The Eco-X is a cost effective full bore open hole packer deployed as part of multi-stage stimulation.
Positioned between two stages, the Eco-X creates isolation during stimulation. The number of intervals being stimulated in a well is equal to the number of open hole packers required.
The packer is set when the on board piston is subject to a differential exceeding its pre-set activation pressure. The element creates a reliable seal inside the open hole, creating effective isolation between intervals. The design features an anti-preset function allowing the liner to be conveyed safely and also features anti-extrusion barriers on the element.
The Eco-X packer is elegantly simple, yet robust, rugged and effective. The entire tool can be picked up and threaded on location with no requirement of pup joints or lifting subs. The torque rating of the tool allows for torque through rig operations when making up connections. Employing a simple, differentially activated piston, the element sets and maintains the set force with a fine tooth ratchet mechanism. The piston is long enough to ensure no risk of over-setting the element which traditionally has lead to leaky liner from piston over-extension. A metal split ring maintains the position of the bottom gauge ring ensuring any forces on the gauge ring running in hole are easily accommodated.
Engineered with two anti-swabbing mechanisms, the Eco-X features Equalization Ports and Vulcanized Bonding. Equalization ports ensure there can never be differential from the OD to the ID of the element, which until now has been the main cause of element swabbing in longer elements. Vulcanized bonding bonds the rubber to the metallic gauge ring on each side providing the element with exceptional durability. The adhesion of the bonding exceeds the mechanical properties of the rubber itself, eliminating the risk of tearing the element from the gauge ring and subsequently swabbing the element off the packer.
FEATURES AND BENEFITS
- Anti-Swab Design
- Anti-Extrusion barriers on element ensure efficient pack-off
- Unlimited number of packers can be set simultaneously
- Multistage Stimulation
- Isolation for acid stimulation