More bang for your buck: optimising CSG extraction to achieve increased project value

2016 ◽  
Vol 56 (1) ◽  
pp. 75 ◽  
Author(s):  
Nick Allison
Keyword(s):  
Large Scale ◽  
Oil And Gas ◽  
Integrated Approach ◽  
Commodity Price ◽  
Oil Field ◽  
Production Model ◽  
Economic Resource ◽  
Fully Integrated ◽  
Unit Energy ◽  
Gas Market

Recent challenges within Australia’s oil and gas market have placed increased pressure on Australia’s CSG industry to reel-in burgeoning project costs. In a tight commodity price environment, developments need to extract greater value from projects. This paper outlines an innovative approach to CSG gathering system design by leveraging the digital oil field approach, utilising technology to rapidly optimise design, reduce design costs and optimise the development processes behind economic resource extraction aimed at ultimately delivering increased project value. In the past few years a step-change has been made in the optimisation of the engineering design model, with expanded concept level design, FEED-less design, and partially automated detailed design being executed on gathering system projects now being adopted. This was a step towards a fully integrated approach of the digital oil field. Through this process, it has become apparent that this methodology can be extended further through the targeted optimisation of the production model used in the establishment of CSG projects. This will enable increased revenue for a project. Field production profiles for both gas and water can be developed from preliminary reservoir assessment data. Using cost data for materials and installation, various scenarios can be assessed to optimise production volumes, surface infrastructure configuration, and total volume extracted on a dollar margin per unit energy basis. The optimisation measures explored in this paper are most critical to reservoir locations with a low drainage area per well, where reservoir drainage is maximised by refinement of the configuration of above-ground infrastructure. This has the potential to translate to a more optimised network, and greater profitability in the development of large-scale CSG fields.

Gravity and Magnetic Methods

2000 ◽  
Author(s):  
Richard M. Carruthers ◽  
John D. Cornwell
Keyword(s):  
Large Scale ◽  
Gravity Data ◽  
Integrated Approach ◽  
Rock Properties ◽  
Magnetic Data ◽  
Satellite Gravity ◽  
Fully Integrated ◽  
Continental Shelves ◽  
Gravity And Magnetic ◽  
Gravity And Magnetic Data

Lateral variations in the density and magnetization of the rocks within the crust give rise to "anomalies" in the Earth's gravity and magnetic fields. These anomalies can be measured and interpreted in terms of the geology both in a qualitative sense, by mapping out trends and changes in anomaly style, and quantitatively, by creating models of the subsurface which reproduce the observed fields. Such interpretations are generally less definitive in themselves than the results from seismic surveys (see chapter 12), but the data are widely available and can provide information in areas where other methods are ineffective or have not been applied. As the different geophysical techniques respond to specific rock properties such as density, magnetization, and acoustic velocity, the results are complementary, and a fully integrated approach to data collection and interpretation is generally more effective than the sum of its parts assessed on an individual basis. Gravity and magnetic data have been acquired, at least to a reconnaissance scale, over most of the world. In particular, the release into the public domain of satellite altimetry information (combined with improved methods of data processing) means that there is gravity coverage to a similar standard for most of the offshore region to within about 50 km of the coast. Magnetic anomalies recorded from satellites provide global coverage, but the high altitude of the observations means that only large-scale features extending over many 10s of kilometers are delineated. Reconnaissance aeromagnetic surveys with flight lines 10-20 km apart provide a lateral anomaly resolution similar to that of the satellite gravity data. Oceanographic surveys undertaken by a variety of academic and research institutions are another valuable source of data in remote regions offshore which supplement and extend the more detailed coverage obtained over the continental shelves, for example, by oil companies in areas of hydrocarbon interest. Surveys over land vary widely in terms of acquisition parameters and quality, but some form of national compilation is available from many countries. A number of possible applications of the potential field (i.e., gravity and magnetic) data follow from the terms set out by UNCLOS. Paragraph 4(b) of article 76 states, "In the absence of evidence to the contrary, the foot of the continental slope is to be determined as the point of maximum change in the gradient at its base" (italics added).

