Enhancing recovery and sensitivity studies in an unconventional tight gas condensate reservoir

Abstract The recovery factor from tight gas reservoirs is typically less than 15%, even with multistage hydraulic fracturing stimulation. Such low recovery is exacerbated in tight gas condensate reservoirs, where the depletion of gas leaves the valuable condensate behind. In this paper, three enhanc...

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Autores principales: Min Wang, Shengnan Chen, Menglu Lin
Formato: article
Lenguaje:EN
Publicado: KeAi Communications Co., Ltd. 2018
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Acceso en línea:https://doaj.org/article/0093eacadf094343ab06a849dd2bf5e1
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spelling oai:doaj.org-article:0093eacadf094343ab06a849dd2bf5e12021-12-02T03:08:46ZEnhancing recovery and sensitivity studies in an unconventional tight gas condensate reservoir10.1007/s12182-018-0220-71672-51071995-8226https://doaj.org/article/0093eacadf094343ab06a849dd2bf5e12018-03-01T00:00:00Zhttp://link.springer.com/article/10.1007/s12182-018-0220-7https://doaj.org/toc/1672-5107https://doaj.org/toc/1995-8226Abstract The recovery factor from tight gas reservoirs is typically less than 15%, even with multistage hydraulic fracturing stimulation. Such low recovery is exacerbated in tight gas condensate reservoirs, where the depletion of gas leaves the valuable condensate behind. In this paper, three enhanced gas recovery (EGR) methods including produced gas injection, CO2 injection and water injection are investigated to increase the well productivity for a tight gas condensate reservoir in the Montney Formation, Canada. The production performance of the three EGR methods is compared and their economic feasibility is evaluated. Sensitivity analysis of the key factors such as primary production duration, bottom-hole pressures, and fracture conductivity is conducted and their effects on the well production performance are analyzed. Results show that, compared with the simple depletion method, both the cumulative gas and condensate production increase with fluids injected. Produced gas injection leads to both a higher gas and condensate production compared with those of the CO2 injection, while waterflooding suffers from injection difficulty and the corresponding low sweep efficiency. Meanwhile, the injection cost is lower for the produced gas injection due to the on-site available gas source and minimal transport costs, gaining more economic benefits than the other EGR methods.Min WangShengnan ChenMenglu LinKeAi Communications Co., Ltd.articleTight gas condensate reservoirsEnhanced/improved gas recoveryProduced gas injectionSensitivity studyEconomic benefitScienceQPetrologyQE420-499ENPetroleum Science, Vol 15, Iss 2, Pp 305-318 (2018)
institution DOAJ
collection DOAJ
language EN
topic Tight gas condensate reservoirs
Enhanced/improved gas recovery
Produced gas injection
Sensitivity study
Economic benefit
Science
Q
Petrology
QE420-499
spellingShingle Tight gas condensate reservoirs
Enhanced/improved gas recovery
Produced gas injection
Sensitivity study
Economic benefit
Science
Q
Petrology
QE420-499
Min Wang
Shengnan Chen
Menglu Lin
Enhancing recovery and sensitivity studies in an unconventional tight gas condensate reservoir
description Abstract The recovery factor from tight gas reservoirs is typically less than 15%, even with multistage hydraulic fracturing stimulation. Such low recovery is exacerbated in tight gas condensate reservoirs, where the depletion of gas leaves the valuable condensate behind. In this paper, three enhanced gas recovery (EGR) methods including produced gas injection, CO2 injection and water injection are investigated to increase the well productivity for a tight gas condensate reservoir in the Montney Formation, Canada. The production performance of the three EGR methods is compared and their economic feasibility is evaluated. Sensitivity analysis of the key factors such as primary production duration, bottom-hole pressures, and fracture conductivity is conducted and their effects on the well production performance are analyzed. Results show that, compared with the simple depletion method, both the cumulative gas and condensate production increase with fluids injected. Produced gas injection leads to both a higher gas and condensate production compared with those of the CO2 injection, while waterflooding suffers from injection difficulty and the corresponding low sweep efficiency. Meanwhile, the injection cost is lower for the produced gas injection due to the on-site available gas source and minimal transport costs, gaining more economic benefits than the other EGR methods.
format article
author Min Wang
Shengnan Chen
Menglu Lin
author_facet Min Wang
Shengnan Chen
Menglu Lin
author_sort Min Wang
title Enhancing recovery and sensitivity studies in an unconventional tight gas condensate reservoir
title_short Enhancing recovery and sensitivity studies in an unconventional tight gas condensate reservoir
title_full Enhancing recovery and sensitivity studies in an unconventional tight gas condensate reservoir
title_fullStr Enhancing recovery and sensitivity studies in an unconventional tight gas condensate reservoir
title_full_unstemmed Enhancing recovery and sensitivity studies in an unconventional tight gas condensate reservoir
title_sort enhancing recovery and sensitivity studies in an unconventional tight gas condensate reservoir
publisher KeAi Communications Co., Ltd.
publishDate 2018
url https://doaj.org/article/0093eacadf094343ab06a849dd2bf5e1
work_keys_str_mv AT minwang enhancingrecoveryandsensitivitystudiesinanunconventionaltightgascondensatereservoir
AT shengnanchen enhancingrecoveryandsensitivitystudiesinanunconventionaltightgascondensatereservoir
AT menglulin enhancingrecoveryandsensitivitystudiesinanunconventionaltightgascondensatereservoir
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