Global Patent Index - EP 0980463 A1

EP 0980463 A1 20000223 - USING EQUIPMENT IN A WELL SYSTEM

Title (en)

USING EQUIPMENT IN A WELL SYSTEM

Title (de)

ANWENDUNG VON GERÄTEN IN EINEM BOHRLOCHSYSTEM

Title (fr)

UTILISATION DE MATERIEL DANS UN SYSTEME DE PUITS

Publication

EP 0980463 A1 (EN)

Application

EP 98925514 A

Priority

  • EP 98925514 A
  • EP 9802578 W
  • EP 97201266 A

Abstract (en)

[origin: WO9849424A1] A method and well system are disclosed which allow drilling, service, maintenance and/or monitoring equipment to be used downhole and to be moved into, through and/or from the well system whilst production of oil and/or gas can continue during at least part of the period during which the equipment is moved or used in the well system. The well system thereto comprises a plurality of entrance points at the earth surface and a system of underground wellbores which provide a subsurface connection between said entrance points so that production of oil and/or gas can continue via at least one of said entrance points whilst equipment is moved and/or operated via another entrance point.

IPC 1-7

E21B 43/30; E21B 23/00

IPC 8 full level

E21B 23/00 (2006.01); E21B 43/30 (2006.01)

CPC (source: EP)

E21B 23/00 (2013.01); E21B 43/305 (2013.01)

Citation (search report)

See references of WO 9849424A1

Designated contracting state (EPC)

DE DK GB IT NL

DOCDB simple family (publication)

WO 9849424 A1 19981105; AR 012500 A1 20001018; AU 730212 B2 20010301; AU 7760798 A 19981124; CA 2285476 A1 19981105; CA 2285476 C 20061121; CN 1091833 C 20021002; CN 1252851 A 20000510; EA 000922 B1 20000626; EA 199900978 A1 20000626; EG 21404 A 20011031; EP 0875661 A1 19981104; EP 0980463 A1 20000223; ID 22927 A 19991216; NO 995247 D0 19991027; NO 995247 L 19991117; OA 11210 A 20030718

DOCDB simple family (application)

EP 9802578 W 19980427; AR P980101900 A 19980424; AU 7760798 A 19980427; CA 2285476 A 19980427; CN 98804394 A 19980427; EA 199900978 A 19980427; EG 41998 A 19980418; EP 97201266 A 19970428; EP 98925514 A 19980427; ID 991280 A 19980427; NO 995247 A 19991027; OA 9900237 A 19991028