Table 2 Rock physical response values of fractured and nonfractured tight sandstone.

From: Geomechanical log responses and identification of fractures in tight sandstone, West Sichuan Xinchang Gas Field

Rock physical response values

Fracture in tight sandstone

No-fracture in sandstone

E (GPa)

Min

20.0

 < 20.0 and > 35.5

Max

35.5

Average

27.7

T (MPa)

Min

4.0

 < 4.0 and > 10.3

Max

10.3

Average

7.1

Co (MPa)

Min

59.8

 < 59.8 and > 109.8

Max

109.8

Average

84.8

μ

Min

0.2

 < 0.2 and > 0.3

Max

0.3

Average

0.25