Effect of hydraulic fractures parameters on welltest response of multi-fractured tight gas reservoirs

With the reduction of conventional reserves, the demand and exploration of unconventional sources becomes increasingly important in the energy supply system. Low permeability, low porosity, and the complexities of rock formation in unconventional gas reservoirs make it difficult to extract commercia...

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Main Authors: Qiu, C., Hossain, Mofazzal, Bahrami, H., Lu, Y.
Format: Journal Article
Published: Australian Petroleum Production and Exploration Association 2013
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/26731
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author Qiu, C.
Hossain, Mofazzal
Bahrami, H.
Lu, Y.
author_facet Qiu, C.
Hossain, Mofazzal
Bahrami, H.
Lu, Y.
author_sort Qiu, C.
building Curtin Institutional Repository
collection Online Access
description With the reduction of conventional reserves, the demand and exploration of unconventional sources becomes increasingly important in the energy supply system. Low permeability, low porosity, and the complexities of rock formation in unconventional gas reservoirs make it difficult to extract commercially viable gas resources. Hydraulic fracture is the most common technique used for commercial production of hydrocarbon resources from unconventional tight-gas reservoirs. Due to the existence of an extremely long transient-flow period in tight-gas reservoirs, the interpretation of welltest data based on conventional welltest analysis is quite challenging, and could potentially lead to misleading results. This peer-reviewed paper presents a new approach based on a log-log reciprocal rate derivative plot. Emphases are given on the identification of factors affecting the welltest response in multiple hydraulic-fractured wells in unconventional gas reservoirs based on numerical simulation. The objective is to investigate the sensitivity of various reservoir and hydraulic-fracture parameters, such as multiple hydraulic-fracture size, fracture number and fracture orientation on welltest response, and the effect of the pressure derivative curve on the slopes of welltest diagnostic plots, as well as on ell productivity performance. The results can be used to understand the welltest response for different hydraulic-fracturing scenarios for the efficiency and characteristics of hydraulic fractures.
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format Journal Article
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institution Curtin University Malaysia
institution_category Local University
last_indexed 2025-11-14T08:02:46Z
publishDate 2013
publisher Australian Petroleum Production and Exploration Association
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spelling curtin-20.500.11937-267312017-01-30T12:54:56Z Effect of hydraulic fractures parameters on welltest response of multi-fractured tight gas reservoirs Qiu, C. Hossain, Mofazzal Bahrami, H. Lu, Y. welltest response multifractured tight-gas reservoir Hydraulic-fracture parameters With the reduction of conventional reserves, the demand and exploration of unconventional sources becomes increasingly important in the energy supply system. Low permeability, low porosity, and the complexities of rock formation in unconventional gas reservoirs make it difficult to extract commercially viable gas resources. Hydraulic fracture is the most common technique used for commercial production of hydrocarbon resources from unconventional tight-gas reservoirs. Due to the existence of an extremely long transient-flow period in tight-gas reservoirs, the interpretation of welltest data based on conventional welltest analysis is quite challenging, and could potentially lead to misleading results. This peer-reviewed paper presents a new approach based on a log-log reciprocal rate derivative plot. Emphases are given on the identification of factors affecting the welltest response in multiple hydraulic-fractured wells in unconventional gas reservoirs based on numerical simulation. The objective is to investigate the sensitivity of various reservoir and hydraulic-fracture parameters, such as multiple hydraulic-fracture size, fracture number and fracture orientation on welltest response, and the effect of the pressure derivative curve on the slopes of welltest diagnostic plots, as well as on ell productivity performance. The results can be used to understand the welltest response for different hydraulic-fracturing scenarios for the efficiency and characteristics of hydraulic fractures. 2013 Journal Article http://hdl.handle.net/20.500.11937/26731 Australian Petroleum Production and Exploration Association restricted
spellingShingle welltest response
multifractured tight-gas reservoir
Hydraulic-fracture parameters
Qiu, C.
Hossain, Mofazzal
Bahrami, H.
Lu, Y.
Effect of hydraulic fractures parameters on welltest response of multi-fractured tight gas reservoirs
title Effect of hydraulic fractures parameters on welltest response of multi-fractured tight gas reservoirs
title_full Effect of hydraulic fractures parameters on welltest response of multi-fractured tight gas reservoirs
title_fullStr Effect of hydraulic fractures parameters on welltest response of multi-fractured tight gas reservoirs
title_full_unstemmed Effect of hydraulic fractures parameters on welltest response of multi-fractured tight gas reservoirs
title_short Effect of hydraulic fractures parameters on welltest response of multi-fractured tight gas reservoirs
title_sort effect of hydraulic fractures parameters on welltest response of multi-fractured tight gas reservoirs
topic welltest response
multifractured tight-gas reservoir
Hydraulic-fracture parameters
url http://hdl.handle.net/20.500.11937/26731