Hot Tapping + Gate Milling

A Hot Tap (or Hot Tapping) is the ability to safely tie into a pressurized system, by drilling or cutting, while it is on stream and under pressure.

The Hot Tap is made in one continuous process. The machine is started, and the cut continues until the cutter passes through the pipe wall. This results in the removal of a section of pipe, known as the “coupon”.

The coupon is normally retained on one or more u-wires, which are attached to the pilot bit. Once the cutter has cut through the pipe, the hot tap machine is stopped. The cutter is then retracted into the hot tap adapter and the valve is closed.

Finally, pressure is bled off from the inside of the Tapping Adapter, so that the hot tap machine can be removed from the line. The machine is then removed from the pipe.

GATE MILLING

Like Hot Tapping, Gate Valve Mills are specially designed to drill or enlarge gate valves or ball valves that have become inoperable. This threatens the integrity of the well.

Gate Valve Mills are capable of drilling, milling, or cutting valves that are fully or partially closed. Therefore, full bore access is enabled to well intervention equipment like coiled tubing or wireline.

Currently Available Hot Tap and Gate Milling Equipment:

13” Compact Hot Tap Drill

  • All pertinent parts are H2S trim
  • 13” stroke
  • Automatically pressure equalized
  • Hand Feed for optimal control
  • 1.35 HP / 100-134 lb.-ft. torque Ingersoll Rand Air Motor 162 RPM
  • Speed on bit: 130 RPM
  • Torque: 135-170 lb.-ft. torque.
  • Standard bit size is ½” dia. (3/4” dia. Optional, for ½” NPT tapping). (4”, 6” and 12” bit lengths are standard)
  • Tool weight: 55 lbs.
  • Tool dimensions: 36” X 7” X 5”

3” Model “B” 15,000 PSI Gate Valve Milling UIU

  • Air Drive
  • All pertinent parts are H2S material
  • 4” tapping diameter capacity
  • 2 1/16”-15M Bottom adapter flange with packing box
  • 2”-1502 Top connector with packing box for equalization iron
  • 36” Travel with snubbing clamps
  • 42” Travel without snubbing clamps. (Polished rod adapter required)
  • 26” Short riser version available
  • 3 HP / 225-300 lb.-ft. torque Ingersoll Rand Air Motor 170 RPM
  • Speed on bit: 60 RPM high gear, 30 RPM low gear
  • Torque range approximate: 650 – 1600 lb.-ft. Standard length polished rod 1.250” OD X 120”
  • Material 17-4 PH. (different lengths and material available)
  • 60” length integral flow iron. (Weight 60 lbs.)
  • Tool weight: 500 lbs.
  • Dimensions: Tool only, Reg. 23” X 8 1/2” X 64”, Med. 48”, Extreme short 24”
  • Tool weight: 500 lbs.
  • Dimensions: Tool only, Reg. 23” X 8 1/2” X 64”, Med. 48”, Extreme short 24”