The Strip-O-Matic is an air actuated pipe stripper that can be utilized on all drilling and/or tubing strings when being stripped in or out of the well bore. The assembly is fastened to the top of the flow nipple with a control console suitably located near the driller’s panel. Stripper pad tension can be easily adjusted through an air regulator control.
The Strip-O-Matic pipe wiper is a pneumatically controlled system that conserves drilling mud and other fluids in oilfield drilling. The system comprises two overlapping rubber or poly-urethane pads to wrap around the pipe. Pressure between the pads and the drill string is maintained at any pre-set level by air-actuated cylinders.
1. AUTOMATIC HOLE COVER:
When the pipe has been stripped out of the hole the stripper rubbers automatically overlap, completely sealing the well bore from tong dies, wrenches, bolts and other foreign objects.
2. REDUCED STRIPPING COST:
Where existing stripper rubbers must be discarded after 1/4” to 1/2” of wear the Strip-O-Matic features 3 inches of actual wear before replacement is required.
3. CENTRALIZED FLOATING STRIPPER:
The Strip-O-Matic utilizes floating stripper pads which through a concentric stripping action ensure a clean pipe at all times. On existing stripper rubbers, friction grips on the table bushings often allow sections of unwiped pipe.
Use of Strip-O-Matic eliminates the necessity for removing table bushings and installing stripper rubbers before each trip and the removal after the trip. These operations consume valuable rig time, particularly under freezing winter conditions. The Strip-O-Matic is a fully opening unit, so that casing slips can be dropped through the unit and down into the casing bowl.
All drilling fluid that is stripped from the pipe is saved. This creates an economic advantage when using expensive muds or where sump disposal presents a problem.
6. CLEANER B.O.P.’S AND SUBSTRUCTURE:
With all stripped mud returned to the well bore, the blowout preventers and substructure can be kept clean at all times. This is a particular advantage where oil base drilling muds are used and present a contamination problem around the rig
and in the sump.
7. STRIP IN OR OUT OF HOLE:
The Strip-O-Matic allows variable tension on the stripping pads thereby enabling stripping in as well as out of the hole. The drill string can be stripped in the hole thus providing protection to the diamond bit from foreign objects.
8. INCREASED PERSONNEL SAFETY:
The Strip-O-Matic eliminates the necessity of removing table bushings. This operation often results in injuries, particularly during the winter when steaming and removing frozen bushings.
9. EASE OF INSTALLATION:
The Strip-O-Matic BOP stack mounted model, replaces the flow nipple and can be installed in a matter of minutes with an air union. It also serves as a large catch basin (32” x 52”) under the rotary table.
10. REDUCED BLOWOUT HAZARDS:
The Strip-O-Matic can be easily opened for observation of fluid level during periods of lost circulation. When used with minor gas kicks, all fluids will be directed out the flow nipple resulting in a decreased danger from free gas rising around the rig floor. With the Strip-O-Matic in position an added margin of time will be allowed to close the blowout preventers.
11. KELLY KICK OUT VALUE:
All units are equipped with a 10,000 lb stainless steel safety kick out valve and hooked up to the stand pipe mud pressure. The Strip-O-Matic will automatically open when 400 lb of pump pressure is applied to the drill pipe. This eliminates rotating Kelly in wiping pads.
All strippers are furnished with a spare parts box containing an extra set of wiping shoes complete with cylinders, harness and wiping pads. When out of the hole, used wiping shoes can be changed in a matter of minutes when a roll-a-way Strip-O-Matic is in place.