... with different pH and pH2S. In addition, the effect of different surface conditions and microstructures were investigated by comparing machined surface with surface preserved with mill scale which was formed during hot rolling as well as surfaces containing a local hard zone. The morphological characteristics...

... Abstract There exists a commonly-held belief that as-delivered oil country tubular goods (OCTG) possess superior resistance to sulfide stress cracking (SSC) than standardized testing for SSC may identify. This belief relies on the nature of the mill scale present on OCTG being a barrier...

... Abstract This paper describes scale cleanout jobs performed with Coiled Tubing offshore in the North Sea on 7 well for Phillips Petroleum Company Norway The cleanout has been done by first perform milling runs with a standard PDM motor, then the completions jewelry has been cleaned by use...

... and equipment have now been developed to enable PowerTrac Advance (PTA * ) wireline tractor technology to deploy rotating equipment such as milling, honing and brushing. Wells suffering from scale buildup or seal bore damage have been successfully recovered, leading to considerable cost savings compared...

... control production chemistry upstream oil & gas remediation of hydrates scale remediation milling paraffin remediation millout coiled tubing operations sulphate scale hydrate remediation inhibitor oilfield chemistry spe 23106 Abstract Barium sulphate scale formation can occur...

... upstream oil & gas wax remediation scale inhibition hydrate remediation insoluble obstruction aaron mcdonough sterling bead oilfield chemistry scale remediation scale milling david eslinger johnson wax inhibition mcdonough asphaltene inhibition completion installation and operations...

... cut in one of its wells; previous interventions in other wells connected to the same reservoir indicated a high probability of scale. The plan was to log, isolate the watered out zone and then re-perforate in order to increase oil production rate. Electric line Tractor Milling equipment was mobilised...

... represented in each simulant using three coupons with the following surfaces: (i) polished, (ii) mill-scale with corrosion products, and (iii) partly polished surface of a mill-scale coupon. The electrochemical experiments were conducted for approximately 4 months, and corrosion potential evolutions were...

... in a stratified flow regime where deposits of solids accumulate in the bottom of a pipeline. This test method is used to investigate the difference in under deposit corrosion of API X-65 carbon steel when the deposit consists of either sand or iron sulfide (FeS) with and without the presence of mill scale...

... by sanding a coupon, (ii) surface with mill-scale plus corrosion product, and (iii) partially removed mill-scale plus corrosion products. Coupons were immersed in a waste simulant for several months and OCPs were recorded. Several other electrochemical techniques were used to measure corrosion-related...

... and backfilled, and this potential is an average of the electrical potentials or voltages with respect to the soil of various exposed metal parts of the line depending on the metal used in the line, the nature of the soil, the amount of mill scale and rusted surface, etc. This potential is determined...