Stand for simulating process of inclined-directed gas-liquid flows

FIELD: oil and gas industry.

SUBSTANCE: suggested stand includes one horizontal pipe in the form of serially connected separate sections of pipes, a pump, connecting pipelines, shut-off devices, flow meters, lifting units, and contains additionally three horizontal pipes made in the form of serially connected separate steel sections of pipes, measuring devices, a gas supply unit. A bubbler is installed at the inlet to one of the pipes. It contains a flow-through blower, which inlet is connected to the gas supply unit and the outlet is connected to the bubbler, an accumulating vessel, which outlet is connected with the bubbler through a pump, a separator which inlet is connected to the outlet of said pipe, gas outlet is communicated with flow-through supercharger, and liquid outlet is communicated with the inlet of accumulating vessel. The sections of horizontal pipes are interconnected by flexible connecting elements. All pipes have different diameters and mounted on lifting units.

EFFECT: increased accuracy and reliability of the investigations conducted on the stand.

2 dwg

 



 

Same patents:

FIELD: measurement equipment.

SUBSTANCE: inventions relate to measurement equipment, namely to methods and devices for determining different parameters of liquids, namely oil products, stored or transported in tanks, and can be used in systems for determining volume and weight of liquids. A sensor of medium characteristics with a vibration sensitive element and a built-in temperature transducer is moved in test liquid on different levels of submersion, and density and viscosity of liquid is measured, thus controlling variation of vibration frequency of the sensitive element of the sensor, thus measuring liquid temperature at the same time. Level measurement is made by calculating the number of signals per certain length of movement of the sensor. By processing density, viscosity and temperature data, such liquid parameters, as levels of its delamination and levels of boundary lines of liquid/air media and oil product/produced water are determined. The device for the method's implementation includes sensor 1 consisting of vibration detector 1.1 and temperature transducer 1.2. Sensor 1 is attached to tape cable 2 wound on drum 3 that is rotated by stepper motor 4. Cable 2 at its being drawn rotates measurement wheel 5 with encoder 6. Cable 2 is provided with inductive sensor 7 of tension and sensor 8 of upper position. The other end of cable 2 is connected to electronic unit 9.

EFFECT: enlargement of functional capabilities and scope of application.

3 cl, 2 dwg

FIELD: test equipment.

SUBSTANCE: present invention relates to the field of metallurgy and mechanical engineering. The task to be solved by the declared invention is the determination of viscoelastic properties of metals using the acoustic sonde method. The stand for study of viscoelastic properties of metals consists of the variable signal setting generator, an induction mechanical oscillator the elastic element of which is designed as a thin metal beam with a shock sonde fixed on it, and also a sample for study to which the piezoelectric sound pickup is connected. The signals from the generator and the sound pickup are sent to the two-channel computer oscillograph.

EFFECT: technical result is the possibility of non-destructive diagnostics of viscoelastic properties of metals and alloys by means of measurement of amplitude of the acoustic signals occurring at impact of the sonde onto the solid body surface.

5 cl, 3 dwg

FIELD: machine building.

SUBSTANCE: invention relates to the machine building, in particular to testing of the lubricating-cooling liquids (LCL) used during metals cutting. Method of estimation of the process efficiency of the lubricating-cooling liquid (LCL) under which the actual friction coefficient with/without estimated LCL, maximum cooling rate of the temperature sensor in the tested LCL and in air (without LCL) from temperature in cutting zone to room temperature are measured for 10-20 s. Then coefficient of complex efficiency is calculated by equation: K=KLCLKw/oLCLVw/oLCLVLCL, where KLCL is friction coefficient received using tested LCL; Kw/oLCL is friction coefficient received w/o LCL use; Vw/oLCL is cooling rate in air; VLCL is cooling rate received with tested LCL.

EFFECT: significant decreasing of labour intensity and testing time of LCL efficiency at specified modes, and accounting of the lubricating and cooling action of LCL.

5 dwg, 1 tbl

FIELD: measurement equipment.

