Gas Industry Estimates Of Unconventional Gas Production 1980-2000

1980 ◽  
Author(s):  
G.H. Lawrence ◽  
O.C. Davis ◽  
H.R. Linden ◽  
B.S. Lee ◽  
B. Schlesinger ◽  
...  
Keyword(s):  
Gas Production ◽  
Unconventional Gas ◽  
Gas Industry

scholarly journals Unconventional gas: shale gas and coal seam gas

2014 ◽  
Vol 126 (2) ◽  
pp. 27
Author(s):  
Sandra Kentish ◽  
Vaughan Beck
Keyword(s):  
Shale Gas ◽  
Alternative Energy ◽  
Gas Production ◽  
Gas Shale ◽  
Unconventional Gas ◽  
Gas Industry ◽  
Project Report ◽  
Alternative Energy Sources ◽  
Australian Council ◽  
Future Project

The Australian Council of Learned Academies (ACOLA1), Securing Australia’s Future, Project 6 report, entitled Engineering energy: unconventional gas production, explored the scientific, social, cultural, technological, environmental and economic issues surrounding alternative energy sources, with particular reference to shale gas production. The project was one of a series of strategic research projects for the Prime Minister’s Science, Engineering and Innovation Council. The project report made 51 key findings considering the potential technological, environmental, social and economic impacts of an Australian shale gas industry. Recommendations arising from the report were developed by the Office of the Chief Scientist in consultation with relevant government departments. The symposium presentation was based on the ACOLA project report.

scholarly journals Unconventional Gas Production from Hydraulically Fractured Well-An Application of Direct Search Based Optimization Algorithm

2019 ◽  
Vol 8 (2S11) ◽  
pp. 2726-2737
Keyword(s):  
Objective Function ◽  
Fracture Propagation ◽  
Gas Production ◽  
Production Model ◽  
Tight Gas ◽  
Gas Reservoirs ◽  
Unconventional Gas ◽  
Fracture Geometry ◽  
Propagation Behavior ◽  
Fractured Well

Unconventional gas reservoirs are now the targets for meeting the demand for gas. These reservoirs are at the depth of more than 10,000 ft (even over 15000 depth as well) and are difficult to be exploited by conventional methods. For the last decades hydraulic fracturing has become the tool to develop these resources. Mathematical models (2D and pseudo-3D) have been developed for fracture geometry, which should be realistically created at the depth by surface controllable treatment parameters. If the reservoir rock is sandstone, then proppant fracturing is suitable and if the rock is carbonates, then acid fracturing is applicable. In both cases, proper design of controllable treatment parameters within constraints is essential. This needs proper optimization model which gives real controllable parametric vales. The model needs the most important analyses from geomechanical study and linear elastic fracture mechanics of rock containing unconventional gas so that fracture geometry makes maximum contact with the reservoirs for maximum recovery. Currently available software may lack proper optimization scheme containing geomechanical stress model, fracture geometry, natural fracture interactions, real field constraints and proper reservoir engineering model of unconventional gas resources, that is, production model from hydraulically fractured well (vertical and horizontal). An optimization algorithm has been developed to integrate all the modules, as mentioned above, controllable parameters, field constraints and production model with an objective function of maximum production (with or without minimization of treatment cost). Optimization is basically developed based on Direct Search Genetic and Polytope algorithm, which can handle dual objective function, non-differentiable equations, discontinuity and non-linearity. A dual objective function will meet operator’s economic requirements and investigate conflict between two objectives. The integrated model can be applied to a vertical or horizontal well in tight gas or ultra-tight shale gas deeper than over 10,000 ft. A simulation (with industrial simulators) was conducted to investigate and analyse fracture propagation behavior, under varying parameters with respect to the fracture design process, for tight gas reservoirs. Results indicate that hydraulic fracture propagation behavior is not uninhibited in deep reservoirs as some may believe that minor variations of variables such as in-situ stress, fluid properties etc. are often detrimental to fracture propagation in some conditions. Application of this model to a hypothetical tight and ultra-tight unconventional gas formations indicates a significant gas production at lower treatment cost; whereas the resources do not flow without any stimulation (hydraulic fracturing).

