小口径勘探用可膨胀波纹管ANSYS模拟与实验分析  

ANSYS Simulation of Expandable Convoluted Tubing for Small Diameter Bore Prospecting and Experimental Analysis

作　　者：陈晓君[1,2] 宋刚[2] 孟庆鸿[2] 邵玉涛[2] 张化民[2] 

机构地区：[1]河南理工大学,河南焦作454000 [2]中国地质科学院勘探技术研究所,河北廊坊065000

出　　处：《探矿工程（岩土钻掘工程）》2014年第11期37-40,45,共5页Exploration Engineering:Rock & Soil Drilling and Tunneling

基　　金：国土资源部公益性行业科研专项项目"马坑矿区复杂地层膨胀管技术的应用研究"(201311059)

摘　　要：可膨胀波纹管技术是通过对圆形管材进行特殊工艺处理,使管径发生变形以便其顺利通过井孔到达问题地层,然后通过液压膨胀复原,达到修井固井的目的。经过多年的技术发展,此技术已在石油工程中得到很多实践应用,但是在口径相对较小的地质勘探孔中,由于受口径以及工艺技术等限制,尚未有相关应用。主要针对材料编号为KP02的75 mm小口径梅花状可膨胀波纹管进行研究,通过利用ANSYS有限元软件进行模拟以及实验室实验,得到其膨胀变形参数并对其膨胀过程进行对比分析。Expandable convoluted tube technology is based on a special process on round tubing to make the tubing deformed so as to it can smoothly reach the trouble formation through the borehole; then by hydraulic expansion recovery,workover and cementing are realized. This technology has been used in petroleum engineering a lot after its many years＇ development,but due to the confinement of the diameter and technology,it has not been applied in geological prospecting with smaller diameter. This paper presents the study that is mainly based on 75mm small diameter quincuncial shape expandable convoluted tube being made of KP02 seamless steel tube,expansive transformation parameters are obtained by simulation with ANSYS finite element software and indoor experiments,and the contrast and analysis are made on the expanding process.

关 键 词：可膨胀波纹管 地质勘探 小口径钻孔 ANSYS模拟分析 

分 类 号：P634[天文地球—地质矿产勘探]