石油钻采工艺2017，Vol.39Issue(5)：646-651,6.DOI:10.13639/j.odpt.2017.05.020
人工隔层技术在控缝高压裂井中的应用
Application of artificial barrier technology to fracture height control in fracturing wells
谷文彬 1裴玉彬 2赵安军 1王涛 2蔡军 1吴凯凯2
作者信息
- 1. 中国石油华北油田公司勘探事业部
- 2. 山东科瑞石油工程技术研究院
- 折叠
摘要
Abstract
In the process of fracturing, fractures can run through barriers whose their barrier capacity is poorer. And if the aquifer is closer to the producing zone, water cut will rise sharply and fracturing effect will be impacted and even fail. To increase the success ratio of fracturing operation, the fracture height control technology was studied deeply in this paper. The floating diversion agent and settling diversion agent of artificial barrier were experimentally analyzed in terms of floating rate, settling rate, relative floating speed, relative settling speed and barrier stress improvement rate. And accordingly, floating diversion agent KR2 (floating rate 97%, relative floating speed 1.78 and breakthrough pressure increase 7.23 MPa) and settling diversion agent KR4 (settling rate 98%, relative settling speed 1.83 and breakthrough pressure increase 6.29 MPa) were adopted. In the field test, the adding of floating diversion agent implements the best control on fracture height extension, presenting remarkable fracture height control effect. It can be used as the reference for the construction of fracturing wells with fracture height control.关键词
水力压裂/人工隔层/上转向剂/突破压力/控缝高Key words
hydraulic fracturing/artificial barrier/floating diversion agent/breakthrough pressure/fracture height control分类
能源科技引用本文复制引用
谷文彬,裴玉彬,赵安军,王涛,蔡军,吴凯凯..人工隔层技术在控缝高压裂井中的应用[J].石油钻采工艺,2017,39(5):646-651,6.
