Slickline refers to a single strand wire which is used to run a variety of tools down into the wellbore for several purposes. It is used during well drilling operations in the oil and gas industry. In general, it can also describe a niche of the industry that involves using a slickline truck or doing a slickline job. Slickline looks like a long, smooth, unbraided wire, often shiny, silver/chrome in appearance. It comes in varying lengths, according to the depth of wells in the area it is used (it can be ordered to specification) up to 35,000 feet in length. It is used to lower and raise downhole tools used in oil and gas well maintenance to the appropriate depth of the drilled well.
In use and appearance it is connected by a drum as it is spooled off the back of the slickline truck to the wireline sheave, a round wheel grooved and sized to accept a specified line and positioned to redirect the line to another sheave that will allow the slickline to enter the wellbore. Slickline is used to lower downhole tools into an oil or gas well to perform a specified maintenance job downhole. Downhole refers to the area in the pipe below surface, the pipe being either the casing cemented in the hole by the drilling rig (which keeps the drilled hole from caving in and pressure from the various oil or gas zones downhole from feeding into one another) or the tubing, a smaller diameter pipe hung inside the casing.
Vigor has many years of experience in laboratory development and field use of oil and gas downhole equipment, so Vigor's team of engineers also has our own understanding of Slick Line Unit Composition, and the following is a list of the most commonly used tools in the field for your reference.
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Appendix 1 – Slick Line Unit Composition (Surface Equipment) |
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Item |
Description |
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A |
Standard Slick line Unit specification |
Slick line single drum unit with integrated crane shall operate with 7000 meters of 0.125" stainless steel wire and with minimum speed of 2 m/min. Crane shall be capable to lift/suspend 8 joints of 5 ½" lubricators' weight and extension at 30ft radius with minimum height of 85 ft., under-hook height available. 16" X 0.125" Sheave wheel assembly with double retention. 3,000 lbs safe working. 2 Integrated explosion-proof CCTV system (Inside cabin & outside) streamlining to base and office. Unit shall not exceed the length and width that mandates ROP escort of the unit as specified in SP2000 Welfare facilities as described under Article 1.7.1.5 hereabove. Smart monitor system (1 Sec. readings) depth, time, weight, speed. Interlock system to manage depth and weight. Cabin with AC, lighting and safety front glass. Mechanical & Electronic depth counter System Martin Decker & Electronic weight Indicators. |
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B |
Heavy duty (HD) Slick line Unit specification |
Heavy duty double drum units with integrated crane shall operate with 7000 meters of 0.125" stainless steel wire and with 7000 meters of 0.160" stainless steel wire and with minimum speed of 2 m/min. Crane shall be capable to lift/suspend 8 joints of 5 ½" lubricators' weight and extension at 30ft radius with minimum height of 85 ft., under-hook height available. Refer to PR-1034. The HD unit shall be capable to continuously pull a minimum of 4,000 lb with full drum of 0.16" wire. Refer to PR-1034 Sheave wheel assembly for 16"X 0.16" wire with double retention. 2 Integrated explosion-proof CCTV system (Inside cabin & Outside ) streamlining to base and office. Unit shall not exceed the length and width that mandates ROP escort of the unit as specified in SP2000 Welfare facilities as described under Article 1.7.1.5 hereabove. Smart monitor system (1 Sec. readings) depth, time, weight, speed. Interlock system to manage depth and weight. Cabin with AC, lighting and safety front glass. Mechanical & Electronic depth counter System Martin Decker & Electronic weight Indicators. |
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C |
Slick line Other Equipment (Applies to Standard and Heavy Duty Units) |
Each Unit shall be equipped with: One set of Quick Test Sub of both sizes (3 ½" & 4 ½"). One set of Liquid Seal Sub of both sizes (3 ½" & 4 ½"). One set of shear RAM of both sizes (3 ½" & 4 ½"). One set of 10K double RAM BOP of both sizes (3 ½" & 4 ½"). Three (3) sets of 8 feet joint Lubricators of both sizes (3½", 4½"). One tool catcher for each for both sizes ( 3 ½" & 4 ½").Pressure Control Equipment (PCE). Two sets of 16" Sheave wheels assembly with double retention. Mounted control module in the cabin to operate BOP rams with Hydraulic accumulators to be fitted for closing BOP as per SP-1213 and API RP 16ST. Two sets of 8'X4' portable Fiber glass cellar grating and access ladders with protection frame. All above requirement shell be in reference to PR-1034 & SP-1213. |
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D |
Christmas tree access Equipment |
Oilfield specifications scaffolding and height higher than 1.2 meters. Two sets of 8'X4' portable Fiber glass cellar grating and access ladders with protection frame. Lighting for 24 hr operation - suitable for hazardous areas. |
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E |
Integrity testing lubricators pump |
High pressure low volume/low-pressure high-volume pump Unit for integrity testing of Wellheads and pressure test lubricators wells: 130 Ltr per min/100 PSI 2.2 Ltr per min/10,000 PSI 2000 Litre water tank Recorder (Data or Chart) 10K Piping/Hose between Unit and Wellhead Bleed-off pipe/Hose, Choke and Valve |
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F |
Grease pump |
High pressure hydraulic grease pump for wellhead valves. |
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G |
Cross over |
