摘要:
A system and method for sampling fluid from a production wellsite are provided. The system includes an interface operatively connectable to the port and a separation circuit operatively connectable to the interface for establishing fluid communication therebetween. The separation circuit includes a pumping unit and at least one sample chamber. The pumping unit includes pumping chambers having a cylinder with a piston therein defining a fluid cavity and a buffer cavity. The fluid cavities define a separation chamber for receiving the fluid and allowing separation of the fluid therein into phases. The buffer cavities have a buffer fluid selectively movable therebetween whereby the fluid flows through the separation circuit at a controlled rate. The sample chamber is for collecting at least one sample of the phases of the fluid.
摘要:
A detector (1) is used distinguishing a phase from a multiphase fluid mixture. The detector comprises: an optical probe (2) for optically distinguishing one of the phases from the multiphase fluid mixture, the optical probe having a tip (20) in contact with the multiphase fluid mixture, and a detector cell (3) arranged to be coupled to a multiphase fluid mixture flowing line (L) and to the optical probe (2). The detector cell (1) further comprises: an internal flowing line (4) arranged so that the phases of the multiphase fluid mixture flowing in the internal flowing line are driven-on by capillarity effect, and a bore (5) coupled to the internal flowing line for positioning the optical probe in the detector cell so that the multiphase fluid mixture flows substantially around the tip (20) of the optical probe.
摘要:
The invention relates to a method and to apparatus for thermodynamic analysis of a mixture of fluids, in which the volume of a sample of a given quantity of said mixture is caused to vary step by step and in monotonic manner, and the pressure of the sample is read at each step, the sample being stirred at each step so as to hasten the mixture reaching thermodynamic equilibrium. According to the invention, the sample is stirred by applying ultrasound to said sample by means of transducer (20). The sample can be contained in a bag (19) of flexible material immersed together with the transducer in a control fluid inside a rigid container (10). The invention can be used to determine the bubble point of a mixture of hydrocarbons.
摘要:
A micro-valve (10) adapted for integration with a micro-fluidic device such as a micro-injector of a chromatograph, the micro-valve having a first substrate (12), a second substrate (14) having microconduits (36,38) and a seating surface (30), and an actuation membrane (16) positioned between the first substrate (12) and the second substrate (14) for opening or closing a fluid path (48) of the micro-valve (10) under a force applied by a mechanism such as a pneumatic or piezoelectric device, wherein said actuation membrane (16) is constructed from a poly(aryl ether ketone).
摘要:
A method, system, apparatus and computer program product for determining values of flow rates of components of a liquid hold up of a gaseous and liquid (water and oil) multiphase flow in an oil well. Including measuring total quantities of flow (Qtot), gas (Qgas) and liquid phase (Qliq) with a multiphase flow meter. Disposing an inlet of a core sampler inside a main pipe of the oil well at a place where a concentration of the liquid phase is greater than an average concentration of the liquid phase in the main pipe, to obtain a derived sample having a greater concentration of oil and water than the average concentration. Measuring quantities of water (Qwater) and oil (Qoil) of the derived sample. And calculating from Qwater, Qoil and Qliq, quantities of water and oil in the flow.
摘要:
This disclosure relates in general to systems and methods for spot checking flow properties of a multiphase mixture containing one or more hydrocarbons flowing through a pipeline or the like. More specifically, but not by way of limitation, embodiments of the present invention provide systems and methods for creating slug-type flows of isokinetically obtained samples of the multiphase mixture flow. By spot checking the slug-type flow of an isokinetically obtained sample of the multiphase flow, embodiments of the present invention may provide for determining flow properties of gas, oil/condensate and/or water components of the multiphase flow. In certain aspects of the present invention, an active sampling device may be used to enrich one of the phases of the slug-type flow of the sampled multiphase mixture and/or take a representative sample of one of the phases of the slug-type flow of the sampled multiphase mixture.
摘要:
A miniaturized gas analyzer formed onto a micro-chip and a method of separating components from a composite gas using the miniaturized gas analyzer are disclosed. The gas analyzer includes an injector block and two column blocks arranged in series along an analytical path. The injector block receives the composite gas and a carrier gas to create a gas sample. The gas sample is then injected into the column blocks to separate the components of the composite gas. Further, a valve used within the miniaturized gas analyzer is disclosed, in which the valve is formed onto the micro-chip and includes a flexible membrane and a rigid substrate.
摘要:
A method, system, apparatus and computer program product for determining values of flow rates of components of a liquid hold up of a gaseous and liquid (water and oil) multiphase flow in an oil well. Including measuring total quantities of flow (Qtot), gas (Qgas) and liquid phase (Qliq) with a multiphase flow meter. Disposing an inlet of a core sampler inside a main pipe of the oil well at a place where a concentration of the liquid phase is greater than an average concentration of the liquid phase in the main pipe, to obtain a derived sample having a greater concentration of oil and water than the average concentration. Measuring quantities of water (Qwater) and oil (Qoil) of the derived sample. And calculating from Qwater, Qoil and Qliq, quantities of water and oil in the flow.
摘要:
This disclosure relates in general to systems and methods for spot checking flow properties of a multiphase mixture containing one or more hydrocarbons flowing through a pipeline or the like. More specifically, but not by way of limitation, embodiments of the present invention provide systems and methods for creating slug-type flows of isokinetically obtained samples of the multiphase mixture flow. By spot checking the slug-type flow of an isokinetically obtained sample of the multiphase flow, embodiments of the present invention may provide for determining flow properties of gas, oil/condensate and/or water components of the multiphase flow. In certain aspects of the present invention, an active sampling device may be used to enrich one of the phases of the slug-type flow of the sampled multiphase mixture and/or take a representative sample of one of the phases of the slug-type flow of the sampled multiphase mixture.
摘要:
A system and method for sampling fluid from a production wellsite are provided. The system includes an interface operatively connectable to the port and a separation circuit operatively connectable to the interface for establishing fluid communication therebetween. The separation circuit includes a pumping unit and at least one sample chamber. The pumping unit includes pumping chambers having a cylinder with a piston therein defining a fluid cavity and a buffer cavity. The fluid cavities define a separation chamber for receiving the fluid and allowing separation of the fluid therein into phases. The buffer cavities have a buffer fluid selectively movable therebetween whereby the fluid flows through the separation circuit at a controlled rate. The sample chamber is for collecting at least one sample of the phases of the fluid.