Premium
Application of copolymeric particulates for oilwell in‐depth performance control
Author(s) -
Lu Hongsheng,
Huang Zhiyu,
Chen Qaunsheng,
Wang Jian,
Feng Yujun
Publication year - 2006
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.24885
Subject(s) - particulates , spark plug , materials science , permeability (electromagnetism) , composite material , chemistry , mechanical engineering , engineering , biochemistry , organic chemistry , membrane
The properties of two copolymeric particulates used for oilwell in‐depth performance control were investigated systematically. The lab‐scale studies showed that the average diameter of these particulates (E5 and G6) is 77.76 μm with the standard deviation of 2.16%. The two particulates exhibit good dilatability when immersed in 20 × 10 4 mg/L NaCl solution. Their capability of water retention (150 days) was 90% at 80°C. In addition, they exhibited good injectivity, driving performance and plug, and satisfied toughness index. The diffluence experiments confirmed that the coefficient of the profile modification were 85.7, 98.7, 86.1, and 98.1% when the permeability levels were 4.05 and 15.0, respectively. When using the two particulates, the average recovery ratio can reach 21%. The procedures mentioned earlier could be used as industry criteria to evaluate all kinds of particulate used as in‐depth performance controllers. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 5330–5335, 2006