The hydraulic Liner Hanger is set by building up differential pressure in the running string. The pressure shears the hydraulic cylinder which pushes the outer slips into engagement with the casing string.

A guide ring at the end of the Liner Hanger ensures centralization of the Liner Hanger in the Casing as well as providing a safety feature against damage affecting the hydraulic cylinder and the slips-sleeve combination during run-in-hole. It provides multiple flow grooves to provide a high bypass flow area. Furthermore the guide ring allows an easy run in hole due to the seamless transition between the guide ring and the Liner Hanger body The hydraulic rotating Liner Hanger is able to rotate before and after setting (e.g. during run-in-hole, circulation, reaming, cementation).

Features/Benefits:

·         Liner Hanger set by applied hydraulic pressure

·         Capable to hold high liner weight for heavy liner systems

·         Available bearing allows rotation before and after setting the liner hanger

·         Optimal bypass flow area allows easy circulation

·         Minimal casing stress transmission due to special slip design

·         Single, double and multi cone is possible

·         Non-welded design

Mechanic Liner Hanger

The mechanical Liner Hanger is mechanically set by a quarter turn clockwise (if necessary counter clockwise is possible). A centralizer on the bottom end of the body gives the required friction force to set the Liner Hanger. Because there is no hydraulic component the equipment allows a high flow rate and flow pressure while run-in-hole. The mechanical rotating Liner Hanger is able to rotate before and after setting (e.g. during run-in-hole, circulation, reaming, cementation).

Features/Benefits:

·          Capable to hold high liner weight for heavy liner systems

·          Optimal bypass flow area allows easy circulation

·          Minimal casing stress transmission due to special slip design

·          Single, double and multi cone is possible

·          Depending on customer request, left- or right-hand setting possible

·          Non-welded design

In the following lines we provide you a short list of DEW standard product line for Liner Hanger systems; you can find detail information through following link:

http://www.dew-services.com/en/liner-hanger-systems.html

 

Bottom Set Tie Back Packer                                 Bypass Ball Seat

Cementing Head                                                      Claw Tool

Cup Tool                                                                       Drill Pipe Dart

Float Collar                                                                  Float/Reamer Shoe

Hold Down Sub                                                         Junk Bonnet

Landing Collar                                                            Lift Nipple

Liner Hanger                                                               Liner Top Packer

Orifice Float Collar                                                    Pack off Bushing

Pack off Nipple                                                          Packer Actuator

Pick up Sub                                                                 Plug Holder

Polish Mill and Scraper                                           Polished Bore Receptacle

Port Collar                                                                   Seal Sub

Setting Sleeve                                                           Setting Tool

Stinger                                                                          Tie Back Stem

 

Wash Tool                                                                   Wiper Plug