improve potential use of coal seam recovery

Enhanced water recovery in the coal seam gas

Mining of brines produced in the coal seam gas industry for water and salts is of major concern globally. This study focussed on the use of a dual stage reverse osmosis system to achieve high water recovery rates. It was our hypothesis that an intermediate nanofiltration stage was required to

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Improving the CO2 well injectivity and enhanced

2009-1-7  Thus, carbon dioxide enhanced coalbed methane recovery (CO 2-ECBM) is a technology that has the potential to store large volumes of anthropogenic CO 2 in deep unminable coal formations (coalbeds), while improving the efficiency and potential profitability of coalbed methane recovery.

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Automated Coal Seam Identification Improves Drilling

2020-3-31  Dig Rates Improve in Australia. An Australian coal mine improved dig rates by more than 11% using the stratification module and Measure While Drilling (MWD) data. The strategy for a large mining conglomerate included the company-wide increase of coal production by 3 million metric tons (mt) this year through improved coal recovery.

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CO2 storage in coal to enhance coalbed methane

2019-3-29  ABSTRACT. Coal reservoirs especially deep unminable coal reservoirs, are viable geological target formations for CO 2 storage to mitigate greenhouse gas emissions. An advantage of this process is that a large amount of CO 2 can be stored at relatively low pressure, thereby reducing the cost of pumping and injection. Other advantages include the use

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Towards a Custom Made Water Product- Potential Use of ...

2016-8-18  6. Coal Seam Gas (CSG) Water Another promising application of ED is the desalination of coal seam gas water, a waste product from fracking. The Australian National Water Commission stated that the Australian CSG industry extracts more than 300 gigalitres of

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Coal seam gas extraction: modelling groundwater impacts ...

Coal seam gas is extracted from coal seams at depths generally more than 200 m below the ground surface. Coal seam gas production involves the extraction of water and gas. Hydraulic fracturing processes can be used to enhance gas productivity. Australian sedimentary basins in which coal seam gas developments typically occur comprise

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Deep seam and minesoil carbon sequestration

2019-10-15  Coal seam sequestration estimates come from an established methodology and consider the total unmined coal resource below 500 m deep with potential for carbon sequestration. The most likely effective deep seam storage capacity is 104.9 Mt carbon dioxide, taking account of reservoir conditions and engineering factors.

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Stimulation Techniques of Coalbed Methane Reservoirs

2020-7-10  Coalbed methane (CBM) plays an important role in securing world energy supply and transiting electricity generation from fossil fuel to renewables. CBM reservoirs are generally very tight and require effective stimulation to achieve economic extraction. In recent years, an increasing number of coal seam stimulation techniques were developed, but selecting the most suitable stimulation ...

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Gas Transportation and Enhanced Coalbed Methane

2021-3-12  Coalbed methane (CBM) is a potential green energy supply for addressing the worldwide energy crisis. However, the recovery of economically viable amounts of methane requires the application of production-enhancement techniques. The greater effectiveness of enhanced coalbed methane (ECBM) recovery compared to traditional pressure depletion and hydraulic stimulation techniques has been ...

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Sequestration of Carbon Dioxide in Coal with

2005-3-22  This article reviews the storage of captured CO2 in coal seams. Other geologic formations, such as depleted petroleum reservoirs, deep saline aquifers and others have received considerable attention as sites for sequestering CO2. This review focuses on geologic sequestration of CO2 in unmineable coalbeds as the geologic host. Key issues for geologic sequestration include potential

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How gas extraction can unearth cleaner energy

2020-11-23  Coal seam gas extraction has had its share of detractors. The current practices of coal-bed methane recovery cause immense damage to groundwater resources, as millions of gallons of water is being pumped from the ground to displace the methane. This contaminated water is then stored in open ponds. The way forward with geothermal energy

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Automated Coal Seam Identification Improves Drilling

2020-3-31  Dig Rates Improve in Australia. An Australian coal mine improved dig rates by more than 11% using the stratification module and Measure While Drilling (MWD) data. The strategy for a large mining conglomerate included the company-wide increase of coal production by 3 million metric tons (mt) this year through improved coal recovery.

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Towards a Custom Made Water Product- Potential Use of ...

2016-8-18  showed that brine recovery in reverse ED systems can be used successfully in energy recovery [15]. At present many desalination units are in use worldwide, a recent example is the large EU-funded plant Aigues ter Llobregat (ATLL) in Spain [16]. This plant processes over 200,000 cubic meters of water per hour and has an over 90% water recovery rate.

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Novel pre-treatment of zeolite materials for the removal ...

2017-8-27  saturated coal seam. In addition, CSG recovery results in virtually no negative impact on future extractive mining of the coal deposits (Baker and Slater 2008). The large volumes Abstract Coal seam gas (CSG) is the extraction of methane gas that is desorbed from the coal seam and brought to the surface using a dewatering and depressurisation ...

