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1Synchronize gauges
2Stack data with wavelet filter
3Calculate total sandface rateflowrate (see also below)
4Create multi-well history plot
5Analyze data and trim the irrelevant data
6Decompose DTR/CTR
7Assess apparent transmissibility / diffusivity
8Perform numerical tests and compare with PCT DTR/CTR

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ActionMathematicsComments
1

Assess total sandface flowrate:

LaTeX Math Inline
bodyq_t
across the pulsing unit (from QZI log)

,

bottom-hole pressure

LaTeX Math Inline
bodyp_{wf}

and

formation pressure

LaTeX Math Inline
bodyp_e

.


Assuming that recent PLT is available, both flowing and shut-in survey
2

Calculate productivity index


LaTeX Math Block
anchorJ
alignmentleft
J = \frac{q_t}{p_e - p_{wf}}



3Calculate pulsing flowrate history across target formation during PCT


LaTeX Math Block
anchorJ
alignmentleft
q_t(t) = J \cdot (p_e - p_{wf}(t))


Assuming that formation pressure did not change much between PLT and PCT survey



See Also

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Petroleum Industry / Upstream / Subsurface E&P Disciplines / Well testing / PCT

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