利用岩心资料估测地下一组裂缝分布的原理和应用

尹中民; 单业华

doi:10.11781/sysydz199904346

利用岩心资料估测地下一组裂缝分布的原理和应用

doi: 10.11781/sysydz199904346

尹中民¹,
单业华²

1.
中国科学院长沙大地构造研究所, 410013
2. 青岛海洋大学海洋地球科学学院, 266003

基金项目: 青岛海洋大学青年教师基金

详细信息

作者简介:
尹中民(1964- ),男(汉族),河南南阳人,博士生,主要从事盆地构造分析研究。

中图分类号: TE122.2
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- 被引次数: 0
出版历程
- 收稿日期: 1998-11-02
- 刊出日期: 1999-10-28

PRINCIPLE AND APPLICATION OF ESTIMATION ON THE DISTRIBUTION OF A SET OF SUBSURFACE FRACTURES BY CORE DATA

YIN Zhong-min¹,
SHAN Ye-hua²

1.
Changsha Institute of Geotectonics, Academia Sinica, Chabgsha, Hunan 410013, China
2. College of MarineEarth Earth Sciences, Qingdao Umiversity of Oceanography, Qingdao, Shandong 266003, Chuna

摘要

摘要: 本文提出一种利用岩心资料估测地下一组裂缝分布的新方法。它需要事先给出裂缝分布型式,才能找出具有给定分布型式的最佳裂缝分布,对于估测一般不确知的地下裂缝分布,可以依次选取不同的分布型式重复采用上述方法,然后比较各自的最小目标函数值,其中具有最小值的就可以认为是实际裂缝分布的最好近似。实例应用表明,当裂缝型式选取合适,上述方法的估测结果与实测值相近,从而能给出实际裂缝分布的最好估测,与Narr和Lerche(1984)的方法相比以下,本方法适用性更广,进而能为油田开必提供更为切合实际、复杂的储层裂缝模型。
- 估测 /
- 裂缝分布 /
- 优化
Abstract: A new method to estimate the distribution of a set of subsurface fractures by core data is suggested in this paper.In order to find out optimum distribution of fractures with a given distributive pattern,the pattern must be known in advance.When estimating the distribution of generally undetermined subsurface fractures,the method mentioned above can be used repeatedly selecting different distributive patterns in turn. Then,the respective minimum target function values are compared. Among them, the one with minimum can be considered as the best approximation to practical fracture distribution. Case applications show that if fracture patterns are selected properly, the estimated results from the above-mentioned method are close to measured values;the best estimates for practical fracture distribution can be obtained theredy.
- estimation /
- the distribution of fractures /
- optimization

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参考文献(9)

[1]	Von Golf-Racht T.D.Fundamentals of fractured reservoir engineering. Amsterdam,Netherands,Elsevier Publishing Co.1982,710
[2]	Narr,W.& Lerche I.A methid for estimating subsurface fracture density in core. AAPG Bull.1984,68:637～648
[3]	Mc Quillan H.Small-scale fracture density in Asmari Formation of southwest Iran and its relation to brd thickness and structural setting. AAPG Bull.1977,57:2367～2385
[4]	Wu H.& Pollard D.D.An experimental study of the relationship between joint spacing and layer thickness. J.Struct. Geol.1995,17:887～905
[5]	Aguilera R.Determination of subsurface distance between vertical parallel natural fractres based on core data. AAPG Bull.1988,72:845～851
[6]	Narr.W.Fracture density in the deep subsurface:techniques with application to Point Arguello Oil Filed. AAPG Bull.1991,75:1300～1323
[7]	Kirkpatrick.S.Gelatt.D.D.Jr.& Vecchi.M.P.Optimization by simulated annealing Science,1983,220:67
[8]	Datta-Gupta.A.Vasco.D.E,Long.J.C.S,D’Onfro.P.S.& Rizer.W.D.Detailed characterization of a fractured limestonne formation by use of stochastic inverse approaches. SPE Formation Evaluation,1995,133～140
[9]	单业华,李志安,曾联波。估测地下天然裂缝间距指数的新方法。石油勘探与开发,1997,25:74～76