scholarly journals The quantitative prediction of tectonic fractures of Longmaxi formation in Dingshan area, southeastern Sichuan Basin

2019 ◽  
Vol 23 (2) ◽  
pp. 157-162 ◽  
Author(s):  
Jiatong Xie ◽  
Qirong Qin ◽  
Cunhui Fan ◽  
Dongfeng Hu ◽  
Hu Li
Keyword(s):  
Oil And Gas ◽  
Rock Fracture ◽  
Quantitative Prediction ◽  
Fracture Density ◽  
Longmaxi Formation ◽  
North West ◽  
Main Research ◽  
Oil And Gas Exploration ◽  
The North ◽  
Fracture Development

Tectonic fractures are a significant factor for production of the Longmaxi formation in Dingshan area. The analyse of the distribution and development degree of tectonic fractures is the main research method in present-day. Based on the data of field outcrops and borehole core, the new method-binary method is put forward by rock fracture and energy value to decide tectonic fracture development. According to the method the fitting formula is offered between the relation of the value of rock fracture, energy and the fracture density. Compared the fracture density predictive value and the observed value of 15 wells, all wells relative error less than 25%. The prediction results are accurate. According to the fitting formula of fracture development and distribution in the study area are obtained. The results show that the fracture density is high as a whole of the Longmaxi formation in Dingshan area. Whole shows by south east to gradually reduce the trend of the north west. Supported the future of the oil and gas exploration to provide geological basis and guidance in Dingshan area.

Geothermal condition and outlook for oil and gas deposits in the north-west Black Sea shelf

2002 ◽  
Vol 8 (2-3) ◽  
pp. 206-208
Author(s):  
V.G. Osadchyi ◽  
◽  
O.A. Prykhod'ko ◽  
I.I. Hrytsyk ◽  
◽  
...  
Keyword(s):  
Black Sea ◽  
Oil And Gas ◽  
North West ◽  
The North ◽  
West Black Sea

scholarly journals Static Geological Modelling with Knowledge Driven Methodology

Energies ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3802
Author(s):  
Jun Li ◽  
Xiaoying Zhang ◽  
Bin Lu ◽  
Raheel Ahmed ◽  
Qian Zhang
Keyword(s):  
Case Studies ◽  
Oil And Gas ◽  
Fracture Network ◽  
Depositional Environments ◽  
Soft Data ◽  
Oil And Gas Exploration ◽  
Hard Data ◽  
The North ◽  
Geological Modelling ◽  
Exploration And Production

Geological modelling is an important topic of oil and gas exploration and production. A new knowledge driven methodology of geological modelling is proposed to address the problem of “hard data” limitation and modelling efficiency of the conventional data driven methodology. Accordingly, a new geological modelling software (DMatlas) (V1.0, Dimue, Wuhan, China) has been developed adopting a grid-free, object-based methodology. Conceptual facies models can be created for various depositional environments (such as fluvial, delta and carbonates). The models can be built largely based on geologists’ understandings with “soft data” such as outcrops analysis and geological maps from public literatures. Basic structures (fault, folds, and discrete fracture network) can be easily constructed according to their main features. In this methodology, models can be shared and re-used by other modelers or projects. Large number of model templates help to improve the modelling work efficiency. To demonstrate the tool, two case studies of geological modelling with knowledge driven methodology are introduced: (1) Suizhong 36-1 field which is a delta depositional environment in Bohai basin, China; (2) a site of the north Oman fracture system. The case studies show the efficiency and reliability within the new methodology.

Pioneering Li-ion batteries on an offshore platform

2018 ◽  
Vol 58 (2) ◽  
pp. 719
Author(s):  
Lourens Jacobs ◽  
Nancy Nguyen ◽  
Ryan Beccarelli
Keyword(s):  
Power Generation ◽  
Gas Turbine ◽  
Oil And Gas ◽  
Generation System ◽  
Spinning Reserve ◽  
Fuel Gas ◽  
North West ◽  
The North ◽  
Li Ion ◽  
Power Generation System

