CN201569757U - Pipe column coupling detector - Google Patents
Pipe column coupling detector Download PDFInfo
- Publication number
- CN201569757U CN201569757U CN2009202782135U CN200920278213U CN201569757U CN 201569757 U CN201569757 U CN 201569757U CN 2009202782135 U CN2009202782135 U CN 2009202782135U CN 200920278213 U CN200920278213 U CN 200920278213U CN 201569757 U CN201569757 U CN 201569757U
- Authority
- CN
- China
- Prior art keywords
- signal
- detection
- coil
- filtering
- detection coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000008878 coupling Effects 0.000 title abstract description 5
- 238000010168 coupling process Methods 0.000 title abstract description 5
- 238000005859 coupling reaction Methods 0.000 title abstract description 5
- 230000005291 magnetic effect Effects 0.000 claims abstract description 33
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 239000000523 sample Substances 0.000 claims abstract description 9
- 230000003321 amplification Effects 0.000 claims description 7
- 230000004069 differentiation Effects 0.000 claims description 7
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 7
- 230000004907 flux Effects 0.000 abstract description 5
- 230000006698 induction Effects 0.000 abstract description 2
- 230000005284 excitation Effects 0.000 abstract 2
- 239000003129 oil well Substances 0.000 abstract 1
- 230000007704 transition Effects 0.000 description 5
- 239000012535 impurity Substances 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000003302 ferromagnetic material Substances 0.000 description 2
- 230000003278 mimic effect Effects 0.000 description 2
- -1 pressure Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model relates to a downhole tool detection device, especially tubular column coupling detector for use on the oil field oil well. Comprises a detection probe and a signal conditioner, the utility model discloses owing to adopted excitation coil and detection coil and amplify with the filtering, differentiate, report to the police and contact output connects gradually to be connected with power management circuit. The direct current constant current source drives the excitation coil to generate a magnetic field signal, the detection coil measures the signal, when a coupling of the pipe column passes through the magnetic field, the magnetic flux is changed, and the detection coil detects the signal through the induction voltage and then transmits the signal to the signal conditioner. The weak signal output from the detection coil is amplified and filtered in the filtering and amplifying step and then is transmitted to the judging step. When a coupling comes, the light emitting diode lights up to alarm. The system device has the advantages of simple structure, easy realization, convenient application, accurate detection and strong anti-interference capability.
Description
Technical field:
The utility model relates to a kind of the subsurface tool pick-up unit that is used for using on the oilfield, particularly string collar detecting device.
Background technology:
High temperature snubbing serving technology is the mode that adopts two annular preventers to replace folding transition working string box cupling when coming the sealed tube annular space, has reduced the wearing and tearing of blowout preventer glue core when guaranteeing positiver sealing like this.Guarantee that two annular preventers replace folding transition working string box cupling and carry out smoothly, must accurately know the position that the working string box cupling arrives.Because high temperature snubbing serving environment is abominable, the annular space High Temperature High Pressure, also have sump oil, also be not applied in the collar detector this environment under at present, ultrasonic type detects and mechanical detection all can not be suitable for this site environment and quilt is abandoned employing.
Summary of the invention:
The purpose of this utility model is to provide the string collar detecting device, it can be implemented in the box cupling that detects working string under the high temperature snubbing serving environment accurately, two annular preventers of assurance high temperature snubbing serving device replace folding smoothly and cross box cupling, thereby realize safety in production.
The utility model is made of detection probe and signal conditioner two parts, detection probe comprises field coil and magnetic test coil, signal conditioner is made up of filtering amplification, differentiation, warning and contact output, electric power management circuit, field coil is connected successively with magnetic test coil and with filtering amplification, differentiation, warning and contact output, and and electric power management circuit.
During work, field coil is used to provide the stationary magnetic field, and magnetic test coil detects the distortion in magnetic field and obtains the information of the accurate position of relevant box cupling.The switching value signal is handled and provided to signal conditioner with the detected box cupling electric signal of detection probe.
