CN2746371Y - Multi-phase flow sensor with test floater - Google Patents
Multi-phase flow sensor with test floater Download PDFInfo
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- CN2746371Y CN2746371Y CN 200420031551 CN200420031551U CN2746371Y CN 2746371 Y CN2746371 Y CN 2746371Y CN 200420031551 CN200420031551 CN 200420031551 CN 200420031551 U CN200420031551 U CN 200420031551U CN 2746371 Y CN2746371 Y CN 2746371Y
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Abstract
The utility model relates to a polyphase flow test float flow sensor for testing oil well flow, which is composed of an outer cylinder 1 of the sensor, a coil former 2, sealing rings 3, 7, a testing coil 4, a spring 5, a soft magnetic material 6, a float 8, a righting pole fixing frame 9, a righting pole 10, a conducting wire 11 and a plug 12. The flow sensor is not provided with rotational parts in the flow-testing process. The displacement test of the float adopts the non-contact test. The utility model has the advantages of high flow testing precision and large testing range, can adapt bad well condition of thick oil and height oil wells, sand wells, etc., and can be extensively used.
Description
Technical field:
The utility model relates to a kind of particularly instrument of viscous crude, high-solidifiability oil well, sand output well flow rate test of oil well that is used for, and belongs to the oil well logging instrument class.
Background technology:
At present, the method that the scene is used to survey the oil well liquid measure mainly contains turbine meter and tracer method, they in actual well logging process all in various degree be subjected to influence aspect in-hole fluid and the hole condition, make instrument occur that adaptability is bad, resolution low and shortcoming such as isotopic contamination.Because the turbo flow meter self structure can't effectively be measured it to viscous crude, high-solidifiability oil well, sand output well.Existing float flow sensor is subjected to the influence of in-hole fluid medium bigger, and float fluctuates acutely when having polyphasic flow, and measuring accuracy obviously descends, and can not satisfy the production needs.
Summary of the invention:
The purpose of this utility model is to provide a kind of flow rate test precision the high polyphasic flow test float flow sensor that also can adapt to abominable hole condition such as viscous crude, high-solidifiability oil well, sand output well.
The utility model is to realize like this.This kind float flow sensor is made up of sensor urceolus, coil former, test coil, spring, soft magnetic material, float, righting rod fixed mount, righting rod, lead, plug and O-ring seal.Be provided with coil former in the sensor urceolus, its middle part is wound with test coil, is respectively equipped with O-ring seal in the seal groove of upper and lower part; The center is provided with righting rod in the urceolus, and the bottom is provided with the righting rod fixed mount, and righting rod is set with spring and float outward, and buoy upper is set with soft magnetic material; Be provided with lead in the righting rod cavity, its lower end is connected to the plug that is used for connecting the bottom instrument.The principle of work of this sensor is as follows: in test process, the change in displacement of float is determined by the displacement of test soft magnetic material, definite employing electric transducer principle of soft magnetic material displacement, when soft magnetic material during at the test coil internal motion, the inductance of coil changes, so can determine the displacement situation of float by the variation inductance amount.In test process, provide alternating current by oscillating circuit to coil, the induced voltage that coil produces is delivered to signal processing circuit after exchanging amplification.Because spring is equipped with in this sensor floating device top, when float when top offset increases, the elastic force of spring also increases, thereby under the situation of identical float displacement, has increased the flow rate test scope.Sensor has adopted spring and conical buoy minor structure, makes sensor float in the polyphasic flow test can effectively solve the flow of heterogeneous fluid by the mean value of test curve because the fluctuation that slippage velocity causes obviously reduces.In addition, can overcome sand production on this sensor construction effectively, its scope of application is increased the influence that float causes.
The utility model does not have rotatable parts in the flow rate test process, the displacement measurement of float adopts non-cpntact measurement, flow rate test precision height, and test specification is big, and can adapt to abominable hole condition such as viscous crude, high-solidifiability oil well, sand output well, is suitable for extensive employing.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.Fig. 2 is the metering circuit fundamental diagram.
