[1]罗勇.海上延长测试过程钻井隔水导管力学特性[J].石油钻采工艺,2018,40(6):690-694.[doi:10.13639/j.odpt.2018.06.003]
 LUO Yong.Mechanical characteristics of drilling riser in the process of offshore extended well testing[J].Oil Drilling & Production Technology,2018,40(6):690-694.[doi:10.13639/j.odpt.2018.06.003]
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海上延长测试过程钻井隔水导管力学特性
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《石油钻采工艺》[ISSN:1000-7393/CN:13-1072/TE]

卷:
40卷
期数:
2018年6期
页码:
690-694
栏目:
钻井完井
出版日期:
2018-11-20

文章信息/Info

Title:
Mechanical characteristics of drilling riser in the process of offshore extended well testing
文章编号:
1000 – 7393( 2018 )06 – 0690 – 05
作者:
罗勇
中海石油(中国)有限公司上海分公司
Author(s):
LUO Yong
CNOOC China Limited Shanghai Branch, Shanghai 200335, China
关键词:
海上延长测试钻井隔水导管力学特性有限元分析
Keywords:
offshore extended well testing drilling riser mechanical characteristics finite element analysis
分类号:
TE52
DOI:
10.13639/j.odpt.2018.06.003
文献标志码:
A
摘要:
延长测试作业已成为海上油田获取产能参数、准确评价油气藏的重要手段。由于延长测试作业周期长且会遭遇恶劣海况,隔水导管稳定性是保证作业安全的关键因素。针对恶劣海况下隔水导管稳定性问题,从延长测试井井身结构特点入手, 分析了延长测试过程中隔水导管受力特点,建立了隔水导管力学模型,得到在极限载荷条件下最大等效应力出现在水面附件, 此位置的隔水导管是延长测试作业管柱危险点。结合东海海况条件和该井地质条件,设计了延长测试井隔水导管几何参数,利用有限元模拟软件ANSYS 建立了延长测试过程隔水导管力学模型,并对模型施加环境载荷及约束,计算了导管力学特性,与现场测量值进行对比验证了所建立模型的可靠性。
Abstract:
With the efficient development of offshore oil and gas, the extended well testing has become an important means to obtain production capacity parameters and evaluate oil and gas reservoirs accurately. The extended well testing has long operation cycle and it may undergo the harsh sea conditions, so the stability of riser is a key factor to ensure the operation safety. To study the stability of riser under the harsh sea conditions, we analyzed the stress characteristics of the riser in the process of the extended well testing with the casing program characteristics of the extended well testing well as the beginning point. Then, the mechanical model of the riser was established. It is revealed that the maximum equivalent stress under the extreme load occurs near the water surface, where the riser is the dangerous point of the extended well testing string. Finally, based on the sea conditions in the East China Sea and the geological conditions of the well, the geometric parameters of the riser in the extended well testing well were designed and the mechanical model for the riser in the process of extended well testing was established by using the finite element simulation software ANSYS. In addition, the mechanical characteristics of the riser were calculated by applying the environmental loads and constraints to the model, and then compared with the on-site measurement to verify the reliability of the new model.

相似文献/References:

[1]黄 鑫 谢玉洪 杨 进 谢仁军 李 中 黄 熠 宋文礼.海上钻井隔水导管导向孔位置优化研究[J].石油钻采工艺,2009,31(3):010.
 HUANG Xin,XIE Yuhong,YANG Jin,et al.Optimization study of drilling riser guiding holes[J].Oil Drilling & Production Technology,2009,31(6):010.

更新日期/Last Update: 2019-04-10