Woodside is an Australian oil and gas company and a leading global operator of offshore gas platforms and onshore LNG processing facilities. It is a public company listed on the Australian Securities Exchange headquartered in Perth, Western Australia. Woodside operates the Goodwyn A gas platform on behalf of the North West Shelf (NWS) Project. Woodside assessed Li-ion battery technology and considered the technology mature and ready to be utilised on offshore and onshore operating assets. Woodside operates dedicated islanded gas turbine power generation at each of its onshore and offshore facilities. It was concluded that a large battery energy storage solution (BESS) can deliver several advantages if connected to such an islanded power generation system. The most significant benefit materialises by using a BESS as backup (or spinning reserve) for the gas turbine generators (GTGs). Woodside decided to pioneer the Li-ion BESS technology in a first of its kind application on the NWS Project offshore Goodwyn A gas platform. The Goodwyn A BESS is designed for a 1 MW power and 1 MWh energy capacity, which is considered sufficient to provide the spinning reserve for the Goodwyn A platform. Currently, Goodwyn A operates four 3.2 MW GTGs to provide a typical load of 7–8 MW, with one GTG providing the N+1 spinning reserve. When the BESS is connected to the power generation system, Goodwyn A will operate three GTGs, with the BESS proving the backup in case one of the GTGs trip. The BESS will provide the full 1 MW for a minimum of 1 h, which will give the operators enough time to start the standby GTG or adjust the facility loads (load shedding). The result will be a decrease in overall fuel gas consumption (due to better efficiencies on the remaining GTGs in operation) and a related reduction in CO2 emissions. The project supports the overall objective of the North West Shelf Project to improve the energy intensity of its facilities by 5% by 2020. Woodside believes that developing capability and experience on the installation of BESSs, using Goodwyn A as an early adopter, will facilitate similar and larger installations on other Woodside operated offshore and onshore assets. This is one of the technologies Woodside believes will play an important role to ensure a lower carbon future globally.

Earthquake risk management for oil and gas infrastructure in the north west of Australia

2020 ◽  
Vol 60 (2) ◽  
pp. 588
Author(s):  
Meysam Banimahd ◽  
Steve Tyler ◽  
Matthew Kuo ◽  
Fiona Chow
Keyword(s):  
Risk Management ◽  
Emergency Response ◽  
Failure Modes ◽  
Oil And Gas ◽  
Significant Risk ◽  
Earthquake Risk ◽  
North West ◽  
The North ◽  
Management Procedures ◽  
Integrity Management

The July 2019 magnitude 6.6 earthquake 200 km offshore from Broome is a recent reminder of the significant risk that earthquakes pose to oil and gas infrastructure in Australia. Unlike tropical cyclones, there are no reliable methods for predicting the timing, location and magnitude of imminent earthquakes. Appropriate risk management is therefore required, together with the implementation of emergency response and integrity management procedures, to manage the potential impacts to health, safety, process safety, the environment and production. Given the concentration of oil and gas infrastructure in the north west of Australia, a collaborative approach is advantageous for earthquake risk management and emergency response measures. This paper shares Woodside’s earthquake risk and integrity management procedures with the aim of enabling appropriate quality and consistency throughout the industry. The paper reviews state-of-the-art international practice in earthquake risk management for critical infrastructure from design to operation. Applicable seismic design criteria, likely failure modes and performance requirements are also described. Woodside’s real-time earthquake alert and integrity management systems are presented. Recommendations are made on best practice for earthquake risk management in the region and areas for further collaboration and improvement within the industry.

Recent exploration results in the Lower Triassic, Bedout Sub-basin: Australia's next petroleum province?

2018 ◽  
Vol 58 (2) ◽  
pp. 871 ◽  
Author(s):  
Melissa Thompson ◽  
Fred Wehr ◽  
Jack Woodward ◽  
Jon Minken ◽  
Gino D'Orazio ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Lower Triassic ◽  
Effective Porosity ◽  
Petroleum System ◽  
Source Rocks ◽  
Commercial Development ◽  
North West ◽  
The North ◽  
Productive Potential ◽  
Detailed Interpretation

