UBD is a procedure used to drill oil and gas wells where the pressure in the wellbore is kept lower than the static pressure of the formation being drilled. As the well is being drilled, formation fluid flows into the wellbore and up to the surface. This is the opposite of the usual situation, where […]

Overpulls/ Stuck Pipe In Surface Hole If any tight hole is experienced when drilling with water the followint actions should be taken to prevent stuck pipe: When heavy overpulls are experienced, and the above precautions have been taken, but the weight indicator regularly indicate a drop-off in overpulls and then an increase again, do not […]

Drilling Stabilizers is a crucial tool in the oil and gas industry, play a pivotal role in ensuring successful drilling by mitigating challenges related to hole deviation, vibration, and overall drilling accuracy, are specialized devices employed in drilling operations to counteract the potential deviation of the borehole from its intended path. These cylindrical tools are […]

Perforation is the process of creating holes in the casing or liner of a wellbore to allow oil or gas to flow from the reservoir into the well. 1.1 After drilling a well, steel casing is installed and cemented in place to isolate different geological formations.1.2 However, to enable production from the reservoir, holes must […]

A basket grapple overshot is a specialized tool used in oil and gas wellbore fishing operations to retrieve stuck or lost objects, such as drill pipe, tubing, or other downhole equipment. It is a type of overshot fishing tool, meaning it is designed to latch onto and remove obstructions from the wellbore by “overreaching” the […]

A Subsurface Safety Valve (SSSV) is a safety device installed downhole in an oil or gas well to prevent uncontrolled flow of fluids in the event of an emergency. It can be operated from the surface (Surface-Controlled SSSV) or by downhole conditions (Subsurface-Controlled SSSV). Key Features and Functions: Emergency Shutdown: The primary function of an […]

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