TOOLS & SERVICE EQUIPMENT

 

Casing Head Body Retrievable Wear Bushing (PRWB)

These retrievable wear bushings (PRWB) protect the inner containers of casing head bodies or spools during drilling operations.When wear bushings are used, either hold down screws in the top flange of the casing head body or hold down flanges with hold down screws are required.

Retrieving Tool (PRT) 

This tool (PRT) is meant for retrieving the wear bushing described above. It is inserted in the slot provided in the wear bushing top surface, rotated and then pulled up with the tools.

BOP Test Plug (PTP) 

These plug Testers fit all nominal sizes of casing head bodies and tubing heads and are available with any standard tool joint.The test plugs are assembled in the drill string and lowered to its seat in the casing head body or tubing head. Pipe rams of the preventors are then closed and hydraulic test pressure is applied below the rams.Blind rams can be tested in the same manner after removing the drill string.

Back Pressure Valve (PBPV).

Tubing hanger bushing are furnished with female lift and suspension threads and are machined to accommodate the type (PBPV) back pressure valve as shown in the figure.With Blowout Preventor equipment attached to the tubing head body, the tubing is run to the desired depth and the bushing, with the type (PBPV) back pressure valve installed, is made-up on the landing joint.The wrap around hanger is then latched around the tubing below the hanger bushing and lowered thru the BOP to its position in the tubing head body by means of a landing joint.After making sure that the hanger have fully landed in the head, hold down screws are fully tightened to compress the packing and secure it in place. Thereafter the landing joint & BOP may be removed.Attach the landing joint and raise the tubing enough to install a spider and slips. With tubing weight on the slips, remove landing joint.

 

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