... properties was developed successfully. It was applied in a waxy crude oil from West Africa with high pour point and a wax content of about 24%. Crucial for the project success was a close collaboration among all involved stakeholders from operator, service company and chemical supplier. In the initial lab...

... required to mitigate crude oil composition issues. For wax prevention, usually pour point depressants (PPD) or wax inhibitors are applied. A new approach makes use of special hydrophobe modification in typical polymer systems, which significantly broadens their applicability. Commonly known PPD polymer...

... of hydrates spe 115612 pour point pipeline production pipeline emulsion viscosity corrosion water injection Production Chemistry scale inhibition insulation restart pressure flow assurance challenge requirement deposition rate hydrate inhibition Upstream Oil & Gas Cliff Head flow...

... & Gas flow assurance drilling fluids and materials drilling fluid selection and formulation drilling fluid formulation system pressure storage modulus waxy crude oil spe 115672 WAT deposition pour point crude oil ronningsen crystallization Gel Break gelation drilling fluid chemistry...

... to increase dramatically with a decrease in temperature and shear rate, particularly at temperatures near and below the pour point. The magnitude of viscosity is also dependent on the thermal and shear histories. The main factors affecting apparent viscosity are: Shear rate and history Cooling rate...

... on the rheological behavior of Indian crude oils is sparse. Hence, rheological characterization of crude oils from eight major producing fields was conducted using two commercial pour point depressants (PPD) obtained from Thermax. Crude samples were obtained from the eastern (Oil-A, Rudrasagar) and western (Gandhar...

.... The crude has a high pour point (PP, 91 °F) and a high wax appearance temperature (WAT, 105°F). A solution is provided that allows the crude to stay above WAT. The non-jacketed pipe option is not thermally efficient; the pipe-in-pipe option can keep the crude oil warm during normal flow; but high storage...

... remediation modeling deposition spe 90244 wax remediation asphaltene inhibition production chemistry hydrate inhibition sensor hydrate remediation composition scenario remediation of hydrates laboratory scale remediation fluid property data wax inhibition pour point flow assurance paraffin...

... Abstract Gathering of Oil-water-gas mixtures in oil fields is usually performed on condition that the gathering temperature is above the pour point of the crude oil or above the paraffin precipitation temperature. Therefore, all the mixtures that are gathered are in a fluid state (liquid...

... variability in effectiveness between the two types could be observed. ASTM D-97 pour point, cold finger deposition, cloud points, viscosity measurements, cooling curves, and crystal energy profiles were run on several waxy crude oils and differences in performance were noted. 4 All the tests showed equal...

... Abstract Transportation and production of waxy crude oils poses a variety of challenges including wax deposition, increased viscosity and pressure drop at temperatures below the cloud point, and high re-start pressure for gelled oil in the pipeline at temperatures below the pour point...

... spe 56811 ch startup modifier winterized paraffin crystal modifier paraffin crystal modifier effectiveness crude oil pour point deposit flow line cost savings winter month modifier product production chemistry society of petroleum engineers crystal modifier modifier chemical...

... deposited wax. Studies were also made to identify chemicals which can disperse the deposited wax. The field studies conclude that the higher dose of flow improver improves the rheological parameters as well as lower the pour point without any appreciable picking up characteristics from the already deposited...

... Abstract Highly paraffinic crudes were characterized by means of physico-chemical analysis (pour point, cloud point and API gravity) and hydrocarbon analysis (wax content, paraffin class-type separation, gel permeation chromatography and high temperature simulated distillation). Although all...

... ABSTRACT The present paper deals with the studies of crude oil composition, physicochemical characterisation of pour point depressants (PPD's) and waxes to know the specific & selective performance of PPD on crude for designing wax crystal modifier according to requirement. The study...

... ABSTRACT Selection of crystal modifier chemicals to reduce the pour point of paraffinic crude oils and to provide paraffin deposition inhibition has, in the past, been accomplished by laboratory physical testing. This paper presents a method for selection of these chemicals based on a technique...

... ABSTRACT The Petroleum Corporation of New Zealand Limited discovered New Zealand's first major oil field in 1980. Production is currently 1590 m 3 /d (10,000 bpd), which represents about 14% of the country's requirements. The crude has a high pour point (32°C) and a high wax level (35...

... production control oilfield chemistry spe 10145 pipeline crude viscosity waxy crude pour point procedure drilling fluid chemistry production chemistry drilling fluid property crude oil united states government santa fe spring production monitoring reservoir surveillance indonesia government...

... Upstream Oil & Gas asset and portfolio management producedga productionwa steam generator spe 4069 separator Salt Lake City altamontarea steam coil pour point Uintahbasin Utah wasatch oil truck resultingin BOPD operation trace line Uintah Basin producingrate SOCIETY...