EP 0597704 A1 19940518 - Flow testing a well.
Title (en)
Flow testing a well.
Title (de)
Strömungsuntersuchung in Bohrlöchern.
Title (fr)
Essai d'écoulement dans un puits.
Publication
Application
Priority
US 97895192 A 19921113
Abstract (en)
An oil or gas well is flow tested by acoustic transmission (68,70) and reception (102) devices for communicating preferably through at least 5,000 feet (1525m) of an annular column of substantially static fluid which is susceptible to gelling which further attenuates the acoustic signals. The apparatus comprises a tubing string (66) including a packer (92), a tester valve (76). an actuator (109) therefor, an acoustic receiver (102). an acoustic transmitter (68,70) and control means (110) responsive to the receiver (102) to control the actuator (109). <IMAGE>
IPC 1-7
IPC 8 full level
E21B 34/06 (2006.01); E21B 34/16 (2006.01); E21B 47/12 (2006.01); E21B 47/18 (2006.01)
CPC (source: EP)
E21B 34/06 (2013.01); E21B 34/16 (2013.01); E21B 47/18 (2013.01); E21B 47/26 (2020.05)
Citation (search report)
- [X] US 4796699 A 19890110 - UPCHURCH JAMES M [US]
- [A] US 4375239 A 19830301 - BARRINGTON BURCHUS Q, et al
- [A] US 4373582 A 19830215 - BEDNAR JOHN M, et al
- [A] US 3889228 A 19750610 - SHAWHAN E [US]
- [A] GB 2110443 A 19830615 - EXPLORATION LOGGING INC
- [A] US 4541481 A 19850917 - LANCASTER CHARLES E [US]
Designated contracting state (EPC)
DE DK FR GB IT NL
DOCDB simple family (publication)
EP 0597704 A1 19940518; AU 5067493 A 19940526; CA 2102957 A1 19940514; NO 934097 D0 19931112; NO 934097 L 19940516
DOCDB simple family (application)
EP 93309016 A 19931111; AU 5067493 A 19931112; CA 2102957 A 19931112; NO 934097 A 19931112