Commencing in 2014, Quadrant Energy and partners have undertaken an active exploration program in the Bedout Sub-basin with a 100% success rate, discovering four hydrocarbon accumulations with four wells. The primary exploration target in the basin, the Middle Triassic Lower Keraudren Formation, encompasses the reservoirs, source rocks and seals that have trapped hydrocarbons in a self-contained petroleum system. This petroleum system is older than the traditional plays on the North-West Shelf and before recent activity was very poorly understood and easily overlooked. Key reservoirs occur at burial depths of 3500–5500 m, deeper than many of the traditional plays on the North-West Shelf and exhibit variable reservoir quality. Oil and gas-condensate discovered in the first two wells, Phoenix South-1 and Roc-1, raised key questions on the preservation of effective porosity and productivity sufficient to support a commercial development. With the acquisition and detailed interpretation of 119 m of core over the Caley Member reservoir in Roc-2 and a successful drill stem test that was surface equipment constrained to 55 MMscf/d, the productive potential of this reservoir interval has been confirmed. The results of the exploration program to date, combined with acquisition of new 3D/2D seismic data, have enabled a deeper understanding of the potential of the Bedout Sub-basin. A detailed basin model has been developed and a large suite of prospects and leads are recognised across a family of hydrocarbon plays. Two key wells currently scheduled for 2018 (Phoenix South-3 and Dorado-1) will provide critical information about the scale of this opportunity.

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 Late Cretaceous basin development of the southern Danish Central Graben

1969 ◽  
Vol 20 ◽  
pp. 15-18
Author(s):  
Finn Jakobsen ◽  
Claus Andersen
Keyword(s):  
Late Cretaceous ◽  
Oil And Gas ◽  
Seismic Inversion ◽  
Gas Production ◽  
Structural Development ◽  
Oil Accumulation ◽  
Oil And Gas Production ◽  
North West ◽  
The North ◽  
Basin Development

The Danish oil and gas production mainly comes from fields with chalk reservoirs of Late Cretaceous (Maastrichtian) and early Paleocene (Danian) ages located in the southern part of the Danish Central Graben in the North Sea. The area is mature with respect to exploration with most chalk fields located in structural traps known since the 1970s. However, the discovery by Mærsk Oil and Gas A/S of the large nonstructurally and dynamically trapped oil accumulation of the Halfdan Field in 1999 north-west of the Dan Field (e.g. Albrechtsen et al. 2001) triggered renewed exploration interest. This led to acquisition of new high quality 3-D seismic data that considerably enhanced imaging of different depositional features within the Chalk Group. Parallel to the endeavours by the operator to locate additional non-structural traps in porous chalk, the Geological Survey of Denmark and Greenland took advantage of the new data to unravel basin development by combining 3-D seismic interpretation of a large number of seismic markers, well log correlations and 2-D seismic inversion for prediction of the distribution of porous intervals in the Chalk Group. Part of this study is presented by Abramovitz et al. (in press). In the present paper we focus on aspects of the general structural development during the Late Cretaceous as illustrated by semi-regional time-isochore maps. The Chalk Group has been divided into two seismically mappable units (a Cenomanian–Campanian lower Chalk Unit and a Maastrichtian–Danian upper Chalk Unit) separated by a distinct basin-wide unconformity.

scholarly journals Epidemiological Situation on Tick-Borne Borreliosis in the Russian Federation in 2019 Compared to the Period of 2002–2018

2020 ◽  
pp. 131-138
Author(s):  
S. A. Rudakova ◽  
N. A. Pen’evskaya ◽  
A. I. Blokh ◽  
D. A. Savel’ev ◽  
O. E. Teslova ◽  
...  
Keyword(s):  
Russian Federation ◽  
Federal District ◽  
Effective Control ◽  
North Caucasus ◽  
North West ◽  
Main Research ◽  
The North ◽  
Federal Districts ◽  
The Russian Federation ◽  
Epidemiological Situation

