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SPT – Self Pulse Test

Created by Arthur Aslanyan (Nafta College), last modified on Feb 15, 2018

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1. Objectives

Assess reservoir volume around appraisal well
Assess reservoir permeability and thickness variation around appraisal well

2. Deliverables


V_hc	Potential hydrocarbon reserves
V_e	Drainage volume
A_e	Drainage area
k_s	Permeability of the skin-zone
h_s	Effective thickness of the skin-zone
k_near	Permeability of the near-reservoir zone
h_near	Effective thickness of the near-reservoir zone
k_far	Permeability of the far-reservoir zone
h_far	Effective thickness of the far-reservoir zone
S	Skin-factor

3. Inputs

Property	Description	Data Source
B_o	Oil Formation Volume Factor	PVT samples
c_o	Oil compressibility	PVT samples
c_w	Water compressibility	PVT samples
c_r	Rock compressibility	PVT samples
s_wi	Initial water saturation	Core samples
$\begin{array}{l}\phi\end{array}$	Porosity	Core samples

4. Procedure

Test = Test 1 + Test 2 + Test 3
Test 1 = high freq pulsations (10 pulses with 0.3 day)
Test 2 = mid freq pulsations (10 pulses with 1.5 day)
Test 3 = Low freq pulsations (5 pulses with 5.5 day)

5. Intepretation

Single well with circle boundary
High density LGR
High density time grid (seconds)

References

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