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Downhole Products (AMOS)
Downhole Products
Downhole Products EXPAND-O-LIZER™ ‘Extreme Service Tear Drop - Taper’ is the ultimate engineered solution for under-reamed casing applications, ensuring the best possible conditions for cement placement. A one-piece spring steel unit eliminates welded bows, the EXPAND-O-LIZER™ ESTD-T combines extremely robust manufacture with a proven drag reduction method of deployment.
Utilizing the already proven Downhole Products EXPAND-O-LIZER™ ES unique patented design and now incorporating an offset teardrop taper blade design (Patent Pending), the all new EXPAND-O-LIZER™ ESTD-T offers reduced insertion forces whilst affording a 65-100% increase in blade strength, therefore providing superior stand-off in the open hole section, ensuring ideal conditions for uniform cementation, thus preventing channelling.
Downhole Products EXPAND-O-LIZER™ SUB is an in-line centralizer sub for extreme tight clearance and under reamed applications where annular clearance is less than 1 1/4”. These subs are designed and manufactured specifically to the clients requirements on a job by job basis. DHP’s in-house design team will liaise with the client to ensure the best possible solution is available to minimise surge and drag while RIH and maximise stand-off when cementing.
Downhole Products EXPAND-O-LIZER™ ‘Under Reamed Service’ is a single piece, non-welded bow spring centralizer based on DHP’s field proven Inline centralizer sub cage. Designed for less demanding close tolerance under-reamed sections where the formation is deemed strong enough to handle the surge effect of running traditional or spray-on type stop collars through the previous casing string. Capable of compressing to pass extremely tight restrictions yet able to recover full start O.D. when in the under-reamed section. The URS is rapidly becoming the centralizer of choice in a budget driven market place.
The Standard EXPAND-O-LIZER™ 'Bow Spring' range are hinged non-welded bow-spring centralizers designed to centralize in less demanding well-bore applications where rotation is not a requirement. The hinge allows the centralizer to be fitted on larger bore casing where weld on connectors do not allow for a slip-on unit to be installed
Downhole Products EXPAND-O-LIZER™ ‘Standard Service’ is a one-piece semi- rigid bow type centralizer, manufactured from spring steel to allow for a degree of flex when passing gauge hole applications, where the operator is concerned that swelling/shifting shales are present that could impede a solid blade centralized string from getting to T.D.
Seal Saver blade coating was developed to eliminate well-head seal damage caused by oversized / under-reamed application bow spring centralizers compressing through the well head seal area and in turn scoring and damaging the sealing surface.
Seal Saver can be applied to any centralizer blade where there is a concern that vulnerable seals/surfaces in the well-head area could be damaged. Developed in conjunction with our Norwegian Distributer “Toolserv AS”.