  The present paper deals with some wormhole solutions which are obtained by
taking two different shape functions along with zero tidal force. For obtaining
wormhole solutions, anisotropic fluid and a equation of state
$p_t=-\frac{a}{\rho}$ related by Chaplygin gas are considered where $\rho$ is
the energy density, $p_t$ is tangential pressure and $a$ is positive constant.
Energy conditions are examined for two different models, and it is found that a
major energy conditions are satisfied in a region.
