Macroscopic three-dimensional physical simulation of water flooding in multi-well fracture-cavity unit

Macroscopic three-dimensional physical simulation of water flooding in multi-well fracture-cavity unit

A macroscopic three-dimensional physical simulating model of multi-well fracture-cavity units was designed and constructed based on similarity theory. The characteristics and the water breakthrough pattern of fracture-cavity reservoirs developed in bottom water depletion and water injection modes we...

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Main Authors: Jirui HOU, Haibo LI, Yu JIANG, Ming LUO, Zeyu ZHENG, Li ZHANG, Dengyu YUAN
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2014-12-01
Series:Petroleum Exploration and Development
Online Access:http://www.sciencedirect.com/science/article/pii/S1876380414600938
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record_format Article
collection DOAJ
language English
format Article
sources DOAJ
author Jirui HOU
Haibo LI
Yu JIANG
Ming LUO
Zeyu ZHENG
Li ZHANG
Dengyu YUAN
spellingShingle Jirui HOU
Haibo LI
Yu JIANG
Ming LUO
Zeyu ZHENG
Li ZHANG
Dengyu YUAN
Macroscopic three-dimensional physical simulation of water flooding in multi-well fracture-cavity unit
Petroleum Exploration and Development
author_facet Jirui HOU
Haibo LI
Yu JIANG
Ming LUO
Zeyu ZHENG
Li ZHANG
Dengyu YUAN
author_sort Jirui HOU
title Macroscopic three-dimensional physical simulation of water flooding in multi-well fracture-cavity unit
title_short Macroscopic three-dimensional physical simulation of water flooding in multi-well fracture-cavity unit
title_full Macroscopic three-dimensional physical simulation of water flooding in multi-well fracture-cavity unit
title_fullStr Macroscopic three-dimensional physical simulation of water flooding in multi-well fracture-cavity unit
title_full_unstemmed Macroscopic three-dimensional physical simulation of water flooding in multi-well fracture-cavity unit
title_sort macroscopic three-dimensional physical simulation of water flooding in multi-well fracture-cavity unit
publisher KeAi Communications Co., Ltd.
series Petroleum Exploration and Development
issn 1876-3804
publishDate 2014-12-01
description A macroscopic three-dimensional physical simulating model of multi-well fracture-cavity units was designed and constructed based on similarity theory. The characteristics and the water breakthrough pattern of fracture-cavity reservoirs developed in bottom water depletion and water injection modes were investigated by the model. The results show that, in bottom water drive, under the effect of bottom water depletion and water breakthrough, the wells had high productivity in early stage and fast decline. After energy supplement by injecting water, the productivity rebounded in a short time and then began a slow decline. The bottom water tended to coning to the wells at the place of bottom water entry. The water breakthrough pattern is spot pattern and the water breakthrough time is controlled by the well's connectivity to the bottom water; the water injection can inhibit coning and intrusion of bottom water, turning the spot pattern water breakthrough in bottom water drive period into planar line form, and the water breakthrough time in water injection period was mainly influenced by the well depth. The water cut of wells in water flooding multi-well fracture-cavity units changes in three patterns: slow rise, staircase rise and abrupt watered-out, which is influenced by the reservoir type and the coordination number. When the well encounters cavity, the water cut increasing rate slows down with the increase of the coordination number; when the well drilled fractures, the water cut changes in staircase pattern with the increase of coordination number. Key words: fracture-cavity reservoir, macroscopic three-dimensional physical simulation model, similarity theory, bottom water coning, inhibit coning by water injection, varying pattern of water cut
url http://www.sciencedirect.com/science/article/pii/S1876380414600938
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AT yujiang macroscopicthreedimensionalphysicalsimulationofwaterfloodinginmultiwellfracturecavityunit
AT mingluo macroscopicthreedimensionalphysicalsimulationofwaterfloodinginmultiwellfracturecavityunit
AT zeyuzheng macroscopicthreedimensionalphysicalsimulationofwaterfloodinginmultiwellfracturecavityunit
