Effective rotary steerable drilling systems overcome most of the problems with steerable motors by providing continuos pipe rotation while drilling. This is accomplished, with the tool reported on in this paper, with a non-rotating steerable sleeve containing three extendable pads that push against the borehole wall.Continue reading “Rotary Steerable Drilling Systems”
The importance of terminology properly defining a drilling fluid is becoming of greater significance. This includes the drilling contractor, the operator, the mud service engineer, and even the well completion service specialists who
must work with the well after the hole is down. As the number of products added to a given drilling fluid formulation increases, so does the importance of proper mud classification, proper metering and measurement of fluids and special additives.
Water-based drilling fluids, regardless of the name assigned to them, usually contain clays, water soluble chemicals (including salts), a pH control additive (hydroxyl source), and one or more organic polymers, surfactants, and deflocculants.
How properly used solids control equipment in different types (Natural mud, chemically-treated mud and saltwater mud) Water-Based Mud (WBM).
Continue reading “WBM And Solids Control Equipment”