$Modified method for fracability evaluation of tight sandstones based on interval transit time$
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Modified method for fracability evaluation of tight sandstones based on interval transit time

Abstract Fracability is a property that indicates how easy reservoir rocks can be fractured in hydraulic fracturing operations. It is a key parameter for fracturing design and evaluation. In order to utilize continuous logging data to predict fracability, synchronous tests of dynamic and static mech...

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Autores principales:	Jing Li, Xiao-Rong Li, Hong-Bin Zhan, Ming-Shui Song, Chen Liu, Xiang-Chao Kong, Lu-Ning Sun
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2019
Materias:	Tight sandstone Brittleness index Fracture toughness Fracability index Science Q Petrology QE420-499
Acceso en línea:	https://doaj.org/article/0b63936e57404c7a8e3d0953973ea129
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spelling	oai:doaj.org-article:0b63936e57404c7a8e3d0953973ea1292021-12-02T13:01:48ZModified method for fracability evaluation of tight sandstones based on interval transit time10.1007/s12182-019-00397-x1672-51071995-8226https://doaj.org/article/0b63936e57404c7a8e3d0953973ea1292019-11-01T00:00:00Zhttps://doi.org/10.1007/s12182-019-00397-xhttps://doaj.org/toc/1672-5107https://doaj.org/toc/1995-8226Abstract Fracability is a property that indicates how easy reservoir rocks can be fractured in hydraulic fracturing operations. It is a key parameter for fracturing design and evaluation. In order to utilize continuous logging data to predict fracability, synchronous tests of dynamic and static mechanical parameters of rocks under different confining pressures were conducted on 13 tight sandstone samples derived from the central Junggar Basin, China. A modified formula between dynamic and static mechanical parameters was established. Fracability of the tight reservoir in the Junggar Basin was then evaluated based on brittleness index, fracture toughness, and fracability index. The effectiveness of fracturing was analyzed combined with the oil testing curve after hydraulic fracturing. The results show that: (1) The distribution of oil-bearing formations in the studied area coincides well with stratum of higher fracability index. (2) The critical fracability index is determined to be 0.3, three formations are selected as fracturing candidates, and a thin mudstone interbed is identified in the oil-bearing formation. (3) Well testing curve verifies the reliability of the fracability evaluation method and the accuracy of the modified formula between dynamic and static mechanical parameters. This study provides useful information for improving fracturing operations of tight oil and gas reservoirs.Jing LiXiao-Rong LiHong-Bin ZhanMing-Shui SongChen LiuXiang-Chao KongLu-Ning SunKeAi Communications Co., Ltd.articleTight sandstoneBrittleness indexFracture toughnessFracability indexScienceQPetrologyQE420-499ENPetroleum Science, Vol 17, Iss 2, Pp 477-486 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Tight sandstone Brittleness index Fracture toughness Fracability index Science Q Petrology QE420-499
spellingShingle	Tight sandstone Brittleness index Fracture toughness Fracability index Science Q Petrology QE420-499 Jing Li Xiao-Rong Li Hong-Bin Zhan Ming-Shui Song Chen Liu Xiang-Chao Kong Lu-Ning Sun Modified method for fracability evaluation of tight sandstones based on interval transit time
description	Abstract Fracability is a property that indicates how easy reservoir rocks can be fractured in hydraulic fracturing operations. It is a key parameter for fracturing design and evaluation. In order to utilize continuous logging data to predict fracability, synchronous tests of dynamic and static mechanical parameters of rocks under different confining pressures were conducted on 13 tight sandstone samples derived from the central Junggar Basin, China. A modified formula between dynamic and static mechanical parameters was established. Fracability of the tight reservoir in the Junggar Basin was then evaluated based on brittleness index, fracture toughness, and fracability index. The effectiveness of fracturing was analyzed combined with the oil testing curve after hydraulic fracturing. The results show that: (1) The distribution of oil-bearing formations in the studied area coincides well with stratum of higher fracability index. (2) The critical fracability index is determined to be 0.3, three formations are selected as fracturing candidates, and a thin mudstone interbed is identified in the oil-bearing formation. (3) Well testing curve verifies the reliability of the fracability evaluation method and the accuracy of the modified formula between dynamic and static mechanical parameters. This study provides useful information for improving fracturing operations of tight oil and gas reservoirs.
format	article
author	Jing Li Xiao-Rong Li Hong-Bin Zhan Ming-Shui Song Chen Liu Xiang-Chao Kong Lu-Ning Sun
author_facet	Jing Li Xiao-Rong Li Hong-Bin Zhan Ming-Shui Song Chen Liu Xiang-Chao Kong Lu-Ning Sun
author_sort	Jing Li
title	Modified method for fracability evaluation of tight sandstones based on interval transit time
title_short	Modified method for fracability evaluation of tight sandstones based on interval transit time
title_full	Modified method for fracability evaluation of tight sandstones based on interval transit time
title_fullStr	Modified method for fracability evaluation of tight sandstones based on interval transit time
title_full_unstemmed	Modified method for fracability evaluation of tight sandstones based on interval transit time
title_sort	modified method for fracability evaluation of tight sandstones based on interval transit time
publisher	KeAi Communications Co., Ltd.
publishDate	2019
url	https://doaj.org/article/0b63936e57404c7a8e3d0953973ea129
work_keys_str_mv	AT jingli modifiedmethodforfracabilityevaluationoftightsandstonesbasedonintervaltransittime AT xiaorongli modifiedmethodforfracabilityevaluationoftightsandstonesbasedonintervaltransittime AT hongbinzhan modifiedmethodforfracabilityevaluationoftightsandstonesbasedonintervaltransittime AT mingshuisong modifiedmethodforfracabilityevaluationoftightsandstonesbasedonintervaltransittime AT chenliu modifiedmethodforfracabilityevaluationoftightsandstonesbasedonintervaltransittime AT xiangchaokong modifiedmethodforfracabilityevaluationoftightsandstonesbasedonintervaltransittime AT luningsun modifiedmethodforfracabilityevaluationoftightsandstonesbasedonintervaltransittime
_version_	1718393490061131776

Modified method for fracability evaluation of tight sandstones based on interval transit time

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