This feature allows you to investigate what options are available if you should get stuck in the well, for both pipe-conveyed and wireline operations (examples of both are shown below). It provides calculations to determine what the surface weight conditions are for free pipe or cable/tools (for reference) and what they are for partially stuck pipe, completely stuck pipe and after back-off. Neutral point calculations are provided to assist with back-off calculations (jointed pipe only, obviously). The Wizard does not currently include pipe rotation effects, but this will be included in the next release 7.0 in the second half of 2002.

Step 1 involves specifying the measured depth, and the Tension Transfer Criterion. The latter addresses the issue of “working down” tension or torque to the tools or BHA.

Step 2 concerns locating where the pipe/cable/tool is stuck.

Step 3 is concerned with getting free. What is the maximum pull, where is the neutral point, and what is the expected weight after backing-off.

The Question & Answer format is used for maximum ease of use.

Clicking on the above question gives the following result:

The most important calculation is performing a pull test to find the stuck depth:

Neutral Point calculations are valuable for planning back-off depth.