A Gas Separation Model for a Downhole Gravitational Separator

分离器(采油) 围带 机械 气旋分离 消散 喷油器 气泡 前沿 放气 锥面 入口 石油工程 化学 热力学 机械工程 工程类 物理 有机化学
作者
P. J. Miranda-Lugo,L. Enrique Ortiz-Vidal,Oscar Maurício Hernandez Rodriguez
出处
期刊:Spe Journal [Society of Petroleum Engineers]
卷期号:26 (05): 2963-2976 被引量:4
标识
DOI:10.2118/205513-pa
摘要

Summary Pumping systems reduce their efficiency and lifetime when working with free gas at the pump inlet. Downhole gas separators are usually installed upstream of the pump in oil production wells to avoid free gas, but they cannot handle high void fraction. Studies on the so-called inverted-shroud gravitational separator indicate that it is possible to achieve gas separation efficiencies (GSEs) higher than 97%, even in the presence of very high void fraction. Gas separation inside this kind of separator works in two stages. The most critical stage is related to gas entrainment caused by a plunging free-surface flow in an annular channel formed by the production tubing and the separator itself, where strong kinetic energy dissipation takes place. Studies regarding this phenomenon in inverted-shroud separators are scanty. In this study, we present a semianalytical model supported by an empirical turbulent energy-dissipation correlation. The proposed correlation is based on dimensional analysis. New experimental data of the statistical distributions of bubble diameters during the gas entrainment process are presented. We measured bubbles diameters using a high-speed video camera and an edge detection algorithm. Data of both bubble diameters and GSE were used to adjust and validate the proposed model. The model establishes a transition boundary that separates a region of total gas separation (TGS) from a region of partial gas separation (PGS). In other words, it provides the operating envelope of the separator. The results can be used as a starting point for the design of inverted-shroud separators for field applications.
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
善学以致用应助liherong采纳,获得30
1秒前
2秒前
2秒前
3秒前
爆米花应助hino采纳,获得10
3秒前
orixero应助猪猪hero采纳,获得10
3秒前
单纯的思松发布了新的文献求助100
3秒前
Lucas应助ZYao65采纳,获得10
3秒前
书霂完成签到,获得积分10
3秒前
simey完成签到,获得积分10
4秒前
lauhoihung发布了新的文献求助10
6秒前
6秒前
朱哦哦发布了新的文献求助10
6秒前
ding应助semon采纳,获得10
6秒前
6秒前
shuxi完成签到,获得积分10
7秒前
7秒前
qiyun发布了新的文献求助10
7秒前
living笑白发布了新的文献求助10
7秒前
8秒前
万能图书馆应助sciiiiii采纳,获得10
9秒前
猪猪hero发布了新的文献求助10
9秒前
杨123发布了新的文献求助10
10秒前
高高发布了新的文献求助10
10秒前
10秒前
11秒前
张雷应助HAHAHA采纳,获得20
12秒前
12秒前
living笑白完成签到,获得积分10
12秒前
tls发布了新的文献求助10
13秒前
clinched完成签到,获得积分10
13秒前
13秒前
13秒前
14秒前
朱哦哦完成签到,获得积分20
15秒前
qiyun完成签到,获得积分10
15秒前
温柔映阳发布了新的文献求助10
15秒前
16秒前
猪猪hero发布了新的文献求助10
16秒前
木光发布了新的文献求助10
16秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3988827
求助须知:如何正确求助?哪些是违规求助? 3531183
关于积分的说明 11252671
捐赠科研通 3269809
什么是DOI,文献DOI怎么找? 1804780
邀请新用户注册赠送积分活动 881885
科研通“疑难数据库(出版商)”最低求助积分说明 809021