(19)
(11) EP 4 824 388 A1

(12)

(43) Date of publication:
21.10.2026 Bulletin 2026/43

(21) Application number: 23961687.3

(22) Date of filing: 28.12.2023
(51) International Patent Classification (IPC): 
E21B 34/14(2006.01)
E21B 34/10(2006.01)
 E21B 34/08(2006.01)
(52) Cooperative Patent Classification (CPC):
F16K 31/1225; E21B 34/08; F16K 1/32; E21B 34/10
(86) International application number:
PCT/US2023/086241
(87) International publication number:
WO 2025/128128 (19.06.2025 Gazette 2025/25)
(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
KH MA MD TN

(30) Priority: 11.12.2023 US 202318535388

(71) Applicant: Halliburton Energy Services Inc.
Houston, Texas 77032-3219 (US)

(72) Inventors:
  • GASSEN, Matthew
    Carrollton, Texas 75006 (US)
  • VICK, JR., James Dan
    Carrollton, Texas 75006-5401 (US)

(74) Representative: Hoffmann Eitle 
Patent- und Rechtsanwälte PartmbB Arabellastraße 30
81925 München
81925 München (DE)

   


(54) HIGH FLOW, INSERT SAFETY VALVE, WELL PRESSURE INSENSITIVE