Integrated gas oil separation plant systems and methods are disclosed. Systems and methods include treating a crude oil inlet feed stream with a high pressure production trap (HPPT), a low pressure production trap (LPPT), a low pressure degassing tank (LPDT), a first heat exchanger, a second heat exchanger, a LPPT recycle water stream, a fresh wash water supply stream, and a LPDT recycle water stream, where the LPDT recycle water stream is operable to supply recycle water from the LPDT to an output stream from the HPPT to form the LPPT inlet feed stream.

Integrated gas oil separation plant systems and methods are disclosed. Systems and methods include treating a crude oil inlet feed stream with a high pressure production trap (HPPT), a low pressure production trap (LPPT), a low pressure degassing tank (LPDT), a first heat exchanger, a second heat exchanger, a LPPT recycle water stream, a fresh wash water supply stream, and a LPDT recycle water stream, where the LPDT recycle water stream is operable to supply recycle water from the LPDT to an output stream from the HPPT to form the LPPT inlet feed stream.

A process for upgrading crude oil may include combining crude oil and feed water in a supercritical water unit to produce a first upgraded output, separating the first upgraded output in a first gas-water-oil separator to produce a first gas effluent, a first water effluent, and a first oil effluent, separating the first water effluent in a first water treatment unit to produce a rejected water stream and a recycle water stream, combining the first oil effluent and the rejected water stream in a nearcritical water unit to produce a second upgraded output, and recycling at least a portion of the recycle water stream for introduction into the supercritical water unit. A system for upgrading crude oil may include a supercritical water unit, a first gas-water-oil separator disposed downstream of the supercritical water unit, a first water treatment unit disposed downstream of the first gas-water-oil separator, and a nearcritical water unit.

A process for upgrading crude oil may include combining crude oil and feed water in a supercritical water unit to produce a first upgraded output, separating the first upgraded output in a first gas-water-oil separator to produce a first gas effluent, a first water effluent, and a first oil effluent, separating the first water effluent in a first water treatment unit to produce a rejected water stream and a recycle water stream, combining the first oil effluent and the rejected water stream in a nearcritical water unit to produce a second upgraded output, and recycling at least a portion of the recycle water stream for introduction into the supercritical water unit. A system for upgrading crude oil may include a supercritical water unit, a first gas-water-oil separator disposed downstream of the supercritical water unit, a first water treatment unit disposed downstream of the first gas-water-oil separator, and a nearcritical water unit.

A coalescence method and related system are disclosed herein. A multiphase dispersion feed comprising first and second liquids (i.e. where droplets of the first liquid (dispersed phase) are dispersed in the second liquid (continuous phase)) is passed through a static mechanical droplet-coalescer comprising a channel characterized by a plurality of in-series segments, each segment characterized by a segment-specific-characteristic obstacle size and having geometric features disclosed herein. In embodiments of the invention, the static mechanical droplet-coalescer promotes coalescence between droplets of first liquid to form larger droplets of first liquid. Subsequently, after the dispersion exits the coalescer, the larger droplets are easier to remove from the second liquid (continuous phase) than the smaller droplets that coalesced into the larger droplets.

A coalescence method and related system are disclosed herein. A multiphase dispersion feed comprising first and second liquids (i.e. where droplets of the first liquid (dispersed phase) are dispersed in the second liquid (continuous phase)) is passed through a static mechanical droplet-coalescer comprising a channel characterized by a plurality of in-series segments, each segment characterized by a segment-specific-characteristic obstacle size and having geometric features disclosed herein. In embodiments of the invention, the static mechanical droplet-coalescer promotes coalescence between droplets of first liquid to form larger droplets of first liquid. Subsequently, after the dispersion exits the coalescer, the larger droplets are easier to remove from the second liquid (continuous phase) than the smaller droplets that coalesced into the larger droplets.

An integrated hydrothermal process for upgrading heavy oil includes the steps of mixing a heated water stream and a heated feed in a mixer to produce a mixed fluid, introducing the mixed stream to a reactor unit to produce a reactor effluent that includes light fractions, heavy fractions, and water, cooling the reactor effluent in a cooling device to produce a cooled fluid, depressurizing the cooled fluid in a depressurizing device to produce a depressurized fluid, introducing the depressurized fluid to a flash drum configured to separate the depressurized fluid into a light fraction stream and a heavy fraction stream. The light fraction stream includes the light fractions and water and the heavy fraction stream includes the heavy fractions and water. The process further includes the step of introducing the heavy fraction stream to an aqueous reforming unit that includes a catalyst to produce an aqueous reforming outlet.

An integrated hydrothermal process for upgrading heavy oil includes the steps of mixing a heated water stream and a heated feed in a mixer to produce a mixed fluid, introducing the mixed stream to a reactor unit to produce a reactor effluent that includes light fractions, heavy fractions, and water, cooling the reactor effluent in a cooling device to produce a cooled fluid, depressurizing the cooled fluid in a depressurizing device to produce a depressurized fluid, introducing the depressurized fluid to a flash drum configured to separate the depressurized fluid into a light fraction stream and a heavy fraction stream. The light fraction stream includes the light fractions and water and the heavy fraction stream includes the heavy fractions and water. The process further includes the step of introducing the heavy fraction stream to an aqueous reforming unit that includes a catalyst to produce an aqueous reforming outlet.

Systems and methods of integrated gas oil separation are disclosed. Systems include a high pressure production trap (HPPT), a low pressure production trap (LPPT), a low pressure degassing tank (LPDT), a first knockout drum (KOD) fluidly coupled to the LPDT and operable to accept an atmospheric pressure off-gas from the LPDT, an atmospheric pressure compressor fluidly coupled to the first KOD and operable to compress the atmospheric pressure off-gas to introduce the atmospheric pressure off-gas from the LPDT into the LPPT inlet feed stream, a second KOD fluidly coupled to the LPPT and operable to accept a low pressure off-gas from the LPPT, and a low pressure compressor fluidly coupled to the second KOD and operable to compress the low pressure off-gas to introduce the low pressure off-gas from the LPPT into the crude oil inlet feed stream.

Systems and methods of integrated gas oil separation are disclosed. Systems include a high pressure production trap (HPPT), a low pressure production trap (LPPT), a low pressure degassing tank (LPDT), a first knockout drum (KOD) fluidly coupled to the LPDT and operable to accept an atmospheric pressure off-gas from the LPDT, an atmospheric pressure compressor fluidly coupled to the first KOD and operable to compress the atmospheric pressure off-gas to introduce the atmospheric pressure off-gas from the LPDT into the LPPT inlet feed stream, a second KOD fluidly coupled to the LPPT and operable to accept a low pressure off-gas from the LPPT, and a low pressure compressor fluidly coupled to the second KOD and operable to compress the low pressure off-gas to introduce the low pressure off-gas from the LPPT into the crude oil inlet feed stream.