Sensitivity Analysis of Water-Alternating-CO₂ Flooding for Enhanced Oil Recovery in High Water Cut Oil Reservoirs

Zhaojie Song; Zhiping Li; Mingzhen Wei; Fengpeng Lai; Baojun Bai

doi:10.1016/j.compfluid.2014.03.022

Sensitivity Analysis of Water-Alternating-CO₂ Flooding for Enhanced Oil Recovery in High Water Cut Oil Reservoirs

Zhaojie Song
, Zhiping Li
, Mingzhen Wei
, Fengpeng Lai
, Baojun Bai

Earth Sciences and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The objective of this work is to investigate the effect of operational schemes, reservoir types and development parameters on both the amount of incremental oil produced and CO ₂ stored in high water cut oil reservoirs during CO ₂ water-alternating-gas (WAG) flooding by running compositional numerical simulator.The method used is the orthogonal experimental design method to optimize operation parameters, including CO ₂ slug size, ratio of CO ₂ slug size to water slug size (WAG ratio), CO ₂ injection rate, and voidage replacement ratio. The Net Present Value (NPV) was used as an objective function for economic analysis. Various 3-D heterogeneous reservoir models were built to investigate the impact of reservoir types and development parameters on CO ₂ flooding efficiency and storage capacity.The results indicate that as compared to inverted nine-spot pattern and inverted seven-spot pattern, five-spot pattern is more suitable for CO ₂ WAG flooding. The earlier water injection is switched to CO ₂ , the more benefit can be obtained. Compared with CO ₂ injection cost and tax credit per ton of CO ₂ stored, oil price is considered as the most influential economic parameter on CO ₂ WAG flooding.

Original language	American English
Pages (from-to)	93-103
Number of pages	11
Journal	Computers and Fluids
Volume	99
DOIs	https://doi.org/10.1016/j.compfluid.2014.03.022
State	Published - Jul 1 2014

Keywords

Enhanced Oil Recovery
Net Present Value
Operational Scheme
Orthogonal Experimental Design
Technical And Economic Analyses
Economic Analysis
Enhanced Recovery
Floods
Low Permeability Reservoirs
Numerical Methods
Oil Field Development
Reservoirs (Water)
Statistics
Taxation
Water Injection

Disciplines

Geology

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10.1016/j.compfluid.2014.03.022License: CC BY

https://doi.org/10.1016/j.compfluid.2014.03.022

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@article{7faf1f9761d64074a6e024440c067af5,

title = "Sensitivity Analysis of Water-Alternating-CO₂ Flooding for Enhanced Oil Recovery in High Water Cut Oil Reservoirs",

abstract = " The objective of this work is to investigate the effect of operational schemes, reservoir types and development parameters on both the amount of incremental oil produced and CO 2 stored in high water cut oil reservoirs during CO 2 water-alternating-gas (WAG) flooding by running compositional numerical simulator.The method used is the orthogonal experimental design method to optimize operation parameters, including CO 2 slug size, ratio of CO 2 slug size to water slug size (WAG ratio), CO 2 injection rate, and voidage replacement ratio. The Net Present Value (NPV) was used as an objective function for economic analysis. Various 3-D heterogeneous reservoir models were built to investigate the impact of reservoir types and development parameters on CO 2 flooding efficiency and storage capacity.The results indicate that as compared to inverted nine-spot pattern and inverted seven-spot pattern, five-spot pattern is more suitable for CO 2 WAG flooding. The earlier water injection is switched to CO 2 , the more benefit can be obtained. Compared with CO 2 injection cost and tax credit per ton of CO 2 stored, oil price is considered as the most influential economic parameter on CO 2 WAG flooding.",

keywords = "Enhanced Oil Recovery, Net Present Value, Operational Scheme, Orthogonal Experimental Design, Technical And Economic Analyses, Economic Analysis, Enhanced Recovery, Floods, Low Permeability Reservoirs, Numerical Methods, Oil Field Development, Reservoirs (Water), Statistics, Taxation, Water Injection",

