Horizontal Well Test Analysis- Linear Flow

[husamujahed]

Does anyone knowst of a method to analyze the linear flow of a Build up test to obtain the average reservoir pressure? The well(s) I am analyzing are highly deviated displaying similar flow regimes as a horizontal well but the build up tests do not last long enough to see pseudo radial flow.

[kochichiro]

Try to use deviated well model in Saphir, in case of highly deviated well you should get response quiet similar to horizontal well. Here is a little manual for you -

[link Point to another website Only the registered members can access]

[husamujahed]

After analyzing the response further, it is actually attributed to the geology of the formation (channel sands). The linear flow after the initial radial flow is a transition to the second flattening of the derivative due to a change of thickness of the sands. I have modeled it using a custom 2-D map i created in Ecrin. I am still wondering if there is a way to get the correct p* and eventually p average if only that linear flow is apparent.