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首页> 外文期刊>Energy Exploration & Exploitation >Economic Exploration Assessment of Hydrocarbon Leakage Across a Fault. Ⅲ. Hydrocarbon Leaks and Fault Locations
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Economic Exploration Assessment of Hydrocarbon Leakage Across a Fault. Ⅲ. Hydrocarbon Leaks and Fault Locations

机译:断层油气泄漏的经济勘探评估。 Ⅲ。油气泄漏和断层位置

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摘要

This paper addresses the concerns of potential hydrocarbon leakage through a fault when there are changes in the location of the fault, its orientation, and its length in relation to a given sand body of known width. The probability that hydrocarbons interact with the fault is expressed in terms of the overlap length of the fault in the sand, and in terms of the sand width as well. When the probability that the fault is open or shut to hydrocarbon flow is added to the geometric probabilities as a basic variable, the uncertainties of the five parameters (fault length, sand body width, fault orientation, fault location in relation to the sand body, and probability the fault is open to hydrocarbon escape) are addressed in terms of Monte Carlo representations of the chances of retaining or losing hydrocarbons. The dominant contributions to the uncertainties of the fraction of hydrocarbons most likely lost or retained are also given so that one can determine which of the five basic parameters need to have their ranges of uncertainty narrowed first in order to improve on the probable estimates of hydrocarbon retention. Numerical illustrations are given to show how one goes about assessing these factors for a sand cut by a fault, and to illustrate the chances that the sand is hydrocarbon bearing or not due to possible loss through the fault.
机译:当断层的位置,方向和长度相对于已知宽度的已知砂体发生变化时,本文解决了通过断层潜在的碳氢化合物泄漏的问题。碳氢化合物与断层相互作用的可能性用断层在砂中的重叠长度以及砂的宽度表示。当断层对烃类流开放或关闭的概率作为基本变量添加到几何概率中时,这五个参数(断层长度,砂体宽度,断层方向,断层相对于砂体的位置,以及断层有可能逸出碳氢化合物的可能性)用保留或丢失碳氢化合物的机会的蒙特卡洛表示法来解决。还给出了最有可能丢失或保留的碳氢化合物部分不确定性的主要贡献,以便可以确定五个基本参数中的哪一个首先需要使其不确定性范围变窄,以便改进碳氢化合物保留的可能估计值。 。给出了数字插图,以显示如何评估由断层切割的砂的这些因素,并说明由于断层可能造成的损失而导致砂含烃的可能性。

著录项

  • 来源
    《Energy Exploration & Exploitation》 |2005年第3期|p.181-194|共14页
  • 作者

    Ian Lerche;

  • 作者单位

    Institut fuer Geophysik und Geologie Universitaet Leipzig, Talstrasse 35, 04103 Leipzig, Germany;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 能源与动力工程;
  • 关键词

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