What is Wireline ?
Summary by koekoey
Weriline used in oilfield terminology means that a wire of some size, composition and length is being used to perform some type of services within the well bore. The basic use of wireline is manipulate wireline tools such as tubing gauging and flow control devices.
The function of wireline unit is an integral part of the workover and completions industry. Wireline operations provide an economical means of regulating and controling well fluid flow and clearing the tubing flow path of obstructions such as sand, scale, and paraffin.
Wireline is used for :
1. Depth measurements.
2. Temperature and pressure surveys (either static or flowing).
3. Modification or regulation of the flow rate.
4. Stopping or deviating the production.
5. Separating different layers of formation.
6. Opening and closing circulating ports.
7. Tubing calibration.
8. Removal of paraffin and cleaning of tubing in general.
9. Bottom hole sampling.
10. Tubing perforation.
Wireline fishing is a wireline job to removal of wireline tools that has been lost in the tubing while performing a wireline operation. It is usually using special tools that are Cuttter Bar, Side Wall Cutter, Kinley Snipper, Go Devil, Wireline Finder, and Impression Block.
Wireline may be reffered to by a number of names. Solid single strand line may be decribed are Slickline, Pione Wire, Solid line, Wireline, measuring Line. Multi strand wirelines are usaully described as braided line (3/16” most common).
As well depths have increased over the years since the first measuring lines were brought into use accompanied by increased working loads, it has become necessary to develop wireline having a high strength and weight ratio.
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