|
|
|
Prestack inversion identification of organic reef gas reservoirs of Permian Changxing Formation in Damaoping area, Sichuan Basin, SW China
|
|
ZHOU Lu,ZHONG Feiyan,YAN Jiachen,ZHONG Kexiu,WU Yong,XU Xihui,LU Peng,ZHANG Wenji,LIU Yi
|
|
| |
Table 1 Formulas for calculating S-waves based on porosity.
|
|
| Porosity interval | S-wave calculating formula | Low porosity
0< Porosity ≤2% | ${{v}_{\text{s}}}^{2}=0.261\ {{v}_{\text{p}}}^{2}+481.57$ | Medium porosity
2%< Porosity ≤12% | ${{v}_{\text{s}}}^{2}={{0.241}_{{}}}7\ {{v}_{\text{p}}}^{2}+{{2}_{{}}}311.43$ | High porosity
Porosity >12% | ${{v}_{\text{s}}}^{2}={{0.245}_{{}}}6\ {{v}_{\text{p}}}^{2}+{{1}^{{}}}603.3$ |
|
|
|