MPas™ Mechanical Open Hole Packer System

Application

The MPas™ Mechanical Open Hole Packer System is a primary cementing and zone isolation open hole packer using a non-inflatable packing element. It is run as an integral part of the casing or liner string to provide a barrier between the casing and wellbore.

Advantages

• Provides zone isolation by acting as a barrier between zones with or without cement
• Extensively tested in oval test fixtures to ensure reliability in irregular shaped wellbores
• Can be run in horizontal gravel packs and set in a single trip when used in conjunction with the BetaBreaker™ Valve
• Protects cement by blocking gas and fluid migration while cement sets up
• Allows stage cementing of deep wells by isolating lower zones from high hydrostatic pressures from long cement columns
• Locking dogs protect against premature setting until the setting sleeve is physically shifted
• A progressive setting sleeve in the element allows it to fully set and conform to the wellbore
• A body lock ring locks in the setting force while still allowing additional setting pressure to be applied later if desired
• Offers optimized production, delays water/gas coning, minimizes or eliminates annular flow, and encourages uniform inflow along the lateral

Additional Information

The MPas™ has an elastomeric element with composite structure that is hydraulically-set. Shifting a balance sleeve allows wellbore hydrostatic pressure to enter an atmospheric chamber, which applies setting force to the non-inflatable element. A lock mechanism holds this setting force in even if the hydrostatic pressure is removed. Additional setting force can be applied at any time by increasing the hydrostatic or applied pressure at the packer.

The MPas™ can be run on blank casing to isolate unwanted zones, in slotted casing to separate producing zones, or even between screens in a gravel pack for zone isolation and to minimize hot spots and migration of fines from zone to zone. When running the MPas™ in a horizontal gravel pack, a BetaBreaker™ (Product Family No. H30178) Valve is used to prevent sand from being deposited around the packer OD before it is set. When pulling out of the hole after pumping the gravel pack, a shifting tool on the end of the washpipe will set all MPas™ Packers in the casing string