公开(公告)号：WO2021058251A1

公开(公告)日：2021-04-01

申请号：PCT/EP2020/074579

申请日：2020-09-03

Applicant: LAMBERTI SPA

Inventor： CROSTA, Daniele ,  GIARDINI, Lorenzo ,  MERLI, Luigi ,  FLORIDI, Giovanni ,  LI BASSI, Giuseppe

IPC: C23F11/04 ,  C09K8/54 ,  C23F11/12 ,  C23F11/14

Abstract: Corrosion inhibitors for use in acidic fluids for the treatment of subterranean formations and acidic subterranean treatment fluids comprising between 0.1 and 4.0 g/100 ml of said corrosion inhibitors, based on the fluid total volume.

公开(公告)号：WO2022167415A1

公开(公告)日：2022-08-11

申请号：PCT/EP2022/052343

申请日：2022-02-01

Applicant: LAMBERTI SPA

Inventor： VIGANO', Laura ,  GIARDINI, Lorenzo ,  PRIVITERA, Letizia ,  MERLI, Luigi ,  CROSTA, Daniele ,  PIROVANO, Pierangelo ,  D'ALOIA, Alessandro ,  PICCO, Cristina

IPC: C09K8/035 ,  C09K8/52 ,  C09K8/68

Abstract: Method for inhibiting the swelling and/or the dispersion of shales during the treatment of subterranean shale formations comprising the steps of: a) providing a subterranean treatment fluid comprising from 0.001 to 10% by weight of a polyester obtained by reacting a dicarboxylic acid having from 2 to 8 carbon atoms with a specific alkoxylated diamine; b) introducing said treatment fluid into a wellbore at a pressure sufficient to treat the subterranean shale formations.