深井和大位移井套管磨损程度预测

梁尔国; 李子丰; 王长进; 韩东颖

doi:10.3969/j.issn.1001-0890.2013.02.013

深井和大位移井套管磨损程度预测

doi: 10.3969/j.issn.1001-0890.2013.02.013

燕山大学车辆与能源学院, 河北秦皇岛 066004

详细信息

作者简介:
梁尔国(1970-),山东郓城人,1995年毕业于北京理工大学机电工程专业,2004年获石油大学(华东)油气井工程专业硕士学位,机械设计及理论专业在读博士研究生,主要从事油气井管柱力学方面的理论与实验研究。联系方式(0335)8079211,liangerguo@163.com。

中图分类号: TE28⁺1
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出版历程
- 收稿日期: 2012-05-26
- 修回日期: 2012-12-10
- 刊出日期: 2013-04-19

Casing Abrasion Prediction for Deep and Extended Reach Wells

College of Vehicles and Energy, Yanshan University, Qinhuangdao, Hebei, 066004, China

摘要

摘要: 为提高套管柱强度设计准确性,防止磨损失控情况发生,深入分析了套管磨损预测技术。结合定向井钻柱力学研究成果,考虑钻柱刚度和屈曲的影响,推导了深井和大位移井的钻柱拉力-扭矩方程,建立了基于能量原理的套管磨损程度预测模型,并编制了预测软件。该预测软件可以预测包括钻进、起下钻具等作业过程的,不同套管柱层次、钻具组合、井眼轨迹、钻井液类型和钻井参数等情况的全井段不同井深所对应的套管磨损量。实例计算结果表明,编制的预测软件减小了人为的估计误差,预测值更为准确可靠。研究成果为深井和大位移井安全高效钻进提供了新的技术支持。
- 深井 /
- 大位移井 /
- 钻柱 /
- 套管磨损 /
- 数学模型
Abstract: In order to improve the design of casing strength and prevent severe casing wear out,casing abrasion prediction technology was analyzed.The tension-torque equation of drill string in deep wells and extended reach wells was deduced through identifying the drill string mechanics for directional wells,and considering stiffness and buckling of drill string.The prediction model of casing abrasion was established according to the energy principle and prediction software was developed.The software can predict casing abrasion at different depths in hole,for different casing program,BHA,well track,drilling fluid types and drilling parameters,during drilling and tripping.Its application shows that the software can give a more accurate and reliable prediction,with less artificial error.It provides new technical support to ensure safe and efficient drilling of deep wells and extended reach wells.
- deep well /
- extended reach well /
- drill stem /
- casing abrasion /
- prediction

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参考文献(13)

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