各向异性断块油藏水平井产能公式的推导

doi:10.7623/syxb201712009

石油学报 ›› 2017, Vol. 38 ›› Issue (12): 1420-1424.DOI: 10.7623/syxb201712009

各向异性断块油藏水平井产能公式的推导

陈元千¹, 郭二鹏¹, 彭子璇², 王梦颖¹, 周游¹

1. 中国石油勘探开发研究院北京 100083;
2. 中国地质大学能源学院北京 100083

收稿日期:2017-03-06 修回日期:2017-07-21 出版日期:2017-12-25 发布日期:2018-01-05
通讯作者: 陈元千,男,1933年10月生,1952年考入清华大学石油工程系,1956年毕业于北京石油学院钻采系,中国石油勘探开发研究院教授级高级工程师,长期从事油藏工程、油气田开发和油气储量评估工作。
作者简介:陈元千,男,1933年10月生,1952年考入清华大学石油工程系,1956年毕业于北京石油学院钻采系,中国石油勘探开发研究院教授级高级工程师,长期从事油藏工程、油气田开发和油气储量评估工作。

Derivation of productivity formulas for horizontal wells in anisotropic fault-block reservoirs

Chen Yuanqian¹, Guo Erpeng¹, Peng Zixuan², Wang Mengying¹, Zhou You¹

1. PetroChina Research Institute of Petroleum Exploration and Development, Beijing 100083, China;
2. School of Energy Resources, China University of Geosciences, Beijing 100083, China

Received:2017-03-06 Revised:2017-07-21 Online:2017-12-25 Published:2018-01-05

摘要/Abstract

摘要：

封闭性断块油藏在中国分布广泛，具有较多原始地质储量和剩余可采储量，因此评价断块油气藏水平井的产能方法具有重要意义。利用水电相似原理和等值渗流动阻力法，对于布井位置不同的断块油藏，在考虑油层渗透率各向异性条件下，得到了预测水平井产能的公式和水平井产量与水平井长度成正比的直线关系。通过应用实例表明，对于断块油藏，水平井布置在油层中央时的产能显著高于布置在边部的产能，这主要由于前者的流动阻力明显低于后者；不同垂向拟平面径向流的半径，对水平井产能的影响较小，且水平井的产能主要受控于线性流动区的阻力。

关键词: 断块油藏, 各向异性, 水平井, 产能公式, 推导, 应用

Abstract:

The sealed fault-block oil reservoirs are widely distributed in China, which possess plenty of original oil in place (OOIP)and residual recoverable reserves. Therefore, it is of great significance to evaluate the production methods of horizontal wells in fault-block hydrocarbon reservoirs. Based on water-electricity similarity principle and equivalent seepage dynamic resistance method, and in consideration of heterogeneous reservoir permeability, the prediction formulas of horizontal well productivity in the fault-block reservoirs with different well locations were obtained as well as the linear relationship of horizontal well production in direct proportion to horizontal well length. For fault-block oil reservoirs, the application cases show that the horizontal well productivity in central reservoir is significantly larger than that at the edges, which is mainly because the flow resistance of the former is obviously lower than that of the latter; the radial flow radius of different vertical quasi-plane has less influences on horizontal well productivity, while the horizontal well productivity is mainly controlled by the resistance of linear flow region.

Key words: fault-block oil reservoir, anisotropy, horizontal well, productivity formula, derivation, application

中图分类号:

TE328

陈元千, 郭二鹏, 彭子璇, 王梦颖, 周游. 各向异性断块油藏水平井产能公式的推导[J]. 石油学报, 2017, 38(12): 1420-1424.

Chen Yuanqian, Guo Erpeng, Peng Zixuan, Wang Mengying, Zhou You. Derivation of productivity formulas for horizontal wells in anisotropic fault-block reservoirs[J]. Acta Petrolei Sinica, 2017, 38(12): 1420-1424.

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各向异性断块油藏水平井产能公式的推导

Derivation of productivity formulas for horizontal wells in anisotropic fault-block reservoirs

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