Objective: to analyze the epidemiological situation on Ixodidae tick-borne borreliosis in the Russian Federation in 2019 in comparison with the period of 2002–2018.Materials and methods. The paper uses the data contained in Form No. 2 of the state statistical reporting for 2002–2019 and information obtained by the Reference Center for Monitoring Borreliosis of the Omsk Research Institute of Natural Focal Infections from 74 constituent entities of Russia in 2019. The main research method is epidemiological one with the use of modern information technologies.Results and discussion. In Russia, 8048 cases of tick-borne borreliosis (Lyme disease – LD) were recorded (5.48 0/0000) in 2019. The actual indicators of the LD incidence for the whole country and federal districts (FD) in 2019 were within the confidence limits predicted with linear regression based on the study of the dynamics of the epidemic process in 2002–2018 in the vast majority of cases. A steady upward trend in the LD incidence was observed during 2002–2019 in the Central Federal District due to 10 out of 18 entities (Moscow, Belgorod, Lipetsk, Moscow, Bryansk, Voronezh, Kursk, Ryazan, Tambov, Tula regions); in the Southern Federal District because of the Krasnodar Territory and the Volgograd Region; in the North Caucasus Federal District – because of the Stavropol Territory. Despite the fact that a downward trend in the incidence of LD has been established over the past 18 years in the North-West, Volga and Ural Federal Districts, in some subjects of these regions a trend towards an aggravation of the epidemiological situation is observed (the Komi Republic and Chuvashia, Penza Region). In the absence of a pronounced tendency to change in the incidence rate of LD in the Siberian and Far Eastern Federal Districts, Kemerovo Region-Kuzbass, the Republic of Tuva and the Trans-Baikal Territory where a growing trend has been identified require special attention. In the Ural and Siberian Federal Districts, the share of non-erythema forms among laboratory-confirmed cases of LD was higher than in other regions, which merits further study of the genome-specific features of borrelia populations and their carriers. Effective control of the LD epidemiological situation in Russia is possible provided that the control is improved and maintained, and the capacity of preventive measures and zoological-entomological monitoring of the activity and structure of the natural foci of LD is enhanced in the entities with the long-term tendency towards increase in the incidence of the disease. 

scholarly journals A performance management model addressing human factors in the North West provincial administration

2019 ◽  
Vol 17 ◽  
Author(s):  
Kezell Klinck ◽  
Sonia Swanepoel
Keyword(s):  
Service Delivery ◽  
Human Factors ◽  
Performance Management ◽  
Performance Improvement ◽  
North West ◽  
Main Research ◽  
The North ◽  
Managerial Implications ◽  
Provincial Administration ◽  
Improved Performance

Orientation: The article investigated factors from several perspectives using human resources-related issues of governance, legislation, regulation, organisation, administration and communication, workplace sociology variables pertaining to social and psychological relationships and several other factors that have an impact on the complex matrix of determinants for performance improvement in the public service.Research purpose: This article explored the human factors linked to the performance management (PM) processes and its impact on the effectiveness of service delivery in the North West provincial administration (NWPA). The article isolated the strengths and weaknesses of the system of performance assessment from the human relations perspective, technical usage, the structural–organisational and the strategic perspectives, uniformity, legislative compliance and other possibilities envisaged and emerging.Motivation for the study: The study would deliver a successful and carefully crafted PM model that could be used to remedy the current performance situation through improved and effective communication channels, as well as ongoing feedback, leading to a more productive and motivated workforce. This would ultimately yield improved service delivery for the citizens of the North West Province.Research approach/design and method: To answer the main research questions, sub-questions and objectives of this study, several participants (permanent employees and managers) found in the departments within the NWPA had to respond to diverse instruments of inquiry (questionnaires, interview schedules, expert, operational, strategic and grass-roots opinion, etc.). The study took a sequential mixed-methods approach where interpretivist (qualitative) and positivist (quantitative) approaches were applied as the philosophy and descriptive statistics were used.Main findings: The main findings highlighted all the human factors that mitigated against performance improvement in the NWPA. From the evidence gathered, some departments exhibited problematic manager–subordinate relationships, lack of training, no proper feedback, low staff morale leading to low job satisfaction, lack of leadership as well as broken channels of communication.Practical/managerial implications: The findings revealed that it is important for the NWPA management to undertake the necessary efforts in order to adapt a new strategy and comprehensive model for improved performance, which would ultimately lead towards efficient and effective service delivery in the North West Province.Contribution/value-add: This paper explores the salient human factors to be taken into consideration during performance management in the North West Provincial Administration.

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