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Inflatable Packer System

inflate pumpThe Inflate Pump is a down hole piston pump which delivers drilling fluid from the well bore to the inflate packers. The Inflate Pump is activated by rotating the drilling string at approximately 60 R.P.M.

Suction ScreenThe Suction Screen filters the larger particles from the drilling mud before it can enter the Inflate Pump. Located directly below the Inflate Pump, drilling mud is drawn in through the screen up to the Inflate Pump and back down through a flow passage to the Packer Elements.

inflate release system

The Inflate Release System enables multiple inflate tests without having to come out of the hole after each test. The Release System consists of a hydraulic piston/cylinder arrangement that acts as a valve to facilitate mud flow movement in two directions:

· Inflation = Inflate Pump to packers
· Deflation = Packers to well annulus

upper packer assembly

The Upper Packer Assembly is designed to serve four functions.

1. Mounting of the rubber packer element.
2. Delivery or removal of drilling mud to the packer elements during the test inflation and
deflation process.
3. Inflation of packer elements to seal the top of the test interval.
4. Equalization of hydrostatic pressure above and below the test interval.

Drag Spring

The Drag Spring is designed to resists turning in the hole when the drill string is rotated. This resistance transmits torque to power the Inflate Pump.

The Inflate Pump is a down hole piston pump which delivers drilling fluid from the well bore to the inflate packers. The Inflate Pump is activated by rotating the drilling string at approximately 60 R.P.M.

Suction Screen

The Suction Screen filters the larger particles from the drilling mud before it can enter the Inflate Pump. Located directly below the Inflate Pump, drilling mud is drawn in through the screen up to the Inflate Pump and back down through a flow passage to the Packer Elements.

Lower Packer

The Lower Packer Assembly is designed to serve four functions.

1. Mounting of the rubber packer element.
2. Delivery or removal of drilling mud to the packer elements during the test inflation
and deflation process.
3. Inflation of packer elements to seal the top of the test interval.
4. Equalization of hydrostatic pressure above and below the test interval.

Drag Spring

The Drag Spring is designed to resist turning in the hole when the drill string is rotated. This resistance transmits torque to power the Inflate Pump.

inflate release system

The Inflate Release System enables multiple inflate tests without having to come out of the hole after each test. The Release System consists of a hydraulic piston/cylinder arrangement that acts as a valve to facilitate mud flow movement in two directions:

· Inflation = Inflate Pump to packers
· Deflation = Packers to well annulus

The Inflatable Packer System isolates an open hole interval. It can be configured with one (Bottom Hole) or two packers (Straddle). The Inflate Straddle configuration is capable of multiple resets allowing independent testing or treatment of multiple intervals with one trip in the hole. Right hand rotation of the drill pipe or tubing at 20 – 60 rpm for 30 to 45minutes drives the Inflate Pump, which draws filtered annular fluid (drilling or completion fluid) through the Suction Screen and inflates the packers. Upward pull opens the Inflate Release deflating the Upper and Lower Packers. The process can be repeated for multiple intervals. Northstar’s Inflatable Packer System is equipped with an integrated Bypass passage equalizes pressure above and below the interval to maintain well control (overbalance) and prevent skidding during testing and prevent swabbing while tripping in/out of hole.

Benefits

Applications

Specifications

inflate pumpThe Inflate Pump is a down hole piston pump which delivers drilling fluid from the well bore to the inflate packers. The Inflate Pump is activated by rotating the drilling string at approximately 60 R.P.M.

Suction ScreenThe Suction Screen filters the larger particles from the drilling mud before it can enter the Inflate Pump. Located directly below the Inflate Pump, drilling mud is drawn in through the screen up to the Inflate Pump and back down through a flow passage to the Packer Elements.

inflate release system

The Inflate Release System enables multiple inflate tests without having to come out of the hole after each test. The Release System consists of a hydraulic piston/cylinder arrangement that acts as a valve to facilitate mud flow movement in two directions:

· Inflation = Inflate Pump to packers
· Deflation = Packers to well annulus

upper packer assembly

The Upper Packer Assembly is designed to serve four functions.

1. Mounting of the rubber packer element.
2. Delivery or removal of drilling mud to the packer elements during the test inflation and
deflation process.
3. Inflation of packer elements to seal the top of the test interval.
4. Equalization of hydrostatic pressure above and below the test interval.

Drag Spring

The Drag Spring is designed to resists turning in the hole when the drill string is rotated. This resistance transmits torque to power the Inflate Pump.

The Inflate Pump is a down hole piston pump which delivers drilling fluid from the well bore to the inflate packers. The Inflate Pump is activated by rotating the drilling string at approximately 60 R.P.M.

Suction Screen

The Suction Screen filters the larger particles from the drilling mud before it can enter the Inflate Pump. Located directly below the Inflate Pump, drilling mud is drawn in through the screen up to the Inflate Pump and back down through a flow passage to the Packer Elements.

Lower Packer

The Lower Packer Assembly is designed to serve four functions.

1. Mounting of the rubber packer element.
2. Delivery or removal of drilling mud to the packer elements during the test inflation
and deflation process.
3. Inflation of packer elements to seal the top of the test interval.
4. Equalization of hydrostatic pressure above and below the test interval.

Drag Spring

The Drag Spring is designed to resist turning in the hole when the drill string is rotated. This resistance transmits torque to power the Inflate Pump.

inflate release system

The Inflate Release System enables multiple inflate tests without having to come out of the hole after each test. The Release System consists of a hydraulic piston/cylinder arrangement that acts as a valve to facilitate mud flow movement in two directions:

· Inflation = Inflate Pump to packers
· Deflation = Packers to well annulus

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