Conocophillips Company

Sally Ann Thomas

Charles John Lord, Iii

Wolfgang Frech

Lars T Lambertsson

Sandipan Kumar Das

Erik L Björn

William G McLelland

William G Mclelland

Methods and systems for processing production fluid include embodiments for removal of injected chemicals from the production fluid. An embodiment of a method includes receiving production fluid from a borehole in an earth formation, the production fluid including surfactants injected into the earth formation to stimulate production of hydrocarbons therefrom. The method also includes processing the production fluid to separate the production fluid into at least an oil phase and produced water, introducing a treatment fluid from a treatment fluid source into at least one of the production fluid and the produced water, and removing the surfactants from at least the produced water. The treatment fluid includes a concentration of multivalent cations, the multivalent cations configured to reduce water solubility of the surfactants.

Removal of oil recovery chemicals from production fluids

A crude oil storage tank includes a bottom wall, a peripheral wall and a top wall that collectively define a storage volume. A first nozzle is arranged at the peripheral wall. The first nozzle is configured to selectively rotate between a first position and a second position to direct a first stream of fluid into the storage volume. A second nozzle is arranged at the peripheral wall. The second nozzle is configured to selectively rotate between a first position and a second position to direct a second stream of fluid into the storage volume.

Sludge management system for crude oil storage tanks

Methods, systems and designs are provided for removing mercury from crudes. Crude oil is heated to a temperature above 100&#xb0; C. and held at that temperature for a specified period of time to convert all of the forms of mercury in the oil into the elemental mercury form. The elemental mercury is then stripped from the crude oil by e.g., flashing the hot oil and/or contacting it with a gas phase. This process transfers the elemental mercury from the oil phase into the gas phase. Elemental mercury can then be removed from the gas phase by methods such as condensation, precipitation, or absorption either alone or in combination.

Removing mercury from crude oil

Growing community of inventors

Bartlesville, OK, United States of America

Sally Ann Thomas