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Proceedings Papers

Paper presented at the SPE Hydraulic Fracturing Technology Conference and Exhibition, May 4–6, 2021
Paper Number: SPE-204190-MS
... Abstract The Walloons coal measures located in Surat Basin (eastern Australia) is a well-known coal seam gas play that has been under production for several years. The well completion in this play is primarily driven by coal permeability which varies from 1 Darcy or more in regions...
Proceedings Papers

Paper presented at the ISRM AfriRock - Rock Mechanics for Africa, October 3–5, 2017
Paper Number: ISRM-AFRIROCK-2017-090
... Roof failures in underground coal mines remain a major threat to safe working conditions and can lead to devastating consequences such as a significant impact on the production of coal. The Magdalena Colliery in Dundee, South Africa currently mines two seams; the upper Alfred seam and the lower...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-062
... Abstract: Aiming at the problem of gas control in mining process of deep well and high gas low permeability coal seam group, raise the method of surface well, cross-measure boreholes in bed plate tunnel, gas drainage from holes along roof strike and goaf drainage pipe. According...
Proceedings Papers

Paper presented at the The Twelfth International Offshore and Polar Engineering Conference, May 26–31, 2002
Paper Number: ISOPE-I-02-434
... ABSTRACT Recognizing seam deviation properly is the basis of vision-based seam tracking. The traditional methods of image recognition show poor robustness when they are used for real-time recognition in welding environment. In this paper, artificial neural networks are used to recognize real...
Proceedings Papers

Paper presented at the The 28th U.S. Symposium on Rock Mechanics (USRMS), June 29–July 1, 1987
Paper Number: ARMA-87-1107
... ABSTRACT Research into ground control problems resulting from the mining of seams in close proximity has been carried out using finite element and body-loaded photoelastic modeling methods in conjunction with statistical and empirical analysis of numerous case studies. As a result...
Proceedings Papers

Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, October 17–19, 2022
Paper Number: SPE-210628-MS
... Abstract Low permeability, naturally fractured reservoirs such as coal seam gas (CSG, coalbed methane or CBM) and shale gas reservoirs generally require well stimulation to achieve economic production rates. Coupling hydraulic fracturing and micro-proppant or graded particle injections (GPI...
Proceedings Papers

Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, October 17–19, 2022
Paper Number: SPE-210647-MS
... Abstract Horizontal boreholes have been routinely applied to coal seams as a cost-effective way to maximize coal seam gas production. However, these wells can encounter severe instability issues during field development due to significant horizontal stress loss and change in deviatoric stresses...
Proceedings Papers

Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, October 17–19, 2022
Paper Number: SPE-210661-MS
... Abstract The intrinsic heterogeneous nature of Coal Seam Gas (CSG) reservoirs can significantly diminish the expected return. This paper presents a new method to decrease inherent investment risk by delineating permeability and provides illustrative case studies. The approach identified riskier...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, October 17–19, 2022
Paper Number: SPE-210682-MS
..., the permeability prediction is difficult for coal seam gas (CSG) reservoirs due to the presence of complex geological conditions which cause the lateral and vertical heterogeneity on the coal seam. The objective of this study is to present a practical petrophysical approach where the estimation of coal...
Journal Articles
Journal: SPE Journal
SPE J. 27 (05): 3218–3239.
Paper Number: SPE-209791-PA
Published: 12 October 2022
... and production water-rock reactivity models. Sensitivity to production water composition and temperature was also tested. Coal seam gas (CSG) reservoir interburden ranged from clay-rich mudstones to interlaminated sandstone and mudstone, and calcite cemented sandstones. The coal seam interburden samples...
Includes: Supplementary Content
Journal Articles
Journal: SPE Journal
SPE J. 27 (03): 1633–1647.
Paper Number: SPE-208404-PA
Published: 16 June 2022
...Vanessa Santiago; Ayrton Ribeiro; Raymond Johnson, Jr; Suzanne Hurter; Zhenjiang You Summary Hydraulic fractures can enhance well productivity from stress-sensitive naturally fractured reservoirs, such as coalbed methane or coal seam gas (CSG) reservoirs. Graded proppant injection (GPI) has been...
Proceedings Papers

Paper presented at the Offshore Technology Conference Asia, March 22–25, 2022
Paper Number: OTC-31671-MS
...-conformances happened during longitudinal weld seam repair at the manufacturing stage. The notification has put PETRONAS on high alert as the affected linepipes have already been installed and commissioned as part of gas pipelines i.e. Pipeline 1 and Pipeline 2 supplying to onshore customer. This paper...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3594656
... We present a new approach for estimating the S-wave velocity of the fractured coal seam in the vicinity of the underground roadway. We use so-called roadway mode – the dispersive wave which propagates close to the roadway sidewall. To better understand the complex seismic wavefield generated...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Asia Pacific Unconventional Resources Technology Conference, November 16–18, 2021
Paper Number: URTEC-208298-MS
... Abstract To maximize the coal seam gas production, it is critical to use geosteering to maintain the drill bit within coal seams. The gamma ray log is usually used as the coal/noncoal indicator to maintain the drill bit; however, the gamma ray log is a lagging indicator because its sensors...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Asia Pacific Unconventional Resources Technology Conference, November 16–18, 2021
Paper Number: URTEC-208271-MS
..., a large-scale numerical simulation model is developed using porous medium approach to simulate the L-CRIP process in a deep coal seam. First, to get a better understanding of the chemical process in UCG, a series of thermogravimetry (TG) tests are conducted. Then, nine chemical reactions including coal...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Asia Pacific Unconventional Resources Technology Conference, November 16–18, 2021
Paper Number: URTEC-208336-MS
... set of information for better understanding what may occur in the reservoir during gas depletion. coal seam gas experimental apparatus international journal gas bubble coalbed methane water salinity strain gauge under-water condition complex reservoir gas desorption experiment matrix...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Asia Pacific Unconventional Resources Technology Conference, November 16–18, 2021
Paper Number: URTEC-208353-MS
.... This paper discusses the spatial asymmetry of coal properties and investigates the impact of including spatial asymmetry on flow simulations representing coal seam gas production. modeling & simulation reservoir characterization coalbed methane upstream oil & gas asymmetry function coal...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Asia Pacific Unconventional Resources Technology Conference, November 16–18, 2021
Paper Number: URTEC-208388-MS
... Abstract The potential for gas loss in inclined coal seams has economic implications in terms of lost resource; potential environmental implications, in terms of gas migration away from the well; and socio-economic implications in terms of the potential to impact groundwater users in gas...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Asia Pacific Unconventional Resources Technology Conference, November 16–18, 2021
Paper Number: URTEC-208404-MS
... Abstract Hydraulic fractures can enhance well productivity from stress sensitive naturally fractured reservoirs such as coalbed methane or coal seam gas (CSG) reservoirs. Graded proppant injection (GPI) has been proposed to enhance long-term, far-field interconnectivity between the created...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Asia Pacific Unconventional Resources Technology Conference, November 16–18, 2021
Paper Number: URTEC-208399-MS
... Abstract Hydrocarbon extraction from coal seam gas (CSG) reservoirs relies on horizontal drilling and completions. However, the drilling of horizontal wells usually faces challenges as inappropriate equivalent circulating density (ECD) can induce borehole collapse. Hence, the optimisation...

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