US 12,345,118 B2
Downhole plug device, tube affixing method, and tube inspection method
Ramu Miike, Tokyo (JP)
Assigned to KUREHA CORPORATION, Tokyo (JP)
Appl. No. 18/573,253
Filed by KUREHA CORPORATION, Tokyo (JP)
PCT Filed Feb. 16, 2022, PCT No. PCT/JP2022/006066
§ 371(c)(1), (2) Date Dec. 21, 2023,
PCT Pub. No. WO2023/276248, PCT Pub. Date Jan. 5, 2023.
Claims priority of application No. 2021-109530 (JP), filed on Jun. 30, 2021.
Prior Publication US 2024/0309725 A1, Sep. 19, 2024
Int. Cl. E21B 33/12 (2006.01); E21B 47/117 (2012.01)
CPC E21B 33/1208 (2013.01) [E21B 33/12 (2013.01); E21B 47/117 (2020.05); E21B 2200/08 (2020.05)] 9 Claims
OG exemplary drawing
 
1. A downhole plug device to be used for temporarily sealing a tubular body to be inserted into a well by fitting into the tubular body at a tip of the tubular body, the downhole plug device comprising:
a housing having a cylindrical shape;
a plug that is inserted into the housing from one end of the housing and abuts one end surface of the housing to seal the housing; and
a fixing part that is inserted through the plug along an axial direction of the housing and fixes the plug to the one end surface of the housing.