EP 3170968 B1 20191030 - WELL PUMPING SYSTEM AND METHOD
Title (en)
WELL PUMPING SYSTEM AND METHOD
Title (de)
BOHRLOCHPUMPSYSTEM UND -VERFAHREN
Title (fr)
PROCÉDÉ ET SYSTÈME DE POMPAGE D'UN PUITS
Publication
Application
Priority
- US 201514947839 A 20151120
- US 201614991253 A 20160108
Abstract (en)
[origin: EP3170968A1] A well pumping system can include an actuator that reciprocably displaces a rod string, a flowmeter that measures flow of a fluid between a power source and the actuator, and a control system that modifies reciprocal displacement of the rod string by the actuator, in response to an output of the flowmeter. A well pumping method can include reciprocably displacing a rod string, continuously determining a velocity profile of the rod string, and modifying the velocity profile while the rod string reciprocably displaces, in response to an output of a flowmeter. Another well pumping method can include reciprocably displacing a rod string with an actuator, continuously determining displacement in response to an output of a flowmeter, and modifying reciprocating displacement of the rod string by the actuator, in response to the output of the flowmeter.
IPC 8 full level
E21B 43/12 (2006.01)
CPC (source: EP US)
E21B 33/06 (2013.01 - US); E21B 43/126 (2013.01 - EP US); F04B 9/103 (2013.01 - EP US); F04B 19/22 (2013.01 - US); F04B 47/02 (2013.01 - EP US); F04B 49/12 (2013.01 - EP US); F04B 49/20 (2013.01 - EP US); F04B 49/22 (2013.01 - EP US); F04B 53/16 (2013.01 - EP US); F04B 2203/0209 (2013.01 - US); F04B 2203/0903 (2013.01 - EP US)
Citation (examination)
US 5996688 A 19991207 - SCHULTZ GLENN [CA], et al
Designated contracting state (EPC)
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
DOCDB simple family (publication)
EP 3170968 A1 20170524; EP 3170968 B1 20191030; US 2017146007 A1 20170525
DOCDB simple family (application)
EP 16199698 A 20161118; US 201614991253 A 20160108