Sage Technologies
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Reading the fluid level tape
The above example shows a quick view of the fluid level. The tape begins at the shot of the
Pressure Pulse Gun, which is the first mark on the tape. The fluid level occurs at the deepest kick
downward on the tape, just before the 3-second timing mark.
The fluid level will be measured by counting the collars between the first mark of the echo and
the downward kick of the fluid level. This calculation of collars will be done on the full-size well echo
tape.
For example, if you are printing the above compressed tape, when you see the fluid level kick down, you
know you have a fluid level. So, press Stop on the keypad, to stop the above tape from printing, and then
press Print, to print the full-size echo tape that can be used to calculate the fluid level depth.
Calculating distance to the fluid in collars
Tubing collars are easily identifiable on most wells. And, by using an
average joint length
for
each tubing joint, along with the total number of observed joints, it is possible to calculate the depth to the
fluid.
Once you have the full-size tape, you use the 11-point dividers to easily mark off sets of 10
collars on the tape. To set up the dividers, find a spot near the beginning of the tape where there are ten
evenly spaced marks (these are the tubing collars registering on the tape). Move the points on the 11-point
dividers to exactly line up with the downward points on the tape, (below left). This is the setting for your
dividers, and on most wells, they should not need to be moved again for calibration.
The
dividers
basically represent a 10-collar section of the well casing.
Place the left-most point of the now-pre-set dividers at the first mark on the tape (above right).
This is where the gas gun fired the shot. Many times collars are not visible early on in tape due to a large
shot size, and that is where the 11-point dividers are useful.
Содержание Acoustic Fluid Logger III
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