A flush-by unit is a compact, continuous-rod and conventional sucker-rod service solution that merges the features of a pressure truck and small rod rig to diagnose and troubleshoot wells. Designed for rapid deployment and safe operation, the Flushby unit consists of a fluid tank, triplex pump, freestanding mast assembly, and full set of tools and safety equipment. With a standard or heavy-duty injector, the unit trips and services continuous-rod strings efficiently without the use of additional equipment. The unit can service shallow- to high-depth oil, gas, and coalbed methane (coal-seam gas) wells in vertical wellhead configurations.

The flush-by unit is smaller and faster than a conventional workover rig, yet equally capable of performing all types of well servicing, especially diagnostics. When a well goes offline, the unit quickly troubleshoots and identifies problems, such as tubing holes, failed or stuck pumps, and parted rods, and then immediately executes the required repair work. The flushby unit can be rigged-up in less than 30 minutes by an operating crew of three to four people, whereas rigging up a standard workover rig requires approximately 4 hours. Daytime and nighttime operations are supported.

Applications

• New well completions

• Pull, pickup, and run conventional sucker rod

• Install sinker bars

• Space out rod strings

• Stroke testing

• Quick down hole pump changes of PCP and or reciprocating pumps

• Perform sucker rod fishing jobs

• Reactive flushing of tubing or casing

• Proactive production flushes

• Corrosion inhibitor displacement and chemical stimulations

• Pressure testing

• Stuffing box and polish rod changes

• Other surface equipment maintenance

• Investigative/diagnostic tool

• Run various tools in or out of tubing such as punches, plugs, and various down hole tools

• Killing Wells