SUBSTANCE: invention relates to the field of instrument research of construction materials by means of determination of their physical properties, in particular, to research of rheological properties of fluid media (limit shear strength, viscosity, gradient of deformation speed) and analysis of materials by determination of their fluidity, and may be used to determine rheological properties in different moulding sands of special concretes, assessment of these properties and classification of mixtures according to rheological properties. The method to determine rheological properties of highly fluid moulding sands includes filling of the device with investigated mixes, performance of measurements and their registration, according to which the moulding mix is poured into a pipe installed vertically as capable of axial displacement without a gap between the lower end of the pipe and tray bottom. The the pipe is raised to the specified gap value between the lower end of the pipe and the tray bottom, at the same time the moulding mix leaks from the pipe and freely spreads on the tray bottom, they measure and record parameters required by the methodology: height of mix column that remained in the pipe; time of mix leakage from the pipe from the start to the end of leaking; size of spot of the spread moulding sand, and the instrument for realisation of the method to determine rheological properties of highly fluid moulding sands. The instrument comprises a reservoir for filling with moulding sands, in which the reservoir for filling with moulding sands is made in the form of the pipe installed vertically as capable of axial displacement, the instrument is equipped with a tray, a guide, rigidly installed on the tray, and a mechanism of pipe axial displacement. At the same time travel of the pipe axial displacement mechanism is chosen as equal to the gap between the lower end of the pipe and tray of the bottom, meeting the requirements of the method to determine rheological properties of moulding sands, at the same time it is equipped with a system of tray filling with water and organisation of water circulation.

EFFECT: simplifying methodology of tests and design of the instrument, expansion of operating capabilities of an item, increased validity of produced results, decreased costs of the instrument and tests.

4 cl, 2 dwg

FIELD: chemistry.

SUBSTANCE: method of determining a gel point by oscillatory viscometry includes placing a gelling solution into measuring vessels with different diameters, initiating the process and continuously measuring mechanical resistance of the solution in both vessels, plotting the obtained rheological curves on the same graph and determining the gel point from the graph as the region of divergence of the obtained curves.

EFFECT: higher measurement accuracy and more objective determination of a gel point by using cells of different sizes.

2 dwg

FIELD: instrumentation.

SUBSTANCE: this invention relates, in general, to testing of viscosity of well fluids, and more specifically, to viscometers with a vibrating wire. A viscometer is proposed with a vibrating wire. Certain versions of jackets of a viscometer with a vibrating wire include a pipeline, stretching via a jacket and providing for impact at the first wire by well fluid, a cavity in the jacket for placement of a magnet and laying of one or several additional wires from a pipeline to a generator of signals, the first and second electroconducting supports, mechanically connected with the jacket for retention of the first wire in tight condition in a pipeline, and a seal, mechanically connected to the jacket for prevention of access of well fluid to the magnet.

EFFECT: increased accuracy of viscosity measurement.

22 cl, 26 dwg

FIELD: medicine.

SUBSTANCE: medical needle connected to a vacuum test tube is inserted into a blood vessel for measuring blood viscosity in the process of blood sampling from the blood vessel for blood analysis. A blood sampling procedure involves fast periodic vibrations generated at the needle entry inside the vein by multiple partial blood vessel compression by means of a vibrator and a low-frequency acoustic emitting device. That provides generating a time-version oscillating blood flow through the needle and a phase shift between the fast periodic pressure vibrations and pulsation of at least one of three parameters: the blood outflow rate from the needle into the vacuum test tube, the blood level in the vacuum test tube, and gas pressure in an empty portion of the vacuum test tube. The measuring procedure is performed by means of a low-frequency acoustic sensor connected to a phase indicator or a beam oscillograph. The measured frequency-related phase shifts are used to calculate blood viscocity.

EFFECT: accurate measurement of blood viscosity combined with reduced measuring time by an objective evaluation of actual blood viscosity using no additional information describing the blood flow volume and the tube length.

6 cl, 1 dwg

FIELD: oil and gas industry.

SUBSTANCE: invention is related to the field of analysis of physical properties of liquids. A device contains a container for sampling with a scale with a piston and rod placed in it, software and hardware to measure time and temperature, a tube for liquid intake during sampling in order to determine the relative viscosity, a thermistor which can be installed at the tube during determination of microcone penetration, demulsifying ability and index of the liquid heating dynamics, a cone that can be installed instead of the piston on the rod by means of a threaded connection for determination of microcone penetration, a plug or a cover which can be installed into the container nipple instead of the tube for determination of microcone penetration and demulsifying ability, and a support for the container installation.

EFFECT: simplification and acceleration of the analysis as well as increase in its information content and reliability.

5 cl, 4 tbl, 10 dwg

FIELD: medicine.

