A New Method for Fracturing Wells Reservoir Evaluation in Fractured Gas Reservoir

Table 4

Fracture decision system in reservoir capacity.

Decision system	Compensated sonic; 𝜇s/ft	Compensated neutron; PU	Compensated density; g/cm^3	Natural gamma; API	Net pay thickness; m	Porosity %	Gas saturation %	Oil-gas display type
I	72–70	18–15	2.4–2.7	61–66	31–24	12–9	61–51	Well kick
II	70–68	15–12	2.7–2.9	66–71	24–18	9–6	5–41	Gas cut
III	68–66	12–9	2.9–3.1	71–77	18–12	6–4	41–30	Gas logging abnormal
IV	66–63	9–6	3.1–3.5	77–82	12–6	4–2	30–20	No display