Use of inductively coupled plasma mass spectrometry (ICPMS) for heavy metal trace analysis of API class G oilwell cement
- BP International Ltd., Middlesex (United Kingdom). Sunbury Research Centre
The request by the U.K. Department of Energy that they should be notified of all materials with greater than 100 ppm of heavy elements in materials dumped in the sea, from offshore oil and gas exploration and production operations is likely to be the forerunner of more stringent environmental controls in the future. In the present work some API Class G oilwell cements have been microanalysed by a novel technique for these cements of inductively coupled plasma mass spectrometry (ICPMS). In the ICPMS technique the sample is activated by an argon laser and ionized by a plasma in a coiled tube at a temperature of 8,000 K. The ions are passed to a nuclear quadrupole resonance detector, where they are identified and semiquantified. Although the technique at present is described as giving semiquantified results, by semiquantified is meant an experimental error or uncertainty of ca. 10%. In other words, there is no problem with the order of magnitude of the results, or, indeed, for any of the individual results obtained for particular trace element concentrations by this method. The only problem for reporting would be if a particular heavy element result were, say 95 ppm (+/-10% uncertainty) when one was looking for heavy element concentrations of 1 00 ppm or more, in order to satisfy the government reporting requirements. This preliminary work has demonstrated the value of ICPMS in heavy element trace analysis of oilwell cements for environmental monitoring purposes.
- OSTI ID:
- 6202576
- Journal Information:
- Cement and Concrete Research; (United States), Vol. 23:4; ISSN 0008-8846
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
02 PETROLEUM
54 ENVIRONMENTAL SCIENCES
ARSENIC
MASS SPECTROSCOPY
CADMIUM
CEMENTS
MARINE DISPOSAL
MULTI-ELEMENT ANALYSIS
CHROMIUM
COBALT
COPPER
LEAD
MERCURY
NICKEL
SELENIUM
THALLIUM
VANADIUM
ZINC
ACCURACY
CEMENTING
ENVIRONMENTAL IMPACTS
OIL WELLS
TRACE AMOUNTS
BUILDING MATERIALS
CHEMICAL ANALYSIS
ELEMENTS
MANAGEMENT
MATERIALS
METALS
SEMIMETALS
SPECTROSCOPY
TRANSITION ELEMENTS
WASTE DISPOSAL
WASTE MANAGEMENT
WELLS
400102* - Chemical & Spectral Procedures
020800 - Petroleum- Waste Management
540320 - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)