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Keywords: observation well
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Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5159-MS
... in the traced wells were grouped together and injected with unique tracers. Tracers allow for identification of fracture communication pathways between segments of the source well and the neighboring observation wells. Water-based CFT data retrieved at the observation wells was processed to analyze...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2648-MS
... observation das aperture pressure distribution displacement discontinuity production control hydraulic fracturing fracture shape observation well upstream oil & gas displacement discontinuity method vertical monitoring well fracture strain rate hydraulic fracture fiber optic strain response...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-1144-MS
... observation well surface seismic source fracture seismic reflection image 1David Langton, Devon Energy 2Dan Kahn, Formally Devon Energy 3Biran Fuller, Sterling Seismic & Reservoir Services Devon Internal URTeC: 1144 Seismic Reflection Imaging with Active Sources and Microseismic Events Recorded on...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-233-MS
... from pressure response at an observation well to significant rate changes at an active well, such as a shut-in (SI) or bring-online (BOL). The process is called a pressure interference test (PIT). PITs are widely used in conventional reservoirs to determine inter-well reservoir properties (Kamal, 1983...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-312-MS
... conductivity ranges from 1140 – 1630 md*ft at early time of well life to 525 – 855 md*ft after 100 – 139 days in production, or about 45% to 61% reduction among these wells. The second method uses time-lag of pulse interference response between an active and an observation well. With assumptions of low, mid...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 24–26, 2017
Paper Number: URTEC-2670716-MS
... ratio. Since the fiber extends all the way to the surface, DAS measurements of the overburden as well as the reservoir can be obtained. sensitivity das monitoring microseismic event microseismic data Reservoir Characterization observation well amplitude sensor event location...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 24–26, 2017
Paper Number: URTEC-2691531-MS
... three component geophones deployed in a nearby observation well. Whatever the acquisition type the processing requires a velocity model in order to locate the microseismic activity. Despite the numerous velocity data usually available - such as check shot VSP, sonic logs, or seismic stack velocities...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 24–26, 2017
Paper Number: URTEC-2695282-MS
... Summary Distributed Acoustic Sensing (DAS) optical fiber for downhole geophysical measurements is a fairly new technology the industry is utilizing to better characterize hydraulic stimulations. Data were acquired with a vertical observation well that was instrumented externally with dual and...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, August 1–3, 2016
Paper Number: URTEC-2432330-MS
... observation well observation fracture proppant distribution largest fracture fracture fracture geometry reservoir URTeC: 2432330 Breakthrough in Hydraulic Fracture & Proppant Mapping: Achieving Increased Precision with Lower Cost Matthew Dawson* 1, 2, Günther Kampfer 2 Reveal Energy Services 1...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, August 1–3, 2016
Paper Number: URTEC-2461795-MS
... gauge, while each of the four un-fractured monitoring wells had hydraulically isolated high-resolution permanent P/T gauges installed in eight layers. Data from the center well and from the thirty-two observation wells gauges have been studied to improve our understanding of reservoir characteristics...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2015
Paper Number: URTEC-2154968-MS
... Summary The canonical monitoring geometry for hydraulic fracturing processes consists of a horizontal treatment well and a roughly parallel observation well that contains an array of acoustic sensors. This is a cost-effective method because it allows for relatively high-resolution monitoring...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2015
Paper Number: URTEC-2176465-MS
..., along with completion data including tracers to better understand completions, geomechanical rock properties, and well spacing. Upstream Oil & Gas mechanism Reservoir Characterization information observation well microseismic data high fidelity microseismic data acquisition completion...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2015
Paper Number: URTEC-2154645-MS
... both time and space variant. We show a real data example where microseismic events were recorded using a 40 level array of 3-component downhole seismic sensors in an observation well straddling the treatment zone in depth. The observed microseismic event gathers exhibit shear wave splitting even at the...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, August 12–14, 2013
Paper Number: URTEC-1575448-MS
..., layering, etc.) A comprehensive data gathering exercise and a reservoir characterization study has been in progress since the start of 2012 at a pilot pad. The pilot includes three horizontal producers and a horizontal observation well. Downhole pressure and temperature, DTS, chemical tracer, microseismic...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, August 12–14, 2013
Paper Number: URTEC-1619968-MS
...) technology to gain a more complete understanding of the resulting stimulation treatment and identify further optimization opportunities. DAS has many applications, and this paper will consider two particular cases in combination with micro-seismic data acquired by geophones in an observation well: When...

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