Abstract: The present disclosure describes solid compositions comprising a paraffin inhibitor and a corrosion inhibitor. The paraffin inhibitors include polymers having various repeat units containing one or more ester moieties. The corrosion inhibitors can be imidazoline compounds, quaternary ammonium compounds, or a combination thereof. These solid compositions can be used to treat subterranean hydrocarbon-containing reservoir and can inhibit or reduce paraffin deposition in the reservoir and/or inhibit or reduce corrosion in a piece of equipment in contact with the reservoir.

Abstract: The present disclosure describes solid compositions comprising a paraffin inhibitor and a corrosion inhibitor. The paraffin inhibitors include polymers having various repeat units containing one or more ester moieties. The corrosion inhibitors can be imidazoline compounds, quaternary ammonium compounds, or a combination thereof. These solid compositions can be used to treat subterranean hydrocarbon-containing reservoir and can inhibit or reduce paraffin deposition in the reservoir and/or inhibit or reduce corrosion in a piece of equipment in contact with the reservoir.

Abstract: A deposit-inhibiting composition has been developed that provides an advantageous reduction in the deposits of solids in the near wellbore region, and in equipment and lines used for crude oil production and processing. The deposit-inhibiting compositions contain a surface-active component comprising a phosphate ester component, a sulfurized olefin component, or a combination thereof; a polyalkylene ester; and an imidazoline compound. The deposit-inhibiting compositions are particularly useful as flow agents for delivery to a subsea wellhead via an umbilical line.

Abstract: A system for evaluating wax deposition includes a temperature controlled environment, a container for holding a fluid, the container being positioned in the temperature controlled environment, a cold body extending into the container, a cooling system connected to the cold body and configured to circulate a coolant through the cold body to cool the cold body, and an agitation system configured to produce relative movement between the cold body and the fluid in the container by moving the container and cold body.

Abstract: Systems, methods and apparatus for injecting a solid chemical for inhibiting, decreasing or preventing precipitation and/or deposition of foulants and/or contaminants in oilfield tubulars. The use of solid chemicals or highly viscous fluids providing ease of shipment, greater economy in storage, shipment and delivery and increased ease of use.

Abstract: Systems, methods and apparatus for injecting a diluted solid chemical, a diluted highly viscous fluid, or a diluted fluidified solid for inhibiting, decreasing or preventing precipitation and/or deposition of foulants and/or contaminants in oilfield tubulars. The use of solid chemicals or highly viscous fluids providing ease of shipment, greater economy in storage, shipment and delivery and increased ease of use.

Abstract: A method for detecting and controlling the amount of cationic species in a water stream in accordance with embodiments of the present disclosure is carried out by adding a solution containing a pre-determined quantity of a fluorescent tracer to the sample of water stream to obtain a solution comprising a complex. The fluorescence emission spectra of the solution is measured for detecting the presence or absence of the cationic species based on the attenuation and shift of the emission peak in the range of 640 nm to 655 nm.

Abstract: Systems, methods and apparatus for injecting a solid chemical for inhibiting, decreasing or preventing precipitation and/or deposition of foulants and/or contaminants in oilfield tubulars. The use of solid chemicals or highly viscous fluids providing ease of shipment, greater economy in storage, shipment and delivery and increased ease of use.

Abstract: Systems, methods and apparatus for injecting a diluted solid chemical, a diluted highly viscous fluid, or a diluted fluidified solid for inhibiting, decreasing or preventing precipitation and/or deposition of foulants and/or contaminants in oilfield tubulars. The use of solid chemicals or highly viscous fluids providing ease of shipment, greater economy in storage, shipment and delivery and increased ease of use.

Abstract: A system for evaluating wax deposition is provided, the system including a temperature controlled environment, a container for holding a fluid, the container being positioned in the temperature controlled environment, a cold body extending into the container, a cooling system connected to the cold body and configured to circulate a coolant through the cold body to cool the cold body, and an agitation system configured to produce relative movement between the cold body and the fluid in the container by moving the container and cold body.

Abstract: A method for detecting and controlling the amount of cationic species in a water stream in accordance with embodiments of the present disclosure is carried out by adding a solution containing a pre-determined quantity of a fluorescent tracer to the sample of water stream to obtain a solution comprising a complex. The fluorescence emission spectra of the solution is measured for detecting the presence or absence of the cationic species based on the attenuation and shift of the emission peak in the range of 640 nm to 655 nm.