CN103104204A - Self-compensation target flowmeter - Google Patents
Self-compensation target flowmeter Download PDFInfo
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- CN103104204A CN103104204A CN 201110370162 CN201110370162A CN103104204A CN 103104204 A CN103104204 A CN 103104204A CN 201110370162 CN201110370162 CN 201110370162 CN 201110370162 A CN201110370162 A CN 201110370162A CN 103104204 A CN103104204 A CN 103104204A
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Abstract
The invention discloses a self-compensation target flowmeter which is mainly composed of a pipeline (2) and a swinging rod (3) with one end arranged on the interior of the pipeline (2) in a penetrating mode. A target (1) is arranged at one end, located on the interior of the pipeline (2), of the swinging rod (3). An electromagnetic control element (4) is installed at the other end of the swinging rod (3). The self-compensation target flowmeter guarantees the fact that the output electric quantity and the tested flow quantity are in linear relation, and further has good dynamic properties and high testing accuracy.
Description
Technical field
The present invention relates to a kind of auto-compensation target type meter.
Background technology
In the each task of oil exploration and oil field development, drilling well plays a very important role.In drilling process, the bottom rock rear landwaste that produces that is broken is carried on ground by circulating mud, and this process is called well-flushing.Well-flushing is to realize by circulating mud as the important step in drilling process, therefore there is the people mud to be likened to the blood of drilling engineering.
Drilling Mud has become the important component part of modern oil/gas drilling engineering.A large amount of research data show that mud has carry and suspend landwaste, stabilizing borehole and equilibrium strata pressure, Cooling and Lubricator drill bit, drilling tool and transmission hydrodynamic force etc. and is directly connected to drilling cost in drilling process both at home and abroad, even have influence on the important function of drilling well success or failure.Drilling practice also proves, the quality of mud property, and whether use, maintenance and treatment measures are appropriate, directly affect the stability of the borehole wall, and the stability of the borehole wall is related to admission, bit speed, quality and the cost of geologic information, so people often liken mud to the blood of drilling engineering.Therefore, the mud property parameter is carried out real-time monitoring and just seem very important.
Drilling fluid refers to satisfy with its several functions in the oil/gas drilling process general name of the various circulation of fluids of drilling well need of work.Drilling fluid claims again drilling mud or referred to as mud (Muds), this paper with drilling fluid referred to as mud.Mud has the effects such as carry and suspend landwaste, stabilizing borehole and equilibrium strata pressure, Cooling and Lubricator drill bit, drilling tool and transmission hydrodynamic force in drilling process.
Nowadays Drilling Mud has become the important component part of oil/gas drilling engineering.Drilling practice shows, the quality of mud property is used, the maintenance measure appropriate direct stability that affects the borehole wall whether, and the stability of the borehole wall is related to admission, bit speed, quality and the cost of geologic information, so people often liken mud to the blood of drilling engineering.
Over nearly 40 years, indoor and industry spot experimental study proves in a large number both at home and abroad, and in the ordinary course of things, the solid concentration increase can cause the increase of density, viscosity, shear force, cake thickness and the sand content of mud, the decline of fluid loss.And the variation of these performances will obviously reduce drilling speed, increases the drill bit consumption, even might increase the situations such as leakage, gas cut, bit freezing, makes drilling cost significantly rise.
Mud refers to satisfy with its several functions in the oil/gas drilling process general name of the various circulation of fluids of drilling well need of work.The circulation of mud is kept by slush pump.The high-pressure slurry of discharging from slush pump through ground high pressure pipe joint, standpipe, hose, water tap, kelly bar, drilling rod, drill collar to drill bit, from the bit nozzle ejection, with bottom-hole cleaning and cutting carring.And then upwards flow along the annular space that drill string and the borehole wall (or sleeve pipe) form, flow into mud pit by discharge pipe arriving ground, then return to upper pool after various solid phase control appliances are processed, the Recycling of the most laggard people's slush pump.The various pipe fittings of slurry flows warp, equipment have consisted of a whole set of mud circulating system.
In the each task of oil exploration and oil field development, drilling well plays a very important role.In drilling process, the bottom rock rear landwaste that produces that is broken is carried on ground by circulating mud, and this process is called well-flushing.Well-flushing is to realize by circulating mud as the important step in drilling process, therefore there is the people mud to be likened to the blood of drilling engineering.
Mud refers to satisfy with its several functions in the oil/gas drilling process general name of the various circulation of fluids of drilling well need of work.The circulation of mud is kept by slush pump.The high-pressure slurry of discharging from slush pump through ground high pressure pipe joint, standpipe, hose, water tap, kelly bar, drilling rod, drill collar to drill bit, from the bit nozzle ejection, with bottom-hole cleaning and cutting carring.And then upwards flow along the annular space that drill string and the borehole wall (or sleeve pipe) form, flow into mud pit by discharge pipe arriving ground, then return to upper pool after various solid phase control appliances are processed, the Recycling of the most laggard people's slush pump.The various pipe fittings of slurry flows warp, Drilling Mud are the important component parts of modern oil/gas drilling engineering.Mud has the effect of the several respects such as carry and suspend landwaste, stabilizing borehole and equilibrium strata pressure, Cooling and Lubricator drill bit and drilling tool, transmission hydrodynamic force in drilling process.Drilling practice proves, the quality of mud property, whether use, maintenance and processing be proper, is directly connected to rate of penetration, bit life, down-hole problem, ground installation wearing and tearing, mud expense and the whole drilling well integrated cost of drilling well, even is related to the success or failure of drilling well.Therefore, necessary the mud property parameter is carried out real-time measurement, feedback, in order in time pinpoint the problems.