Case Study of Condensate Dropout Effect in Unconventional Gas/Condensate Reservoirs with Hydraulically Fractured Wells

2022 ◽  
Author(s):  
Ali H. Alsultan ◽  
Josef R. Shaoul ◽  
Jason Park ◽  
Pacelli L. J. Zitha
Keyword(s):  
Gas Production ◽  
Gas Condensate ◽  
Dew Point ◽  
Productivity Index ◽  
Large Reservoir ◽  
Unconventional Gas ◽  
Gas Condensate Reservoirs ◽  
Liquid Saturation ◽  
Reservoir Volume ◽  
Fracture Performance

Abstract Condensate banking is a major issue in the production operations of gas condensate reservoirs. Increase in liquid saturation in the near-wellbore zone due to pressure decline below dew point, decreases well deliverability and the produced condensate-gas ratio (CGR). This paper investigates the effects of condensate banking on the deliverability of hydraulically fractured wells producing from ultralow permeability (0.001 to 0.1 mD) gas condensate reservoirs. Cases where condensate dropout occurs over a large volume of the reservoir, not only near the fracture face, were examined by a detailed numerical reservoir simulation. A commercial compositional simulator with local grid refinement (LGR) around the fracture was used to quantify condensate dropout as a result of reservoir pressure decline and its impact on well productivity index (PI). The effects of gas production rate and reservoir permeability were investigated. Numerical simulation results showed a significant change in fluid compositions and relative permeability to gas over a large reservoir volume due to pressure decline during reservoir depletion. Results further illustrated the complications in understanding the PI evolution of hydraulically fractured wells in "unconventional" gas condensate reservoirs and illustrate how to correctly evaluate fracture performance in such a situation. The findings of our study and novel approach help to more accurately predict post-fracture performance. They provide a better understanding of the hydrocarbon phase change not only near the wellbore and fracture, but also deep in the reservoir, which is critical in unconventional gas condensate reservoirs. The optimization of both fracture spacing in horizontal wells and well spacing for vertical well developments can be achieved by improving the ability of production engineers to generate more realistic predictions of gas and condensate production over time.

Beneficial use of associated water in the Queensland coal seam gas industry

2010 ◽  
Vol 50 (2) ◽  
pp. 686
Author(s):  
Cristian Purtill
Keyword(s):  
Water Management ◽  
Coal Seam ◽  
Single Mode ◽  
Gas Production ◽  
Management Policy ◽  
Coal Seam Gas ◽  
Gas Industry ◽  
Beneficial Use ◽  
Challenges And Opportunities ◽  
Water Management Strategy

The Queensland Government has developed an associated water management policy that, among other things, strives to maximise the beneficial use of associated water derived from Queensland’s burgeoning coal seam gas industry. The Department of Infrastructure and Planning reports that domestic gas production alone (i.e. without an export LNG market) will produce on average 25 GL per annum in the next 25 years. Most of this water has sufficiently high total dissolved solids and other water quality issues to require some form of treatment prior to use. Clearly, the relatively large volumes of water present both challenges and opportunities to the communities in which the CSG industry is developing. In line with the philosophy of beneficial use of associated water, Santos has developed a portfolio of options within its associated water management strategy and plans for its Arcadia Valley, Fairview and Roma tenements. The strategy seeks to: provide enduring value for the community; maximise benefits while minimising the environmental footprint; provide a range of alternatives to avoid single-mode failure; use scalable options in response to uncertainty; deploy demonstrated technologies; and, meet and exceed all regulatory requirements. This paper will set some context around the broader CSG industry’s associated water challenges, and identify what parameters must be considered in arriving at beneficial uses for the water. The paper then explores some of Santos’ approaches to associated water management.

Streamline, standardise, or specialise? Frameworks for regulation of unconventional resources in Australia

2014 ◽  
Vol 54 (1) ◽  
pp. 361
Author(s):  
Richard Brockett
Keyword(s):  
Regulatory Reform ◽  
Gas Production ◽  
Project Delivery ◽  
Gas Industry ◽  
The Sustainable Development ◽  
Land Access ◽  
Unconventional Resources ◽  
Global Demand ◽  
Regulatory Approach

The growth in domestic and global demand for energy has encouraged the development of new and innovative sources of energy. In Australia, the coal seam gas (CSG) industry has been in the vanguard of these advances with significant investment already in place to develop major CSG projects in Queensland. This rapid rise has highlighted the potential for other unconventional resources with proponents now exploring for new resources, such as shale gas, across Australia. Governments have generally attempted to support the development of these new industries. Regulatory reform has addressed the bespoke regulatory issues presented by unconventional gas production particularly in respect of water, land access and co-existence with other industries. Despite this the onshore gas industry continues to face political uncertainty, community division and divergent regulatory responses. Industry has consistently called for regulatory reforms to address duplication, remove unnecessary costs and improve approval processes to speed project delivery and enhance project returns while maintaining robust environmental protection obligations. State and Federal governments have responded to these calls for action in varying ways. While there is much to approve of in each of these processes each presents specific issues and risks that must be considered before they are implemented or more broadly adopted. Therefore, the question arises: What is the best long-term regulatory approach for the sustainable development of Australia’s unconventional resources? This paper reviews existing Australian regulatory approaches and analyses how regulators, industry and the community can work together to develop and implement a regulatory framework that achieves their respective objectives.