Embodiment:
The utility model is provided by following examples, is illustrated below in conjunction with accompanying drawing.
As shown in the figure, the utility model is made up of sensor urceolus 1, coil former 2, O-ring seal 3,7 test coils 4, spring 5, soft magnetic material 6, float 8, righting rod fixed mount 9, righting rod 10, lead 11, plug 12, its structure, assembled relation are as follows: be provided with coil former 2 in the sensor urceolus 1, its middle part is wound with test coil 4, is respectively equipped with O-ring seal 3,7 in the seal groove of upper and lower part; The center is provided with righting rod 10 in the urceolus 1, and the bottom is provided with righting rod fixed mount 9, is set with spring 5 and float 8 outside the righting rod 10, and float 8 tops are set with soft magnetic material 6; Be provided with lead 11 in righting rod 10 cavitys, its lower end is connected to plug 12.Wherein, sensor urceolus 1 is the pipe that a upper and lower end is respectively equipped with internal thread, and its middle part is provided with liquid outlet.Coil former 2 is " П " shape, makes of titanium steel.Float 8 can adopt slab construction, and the surface has through hole, can adopt different materials to be made into difformity according to the needs of measuring, and its lower end is tapered.Righting rod 10 is the hollow thin steel pipe.The metering circuit (see figure 2) is made of test coil and oscillating circuit, stabilized voltage supply, and oscillating circuit produces sinusoidal ac signal, provides alternating current to primary winding; The induced voltage that secondary coil produces is delivered to signal processing circuit with the proportional variation of the change in displacement of float after exchanging amplification; Induced voltage after signal processing circuit will be amplified changes frequency signal into delivers to ground testing system.
Claims (1)
1, a kind of polyphasic flow test float flow sensor, form by sensor urceolus (1), coil former (2), O-ring seal (3), (7) test coil (4), spring (5), soft magnetic material (6), float (8), righting rod fixed mount (9), righting rod (10), lead (11), plug (12), it is characterized in that: be provided with coil former (2) in the sensor urceolus (1), its middle part is wound with test coil (4), is respectively equipped with O-ring seal (3), (7) in the seal groove of upper and lower part; The interior center of urceolus (1) is provided with righting rod (10), and the bottom is provided with righting rod fixed mount (9), and righting rod (10) is outer to be set with spring (5) and float (8), and float (8) top is set with soft magnetic material (6); Be provided with lead (11) in righting rod (10) cavity, its lower end is connected to plug (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420031551 CN2746371Y (en) | 2004-05-15 | 2004-05-15 | Multi-phase flow sensor with test floater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420031551 CN2746371Y (en) | 2004-05-15 | 2004-05-15 | Multi-phase flow sensor with test floater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2746371Y true CN2746371Y (en) | 2005-12-14 |
Family
ID=35582950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420031551 Expired - Fee Related CN2746371Y (en) | 2004-05-15 | 2004-05-15 | Multi-phase flow sensor with test floater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2746371Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134203A (en) * | 2015-09-08 | 2015-12-09 | 大庆宏测技术服务有限公司 | Multi-phase flow sampling logging instrument for withdrawal well |
| CN107101686A (en) * | 2017-06-30 | 2017-08-29 | 荆州市明德科技有限公司 | Thermal production well steam mass flow measurement target-type flow sensor and target type meter |
| CN108168629A (en) * | 2017-12-08 | 2018-06-15 | 北京农业智能装备技术研究中心 | A kind of monitoring device of liquid fertilization pipeline, system and method |
-
2004
- 2004-05-15 CN CN 200420031551 patent/CN2746371Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134203A (en) * | 2015-09-08 | 2015-12-09 | 大庆宏测技术服务有限公司 | Multi-phase flow sampling logging instrument for withdrawal well |
| CN107101686A (en) * | 2017-06-30 | 2017-08-29 | 荆州市明德科技有限公司 | Thermal production well steam mass flow measurement target-type flow sensor and target type meter |
| CN108168629A (en) * | 2017-12-08 | 2018-06-15 | 北京农业智能装备技术研究中心 | A kind of monitoring device of liquid fertilization pipeline, system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |