EXPANDING SCREEN TUBE AND CONSTRUCTION METHOD THEREFOR

WIPO Patent Application WO/2021/203799

A1

An expanding screen tube, comprising a screen tube base tube (1). An axial through hole is provided in the screen tube base tube (1), connection structures that connect to one another are provided on both ends of the screen tube base tube (1), a filtration hole is provided in a wall of the filter tube base tube (1), and a porous expansion layer (2) is fixedly connected on an outer wall of the filter tube base tube (1), the porous expansion layer (2) being produced using a compressible non-memory-foam foam material. The present expanding screen tube is able to achieve sand control and well wall support effects using a porous expansion layer not having a memory function that can only be achieved in the prior art by using a memory material, greatly reducing costs for manufacturing, using, and constructing the expanding screen tube. Further provided is a construction method for the expanding screen tube.

WO/2002/008562	COMBINED LINER AND MATRIX SYSTEM, USE OF THE SYSTEM AND METHOD FOR CONTROL AND MONITORING OF PROCESSES IN A WELL
WO/2008/137388	MOUNTING SYSTEM FOR A FIBER OPTIC CABLE AT A DOWNHOLE TOOL
WO/2016/140578	CONNECTION SYSTEM FOR SUBSEA PIPELINES

LI XIAOSEN (CN)
DENG FUCHENG (CN)

PCT/CN2021/073556

October 14, 2021

January 25, 2021

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GUANGZHOU INST ENERGY CONVERSION CAS (CN)

E21B43/08; E21B41/00

CN103384751A	2013-11-06
CN208364105U	2019-01-11
CN101379269A	2009-03-04
CN105626002A	2016-06-01
CN1601051A	2005-03-30
US20170074077A1	2017-03-16
US20150191983A1	2015-07-09

GUANGZHOU KEYUE I.P. LAW OFFICE (CN)

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