Intelligent prediction and integral analysis of shale oil and gas sweet spots

Abstract Shale reservoirs are characterized by low porosity and strong anisotropy. Conventional geophysical methods are far from perfect when it comes to the prediction of shale sweet spot locations, and even less reliable when attempting to delineate unconventional features of shale oil and gas. Ba...

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Autores principales: Ke-Ran Qian, Zhi-Liang He, Xi-Wu Liu, Ye-Quan Chen
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Lenguaje:EN
Publicado: KeAi Communications Co., Ltd. 2018
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Acceso en línea:https://doaj.org/article/93464f75af3a48749f2f3b65c3af23b6
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spelling oai:doaj.org-article:93464f75af3a48749f2f3b65c3af23b62021-12-02T12:03:43ZIntelligent prediction and integral analysis of shale oil and gas sweet spots10.1007/s12182-018-0261-y1672-51071995-8226https://doaj.org/article/93464f75af3a48749f2f3b65c3af23b62018-10-01T00:00:00Zhttp://link.springer.com/article/10.1007/s12182-018-0261-yhttps://doaj.org/toc/1672-5107https://doaj.org/toc/1995-8226Abstract Shale reservoirs are characterized by low porosity and strong anisotropy. Conventional geophysical methods are far from perfect when it comes to the prediction of shale sweet spot locations, and even less reliable when attempting to delineate unconventional features of shale oil and gas. Based on some mathematical algorithms such as fuzzy mathematics, machine learning and multiple regression analysis, an effective workflow is proposed to allow intelligent prediction of sweet spots and comprehensive quantitative characterization of shale oil and gas reservoirs. This workflow can effectively combine multi-scale and multi-disciplinary data such as geology, well drilling, logging and seismic data. Following the maximum subordination and attribute optimization principle, we establish a machine learning model by adopting the support vector machine method to arrive at multi-attribute prediction of reservoir sweet spot location. Additionally, multiple regression analysis technology is applied to quantitatively predict a number of sweet spot attributes. The practical application of these methods to areas of interest shows high accuracy of sweet spot prediction, indicating that it is a good approach for describing the distribution of high-quality regions within shale reservoirs. Based on these sweet spot attributes, quantitative characterization of unconventional reservoirs can provide a reliable evaluation of shale reservoir potential.Ke-Ran QianZhi-Liang HeXi-Wu LiuYe-Quan ChenKeAi Communications Co., Ltd.articleShale reservoirMachine learningSupport vector machineSweet spot predictionScienceQPetrologyQE420-499ENPetroleum Science, Vol 15, Iss 4, Pp 744-755 (2018)
institution DOAJ
collection DOAJ
language EN
topic Shale reservoir
Machine learning
Support vector machine
Sweet spot prediction
Science
Q
Petrology
QE420-499
spellingShingle Shale reservoir
Machine learning
Support vector machine
Sweet spot prediction
Science
Q
Petrology
QE420-499
Ke-Ran Qian
Zhi-Liang He
Xi-Wu Liu
Ye-Quan Chen
Intelligent prediction and integral analysis of shale oil and gas sweet spots
description Abstract Shale reservoirs are characterized by low porosity and strong anisotropy. Conventional geophysical methods are far from perfect when it comes to the prediction of shale sweet spot locations, and even less reliable when attempting to delineate unconventional features of shale oil and gas. Based on some mathematical algorithms such as fuzzy mathematics, machine learning and multiple regression analysis, an effective workflow is proposed to allow intelligent prediction of sweet spots and comprehensive quantitative characterization of shale oil and gas reservoirs. This workflow can effectively combine multi-scale and multi-disciplinary data such as geology, well drilling, logging and seismic data. Following the maximum subordination and attribute optimization principle, we establish a machine learning model by adopting the support vector machine method to arrive at multi-attribute prediction of reservoir sweet spot location. Additionally, multiple regression analysis technology is applied to quantitatively predict a number of sweet spot attributes. The practical application of these methods to areas of interest shows high accuracy of sweet spot prediction, indicating that it is a good approach for describing the distribution of high-quality regions within shale reservoirs. Based on these sweet spot attributes, quantitative characterization of unconventional reservoirs can provide a reliable evaluation of shale reservoir potential.
format article
author Ke-Ran Qian
Zhi-Liang He
Xi-Wu Liu
Ye-Quan Chen
author_facet Ke-Ran Qian
Zhi-Liang He
Xi-Wu Liu
Ye-Quan Chen
author_sort Ke-Ran Qian
title Intelligent prediction and integral analysis of shale oil and gas sweet spots
title_short Intelligent prediction and integral analysis of shale oil and gas sweet spots
title_full Intelligent prediction and integral analysis of shale oil and gas sweet spots
title_fullStr Intelligent prediction and integral analysis of shale oil and gas sweet spots
title_full_unstemmed Intelligent prediction and integral analysis of shale oil and gas sweet spots
title_sort intelligent prediction and integral analysis of shale oil and gas sweet spots
publisher KeAi Communications Co., Ltd.
publishDate 2018
url https://doaj.org/article/93464f75af3a48749f2f3b65c3af23b6
work_keys_str_mv AT keranqian intelligentpredictionandintegralanalysisofshaleoilandgassweetspots
AT zhilianghe intelligentpredictionandintegralanalysisofshaleoilandgassweetspots
AT xiwuliu intelligentpredictionandintegralanalysisofshaleoilandgassweetspots
AT yequanchen intelligentpredictionandintegralanalysisofshaleoilandgassweetspots
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