Surface-treated gravel pack screens and methods of reducing deposition of a contaminant on a surface of a gravel pack screen

A method of reducing deposition of a contaminant on a metal surface of a gravel pack screen, the method comprising:

• (a) contacting the metal surface of a gravel pack screen either directly or through an intermediate organometallic layer with a fluorinated material in a diluent, wherein the fluorinated material has the following structure:
• wherein A is an oxygen radical or a chemical bond;
• n is 1 to 20;
• Y is H, F, CnH2n+1 or CnF2n+1;
• X is H or F;
• b is at least 1, m is 0 to 50, p is 1 to 20, and Z is an acid group or an acid derivative;
• and (b) forming a hydrophobic surface layer on the metal surface of the gravel pack screen.

A method of reducing deposition of a contaminant on a metal surface of a gravel pack screen, the method comprising:

• (a) contacting the metal surface of a gravel pack screen through an intermediate organometallic layer with a fluorinated material in a diluent comprising 3-ethoxyperfluoro (2-methylhexane), wherein the fluorinated material has the following structure:
• wherein A is an oxygen radical;
• n is 1 to 20;
• Y is F or CnF2n+1;
• X is H;
• b is at least 1, m is 0 to 50, p is 1 to 20, and Z is a phosphonate group;
• and (b) forming a hydrophobic surface layer on the metal surface of the gravel pack screen.