Sand control screen pipe for layered oil production

The utility model discloses an intelligent layered oil production sand control screen pipe which comprises a base pipe, a first fixing block is arranged on the outer side of the base pipe, a hollow pipe is arranged on one side of the first fixing block, a fixing ring is arranged on the side, away from the first fixing block, of the hollow pipe, and a second fixing block is connected to the outer side of the fixing ring in a sliding mode. A first sliding groove matched with the fixing ring is formed in the second fixing block, a first spring is arranged on one side of the fixing ring, and a third fixing block is arranged on one side of the first fixing block and located in the hollow pipe. Compared with a traditional device, the filtering opening of the composite sand filtering net pipe is arranged to be in the trapezoid shape, accumulation caused by sand grain blocking can be prevented, the sand control screen pipe can be prevented from being damaged by punching of sand grains after long-term use due to the p