A laboratory evaluation of core-preservation materials

Journal Article · Wed Mar 01 00:00:00 EST 1989 · SPE (Society of Petroleum Engineers) Format. Eval.; (United States)

DOI:https://doi.org/10.2118/15381-PA· OSTI ID:6229697

Auman, J B

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.

• Research Organization: Amoco Production Co., Houston, TX (US)
• OSTI ID: 6229697
• Journal Information: SPE (Society of Petroleum Engineers) Format. Eval.; (United States), Vol. 4:1
• Country of Publication: United States
• Language: English

Related Subjects

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)