SUBSTANCE: method for determining a blood viscosity factor with the use of capillaries involves recording reference blood position in these capillaries at the specified times determined by a formula determining a blood viscosity value (the viscosity factor) through the derived reference values. The reference blood distances covered in the capillary by the specified successive times are recorded with vein puncture. Two sets of measurements are taken with the use for each set of measurements of a various, yet known underpressure generated at the outlet end of the capillary by connecting to evacuated test tubes with the required inside pressure; the reference blood distances covered in the capillary at the successive moments of time equal for both sets of measurements are processed according to formula η=R24((pexp)1(pexp)2)ti(l2(ti))2(l2(ti))1,wherein ηis the blood viscosity factor, R is an inner capillary radius, (pexp)1is the pressure in the first evacuated test tube for the first set of measurements, (pexp)2 is the pressure in the second evacuated test tube for the second set of measurements, ti are the moments of time (the same for both sets of measurements) when the blood flows in the capillary, whereat the blood distance is measured, (l2(ti))1 is the squared blood distances covered in the capillary by the moments of time ti in the first set of measurements, (l2(ti))2 is the squared blood distances covered in the capillary by the moments of time ti in the second set of measurements.

EFFECT: higher accuracy and reduced time for measuring, as well as its simplification.

4 cl, 1 dwg

FIELD: chemistry.

SUBSTANCE: method of determining the coefficient of heterogeneity of a mixture of hard-to-separate granular materials involves determining the number of samples, the minimum allowable weight of a sample, collecting samples of the mixture and components thereof. The samples are distributed in a uniform layer on a smooth surface and photographed. Pixel-by-pixel analysis of images of miscible components is performed to obtain histograms of distribution of pixels of the image on shades of gray with respect to the total number thereof, followed by determination of the threshold shade. Concentration values of the key component in samples of the mixture are then determined as a ratio of the number of pixels corresponding thereto to the total number of pixels of the image of the sample and the coefficient of heterogeneity of the mixture is then calculated. When calculating the value of the threshold shade, coordinates of the centroids of areas of the histograms of distribution of pixels of the components of the mixture are found and the value corresponding to the abscissa of the middle of the section between the centroids of the areas of the histograms is assigned the threshold shade.

EFFECT: simple and accurate method of determining the coefficient of heterogeneity of a mixture of hard-to-separate components with minimum time consumption.

1 dwg

FIELD: measurement equipment.

SUBSTANCE: invention relates to oil and gas industry and can be used for measurement of flow rate of production of oil and gas wells. An unit for measurement of flow rate of oil and gas wells includes at least one system for measurement of flow rates of oil, water and gas, which is hydraulically connected by means of pipelines to an inlet line of the unit, which is connected to oil wells, and to the outlet of the header, which is made in the form of a piece of a pipeline with ascending and descending segments. On the descending segment there installed is a multiphase Coriolis flow meter and at least one parametric sensor. A flow homogenisation device is installed in the pipeline in front of the descending segment. A pipeline connecting the measurement system of flow rates of oil, water and gas to the inlet line of the unit, at the inlet of this system, can be also provided with at least one ascending segment and one descending segment, which are located in series. With that, the system inlet is connected to the outlet of the descending segment of the pipeline.

EFFECT: improvement of measurement accuracy of a phase flow rate in a real time mode due to homogeneity of the measured flow of a gas-liquid mixture.

13 cl, 6 dwg

FIELD: oil and gas industry.

SUBSTANCE: group of inventions is referred to versions of a control unit and a produced fluid flow meter for a multipay well. According to the first version the unit comprises a body limited from bellow by a docking device with channels for formation fluid flows and from above by a docking device with adjustable valves installed on it in the quantity equal to that of operated formations. In the body there are interconnected cups, which are coupled hermetically by their hollow butt end to the upper docking device, and cylinders installed by the opposite end in the respective channels of the lower docking device thus forming a tubular annulus and to detached longitudinal channels intended for fluid flows from the respective formations at the wellhead. In the cups there is a crossover seat with radial channels in the cup wall along both sides of the seat. Below the crossover seat from the side of the cup end there are radial channels. Above the crossover seat there is a needle valve made as a slide; at the latter there is a gasket, which facilitates the sealed movement of the needle valve in the cup from an electric drive placed in the sealed part of the cup and fixed in the docking device transferring reciprocal motion to the needle valve in regard to the crossover seat. Electric drives of the needle valves are equipped with devices measuring linear movements of the needle valve with Hall sensors. In the longitudinal channels of the cylinders there are instruments coupled functionally by a cable to a telemetry unit and/or well power supply and/or control point placed in the cup wall so that it may transmit control commands to adjustment valves and data on process parameters of the fluid in the well formations through a cable connector. In the second version of the unit in the cup below the crossover seat there is a channel axial to the crossover seat connecting the longitudinal channel to the tubular annulus and the instruments are placed in the wall of each cylinder and interconnected by a cable in the tubular annulus.

