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Quick, simple, and inexpensive way to evaluate the accuracy of reference electrodes used for obtaining field measurement of structure-to-electrolyte potentials.
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Measuring relative corrosiveness of inhibited solutions for chemical cleaning in a static system. Conducted with corrosion coupons in a clean solution. Surface/volume ratio. Inhibitor handling. Pitting. Reporting
Métodos de pruebas de campo para estimar las populaciones de bacterianas que se encuentran en los sistemas de gas y petróleo.
Intended for use by technical field and service personnel. Describes field methods for estimating bacterial populations found in oilfield systems. Sampling methods and media for enumerating bacteria are described.
DOWNLOADABLE HISTORICAL DOCUMENT Relative and quantitative measure of the ability of scale inhibitors to prevent (1) the formation and (2) the precipitation of solid BaSO4 and/or SrSO4, which are necessary and critical stages in scale deposition.
Measure of the ability of scale inhibitors to prevent (1) the formation and (2) the precipitation of solid BaSO4 and/or SrSO4. - critical stages in scale deposition. Performance of different scale inhibitors under laboratory conditions.
This method tests the vapor-inhibiting ability (VIA) of volatile corrosion inhibitor (VCI) materials. Evaluates vapor transport and corrosion protection with simple, low-cost apparatus.
Test methods designed to provide a relative and quantitative measure of the abilities of scale inhibitors to prevent the precipitation of solids, a necessary and critical stage in the formation of scale. Historical Document 1990
Test methods designed to provide a relative and quantitative measure of the abilities of scale inhibitors to prevent the precipitation of solids, a necessary and critical stage in the formation of scale.
A fit for purpose qualification of new corrosion inhibitors was carried out for in a gas and condensate field. The depth of production well is 4,500 m and the bottom hole temperature and pressure are 180ºC and 50 MPa respectively. The methodology and result of the inhibitor evaluation under a sweet condition was summarized. Two brands of corrosion inhibitors had been used each for production tubing and flowline in the field. New corrosion inhibitors were evaluated for the both applications. The corrosion inhibitor efficiency for high shear service and the adhesion tendency were evaluated with a rotating cage autoclave and a dip and drip experiment respectively. In order to evaluate the tendency of emulsion forming, oil, brine and an inhibitor were poured into a centrifuge tube and it was shaken intensely. Gas chromatograph - mass spectrometer (GC-MS) and Fourier transform infrared spectroscopy (FT-IR) were studied to measure the residual amount of inhibitor. Finally, the field trial was conducted with a new inhibitor. The new inhibitor was adopted successfully for the both services. The risk of emulsion forming became lower because the mixing of two brands of inhibitors was avoided. Reducing the number of the chemicals contributed to reduction of the operation cost too.
Since 2002, a corrosion inhibiting chemistry package has been an integral part of two specific industrial insulations. This paper explains, at a molecular level, how this package engages a two-pronged defense (physical coating and pH buffering) against CUI.
An oil shale field was found to exhibit classic signs of a heavy microbial burden. Data generated by this exhaustive testing and screening were used to influence biocide choice and applications in the field. Impact of biocides on the field microbial characteristics are described and discussed.