Source identification for oil-based drill cuttings on the seabed based on stable carbon isotopes

被引：0

作者：

Bent Barman Skaare

Morten Schaanning

Pål Tore Mørkved

机构：

[1] Norwegian Institute for Water Research,Department of Environmental Technology

[2] Institute for Energy Technology,undefined

[3] Institute for Energy Technology,undefined

来源：

Environmental Chemistry Letters | 2009年 / 7卷

关键词：

Drill cuttings; Biodegradation; Carbon isotopes; Mineral oil; Stable isotopes;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

This paper demonstrates how stable carbon isotopes can be utilized to identify the source of oil-based drill cuttings discharges and estimate the time of their deposition. The base-oil used in drilling mud systems may be biodegraded by seabed microflora. Effects of such processes make it difficult to identify sources of discharges based on the oil’s molecular structure. However, the stable isotope fingerprint of the base oil may vary for each batch of base-oil. Because carbon isotopic ratios in compounds with more than ten carbons are resistant to fractionation during biodegradation, this may be used as a tool to identify the source of drill cuttings discharges.

引用

页码：183 / 189

页数：6

共 44 条

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