A new way to predict sediment production and deposition: integrated Source to Sink maps at pluri-basins-scale

2021 ◽  
Author(s):  
Alexandre Ortiz ◽  
Charlotte Fillon ◽  
Eric Lasseur ◽  
Justine Briais ◽  
Francois Guillocheau ◽  
...  
Keyword(s):  
Cross Sections ◽  
Large Scale ◽  
Oil And Gas ◽  
Research Work ◽  
Integrated Approach ◽  
Source Tracking ◽  
Reservoir Properties ◽  
Surface Evolution ◽  
Sediment Routing ◽  
Source To Sink

<h3>The knowledge acquired on the exhumation of the Pyrenean chain and the evolution of the adjacent foreland basins makes this Alpine-type domain a good laboratory to better constrain a full sediment routing system in a compressive context and to apprehend the driving processes controlling the sediment routing in space and time. This integrated approach aims at enhancing our basin mastering approach as well as improving our predictions of reservoir properties for oil and gas exploration and storage.</h3><h3>This Source-to-Sink study seeks to understand the evolution of sedimentary routing from the Source (orogenic relief, craton, basin recycling) through the transfer zone (peripheral or internal to the basin) to the final sink (flexural basin, deep turbiditic margin). Within the framework of this new cartography, we propose to compile the available and newly acquired data from the S2S project (TOTAL, BRGM), over the entire peri-Pyrenean domain. We produced large scale quantitative and qualitative maps and wheeler diagrams to better observe and interpret the tectonic, climatic and surface processes impacts of the SRS behavior.</h3><h3>The maps include kinematic reconstructions of the Iberian-European-Mediterranean system, restored sequential cross-sections, history/magnitude of exhumation by thermochronology, source tracking, characterization of weathering and erosion surfaces, synthesis of the major structural accidents activity, paleogeographic reconstructions, analysis of sedimentary geometries and transport directions as well as the quantification of volumes preserved in the basins. Their interpretation is combined with a time representation along the routing system, linking classical basin wheeler diagram representation to source erosion and lithologies to obtain a continuous view on the sediment journey.</h3><h3>The time steps chosen for these 5 maps account for the different stages of tectono-sedimentary evolution of the peri-Pyrenean system at the early-orogenic, syn-orogenic and post-orogenic stages. The compilations carried out compare exhumed domains and sedimentation zones in terms of fluxes and volumes and make it possible to map the routing systems and discuss the drivers for the surface evolution during the construction/destruction cycle of an orogen.</h3><h3> </h3><h3>Research work financed and carried out as part of the BRGM-TOTAL Source-to-Sink program</h3><p> </p>

scholarly journals OIL & GAS INDUSTRY IN BRAZIL: A BRIEF HISTORY AND LEGAL FRAMEWORK

2018 ◽  
Vol 1 (1) ◽  
pp. 223-252
Author(s):  
Laís Palazzo Almada ◽  
Virgínia Parente
Keyword(s):  
Large Scale ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Legal Framework ◽  
Energy Sources ◽  
Gas Industry ◽  
Production Sharing ◽  
Salt Layer ◽  
Gas Market ◽  
Oil Gas

The recently announced discovery of potential large-scale reserves in the Brazilian so called pre-salt layer has resulted in a new legal framework for the country. In this new architecture, old and new regulation share the legal arena. Exploring this context, this paper provides an overview of the emergence and evolution of the oil and gas market in Brazil, and discusses the new legal configuration where the prevailing Concession System co-exists with the Production Sharing System and the Onerous Assignment. The conclusion pinpoints the challenges that the country faces in dealing with two energy sources –oil and gas— that will play an increasing role in Brazil’s future. It also indicates that the introduction of competition also has brought new features and improvements to oil and gas industry in Brazil. Structuring a robust legal framework that will foster the necessary investments is not only a challenge for the Brazilian economy, but also one that has to be tackled by many emergent economies with newly hydrocarbon discoveries.

scholarly journals OIL & GAS INDUSTRY IN BRAZIL: A BRIEF HISTORY AND LEGAL FRAMEWORK

2018 ◽  
Vol 1 (1) ◽  
pp. 223-252
Author(s):  
Laís Palazzo Almada ◽  
Virgínia Parente
Keyword(s):  
Large Scale ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Legal Framework ◽  
Energy Sources ◽  
Gas Industry ◽  
Production Sharing ◽  
Salt Layer ◽  
Gas Market ◽  
Oil Gas

The recently announced discovery of potential large-scale reserves in the Brazilian so called pre-salt layer has resulted in a new legal framework for the country. In this new architecture, old and new regulation share the legal arena. Exploring this context, this paper provides an overview of the emergence and evolution of the oil and gas market in Brazil, and discusses the new legal configuration where the prevailing Concession System co-exists with the Production Sharing System and the Onerous Assignment. The conclusion pinpoints the challenges that the country faces in dealing with two energy sources –oil and gas— that will play an increasing role in Brazil’s future. It also indicates that the introduction of competition also has brought new features and improvements to oil and gas industry in Brazil. Structuring a robust legal framework that will foster the necessary investments is not only a challenge for the Brazilian economy, but also one that has to be tackled by many emergent economies with newly hydrocarbon discoveries.

scholarly journals Development of the digital oil and gas complex in Arctic areas of Russia

