水井调剖效果评价及建议
Evaluation on Water Well Profile Control Effect and Proposal
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- 引用格式:
-
宋刚祥,曹勋臣,张远弟.水井调剖效果评价及建议[J].天然气与石油,2013,31(3):0.doi:
.Evaluation on Water Well Profile Control Effect and Proposal[J].Natural Gas and Oil,2013,31(3):0.doi:
- DOI:
- 作者:
- 宋刚祥 曹勋臣 张远弟
- 作者单位:
- 长江大学石油工程学院
- 关键词:
- 注水井；调剖 ；吸水剖面 ；劳伦兹曲线 ；定量评价
Water injection well； Profile control； Water absorption profile； Lorentz curve； Quantitative evaluation
- 摘要:
- 注水开发油田为缓解油层层间和层内矛盾，常用调剖剂来改善吸水剖面，目前国内外通常是定性评价调剖效果。为此，利用注水井调剖措施前后吸水剖面的资料分析调剖效果，结合数理统计公式及劳伦兹曲线对调剖措施效果进行了定量研究，定义了水井调剖前后劳伦兹曲线的不均匀系数、水井调剖变异系数、吸水剖面均质系数、吸水剖面突进系数，定量刻画调剖措施改善吸水剖面的均质程度，弥补了定性判断调剖是否有效的缺陷。通过油田现场实际资料分析认为水井调剂具有较好的应用效果。
In waterflood oilfield development， profile control agent is commonly used to improve the injection profile in order to ease contradictions between oil layers and in oil layer. At present， profile control effect is evaluated by qualitative method or only by experience at home and abroad. For this purpose， applied are data of water injection profile before and after taking water injection profile control measures to analyze the profile control effect and combined are formula and Lorentz curve to conduct quantitative research on reversal effect of profile control measures. Defined are the uneven coefficients of Lorentz curve before and after well profile control， variable coefficient of well profile control， water absorption profile homogeneous coefficient and water absorption profile dash coefficient to quantitatively depict the homogeneous degree of profile control measures to improve the water absorption profile and determine the efficiency of profile control. Analysis results obtained from actual data of oil fields show that the application effect is good.
