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Conformance Improvement Using Gels

Description: This report describes work performed during the third and final year of the project, ''Conformance Improvement Using Gels.'' Corefloods revealed throughput dependencies of permeability reduction by polymers and gels that were much more prolonged during oil flow than water flow. This behavior was explained using simple mobility ratio arguments. A model was developed that quantitatively fits the results and predicts ''clean up'' times for oil productivity when production wells are returned to ser… more
Date: September 30, 2004
Creator: Seright, Randall S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Conformance Improvement Using Gels

Description: This technical progress report describes work performed from September 1, 2003, through February 29, 2004, for the project, ''Conformance Improvement Using Gels.'' We examined the properties of several ''partially formed'' gels that were formulated with a combination of high and low molecular weight HPAM polymers. After placement in 4-mm-wide fractures, these gels required about 25 psi/ft for brine to breach the gel (the best performance to date in fractures this wide). After this breach, stabi… more
Date: March 1, 2004
Creator: Seright, Randall S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Conformance Improvement Using Gels

Description: This report describes work performed during the second year of the project, ''Conformance Improvement Using Gels.'' The project has two objectives. The first objective is to identify gel compositions and conditions that substantially reduce flow through fractures that allow direct channeling between wells, while leaving secondary fractures open so that high fluid injection and production rates can be maintained. The second objective is to optimize treatments in fractured production wells, where… more
Date: September 1, 2003
Creator: Seright, Randall S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Use of Polymers to Recover Viscous Oil From Unconventional Reservoirs

Description: This final technical progress report summarizes work performed the project, 'Use of Polymers to Recover Viscous Oil from Unconventional Reservoirs.' The objective of this three-year research project was to develop methods using water soluble polymers to recover viscous oil from unconventional reservoirs (i.e., on Alaska's North Slope). The project had three technical tasks. First, limits were re-examined and redefined for where polymer flooding technology can be applied with respect to unfavora… more
Date: September 30, 2011
Creator: Seright, Randall
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Conformance Improvement Using Gels

Description: This technical progress report describes work performed from June 20 through December 19, 2001, for the project, ''Conformance Improvement Using Gels''. Interest has increased in some new polymeric products that purport to substantially reduce permeability to water while causing minimum permeability reduction to oil. In view of this interest, we are currently studying BJ's Aqua Con. Results from six corefloods revealed that the Aqua Con gelant consistently reduced permeability to water more tha… more
Date: February 28, 2002
Creator: Seright, Randall S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Aperture-Tolerant, Chemical-Based Methods to Reduce Channeling

Description: This final technical progress report describes work performed from October 1, 2004, through May 16, 2007, for the project, 'Aperture-Tolerant, Chemical-Based Methods to Reduce Channeling'. We explored the potential of pore-filling gels for reducing excess water production from both fractured and unfractured production wells. Several gel formulations were identified that met the requirements--i.e., providing water residual resistance factors greater than 2,000 and ultimate oil residual resistanc… more
Date: September 30, 2007
Creator: Seright, Randall S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Using Chemicals to Optimize Conformance Control in Fractured Reservoirs

Description: This research project has three objectives. The first objective is to develop a capability to predict and optimize the ability of gels to reduce permeability to water more than that to oil or gas. The second objective is to develop procedures for optimizing blocking agent placement in wells where hydraulic fractures cause channeling problems. The third objective is to develop procedures to optimize blocking agent placement in naturally fractured reservoirs. This research project consists of thr… more
Date: September 20, 2000
Creator: Seright, Randall S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Conformance Improvement Using Gels

Description: This research project had two objectives. The first objective was to identify gel compositions and conditions that substantially reduce flow through fractures that allow direct channeling between wells, while leaving secondary fractures open so that high fluid injection and production rates can be maintained. The second objective was to optimize treatments in fractured production wells, where the gel must reduce permeability to water much more than that to oil.
Date: September 26, 2002
Creator: Seright, Randall S.; Schrader; Hagstrom, John, II; Wang, Ying; Al-Dahfeeri, Abdullah & Marin, Amaury
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Using Chemicals to Optimize Conformance Control in Fractured Reservoirs

Description: This report describes work performed during the first year of the project, ''Using Chemicals to Optimize Conformance Control in Fractured Reservoirs.'' This research project has three objectives. The first objective is to develop a capability to predict and optimize the ability of gels to reduce permeability to water more than that to oil or gas. The second objective is to develop procedures for optimizing blocking agent placement in wells where hydraulic fractures cause channeling problems. Th… more
Date: September 27, 1999
Creator: Seright, Randall S.; Liang, Jenn-Tai; Schrader, Richard; Hagstrom, John, II; Liu, Jin & Wavrik, Kathryn
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Using Chemicals to Optimize Conformance Control in Fractured Reservoirs

Description: The objectives of this project are: (1) to develop a capability to predict and optimize the ability of gels to reduce permeability to water more than that to oil or gas, (2) to develop procedures for optimizing blocking agent placement in wells where hydraulic fractures cause channeling problems, and (3) to develop procedures to optimize blocking agent placement in naturally fractured reservoirs. Work was directed at both injection wells and production wells and at vertical, horizontal, and hig… more
Date: September 7, 2001
Creator: Seright, Randall; Liang, Jenn-Tai; Schrader, Richard; Hagstrom, John, II; Wang, Ying; Kumar, Anand et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Using Chemicals to Optimize Conformance Control in Fractured Reservoirs

Description: This report describes work performed during the third and final year of the project, Using Chemicals to Optimize Conformance Control in Fractured Reservoirs. This research project had three objectives. The first objective was to develop a capability to predict and optimize the ability of gels to reduce permeability to water more than that to oil or gas. The second objective was to develop procedures for optimizing blocking agent placement in wells where hydraulic fractures cause channeling prob… more
Date: October 29, 2001
Creator: Seright, Randall S.; Liang, Jenn-Tai; Schrader, Richard; Hagstrom, John, II; Wang, Ying; Kumar, Ananad et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Conformance Improvement Using Gels

Description: This research project had two objectives. The first objective was to identify gel compositions and conditions that substantially reduce flow through fractures that allow direct channeling between wells, while leaving secondary fractures open so that high fluid injection and production rates can be maintained. The second objective was to optimize treatments in fractured production wells, where the gel must reduce permeability to water much more than that to oil.
Date: September 26, 2002
Creator: Seright, Randall S.; Schrader, Richard; Hagstrom, John, II; Wang, Ying; Al-Dahfeeri, Abdullah; Gary, Raven et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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