四川大学学报（自然科学版）2024，Vol.61Issue(4)：47-53,7.DOI:10.19907/j.0490-6756.2024.041001
一种计算变形套管通过能力的新方法
A novel method for calculating the running ability of deformed casing
摘要
Abstract
The study of passage capability of specific tools through deformed casings is significance in the pro-duction of oil and gas.In this paper,the maximum attainable length of tools with fixed cross-sectional radius in bent or deformed casing sections is considered.Based on the multi-arm wellbore data and well information,a new computational model is developed for the calculation of maximum inscribed circle at various depth points.Three-dimensional passage capability of deformed casings is determined by using the geometric model-ing.In terms of the processing multi-arm wellbore data,a mode iteration search method is proposed to over-come the limitation of calculation accuracy of the least squares method and the issue of inscribed circle exceed-ing boundaries.An example is given to show that,comparing with the least squares method,the new method can effectively reduce the calculation error and prevent the inscribed circle from exceeding boundaries with a slightly lower computational efficiency.It is expected that the obtained results can be exploited to improve the production efficiency of oil and gas.关键词
水平井/套管/最大内切圆/多臂井径仪/可下入性Key words
Horizontal well/Casing/Maximum inscribed circle/Multi-arm caliper/Running ability分类
数理科学引用本文复制引用
樊成凯,周文高,胡朝浪,冯民富..一种计算变形套管通过能力的新方法[J].四川大学学报（自然科学版）,2024,61(4):47-53,7.基金项目
国家自然科学基金(11971337) （11971337）
