Saudi Arabian Oil Company

Naim Akmal

Sebastien Andre Duval

Rashed Mohammad Aleisa

Milind M Vaidya

Saleh Sharidi

Mohammed A Al-Moniee

Taher Ali Atef Alamri

Said Shahrani

Peter Frank Sanders

Jean-Pierre R Ballaguet

Anwar Hasan Al-Khawajah

Sebastien A Duval

Saeed Hasan Al-Shahrani

Fahad N Al-Abeedi

Hossam Qusty

Anwar H Al-Khawajah

A first aqueous liquid phase sample is drawn from a first one of a plurality of separation vessels in response to determining that a first separation operation in the first separation vessel has completed. First aqueous liquid phase sample data is obtained by analyzing the first aqueous liquid phase sample with at least one sensor. A sample of a second aqueous liquid phase is drawn from a second one of the plurality of separation vessels in response to determining that a second separation operation in the second separation vessel has completed. Second aqueous liquid phase sample data is obtained by analyzing the second aqueous liquid phase sample with the at least one sensor. The second aqueous liquid phase sample data is transmitted to the external multiphase flow meter. The first separation operation in the first separation vessel and the second separation operation in the second separation vessel are concurrent.

Method and system for separating and analyzing multiphase immiscible fluid mixtures

Methods and devices for obtaining approximate property data from the aqueous liquid phase of a multiphase fluid produced from a well. The method includes introducing a discrete sample of the multiphase fluid to a separation vessel; mixing a demulsifier with the discrete sample of the multiphase fluid; allowing the multiphase fluid to separate into separate liquid phases; drawing a measured sample of the aqueous liquid phase from the separation vessel, and diluting it with a measured amount of fresh water; analyzing the diluted aqueous liquid phase sample in a water analysis unit to measure a property of the diluted aqueous liquid phase sample and obtain diluted aqueous liquid phase sample data; and calculating the approximate aqueous liquid phase property data using the diluted aqueous liquid phase sample data and accounting for the amount of fresh water used to dilute the measured sample of the aqueous liquid phase.

Method and device for separating and measuring multiphase immiscible fluid mixtures

Methods and devices for obtaining approximate property data from the aqueous liquid phase of a multiphase fluid produced from a well. The device includes a separation vessel; a demulsifier source; a fresh water source configured to dilute an aqueous liquid phase sample; a water analysis unit configured to receive and analyze the diluted aqueous liquid phase sample, the water analysis unit comprising an analytical cell and at least one probe, the at least one probe having a membrane-coated sensor tip wherein the membrane-coated sensor tip having a membrane coating that comprises a polar material, the at least one probe being configured to measure a property of the diluted aqueous liquid phase sample to obtain diluted aqueous liquid phase sample data; a processing unit configured to calculate approximate aqueous liquid phase data accounting for the measured amount of fresh water used to dilute the measured sample of the aqueous liquid phase.

Method and device for separating and measuring multiphase immiscible fluid mixtures using an improved analytical cell

A system for separating and analyzing a discrete sample of multiphase fluid includes a separation vessel having a first inner chamber containing a discrete sample of multiphase fluid, and an analytical cell in fluid communication with the separation vessel. The analytical cell has a second inner chamber containing a diluted aqueous liquid phase sample for analysis. The system further includes probes disposed in the second inner chamber, each probe having a sensing area at a distal end, and being oriented in the second inner chamber such that the sensing area is immersed in the diluted aqueous liquid phase sample contained in the second inner chamber. The plurality of probes include a first probe whose sensing area surface is coated with a first ion-exchange membrane; and a second probe whose sensing area surface is coated with a second ion-exchange membrane, the second ion-exchange membrane being different from the first ion-exchange membrane.

