CN105317419B

CN105317419B - A kind of oil well output monitoring device

Info

Publication number: CN105317419B
Application number: CN201410320610.XA
Authority: CN
Inventors: 张建国; 孙振华; 常峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-07-07
Filing date: 2014-07-07
Publication date: 2019-03-01
Anticipated expiration: 2034-07-07
Also published as: CN105317419A

Abstract

An import is arranged in oil well output monitoring device of the invention, box body and vibration displacement sensor including one with gas chamber, the bottom of the box body, and in one outlet of the side of box body setting, wherein the height of the import is higher than the height of the outlet；The vibration displacement sensor is included in one vibrating arm being connected with box body top of setting and the float being connected with vibrating arm lower end in the gas chamber of the box body.Have many advantages, such as that adaptable, data are accurate and reliable, measuring cell is simple, is easy to functionization.

Description

A kind of oil well output monitoring device

Technical field

The present invention relates to a kind of devices of on-line real time monitoring oil well output.

Background technique

The dynamic Liquid output of pumping unit individual well is field production management, reservoir performance analysis, the weight in well group performance analysis Basic data is wanted, it is significant, separator manual gaging is generally used in conventional method, is yielded poor results, heavy workload, therefore up to not To the requirement of production, the domestic polished rod diagram strapping used makes since polished rod load sensor installation maintenance is cumbersome recently It is difficult to ensure with middle reliability.Power graph method amount oil is big by hole condition influence factor, and Problems are more, is only applicable to performance analysis, The confidence space of liquid measure data is only 50% or so, is unable to meet production demand.Measure on team work in oil field is being promoted, main Mass flowmenter is used, is mounted on after block station or multi-purpose station separator, the occasion more simple suitable for medium can not Realize the defeated monitoring for waiting complex dielectrics fluid flow outside individual well and measuring station.Individual well production status is evaluated to the true yield of individual well Data requirements is urgent.However, oil well liquid-producing there are multiphase medium, range ability variation greatly, gas liquid ratio 0-100% it is indefinite, containing sand, Corrosivity waits by force complicated feature, requires height to flow measurement equipment and instrument, there is technologies for one-well metering both at home and abroad at present Bottleneck.

Summary of the invention

The present invention provides a kind of oil well output monitoring device to solve the above-mentioned problems of the prior art.

The technical scheme adopted by the invention is that: oil well output monitoring device, box body and vibration including one with gas chamber An import is arranged in dynamic displacement sensor, the bottom of the box body, and in one outlet of the side of box body setting, wherein described The height of import is higher than the height of the outlet；The vibration displacement sensor includes to set in the gas chamber of the box body Set the vibrating arm and the float being connected with vibrating arm lower end that one is connected with box body top.

Optionally, the float is in coniform.

Optionally, the detection device also includes and is arranged in the indoor temperature sensor and pressure sensor of gas.

Optionally, the box body is rectangle.

The present invention integrates the structural principle feature of vortex-shedding meter, spinner flowmeter and target type meter, and design is invented Suspension minor multi-parameter flow monitoring instrument.The instrument can be realized pressure, temperature, flow measuring multiple parameters, automatic amendment is viscous Degree and gases affect coefficient.

Float-type flowmeter of the invention obtains the stream of gas-liquid two-phase fluid by the displacement and Vibration Condition of measurement float Data are measured, multiphase flow rates acquisition is carried out, since float quality is stablized, along with online temperature and pressure is corrected, so measurement number It is reproducible according to reliable, it is adaptable.

Detailed description of the invention

Fig. 1 is float-type multi-parameter flow monitoring device schematic diagram.

Specific embodiment

To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.It is understood that It is that specific embodiment described herein is used only for explaining the present invention rather than limiting the invention.It further needs exist for illustrating , for ease of description, only some but not all contents related to the present invention are shown in the drawings.

