Article provided by: Swabpro (2018) Ltd.
Where to Find the best Oilfield Swabbing in Grande Prairie
Oil wells are producing fluid over time that needs to be removed. The fluid buildup happens when it is drilled the first time, drillers should create a “frac” to open zones for future swabbing. The fluids in the frac zones are swabbed to keep the well working smoothly. Once these fluids are taken, the hole at the bottom creates pressure to push the gas or oil upwards and out of the well.
Swab Pro Ltd offers swabbing services to help you kick start your oil wells again. Our services include low-pressure swabbing, high-pressure swabbing, plunger or bumper, casing swabbing, and oilfield swabbing in Grande Prairie.
Why Swabbing is Needed
There are situations that a short operation can figure out if the bottom hole is circulating well after the swabbing. So below are the factors that increase the chances of swabbing.
BHA and Balled up Bit- These two are considered to increase swabbing effect as it acts as a piston. There’s a higher chance that a well is underbalanced due to swabbing if it is currently at a state of near balance.
Properties of Mud- If the well has poor mud properties, high gel strength, and high viscosity, it will have a tendency to develop a swab kick while being pulled out. Therefore it is important to monitor the fluid properties from drilling and necessary action plans should be implemented to keep the mud in good shape.
Hydrostatic pressure vs Formation pressure - If the formation pressure falls slightly below or equal to the hydrostatic pressure, swabbing the well should be done easily. Being on top and monitoring these factors will solve the issue. There is a need to keep the trip margin above pressure reduction through swabbing.
Heaving Formations and swelling - These two can help reduce wellbore diameter giving a leeway between the BHA, open hole, or a bit. The leeway will pull out a small clearance and has a higher chance for swabbing the well.
Pulling Speed - A higher chance of swabbing the influx is through a faster tripping speed. However, it is critical to keep monitoring the well while being pulled out and its pulling speed should not loosen the well’s control situation.
Larger OD - A larger OD of drilling tools such as a fishing tool, drill collar, coring tool, mud motor, and others can enhance the tendency for swabbing. Careful tripping with these larger tools should prevent a future problem.
There are several ways to keep the well in good condition and minimize swabbing. Keeping the mud healthy and maintaining good properties in it will help minimize swabbing. Also, it is important to keep the pulling of a hole in a reasonable speed, adding lubricant additives and maintaining a good hydraulic to drilling will prevent BHA or bit balled up. You can also add chemicals to help prevent the clay from swelling in a water-based mud, using an oil-based mud drilled to form a clay is also an option.
We, at the Swab Pro, offers you professional services and caters to different oilfield swabbing in Grande Prairie.Oilfield swabbing Grande Prairie
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