A Semi-Analytical Model Based on the Volumetric Source Method to Predict Acid Injection Profiles of Horizontal Wells in Carbonate Reservoirs

doi:10.1115/1.4048508

	A Semi-Analytical Model Based on the Volumetric Source Method to Predict Acid Injection Profiles of Horizontal Wells in Carbonate Reservoirs
	Tan, Yongsheng 1,2,3; Li, Qi 2,3; Li, Haitao 1; Zhou, Xiang 1; Jiang, Beibei 1
刊名	JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME
	2021-05-01
卷号	143 期号:5 页码:9
关键词	carbonate reservoirs horizontal well semi-analytical model volumetric source injection profile
ISSN号	0195-0738
DOI	10.1115/1.4048508
英文摘要	Acid treatment is an important measure to improve production for horizontal wells of carbonate reservoirs. Acid injection profile of horizontal wells (AIPHWs) is the most critical indicator of the success of the acidification. Currently, most previous works studied AIPHW based on the point source method. However, an inherent singularity exists in the point source solution, and hence, the calculation speed is too slow or the solution does not converge. To solve this problem, a semi-analytical model (coupling the wellbore flow model and reservoir seepage model) by the volumetric source method is presented to determine AIPHW in carbonate reservoirs. In this new coupled model, the permeability heterogeneity, formation contamination, acid-induced wormhole formation, and wellbore pressure drop are all considered. The results of the validations show that the results from the proposed method match well with the model results from the literature. Then, the effects of the acid injection flowrate, acid injection time, and permeability heterogeneity on the AIPHW are studied. According to the sensitivity analysis, we find that the disequilibrium degree of AIPHW becomes stronger as acid injection flowrate increases, acid injection time increases, and permeability heterogeneity coefficient increases. This study provides a guide for the design of horizontal well acidification and the evaluation of acid treatments of horizontal wells in carbonate reservoirs.
资助项目	National Science and Technology Major Project of China[2016ZX05052003] ; National Science and Technology Major Project of China[2016ZX05017005-006]
WOS研究方向	Energy & Fuels
语种	英语
出版者	ASME
WOS记录号	WOS:000636261800027
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/26008]
专题	中科院武汉岩土力学所
通讯作者	Li, Haitao
作者单位	1.Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Sichuan, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Tan, Yongsheng,Li, Qi,Li, Haitao,et al. A Semi-Analytical Model Based on the Volumetric Source Method to Predict Acid Injection Profiles of Horizontal Wells in Carbonate Reservoirs[J]. JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME,2021,143(5):9.
APA	Tan, Yongsheng,Li, Qi,Li, Haitao,Zhou, Xiang,&Jiang, Beibei.(2021).A Semi-Analytical Model Based on the Volumetric Source Method to Predict Acid Injection Profiles of Horizontal Wells in Carbonate Reservoirs.JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME,143(5),9.
MLA	Tan, Yongsheng,et al."A Semi-Analytical Model Based on the Volumetric Source Method to Predict Acid Injection Profiles of Horizontal Wells in Carbonate Reservoirs".JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME 143.5(2021):9.