Target type meter is compared with differential pressure flowmeter, and the critical Reynolds number that its discharge coefficient is tending towards constant is less, therefore is suitable for measuring the flow of the larger liquid of viscosity, for example mud viscosity.But the relation between the flow of general target type meter and test signal (power) is nonlinear, and this just brings very large inconvenience to use, and has limited the scope of application of flow meter.
Summary of the invention
The object of the invention is to overcome the shortcoming and defect of above-mentioned prior art, a kind of auto-compensation target type meter is provided, this auto-compensation target type meter also has dynamic property and higher measuring accuracy preferably except guaranteeing that between output electric weight and measured flux be linear relationship.
Purpose of the present invention is achieved through the following technical solutions: the auto-compensation target type meter, mainly running through by pipeline and an end fork that is arranged on pipe interior consists of, the end that described fork is positioned at pipe interior is equipped with target, and its other end is equipped with the Electromagnetic Control element.
Be connected with controller on described Electromagnetic Control element, the other end of described controller is connected on fork.
Also be parallel with voltage current adapter and switching network between described controller and Electromagnetic Control element.
Also be provided with position sensor between described controller and fork.
In sum, the invention has the beneficial effects as follows: except guaranteeing between output electric weight and measured flux to be linear relationship, also have dynamic property and higher measuring accuracy preferably.
Description of drawings
Fig. 1 is structural representation of the present invention.
The specific embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited only to this.
Embodiment:
As shown in Figure 1, the auto-compensation target type meter that the present invention relates to, mainly run through by pipeline 2 and an end fork 3 that is arranged on pipeline 2 inside and consist of, the end that described fork 3 is positioned at pipeline 2 inside is equipped with target 1, and its other end is equipped with Electromagnetic Control element 4.
Be connected with controller 6 on described Electromagnetic Control element 4, the other end of described controller 6 is connected on fork 3.
4 of described controller 6 and Electromagnetic Control elements also are parallel with voltage current adapter 7 and switching network 8.
Also be provided with position sensor 5 between described controller 6 and fork 3.
Operating principle of the present invention is: liquid forms thrust by in the process of pipeline 2 to the target 1 that is arranged on fork 3 one ends; Target 1 drives fork 3 and forms skew, and position sensor 5 measures this side-play amount, and passes to controller 6; Controller 6 outputs a control signal to voltage current adapter 7 and switching network 8 according to the parameter that sets in advance; Voltage current adapter 7 and switching network 8 are passed to later Electromagnetic Control element 4 with the control signal conversion, and then guarantee that by Electromagnetic Control element 4 between output electric weight and measured flux be linear relationship.
The above is only preferred embodiment of the present invention, is not the present invention is done any pro forma restriction, and every foundation technical spirit of the present invention, any simple modification, equivalent variations that above embodiment is done are within all falling into protection scope of the present invention.
Claims (4)
1. auto-compensation target type meter, it is characterized in that, mainly run through by pipeline (2) and an end and be arranged on inner fork (3) formation of pipeline (2), described fork (3) is positioned at the inner end of pipeline (2) target (1) is installed, and its other end is equipped with Electromagnetic Control element (4).
2. auto-compensation target type meter according to claim 1, is characterized in that, is connected with controller (6) on described Electromagnetic Control element (4), and the other end of described controller (6) is connected on fork (3).
3. auto-compensation target type meter according to claim 2, is characterized in that, also is parallel with voltage current adapter (7) and switching network (8) between described controller (6) and Electromagnetic Control element (4).
4. auto-compensation target type meter according to claim 2, is characterized in that, also is provided with position sensor (5) between described controller (6) and fork (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110370162 CN103104204A (en) | 2011-11-10 | 2011-11-10 | Self-compensation target flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110370162 CN103104204A (en) | 2011-11-10 | 2011-11-10 | Self-compensation target flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103104204A true CN103104204A (en) | 2013-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110370162 Pending CN103104204A (en) | 2011-11-10 | 2011-11-10 | Self-compensation target flowmeter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221092A (en) * | 2014-06-24 | 2016-01-06 | 天津海科信达石油技术有限公司 | Mud backflows sensor |
-
2011
- 2011-11-10 CN CN 201110370162 patent/CN103104204A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221092A (en) * | 2014-06-24 | 2016-01-06 | 天津海科信达石油技术有限公司 | Mud backflows sensor |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20130515 |