scholarly journals Enhanced water recovery in the coal seam gas industry using a dual reverse osmosis system

2017 ◽  
Vol 3 (2) ◽  
pp. 278-292 ◽  
Author(s):  
Dean Blair ◽  
Dominic T. Alexander ◽  
Sara J. Couperthwaite ◽  
Mariam Darestani ◽  
Graeme J. Millar
Keyword(s):  
Coal Seam ◽  
Reverse Osmosis ◽  
High Water ◽  
Water Recovery ◽  
Robust Method ◽  
Coal Seam Gas ◽  
Recovery Rates ◽  
Gas Industry ◽  
System P ◽  
Dual Stage

A robust method involving intermediate nanofiltration in a dual stage RO system to achieve high water recovery rates from coal seam water has been developed.

scholarly journals Silica fouling in coal seam gas water reverse osmosis desalination

2017 ◽  
Vol 3 (5) ◽  
pp. 911-921 ◽  
Author(s):  
L. Lunevich ◽  
P. Sanciolo ◽  
N. Milne ◽  
S. R. Gray
Keyword(s):  
Coal Seam ◽  
Reverse Osmosis ◽  
High Salinity ◽  
Coal Seam Gas ◽  
Ph Conditions ◽  
Reverse Osmosis Desalination

Silica fouling was studied in RO desalination of high salinity (30–60 g L−1 as NaCl) coal seam gas (CSG) water for a range of silica concentrations, pH conditions and dissolved aluminium concentrations.

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.

From wells to decisions—data management for coal seam gas operators in Australia as compared to conventional oil and gas operators

2011 ◽  
Vol 51 (2) ◽  
pp. 716
Author(s):  
Peter Smith ◽  
Iain Paton
Keyword(s):  
Coal Seam ◽  
Data Management ◽  
Case Studies ◽  
Oil And Gas ◽  
Data Access ◽  
Oil And Gas Industry ◽  
Coal Seam Gas ◽  
Gas Industry ◽  
Innovative Solutions ◽  
Conventional Oil

The large number of wells associated with typical coal seam gas (CSG) developments in Australia has changed the paradigm for field management and optimisation. Real time data access, automation and optimisation—which have been previously considered luxuries in conventional resources—are key to the development and operation of fields, which can easily reach more than 1,000 wells. The particular issue in Australia of the shortage of skilled labour and operators has increased pressure to automate field operations. This extended abstract outlines established best practices for gathering the numerous data types associated with wells and surface equipment, and converting that data into information that can inform the decision processes of engineers and managers alike. There will be analysis made of the existing standard, tools, software and data management systems from the conventional oil and gas industry, as well as how some of these can be ported to the CSG fields. The need to define industry standards that are similar to those developed over many years in the conventional oil and gas industry will be discussed. Case studies from Australia and wider international CSG operations will highlight the innovative solutions that can be realised through an integrated project from downhole to office, and how commercial off the shelf solutions have advantages over customised one-off systems. Furthermore, case studies will be presented from both CSG and conventional fields on how these enabling technologies translate into increased production, efficiencies and lift optimisation and move towards the goal of allowing engineers to make informed decisions as quickly as possible. Unique aspects of CSG operations, which require similarly unique and innovative solutions, will be highlighted in contrast to conventional oil and gas.

Improved calcium sulfate recovery from a reverse osmosis retentate using eutectic freeze crystallization

2013 ◽  
Vol 67 (1) ◽  
pp. 139-146 ◽  
Author(s):  
D. G. Randall ◽  
R. Mohamed ◽  
J. Nathoo ◽  
H. Rossenrode ◽  
A. E. Lewis
Keyword(s):  
Low Temperature ◽  
Reverse Osmosis ◽  
Calcium Sulfate ◽  
Crystallization Process ◽  
Eutectic Temperature ◽  
Water Recovery ◽  
Recovery Rates ◽  
Low Temperature Crystallization ◽  
Operating Temperatures ◽  
Temperature Crystallization

A novel low temperature crystallization process called eutectic freeze crystallization (EFC) can produce both salt(s) and ice from a reverse osmosis (RO) stream by operating at the eutectic temperature of a solution. The EFC reject stream, which is de-supersaturated with respect to the scaling component, can subsequently be recycled back to the RO process for increased water recovery. This paper looks at the feasibility of using EFC to remove calcium sulfate from an RO retentate stream and compares the results to recovery rates at 0 and 20 °C. The results showed that there was a greater yield of calcium sulfate obtained at 0 °C as compared with 20 °C. Operation under eutectic conditions, with only a 20% ice recovery, resulted in an even greater yield of calcium sulfate (48%) when compared with yields obtained at operating temperatures of 0 and 20 °C (15% at 0 °C and 13% at 20 °C). The theoretical calcium recoveries were found to be 75 and 70% at 0 and 20 °C respectively which was higher than the experimentally determined values. The EFC process has the added advantage of producing water along with a salt.

Process simulation of high pH reverse osmosis systems to facilitate reuse of coal seam gas associated water

2020 ◽  
Vol 8 (5) ◽  
pp. 104122
Author(s):  
Caleb Hirsimaki ◽  
John G. Outram ◽  
Graeme J. Millar ◽  
Ali Altaee
Keyword(s):  
Coal Seam ◽  
Reverse Osmosis ◽  
Process Simulation ◽  
Coal Seam Gas ◽  
High Ph

World trends and innovations in production asset management—case studies from Australia and North America

2010 ◽  
Vol 50 (2) ◽  
pp. 689
Author(s):  
Peter Goode
Keyword(s):  
Coal Seam ◽  
Asset Management ◽  
Systematic Approach ◽  
Management Plan ◽  
The Other ◽  
Coal Seam Gas ◽  
Gas Industry ◽  
Energy Company ◽  
Industry Needs ◽  
Program And Project Management

Australia is transitioning to become an energy superpower—the $43 billion Gorgon LNG project and the other comparably sized projects lining up behind the Gorgon project confirm this. There are predictions that around $80 billion of CAPEX on LNG projects will be approved for expenditure for the 2010 financial year with much more to be invested in the following years. And, we are on the cusp of further coal seam gas developments in Queensland, which could see annual production rise from 130 to more than 3,000 petajoules per annum once the infrastructure is in place. What are the skills needed to realise the true potential of these investments? An appropriate asset management plan is key. Asset management is more than the provision of maintenance services—it is about developing a systematic approach to managing an asset during its life and achieving the outputs required by the owner of the asset. Program and project management of brownfield capital works, maintenance services and infrastructure projects are also essential technical capabilities to help meet the demand of the burgeoning LNG and coal seam gas industries. These skills will determine who can deliver on schedule, or ahead of it. The other key capability will be mobilising, managing and retaining people. There is speculation that the Queensland coal seam gas industry alone will generate approximately 12,000 jobs. The industry needs to be prepared to be innovative in engaging, training and upskilling people. As the only true global resources and industrial provider in Australia, Transfield Services will share its key learnings on effectively managing assets, projects and people from its work with clients including Canada’s largest energy company, Suncor Energy.

WATER AND THE COAL SEAM GAS INDUSTRY

2007 ◽  
Vol 47 (1) ◽  
pp. 369
Author(s):  
G. Scott ◽  
C. Ammundsen
Keyword(s):  
Coal Seam ◽  
Environmental Protection Agency ◽  
Poor Quality ◽  
Gas Production ◽  
End User ◽  
Protection Agency ◽  
Coal Seams ◽  
Coal Seam Gas ◽  
Gas Industry ◽  
Access To Water

Access to water is a significant issue in Queensland as much of the State continues to be affected by a prolonged drought. Coal seam gas production involves extracting water from coal seams to reduce the groundwater pressure that keeps the methane trapped in the coal. This process produces large volumes of water. Local councils, primary producers and industrial developers are potential end users of this water; however, if the water is of poor quality, it may be unsuitable for release in the environment and for other direct beneficial uses.This paper examines the complex legislative and regulatory hurdles that need to be overcome before any mutually beneficial agreement between the coal seam gas producer and end user may be completed. It also examines an operational policy recently released by the Queensland Environmental Protection Agency that proposes a framework for the regulation and management of water extracted from coal seams.

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