EFFECT: improved reliability for the dual operation of the multipay wells.

4 cl, 2 dwg

FIELD: oil and gas industry.

SUBSTANCE: portable metering station of the extracted well liquid includes a vertically installed cylindrical housing that is stepped and composite - upper and lower, which are fixed with a flange connection. In the upper part of the housing there installed is a separating element - hydraulic cyclone provided with a mist eliminator. A gas control valve is installed above the mist eliminator and interconnected with a gas outlet branch pipe. The latter is interconnected with a gas line with connected measuring instruments - a pressure sensor, a pressure gauge and a weight gauge. An inlet liquid branch pipe is interconnected tangentially with the hydraulic cyclone. An outlet liquid line is provided with a mass meter, a moisture meter and a sampling unit, one of which has manual control. A temperature sensor, an information collection and storage unit, which is electrically connected to the measuring instruments, as well as a drain branch pipe with shutoff valves. The gas control valve operates for closing with a pusher of a float stem, which is installed in a sleeve, with a cone-shaped cover plate mounted concentrically and with a gap inside the lower housing. In the sleeve walls on the level of the cover plate base there are side openings connecting the cavity of the hydraulic cyclone to the cavity of the lower housing. Each of the gas and liquid outlet lines in the zone of interaction with a common manifold is provided with check valves.

EFFECT: improvement of operating characteristics.

4 cl, 4 dwg

FIELD: measurement equipment.

SUBSTANCE: measurement of capacity of oil wells connected to a group meter station is carried out by a well switch simultaneously in all connected wells without one in turns and serially, further they determine results of calculation of each well capacity using the formula:

Qi=QΣ-QΣ-1,

Qi - debit of "i" well, connected to the group meter station; Q - total capacity of all wells connected to the group meter station; Q∑-i - readings of flow meter of the total capacity without one (i) well; 1nQi - measured total capacity of wells in turns without one "i" well; n - number of wells connected to the group meter station.

EFFECT: increased accuracy and quality of measurement of capacity in oil wells connected to a group meter station due to efficiency of summary and alternate measurement of each well capacity, provision of sufficient time for true measurement of each well capacity.

FIELD: measurement equipment.

SUBSTANCE: invention relates to the field of oil production and to instrumentation and can be used for measurements of oil and gas well flow rate. The device contains an input pipeline, a separator with a float, a gas pipeline with a gas meter and on-off air operated valve fitted with position locks of and the bellow chamber. The liquid pipeline is fitted with a liquid meter and the same valve. Above-bellow (minus) cavities of chambers of both valves are pneumatically connected a gas spool. To the top cavity of the separator the input channel of the switching device with three output channels is connected pneumatically. One output channel of this device is pneumatically connected to the above-bellow cavity of the valve chamber on the gas pipeline. The second output channel is connected pneumatically to the above-bellow cavity of the valve chamber on the liquid pipeline. The third output channel is connected pneumatically to the gas spool on the output pipeline.

EFFECT: design simplification, possibility of measurement of extremely small flow rates of not only liquid, but also gas.

1 dwg

FIELD: oil and gas industry.

SUBSTANCE: method for determining volume of consumed liquid at pumping from a grouting tank to a delivery line of a pump involves measurement of the number of revolutions of a drive shaft of the pump. From the moment of liquid pumping to the delivery line there additionally measured in the grouting tank is drop in its level in the range sufficient for calculation of a conversion coefficient of the number of revolutions of the drive shaft of the pump to volume of consumed liquid. The current value of volume of consumed liquid is determined depending on surface area of liquid in the tank, drop in level of liquid in the tank, conversion coefficient of the number of revolutions of the drive shaft of the pump to volume of consumed liquid, the number of revolutions of the drive shaft of the pump, which is measured from the moment of completion of measurement of liquid level drop.

EFFECT: improvement of accuracy, simplification and automation of a process for determination of volumes of drilling and grouting liquids pumped to a well.

1 dwg

FIELD: measurement equipment.

