Screen Pipe for Thick Oil Thermal Recovery in Horizontal Well Completion

Abstract

A screen pipe, comprises a base pipe with a plurality of oil inlet holes arranged on an outer wall of the base pipe; wherein the screen pipe comprises: a plurality of reinforcing ribs are disposed on an outer circumference wall of the base pipe along an axial direction of the base pipe; a wrap wire is winded at intervals on the plurality of reinforcing ribs along a circumferential direction of the base pipe; and a triangular block shaped foam iron is filled in a space between two adjacent reinforcing ribs of the plurality of reinforcing ribs. When the present invention is in use, the thick oil enters into the gap between the wrap wire and the drive pipe through the wrap wire gap. After filtration by the foam iron, the thick oil enters into the base pipe through the inlet hole, realizing pumping and transportation of the oil.

What is claimed is: 
     
         1 . A screen pipe for thick oil thermal recovery in horizontal well completion, comprising a base pipe with a plurality of oil inlet holes arranged on an outer wall of the base pipe, wherein the screen pipe comprises:
 a plurality of reinforcing ribs, disposed on an outer circumference wall of the base pipe along an axial direction of the base pipe;
 a wrap wire, winded at intervals on the plurality of reinforcing ribs along a circumferential direction of the base pipe; and 
   a triangular block shaped foam iron, filled in as pace between two adjacent reinforcing ribs, of the plurality of reinforcing ribs.   
     
     
         2 . The screen pipe for thick oil thermal recovery in horizontal well completion according to  claim 1 , wherein further comprising: a plurality of strengthening ribs annularly disposed on the wrap wire along the axial direction of the base pipe. 
     
     
         3 . The screen pipe for thick oil thermal recovery in horizontal well completion according to  claim 1 , wherein an outer wall of the wrap wire is coated with TiALN-WC/C coating. 
     
     
         4 . The screen pipe for thick oil thermal recovery in horizontal well completion according to  claim 1 , further comprising: a connector, wherein each of two ends of the base pipe is connected with a blind pipe through the connector respectively.