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Title: High-temperature sand consolidation

Abstract

A sand consolidation system has been developed that is stable to wellbore temperatures of 700/sup 0/F (371/sup 0/C). Two improvements in technique have contributed to this development. First, a controlled quantity of catalyst is absorbed on the sand. Consequently, consolidation occurs only on or very near the sand grains, resulting in a high-permeability consolidation. Second, the reaction is driven to completion by avoiding, insofar as possible, the adverse effect of water. The resin used for the consolidation is a very viscous derivative of furfuryl alcohol that requires a diluent to make it injectable. The diulent used to reduce viscosity is a hydrolyzable ester. The diluted fluid, which is sill more viscous than water, displaces much of the water present in the pore space. During the catalyzed consolidation, water produced by the polymerization is removed by reaction with the diluent (hydrolysis of the ester). The high-molecular-weight polymeric consolidation is better able to resist the high temperatures encountered in steam-displacement producing wells. Adaptation of the technology has been made so that the process can also be used in low-temperature wells. Because of the catalysis method, long shelf life is guaranteed for the consolidating formation.

Authors:
; ;
Publication Date:
Research Org.:
Texaco Inc., Houston, TX (US)
OSTI Identifier:
6944875
Alternate Identifier(s):
OSTI ID: 6944875
Resource Type:
Journal Article
Resource Relation:
Journal Name: SPE (Society of Petroleum Engineers) Product. Eng.; (United States); Journal Volume: 3:2
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; 03 NATURAL GAS; NATURAL GAS WELLS; SAND CONSOLIDATION; OIL WELLS; ADSORBENTS; ADSORPTION; CATALYSTS; ESTERS; FURFURAL; HIGH TEMPERATURE; SANDSTONES; WELL COMPLETION; WORKING FLUIDS; ALDEHYDES; FLUIDS; FURANS; HETEROCYCLIC COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; ROCKS; SEDIMENTARY ROCKS; SORPTION; WELLS 020300* -- Petroleum-- Drilling & Production; 030300 -- Natural Gas-- Drilling, Production, & Processing

Citation Formats

Friedman, R.H., Suries, B.W., and Kleke, D.E. High-temperature sand consolidation. United States: N. p., 1987. Web.
Friedman, R.H., Suries, B.W., & Kleke, D.E. High-temperature sand consolidation. United States.
Friedman, R.H., Suries, B.W., and Kleke, D.E. Fri . "High-temperature sand consolidation". United States. doi:.
@article{osti_6944875,
title = {High-temperature sand consolidation},
author = {Friedman, R.H. and Suries, B.W. and Kleke, D.E.},
abstractNote = {A sand consolidation system has been developed that is stable to wellbore temperatures of 700/sup 0/F (371/sup 0/C). Two improvements in technique have contributed to this development. First, a controlled quantity of catalyst is absorbed on the sand. Consequently, consolidation occurs only on or very near the sand grains, resulting in a high-permeability consolidation. Second, the reaction is driven to completion by avoiding, insofar as possible, the adverse effect of water. The resin used for the consolidation is a very viscous derivative of furfuryl alcohol that requires a diluent to make it injectable. The diulent used to reduce viscosity is a hydrolyzable ester. The diluted fluid, which is sill more viscous than water, displaces much of the water present in the pore space. During the catalyzed consolidation, water produced by the polymerization is removed by reaction with the diluent (hydrolysis of the ester). The high-molecular-weight polymeric consolidation is better able to resist the high temperatures encountered in steam-displacement producing wells. Adaptation of the technology has been made so that the process can also be used in low-temperature wells. Because of the catalysis method, long shelf life is guaranteed for the consolidating formation.},
doi = {},
journal = {SPE (Society of Petroleum Engineers) Product. Eng.; (United States)},
number = ,
volume = 3:2,
place = {United States},
year = {Fri May 01 00:00:00 EDT 1987},
month = {Fri May 01 00:00:00 EDT 1987}
}