Microscopic Experiments to Assess the Macroscopic Sweep Characteristics of Carbon Dioxide Flooding

材料科学 二氧化碳 环境科学 化学 有机化学
作者
Rujun Wang,Wei Zhou,Yongliang Tang,Daiyu Zhou,Zangyuan Wu,Liming Lian
出处
期刊:Applied sciences [Multidisciplinary Digital Publishing Institute]
卷期号:14 (19): 9007-9007
标识
DOI:10.3390/app14199007
摘要

The Lunnan oilfield in the Tarim Basin, one of China’s major onshore oilfields with substantial geological reserves, faces particular challenges due to the complexity of its reservoir environment and the dispersion of remaining oil. Carbon dioxide, a greenhouse gas, presents an opportunity for enhanced oil recovery (EOR) and geological storage. In this context, the use of carbon dioxide for EOR can simultaneously address environmental concerns and improve oil recovery rates. This study focuses on the TI reservoir in the No. 2 well area of the Lunnan oilfield, employing advanced techniques to analyze the micro- and macro-characteristics of carbon dioxide flooding. Results: From the microscopic point of view, carbon dioxide flooding is mainly miscible with crude oil, which has a strong component exchange effect and can be displaced in the form of full pores, and the microscopic displacement efficiency is close to 100%. Macroscopically, under the combined injection and production of different injected hydrocarbon pore volume multiples (HCPVs), it is injected at the upper and lower layers of the interlayer and produced far away from the lower layer of the interlayer, with a total recovery rate of 52.83%. With the increase in the HCPV, the recovery increased rapidly at first and then slowly, and the HCPV at the demarcation point was 0.5, while the oil production rate increased in a wave-like manner and then decreased rapidly, and the HCPV at the breakthrough point of TI gas was 0.5. However, when the upper and lower layers far away from the interlayer are injected at the same time, the upper and lower layers of the interlayer are produced at the same time, and the total recovery rate can reach 83.02%. With the increase in the HCPV, the recovery rate increases rapidly at first and then slowly, and the HCPV at the turning point is 6.52. The oil production rate increases in a wave-like manner, then decreases rapidly, rises rapidly, and then decreases slowly in a wave-like manner. The HCPV at the breakthrough point of TI gas is 0.63, and the HCPV at the injection–production transition point is 0.63. The total recovery rate of carbon dioxide miscible displacement can reach 88.68% under the condition of separate injection and combined production with different injected hydrocarbon pore volume multiples. With the increase in the HCPV, the recovery increased rapidly at first and then slowly. The HCPV at the demarcation point was 6.5, the oil production rate increased in a wave-like manner, then decreased rapidly, increased rapidly, and then decreased slowly in a wave-like manner. The HCPV at the breakthrough point of TI gas was 0.63, and the HCPV at the injection–production transition point was 6.5. The research results provide data support for the physical reality of the microscopic and macroscopic sweep characteristics of carbon dioxide flooding in the Lunnan oilfield, Tarim Basin.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
1秒前
英姑应助ryan采纳,获得10
1秒前
www什么发布了新的文献求助10
3秒前
wangzhen完成签到,获得积分20
4秒前
演员完成签到,获得积分10
5秒前
科研狗完成签到,获得积分10
6秒前
childe发布了新的文献求助10
6秒前
7秒前
丽英安发布了新的文献求助10
8秒前
苏苏发布了新的文献求助10
9秒前
领导范儿应助稳重迎荷采纳,获得10
9秒前
yu发布了新的文献求助20
9秒前
9秒前
10秒前
Fall发布了新的文献求助10
10秒前
文伊蕊完成签到 ,获得积分10
10秒前
11秒前
Dean应助葡萄炖雪梨采纳,获得100
12秒前
彭于晏应助szr采纳,获得10
12秒前
春眠不觉小小酥完成签到,获得积分10
12秒前
风清扬发布了新的文献求助10
14秒前
14秒前
11发布了新的文献求助10
14秒前
14秒前
天天快乐应助科研通管家采纳,获得10
14秒前
搜集达人应助科研通管家采纳,获得10
14秒前
NexusExplorer应助科研通管家采纳,获得10
14秒前
科研通AI2S应助科研通管家采纳,获得10
14秒前
Hello应助科研通管家采纳,获得10
14秒前
科目三应助科研通管家采纳,获得10
14秒前
bkagyin应助科研通管家采纳,获得10
14秒前
浮游应助科研通管家采纳,获得10
15秒前
Orange应助科研通管家采纳,获得30
15秒前
香蕉觅云应助科研通管家采纳,获得10
15秒前
天天快乐应助科研通管家采纳,获得10
15秒前
科研通AI5应助科研通管家采纳,获得10
15秒前
今后应助科研通管家采纳,获得10
15秒前
史双龙发布了新的文献求助10
15秒前
今后应助科研通管家采纳,获得10
15秒前
venom应助科研通管家采纳,获得20
15秒前
高分求助中
Comprehensive Toxicology Fourth Edition 24000
(应助此贴封号)【重要!!请各用户(尤其是新用户)详细阅读】【科研通的精品贴汇总】 10000
World Nuclear Fuel Report: Global Scenarios for Demand and Supply Availability 2025-2040 800
The Social Work Ethics Casebook(2nd,Frederic G. R) 600
HEAT TRANSFER EQUIPMENT DESIGN Advanced Study Institute Book 500
Master Curve-Auswertungen und Untersuchung des Größeneffekts für C(T)-Proben - aktuelle Erkenntnisse zur Untersuchung des Master Curve Konzepts für ferritisches Gusseisen mit Kugelgraphit bei dynamischer Beanspruchung (Projekt MCGUSS) 500
A novel angiographic index for predicting the efficacy of drug-coated balloons in small vessels 500
热门求助领域 (近24小时)
化学 医学 生物 材料科学 工程类 有机化学 内科学 生物化学 物理 计算机科学 纳米技术 遗传学 基因 复合材料 化学工程 物理化学 病理 催化作用 免疫学 量子力学
热门帖子
关注 科研通微信公众号,转发送积分 5114025
求助须知:如何正确求助?哪些是违规求助? 4321395
关于积分的说明 13465486
捐赠科研通 4152972
什么是DOI,文献DOI怎么找? 2275529
邀请新用户注册赠送积分活动 1277527
关于科研通互助平台的介绍 1215519