casing

Oil Well Casing

    Types of Casing  Based on the primary function of the casing string, there are five types of casing to be distinguished. Stove or Surface Casing The stovepipe is usually driven to sufficient depth (15–60 ft) to protect loose surface formation and to enable circulation of the drilling fluid. This pipe is sometimes cemented […]

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Well Control

what is well control Basically, all formations penetrated during drilling are porous and permeable to some degree. Fluids contained in pore spaces are under pressure that is overbalanced by the drilling fluid pressure in the well bore. The borehole pressure is equal to the hydrostatic pressure plus the friction pressure loss in the annulus. If […]

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drilling

Oil-Base and Synthetic-Base Muds

Drilling Mud Tests The field tests for rheology, mud density, and gel strength are accomplished in the same manner as outlined for water-based drilling mud. The main difference is that rheology is tested at a specific temperature, usually 120◦F or 150◦F. Because oils tend to thin with temperature, heating fluid is required and should be reported on the […]

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Drilling Fluids Books

Theory and Applications of Drilling Fluid Hydraulics Download ———————————————————— Drilling Fluids Manual Download  ————————————————————- Amoco – Drilling Fluid Manual Download —————————— Drilling Fluids Technology Download  ————————————————————-   see our Drilling Video Course – more than 140 FREE movies about oil well drilling   Drilling Fluids & Health Risk Management Download Development of Water-Based Drilling Fluids customized […]

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