页岩及致密地层油气井的生产特征及可采储量计算方法

doi:10.13809/j.cnki.cn32-1825/te.2021.02.002

摘要/Abstract

摘要：

作为页岩及致密地层油气藏开发的重要经济指标之一,页岩及致密地层油气井的产量预测及可采储量计算是非常规油气藏工程中非常重要的一项工作。因此,无论国内还是国外都把产量预测及可采储量的计算作为研究的重要课题,也是非常规油气藏工程师所面临的挑战之一。通过对页岩及致密地层油气藏的地质特征的描述,分析了页岩及致密地层油气藏生产井的生产产量特征。从生产特征出发,阐述常规油气藏计算储量及预测产量方法对页岩及致密地层低渗透油气藏油气井计算的不适用性。结合国际石油工程评价委员会（SPEE）建议的方法,最终提出计算页岩及致密地层生产井的产量预测及可采储量计算方法及工作流。应用实例说明了计算工作流的正确性。

关键词: 页岩, 致密, 生产特征, 产量预测, 可采储量计算

Abstract:

As one of the important economic indicators for the development of shale/tight reservoirs, the production performance and EUR calculation of shale/tight wells is an important subject in unconventional reservoir engineering. This has been challenging for the reservoir engineers from both China and other country for a dozen of years. Based on the understanding of the unique geological characteristics of shale/tight reservoirs, this paper describes in detail the production performance of those wells producing extremely tight reservoirs, from which the inapplicability of using traditional methods has been explained. Further, a new methodology and the workflow has been presented from SPEE recommendations, and one practical example has also been illustrated of implementing the workflow.

Key words: shale, tight formation, production behavior, production forecast, EUR estimation

中图分类号:

TE32

YU Shaoyong,刘玉慧. 页岩及致密地层油气井的生产特征及可采储量计算方法[J]. 油气藏评价与开发, 2021, 11(2): 146-153.

YU Shaoyong,LIU Yuhui. Production performance and EUR forecast of wells producing from tight/shale reservoirs[J]. Reservoir Evaluation and Development, 2021, 11(2): 146-153.

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