author = "Zhaojie Song and Zhiping Li and Mingzhen Wei and Fengpeng Lai and Baojun Bai",

year = "2014",

month = jul,

day = "1",

doi = "10.1016/j.compfluid.2014.03.022",

language = "American English",

volume = "99",

pages = "93--103",

journal = "Computers and Fluids",

}

TY - JOUR

T1 - Sensitivity Analysis of Water-Alternating-CO₂ Flooding for Enhanced Oil Recovery in High Water Cut Oil Reservoirs

AU - Song, Zhaojie

AU - Li, Zhiping

AU - Wei, Mingzhen

AU - Lai, Fengpeng

AU - Bai, Baojun

PY - 2014/7/1

Y1 - 2014/7/1

N2 - The objective of this work is to investigate the effect of operational schemes, reservoir types and development parameters on both the amount of incremental oil produced and CO 2 stored in high water cut oil reservoirs during CO 2 water-alternating-gas (WAG) flooding by running compositional numerical simulator.The method used is the orthogonal experimental design method to optimize operation parameters, including CO 2 slug size, ratio of CO 2 slug size to water slug size (WAG ratio), CO 2 injection rate, and voidage replacement ratio. The Net Present Value (NPV) was used as an objective function for economic analysis. Various 3-D heterogeneous reservoir models were built to investigate the impact of reservoir types and development parameters on CO 2 flooding efficiency and storage capacity.The results indicate that as compared to inverted nine-spot pattern and inverted seven-spot pattern, five-spot pattern is more suitable for CO 2 WAG flooding. The earlier water injection is switched to CO 2 , the more benefit can be obtained. Compared with CO 2 injection cost and tax credit per ton of CO 2 stored, oil price is considered as the most influential economic parameter on CO 2 WAG flooding.

AB - The objective of this work is to investigate the effect of operational schemes, reservoir types and development parameters on both the amount of incremental oil produced and CO 2 stored in high water cut oil reservoirs during CO 2 water-alternating-gas (WAG) flooding by running compositional numerical simulator.The method used is the orthogonal experimental design method to optimize operation parameters, including CO 2 slug size, ratio of CO 2 slug size to water slug size (WAG ratio), CO 2 injection rate, and voidage replacement ratio. The Net Present Value (NPV) was used as an objective function for economic analysis. Various 3-D heterogeneous reservoir models were built to investigate the impact of reservoir types and development parameters on CO 2 flooding efficiency and storage capacity.The results indicate that as compared to inverted nine-spot pattern and inverted seven-spot pattern, five-spot pattern is more suitable for CO 2 WAG flooding. The earlier water injection is switched to CO 2 , the more benefit can be obtained. Compared with CO 2 injection cost and tax credit per ton of CO 2 stored, oil price is considered as the most influential economic parameter on CO 2 WAG flooding.

KW - Enhanced Oil Recovery

KW - Net Present Value

KW - Operational Scheme

KW - Orthogonal Experimental Design

KW - Technical And Economic Analyses

KW - Economic Analysis

KW - Enhanced Recovery

KW - Floods

KW - Low Permeability Reservoirs

KW - Numerical Methods

KW - Oil Field Development

KW - Reservoirs (Water)

KW - Statistics

KW - Taxation

KW - Water Injection

UR - https://scholarsmine.mst.edu/geosci_geo_peteng_facwork/711

UR - https://doi.org/10.1016/j.compfluid.2014.03.022

U2 - 10.1016/j.compfluid.2014.03.022

DO - 10.1016/j.compfluid.2014.03.022

M3 - Article

VL - 99

SP - 93

EP - 103

JO - Computers and Fluids

JF - Computers and Fluids

ER -

Sensitivity Analysis of Water-Alternating-CO₂ Flooding for Enhanced Oil Recovery in High Water Cut Oil Reservoirs

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