CAJ | 학술논문

对139．7 mm×7．72 mm N80钢级实体膨胀管实物膨胀过程进行了试验研究。基于实体膨胀管实物评价试验平台，设计了试验方案和检测方法，对比分析了实体膨胀管膨胀前、后几何参数变化。结果表明：实体膨胀管经膨胀变形后其外径椭圆度变大，均匀性显著变差，壁厚均匀性变化受膨胀变形的影响并不显著。
대139．7 mm×7．72 mm N80강급실체팽창관실물팽창과정진행료시험연구。기우실체팽창관실물평개시험평태，설계료시험방안화검측방법，대비분석료실체팽창관팽창전、후궤하삼수변화。결과표명：실체팽창관경팽창변형후기외경타원도변대，균균성현저변차，벽후균균성변화수팽창변형적영향병불현저。
Experimental study have been conducted for solid expandable tubular of 139.7 mm× 7.72 mm N80 on a full-scale test-rig.Based on an expansion evaluation device designed by TGRC, the test scheme and inspection method have been designed.A comparative analysis of the change of geometric parameters of solid expandable tubular before and after expansion have been conduc-ted.The results showed that the ovality was significantly increased after expansion,but the eccen-tricity did not change obviously.