Xian Kingwell Oilfield Machinery Co.,Ltd

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Hydro Trip Pressure Sub

Product Number: Hydro Trip Pressure Sub

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Model “KW” Hydro Trip Pressure Sub Sizes 2 3/8” / 2 7/8” / 3 1/2”

The Model “KW” Hydro Trip Pressure Sub is a pressure actuated device installed in tubing string

below a hydrostatically actuated tool such as a packer. It provides a method of applying pressure

to activate and set the packer and then through continued pressure, activate the Hydro Trip Sub.

Packer is set by circulating a ball through packer down to ball seat in the Hydro Trip Sub. After

packer is set, a continued increase in pressure is applied to shear the shear screws in the shear

ring, allowing the ball seat collet to move down into the collet relief area and allowing the ball to

pass down the Hydro Trip Sub through the tubing, leaving a “full open” Sub with no restrictions to

production.

REDRESS PROCEDURE

After a Hydro Trip Sub has been pulled from well, it is manufactured such that it

can be redressed and utilized again.

A.Place Bottom Sub (item 9) of Hydro Trip in vice and secure.

B.Remove set screws (item 4).

C.Remove Top Sub (item 1) from Bottom Sub.

D.After removing the Top Sub, the Ball Seat Collet (item 3) will be sticking out of the bottom end of Top Sub. Remove Ball Seat Collet out of bottom end of Top Sub and discard. Remove O-ring from Top Sub and discard.

E.Remove Spacer (item 6) and Shear Ring (item 8) out of Bottom Sub.

F.Remove sheared screws from Spacer, clean and grease all parts, including Top and Bottom Sub.

G.Replace sheared screws with proper amount of new screws into the Shear Ring and Spacer. Drop made up Shear Ring / Spacer into the Bottom Sub. Make sure item falls into place in Bottom Sub.

H.Replace O-ring on Top Sub and make up Top Sub into Bottom Sub. Replace Set Screws.

I.Take NEW Ball Seat Collet and with proper “driving tool” drive Ball Seat down through top of Top Sub down to where Ball Seat bottoms out on Shear Ring. Hydro Trip Pressure Sub is ready to run.

The Model "KW” Hydro Trip Pressure Sub is a pressure actuated

device installed in tubing string below a hydrostatically actuated tool such

as a packer. It provides a method of applying pressure to activate and

set the packer and then through continued pressure, activate the Hydro

Trip Sub.

The Packer is set by circulating a ball through the packer down to ball

seat in Hydro Trip Sub. After packer is set, a continued increase in

pressure is applied to shear the shear screws in the shear ring, allowing

the ball seat collet to move down into the collet relief area and allowing

the ball to pass down the Hydro Trip Sub through the tubing, leaving a

“full open” Sub with no restrictions to production.

For more information on the Hydro Trip Pressure Sub,