CN201047282Y - Caliper logging instrument output device - Google Patents
Caliper logging instrument output device Download PDFInfo
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- CN201047282Y CN201047282Y CNU2007201512322U CN200720151232U CN201047282Y CN 201047282 Y CN201047282 Y CN 201047282Y CN U2007201512322 U CNU2007201512322 U CN U2007201512322U CN 200720151232 U CN200720151232 U CN 200720151232U CN 201047282 Y CN201047282 Y CN 201047282Y
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Abstract
The utility model discloses an output device of a well diameter measuring instrument and relates to a well diameter measuring instrument which is designed to solve the problem that the existing well diameter measuring instrument can not conveniently measure average values and shapes. The output device of the well diameter measuring instrument increases a constant voltage DC source and a single pole double throw switch one output end of which is connected with an average value output circuit while the other output end is connected with two one-way output circuits in parallel. The output end of the average value output circuit is connected with four potentiometer output resistances in series and the output end of each one-way output circuit is connected with output resistances of two relative potentiometers in series. The average value output circuit and the one-way output circuit convert the output resistance of the potentiometer into the voltage value to output the voltage value, then the well diameter is calculated by the voltage value, and the switching between the average value measurement and the shape measurement is realized by the single pole double throw switch. The utility model is mainly used for measuring oilfields.
Description
Technical field
The utility model relates to the caliper logging instrument, particularly the device of output measurement result in the caliper logging instrument.
Background technology
The caliper logging instrument is a downhole probe of measuring well size and shape, at present, domestic widely used caliper logging instrument is installed 4 gage beams for be mutually 90 degree distributions on tool housing, by driven by motor backup mechanism, make gage beam as umbrella frame from outside oblique the opening of apparatus subject, one end of each gage beam is contacted with the borehole wall, and the other end of gage beam is an eccentric cam shape, by four translation connecting rods that contact with gage beam respectively, the angle variation of gage beam is converted to the straight-line displacement of translation connecting rod.Each translation connecting rod drives a potentiometer respectively, makes potentiometer export a resistance value, can obtain the hole diameter size of corresponding survey mark by resistance value.
When needs are measured the average of hole diameter, the resistance value of the corresponding output of four measuring arm can be connected on the outgoing route, can calculate the average of each measurement result.When needing to measure well size and shape simultaneously, the resistance value that then needs to be mutually two gage beam correspondences of 180 degree is connected on the output channel, be the measurement result on exportable two mutually perpendicular directions like this, by repeatedly measuring the size and the shape that can obtain well.Existing caliper logging instrument can not be measured average and measurement simultaneously, because the direct measurement result of existing caliper logging instrument is a resistance value, and the resistance value that average is measured in output is connected different with the circuit that the resistance value of shape is measured in output, if also need to measure shape after measuring average, also need to measure average after perhaps measuring shape, all need the caliper logging instrument is taken out in well, rewiring then uses very inconvenient.
The utility model content
The utility model provides a kind of caliper logging instrument output device, can measure average and shape easily.
In order to achieve the above object, the utility model adopts following technical scheme: this caliper logging instrument output device comprises the four measuring arm, described four measuring arm is 90 degree circumferential arrangement, and each gage beam correspondence is provided with potentiometer, and the resistance value of potentiometer output measurement; Also comprise constant voltage dc source, the output of this constant voltage dc source is connected with single-pole double-throw switch (SPDT), and an output of this single-pole double-throw switch (SPDT) is connected with the average output circuit, and another output of single-pole double-throw switch (SPDT) is parallel with two unidirectional output circuits; Four potentiometer output resistances of output series connection of described average output circuit, the output resistance of two relative potentiometers of output series connection of described each unidirectional output circuit;
Described constant voltage dc source is by average output circuit output constant current, and this constant current outputs to four potentiometer output resistances of series connection; Described constant voltage dc source is by each unidirectional output circuit output constant current, and this constant current outputs to the output resistance of the relative potentiometer of two series connection.
Be connected different because the resistance value of average is measured in existing caliper logging instrument output with the circuit that the resistance value of shape is measured in output, if also need to measure shape after measuring average, also need to measure average after perhaps measuring shape, all need the caliper logging instrument is taken out in well, rewiring then uses very inconvenient.
After adopting the utility model, because the output of average output circuit is in series with four potentiometer output resistances, and constant current of average output circuit output, so just the output resistance of potentiometer can be converted into magnitude of voltage output, only need know the magnitude of voltage of output, just can calculate the output resistance of potentiometer, can obtain the hole diameter size of corresponding survey mark, and what obtain is the average that the four measuring arm is measured by resistance value.The operating principle of unidirectional output circuit and average output circuit are identical, but because the series connection of the output of unidirectional output circuit is the output resistance of relative potentiometer, the measured value of unidirectional output circuit output is two orthogonal diameters, can depict the shape of well by many groups of orthogonal diameters.And the utility model conversion between measurement average and measurement shape does not need rewiring, only needs the switching single-pole double-throw switch (SPDT).
Description of drawings
Fig. 1 is the schematic diagram of the utility model caliper logging instrument output device;
Fig. 2 is the circuit diagram of filter regulator circuit in the utility model caliper logging instrument output device.
The specific embodiment
The utility model caliper logging instrument output device is converted into voltage output with the output resistance of potentiometer, and by single-pole double-throw switch (SPDT) handover measurement average and measurement shape.Below in conjunction with accompanying drawing the utility model caliper logging instrument output device is described in detail.
Caliper logging instrument output device generally comprises the four measuring arm, and described four measuring arm is 90 degree circumferential arrangement, and each gage beam correspondence is provided with potentiometer, and the resistance value of potentiometer output measurement.As shown in Figure 1, caliper logging instrument output device of the present utility model also comprises constant voltage dc source, the output of this constant voltage dc source is connected with single-pole double-throw switch (SPDT) 3, an output of this single-pole double-throw switch (SPDT) 3 is connected with average output circuit 4, and another output of single-pole double-throw switch (SPDT) is parallel with two unidirectional output circuits 5; Four potentiometer output resistances of output series connection of described average output circuit 4, the output resistance of two relative potentiometers of output series connection of described each unidirectional output circuit 5; Described constant voltage dc source is by average output circuit output constant current, and this constant current outputs to four potentiometer output resistances of series connection; Described constant voltage dc source is by each unidirectional output circuit output constant current, and this constant current outputs to the output resistance of the relative potentiometer of two series connection.
Because constant current of average output circuit output, so just the output resistance of potentiometer can be converted into magnitude of voltage output, only need know the magnitude of voltage of output, just can calculate the output resistance of potentiometer, can obtain the hole diameter size of corresponding survey mark by resistance value, and what obtain is the average that the four measuring arm is measured.The operating principle of unidirectional output circuit and average output circuit are identical, but because the series connection of the output of unidirectional output circuit is the output resistance of relative potentiometer, the measured value of unidirectional output circuit output is two orthogonal diameters, can depict the shape of well by many groups of orthogonal diameters.And the utility model conversion between measurement average and measurement shape does not need rewiring, only needs the switching single-pole double-throw switch (SPDT).
As shown in Figure 1, average output circuit in the utility model is specific as follows: comprise triode Q3 and current-limiting resistance R11, this current-limiting resistance R11 is connected to constant voltage dc source, the emitter stage of this triode Q3 is connected with current-limiting resistance R11 by emitter resistance R12, the base stage of this triode Q3 is by base resistance R13 ground connection, the base stage of this triode Q3 also by two differential concatenations together Zener diode (D7 and D8) be connected four the potentiometer output resistances of connecting between the collector output Y3 of this triode Q3 and the earth terminal with current-limiting resistance R11.
As shown in Figure 1, unidirectional output circuit in the utility model is specific as follows: comprise triode (Q1 or Q2) and current-limiting resistance (R5 or R8), this current-limiting resistance (R5 or R8) is connected to constant voltage dc source, the emitter stage of this triode (Q1 or Q2) is connected with current-limiting resistance (R5 or R8) by emitter resistance (R7 or R10), the base stage of this triode is by base resistance (R6 or R19) ground connection, the base stage of this triode also is connected with current-limiting resistance by Zener diode (D5 or D6), the output resistance of two relative potentiometers of series connection between collector output of this triode (Y1 or Y2) and the earth terminal.