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spelling doaj-9002316b4ea541cb8d4c3c0a3e1e2ec12021-03-02T10:32:50ZengKeAi Communications Co., Ltd.Petroleum Exploration and Development1876-38042014-12-01416784789Macroscopic three-dimensional physical simulation of water flooding in multi-well fracture-cavity unitJirui HOU0Haibo LI1Yu JIANG2Ming LUO3Zeyu ZHENG4Li ZHANG5Dengyu YUAN6Enhanced Oil Recovery Institute, China University of Petroleum, Beijing 102249, China; Laboratory of Basic Theory for Application of EOR in Low Permeable Oil Fields, CNPC Key Laboratory of EOR, China University of Petroleum, Beijing 102249, China; MOE Key Laboratory of Petroleum Engineering, China University of Petroleum, Beijing 102249, China; Corresponding authorEnhanced Oil Recovery Institute, China University of Petroleum, Beijing 102249, China; Laboratory of Basic Theory for Application of EOR in Low Permeable Oil Fields, CNPC Key Laboratory of EOR, China University of Petroleum, Beijing 102249, China; MOE Key Laboratory of Petroleum Engineering, China University of Petroleum, Beijing 102249, ChinaEnhanced Oil Recovery Institute, China University of Petroleum, Beijing 102249, China; Laboratory of Basic Theory for Application of EOR in Low Permeable Oil Fields, CNPC Key Laboratory of EOR, China University of Petroleum, Beijing 102249, China; MOE Key Laboratory of Petroleum Engineering, China University of Petroleum, Beijing 102249, ChinaEnhanced Oil Recovery Institute, China University of Petroleum, Beijing 102249, China; Laboratory of Basic Theory for Application of EOR in Low Permeable Oil Fields, CNPC Key Laboratory of EOR, China University of Petroleum, Beijing 102249, China; MOE Key Laboratory of Petroleum Engineering, China University of Petroleum, Beijing 102249, ChinaEnhanced Oil Recovery Institute, China University of Petroleum, Beijing 102249, China; Laboratory of Basic Theory for Application of EOR in Low Permeable Oil Fields, CNPC Key Laboratory of EOR, China University of Petroleum, Beijing 102249, China; MOE Key Laboratory of Petroleum Engineering, China University of Petroleum, Beijing 102249, ChinaEnhanced Oil Recovery Institute, China University of Petroleum, Beijing 102249, China; Laboratory of Basic Theory for Application of EOR in Low Permeable Oil Fields, CNPC Key Laboratory of EOR, China University of Petroleum, Beijing 102249, China; MOE Key Laboratory of Petroleum Engineering, China University of Petroleum, Beijing 102249, ChinaEnhanced Oil Recovery Institute, China University of Petroleum, Beijing 102249, China; Laboratory of Basic Theory for Application of EOR in Low Permeable Oil Fields, CNPC Key Laboratory of EOR, China University of Petroleum, Beijing 102249, China; MOE Key Laboratory of Petroleum Engineering, China University of Petroleum, Beijing 102249, ChinaA macroscopic three-dimensional physical simulating model of multi-well fracture-cavity units was designed and constructed based on similarity theory. The characteristics and the water breakthrough pattern of fracture-cavity reservoirs developed in bottom water depletion and water injection modes were investigated by the model. The results show that, in bottom water drive, under the effect of bottom water depletion and water breakthrough, the wells had high productivity in early stage and fast decline. After energy supplement by injecting water, the productivity rebounded in a short time and then began a slow decline. The bottom water tended to coning to the wells at the place of bottom water entry. The water breakthrough pattern is spot pattern and the water breakthrough time is controlled by the well's connectivity to the bottom water; the water injection can inhibit coning and intrusion of bottom water, turning the spot pattern water breakthrough in bottom water drive period into planar line form, and the water breakthrough time in water injection period was mainly influenced by the well depth. The water cut of wells in water flooding multi-well fracture-cavity units changes in three patterns: slow rise, staircase rise and abrupt watered-out, which is influenced by the reservoir type and the coordination number. When the well encounters cavity, the water cut increasing rate slows down with the increase of the coordination number; when the well drilled fractures, the water cut changes in staircase pattern with the increase of coordination number. Key words: fracture-cavity reservoir, macroscopic three-dimensional physical simulation model, similarity theory, bottom water coning, inhibit coning by water injection, varying pattern of water cuthttp://www.sciencedirect.com/science/article/pii/S1876380414600938

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