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Depressurization nipple for controlling annulus pressure of wellbore,High-temperature-resistant tennis wall

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Supporting Wall is an award-winning London-based theatre and general arts production, promotion and management company, founded in 2008 by producers Ben Monks and Will Young. The company's own productions have primarily focused on new writing and contemporary theatre, while management and publicity work has included projects across theatre, comedy, film, live music and dance.

Depressurization nipple for controlling annulus pressure of wellbore

ActiveCN107575178AHigh energy conversion rateAchieving localized pressure reductionFlushingImpellerEngineering

The invention relates to a depressurization nipple for controlling the annulus pressure of a wellbore. The depressurization nipple is characterized by comprising a shell, wherein a barrel-shaped supporting wall is fixedly arranged inside the shell, a fixed shaft is fixedly arranged inside the shell, and the fixed shaft is disposed on the axis of the supporting wall; and the two ends of the fixed shaft are each rotationally connected with a power impeller, an outer tooth ring is arranged on the outer edge of each power impeller, the outer tooth rings are engaged with transmission gears rotationally connected to the supporting wall, a depressurization impeller is rotationally arranged outside the supporting wall, and an inner tooth ring is arranged on the inner edge of the depressurization impeller and engaged with the transmission gears.

Depressurization nipple for controlling annulus pressure of wellbore

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Owner:CHINA UNIV OF PETROLEUM (BEIJING)

High-temperature-resistant tennis wall

InactiveCN107754253AAvoid sun exposureImprove protectionSpace saving gamesRacket sportsTemperature controlEngineering

A high temperature resistant tennis wall, comprising a wall and supporting and fixing columns connected to both sides thereof, the roller curtain device on the top of the wall is connected to a driving motor, the driving motor is connected to a power supply through a temperature controller, and the support is fixed The front and rear sides of the column are respectively hinged with the bottom of the front and rear rotating support shafts. The No. 1 fixing bolt passes through the front fixing hole, the front side of the supporting and fixing column, the rear side of the supporting and fixing column, and the back of the rear fixing hole. It is threadedly connected with the No. 1 fixing nut, and a hollow cavity can be provided in the inside of the support fixing column to put the front slanting column and the rear slanting column on hold. This design not only has strong fixing strength, but also is easy to carry and install.

Owner:段海滨

2 results about "Supporting wall" patented technology

Depressurization nipple for controlling annulus pressure of wellbore

High-temperature-resistant tennis wall

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