PL-CS
Casing Scraper (mechanical)
Casing Scraper (mechanical) is designed to clean the inner walls of casing strings from clay crust, cement stone, paraffin, salt crystals and their compounds, solid iron oxides that can cause casing corrosion. Cleaning or preparation of certain intervals of casing strings is an important process for the operation of all tools used in drilling or workover operations. Cleaning of the inner surface is performed along the entire length of the casing string or its defined intervals by axial movement of the tool (downward stroke) with continuous or periodic circulation of flushing fluid to carry cleaning products to the surface.
- Casing string
- 4 1/2" (114,3) – 9 5/8" (244,5)
- Sizes
- 6
- Equipment line
- Downhole equipment
Design advantages
- Provides coverage of the entire inner diameter of the casing string.
- Provides free washing out of the removed sludge.
- The possibility of passing the scraper in places with a reduced inner diameter of the casing and in the intervals of well curvature.
Sizes and specifications
6 sizes, 8 parameters
| Size | Outer diameter max.mm | Inner diametermm | Lengthmm | Max. O.D. of bladesmm | Min O.D. of blades (constructed position)mm | Thread connection | Blades numberpcs | Spring numberpcs |
|---|---|---|---|---|---|---|---|---|
| 4 1/2" (114,3) | 86 | 18 | 660 | 106 | 86 | 2 3/8 Reg | 6 | 30 |
| 5" (127) | 98 | 25 | 660 | 116 | 98 | 2 3/8 Reg | 6 | 30 |
| 5 1/2" (140-146) | 108 | 32 | 750 | 130 | 108 | 2 7/8 Reg | 6 | 30 |
| 6 5/8" (168,3) | 136 | 32 | 990 | 166 | 136 | 3 1/2 Reg | 6 | 36 |
| 7" (177,8)needs checking against print | 143 | 32 | 990 | 167 | 145 | 3 1/2 Reg | 6 | 36 |
| 9 5/8" (244,5) | 200 | 67 | 1 010 | 230 | 200 | NC-46 (4 IF)* | 8 | 48 |
Non-standard sizes are made to order — send the well parameters.
Documents
Datasheetin preparationCertificate of conformityin preparationOperating manualin preparationRelated equipment
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