Swabbing is a method of removing fluids from a gas or oil well "off the production zone." Swabbing is a form of art. The machine's "feel" must be in sync with the good pressures, sounds, and depth for the operator to be effective. Oilfield swabbing in Grande Prairie, AB, is carried out by machines equipped with a winch and cable.
A drive system and a foldable mast with a sheave or pulley on top. It is usually mounted on a truck to transport the equipment from one well to another. Swab machines are available in a variety of sizes. The depth of the well to be swabbed determines the size or capacity of the machine.
A swab rig driver approaches a well that needs to be swabbed or serviced. Backs the machine up close to the well most of the time. The operator uses a sheave to raise the mast and align it with the well's centreline. The winch drum and mast crown pulley or sheave are used to lower cable and tools into and out of a well. A weight bar, "jars," and swab cup tools are common swab tools. A "swab cup" is a rubber cup used to seal the well bore, well pipe, or well tubing from the inside.
Oilfield swabbing in Grande Prairie tools is used to hold the swab cups. The tools are lowered to the fluid level in a well. While the winch drum with wire lowers cable and tooling into the well into the fluids, swab tools allow fluids to flow up through and past the swab cups. The cable is then wound up, and tools, swab cups, and a column of fluids are lifted up and out of the well by the winch drum.
"Dry up the Well" is the goal. The industry standard is to lift approximately 6 barrels of "dead" fluid or oil up and out of a well. A "run" is the lifting of approximately 6 barrels of fluid. Some wells only require one run, while others necessitate numerous "runs."
Gas or oil is pushed up and out of the well during production. The hydrostatic pressures on the formation are relieved as fluid is removed. The well is once again "flowing".
Oilfield swabbing in Grande Prairie, AB Machines are the best for various reasons. The first is efficiency. The oilfield swabbing in Grande Prairie Master hydrostatic winches has a mechanical torque efficiency of over 95%. A mechanical chain drive winch system may have higher reduction ratios, but it can lose 20-30% of torque due to inefficiencies in the reduction drive train.
Oilfield swabbing in Grande Prairie, AB machines require very little maintenance, about half of what a traditional chain drive rig requires. Before overhauling, you get at least a 15-year design life. Then it's simple and cost-effective to rebuild and try again.