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Robust integrity management plans are critical for ensuring the lifespan and preventing failures of manmade infrastructure, including the metal (carbon steel) infrastructure that dominates the oil and gas industry. In this sector and others, many types of corrosion can occur on metal infrastructure, including corrosion that involves the participation of microorganisms, commonly referred to as microbiologically influenced corrosion, or MIC. MIC can be difficult to diagnose as the cause of a given infrastructure failure because it is not a stand-alone mechanism – the physical and chemical properties of a system can influence the types of microorganisms that are present and active, while the metabolisms of these microorganisms can influence the surrounding chemistry and physical properties of a system.
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Canadian Oil Sands mining operations have been producing oil from sand ore from the early 1960s. Oil Sands mainly consists of high hardness quartz, silica, bitumen and water. Bitumen production processes include mining the sand, washing it with hot water, slurry transportation, tailing disposal and bitumen production. Abrasion, gouging wear, impact wear, erosion and erosion-corrosion are predominant degradation mechanisms in Oil Sand mining operations.
Inorganic scale deposition is a major issue for the oil and gas industry as it can block perforations, production tubing, valves, chokes and prevent topside heat exchangers and fluid separation equipment from functioning effectively.
Microbial contamination in the development of unconventional oil and gas formations can cause numerous problems, including formation plugging, microbial induced corrosion, and well souring, all of which can have a negative effect on well productivity and quality of oil and gas. The most common method to control microbial contamination during stimulation of unconventional oil and gas formations is through the use of biocides. Traditional oil and gas biocides such as glutaraldehyde/quaternary ammonium blends struggle to provide effective microbial control under the severe conditions encountered during stimulation of unconventional oil and gas formations.
The In-Situ internal coating is a viable alternative for pipeline rehabilitation of corrode pipe and cost effective compared to replacement with new pipelines.
Of the most severe operations in the oil and gas industry are operations under high pressure and high temperatures where pressures and temperatures exceed 1000 psi and 212°F (100°C). Such operations may contain a variety of chemical constituents such as CO2 and H2S gases, hydrocarbons, and water. To address corrosion issues, materials engineers look into either upgrading to expensive alloys or use protective coatings.
Offshore wind farms are important contributions to the growing need for the generation of renewable energy. The number of offshore wind farms is growing, and multiple projects are under planning and construction around the world. One key element for a profitable and sustainable operation of offshore wind farms is that the installations are protected with the most cost-effective corrosion protective solution for the entire lifetime of the offshore wind farm. In practice, this means that today’s projects are planned with an estimated lifetime of a minimum of 35 years without major maintenance of the corrosion protective solution. To achieve this it is instrumental that the entire lifetime cost is considered when a corrosion protective solution is selected.
The formation of mineral scale is an undesirable phenomenon which is as a result of the disturbances in thermodynamics and chemical equilibria of the water system. CaCO3 scale is one of the major flow challenges in the oil industry and the crystallization process starts from thermodynamically unstable hydrated form to anhydrous polymorphic stable forms1,2 The transformation involves a series of ordering, dehydration, and crystallization processes, each lowering the enthalpy of the system where the crystallization of the dehydrated amorphous material lowers the enthalpy the most. There are two theories regarding the polymorphic transformation of a solid structure. The first suggests the transformation occurs through a direct solid transition in which the metastable phase exhibits a rearrangement of its molecules or atoms to a more stable form3. The second is valid in the presence of a solvent which allows the dissolution and the re-nucleation and growth of the stable phase4.
HISTORICAL DOCUMENT. This technical committee report describes the major thermal spray coatings used in the oil and gas production industry. These coatings include a variety of metallic, ceramic, and cermet materials applied as relatively thin overlays on metallic substrates (components). No attempt is made to be all-inclusive in the coverage of process variants.
The incidence and proliferation of microbial population in oil and gas production facilities can have undesirable consequences on upstream, midstream and downstream production systems. Microbes thrive in the anaerobic conditions encountered in these systems and are supported by nutrients and metabolites found in produced water. Although the majority of process and water injection systems are susceptible to microbial fouling, the development of microbial activity is exacerbated by specific conditions such as stagnant fluids or the presence of deposits.1 Threats of microbiologically influenced corrosion (MIC) and other challenges associated with microorganisms have become valid as more cases are reported. While MIC, biofouling (BF), and reservoir souring are three of the most common problems associated with microbes, many other production issues can be attributable to microbial activity including: employee infections, filter plugging, loss of injectivity, and metal sulfide deposits.2
This standard specifies metallic material requirements for the construction of sucker-rod pumps for service in corrosive oilfield environments. American Petroleum Institute (API) Spec 11AX provides dimension requirements that ensure the interchangeability of component parts. However, that document does not provide material specifications or guidelines for the proper application of various API pumps. API RP 11AR lists the general advantages and disadvantages of the various pump types and lists the acceptable materials for barrels and plungers; API RP 11BR and NACE SP0195 supplement API Spec 11AX by providing corrosion control methods using chemical treatment. This standard is intended for end users (e.g., production engineers) and equipment manufacturers to supplement the use of the aforementioned API and NACE publications.
Fiberglass-reinforced plastic (FRP) linings are used worldwide to prevent the corrosion and deterioration of storage tank bottoms in petroleum, petrochemical, and other services. Experience has shown that the useful life of an FRP lining may exceed 25 years. API Standard 653 permits a minimum remaining thickness of the tank bottom plate to be 1.25 mm (0.050 in) when lined with FRP compared to a thickness of 2.5 mm (0.10 in) if unlined or lined with a nonreinforced coating system and not equipped with a tank bottom leak detection system.