Diagnosis of Water-Influx Locations of Horizontal Well Subject to Bottom-Water Drive through Well-Testing Analysis
Joint Authors
Yu, Haiyang
Cheng, Shiqing
Qin, Jiazheng
He, Youwei
Li, Dingyi
Luo, Le
Shen, Xinzhe
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-11-25
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Horizontal well (HW) has been widely applied to enhance well productivity and prevent water coning in the anisotropic reservoir subject to bottom-water drive.
However, the water-cut increases quickly after only one or two years’ production in China while oil recovery still keeps at a very low level.
It becomes a major challenge to effectively estimate production distribution and diagnose water-influx locations.
Ignoring the effect of nonuniform production distribution along wellbore on pressure response may cause erroneous results especially for water-influx location determination.
This paper developed an analytical method to determine nonuniform production distribution and estimate water-influx sections through well-testing analysis.
Each HW is divided into multiple producing segments (PS) with variable parameters (e.g., location, production, length, and skin factor) in this model.
By using Green’s functions and the Newman-product method, the novel transient pressure solutions of an HW can be obtained in the anisotropic reservoir with bottom-water drive.
Secondly, the influences of nonuniform production-distribution on type curves are investigated by comparing the multisegment model (MSM) with the whole-segment model (WSM).
Results indicate that the method proposed in this paper enables petroleum operators to interpret parameters of reservoir and HW more accurately by using well-testing interpretation on the basis of bottom-hole pressure data and further estimate water-influx sections and nonproducing segments.
Additionally, relevant measures can be conducted to enhance oil production, such as water controlling for water-breakthrough segments and stimulation treatments for nonproducing locations.
American Psychological Association (APA)
Qin, Jiazheng& Cheng, Shiqing& He, Youwei& Li, Dingyi& Luo, Le& Shen, Xinzhe…[et al.]. 2018. Diagnosis of Water-Influx Locations of Horizontal Well Subject to Bottom-Water Drive through Well-Testing Analysis. Geofluids،Vol. 2018, no. 2018, pp.1-14.
https://search.emarefa.net/detail/BIM-1158243
Modern Language Association (MLA)
Qin, Jiazheng…[et al.]. Diagnosis of Water-Influx Locations of Horizontal Well Subject to Bottom-Water Drive through Well-Testing Analysis. Geofluids No. 2018 (2018), pp.1-14.
https://search.emarefa.net/detail/BIM-1158243
American Medical Association (AMA)
Qin, Jiazheng& Cheng, Shiqing& He, Youwei& Li, Dingyi& Luo, Le& Shen, Xinzhe…[et al.]. Diagnosis of Water-Influx Locations of Horizontal Well Subject to Bottom-Water Drive through Well-Testing Analysis. Geofluids. 2018. Vol. 2018, no. 2018, pp.1-14.
https://search.emarefa.net/detail/BIM-1158243
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1158243