US 12,264,547 B2
Wellhead corrosion mitigation
Faisal Mohammed Alissa, Dammam (SA); and Norah Waled Aljuryyed, Dhahran (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Dec. 14, 2022, as Appl. No. 18/065,754.
Prior Publication US 2024/0200419 A1, Jun. 20, 2024
Int. Cl. E21B 33/03 (2006.01)
CPC E21B 33/03 (2013.01) 16 Claims
OG exemplary drawing
 
1. A system comprising:
a wellhead comprising:
a landing base;
a wellhead pipe, wherein the wellhead pipe extends from the landing base; and
a surface casing, wherein the surface casing at least partially surrounds the wellhead pipe;
a hydrophobic sand pack comprising a hydrophobic sand exhibiting less than 1% swelling by volume upon being covered on an upward facing side with an equal volume of liquid water at 85° F. (29.4° C.) over a period of 24 hours, the hydrophobic sand pack at least partially surrounding: the landing base, the wellhead pipe, the surface casing, or any combination thereof, wherein the hydrophobic sand comprises sand and a hydrophobic compound, wherein the hydrophobic compound comprises a silane compound, and wherein the hydrophobic sand pack is present below ground level and above ground level.