[1]景琛.基于超压成因机制的压力预测方法与应用[J].测井技术,2018,42(04):460-465.[doi:10.16489/j.issn.1004-1338.2018.04.017]
 JING Chen.Pressure Predicting Methods Based on Overpressure Genetic Mechanisms and Its Application[J].WELL LOGGING TECHNOLOGY,2018,42(04):460-465.[doi:10.16489/j.issn.1004-1338.2018.04.017]
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基于超压成因机制的压力预测方法与应用()
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《测井技术》[ISSN:1004-1338/CN:61-1223/TE]

卷:
第42卷
期数:
2018年04期
页码:
460-465
栏目:
综合应用
出版日期:
2018-09-05

文章信息/Info

Title:
Pressure Predicting Methods Based on Overpressure Genetic Mechanisms and Its Application
文章编号:
1004-1338(2018)04-0460-06
作者:
景琛
景琛
Author(s):
JING Chen
JING Chen
关键词:
压力预测 等效深度法 Eaton法 预测参数优选 超压成因 渤南洼陷
Keywords:
Keywords: pressure prediction equivalent depth method Eaton method prediction parameter optimization overpressure cause Bonan depression
分类号:
P631.84
DOI:
10.16489/j.issn.1004-1338.2018.04.017
文献标志码:
A
摘要:
在等效深度法和Eaton法适用条件及压力预测各环节误差分析的基础上,探讨了预测参数的优选方法以及预测方法选择的依据。超压成因机制是压力预测方法优选的最主要依据,等效深度法主要适用于欠压实成因超压预测,Eaton法适用于多种成因超压的预测。对于超压凹陷,通过分构造带优选正常压实趋势线、三段式拟合上覆岩层密度—深度关系曲线以及迭代法确定伊顿指数c值,可以最大限度地减小预测压力的误差。以渤南洼陷地层孔隙压力预测为例,在以生烃超压为主的构造带,采用Eaton法预测误差较低,而在以欠压实超压为主的构造带,等效深度法预测效果较好。
Abstract:
Abstract: Based on the analysis of the applicable condition sand the error of each pressure prediction link of the equivalent depth method and the Eaton method, the optimal methods of prediction parameters and the basis for the selection of prediction methods are discussed. The overpressure mechanism is the most important basis for the selection of pressure prediction method. The equivalent depth method is mainly applied to over pressure prediction caused by under-compact. The Eaton method is applicable to the overpressure prediction by multiple causes. For the overpressure depression, the error of the predicted pressure can be minimized by selecting the normal compaction trend line according to the tectonic zone, three-stage fitting overburden rock density-depth relationship curve and using iterative method to determine the Eaton index c. Taking the prediction of formation pore pressure in the Bonan depression as case study, in the tectonic zone dominated by hydrocarbon generation overpressure, the prediction error is lower by the Eaton method, while the prediction performance of the equivalent depth method is better in the tectonic zone dominated by under-compacting overpressure.

参考文献/References:

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相似文献/References:

[1]褚人杰.用测井资料预测地层的孔隙压力[J].测井技术,1981,05(06):2.

备注/Memo

备注/Memo:
作者简介: 景琛,男,1992年生,硕士研究生,从事油气地质与勘探研究。E-mail:932998313@qq.com
更新日期/Last Update: 2018-09-05