Tag Bottom

Tag Bottom is a complete manual of wellbore cleanouts on coiled tubing, snubbing units and rigs: 86 chapters, 114 worked equations, three reference wells carried through every chapter, and an atlas of 28 onshore basins from the Williston to Cook Inlet.

What it covers

• Foundations: why wells fill up, the history of the cleanout, the wellbore as a system, reading the fill.
• The physics: fluid properties, flow regimes, velocity and capacity, settling and slip velocity, cuttings transport in deviated and horizontal hole, friction pressure and ECD.
• Conveyance: workover units, jointed pipe, coiled tubing string and unit management, fatigue, buckling and lockup, extended reach, snubbing.
• The bottom hole assembly: motors, mills and bits, agitators and vibration tools, circulating subs, jars, junk baskets and BHA discipline.
• Fluids and chemistry: base fluids, sweeps, friction reducers, surfactants, scale and corrosion.
• The onshore basin atlas and reference tables.

Paperback on Amazon Kindle

Also by Adam

• The Chair: The Complete Oilfield Field Manual

Adam Clifford also consults on completions and workovers: see oil and gas services, or browse all books.