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Title: Using Chemicals to Optimize Conformance Control in Fractured Reservoirs

Abstract

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 three tasks, each of which addresses one of the above objectives. This work is directed at both injection wells and production wells and at vertical, horizontal, and highly deviated wells.

Authors:
Publication Date:
Research Org.:
National Petroleum Technology Office, Tulsa, OK (US)
Sponsoring Org.:
USDOE Office of Fossil Energy (FE) (US)
OSTI Identifier:
762884
Report Number(s):
DOE/BC/15110-4
TRN: AH200034%%154
DOE Contract Number:
AC26-98BC15110
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 20 Sep 2000
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; FRACTURED RESERVOIRS; GELS; HYDRAULIC FRACTURES; INJECTION WELLS; PERMEABILITY; PLUGGING AGENTS; PERFORMANCE; OIL WELLS; DIRECTIONAL DRILLING

Citation Formats

Seright, Randall S. Using Chemicals to Optimize Conformance Control in Fractured Reservoirs. United States: N. p., 2000. Web. doi:10.2172/762884.
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Seright, Randall S. Using Chemicals to Optimize Conformance Control in Fractured Reservoirs. United States. doi:10.2172/762884.
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Seright, Randall S. Wed . "Using Chemicals to Optimize Conformance Control in Fractured Reservoirs". United States. doi:10.2172/762884. https://www.osti.gov/servlets/purl/762884.
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@article{osti_762884,
title = {Using Chemicals to Optimize Conformance Control in Fractured Reservoirs},
author = {Seright, Randall S.},
abstractNote = {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 three tasks, each of which addresses one of the above objectives. This work is directed at both injection wells and production wells and at vertical, horizontal, and highly deviated wells.},
doi = {10.2172/762884},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Sep 20 00:00:00 EDT 2000},
month = {Wed Sep 20 00:00:00 EDT 2000}
}
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Technical Report:
View Technical Report (6.21 MB)
DOI:  10.2172/762884
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  • This technical progress report describes work performed from October 1, 1998 through December 31, 1998, for the project, ''Using Chemicals to Optimize Conformance in Fractured Reservoirs.'' In our first task area, disproportionate permeability reduction, a literature survey and analysis are underway to identify options for reducing permeability to water much more than that to oil. In our second task area, we are encouraging the use of our recently developed software for sizing gelant treatments in hydraulically fractured production wells. In several field applications, we noted the importance of obtaining accurate values of the static reservoir pressure before using our program.more » In our third task area, we examined gel properties as they extruded through fractures. We found stable pressure gradients during injection of a large volume of a one-day-old Cr(III)-acetate-HPAM gel into a 0.04-in.-wide, four-ft-long fracture. This finding confirms that gel injection (under our specific circumstances) did not lead to continuously increasing pressure gradients and severely limited gel propagation. Our experiments also provided insights into the mechanism for gel propagation during extrusion through fractures.« less

  • ; ; ; ...
    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. The third objective is to develop procedures to optimize blocking agent placement in naturally fractured reservoirs. This research project consists of three tasks, each ofmore » which addresses one of the above objectives. Our work is directed at both injection wells and production wells and at vertical, horizontal, and highly deviated wells.« less

  • 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. The third objective is to develop procedures to optimize blocking-agent placement in naturally fractured reservoirs. This research project consists of three tasks, each of which addresses one of the above objectives. Work is directed at both injection wells and production wells and at vertical, horizontal, and highly deviatedmore » wells.« less

  • ; ; ; ...
    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 highly deviated wells.

  • ; ; ; ...
    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 problems. The third objective was to develop procedures to optimize blocking agent placement in naturally fractured reservoirs.