The utility model is connected successively owing to having adopted field coil to export with magnetic test coil and with filtering amplification, differentiation, warning and contact, and and electric power management circuit.Dc constant current power supply drives field coil and produces a field signal, magnetic test coil is measured this signal simultaneously, when the box cupling of tubing string passes through this magnetic field, will cause the variation of magnetic flux, magnetic test coil passes to signal conditioner after detecting this signal by induced voltage.Pass through amplification, the filtering of filtering amplifying element again from the feeble signal of magnetic test coil output, flow to the differentiation link.Adopted mimic channel differentiating link, relied on the amplitude of signal, by analog operational circuit the threshold values of requirement has been set, when the amplitude of signal moment surpasses the threshold values of setting, i.e. explanation has box cupling to arrive.At this moment circuit is to semaphore lock and export switching value contact signal notification controller, and light emitting diode is lighted warning simultaneously.The native system apparatus structure is simple, it is convenient to be easy to realize, to use, detect accurately, antijamming capability is strong.Adopt contactless magnetic detection method, in the transition conduit temperature too high, when impurity such as pressure, sewage, oil gas, water vapor is arranged, do not influence the reliability of detection.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
Embodiment
As shown in the figure, the utility model is made of detection probe and signal conditioner two parts, detection probe comprises field coil 1 and magnetic test coil 2, signal conditioner is made up of filtering amplification 3, differentiation 4, warning and contact output 5, electric power management circuit 6, field coil 1 and magnetic test coil 2 and amplify 3 with filtering, differentiate 4, warning and contact output 5 is connected successively, and with electric power management circuit 6.
According to the magnetic saturation characteristic of ferromagnetic material, after magnetic field intensity surpasses certain value, its magnetic induction density with changing of magnetic field intensity seldom, at this moment, the magnetic flux total amount of passing through is directly proportional with the area of section of ferromagnetic material, i.e. Φ=B*A.Promptly reflected the sectional area variation by the flux change under the stationary magnetic field is actual, they are a kind of linear corresponding relation.
Adopt active magnetic field detection, be about to the magnetization of measurand and the measurement of field signal and be integrated.During work, drive field coil by dc constant current power supply and produce a field signal, magnetic test coil is measured this signal simultaneously, when the box cupling of tubing string passes through this magnetic field, will cause the variation of magnetic flux, magnetic test coil passes to signal conditioner after detecting this signal by induced voltage.Pass through amplification, the filtering of filtering amplifying element again from the feeble signal of magnetic test coil output, flow to the differentiation link.Adopted mimic channel differentiating link, relied on the amplitude of signal, by analog operational circuit the threshold values of requirement has been set, when the amplitude of signal moment surpasses the threshold values of setting, i.e. explanation has box cupling to arrive.At this moment circuit is to semaphore lock and export switching value contact signal notification controller, and light emitting diode is lighted warning simultaneously.
Characteristics of the present invention are:
1, detects accurately. Tubing coupling to routine can both detect accurately.
2, suitable velocity interval is big. Tubing string speed can both detect box cupling reliably in the 100-500mm/s scope.
3, antijamming capability is strong. Owing to be contactless magnetic detection, tubing string swing, off-centre, annular space HTHP, when annular space has Sewage wet goods impurity, can not affect the reliability of detection.
4, easy to install. Detection probe is loop configuration, it is sleeved on the transition conduit get final product. What detect that signal conditioner sends behind the box cupling is the switching value contact signal, can directly be the control system utilization.
The invention has the beneficial effects as follows:
The native system apparatus structure is simple, it is convenient to be easy to realize, to use, detect accurately, antijamming capability is strong.Adopt contactless magnetic detection method, in the transition conduit temperature too high, when impurity such as pressure, sewage, oil gas, water vapor is arranged, do not influence the reliability of detection.
