Pre-filling sand prevention method of highly-deviated well casing pipe and dedicated sand-filter pipe thereof

The invention discloses a pre-filling sand prevention method of a highly-deviated well casing pipe and a dedicated sand-filter pipe of the method. The pre-filling sand prevention method of the highly-deviated well casing pipe comprises the following steps: acquiring the petrophysical property parameters of production; confirming the sand-blocking precision of a sand-filter pipe, and further confirming the parameters of pre-filling ceramsite and the parameters of an inner wire-wrapped screen and an outer wire-wrapped screen; processing a mineshaft; laying the sand-filter pipe, laying the sand-filter pipe to a necessary position of a highly-deviated well according to the operating instruction of laying the sand-filter pipe, hanging a packer on the sand-filter pipe, and connecting an oil pipe below the packer, and the packer adopts a high temperature resistance type; injecting steam, and laying a pump after injecting the steam; and peripheral turning is carried out to the sand-filter pipe directly after the sand