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Precession vortex flow meter scale in oilfield application research

by:Sincerity     2021-01-24
Abstract: scale vortex precession flowmeter in the oil field of applied research in information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Precession vortex flowmeter is a kind of turbine flowmeter, scalable metal blades impeller area is large, the characteristics of strong and durable, the instrument itself with the centralizer, in neutral. Instrument in through the tubing in well under blade automatic contraction, enter. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a vortex precession flowmeter scale in oilfield application research article details. Precession vortex flowmeter is a kind of turbine flowmeter, scalable metal blades impeller area is large, the characteristics of strong and durable, the instrument itself with the centralizer, in neutral. Instrument in through the tubing in well under blade automatic contraction, into the casing and then automatically open, do not affect on instrument, has been tested on several oil fields in oilfield application proved that this instrument is very good solution to the high yield Wells, heavy oil Wells, the difficulty of flow test. Introduction oilfield, mainly in shaya uplift, tarim basin, xinjiang, southwest bulge YiXie grams of the ordovician structure, the ordovician reservoir of carbonate rock karst seam hole type reservoir, lithology is mainly for the micrite limestone and clay particles, time for breccia and karst role of sand shale formation, mostly gray. The ordovician limestone matrix lithology density, reservoir space form variety, size disparity, uneven distribution, thus constitute the unique characteristic of oil field oil well itself: super thick, high adhesion, high yield. These characteristics brought flow logging data of acceptance. Traditional turbine flowmeter for stripper well, dilute the oil well logging has the very good effect, because its flow totalizer. especially small turbine blade gap, leaf area is narrow, the sensor is influenced by medium big shortcoming, for ultra thick, high adhesion, high production Wells appear powerless, the newly developed vortex precession flowmeter is not affected by the influence of fluid viscosity and flow rate, well solved the problem of the oil flow logging difficult [ 1] 。 1 instrument principle and technical characteristics. 1 the working principle of precession vortex flowmeter is a kind of using scalable metal vane gas meter. Instruments through the tubing, the stents automatic contraction, drive the connecting rod, sliding sleeve impeller collapsed; Automatically open after entering casing, stents, connecting rod, sliding sleeve also automatically withdraw, spring to drive the impeller and automatically open. Measurement, and spindle rotating fluid to drive the impeller and the core at the other end of the spindle also rotate together; Through arrangement around the core of the five magnetic sensor receives the induction signal, and the speed of the impeller is calculated, according to the calibration data to calculate the velocity of the fluid. The principle block diagram is shown in figure 1. Figure 1 instrument principle block diagram 1. 2 instrument characteristics of vortex precession flowmeter has the impeller area is large, the characteristics of strong and durable, it is mainly used for medium and high production, high viscous crude oil and gas well measurement. Instrument itself with the centralizer body, good in neutral. Instrument in through the tubing in well under blade automatic contraction, into the casing and then automatically open, will not affect the instrument of the upper and lower shaft. It also used the ball bearing structure design, small resistance, flexible rotation, high measuring accuracy; Magnetic steel is sealed condition, can prevent adsorption iron filings, stronger adaptability [ 2] 。 1. 3: technical indicators diameter & Phi; 38 mm working pressure: 100 mpa working temperature: 175 & deg; C working voltage: 34 VDC output signals: 10 pulse start/circle displacement: 25 m3 / dzui big traffic: 1000 m3 / d2 field application effect analysis of vortex precession flowmeter with magnetic orientation, gamma, temperature, pressure, water cut, such as fluid density logging instrument of production profile logging construction process is as follows: according to the characteristics of the oilfield, using 10 m/min, 15 m/min, 20 m/min, the speed of 25 mm/min and measurement, a total of eight different velocity of flow can be measured curve, combined with the temperature, pressure, water cut, fluid density curve analysis, so as to calculate the stratified fluid volume and fluid properties. After the scene more than a year of practice has proved that this instrument is very good to solve the problem of difficult this well and high yield well logging, improves the accuracy of flow test data. 2. 1 captured this, the difficulty of well flow test of oilfield crude oil buried depth over 6000 m, crude oil density zui high reaches 1. 04 g/cc, kinematic viscosity zui high of 37814 mpa. s( 50° C) , serious paste regular blade turbine flow meter, turbine flow of qualified data cannot be obtained, only the tracer flowmeter method accepted production data, the flow measurement accuracy is greatly reduced, application of full hole after turbine flowmeter, captured this well, the difficulty of well flow test. TK1237 well of oil field, library raised north east to seam hole of Edinburgh to the north slope belt of a development well, oil-water mixture density value is 0. 9491 g/cc, belong to heavy oil Wells, by adopting intelligent vortex precession flowmeter test, instrument works, the turbine curve reached & other; Three of the change throughout the &; Standard, according to the test data processing is obtained after the main production layer in 6614. Below 0 m, layered TK1237 well test interpretation result table shown in table 1.
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