Coupling apparatus for coiled tubings of different diameters, installing method for coupling apparatus, and installing method for tubings of different diameters using coupling apparatus

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United States of America Patent

PATENT NO 11149496
APP PUB NO 20180209572A1
SERIAL NO

15879295

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Abstract

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A coupling apparatus for coiled tubings of different diameters includes a bottom joint, a top joint, and a back cap, where a gapped slip sleeve is provided on a fitting ring groove on an outer side of an upper portion of the bottom joint, and the gapped slip sleeve is coupled with the bottom joint via a rotation preventing element capable of preventing radial rotation of the gapped slip sleeve.

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Patent Owner(s)

Patent OwnerAddress
CHINA NATIONAL PETROLEUM CORPORATIONBEIJING
XINJIANG PETROLEUM ADMINISTRATION ENGINEERING TECHNOLOGY COMPANYNO 15 YONGHONG ROAD XINJIANG KELAMAYI CITY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aibaibu, Abulimiti Beijing, CN 1 0
Guo, Xinwei Beijing, CN 39 170
Pang, Dexin Beijing, CN 1 0
Wang, Jianlei Beijing, CN 17 0
Wang, Yajing Beijing, CN 4 1
Yang, Wenxin Beijing, CN 2 0
Zhao, Qian Beijing, CN 243 1622

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