Claims (1)
1. string collar detecting device, constitute by detection probe and signal conditioner two parts, it is characterized in that: detection probe comprises field coil (1) and magnetic test coil (2), signal conditioner is made up of filtering amplification (3), differentiation (4), warning and contact output (5), electric power management circuit (6), field coil (1) and magnetic test coil (2) also amplify (3) with filtering, differentiate (4) and report to the police and contact output (5) is connected successively, and with electric power management circuit (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202782135U CN201569757U (en) | 2009-12-16 | 2009-12-16 | Pipe column coupling detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202782135U CN201569757U (en) | 2009-12-16 | 2009-12-16 | Pipe column coupling detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201569757U true CN201569757U (en) | 2010-09-01 |
Family
ID=42662051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202782135U Expired - Lifetime CN201569757U (en) | 2009-12-16 | 2009-12-16 | Pipe column coupling detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201569757U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536212A (en) * | 2010-12-21 | 2012-07-04 | 卞康群 | Coupling alarming device |
| CN103161408A (en) * | 2011-12-16 | 2013-06-19 | 卞康群 | Hydraulic type coupling alarm device |
| CN103161409A (en) * | 2011-12-16 | 2013-06-19 | 卞康群 | Hydraulic type coupling alerter |
| CN104343397A (en) * | 2013-07-23 | 2015-02-11 | 卞康群 | String coupling alarm device |
| CN104564033A (en) * | 2015-02-13 | 2015-04-29 | 烟台杰瑞石油装备技术有限公司 | Pipeline coupling detection device |
| CN104612662A (en) * | 2014-12-31 | 2015-05-13 | 郑州光力科技股份有限公司 | Drilling depth measuring device for drill pipe and measuring method adopting same |
-
2009
- 2009-12-16 CN CN2009202782135U patent/CN201569757U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536212A (en) * | 2010-12-21 | 2012-07-04 | 卞康群 | Coupling alarming device |
| CN102536212B (en) * | 2010-12-21 | 2016-04-06 | 盐城市华谊石油机械有限公司 | Coupling alarming device |
| CN103161408A (en) * | 2011-12-16 | 2013-06-19 | 卞康群 | Hydraulic type coupling alarm device |
| CN103161409A (en) * | 2011-12-16 | 2013-06-19 | 卞康群 | Hydraulic type coupling alerter |
| CN103161408B (en) * | 2011-12-16 | 2016-08-03 | 盐城市华谊石油机械有限公司 | Fluid pressure type coupling alarming device |
| CN103161409B (en) * | 2011-12-16 | 2016-08-17 | 盐城市华谊石油机械有限公司 | Fluid pressure type coupling alarm |
| CN104343397A (en) * | 2013-07-23 | 2015-02-11 | 卞康群 | String coupling alarm device |
| CN104343397B (en) * | 2013-07-23 | 2018-06-19 | 江苏康群科技发展有限公司 | String collar warning device |
| CN104612662A (en) * | 2014-12-31 | 2015-05-13 | 郑州光力科技股份有限公司 | Drilling depth measuring device for drill pipe and measuring method adopting same |
| CN104564033A (en) * | 2015-02-13 | 2015-04-29 | 烟台杰瑞石油装备技术有限公司 | Pipeline coupling detection device |
| CN104564033B (en) * | 2015-02-13 | 2017-10-27 | 烟台杰瑞石油装备技术有限公司 | A kind of pipeline coupling detection means |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201569757U (en) | Pipe column coupling detector | |
| CN102305755B (en) | Radial magnetic field-based online abrasive grain monitoring sensor and monitoring method | |
| CN104016099B (en) | The damage of steel cord conveyor belt longitudinal tear is in line vortex monitoring method | |
| CN202421198U (en) | Novel belt speed detection and alarm device | |
| CN202735485U (en) | Motor operation detecting device | |
| CO5290292A1 (en) | FUNCTION MONITOR OF FINAL BLOW VALVE AND TOP COOLING COOLING | |
| CN203652695U (en) | Loading mechanism of device for detecting defects of steel tube | |
| CN203433352U (en) | Intelligent steel structure production control system | |
| CN206248056U (en) | Door frame drives a grade online dimension detection instrument | |
| CN206553005U (en) | Elevator dragging wire rope failure detector | |
| CN110005567A (en) | A kind of machine lifting of water-turbine generator set amount real-time high-precision monitoring device and monitoring method | |
| CN102680217B (en) | Opening pressure detection device for check valve | |
| CN103983883B (en) | Low-voltage direct load cut-off observation circuit | |
| CN102445607A (en) | Point switch detector | |
| CN204203480U (en) | Pipeline transporting articles pick-up unit | |
| CN104680726A (en) | Gas alarm for automatically detecting faults | |
| CN108152524A (en) | A kind of Hall wheel detector and its method of work | |
| CN203587276U (en) | Control air pressure monitoring alarm device of mud pump pneumatic clutch | |
| CN204789464U (en) | Rail metal surface nondestructive detection system based on internet | |
| CN108205011B (en) | Ferromagnetic material internal flaw detection circuit based on low-frequency magnetic leakage | |
| CN105926567A (en) | Soft soil layered settlement magnetic ring and settlement monitoring method | |
| CN105403923A (en) | Device for identifying entry of production logging instrument into lubricator | |
| CN201187995Y (en) | Length detection apparatus | |
| CN205532580U (en) | Plunger detection device | |
| CN205301605U (en) | Device for identifying entry of production logging instrument into lubricator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100901 |
|
| CX01 | Expiry of patent term |