线性递减类型的建立、对比与应用

doi:10.7623/syxb201508009

石油学报 ›› 2015, Vol. 36 ›› Issue (8): 983-987.DOI: 10.7623/syxb201508009

线性递减类型的建立、对比与应用

陈元千, 周翠

中国石油勘探开发研究院北京 100083

出版日期:2015-08-25 发布日期:2015-08-06
通讯作者: 周翠,女,1991年6月生,2013年毕业于成都理工大学石油工程专业,现为中国石油大学(北京)硕士研究生、中国石油勘探开发研究院实习生,主要从事油气藏工程、油藏数值模拟方面的研究。Email:1099690612@qq.com
作者简介:陈元千,男,1933年10月生,1956年毕业于北京石油学院钻采系,现为中国石油勘探开发研究院教授级高级工程师,主要从事油气藏工程、油气田开发和油气储量评价方面的科研、教学与评估工作。Email:cyq@petrochina.com.cn

Establishment, comparison and application of the linear decline type

Chen Yuanqian, Zhou Cui

PetroChina Research Institute of Petroleum Exploitation and Development, Beijing 100083, China

Online:2015-08-25 Published:2015-08-06

摘要/Abstract

摘要：

产量递减阶段是油气田开发的主要阶段。产量递减法是预测油气田产量和可采储量的重要方法。该方法的有效应用与储层类型、驱动类型和开采方式无关,只要油气田的产量已进入递减阶段,即可应用产量递减法进行有效预测。Arps提出的指数递减、双曲线递减和调和递减,尤其是指数递减和双曲线递减,在国内外的产量预测和可采储量评价中得到了广泛的应用。然而,Arps的3种递减类型,只适用于产量随时间呈曲线递减,而不适用于呈直线递减。实际油田生产资料表明,对于致密低渗砂岩油气藏,压裂投产后的产量与时间之间往往不是曲线递减关系,而是直线递减。因而,Arps的3种递减类型,已不适用于直线递减的产量和可采储量的预测。经过推导建立了线性递减类型,该类型既是一种新的递减类型,又是对Arps递减类型的补充。经应用实例表明,线性递减类型是实用有效的,所提出的预测产量、累积产量和可采储量的方法,具有很好的实用价值和理论意义。

关键词: 产量, 递减类型, 线性递减, Arps递减, 低渗透油气藏

Abstract:

The production decline method is an important method to predict the production of oil and gas fields and its recoverable resources in the depletion stage. Additionally, its application is independent of reservoir type, drainage mode and production method and it is applicable since the production begins to decrease. Three Arps decline types (exponential decline, hyperbolic decline and harmonic decline), especially exponential decline and hyperbolic decline, are widely used in production prediction and recoverable reserves estimation in China and abroad. However, Arps decline is only applicable to the curvy decline, and it does not match the linear decline condition. While observation data from field production presents a linear relationship between production and time in hydraulic fractured tight-low permeable sandstone oil and gas reservoirs. In such case, Arps decline type, which is only applicable to curvy decline relationships, are inapplicable at all. The linear decline type obtained through theoretical derivation in this paper is not only a new decline type, but also a supplement of Arps decline types. Based on the linear relationship of production and time, the equations to predict production, cumulative production, and recoverable reserves are obtained through theoretical derivation and has vital theoretical significance and practical value. Through field test, the linear decline type proposed in this paper is practical and effective.

Key words: production, decline type, linear decline type, Arps decline type, low permeability reservoir

中图分类号:

TE328

陈元千, 周翠. 线性递减类型的建立、对比与应用[J]. 石油学报, 2015, 36(8): 983-987.

Chen Yuanqian, Zhou Cui. Establishment, comparison and application of the linear decline type[J]. Acta Petrolei Sinica, 2015, 36(8): 983-987.

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线性递减类型的建立、对比与应用

Establishment, comparison and application of the linear decline type

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