Patent classifications
C10G33/08
ADDITIVE MANAGEMENT SYSTEM
A system including an additive management system configured to oversee hydrate formation in a hydrocarbon extraction system, the additive management system including a flow meter configured to measure a fluid flow rate, a first sensor configured to measure at least one of a fluid property and an environmental condition, and a chemical injection device configured to inject a hydrate inhibitor into a fluid flow.
SYSTEM AND METHOD FOR REMOVAL OF WATER FROM OIL
The present invention relates to a system for removing water from oil from an oil supply, where the system comprises a housing comprising an inner opening, an oil inlet tube connecting the oil supply and an oil inlet of the housing, where the oil inlet tube comprises an inlet pump adapted to provide a flow of oil in a direction from said oil supply to said oil inlet, an oil outlet tube connecting an oil outlet of the housing and the oil supply, where the oil outlet tube comprises an outlet pump adapted to provide a flow of oil in a direction from said oil outlet to said oil supply, an air inlet tube providing a gas connection between an air supply unit and an air inlet of the housing, and an air outlet tube providing a gas connection between an air outlet of the housing and the air supply unit, where said outlet pump is adapted as to provide a flow at a higher pumping flow rate than the pumping flow rate provided by said inlet pump. The invention further relates to a method of removing water from oil from an oil supply.
Purification of oil
A system (1; 101) and a method for purification of oil, said system comprising:—at least one feed tank (3) comprising oil to be purified;—a separation aid dosing device(13);—at least one basic sedimentation tank (21a, 21b) comprising at least one inlet (23a, 23b) connected to the feed tank (3) and to the separation aid dosing device (13) for receiving oil to be purified and separation aid, said at least one basic sedimentation tank (21a, 21b) further comprising at least one sludge phase outlet (41a, 41b) provided in a bottom part (37a, 37b) of the basic sedimentation tank and at least one oil phase outlet (39a, 39b);—at least one advanced sedimentation tank (121) comprising at least one sludge phase inlet (122) connected to the at least one sludge phase outlet (41a, 41b) of the at least one basic sedimentation tank (21a, 21b), said advanced sedimentation tank (121) further comprising at least one sludge phase outlet (141; 141a, 141b) connected to a sludge tank (143) and at least one oil phase outlet (139a, 139b; 39), wherein said advanced sedimentation tank (121) further comprises at least one sensor (55; 55a, 55b, 55c) for detecting the presence of an oil phase or a sludge phase.
Purification of oil
A system (1; 101) and a method for purification of oil, said system comprising:—at least one feed tank (3) comprising oil to be purified;—a separation aid dosing device(13);—at least one basic sedimentation tank (21a, 21b) comprising at least one inlet (23a, 23b) connected to the feed tank (3) and to the separation aid dosing device (13) for receiving oil to be purified and separation aid, said at least one basic sedimentation tank (21a, 21b) further comprising at least one sludge phase outlet (41a, 41b) provided in a bottom part (37a, 37b) of the basic sedimentation tank and at least one oil phase outlet (39a, 39b);—at least one advanced sedimentation tank (121) comprising at least one sludge phase inlet (122) connected to the at least one sludge phase outlet (41a, 41b) of the at least one basic sedimentation tank (21a, 21b), said advanced sedimentation tank (121) further comprising at least one sludge phase outlet (141; 141a, 141b) connected to a sludge tank (143) and at least one oil phase outlet (139a, 139b; 39), wherein said advanced sedimentation tank (121) further comprises at least one sensor (55; 55a, 55b, 55c) for detecting the presence of an oil phase or a sludge phase.
