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Directional drilling (or slant drilling) is the practice of drilling non-vertical bores. It can be broken down into four main groups: oilfield directional drilling, utility installation directional drilling, directional boring (horizontal directional drilling - HDD), and surface in seam (SIS), which horizontally intersects a vertical bore ...
Drilling Formula Sheets is a set of Drilling Formulas used commonly by drilling engineers in the onshore and offshore oil drilling industry. They are used as part of a key piece of engineering work called Well Control .
Directional boring, also referred to as horizontal directional drilling (HDD), is a minimal impact trenchless method of installing underground utilities such as pipe, conduit, or cables in a relatively shallow arc or radius along a prescribed underground path using a surface-launched drilling rig. Directional boring offers significant ...
The primary use of real-time surveys is in directional drilling. For the directional driller to steer the well towards a target zone, he must know where the well is going, and what the effects of his steering efforts are. [citation needed] MWD tools also generally provide toolface measurements to aid in directional drilling using downhole mud ...
Depiction of a directional well. Line (a) is an imaginary line representing the true vertical depth, while line (b) is the borehole itself, and its length is called the measured depth. A directional well is the oil industry term for an oil well with a borehole that deviates from a vertically straight line. This is normally done with the ...
They are generally programmed by the measurement while drilling (MWD) engineer or directional driller who transmits commands using surface equipment (typically using either pressure fluctuations in the mud column or variations in the drill string rotation) which the tool responds to, and gradually steers into the desired direction.
Drilling data logger that can interface with SGS Genesis: SGS Canada Inc. GPL: Windows & Microsoft Access: Microsoft Access VBA: Microsoft Access is not necessary, the free runtime is sufficient. Simple graphical interface, Integrity reinforcement, Reporting tools, Satellite Database, Database Validation, Assays QA/QC management with graphics ...
Extended Reach Drilling (ERD) is directional drilling of very long non-vertical wells. The aims of ERD are: a) to reach a larger area from one surface drilling location, and b) to keep a well in a reservoir for a longer distance in order to maximize its productivity and drainage capability.