Title:
COMPOSITE STEEL PIPE FOR OIL WELL
Document Type and Number:
Japanese Patent JP2016023775
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a steel pipe in which corrosion degradation of a steel pipe is solved, and a composite steel structure capable of performing FRP (Fiber Reinforced Plastic) coating to the whole surface of a coupling.SOLUTION: An FRP coating material is improved to have heat resistance of 250°C, a packing is improved to having pressure resistance of 100 MPa, a steel pipe inner surface having no defect valve is subjected to coating formation, and a screw part is made into FRP. A high-temperature resistance resin having high elongation and corrosion resistance can be obtained by epoxy modification. A whole surface is subjected to FRP coating by high-pressure resistance of a fluorine packing due to surface reinforcement, inner surface lamination due to centrifugal molding, adhesion of a pin screw cap, and FRP high-pressure screw molding in a coupling.SELECTED DRAWING: Figure 1
Inventors:
SHIMOSAKON TAKASHI
TAKENISHI KANAKO
UHARA MASAMI
TAMURA SHINICHI
NISHINO YOSHINORI
TAKENISHI KANAKO
UHARA MASAMI
TAMURA SHINICHI
NISHINO YOSHINORI
Application Number:
JP2014149910A
Publication Date:
February 08, 2016
Filing Date:
July 23, 2014
Export Citation:
Assignee:
NBL TECHNOVATOR CO LTD
International Classes:
F16L15/04; B32B1/08; F16J15/10; F16L58/10
Previous Patent: PRESSURE BUFFER AND ATTENUATION FORCE GENERATION MECHANISM
Next Patent: VEHICLE ABSORBER SYSTEM
Next Patent: VEHICLE ABSORBER SYSTEM