2017年2月第36卷第1期
大庆石油地质与开发
Petroleum Geology and Oilfield Development in Daqing
DOI:10.3969/J.ISSN. 1000-3754.2017. 01. 011
分段压裂水平井非稳态渗流产能分析
杨正明"2杨惟文’王学武2
Feb.. 2017 Vel. 36 No. 1
（1.中国科学院渗流流体力学研究所，河北摩坊065006；2、中国石油勘探开发研究院南坊分院，河北廊坊065006）摘要：应用Green函数和Newman积原理，考虑裂缝导流能力随时间衰减因索和多条裂缝间干扰因素，推导出分段压裂水平井非稳态条件下的产能公式和计算方法，实现了产量随时间变化以及单条裂缝产量的计算。计算结果表明：裂缝干扰条件下与裂缝互不干扰条件下水平井产量差距较大；裂缝无限导流情况下与裂缝有限导流情况下水平井产量有明显差距；裂缝所处位置对裂缝产量衰减程度有一定的影响；裂缝导流能力衰减强度对水平井产量也有-一定的影响。
关键词：分段压裂水平井；非稳态；裂缝导流能力；产能模型
文章编号：1000-3754（2017）01-0065-05
中图分类号：TE355.6
文献标识码：A
PRODUCTIVITYANALYSISOFTHEUNSTEADY-STATEFLOWFOR
THEMULTI-STAGEFRACTUREDHORIZONTALWELL
YANG Zhengming"-2, YANG Weiwen', WANG Xuewu”
(1. Institute of Porous Flow and Fluid Mechanics, Academy of Chinese Sciences,Langfang 065006, China; 2. Langfang Branch of PetroChina Research Institule of Petroleum Exploration & Development,
Langfang 065006，China)
Abstract : With the help of Green Function and Newman's Product principle, considering the factors of the fracture conductivity decay with the time and disturbances among the multiple fractures, the productivity formulas and cal-culating methods were deduced for the multi-stage fractured horizontal well under the condition of unsteady state, thus the changes of the production with the time and calculation of the individual crack production were determined. The computed results show that the production contrast between the interference and non-crack interferences is rath-er serious for the well; the gap is also obvious between the conditions of infinite conductivity and finite conductivity of the cracks; the fracture locations have a certain influences on the fracture yield attenuation; and furthermore so has the attenuated degree on the production of the horizontal well.
Key words: staged/multi-stage fractured horizontal well; unsteady state/condition; fracture conductivity; produc tivity model
近年来，致密油藏的勘探开发越来越具有重要
收稿日期：2016-07-01
改回日期：2016-09-27
的战略地位。分段压裂水平井技术能够改变近井地
基金项目：国家油气重大专项（2011ZX05013-006）；中国石油天然气集团公司重大基础攻关课题（2014B-1203）。
作者简介：杨正明，男，1969年生，高级工程师，博士，从事低渗透油藏储层评价、非线性数值模拟及渗流理论研究。
E-mail : yzhm69@ petrochina. com. cn
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