油井压裂防砂的工艺.doc

中国石油大学（华东）毕业设计（论文）

XXXXXXX学院毕业设计（论文）

油井压裂防砂的工艺

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学号：

专业班级：

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摘要

参考国内外油井防砂技术，对某油田7217井采用了树脂涂层砂防砂工

艺。该技术是通过压裂泵车产生的高压对油层进行压裂造缝，提高导流能力，

然后对裂缝和亏空井段挤入不同粒径、不同类型的树脂砂作为支撑剂，树脂

砂在地层温度下固化形成人工井壁，达到既防止油井出砂，又提高油层导流

能力的目的。目前在采油二厂共实施油井10口，累计增产原油近5000t，

现场应用起到较好的防砂效果。

关键词：压裂；防砂；树脂涂层砂；人工井壁

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目录

第1章前言································································································1

1.1研究目的和意义·················································································1

1.2研究动向·····························································································1

1.3研究的主要内容·················································································2

第2章油层出砂原因················································································3

2.1油井出砂的危害·················································································3

2.2油井出砂的原因·················································································3

2.3出砂方式及判断油井出砂的标准·····················································6

第3章防砂工艺························································································7

3.1机械防砂····························································································7

3.2化学防砂····························································································11

3.3两种防砂工艺的对比········································································14

第4章压裂防砂·······················································································15

4.1树脂涂层砂压裂封口作用原理························································15

4.2室内试验····························································································15

4.3适用条件····························································································20

4.4施工及工艺参数设计········································································20

第5章7217井防砂工艺的应用与分析·······················