[1]刘永辉,吴朋勃,罗程程,等.泡沫排水采气适用界限的实验研究[J].深圳大学学报理工版,2020,37(5):490-496.[doi:10.3724/SP.J.1249.2020.05490]
 LIU Yonghui,WU Pengbo,LUO Chengcheng,et al.Experimental study on the applicable range of surfactant injection technology[J].Journal of Shenzhen University Science and Engineering,2020,37(5):490-496.[doi:10.3724/SP.J.1249.2020.05490]
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泡沫排水采气适用界限的实验研究()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第37卷
期数:
2020年第5期
页码:
490-496
栏目:
环境与能源
出版日期:
2020-09-15

文章信息/Info

Title:
Experimental study on the applicable range of surfactant injection technology
文章编号:
202005006
作者:
刘永辉1吴朋勃1罗程程1刘通2倪杰2王华3
1)西南石油大学油气藏地质及开发工程国家重点实验室, 四川成都 610500
2)中国石化西南油气分公司石油工程技术研究院,四川德阳618000
3)中国石油集团川庆钻探工程有限公司,四川成都 610501
Author(s):
LIU Yonghui1 WU Pengbo1 LUO Chengcheng1 LIU Tong2 NI Jie2 and WANG Hua3
1) State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, Sichuan Province, P.R.China
2) Petroleum Engineering Technology Institute, Southwest Oil & Gas Branch, SINOPEC, Deyang 618000, Sichuan Province, P.R.China
3) CNPC Chuanqing Drilling Engineering Co. Ltd., Chengdu 610501, Sichuan Province, P.R.China
关键词:
油气田开发 泡沫排水 可视化实验 表面张力 流型 井筒压降持液率携液临界气流速
Keywords:
oilfield development foam deliquification visual experiment surface tension flow pattern wellbore pressure drop liquid holdup critical gas velocity of liquid loading
分类号:
TE37
DOI:
10.3724/SP.J.1249.2020.05490
文献标志码:
A
摘要:
为明确各流型下泡沫排水工艺排液效果进而有效指导选井,设计一套可视化的空气-水-泡沫三相管流模拟实验装置,通过表面张力实验确定实验起泡剂浓度,开展不同气相表观流速和液相表观流速的泡沫举升效果实验.研究发现:在空气-水两相流动中加入起泡剂能够有效降低两相流动压降,显著抑制流动振荡;随着气相表观流速的增加,泡沫对井筒中压降和持液率的降低幅度呈先增后减;在泡沫排水有效区域内,井筒气和水搅动剧烈,促使加入的起泡剂与水充分接触产生大量泡沫,降低了井筒压降和持液率;将携液临界气流速作为泡沫排水有效区域的气相表观流速上限,该区域的气相表观流速下限为泡状流到段塞流的转换界限,确定泡沫排水效果最佳区域气相表观流速界限为段塞流到搅动流的转换界限.泡沫排水适用界限将两相流流型转换界限与泡沫实验结果紧密结合,明确了泡沫排水适用气量界限,降低排采成本,为气田泡沫排水工艺的高效应用提供依据.
Abstract:
In order to clarify the drainage effect of the foam drainage process under various flow patterns and effectively guide the well selection, we design a set of visual air-water-foam three-phase pipe flow simulation experimental apparatus. At first we determine the foam concentration by surface tension experiment, and then we conduct different foam lifting experimental tests with different gas superficial velocities and liquid superficial velocities. We obtain the following results. Firstly, adding the surfactant to the gas-water two-phase flow can effectively reduce the two-phase flow pressure drop and significantly suppress the flow fluctuation. Secondly, the degree of decrease in pressure drop and liquid holdup in the wellbore increases first and then decreases with increasing of the gas flow rate. Thirdly, in the effective range of the foam lift, gas and water in the wellbore are vigorously agitated, prompting the added surfactant to fully contact with the water, thereby generating a large amount of foam, reducing the wellbore pressure drop and liquid holdup. Fourthly, the critical gas flow rate to carry the liquid is taken as the upper limit of the effective range of the foam lift. The lower limit in this range is the transition boundary from bubble flow to slug flow, and the optimal flow rate of the foam lift is determined as the transition boundary from slug flow to churn flow. In conclusion, limits of foam drainage application connect the two-phase flow pattern transition boundary with the results of foam experiments. The clarification of limits of foam drainage application will help reduce the cost of gas well deliquification and provide a theoretical basis for the efficient application of the foam drainage technology in gas fields.

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备注/Memo

备注/Memo:
Received:2019-04-28;Accepted:2019-06-22
Foundation:National Natural Science Foundation of China(51534006);National Science and Technology Major Project of China(2016ZX05017-005-003);Open Fund of Stata Key Laboratory of Oil and Gas Reservoir Geology and Exploitation(PLN1517)
Corresponding author:Professor LIU Yonghui. E-mail: swpilyh@126.com
Citation:LIU Yonghui, WU Pengbo, LUO Chengcheng, et al. Experimental study on the applicable range of surfactant injection technology[J]. Journal of Shenzhen University Science and Engineering, 2020, 37(5): 490-496.(in Chinese)
基金项目:国家自然科学基金资助项目(51534006);国家科技重大专项资助项目(2016ZX05017-005-003);国家重点实验室开发基金资助项目(PLN1517)
作者简介:刘永辉(1977—),西南石油大学教授、博士生导师.研究方向:采油采气.E-mail:swpilyh@126.com
引文:刘永辉,吴朋勃,罗程程,等.泡沫排水采气适用界限的实验研究[J]. 深圳大学学报理工版,2020,37(5):490-496.
更新日期/Last Update: 2020-07-26