METHOD FOR FILLING CO2 INTO EXTRACTED OIL DEPOSIT

PURPOSE:To dispose CO2 at low cost in a stable and harmless manner by a forcing CO2 from the ground or sea level through a pipe into an extracted oil deposit on land or sea by means of a pump and putting a plug in the pipe after a predetermined amount of CO2 has been filled into the deposit. CONSTIT...

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Bibliographische Detailangaben
Hauptverfasser:	HIBI TERUMI, ITOYAMA NAOYUKI, SAITO YOSHIO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS THEREOF CONVEYING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS HANDLING THIN OR FILAMENTARY MATERIAL INORGANIC CHEMISTRY METALLURGY MINING NON-METALLIC ELEMENTS OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PACKING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PNEUMATIC TUBE CONVEYORS SHOP CONVEYOR SYSTEMS STORING THEIR RELEVANT APPARATUS TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE:To dispose CO2 at low cost in a stable and harmless manner by a forcing CO2 from the ground or sea level through a pipe into an extracted oil deposit on land or sea by means of a pump and putting a plug in the pipe after a predetermined amount of CO2 has been filled into the deposit. CONSTITUTION:At first, oil-well pipes 2 are pushed into an extracted oil deposit 1 from the ground or sea level, or existing oil-well pipes for extracting oil or natural gas can be utilized instead. Liquid CO2 is forced for the top of the pipes 2 through the pipes into the deposit 1 by means of pumps 3. Water, oil and natural gas remaining in the deposit 1 are replaced by the liquid CO2 having been forced thereinto, wherein the water, oil and natural gas may be recovered through the pipes 2 from the top of the deposit 1. After a predetermined amount of CO2 has been filled into the deposit, the tops of the pipes 2 are closed with cement, etc. In the case of a submarine oil deposit at a depth of water 500m or more, CO2 can be held under pressure of 50 bar in a liquid state forever.