[1]张利军,郑伟,王帅,等.厚层强非均质油藏部分射开试井曲线特征及影响因素[J].油气井测试,2018,27(04):1-6.[doi:10.19680/j.cnki.1004-4388.2018.04.001]
　ZHANG Lijun,ZHENG Wei,WANG Shuai,et al.Characteristics of well testing curves and influencing factors for thick and strong heterogeneous reservoirs with partial perforation[J].Well Testing,2018,27(04):1-6.[doi:10.19680/j.cnki.1004-4388.2018.04.001]
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厚层强非均质油藏部分射开试井曲线特征及影响因素()
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《油气井测试》[ISSN:1006-6977/CN:61-1281/TN]

卷:
27
期数:
2018年04期
页码:
1-6
栏目:
出版日期:
2018-08-25

文章信息/Info

Title:
Characteristics of well testing curves and influencing factors for thick and strong heterogeneous reservoirs with partial perforation
文章编号:
1004-4388(2018)04-0001-06
作者:
张利军1;  郑伟1;  王帅1;  田波1;  金海锋2
1.中海石油（中国）有限公司北京研究中心〓北京〓100027
2.中国石油大港油田公司滩海开发公司〓天津〓300280
Author(s):
ZHANG Lijun1;  ZHENG Wei1;  WANG Shuai1;  TIAN Bo1;  JIN Haifeng2
1. CNOOC Research Institute, Beijing 100027, China
2. Shallow Water Development Company, PetroChina Dagang Oilfield Company, Tianjin 300280, China
关键词:
试井; 厚层; 强非均质油藏; 窜流; 部分射开井; 试井曲线
Keywords:
well test;  thick reservoirs;  strongly heterogeneous reservoir;  crossflow;  partial perforation well;  well test curve
分类号:
TE353
DOI:
10.19680/j.cnki.1004-4388.2018.04.001
文献标志码:
A
摘要:
针对厚层强非均质油藏部分射开井试井曲线影响因素多、解释困难的问题，基于精细数值试井方法，建立厚层强非均质部分射开试井模型，绘制典型试井曲线，总结厚层强非均质油藏的部分射开井试井曲线特征。结果表明，该试井特征曲线理论上可以分为井储段，球形流段、第一径向流段、层间窜流段和全油田平均径向流段等五段。针对厚层强非均质部分射开特征，分析了层间窜流、非均质性强弱、射开程度等参数对其试井曲线的影响规律，认为层间窜流能力主要影响了试井曲线层间窜流段出现时间的早晚；非均质强弱影响两个径向流段纵向距离；部分射开主要影响试井曲线开口大小。通过影响因素敏感性分析，降低了试井模型多解性的选择，提高了试井解释精度。利用该方法，对海外某厚层油藏进行试井解释，获得不同层的物性参数和层间窜流能力，为油藏的产能评价、射孔方案编制提供了依据。
Abstract:
When partially perforated, the well test curve of the thick reservoirs with strong heterogeneous has many influencing factors, which makes its interpretation very difficult. In order to solve this problem, based on the fine numerical well test method, this paper established a well test model for the thick and strong heterogeneous reservoirs with partial perforation. According to this model, a typical well test curves were drawn, and their features were summarized. The results show that, in theory, the characteristic curves of these well tests can be divided into the following five sections: well storage section, spherical flow section, first radial flow section, interlayer channeling section and average radial flow section of the whole oilfield. According to the characteristics thick reservoirs with strong heterogeneous which was partially perforated, this paper focuses on the influence of parameters such as interlayer channeling, heterogeneity, and the degree of perforating on the well test curve. It is found that that the interlayer channeling mainly affects the time of occurrence of interlayer channeling in the well test curve; the heterogeneity affects the longitudinal distance of the two radial flow sections; and the degree of perforating mainly affects the opening size of the test curve. Through the sensitivity analysis of influencing factors, the multisolution of the well testing model is reduced, and the accuracy of well testing interpretation is improved. Using this method, the application of well test interpretation for a thick overseas reservoir was carried out. This method accurately obtains the physical parameters of different layers and the interlayer channeling capacity, which provides a basis for reservoir productivity evaluation and perforation scheme design.

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更新日期/Last Update: 2018-09-04