What is swabbing in the oil and gas industry?

Gas and oil wells produce fluid over the life of a well. When a well is first Drilled. Usually, it is “fracked” to help open productions zones. Fracking can include water. After “frac” the fluids are recovered by swabbing to “kick” the well off. As fluids are lifted up and off, The bottom hole pressure pushes the gas and or oil up and out the well. About 40% of the frack Fluids come back at Kick off. The balance of frac fluid flows back with production over time.

Throughout the life of a well. Fluids flow back with natural gas or oil. Sometimes as well ages, the bottom hole pressures fall off. There might not be enough pressure to push all the water or fluids out of a well. Water gets above the oil or gas. Then production falls off. The well must be swabbed out to maintain production.

Swabbing is a process to remove fluids “off the production zone” from a gas or oil well. Swabbing is an art form. The operator must have the “feel” of the machine in sync with the well pressures, sounds, And depth.

The swabbing process is accomplished by machines that have a winch with cable. A foldable mast with Sheave or pulley On top, and a drive system. Usually truck-mounted to move the equipment from well to well. Swab machines come in various sizes. Size or machine capacity is determined by the depth of the well to be swabbed.

A swab rig operator drives to the well to be swabbed or serviced. Usually backs the machine close to the well. The operators raise the mast with sheave and align the mast with the centerline of a well. The operator lowers cable and tools into and out of a well via the winch drum and mast crown pulley or sheave.  Swab tools usually include a weight bar, “jars” and swab cup tools. A “swab cup” is a rubber cup used to seal off against the inside of the wellbore or well pipe or well tubing.

The swab tools are used to support the swab cups. The tools are lowered into a well, down to the fluid level.  Swab tools allow fluids to flow up through and past to above the swab cups, as the winch drum with cable lowers cable and tooling into the well into the fluids. Then the winch drum winds up the cable, tools, swab cups, and a column of fluids are lifted up and out of the well.

The accepted practice in the industry is to lift about 6 barrels of “dead” fluid or oil up and out of a well. This lifting of about 6 barrels of fluid is called a “run”. Some wells require one run; Other wells require many multiple runs. To “Dry up the Well” As the fluid is removed, this relieves the hydrostatic pressures on the formation. Production gas or oil pushes up and out of the well. The well is “flowing” again. The conventional swabbing winch drum has been driven or powered by an engine with transmission, chain, and sprocket to turn the winch drum. This design originated in late 1890-1910. Almost all manufacturers still use this antiquated designs.

Tiger General’s Swab Master Designs incorporate directly to winch drum hydraulic drives. Tiger General hydraulic drives are far more efficient than old fashioned mechanical chain drive winch drums There are several factors. One is efficiency. Tiger General Swab Master hydrostatic winches deliver in excess of 95% of mechanical torque efficiency. A mechanical chain drive winch system might provide higher reduction ratios, but they can lose 20-30% of torque through reduction drive train inefficiencies Swab Master Machines requires very little maintenance, In fact about 1/2 the maintenance of an old Fashioned chain drive rig.

You get at least 15-year design life before overhaul. Then it’s easy and reasonable to rebuild and go again. All other rigs run about 5-8 years or less, and then need to be overhauled. Tiger General Swab Master pumps and motors are rated for at least 20,000 hours before overhaul….  If they are maintained properly with clean oil.

Get more fluid in the tank with Tiger Vision, A Tiger General, LLC Patented Proprietary hardware/software data acquisition and monitoring system built on Microsoft Windows 7 platform.  It utilizes a standard solid-state IP-66 touch screen computer to record, save, and display on screen incoming Swab Master and engine electronic data.  The data is displayed using sweeping analog/digital color-coded gauges for the operator to monitor in the real-time truck engine and rig operating systems.

This system provides the operator with downhole information such as depth (in and out of the well), line speed, gross and net loads, system pressures, charge pressure, tubing, and wellhead pressures.  Data output for the gauges can be selected and shown on the display in either English or Metric.

Programmable depth alarm warning horns are used to indicate when tooling is reaching the top of the well with warning light indicators. Set up is easily done with the help of Configuration screens.  All data can be downloaded to the laptop or mobile devices.  The computer is powered with a 12V to 110V inverter and protected with a battery power back up. The remote keyboard included Optional Data logging allows anyone you choose to view the data in Real-Time and print out on spreadsheet report, Anywhere in the world.  What do the other guys offer??………. Not Much.

Blow away all competition with your Swab Master Machines

Call or email Mark Overholt at Tiger General LLC for more information to learn why Swab Master Machines delivers your very best value. Call Mark  330 725 4949 X122

Email mark   mark@tigergeneral.com   learn more by visiting www.tigergeneral.com

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