Be float-type multi-parameter flow monitoring device schematic diagram with reference to Fig. 1, specifically include a box body with gas chamber 5 with And vibration displacement sensor 1, an import 8 is arranged in the bottom of the box body, and exports 7 in the side of box body setting one, In, the height of the import 8 is higher than the height of the outlet 7；The vibration displacement sensor 1 is included in positioned at the box body One vibrating arm 2 being connected with box body top of setting and the float 6 being connected with vibrating arm lower end in gas chamber, also comprising being arranged in gas Indoor temperature sensor 3 and pressure sensor 4.

Specifically, it by the fluid of 8 vertical upflow of import, encounters float 6 and generates flow resistance, which is converted into The power for pushing float 6 to move upwards, since float 6 is cone, as float moves upwards, the actual internal area of fluid becomes Greatly, flow resistance reduces, and when fluid is equal to the weight of float to the thrust of float upwards, float remains in one relatively Stable position, meanwhile, its frequency of the vortex that different medium fluid is generated when being hindered is also different, it generates float Vibration is measured vertical displacement and the vibration signal of float by sensor 1, can reflect the multimedium changes in flow rate of fluid.It is floating The design position of son is located in the gas chamber 5 above fluid, small by medium impurity effect；Actual internal area is big, should not be blocked；Float Quality stablize, measurement reproducibility is good；The detection accuracy of displacement and vibration signal is high, is conducive to big flow range and detects；Use for reference target Anti-interference, the anti-impurity performance that formula flowmeter has, in small flow, high viscosity, easily solidifying easily stifled, high/low temperature, deep-etching, strong motion There is good adaptability in the operating condition of equal flow measurements difficulty, have flow area adaptive in conjunction with metal floater flowmeter Property, to obtain big flow range measuring characteristic, Formation and characteristics are vortexed with reference to vortex-shedding meter, gas flow influence is isolated and draws Son.Floater Structure is redesigned, so that there are a closed gas chambers above float, while increasing temperature and pressure test point, Measuring multiple parameters can be carried out to medium, while pressure and temperature correction is carried out to data on flows, so that flow measurement coefficient is more Add stabilization, improves flow measurement range ability and medium adaptability

Wherein, liquid phase flow formula is Q_I=f (h, p, T),

Q_I: liquid phase flow, it is float amplitude h, the function of Fluid pressure p and fluid temperature (F.T.) T.

Gas phase flow rate formula is Q_I=g (h, f, p, T),

Q_I: gas phase flow rate, it is float amplitude h, float vibration frequency f, the function of Fluid pressure p and fluid temperature (F.T.) T.

By adopting the above technical scheme, can have following effect:

1. the displacement and vibration parameters by measurement float 6 obtain flow signal.

2. different fluid is different to the active force reaction result of float, auxiliary by detecting displacement and the vibration parameters of float With pressure and temperature parameter correction, available more accurate metric results.

3. the design of unique structure and closed air chamber, so that the adaptive faculty that it detects fluid flow state is extremely strong.

4. the mass flow of fluid is measured, since float quality is stablized, so reliable measuring data, reproducible.

5. structure is simple, high reliablity, it is easy to be realized with a low cost.With good user interface, may be implemented remotely to visit The functions such as ask.

The foregoing is merely a prefered embodiment of the invention, is not intended to limit the invention, all in the spirit and principles in the present invention Within, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.

Claims

1. a kind of oil well output monitoring device, which is characterized in that the box body and vibration displacement sensor that there is gas chamber including one, An import is arranged in the bottom of the box body, and in one outlet of the side of box body setting, wherein the height of the import is higher than The height of the outlet；The vibration displacement sensor is included in setting one and box body top phase in the gas chamber of the box body Vibrating arm even and the float that is connected with vibrating arm lower end, for the float in coniform, the monitoring device also includes to be arranged In the indoor temperature sensor and pressure sensor of gas.

2. monitoring device as described in claim 1, which is characterized in that the box body is rectangle.