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E.6. Shut-in identification
A number of Build-ups are visible on the pressure history. Yet the rate history of Well#1,
loaded from the raw downhole permanent sensor is unlikely to present clear null sections
synchronized with the pressure history. In order to ensure synchronization between rate and
pressure for analysis, we will just tag the existing build-ups as such.
E.6.1 • Shut-in indicator
Select the EcrGS01p filtered pressure data node in the data tree (in Plot view and not in Table
view); select the ‘Shut in ribbon’:
Press on Start editing in order to lock the channel and to be allowed to work on it.
The first icon, can be used to set a time selection as a build-up. This is the manual
selection tool.
The second button runs a semi-automatic option to define build-ups. The principle of
this option is to pick any points within a build-up, and to let KClient find the start and end
times automatically. After enabling this option just click anywhere in the period and the shut in
will be defined.
The third button is a fully-automatic option to define shut-ins periods. This time the
algorithm will automatically find all the shut-in periods for you, based on a minimum duration
and delta p settings.
For the moment, let us select the longest shut-in as shown, using the semi-automatic function
click anywhere in the build up to define it, then click on and pick it again to select
it for use: