CN202832504U - Device of accurate calculation of well depth based on polarized light - Google Patents
Device of accurate calculation of well depth based on polarized light Download PDFInfo
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- CN202832504U CN202832504U CN 201220415613 CN201220415613U CN202832504U CN 202832504 U CN202832504 U CN 202832504U CN 201220415613 CN201220415613 CN 201220415613 CN 201220415613 U CN201220415613 U CN 201220415613U CN 202832504 U CN202832504 U CN 202832504U
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Abstract
The utility model discloses a device of accurate calculation of well depth based on polarized light. The device of accurate calculation of well depth based on polarized light comprises at least a group of photoelectric detectors. The photoelectric detector comprises an emitter (3) and a receiver (4). A front end of the emitter (3) is provided with an optical filter in a horizontal direction. A front end of the receiver (4) is provided with an optical filter in a vertical direction. A right angle reflection plate (5) used for reflecting a horizontal polarized light is arranged on the traveling block (2). The device of accurate calculation of well depth based on polarized light is characterized in that the using, assembling and fixing are simple, the optical filters are arranged on the front ends of the emitter and the receiver, the light waves emitted from the emitter are separated from other light waves, the errors of the calculation of well depth is reduced, accuracy and reliability of the results of the calculation are improved. In the actual operation process, due to the fact that the accuracy of the calculation of well depth are improved substantially, a large number of error correction time are reduced, a large number of invisible expenses are saved. Due to the fact that calculation results are almost close to actual values, the accuracy of the calculation of other parameters is improved.
Description
Technical field
The utility model relates to a kind of device based on polarised light accurate Calculation well depth.
Background technology
Well depth is a very important characterising parameter, and its accuracy of measurement is directly connected to many choices in petroleum works field.Overcome the well depth DATA REASONING error that is caused by measuring method, instrument, environment and human factor is the major issue that the oil drilling industry faces always.
At present, well depth detection mode commonly used has by drawworks sensor and measures two kinds of winch rotational angle and photoelectricity real-time detection tourist bus positions.Principle all is to transfer height by measuring directly or indirectly tourist bus, and namely the well head drilling tool transfers height indirect calculation well depth.Also can obtain in real time the well depth data by wireless drilling measuring system MWD or LWD in addition, but complete measurement-while-drilling system price is very expensive, seldom use at general wellbore construction scene.
Find according to the investigation to situ of drilling well well depth survey device mode of occupation: the winch metering system that (1) is present, because the wire rope on the winch drum is the stratiform winding structure, the radius size of every circle wire rope is different, starting point and the terminal point of operating mode have randomness, therefore, the length of calculating winch cable by measuring the winch drum corner determines that there is larger error in the method for well depth; In addition, drawworks sensor is installed in winch inside, has all brought inconvenience for dismounting, maintenance.(2) device that transmits and receives of photodetector being installed respectively on overhead traveling crane and tourist bus determines that to survey the tourist bus position traditional detection method of well depth detects the distance weak point, and because attenuation is not obvious, the light wave that receiver can't be distinguished its acceptance is from transmitter or other light sources, therefore, cause producing the error calculating of well depth.
The utility model content
The purpose of this utility model is to solve the deficiencies in the prior art, provide a kind of well depth survey cost low, dismounting and easy to maintenance, detect distance, guarantee the reliability of the polarised light that receiver receives, the device based on polarised light accurate Calculation well depth that the well depth survey error is little, accuracy is high by the polarizing filter set up.
The purpose of this utility model is achieved through the following technical solutions: a kind of device based on polarised light accurate Calculation well depth, and it comprises:
At least one group of photodetector for detection of the tourist bus position, photodetector is comprised of transmitter and receiver, and the front end of transmitter is provided with the horizontal direction Filter, and the front end of receiver is provided with the vertical direction Filter;
A right angle reflecting plate that is used for the reflection levels polarised light that is installed on close photodetector one side on the tourist bus.
Photodetector described in the utility model is located on the derrick.
The size of right angle described in the utility model reflecting plate inclined angle alpha equal orthogonal polarized light and horizontal polarization light angle β size 1/2.
The utility model comprises that also is used for the drill pipe counter that record uses drilling rod quantity.
The utility model also comprises a central processor CPU that is used for control transmitter emission light wave, detection receiver reception light wave and finishes calculating.
The utility model also comprises a display unit that is used for showing well depth result of calculation, and display unit is connected with central processor CPU.
The beneficial effects of the utility model are:
When (1) needing measurement depth, photodetector can be installed on the derrick, the right angle reflecting plate is installed on the tourist bus, connecting control system can measure again, and use, dismounting and maintenance are all very convenient;
(2) set up Filter at the front end of transmitter and receiver, the light wave that transmitter is emitted enters receiver through the right angle baffle reflection after filtering through the horizontal direction Filter again, light wave and other light waves that transmitter is sent make a distinction, guaranteed that receiver receives the reliability of polarised light, reduce the error of well depth survey, improved accuracy of measurement results and reliability;
(3) in actual mechanical process, because the significantly lifting of well depth survey accuracy can be saved a large amount of error correction time, saved a large amount of invisible expenditures;
(4) since the result of calculation of well depth almost close to actual value, for the calculating of other parameters provides higher accuracy guarantee.