Water analysis unit of a system for separating and analyzing a multiphase immiscible fluid mixture and corresponding method

An analytical system and method for periodically monitoring an injection water distribution pipeline for the presence and concentration of formaldehyde or other aldehyde-functional biocide includes pumps, one of which provides a predetermined volume of injection water drawn from the pipeline at a sampling point and another of which provides a predetermined volume of a reagent, preferably a buffered solution of dimedone, from a reagent storage vessel, wherein the injection water and reagent are mixed and then heated in a chamber to a predetermined temperature to promote formation of any reaction products. The heated reaction mixture is passed to a detection cell and exposed to light of predetermined wavelength which, in accordance with the Hantzsch reaction, molecules having an aldehyde functional group that reacted with dimedone produce a fluorescence-emitting reaction product, the intensity of which is measured and compared to data previously obtained from standard aldehyde-containing solutions.

Sensor for monitoring for the presence and measurement of aqueous aldehyde biocides

A method for determining a salt concentration of a hydrocarbon fluid using a conductivity sensor and a hydrocarbon testing solution includes forming the hydrocarbon testing solution. The electropolymerizable monomer is operable to form a resultant associated polymer at a peak potential of the electropolymerizable polymer. The method includes introducing the hydrocarbon testing solution into the conductivity sensor. The method includes inducing a range of potential across the hydrocarbon testing solution such that at least a portion of the electropolymerizable monomer polymerizes. The range of induced potential includes the peak potential of the electropolymerizable polymer. The method includes detecting a range of electrical current associated with the range of potential induced. The method also includes the step of determining the salt concentration of the hydrocarbon fluid using the range of potential induced and the range of electrical current detected.

Apparatus, method and system for detecting salt in a hydrocarbon fluid

An analytical system and method for periodically monitoring an injection water distribution pipeline for the presence and concentration of formaldehyde or other aldehyde-functional biocide includes pumps, one of which provides a predetermined volume of injection water drawn from the pipeline at a sampling point and the other a predetermined volume of a reagent, preferably a buffered solution of dimedone, from a reagent storage vessel which are mixed and then heated in a chamber to a predetermined temperature to promote formation of any reaction products. The heated reaction mixture is passed to a detection cell and exposed to light of predetermined wavelength which, in accordance with the Hantzsch reaction, molecules having an aldehyde functional group that reacted with dimedone produce a fluorescence-emitting reaction product, the intensity of which is measured and compared to data previously obtained from standard aldehyde-containing solutions.

A gas chromatographic method for analyzing natural gas and a natural gas upgrading system using the gas chromatographic method for analyzing natural gas. The method includes transporting the natural gas through a chiller, transporting the natural gas from the chiller to at least two gas upgrading membranes, and operating a gas chromatographic system having at least one upstream gas chromatograph and at least two downstream gas chromatographs. The at least one upstream gas chromatograph, the first downstream gas chromatograph, and the second downstream gas chromatograph all operate simultaneously and utilize the same heating oven to heat samples of natural gas.

Simulataneous gas chromatograph analysis of a multi-stream natural gas upgrade generated through a multi-membrane process

An electrochemical polymerization based salt content analyzer configured to determine salt composition in a direct, fast, and serial manner. The salt content analyzer includes three electrodes: a working electrode, a counter electrode and a reference electrode. In operation, the current passing through the electrodes as a sweeping voltage is applied may be analyzed to determine the salt content of the analyte. The working electrode includes an access control mechanism to only expose a fraction of the working length of the working electrode to the outside environment at any given time. The access control mechanism is advanced between tests to expose a fresh portion of the working electrode. Thus, testing may be performed in a serial manner.

Analyzer for monitoring salt content in high resistivity fluids

An electrochemical polymerization based salt content analyzer configured to determine salt composition in a direct, fast, and serial manner. The salt content analyzer includes three electrodes: a working electrode, a counter electrode and a reference electrode. In operation, the current passing through the electrodes as a sweeping voltage is applied may be analyzed to determine the salt content of the analyte. When a voltage is applied, an electro-polymerizable monomer forms a thin film on the working electrode. The working electrode includes an access control mechanism to only expose a fraction of the working length of the working electrode to the outside environment at any given time. The access control mechanism is advanced between tests to expose a fresh portion of the working electrode and conceal the portion with a thin film of electro-polymerized monomer. Thus, testing may be performed in a serial manner.

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Dhahran, Saudi Arabia

Naim Akmal