Mainstream Options For Heavy Oil: Part I-Cold Production

Chugh, S.; Baker, Richard; Telesford, Arthur Linus; Zhang, E.

doi:10.2118/97-99

Cited by 11 publications

(17 citation statements)

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“…Repeated, high-frequency transgressions across the Lloydminster coastal environment have resulted in the deposition of nine thinly bedded, discrete sand formations (Chugh et al, 2000).…”

Section: Geology Backgroundmentioning

confidence: 99%

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A data mining approach to finding relationships between reservoir properties and oil production for CHOPS

Cai

Wang

et al. 2014

Computers & Geosciences

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“…Repeated, high-frequency transgressions across the Lloydminster coastal environment have resulted in the deposition of nine thinly bedded, discrete sand formations (Chugh et al, 2000).…”

Section: Geology Backgroundmentioning

confidence: 99%

“…The intentional sand production along with the oil leads to the presence of wormholes, which are high-porosity, high-permeability zones in a reservoir (Mai et al, 2009). The generation and growth of wormholes are believed to enhance oil recovery (Chugh et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

A data mining approach to finding relationships between reservoir properties and oil production for CHOPS

Cai

Wang

et al. 2014

Computers & Geosciences

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“…Researchers continue to study foamy oil from microscopic to macroscopic behaviour in order to identify the mechanisms involved (1)(2)(3)(4) . The purpose is that this understanding could lead to new directions for a more optimised plan of heavy oil recovery from a reservoir, particularly cold primary production by solution gas drive.…”

Section: Foamy Oil Experimentsmentioning

confidence: 99%

“…The phenomena have not yet been fully explained, although some attempts have been made since 1990, when the first reports were made. Good reviews have been published (1)(2)(3)(4) , and their reference lists can guide the reader to many more. Additionally, other work certainly remains within the restricted access of internal company reports or conference proceedings with limited circulation, so are not in full public domain.…”

Section: Introductionmentioning

confidence: 99%

A Water-Based Analogue Model for Foamy Oil Experiments

Mitchell

Mellowes

Dawe

2003

JCPT

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“…Of this amount, nearly 75% is composed of heavy crude and bitumen (including bitumen produced at mining plants). In-situ heavy-oil and bitumen production has more than doubled from 56 000 m 3 /d to more than 165 000 m 3 /d in the last 25 years [Chugh et al 1997;National Energy Board (NEB) 2008].…”

Section: Introductionmentioning

confidence: 99%

Sand on Demand: A Laboratory Investigation on Improving Productivity in Horizontal Wells Under Heavy-Oil Primary Production

Meza-Diaz

Sawatzky

Kuru

et al. 2011

SPE Production &Amp; Operations

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Summary The cold-production recovery process, also known as cold heavy-oil production with sand (CHOPS), is a method for enhancing primary heavy-oil production by aggressively producing sand (massively and persistently). It is a successful commercial recovery process in western Canada using vertical (or slanted or deviated) wells. Applications of cold-production technology with aggressive sand production in horizontal wells, however, have not met with commercial success. This paper presents the results of experiments performed to assess the feasibility of applying cold heavy-oil production with horizontal wells using less-aggressive (i.e., controlled) sand-production strategies. Specifically, the effects of slot size, confining stress, fluid velocity, and sand-grain sorting on sand production have been investigated. Preliminary results indicate that slot-size selection is critical for establishing "sand on demand." For proper slot-size selection, it is essential to know the grain-size distribution of the sand—in particular, attributes such as the size of the coarsest fraction of the sand and the sorting (uniformity coefficient) of the sand. For example, it was observed in the sand-production experiments that the critical pressure gradient for maintaining continuous sand production is much lower for well-sorted sands (narrow size distribution) than for poorly sorted sands (wide size distribution). Ultimately, poorly sorted sands may require criteria different from those for well-sorted sands for slot-size selection. Flow rates are also crucial for managing sand production because a critical pressure gradient is required for initiating sand production and maintaining continuous sand production. The critical pressure gradient decreases as the slot width or confining pressure increases. Large permeability increases were observed in the sand-production region. Persistent sand production led to the growth of a channel and/or the presence of a dilated zone that had an elliptic shape.

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Mainstream Options For Heavy Oil: Part I-Cold Production

Cited by 11 publications

References 0 publications

A data mining approach to finding relationships between reservoir properties and oil production for CHOPS

A data mining approach to finding relationships between reservoir properties and oil production for CHOPS

A Water-Based Analogue Model for Foamy Oil Experiments

Sand on Demand: A Laboratory Investigation on Improving Productivity in Horizontal Wells Under Heavy-Oil Primary Production

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