Inflatable Packer System
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.
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.
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 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.
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.
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.
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.
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.
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
Benefits
- Resets - Multiple tests with one trip
- Lower Isolation – Isolate and independently prove reservoirs
- Can test far off bottom after the well total depth is achieved (TD)
- Seals in large wellbore washouts
- Continuous rotation prevents differential sticking - Best for deviated open hole
- Trip Dry – Run in hole with dry pipe or air gap to maximize underbalance for inflow testing Blank-off Sub Bypass
Applications
- Open Hole Drill Stem Testing (DST)
- Inflow / Casing Integrity Testing
- Pre-Fracturing / Mini-frac / Data Frac
- Stimulation / Injection / Injection Testing Caprock / Mechanical Integrity Testing
Specifications
- Packer pressure differential: 5,000 PSI
- Absolute pressure: 8,000 PSI
- Temperature: 140° C / 284° F
- Hole sizes: 6.125” to 12.25”
- Wash-out: 30%
- Deviation: up to 90°
- Straddle Interval size: 1.58 to 40 meters
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.
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.
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 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.
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.
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.
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.
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.
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
Find information on any of our DST services.
Solutions recently used in geothermal