Cross over from well head to Contractors' Equipment as per company well set up. New 10K & 15K wells are with flanged connection while old 10K & 15K wells are with tree cap. All new beam pump wells Christmas trees are with flanged connection while the old one are with tree cap. Refer to Company's completion manual. |
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Appendix 2 – Slick Line Unit Composition (Down-hole Tools) |
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Item |
Tool |
Size |
Remarks |
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1 |
Rope Socket |
1 ¼"-1 7/8" |
QLS and SR connection |
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2 |
Swivel Sub |
1 ¼"-1 7/8" |
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3 |
accelerator |
1 7/8" -2 1/8" |
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4 |
Stem |
1 ¼"- 2 1/8" |
including Tungsten carbide |
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5 |
Knuckle joint |
1 ½" – 1 7/8" |
QLS and SR connection |
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6 |
Linear tube jar |
1 ¼" -2 1/8" |
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7 |
Heavy tubular jar |
1 ¼"- 2 1/8" |
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8 |
Spring jar |
1 ¼" -2 11/16" |
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9 |
Hydro mechanical jar |
1 ½" -1 ¾" |
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10 |
Spang jar |
1 ½"- 1 7/8" |
LS, SS (QLS) |
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11 |
Cross over |
All type |
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12 |
Plugs & prong Pulling & setting tool |
2 3/8"- 5 7/8" |
DD, XN, X, XNBH , R-line, RB, RQ, SB ,RN, RNBH, RPT & WRSSV |
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13 |
Pulling tool |
GS series & GR series |
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14 |
Plugs/Prong Running Tool Otis or corresponding CAMCO Running tool |
1.875"- 5.813" |
(For All Plug types DD, X, XN, XNBH, RNBH, R, RN, RQ, RPT) |
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15 |
Check set tool |
2 3/8" – 5 ½" |
For lock mandrels |
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16 |
Gauge cutter |
For all completion sizes |
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17 |
Lead impression block |
1"- 5" |
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18 |
Blind Box |
1"-5" |
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19 |
Bailers |
1 11/16" -3" |
Hydrostatic, pump |
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20 |
Centralizers |
2"-4" |
fluted |
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21 |
Wire finder/ Grab/ Scratcher/ Brush |
2" -5.5" |
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22 |
Go Devil |
1 7/8" |
flat bottom, Goat foot |
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23 |
Cutter bars |
1 7/8" -2 ½" |
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24 |
Shifting Tools |
2 3/8" – 5 ½" |
For Normal and heavy wall Selective and non-selective |
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25 |
Magnets |
All sizes |
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26 |
Overshot |
All sizes |
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27 |
Kick over Tool |
All spec |
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28 |
Gas lift Valve (GLV) Running/Pulling tools |
1" & 1 ½" |
For valves size |
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29 |
(BPV & TWCV) pulling/running tool |
For all Company completion sizes |
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30 |
Bell guide |
2 3/8" – 5 ½" |
For nominal size tubing |
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31 |
F Collar stop |
2 3/8" – 5 ½" |
nominal size tubing |
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32 |
spear |
2 3/8"- 7" |
For nominal tubing/Liner sizes |
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33 |
Shock absorbers |
All sizes |
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34 |
Tubing puncher |
For 3 ½" and 4 ½" GRE TBG |
3 ½" GRE TBG Wall Thickness= 0.4175" 4 ½" GRE TBG Wall Thickness = 0.455" |
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35 |
Sand/Sample Bailers |
All size |
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36 |
Equalizing/Running/Pulling prongs |
For plugs and Safety Valves |
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37 |
Dummy Bars for SPM |
1" and 1 ½" |
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38 |
Wire brush/ Scratcher for SPM |
1" and 1 ½" |
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39 |
Valve Catcher |
2 3/8" – 5 ½" |
nominal size tubing |
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40 |
Junk Catcher |
2 3/8" – 5 ½" |
nominal size tubing |
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41 |
Quick test sub |
2 3/8" – 5 ½" |
nominal size tubing |
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42 |
Roller Bogie |
2.77" to 4.900" |
nominal size tubing |
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43 |
Roller Bogie stem |
3.000" & 3.600" |
nominal size tubing |
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44 |
Advanced Kickover tool |
3.5" - 5.5" |
nominal size tubing |
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45 |
Block buster spring Jar |
3.60" – 3.600" |
nominal size tubing |
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46 |
High Deviation Jar |
2.275" 2.600",3.600" |
nominal size tubing |
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47 |
Low & High Loader Jar |
1.700" - 5.940" |
nominal size tubing |
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48 |
Lubricator of VR plug |
All sizes |
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49 |
Anti Blow-up Tool |
2 3/8" – 5 ½" |
nominal size tubing |
If you are interested in Slick Line Unit Composition or downhole drilling, completion, logging, logging tools, please do not hesitate to get in touch with us to get the most professional products and the best quality service.
For more information, you can write to our mailbox
info@vigorpetroleum.com (Erica)
mail@vigorpetroleum.com (Joppa)
