WellCAD Basics - Advanced Logic Technology

1.3.1.21 Engineering Log
Description:
BOOK 1 - WELLCAD BASICS - 33
The Engineering Log can be used to show construction and completion details of a
well. Logs can be presented side by side to depict a diary of construction or drilling
events. Objects such as different casing, cementation, gravel pack, water and more
can be combined and displayed.
Four different kinds of symbol classes are supported:
- Drill Items, they are characterized by a top depth, bottom depth and an external
diameter. They present the drill hole itself.
- Solid Items, these are cylindrical items which occupy a volume in the borehole
(such as a packer). A top depth, bottom depth, an external diameter and a radial
position within the hole describe them.
- Hollow Items are cylindrical and occupy a volume in the borehole with an
internal space that can be filled with any other liquid or solid item. A typical
example is a casing. A top and bottom depth, an external diameter, an internal
diameter and a radial position in the hole characterize hollow items.
- Liquid Items fill all accessible borehole volume within a given depth range from
a given injection point (e.g. cement or water). A top depth, bottom depth,
injection point and radial position describe liquid items.
Data Format:
Item, TopDepth, BottomDepth, Position, External
Diameter, Internal Diameter, Injection Depth
E.g.