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(PDF) Coal Seam Gas in Australia: Resource Potential

Coal Seam Gas in Australia: Resource Potential and Production Issues* Jim Underschultz1, Luke Connell2, Rob Jeffery2, and Neil Sherwood2 Search and Discovery Article #80129 (2011) Posted January 18, 2011 *Adapted from oral presentation at AAPG International Conference and Exhibition, Calgary, Alberta, Canada, September 12-15, 2010 1 CSIRO, Bentley, WA, Australia

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Engineering News - Fully explore coal discard use to ...

2008-6-27  Engineering News Online provides real time news reportage through originated written,video and audio material. Each week,an average of 240 899-page impressions are generated by

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Research portfolio - Centre for Natural Gas -

Potential for improved sealing of gas wells and legacy coal wells Converting tight resources with graded particle injection in CSG stimulation: Could enable lower cost stimulations. Could enable higher recovery per well: May enable fewer wells per volume of gas (footprint) Sustainable enhancement of coal seam gas production in Queensland

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Clean Coal Technologies Carbon Capture and

Injecting carbon dioxide into deep, unmineable coal seams where it is adsorbed to displace methane is another potential use or disposal strategy. The displacement effect means that coal seam CO 2 injection could be most effective as part of the commercial production of coal seam methane (also known as coal bed methane, effectively: natural gas ...

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Application of Potential Theory to Modeling of ECBM

2011-5-7  The model must be solved by an iterative scheme, and is hence more computationally expensive than the extended Langmuir approach. The results and analysis presented in this paper demonstrate that the application of potential theory of sorption to modeling of ECBM recovery processes can improve the accuracy of calculations.

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MINING FOR HEAT

2019-4-26  To assess the potential of this resource, it is necessary to obtain from the UK Coal Authority the abandonment plans for seams within the collieries worked, and then use these to calculate the worked areas and seam thickness. The large-scale extraction of coal from the subsurface leaves voids that remain long after mine abandonment. Yet, these ...

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How gas extraction can unearth cleaner energy

2020-11-23  Coal seam gas extraction has had its share of detractors. The current practices of coal-bed methane recovery cause immense damage to groundwater resources, as millions of gallons of water is being pumped from the ground to displace the methane. This contaminated water is then stored in open ponds. The way forward with geothermal energy

Read More

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The Role of Coal Mechanical Characteristics on Reservoir ...

2020-8-20  -ECBM recovery. The results show that the harder coal seam is beneficial to primary production, while the softer coal seam results in greater CO 2 /N 2-ECBM recovery and CO 2 sequestration. N 2 and CO 2 mixture injection could be applied to balance early N 2 breakthrough and pronounced matrix swelling induced by CO 2 adsorption, and to prolong

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(PDF) Coal Seam Gas in Australia: Resource Potential

Coal Seam Gas in Australia: Resource Potential and Production Issues* Jim Underschultz1, Luke Connell2, Rob Jeffery2, and Neil Sherwood2 Search and Discovery Article #80129 (2011) Posted January 18, 2011 *Adapted from oral presentation at AAPG International Conference and Exhibition, Calgary, Alberta, Canada, September 12-15, 2010 1 CSIRO, Bentley, WA, Australia

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Stimulation Techniques of Coalbed Methane Reservoirs

2020-7-10  Over the last several decades, a series of stimulation techniques were developed to enhance tight oil and gas reservoir, including enhanced coalbed methane (ECBM) recovery [].The hydraulic techniques, such as hydraulic fracturing, hydraulic slotting, and hydraulic punching, are probably the most widely used in the ECBM, which fractures coal body and creates new cracks to improve fluid flow in ...

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Coal Exploration and Mining Geology - UNESCO

2020-8-18  Coal exploration involves finding new coal deposits. It also involves evaluating new or existing deposits to determine the quantity and quality of the coal contained within them, and to identify any geological factors that may affect the recovery and use of the coal concerned.

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Engineering News - Fully explore coal discard use to ...

2008-6-27  Engineering News Online provides real time news reportage through originated written,video and audio material. Each week,an average of 240 899-page impressions are generated by

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Coal mine methane recovery company

2019-10-15  Coal seam is a natural system that uniquely combines coal and methane. Having a low permeability in the loaded state, the coal seam does not release methane, for example, into degassing wells, and all its gas potential is revealed directly during mining, which creates a high level of danger .

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Research portfolio - Centre for Natural Gas -

Potential for improved sealing of gas wells and legacy coal wells Converting tight resources with graded particle injection in CSG stimulation: Could enable lower cost stimulations. Could enable higher recovery per well: May enable fewer wells per volume of gas (footprint) Sustainable enhancement of coal seam gas production in Queensland

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Fully explore coal discard use to improve security,

2008-6-27  Unlocking the energy potential within South Africa’s mountain of discard coal is challenging some of the country’s best brains. Besides the stockpiles of duff coal, discard coal, and slurry ...

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MINING FOR HEAT

2019-4-26  To assess the potential of this resource, it is necessary to obtain from the UK Coal Authority the abandonment plans for seams within the collieries worked, and then use these to calculate the worked areas and seam thickness. The large-scale extraction of coal from the subsurface leaves voids that remain long after mine abandonment. Yet, these ...

Read More

Read More