Gel break / breaking
Gel breaking in drilling refers to reducing the gel strength (viscosity) of drilling mud after it has been stagnant, or, in…
Perforation
In drilling, perforation is creating holes through the cemented casing and into the oil/gas formation to establish flow paths, allowing hydrocarbons to enter…
Hermetic test (or hermetical test)
In drilling, a hermetic test (or hermetical test) is a critical pressure test to ensure the production casing or wellbore is completely sealed, preventing…
Trip Tanks
A trip tank in oil and gas drilling is a small, calibrated tank used to precisely measure drilling mud volume when…
Full Opening Safety Valves (FOSV)
A Full Opening Safety Valve (FOSV), also known as a TIW valve, is a crucial, manual, ball-type valve used in oil and…
Flow Couplings
A flow coupling (or blast joint) in oil & gas is a heavy-walled tubular component installed in a well’s production string…
Crossovers
Crossover subs, are crucial tubular components in drilling operations that adapt different connection types or sizes within the drill string, allowing…
Drill String
A drill string is a long column of interconnected steel pipes and tools, extending from the drilling rig to the drill…
Pup Joints
A pup joint is a short, non-standard length of pipe (casing, tubing, or drill pipe) used in oil & gas operations…
Casing Scrapers
In drilling, a casing scraper is a downhole tool with blades that cleans the inside of wellbore casings by removing obstructions like scale,…