2021 ◽  
Vol 1201 (1) ◽  
pp. 012075
Author(s):  
A N Dmitrievskiy ◽  
N A Eremin ◽  
A T Kondratyuk ◽  
I K Basnieva
Keyword(s):  
Large Scale ◽  
Oil And Gas ◽  
Cost Optimization ◽  
Research Work ◽  
Digital Technologies ◽  
Integrated Approach ◽  
Climatic Conditions ◽  
Gas Production ◽  
Capital Productivity ◽  
Gas Fields

Abstract This article examines the issues of digital modernization of the oil and gas complex of Russia, the evolution of digital oil and gas technologies. The main results of research work in the field of creating digital technologies for preventing complications and accidents, transferring drilling data in blockchain format, monitoring the state of pipelines using magnetic tomography are briefly outlined. The digital modernization strategy is aimed at large-scale digitalization of oil and gas production facilities and lays a reliable basis for the growth of capital productivity of fields in the long term. The approach is based on improving the quality of management, analyzing the effectiveness of control actions when using an integrated model or a digital twin of the field. The integrated application of digital technologies for effective management is the basis for cost optimization, ensuring the transition to robotic control, and increasing the capital productivity ratio of key gas assets. These solutions are especially effective in regions with difficult natural and climatic conditions or undeveloped infrastructure, Arctic fields. The proposed integrated approach makes it possible to extend the periods of profitable exploitation of gas fields at the stage of declining production and complicated production conditions. By the end of 2025, the number of digital fields using technologies for processing Big Geo Data will exceed 10% of the total number of oil and gas fields in Russia.

scholarly journals Towards an integrated approach to emergency management: interdisciplinary challenges for research and practice

2015 ◽  
Vol 7 (3) ◽  
pp. 524-540 ◽  
Author(s):  
Christian Webersik ◽  
Jose J Gonzalez ◽  
Julie Dugdale ◽  
Bjørn Erik Munkvold ◽  
Ole-Christoffer Granmo
Keyword(s):  
Emergency Management ◽  
Citizen Participation ◽  
Disaster Preparedness ◽  
Large Scale ◽  
Oil And Gas ◽  
Integrated Approach ◽  
Management Approach ◽  
Cultural Determinants ◽  
Organization Science ◽  
Information And Communication

This article presents an interdisciplinary vision for large-scale integrated emergency management that has been inspired by the transition from platform centric to integrated operations in the oil and gas fields, which uses remote emergency control centres collaborating virtually with local responders. The article discusses some of the most salient research challenges for integrated emergency management, including the role of mobile technology, human-centred sensing, citizen participation and social media, and the socio-cultural determinants of disaster management. The purpose of this article is to frame an integrated emergency management approach that adopts a multi-disciplinary approach, including human computer interaction, information systems, computer science, development studies and organization science employing different methodologies.Most importantly, we need to better understand the socio-cultural determinants of how people prepare to, respond and perceive disasters, in order to evaluate whether and what kind of information and communication technology (ICT) support is appropriate. There is need for more research as to why in some regions local people ignore official orders to evacuate, and rather follow the advice of local leaders, elders or religious leaders. In other instances, disasters are seen as ‘acts of God’ thus shaping disaster preparedness and response.

scholarly journals Full three-dimensional relocation and tomographic inversion of the 1977-2008 earthquakes in north-eastern Italy: a feasibility study

2013 ◽  
Vol 56 (1) ◽  
Author(s):  
Aldo Vesnaver ◽  
Luca Urpi
Keyword(s):  
Oil And Gas ◽  
Three Dimensional ◽  
Active Surface ◽  
Integrated Approach ◽  
3D Models ◽  
Earth Model ◽  
Fully Integrated ◽  
North Eastern ◽  
1D Model ◽  
Well Data

<p>In a regional seismological network, the estimation of the epicenter is usually robust, especially for events inside or close to the network boundaries. In contrast, the hypocentral depth is very sensitive to the assumed velocity field. In this study, we compare the hypocenter estimates obtained by a classical algorithm in a simple one-dimensional (1D) model with a recently developed full 3D model that is based on shrinking grids. This study is preliminary, as the 3D Earth model is based on limited data from the literature; however, it demonstrates that different patterns show up when a more representative geological model is adopted. This encourages further studies, based on fully integrated 3D models from active surface seismic, well data and other geophysical measurements. Such an integrated approach has been successfully adopted by the oil and gas industries for decades, which has increased the exploration success rate and the production of hydrocarbon reservoirs.</p>

scholarly journals Importance of Velocity Deviation Technique and Negative Secondary Porosity in Detection of Hydrocarbon Zones in Khasib Formation, East Baghdad Oil Field

