Global Patent Index - EP 2888446 A4

EP 2888446 A4 20160706 - COMMUNICATION USING A SPACER FLUID

Title (en)

COMMUNICATION USING A SPACER FLUID

Title (de)

KOMMUNIKATION UNTER VERWENDUNG EINER ABSTANDSFLÜSSIGKEIT

Title (fr)

COMMUNICATION À L'AIDE D'UN FLUIDE D'ESPACEMENT

Publication

EP 2888446 A4 20160706 (EN)

Application

EP 13850601 A 20131028

Priority

  • US 201213664520 A 20121031
  • US 2013067040 W 20131028

Abstract (en)

[origin: US2014118157A1] Disclosed are systems and methods for transmitting commands from a surface to downhole electronic equipment using pills of a spacer fluid. One method of communicating down a wellbore may include providing a flow of a first fluid along a flow path, introducing a series of one or more pills of a second fluid into the flow of the first fluid at a first point along the flow path, and detecting the series of one or more pills of the second fluid at a second point along the flow path, the second point being separated from the first point. In certain embodiments, a series of brine pills may be introduced into a flow of a drilling fluid.

IPC 8 full level

E21B 47/12 (2012.01); E21B 47/18 (2012.01)

CPC (source: EP US)

E21B 47/12 (2013.01 - EP US); E21B 47/13 (2020.05 - US)

Citation (search report)

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)

US 2014118157 A1 20140501; AR 093251 A1 20150527; AU 2013338258 A1 20150402; AU 2013338258 B2 20160707; CA 2885864 A1 20140508; CA 2885864 C 20181030; EP 2888446 A1 20150701; EP 2888446 A4 20160706; WO 2014070648 A1 20140508

DOCDB simple family (application)

US 201213664520 A 20121031; AR P130103931 A 20131028; AU 2013338258 A 20131028; CA 2885864 A 20131028; EP 13850601 A 20131028; US 2013067040 W 20131028