Unconventional gas: local supply, global implications

2011 ◽  
Vol 51 (2) ◽  
pp. 679
Author(s):  
Craig McMahon
Keyword(s):  
North America ◽  
Gas Production ◽  
Coal Bed ◽  
Unconventional Gas ◽  
Policy Makers ◽  
The North ◽  
Local Supply ◽  
Sharp Growth ◽  
Gas Market ◽  
The Impact

The sharp growth in unconventional gas production in North America has turned the gas market on its head. Unconventional gas (coal bed methane, tight gas and shale gas) is present in large volumes throughout the world—it offers the potential to continue to reshape global gas dynamics. Many expect the North America experience of sharp unconventional gas growth to be repeated elsewhere and are forecasting the perpetuation of a global gas surplus. Is this likely? We consider the impact of its development, identify some of the issues that will constrain its growth and address some of the implications for upstream suppliers, resource holders, buyers and policy makers. No post-Conference paper or slides are available for this presentation.

Shaping the decommissioning landscape of tomorrow

2020 ◽  
Vol 60 (2) ◽  
pp. 537
Author(s):  
Andrew Taylor
Keyword(s):  
Service Sector ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Gas Production ◽  
Industry Growth ◽  
Gas Industry ◽  
Oil And Gas Production ◽  
Research Organisations ◽  
Growth Centres

Associated with the growth of Australia’s oil and gas industry over the past 40 years, our oceans currently host oil and gas production and transportation infrastructure that will cost ~AU$30 billion to decommission. National Energy Resources Australia (NERA) is one of six industry growth centres (IGC) funded by the Australian Government. NERA is investigating opportunities for transforming the way that Australia manages its upcoming decommissioning activities. In 2019, NERA undertook a series of stakeholder consultations to refresh our understanding of Australia’s decommissioning outlook. Feedback was received through more than 20 interviews and follow-up surveys with the service sector, operators, research organisations, regulators and consultants. This paper highlights the outcomes of this review and NERA’s view on opportunities to position Australia favourably to manage decommissioning in a way that maximises benefits.

Plug and Abandonment Environment in British Columbia

2019 ◽  
Author(s):  
Majid Bizhani ◽  
Élizabeth Trudel ◽  
Ian Frigaard
Keyword(s):  
British Columbia ◽  
Fractured Reservoirs ◽  
Horizontal Wells ◽  
Gas Production ◽  
Vertical Wells ◽  
Gas Industry ◽  
Testing Procedures ◽  
The Past ◽  
Production Wells ◽  
Well Abandonment

Abstract British Columbia (BC) has a significant oil & gas industry, with approximately 25,000 wells drilled in the province since the early 1900s. In the past few decades, the industry has changed from a balanced oil & gas production to activities dominated by unconventional gas production which is recovered by hydraulic fracturing. Concurrently, since 2000 there has been a shift from isolated vertical wells to pad-drilled horizontal wells. The older well stock at end-of-life combines with horizontal production wells and fractured reservoirs, the consequence of which is a growing wave of abandonment in BC, building over the next decade. This paper reviews the existing data on BC wells, as it is relevant to well abandonment operations. This includes the well architectures, trajectories, depths, testing procedures, etc.

Erosion of Elbows in Oil and Gas Production Systems

2012 ◽  
Vol 479-481 ◽  
pp. 1129-1132
Author(s):  
Wang Ming Bo
Keyword(s):  
Oil And Gas ◽  
Production Systems ◽  
Oil And Gas Industry ◽  
Gas Production ◽  
Gas Industry ◽  
Oil And Gas Production ◽  
Sand Erosion ◽  
The Subject ◽  
Erosion Mechanisms ◽  
Definitive Methods

This paper gives an overview of erosion mechanisms in elbows in oil and gas production systems. The nature of the erosion process itself makes it very difficult to develop some definitive methods or models to prevent or predict the erosion in elbows in all conditions. This paper provides a review of the subject which will help petroleum engineers to handle the erosion problems in oil and gas industry. This review is given of different erosion mechanisms connected with sand erosion and the factors that influence them, and then the review goes on to look at particulate erosion in elbows in more details. Conclusions are then drawn based on the above analyses.

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