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Title: A laboratory evaluation of core-preservation materials

Abstract

This paper documents the results of a laboratory study of the effectiveness of available state-of-the-art core-preservation materials. The ability of the core-sealing material to prevent postpreservation changes in fluid saturations may have a profound effect on subsequent laboratory measurements. Considering the expense involved in obtaining, storing, and analyzing a native-state (oil-cut) core and the purpose for which it was cut, knowledge of exactly what materials can adequately preserve a core until laboratory measurements are made is critical and should not be overlooked. In this laboratory study, saturated Berea sandstone core plugs were preserved in a number of commonly used sealing materials. The sealed plugs were then stored in a humidity-controlled environment and periodically weighed to ascertain the degree of change that had occurred in the saturation of the plug. In addition, this paper discusses and suggests procedures for applying the recommended sealing material.

Authors:
Publication Date:
Research Org.:
Amoco Production Co., Houston, TX (US)
OSTI Identifier:
6229697
Resource Type:
Journal Article
Journal Name:
SPE (Society of Petroleum Engineers) Format. Eval.; (United States)
Additional Journal Information:
Journal Volume: 4:1
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; 04 OIL SHALES AND TAR SANDS; OIL WELLS; SEALING MATERIALS; SANDSTONES; DRILL CORES; MATERIALS TESTING; OIL SATURATION; SCALE MODELS; WELL COMPLETION; MATERIALS; ROCKS; SATURATION; SEDIMENTARY ROCKS; STRUCTURAL MODELS; TESTING; WELLS; 020200* - Petroleum- Reserves, Geology, & Exploration; 040100 - Oil Shales & Tar Sands- Reserves & Exploration- (-1989)

Citation Formats

Auman, J B. A laboratory evaluation of core-preservation materials. United States: N. p., 1989. Web. doi:10.2118/15381-PA.
Auman, J B. A laboratory evaluation of core-preservation materials. United States. https://doi.org/10.2118/15381-PA
Auman, J B. 1989. "A laboratory evaluation of core-preservation materials". United States. https://doi.org/10.2118/15381-PA.
@article{osti_6229697,
title = {A laboratory evaluation of core-preservation materials},
author = {Auman, J B},
abstractNote = {This paper documents the results of a laboratory study of the effectiveness of available state-of-the-art core-preservation materials. The ability of the core-sealing material to prevent postpreservation changes in fluid saturations may have a profound effect on subsequent laboratory measurements. Considering the expense involved in obtaining, storing, and analyzing a native-state (oil-cut) core and the purpose for which it was cut, knowledge of exactly what materials can adequately preserve a core until laboratory measurements are made is critical and should not be overlooked. In this laboratory study, saturated Berea sandstone core plugs were preserved in a number of commonly used sealing materials. The sealed plugs were then stored in a humidity-controlled environment and periodically weighed to ascertain the degree of change that had occurred in the saturation of the plug. In addition, this paper discusses and suggests procedures for applying the recommended sealing material.},
doi = {10.2118/15381-PA},
url = {https://www.osti.gov/biblio/6229697}, journal = {SPE (Society of Petroleum Engineers) Format. Eval.; (United States)},
number = ,
volume = 4:1,
place = {United States},
year = {Wed Mar 01 00:00:00 EST 1989},
month = {Wed Mar 01 00:00:00 EST 1989}
}