Advertisement
DEVIFLEX
This procedure description is a short guide in how to perform a DeviFlex survey
in vertical boreholes. It is required that the reader knows how to perform a
regular DeviFlex survey.
The operation will be described step-by-step and provide information necessary
for a successful operation.
Doc no:
Author: RL
- VERTICAL SURVEY
Orientation Unit
Revision 3
DeviFlex
Checked by: GV
Date: 29.09.2011
Advertisement
Table of Contents
Summary of Contents for Devico DeviFlex
- Page 1 DEVIFLEX - VERTICAL SURVEY This procedure description is a short guide in how to perform a DeviFlex survey in vertical boreholes. It is required that the reader knows how to perform a regular DeviFlex survey. The operation will be described step-by-step and provide information necessary for a successful operation.
- Page 2 3) Pull out a length of drill string equal to the depth found in step 2) + 6 meters. 4) Remove the spear head from the DeviFlex and replace it with the Orientation Unit. rom the DeviFlex and replace it with the...
- Page 3 5) Connect the DeviFlex to the PDA and enter the Online window. Align the bubble level on the Orientation Unit with Gravity Toolface (Gr. Toolface) of 0°. 6) Tighten the adjustment nut to keep the DeviFlex and the Orientation Unit aligned.
- Page 4 8) Insert the DeviFlex with Orientation Unit into the drill string, and fasten it by rotating the handles clockwise. 9) Rotate the drill string until the side with the bubble level points towards north, or any known direction. Use complimentary optical sight for optimal accuracy.
- Page 5 Mark the top and bottom of the drill rods to ensure no rotational movement occur as the drill string is lowered down. 12) Survey until the drill bit reaches hole bottom. Pull out drill rods to retrieve the DeviFlex and download data.
- Page 6 15) Click “Merge Vertical” and enter the end depth of the vertical survey, and the hole index of the normal survey. Click “Start” . 16) The true borehole trajectory is now presented in the index of the oriented survey.
- Page 7 459095 - Expanding Orientation Unit DF...
Need help?
Do you have a question about the DeviFlex and is the answer not in the manual?
Questions and answers