematic and comprehensive legal regulation of economic (business) relations in the field of oil production by adopting a special law.

Subtle oil fields along the Western Flank of the Cooper/Eromanga petroleum system

2015 ◽  
Vol 55 (2) ◽  
pp. 440 ◽  
Author(s):  
Mark Sales ◽  
Malcolm Altmann ◽  
Glen Buick ◽  
Claire Dowling ◽  
John Bourne ◽  
...  
Keyword(s):  
Oil Recovery ◽  
Oil Production ◽  
Oil Fields ◽  
3D Seismic ◽  
Success Rates ◽  
Reservoir Properties ◽  
Seismic Attribute ◽  
Western Flank ◽  
Definition Of ◽  
Market Capitalisation

Oil production from Cooper/Eromanga started in 1978, peaked in the 1980s and began a steady decline. Oil production from the Western Flank commenced in 2002 and has steadily increased. In the year until July 2014, a total of 8.6 million BBL of oil was produced from 16 active fields along the Western Flank, bringing the cumulative total to 24 million BBL. Western Flank oil has underpinned a ten-fold growth in market capitalisation in four listed Australian companies: Beach Energy, Drillsearch Ltd, Senex Energy and Cooper Energy. Two sandstone plays dominate the Western Flank petroleum geology: the Namur Sandstone low-relief structural play and the mid-Birkhead stratigraphic play. The use of 3D seismic has improved the definition of both plays, increased exploration success and optimised field appraisal and development drilling. Success rates have improved despite most Namur structural closures being close to the resolution margin for depth conversions (less than 8 m). Seismic attribute mapping is being refined in the more difficult search for mid-Birkhead stratigraphic traps with recent exploration discoveries indicating improved success. Reservoir properties in the Namur are excellent with multi-Darcy permeability, unlimited aquifer strength, low gas/oil ratio (GOR) and low residual oil saturation. This combination leads to an oil recovery factor greater than 75%. Initial free-flow production rates commonly exceed 6,000 BBL per a day. The mid-Birkhead reservoir is also of high quality but the lack of a strong aquifer drive reduces primary recovery. New and re-processed 3D seismic and water-flood projects are expected to drive further discoveries, reserve and production growth.

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