Artificial Lift Optimization & Well Cleanout Technology

Typical Cleanout Operation

CJS Non-Invasive ArmorVak Operation

(Several hundred successful jobs)

ArmorVak – A Well Cleanout Alternative

Motor Fluid:Injection Motor & Production Fluid:

Return

ArmorVak Well Cleanout SystemCJS Custom

Jet Pump

CJS ArmorPakCoiled Tubing

Well Cleanout Procedure

!  This system combines CJS’s dual umbilical coiled tubing, ArmorPak, with an engineered Jet Pump using the venturi principal to vacuum solids and liquids from well bores. The primary function is to create a low pressure environment in the well bore to pump the fluid and solids to surface up the production conduit in the ArmorPak. This thru tubing cleanout operation is accomplished in an underbalanced environment at all times and and simultaneous jetting and vakking facilitates the ability to break solids bridges in the well, combining the fluid and solids returns to surface.

FiltrationMotor Fluid

Holding Tank

Fluid ReturnsTank

Dual ArmorPak Tubing

Coiled Tubing Unit

Hot Oiler

Filtration

Produced Fluids/Solids

BOPSystem

InjectionFluid

Engineered Jet Pump

Engineered Dual Action Jet PumpJetting and vakking facilitates the ability to break solids bridges in the well returning the motor fluid,

production fluid and solids returns to surface.

Well Cleanout Process & Application!  The ArmorVak system uses the “clean as you go” approach with a motor fluid “thief valve” that

directs a desired volume of fluid to the wash nozzle for cleaning action

!  If desired, the return valve can be shut in such that all motor fluid is directed to the 1/16” wash nozzle with 30 lpm @ 5,000 psi hydraulic pressure directed at any solids blockage

!  Efficient cleanouts can be performed to an upper maximum of 3,000 meters of measured depth.

!  Historical experience has been collected in several reservoir types from light oil to CHOPS to thermal heavy oil recovery.

Frequently Asked Questions About Canadian ArmorVak!  Proven Technology with Top Tier Heavy Oil companies

!  Proven ability to handle heavy solids and gas recoveries

!  139.7mm (5.5 inch) inch and greater casing & liner sizes accommodated