(19)
(11) EP 4 330 342 A1

(12)

(43) Date of publication:
06.03.2024 Bulletin 2024/10

(21) Application number: 22715450.7

(22) Date of filing: 17.03.2022
(51) International Patent Classification (IPC): 
C09K 8/035(2006.01)
C09K 8/12(2006.01)
(52) Cooperative Patent Classification (CPC):
C09K 8/035; C09K 8/12
(86) International application number:
PCT/US2022/020782
(87) International publication number:
WO 2022/231723 (03.11.2022 Gazette 2022/44)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 27.04.2021 US 202117241505

(71) Applicant: Chevron Phillips Chemical Company LP
The Woodlands, Texas 77380 (US)

(72) Inventors:
  • RAMIREZ, Mario
    Houston, Texas 77007 (US)
  • DINA, Oyindunmola
    Spring, Texas 77382 (US)
  • PRITCHARD, Ryan
    Montgomery, Texas 77316 (US)
  • SCHULTZ, Katrina
    Spring, Texas 77389 (US)
  • JACKSON, Christopher
    Humble, Texas 77346 (US)
  • WATSON, Elan
    Montgomery, Texas 77316 (US)
  • BANKS, Marcus D.
    Spring, Texas 77379 (US)
  • STOUFFER, Carleton
    Conroe, Texas 77301 (US)
  • BISHOP, Marshall D.
    Conroe, Texas 77304 (US)

(74) Representative: Haseltine Lake Kempner LLP 
Cheapside House 138 Cheapside
London EC2V 6BJ
London EC2V 6BJ (GB)

   


(54) WELLBORE DRILLING COMPOSITIONS