SUBSTANCE: invention relates to production of a well fluid, in particular, to the method of measurement of a multi-phase flow of a fluid using a flow meter. The method includes detection of a multi-phase flow in a flow meter by measurement of fluid pressure in a flow meter and usage of the measured pressure to calculate flow density. The total flow through the flow meter is determined on the basis of the calculated density and PVT of the fluid analysis. The corrected total mass flow is calculated using the correction methodology for sliding of liquid/gas. Flow values are also corrected with account of the flow coefficient in leakage that varies together with variations of the Reynolds number for the fluid. Gas and oil fractions may be determined by the corrected total mass flow rate and value of the gas fraction.

EFFECT: increased accuracy of measurement of a multi-phase flow of a fluid.

16 cl, 4 dwg, 1 tbl

FIELD: oil and gas industry.

SUBSTANCE: method consists in measurements of amplitude values of a geophysical parameter along the axis of a cased string of the well and depth H, on which there detected are maximum amplitude values of the measured parameter, as per which depth of the gas-saturated formation is determined. In the well, under action of difference between formation and wellhead pressures, a gas flow of known velocity V is arranged and time distribution of amplitude values of gas humidity in the same flow is measured, and depth of the gas-saturated formation in the well is determined by the following formula: H=V·t, where t - time of occurrence of maximum at time distribution of humidity amplitude values.

EFFECT: simplifying technical implementation of the method due to eliminating the need for geophysical investigations of logging measurements.

2 cl, 2 dwg

FIELD: oil and gas industry.

SUBSTANCE: out of oil well products in the form of oil-water mixture clean water is extracted by the system of siphons due to creation of hydraulic gate for oil and emulsion flow. Oil and emulsion passing through the hydraulic gate are accumulated by switching and creating hydraulic gate for clean water flow for the purpose of further identification by density gage and measurement by volumetric displacement meter. When liquid is accumulated up to certain level hydraulic gate is created for gas flow. Under action of increasing gas pressure liquid is squeezed from settlers when combined flow-rate controller is open. When liquids level drops in settlers the hydraulic gate is removed and gas flow is started through combined flow gage, combined flow-rate controller. Pressure and temperature is measured during discharge to common header. Volume-flow rate is measured for components of oil, emulsion, water and gas. Pressure of the medium is maintained within the specified interval of its values. Parameters are calculated for measurement process and flow rate of oil wells, at that ratios of liquid or gas flow rates to ascending speed of oil and emulsion bubbles in water or gas bubbles in liquid are ensured by selecting cross-section of hydraulic gate tubing. Arrangement where gas line comprises gas flow meter and gas flow regulator. Gas separator in the lower part is coupled to the common head by combined flow gage, combined flow-rate controller and density gage through a buffer tank, which is connected to a separating tank by gas pipeline and liquid pipeline. Separating tank and buffer tank interconnected by gas pipeline form direct and opposite siphon while separating tank and buffer tank interconnected by liquid pipeline form opposite siphon. The buffer tank is coupled to the common head by measuring line. The separating tank is coupled to the main gas line by gas pipeline and to gas separator through a vertical settler and pipeline forming two direct siphons and two opposite siphons. Bafflers are installed in gas separator between the zone of vertical settler and vertical pipeline. The microprocessor is coupled to gas flow meter, gas flow regulator, combined flow gage, combined flow-rate controller and density gage.

EFFECT: improved quality and efficiency of flow rate measurement for oil well products.

2 cl, 1 dwg

FIELD: oil and gas industry.

SUBSTANCE: method lies in simultaneous measurement of temperature and pressure at several depths. At that measurements are performed directly upon start-up of the well till stabilisation of temperature occurs in the well borehole within the period of time t defined as per the following formula t<VQ=πR2LQ, day, where V is volume of the borehole horizontal section within the range of pay thickness, m3; L is length of the borehole horizontal section within the range of pay thickness, m; R radius of the borehole, m; Q is well flow rate, m3/day.

EFFECT: improved accuracy in determination of flowing intervals in horizontal wells.

1 dwg

FIELD: oil and gas extractive industry.

SUBSTANCE: device has body with ports in lower and upper ends, main sensitive elements in form of turbines and packing elements, placed in pairs at body ends, side port made in body between main sensitive elements and converter, connected to surface equipment. In side pipe, mounted inside the body between main sensitive elements, additional sensitive element is placed in form of turbine and thermal sensor. Lower end of side pipe is connected to side port. Diameter of turbine of additional sensitive element is less than diameter of turbines of main sensitive elements. Converter is a control block mounted above body including sleeves locator and electronic microprocessor device.

EFFECT: higher precision.

1 dwg

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