EP 1161616 A1 20011212 - A METHOD FOR INCREASING RECOVERY OF HYDROCARBONS
Title (en)
A METHOD FOR INCREASING RECOVERY OF HYDROCARBONS
Title (de)
VERFAHREN ZUR ERHÖHUNG DER AUSBEUTE AN KOHLENWASSERSTOFFEN
Title (fr)
PROCEDE POUR AMELIORER LA RECUPERATION D'HYDROCARBURES
Publication
Application
Priority
- NO 0000070 W 20000228
- NO 991219 A 19990312
Abstract (en)
[origin: WO0055474A1] It has been aimed at disclosing a method which, in relation to prior art, ensures increased recovery of hydrocarbons from natural reservoirs (16, 18, 20) and where knowledge of reservoir conditions such as e.g. pressure and temperature has been provided. Based on these known reservoir conditions, hydrocarbon components in the form of light hydrocarbons which will appear in liquid phase at said reservoir conditions are provided and being injected in large amounts into the reservoir, e.g. within an area in an oil zone, beneath producing wells (22). By means of these light hydrocarbon components, the respective reservoir area is washed out, in that the components dissolve and attack themselves to and entrain washed out residual oil and/or other remaining heavier hydrocarbons for recovery. As the reservoir is gradually drained of hydrocarbons, the hydrocarbon liquid injection point/points is/are moved closer to the production well(s) (22), preferably concurrent with water being replenished.
IPC 1-7
IPC 8 full level
E21B 43/16 (2006.01); E21B 43/20 (2006.01)
CPC (source: EP)
E21B 43/16 (2013.01); E21B 43/166 (2013.01); E21B 43/20 (2013.01)
Citation (search report)
See references of WO 0055474A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU
DOCDB simple family (publication)
WO 0055474 A1 20000921; AU 2950700 A 20001004; EP 1161616 A1 20011212; NO 309538 B1 20010212; NO 991219 D0 19990312; NO 991219 L 20000913
DOCDB simple family (application)
NO 0000070 W 20000228; AU 2950700 A 20000228; EP 00908135 A 20000228; NO 991219 A 19990312