Research Article

Numerical Investigation on Gas Accumulation and Gas Migration in the Wavy Horizontal Sections of Horizontal Gas Wells

Table 2

Exhaust conditions under different curvatures.

CurvatureDrilling fluid flow velocity/(m·s−1)
0.80.91.01.11.21.31.41.62

0.2FFYYYYYYY
0.3FFFYYYYYY
0.4FFFFFYYYY
0.5FFFFFFYYY

Y = exhaust; F = not exhausted.