Harold J. Vinegar - Houston TX George L. Stegemeier - Houston TX
Assignee:
Board of Regents, The University of Texas System - Austin TX
International Classification:
A62D 300
US Classification:
40512885, 40512815, 4051284, 4051282, 40512835
Abstract:
An in situ thermal desorption soil remediation system may be used to remove contamination from soil. Heat may be applied to the soil by metallic strip heaters that have large cross sectional areas as compared to conventional heater elements. The strip heaters may be made of stainless steel. Large cross sectional areas of the strip heaters allow for large areas of thermal contact between the strip heaters and the soil being treated. Casings may not be needed between the strip heaters and the soil. The operating temperature of the strip heaters is self-regulating. As the temperature of a strip heater increases, the electrical resistance of the strip heater also increases. The increase in resistance causes a decrease in the power dissipation of the strip heater. The decrease in power dissipation as temperature increases allows a steady state heater strip temperature to be attained during use.
Harold J. Vinegar - Houston TX George L. Stegemeier - Houston TX
Assignee:
Board of Regents, The University of Texas System - Austin TX
International Classification:
E21B 4312
US Classification:
166296, 166205, 166317, 40512875, 40512885
Abstract:
A perforated casing may be placed within contaminated soil. Perforations within the casing may be covered during insertion of the casing into the ground. Covering the perforations may inhibit plugging of the perforations during installation. Covering the perforations may also inhibit worker exposure to contaminant dust or vapors during insertion of the casing into the ground. The covering for the perforations in a casing may be plugs that are placed or formed in the casing perforations. Alternately, the covering for the perforations may be a sleeve placed adjacent to the perforations. After installation of the casing, heating or chemically treating the perforation coverings may remove the coverings and allow insertion or removal of fluids and vapor through the casing.
In Situ Thermal Processing Of A Hydrocarbon Containing Formation To Produce Sulfur Containing Formation Fluids
Scott Lee Wellington - Belliare TX Harold J. Vinegar - Houston TX Eric Pierre de Rouffignac - Houston TX Ilya Emil Berchenko - Friendswood TX George Leo Stegemeier - Houston TX Etuan Zhang - Houston TX Thomas David Fowler - Katy TX Robert Charles Ryan - Houston TX
Assignee:
Shell Oil Company - Houston TX
International Classification:
E21B 4324
US Classification:
166245, 1662511, 166261, 166267, 1662721, 166302
Abstract:
A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H , and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. The produced mixture may contain condensable hydrocarbons with sulfur containing hydrocarbons.
In Situ Thermal Processing Of A Coal Formation To Control Product Composition
John Michael Karanikas - Houston TX Scott Lee Wellington - Belliare TX Harold J. Vinegar - Houston TX Eric Pierre de Rouffignac - Houston TX Ilya Emil Berchenko - Friendswood TX George Leo Stegemeier - Houston TX Etuan Zhang - Houston TX Thomas David Fowler - Katy TX Robert Charles Ryan - Houston TX
A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H , and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. Heat and pressure applied to the formation may be controlled so that a majority of the hydrocarbons produced from the formation have carbon numbers less than 25. Conditions may be controlled to produce low quantities of olefins in condensable hydrocarbons produced from the formation and low quantities of olefins in non-condensable hydrocarbons produced from the formation.
In Situ Thermal Processing Of A Coal Formation To Produce Nitrogen And/Or Sulfur Containing Formation Fluids
Scott Lee Wellington - Belliare TX Harold J. Vinegar - Houston TX John Michael Karanikas - Houston TX Ilya Emil Berchenko - Friendswood TX George Leo Stegemeier - Houston TX Etuan Zhang - Houston TX Thomas David Fowler - Katy TX Robert Charles Ryan - Houston TX
Assignee:
Shell Oil Company - Houston TX
International Classification:
E21B 4324
US Classification:
166245, 1662511, 166261, 166267, 1662721, 166302
Abstract:
A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H , and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. The mixture produced from the formation may contain condensable hydrocarbons fluids with some nitrogen containing hydrocarbons and/or with some sulfur containing hydrocarbons.
In Situ Thermal Processing Of A Hydrocarbon Containing Formation With A Selected Oxygen Content
Scott Lee Wellington - Belliare TX Harold J. Vinegar - Houston TX Eric Pierre de Rouffignac - Houston TX Ilya Emil Berchenko - Friendswood TX George Leo Stegemeier - Houston TX Kevin Albert Maher - Bellaire TX Etuan Zhang - Houston TX Thomas David Fowler - Katy TX Robert Charles Ryan - Houston TX
Assignee:
Shell Oil Company - Houston TX
International Classification:
E21B 4324
US Classification:
16625001, 166302, 166256, 1662721
Abstract:
A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H , and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. A formation to be treated may produce a relatively large amount of condensable hydrocarbons and/or a relatively large amount of non-condensable hydrocarbons. Hydrocarbons within the formation may have a relatively low initial elemental oxygen weight percentage.
In Situ Thermal Processing Of A Coal Formation With A Selected Vitrinite Reflectance
Etuan Zhang - Houston TX Harold J. Vinegar - Houston TX Scott Lee Wellington - Belliare TX Eric Pierre de Rouffignac - Houston TX John Michael Karanikas - Houston TX Ilya Emil Berchenko - Friendswood TX George Leo Stegemeier - Houston TX Kevin Albert Maher - Bellaire TX Thomas David Fowler - Katy TX Robert Charles Ryan - Houston TX
Assignee:
Shell Oil Company - Houston TX
International Classification:
E21B 4324
US Classification:
16625001, 166302, 1662721, 166256
Abstract:
A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H , and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. The formation to be treated may be chosen so that the mixture produced from the formation will have a desired amount of condensable hydrocarbons and non-condensable hydrocarbons. The formation to be treated may be chosen based on an initial vitrinite reflectance of the formation.
In Situ Thermal Processing Of A Coal Formation To Produce A Condensate
Scott Lee Wellington - Belliare TX Harold J. Vinegar - Houston TX Eric Pierre de Rouffignac - Houston TX John Michael Karanikas - Houston TX Ilya Emil Berchenko - Friendswood TX George Leo Stegemeier - Houston TX Etuan Zhang - Houston TX Thomas David Fowler - Katy TX Robert Charles Ryan - Houston TX
A coal formation may be treated using an in situ thermal process. Hydrocarbons, H , and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. Heat input into the formation may be controlled to raise a temperature of the formation at a selected rate.