Description of drawings
Fig. 1 is the structural representation that the utility model calculates the device of well depth;
Fig. 2 is the use state diagram that the utility model calculates the device of well depth;
Fig. 3 is the structural representation of the utility model right angle reflecting plate;
Among the figure, 1-derrick, 2-tourist bus, 3-transmitter, 4-receiver, 5-right angle reflecting plate.
The specific embodiment
Below in conjunction with accompanying drawing the technical solution of the utility model is described in further detail, but protection domain of the present utility model is not limited to the following stated.
As shown in Figure 1, a kind of device based on polarised light accurate Calculation well depth, it comprises at least one group for detection of the photodetector of tourist bus 2 positions, photodetector is located on the derrick 1, photodetector is comprised of transmitter 3 and receiver 4, the front end of transmitter 3 is provided with the horizontal direction Filter, and the front end of receiver 4 is provided with the vertical direction Filter; A right angle reflecting plate 5 that is used for the reflection levels polarised light that is installed on close photodetector one side on the tourist bus 2.
As shown in Figure 2, well depth H=h*n-h1, wherein, h is the length of every section drilling rod, the drilling rod quantity of n for using, h1 is the setting height(from bottom) of transmitter 3.
As shown in Figure 3, the size of right angle reflecting plate 5 inclined angle alpha equal orthogonal polarized light and horizontal polarization light angle β size 1/2.
It comprises that also is used for the drill pipe counter that record uses drilling rod quantity, central processor CPU and a display unit that is used for showing well depth result of calculation that is used for control transmitter 3 emission light waves, detection receiver 4 reception light waves and finishes calculating, display unit is connected with central processor CPU.
The operating procedure of calculating well depth is as follows:
S1: will be installed in respectively on the derrick 1 with the transmitter 3 of horizontal direction Filter with the receiver 4 of vertical direction Filter;
S2: respectively transmitter 3 and receiver 4 are electrically connected with central processor CPU;
S3: central processor CPU control transmitter 3 is the emission light wave constantly;
S4: light wave is only launched horizontal polarization light through the optical filtering of horizontal direction Filter;
S5: right angle reflecting plate 5 is installed on the tourist bus 2, and right angle reflecting plate 5 moves up and down under the drive of tourist bus 2, and when right angle reflecting plate 5 moved to position with transmitter 3 levels, reflecting plate 5 reflection levels polarised lights in right angle also reversed 90 ° with its polarization direction;
S6: central processor CPU detects receiving terminal 4 and receives orthogonal polarized light;
S7: central processor CPU calculates well depth.
S8: display unit shows well depth result of calculation.
Claims (6)
1. device based on polarised light accurate Calculation well depth, it is characterized in that: it comprises:
At least one group of photodetector for detection of tourist bus (2) position, photodetector is comprised of transmitter (3) and receiver (4), and the front end of transmitter (3) is provided with the horizontal direction Filter, and the front end of receiver (4) is provided with the vertical direction Filter;
One is installed on the upper right angle reflecting plate (5) that is used for the reflection levels polarised light near photodetector one side of tourist bus (2).
2. a kind of device based on polarised light accurate Calculation well depth according to claim 1, it is characterized in that: described photodetector is located on the derrick (1).
3. a kind of device based on polarised light accurate Calculation well depth according to claim 1 is characterized in that: the size of described right angle reflecting plate (5) inclined angle alpha equal orthogonal polarized light and horizontal polarization light angle β size 1/2.
4. a kind of device based on polarised light accurate Calculation well depth according to claim 1 is characterized in that: it comprises that also is used for the drill pipe counter that record uses drilling rod quantity.
5. a kind of device based on polarised light accurate Calculation well depth according to claim 1 is characterized in that: it comprises that also one is used for control transmitter (3) emission light wave, detects the central processor CPU that receiver (4) receives light wave and finishes calculating.
6. a kind of device based on polarised light accurate Calculation well depth according to claim 1 is characterized in that: it also comprises a display unit that is used for showing well depth result of calculation, and display unit is connected with central processor CPU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220415613 CN202832504U (en) | 2012-08-21 | 2012-08-21 | Device of accurate calculation of well depth based on polarized light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220415613 CN202832504U (en) | 2012-08-21 | 2012-08-21 | Device of accurate calculation of well depth based on polarized light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832504U true CN202832504U (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220415613 Expired - Fee Related CN202832504U (en) | 2012-08-21 | 2012-08-21 | Device of accurate calculation of well depth based on polarized light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202832504U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797457A (en) * | 2012-08-21 | 2012-11-28 | 成都宏天电传工程有限公司 | Device and method for precisely calculating well depth based on polarized light |
-
2012
- 2012-08-21 CN CN 201220415613 patent/CN202832504U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797457A (en) * | 2012-08-21 | 2012-11-28 | 成都宏天电传工程有限公司 | Device and method for precisely calculating well depth based on polarized light |
| CN102797457B (en) * | 2012-08-21 | 2015-08-26 | 四川宏华电气有限责任公司 | A kind of device and method based on polarised light accurate Calculation well depth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SICHUAN HONGHUA ELECTRIC CO., LTD. Free format text: FORMER NAME: CHENGDU HONGTIAN TELEX ENGINEERING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 610036 Sichuan city of Chengdu province Jinniu District Yingbin Road Information Park Road No. 99 Patentee after: SICHUAN HONGHUA ELECTRIC CO., LTD. Address before: 610036 Sichuan city of Chengdu province Jinniu District Yingbin Road Information Park Road No. 99 Patentee before: Chengdu Hongtian Electric Drive Engineering Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20170821 |