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Keywords: coal
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Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, November 17–19, 2020
Paper Number: SPE-202270-MS
... Abstract One of the keys to successful and environmentally responsible well stimulation programs in coal seam gas development is to establish consistent procedures for the safeguarding, planning and executing activities across multiple wells. The aim of this paper is to show how a novel...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 23–25, 2018
Paper Number: SPE-192106-MS
... shale gas complex reservoir bottom-hole pressure effective permeability contamination Upstream Oil & Gas permeability numerical simulation aquifer wellbore coal Modeling & Simulation pathway well integrity issue leakage pathway Scenario leakage pathway form well...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 23–25, 2018
Paper Number: SPE-191904-MS
... Abstract Building a representative static model for predicting and monitoring performance of coal seam gas fields presents several complex and unique challenges. The individual reservoirs possess very different coal architectures, often with highly complex seam splitting, amalgamating...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 23–25, 2018
Paper Number: SPE-191932-MS
... with CH density logging as part of a 66 well CBM development campaign. Statement of Theory and Definitions Abstract This paper presents a case study review of the performance benefits of a 66 well Coal Bed Methane (CBM) development program whereby cased-hole (CH) logging was introduced...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 23–25, 2018
Paper Number: SPE-191958-MS
... less stress in (‘weak’) coals. This relationship is reflected by abundantly conducted DFIT tests in coal and interburden of the Surat Basin ( Fig. 6 ). Interestingly where overall stress geometry is dominated by reverse stress regime DFIT analyses result in closure pressures more than 1psi/ft - note...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 23–25, 2018
Paper Number: SPE-191963-MS
...Recent drilling in the North-Patchawarra Trough Key wells in the study are shown in Figure 3 and summarised in Table 1 . Two of these wells were drilled as unconventional tests of the Basin Centred Gas (BCG) concept with Washington-1 testing tight Permian sandstones and coals and Silver...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 17–19, 2017
Paper Number: SPE-186912-MS
... Numerous efforts have been made to determine the key parameters that control coal bioavailability. Characteristics like low thermal maturity ( Fakoussa & Hofrichter, 1999 ; Orem & Finkelman, 2004 ; Rice & Claypool, 1981 ; Robbins et al., 2016 ; Scott, 1999 ) and enriched liptinite...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 17–19, 2017
Paper Number: SPE-186438-MS
... Abstract Past drilling of vertical and moderately deviated development wells in offshore Peninsular Malaysia and Vietnam has proven to be challenging. Drilling experience in the development wells highlighted the issue of wellbore instability in the respective areas, particularly though coal...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 17–19, 2017
Paper Number: SPE-186413-MS
... Abstract The Surat Basin Coal Seam Gas (CSG) is maturing from exploration to production to meet sales targets for several Liquefied Natural Gas projects. This requires effective and predictable reservoir performance that is controlled by permeability, gas saturation and matching the well...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, October 25–27, 2016
Paper Number: SPE-182466-MS
...Theory of the Unipore and the Bidisperse Model Diffusion observed in coal is typically approximated using models based on Fick's second law of diffusion for spherically symmetric flow ( Clarkson and Bustin, 1999b ). Both, unipore models, assuming a uniform pore size distribution...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, October 25–27, 2016
Paper Number: SPE-182177-MS
... Abstract Drilling and stimulation of exploration and development wells in the Cooper Basin, Central Australia, has been challenging over the decades due to the high-pressure, high-temperature environment, the high stress anisotropy, and the presence of thick coals. Most of the wells drilled...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, October 25–27, 2016
Paper Number: SPE-182178-MS
.... The stress anisotropy is considered to be the reason for preferential wellbore failure in sands instead of shaly siltstones. The stresses in interlayered thick coals tend to be near isotropic. It is also thought that the stress regime is not necessarily uniform with depth; the maximum horizontal stress...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 20–22, 2015
Paper Number: SPE-176422-MS
... on their Sanga Sanga license in East Kalimantan, Indonesia. Both wells passed through soft shales and coals that exhibited breakouts in offset wells, in addition to heavily depleted zones exhibiting large fluid losses in an area well known for shallow gas blowouts. Geomechanical analysis of information from...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 20–22, 2015
Paper Number: SPE-176297-MS
... Abstract The production process of coalbed methane (CBM) includes desorption, diffusion and seepage, and the production is controlled by these three processes together. The permeability of coal reservoir is generally low. To increase the coalbed methane production, well stimulation needs...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, October 14–16, 2014
Paper Number: SPE-171400-MS
... due to geological, cost and regulatory factors. The price response to the contracting supply of conventional oil will lead to price-driven substitution of liquid fossil fuels by natural gas and synthetic fuels from coal, in turn enhancing the economics of nuclear energy in the electric power market...

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