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Keywords: coal seam
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Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 23–25, 2018
Paper Number: SPE-192017-MS
... Abstract In this paper, a fracture mechanics model that deals with fracture growth in layered low-permeability rocks is presented and applied to hydraulic fracturing stimulation of coal seam gas reservoirs. The model uses the conventional pseudo-3D treatment by which the vertically planar...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 23–25, 2018
Paper Number: SPE-192114-MS
... percent of total lateral length) was achieved using effective geo-steering techniques and geological modelling. The laterals were successfully geo-steered to intersect a vertical well completed open hole over the producing coal seam sections. The well pair is produced via the vertical well only where...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 23–25, 2018
Paper Number: SPE-191958-MS
... the overburden gradient is 1psi/ft or less. Abstract Walloons Coals of the Surat Basin, Queensland (Australia) contain world class Coal Seam Gas (CSG) plays, where permeability varies from high (>1Darcy), due to Gaussian curvature-related natural fracture connectivity, to low (<1mD) due...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 23–25, 2018
Paper Number: SPE-191866-18APOG-MS
... Abstract The operator's strategy is to maximise economic upstream gas production by drilling technically-mature sustaining wells in depleted areas of Surat basin in Queensland, Australia. To date the operator has drilled more than 2800 Coal seam gas wells with minimal well control issues. Historically...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 17–19, 2017
Paper Number: SPE-186370-MS
... Abstract Since the coal seam is soft with low permeability in China, the stimulation effect of vertical well hydraulic fracturing technology is limited while horizontal well fracturing has instable wellbore leading to wellbore collapsing. Therefore, floor horizontal well hydraulic fracturing...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, October 25–27, 2016
Paper Number: SPE-182460-MS
... and the potential consequences to groundwater resources. This comprehensive review included Australian and international literature on onshore conventional oil and gas wells, water bores, coal seam gas wells and coal exploration bores. Failure mechanisms and rates were discussed for the entire well life cycle...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, October 25–27, 2016
Paper Number: SPE-182300-MS
... Abstract The operator’s exploration of natural gas in coal seams within the Gloucester Basin, New South Wales (NSW), Australia presents technical challenges accessing and producing the gas economically while meeting stringent environmental standards. These standards are more stringent than...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, October 14–16, 2014
Paper Number: SPE-171538-MS
... eventually been used to improve the production forecasting. In particular, pressure data confirmed that aquifer activity was limited and pointed out a typical multi-layer with cross-flow production response which is consistent with the known geology on Fairview (alternating coal seams of contrasted...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 22–24, 2013
Paper Number: SPE-165774-MS
... blind pore. well logging pore structure china university log analysis gas production laboratory unimodal complex reservoir shale gas reservoir coal seam reservoir spectra society of petroleum engineers upstream oil & gas tight gas sand coalbed methane reservoir relaxation time...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 22–24, 2012
Paper Number: SPE-158297-MS
... to define coal seam permeability and its relation to stress. Since the DFIT operational procedure is similar to the author's SRT procedure employed in coal seams, the authors decided to apply the DFIT analysis interpretation technique to analyse SRT data with the purpose to obtain permeability...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, September 20–22, 2011
Paper Number: SPE-147828-MS
... Abstract Drill Stem Testing (DST) is a primary means of evaluating skin and permeability of exploration and appraisal wells. It is no exception in the case of Coal Seam Gas (CSG) reservoirs. A modified form of DST is routinely used by the CSG industry in this region (Queensland, Australia...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 18–20, 2010
Paper Number: SPE-133901-MS
... with extensive coal seam gas development experience to pursue aggressive short term reserve growth targets. Plans were in place to install PCP completions in the vertical wells and tie the wells into a pre-installed water and gas gathering system as soon as the first horizontal well was drilled...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 18–20, 2010
Paper Number: SPE-135814-MS
... the work of the author in published in1983 (SPE 12514). The approach presented is mathematically based with reference to field examples and laboratory work. These include measurements of stress and permeability. The application of the work is in establishing how the permeability of a coal seam will vary...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, April 17–19, 2001
Paper Number: SPE-68663-MS
... Abstract In fluvio-deltaic sediments of East Kalimantan, Indonesia, coal commonly occurs and poses serious problems in reservoir evaluations. Thick coal seams can easily be identified, but it is often difficult to identify and quantify coal within sandstones using the conventional well logs...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 16–18, 2000
Paper Number: SPE-64493-MS
... in several wells of the Peat field to assess the effectiveness of this technique in terms of: (1) production enhancement and cost reduction; (2) location of the coal-seam intervals in the gas cap (i..e. gas-saturated coals) and; (3) improved completion efficiency. To minimise the effects of tortuosity...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 12–14, 1998
Paper Number: SPE-50061-MS
... Abstract Three propped hydraulic fractures, placed in coal seams from vertical wells, were recently mapped as the coal mine workings passed through the site of the wells. The fractures were propped with sand and, in each case, the geometry of the propped fracture was mapped during mining...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference, October 28–31, 1996
Paper Number: SPE-36986-MS
... Abstract Relative permeability is a primary parameter for determining the reservoir behaviour of coal seams. We present numerous relative permeability curves measured in the laboratory as well as curves from numerically matching field performance. Viscous fingering provides an explanation...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference, October 28–31, 1996
Paper Number: SPE-36982-MS
... An integrated program of characterisation, stimulation, and post-stimulation trial production has been completed in three coal seams intersected by two HQ-size (96 mm diameter) boreholes located adjacent to Appin Colliery in NSW. Data on stress, seam permeability and pressure, formation mechanical properties...

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