年表作成・共有サービス - pastport

https://www.saigaogroup.com/product/lifting--releasing-and-circulating-overshot.html

Lifting-releasing and circulating overshot is a fishing tool used to retrieve the fractured tubing and drill string in the casing. If the drill string is stuck badly and hard to complete fish work, while need to release fish, may get back the tool by bumping drill string downward and lift up directly.

Technical Specification of Lifting-releasing and Circulating Overshot:
ModelProduct CodeO. D.(mm)ConnectionCatch Size (in)
TFLT48L05-480095NC261.9
TFLT60L05-6000105NC312 3/8
TFLT73L05-7300115NC312 7/8
TFLT89L05-8900134NC383 1/2
TFLT114L05-11400150NC384 1/2
As a professional oil well equipment manufacturers, SAIGAO GROUP specializing in design, research and development, processing and manufacturing, sales and export of machinery equipment, with leading products comprising various kind of mud pumps, down-hole motors, any kinds of screen pipes, cementing tools as well as any kinds of wellhead equipment.