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Title: Method of controlling scale in oil recovery operations

Abstract

Disclosed is a method of producing highly viscous minerals from a subterranean formation by injection of an acidic, thermal vapor stream without substantial scale buildup in downstream piping, pumps and well bore. The process comprises heating the formation by injection of heat, preferably in the form of a thermal vapor stream composed of combustion gases and steam and injecting an acidic compound simultaneously with the thermal vapor stream into the formation at a temperature above the dew point of the thermal vapor stream. The acidic, thermal vapor stream increases the solubility of metal ions in connate water and thus reduces scaling in the downstream equipment during the production of viscous hydrocarbons.

Inventors:
 [1]
  1. (Houston, TX)
Issue Date:
OSTI Identifier:
863952
Patent Number(s):
4282929
Assignee:
Carmel Energy, Inc. (Houston, TX) OSTI
DOE Contract Number:  
ET-78-C-03-2046
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; controlling; scale; oil; recovery; operations; disclosed; producing; highly; viscous; minerals; subterranean; formation; injection; acidic; thermal; vapor; stream; substantial; buildup; downstream; piping; pumps; bore; process; comprises; heating; heat; preferably; form; composed; combustion; gases; steam; injecting; compound; simultaneously; temperature; dew; increases; solubility; metal; connate; water; reduces; scaling; equipment; production; hydrocarbons; thermal vapor; subterranean formation; oil recovery; combustion gases; process comprises; vapor stream; combustion gas; comprises heating; producing highly; recovery operations; viscous hydrocarbons; viscous minerals; highly viscous; /166/

Citation Formats

Krajicek, Richard W. Method of controlling scale in oil recovery operations. United States: N. p., 1981. Web.
Krajicek, Richard W. Method of controlling scale in oil recovery operations. United States.
Krajicek, Richard W. Thu . "Method of controlling scale in oil recovery operations". United States. https://www.osti.gov/servlets/purl/863952.
@article{osti_863952,
title = {Method of controlling scale in oil recovery operations},
author = {Krajicek, Richard W.},
abstractNote = {Disclosed is a method of producing highly viscous minerals from a subterranean formation by injection of an acidic, thermal vapor stream without substantial scale buildup in downstream piping, pumps and well bore. The process comprises heating the formation by injection of heat, preferably in the form of a thermal vapor stream composed of combustion gases and steam and injecting an acidic compound simultaneously with the thermal vapor stream into the formation at a temperature above the dew point of the thermal vapor stream. The acidic, thermal vapor stream increases the solubility of metal ions in connate water and thus reduces scaling in the downstream equipment during the production of viscous hydrocarbons.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {1}
}

Patent:

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