7" and 9-5/8" non-rotating brushes and scrapers, junk catchers, string magnets, vacuum tools, and circulation tools — sourced, prepared, and run as a clean-up string.
A typical clean-up BHA spaces a scraper and brush below a junk catcher, with a string magnet and a circulation tool where hole conditions need more flow or ferrous recovery. The vacuum tool is added when debris sits on a plug, a formation-isolation valve, or a damaged interval and will not come out with circulation alone.
Removes residual cement on the casing wall, mud and tie-in burrs, perforation debris, rust, scale, and hard paraffin. The tool is a mandrel, cutter blocks, spring plates, and screws. Non-rotating mode protects casing when the string is rotated. Relocate a shear ring to dress the tool in rotating mode. Blades hold 360° contact with the casing ID.
Runs with the scraper. The upper and lower brushes clean the scraped casing wall. In shallow hole the lower brush does most of the work; as it wears in deeper hole the upper brush body extends. 360° coverage, self-centering, non-rotating stabilizers to protect casing. Flexible brushes that help a later chemical soak.
Wellbore filter in the clean-up BHA, spaced above the scraper and brush. Running in, it wipes the casing and fluid bypasses the tool. Pulling out, flow is diverted through the filter screen so debris is captured. A non-rotating molded wiper can be fitted. The screen is guarded against accidental damage.
| Casing | 9-5/8" 53.5 ppf (min. annular flow area 4.48 in²) |
|---|---|
| Connections | 4-1/2" IF box × pin |
| Overall length | 158.52" |
| Body OD / wiper OD | 8.19" / 8.79" (wiper removable) |
| Min. ID | 2.79" |
| Also available | 7" NC38 · ~5.5" body OD · ~12.4 ft recovery section |
Magnetic fishing tool for iron scrap generated in drilling, casing repair, and clean-up. Debris sticks to the magnets on the outer pipe and stays in the recovery windows until the tool is pulled. The magnet section stays stationary while the drill string rotates, which reduces casing wear and the chance of dropping metal back into the well. High-temperature magnet available.
| Casing ID | 8.35"–9.12" |
|---|---|
| Connections | 4-1/2" IF box × pin |
| Max. OD / length | 7.75" / 100" |
| Magnets | 120 ea · ≥ 4,000 gauss each |
| Min. ID / working pressure | 2.00" / 5,000 psi at 300°F |
| Temperature | 0–302°F |
| Also available | 7" NC38 · 77.9" long · 72 circular magnets |
Both tools use the same reverse-circulation idea. Pumping through the nozzle body creates a low-pressure zone at the washover shoe. Fluid travels down the annulus, turns, and comes back up through the shoe, carrying debris with it. Flapper valves hold the solids in the chamber. A screen at the top of the chamber keeps debris out of the string. The chamber can be built from up to 20 joints of pipe.
Use either tool after formation damage, after perforating, or to clean the top of plugs and formation-isolation valves. They work in vertical or horizontal hole and still collect debris when circulation is partly or fully lost, because the solids never have to travel back to surface in the returns.
Fluid leaves the main nozzle body, travels down the annulus, and is drawn back through the washover shoe. Debris lifts through the flappers into the chamber. The same layout is used on the 9-5/8" tool and on the compact 3-5/8" tool; only the body size, connections, and chamber pipe change.
Large-bore tool for 9-5/8" casing. 65 ft debris chamber and filter screen as a standard makeup.
| Casing | 9-5/8" 43.50–53.50 ppf |
|---|---|
| Connections | 4-1/2" IF box × pin |
| Max. OD / min. ID | 7.64" / 2.80" |
| Overall length | 73.85 ft |
| Debris chamber | 65 ft, 1 mm screen openings |
| Working / test pressure | 5,000 psi |
| External yield | 10,000 psi |
| Working temperature | 120°C |
| Body material | 4145H, P110 |
Compact vacuum tool. Same reverse-circulation job as the 9-5/8" unit, in smaller hole. Flow-activated only. Runs vertically or horizontally. 4.5–5 bbl/min is the usual pump rate; 3 bbl is enough to start the effect. Works when circulation is partly or fully lost.
| Hole size | 4-1/2"–7" |
|---|---|
| Max. tool OD | 3-5/8" |
| Length / weight | 22.5" / 50 lb (40" / 90 lb with adapters) |
| Top connection | 2-3/8" API Regular |
| Lower connection | 2-3/8" pin (or crossover) |
| Crossover | 2-3/8" API Reg box × 2-7/8" EUE pin, 1" line-pipe screen thread |
| Collection chamber | Up to 20 joints, multiple pipe sizes |
| Optimal flow | 4.5–5 bbl/min |
| Make-up / tensile | 1,800 ft-lb / 180,000 lb |
Raises circulating rate for hole cleaning, and is also used for plugging and workover circulation. Ball-catcher design lets cable or balls pass. Clear open/close status. Rated for high temperature and pressure, extra-deep wells, most mud systems, and H2S service.
Bullnose tool for wellbore, riser, BOP, and wellhead clean-up. Removable nozzles can be swapped when worn, blanked off, or changed in throat size to set jetting flow for the job. Full radial and angular coverage.
Send casing size, connection, and the debris you expect. We will propose scraper, brush, catcher, magnet, vacuum, and circulation positions on one string.