- Title : Slickline Operations & Procedures
- Publish : AMERICAN PETROLEUM INSTITUTE Exploration & Production Department
- Type Document : pdf
- Release : December 1994
- Total Page : 67 Page
- Size : 3.75 Mb
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Decrypted Contents
CHAPTER 1 SURFACE EQUIPMENT
Wirelines have been in use since the early days of the oil and gas industry. The development of surface equipment for solid wireline operations has kept pace with the development of new methods and tools used in well completion, remedial and work-over operations. Solid wireline is used for depth determination, deviated hole surveys, temperature and pressure surveys, paraffin cutting, and cementing operations. Solid, wireline may also be used to set, retrieve, and manipulate chokes, circulating plugs, gage cutters, swaging tools, safety valves and gas-lift valves.
As the oil industry grew from the first shallow well in Titusville, Pennsylvania in 1859 to the first producing well on the Outer Continental Shelf in the Gulf of Mexico in 1947, wireline servicing also grew in complexity.Since then, wireline operations have kept pace with industry needs for work in deeper and more corrosive wells, deviated holes, and wells drilled in deeper water offshore.
The expansion of oilfield activities from conventional terrain to marsh, muskeg, desert and offshore locations has required mobility in wireline equipment for proper servicing. In the early days of solid wireline operations few problems occurred with mobile equipment. Trucks with wirelinewinches, skid-mounted equipment, and fixed units mounted at strategic locations handled most solid wireline work. The truck is now the primary transport vehicle for wireline land operations.
Wireline equipment was later moved to inland water and marsh locations by mounting the equipment on speed boats, tugs, or small barges. Today a diesel powered shallow water spud boat, with a built-in hydraulic system that controls the wireline spool as well as the boat spuds, is usually used in
bayous, streams, marshes or lakes.
As the oil industry grew from the first shallow well in Titusville, Pennsylvania in 1859 to the first producing well on the Outer Continental Shelf in the Gulf of Mexico in 1947, wireline servicing also grew in complexity.Since then, wireline operations have kept pace with industry needs for work in deeper and more corrosive wells, deviated holes, and wells drilled in deeper water offshore.
The expansion of oilfield activities from conventional terrain to marsh, muskeg, desert and offshore locations has required mobility in wireline equipment for proper servicing. In the early days of solid wireline operations few problems occurred with mobile equipment. Trucks with wirelinewinches, skid-mounted equipment, and fixed units mounted at strategic locations handled most solid wireline work. The truck is now the primary transport vehicle for wireline land operations.
Wireline equipment was later moved to inland water and marsh locations by mounting the equipment on speed boats, tugs, or small barges. Today a diesel powered shallow water spud boat, with a built-in hydraulic system that controls the wireline spool as well as the boat spuds, is usually used in
bayous, streams, marshes or lakes.
As oilfield development moved offshore, equipment and methods oftransportation changed. Self-propelledjackup vessels are ordinarily used on shallow water locations. The jackup vessel is built on the same principle as a spud barge, except that the spuds are replaced with long legs to jack the boat out of the water. This enables the crew to work in rough seas and water depths of up to a hundred feet or more.
In remote offshore areas a specially designed skid-mounted diesel-powered wireline unit with built-in hydraulic pumps and motors is used. The unit is transported to the offshore platform or rig on a supply boat and lifted onto the platform by a crane.
Drilling and completion of oil and gas wells in desert terrain is accomplished by mounting the equipment on largewheeled vehicles (trucks or cars) capable of driving in soft sand. Wireline equipment is moved to desert locations the same way.
Weatherconditions in arctic areas call for specially designed cold weather units; however, these are also easily transportable by truck to remote locations.
Drilling and completion of oil and gas wells in desert terrain is accomplished by mounting the equipment on largewheeled vehicles (trucks or cars) capable of driving in soft sand. Wireline equipment is moved to desert locations the same way.
Weatherconditions in arctic areas call for specially designed cold weather units; however, these are also easily transportable by truck to remote locations.
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