Month: October 2022
- Drilling
Bottomhole Assembly Tools
Bottomhole Assembly (BHA) Components consist of varying tool types from: Stabilizers Stabilizers, by centralizing the drill string at selected points…
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What is a Drill Collar?
A drill collar is a device used at the lowest part of a drill string, an important part of the…
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Drill Pipe
Dimensions and Strengths Like other oilfield tubulars, drill pipe comes in a variety of lengths, diameters, weights and grades of…
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Kelly The Key to Efficient Operations
The kelly is a primary link between the drilling rig's surface equipment and the bit, and is therefore a critical…
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Drill String Design | Drill String Overview
A well-designed drill string is instrumental in optimizing penetration rates, controlling wellbore deviation, maintaining an "in gauge" ...
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Drill String and Bit Considerations in Deviated Wells
Drill String Design As inclination angle increases in a directional or horizontal well, the borehole walls support more of the…
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Underbalanced Drilling in Directional Wells
Drilling Directional Wells Underbalanced The main justifications for drilling a directional well underbalanced are to (1) reduce drilling costs, and/or…
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