2021 ◽  
Vol 54 (2E) ◽  
pp. 86-103
Author(s):  
Bashar Al-Juraisy
Keyword(s):  
Large Scale ◽  
Oil And Gas ◽  
Oil Field ◽  
Clear Correlation ◽  
Low Velocity ◽  
Secondary Porosity ◽  
Sonic Log ◽  
Velocity Deviation ◽  
Primary Porosity ◽  
Porosity Analysis

The velocity deviation technique is one of the important techniques in hydrocarbon investigations, through which it is possible to identify the types and the content of rock pores. The current study aimed to demonstrate the benefit of this technique in discovering the oil sites of the Khasib formation in the East Baghdad oil field, as well as the possibility of separating the oil and gas zones by combining the velocity deviation technique with the anomalous primary porosity information that leads to negative secondary porosity. In this study, log data of three wells distributed in the study area (EB-04, EB-16, and EB-34) were used. From these data, the velocity was estimated by the sonic log, the porosity was estimated by the neutron and the density log, while the velocity deviation was determined by subtracting the velocity calculated from the density log from the sonic log velocity. The result showed that there is significant agreement between the secondary porosity values that turned positive after the oil effect was removed and the confirmed oil zones derived from the core information. Also, there was a clear correlation between velocity deviation values above -500 m/s and the permeability zone of formation, which may reflect the importance of this technique in the identification of the permeability zone. Both techniques (Velocity Deviation and log porosity analysis) can be correlated to predict the locations of gas, large-scale fractures, and unconsolidated beds in sites of high negative secondary porosity and low-velocity deviation (under -500 m/s).

Ensuring Australia's competitiveness in the global oil and gas market

2011 ◽  
Vol 51 (2) ◽  
pp. 707
Author(s):  
Peter Goode
Keyword(s):  
Large Scale ◽  
Oil And Gas ◽  
Capital Expenditure ◽  
Global Scale ◽  
North West ◽  
The People ◽  
Highly Skilled ◽  
Working Together ◽  
Gas Market

There is an estimated $200 billion worth of capital expenditure presently planned for Australian gas projects. These projects provide the potential for $20 billion worth of engineering and maintenance opportunities for Australian companies and an estimated 16,000 ongoing positions in the sector. The scale of these projects has drawn international attention and is increasingly drawing global competition. Australian companies are at risk of the misperception that they don’t have the international know-how or the people to compete for these large-scale projects. We need to ensure that our Australian ingenuity and scale continue to position us as the service provider of choice for construction, project management and maintenance opportunities. Working together with industry, we have shown that we have what it takes to compete on a global scale. We also need to work with government and unions to ensure we have scalable highly-skilled people available to support these projects. This presentation will consider the following case study: Transfield Services delivers services to companies including Woodside Energy, which operates the A$27 billion North West Shelf project, one of the world’s largest LNG production facilities with an output of 16.4 million tonnes of LNG a year. While expansion continues, ongoing brownfield project and maintenance services demand the ongoing support of a highly-skilled workforce of up to 1,000 people. This case study explores: innovative service solutions in a resource-scarce environment through access to global resources innovative scheduling of work; and, the challenges of sourcing and retaining highly-skilled people by improving the opportunities for global and domestic employee mobility and investing in training and developing local people.

scholarly journals Well log data super-resolution based on locally linear embedding

2021 ◽  
Vol 76 ◽  
pp. 63
Author(s):  
Jian Han ◽  
Pan Gao ◽  
Zhimin Cao ◽  
Jing Li ◽  
Sijie Wang ◽  
...  
Keyword(s):  
Large Scale ◽  
Oil And Gas ◽  
Super Resolution ◽  
Oil Field ◽  
Locally Linear Embedding ◽  
Well Log ◽  
Log Data ◽  
Oil And Gas Resources ◽  
Linear Embedding ◽  
Locally Linear

Unconventional remaining oil and gas resources such as tight oil, shale oil, and coalbed gas are currently the focus of the exploration and development of major oil fields all over the world. Therefore, to make best understand of target reservoirs, enhancing the vertical resolution of well log data is crucial important. However, in the face of the continuous low-level fluctuations of international oil price, large scale use of expensive high resolution well logging hardware tools has always been unaffordable and unacceptable. In another aspect, traditional well log interpolation methods can always not realize high reliable information enhancement for crucial high frequency components. In this paper, in order to improve the well log data super-resolution performance, we propose for the first time to employ Locally Linear Embedding (LLE) technique to reveal the nonlinear mapping relationship between 2-times-scale-difference well log data. Several super resolution experiments with well log data from a given area of Daqing Oil field, China, were conducted. Experimental results illustrated that the proposed LLE-based method can efficiently achieve more reliable super-resolution results than other state-of-the-art methods.

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