Smart dewatering
Embodiments of the disclosure provide a method and system for removing water build-up in a hydrocarbon storage tank. An oil-water interface sensor is located in the hydrocarbon storage tank and includes a first probe and a second probe. The first probe is located at a bottom portion of the hydrocarbon storage tank. The first probe generates a first input data stream. The second probe is located above the first probe. The second probe generates a second input data stream. The first and second input data streams are processed to determine a vertical displacement of an oil-water interface, which is compared against a predetermined value. An output data stream responsive to the comparison is generated including instructions to maintain a controllable valve either in an open position or in a closed position. The output data stream is communicated to the controllable valve, fluidly connected to a drain line connected to the bottom portion of the hydrocarbon storage tank, to be in the open position or in the closed position. Water build-up is removed via the drain line as the controllable valve is maintained in the open position.
Online Analysis in a Gas Oil Separation Plant (GOSP)
A gas oil separation plant (GOSP) and method for receiving crude oil from a wellhead and removing gas, water, and salt from the crude oil, and discharging export crude oil. The GOSP includes online analyzer instruments for performing online analysis of salt concentration in multiple streams in the GOSP. Based in part on the online analysis, the salt content in the export crude oil may be determined and the flowrate for wash water supplied to the desalter vessel may be specified.
Online Analysis in a Gas Oil Separation Plant (GOSP)
A gas oil separation plant (GOSP) and method for receiving crude oil from a wellhead and removing gas, water, and salt from the crude oil, and discharging export crude oil. The GOSP includes online analyzer instruments for performing online analysis of salt concentration in multiple streams in the GOSP. Based in part on the online analysis, the salt content in the export crude oil may be determined and the flowrate for wash water supplied to the desalter vessel may be specified.
GAS-OIL SEPARATION PLANT VIRTUAL WATER CUT PREDICTOR BASED ON SUPERVISED LEARNING FRAMEWORK ON TIME SERIES DATA
The present disclosure describes system and methods for accessing data from a gas oil separation plant (GOSP) facility, wherein the data includes measurements at various locations inside the GOSP facility and measurements of water cut of the GOSP facility; selecting, based on feature engineering, a subset of features corresponding to the measurements at various locations inside the GOSP facility, wherein the subset of features are more likely to impact the water cut of the GOSP facility than unselected features; and based on the subset of features, training a predictive model capable of predicting the water cut of the GOSP facility based on the measurements of water cut of the GOSP facility, wherein the training is based on, at least in part, (i) a subset of the measurements at various locations inside the GOSP facility and (ii) a subset of the measurements of water cut of the GOSP facility.
GAS-OIL SEPARATION PLANT VIRTUAL WATER CUT PREDICTOR BASED ON SUPERVISED LEARNING FRAMEWORK ON TIME SERIES DATA
The present disclosure describes system and methods for accessing data from a gas oil separation plant (GOSP) facility, wherein the data includes measurements at various locations inside the GOSP facility and measurements of water cut of the GOSP facility; selecting, based on feature engineering, a subset of features corresponding to the measurements at various locations inside the GOSP facility, wherein the subset of features are more likely to impact the water cut of the GOSP facility than unselected features; and based on the subset of features, training a predictive model capable of predicting the water cut of the GOSP facility based on the measurements of water cut of the GOSP facility, wherein the training is based on, at least in part, (i) a subset of the measurements at various locations inside the GOSP facility and (ii) a subset of the measurements of water cut of the GOSP facility.
Emulsion layer alarm system for prevention of process upsets in electrostatic coalescers
A computer-implemented method includes receiving, by a programmable logic controller coupled to a control unit associated with a vessel containing oil and water within a Gas-Oil-Separation Plant (GOSP), a first signal representing a first capacitance measurement detected by a first capacitance probe attached to the vessel at a first elevation. Determining whether an alarm condition is met by detecting whether the first capacitance measurement is higher than a first predetermined maximum limit, or a rate of change (ROC) of the first capacitance measurement is higher than a first predetermined ROC limit, or both. If the alarm condition is met, sending an alarm signal indicating that an upcoming process upset has been detected within the vessel. Subsequent alarms at higher elevations, if available, can alarm operators if the emulsion layer thickness continues to increase and further mitigation measures are required (such as higher demulsifier dosage, skimming of emulsion layer, etc.).