Constant voltage dc source in the utility model can be realized with a battery, also can convert alternating current to direct current by circuit realizes, as shown in Figure 1, be achieved as follows by circuit: this constant voltage dc source comprises AC-DC circuit 1, and the filter regulator circuit 2 that is connected to this AC-DC circuit 1; AC power Vcc is through output DC source, described AC-DC circuit 1 back, and this dc source is through filter regulator circuit 2 back output constant voltage dc sources.
As shown in Figure 1, AC-DC circuit 1 comprises transformer T1, diode rectifier bridge (D1, D2, D3 and D4) and dropping resistor R1, the primary coil of described transformer T1 is connected to AC power Vcc, the secondary coil of described transformer is connected with the input of diode rectifier bridge, and the output of described diode rectifier bridge is connected with dropping resistor.
Described filter regulator circuit 2 comprises three end floating regulators (LM117, LM217 or LM317), is connected with resistance R 2 between the output end vo ut of this three ends floating regulator and the adjustment end ADJ.The input Vin of described three end floating regulators is by capacitor C 1 ground connection, and output end vo ut adjusts end ADJ by adjustable resistance (being made up of R3 and R4) ground connection by capacitor C 2 ground connection.
Distortion as filter regulator circuit, filter regulator circuit 2 can also be realized in the following way: as shown in Figure 2, filter regulator circuit 2 comprises triode Q4 and current-limiting resistance R14, this current-limiting resistance R14 is connected to dc source Vcc ', the colelctor electrode of this three utmost point Q4 pipe is connected to this current-limiting resistance R14, base stage is connected to current-limiting resistance R14 by base resistance R15, and the base stage of this triode Q4 is parallel with base capacity C4 and voltage-stabiliser tube (D9 and D10), and this base capacity C4 and voltage-stabiliser tube (D9 and D10) ground connection, the emitter stage of this triode Q4 passes through emitter capacitance C3 ground connection, and exports constant voltage dc source by the emitter stage of this triode.
When realizing constant voltage dc source with circuit, can export constant voltage dc source by two filter regulator circuits, its connected mode is as follows: the output of AC-DC circuit is parallel with two filter regulator circuits, the output of one of them filter circuit of pressure-stabilizing is connected with a unidirectional output circuit, the output of another filter circuit of pressure-stabilizing is connected with a single-pole double-throw switch (SPDT), an output of this single-pole double-throw switch (SPDT) is connected with another unidirectional output circuit, and another output of this single-pole double-throw switch (SPDT) is connected with the average output circuit.
When the user need measure average, can select single-pole double-throw switch (SPDT) 3 is switched to average output circuit 4, and be in series with the output resistance of four potentiometers between Y3 and the Y0 end, the magnitude of voltage that can be assigned to so just by the output resistance of four potentiometers of output Y3 output, can calculate the average of hole diameter, this average can output to computer, shows CAL by computer.
When the user need measure shape, can select single-pole double-throw switch (SPDT) 3 is switched to unidirectional output circuit 5, the magnitude of voltage of exporting by the output (Y1 and Y2) of unidirectional output circuit 5 can calculate two orthogonal hole diameters, and the result outputed to computer, draw out the shape of well by computer according to result of calculation, be shown as the X-Y CAL.The utility model caliper logging instrument output device is mainly used in the measurement of oil field well.
The above; it only is the specific embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (8)
1. a caliper logging instrument output device comprises the four measuring arm, and described four measuring arm is 90 degree circumferential arrangement, and each gage beam correspondence is provided with potentiometer, and the resistance value of potentiometer output measurement; It is characterized in that, also comprise constant voltage dc source, the output of this constant voltage dc source is connected with single-pole double-throw switch (SPDT), and an output of this single-pole double-throw switch (SPDT) is connected with the average output circuit, and another output of single-pole double-throw switch (SPDT) is parallel with two unidirectional output circuits; Four potentiometer output resistances of output series connection of described average output circuit, the output resistance of two relative potentiometers of output series connection of described each unidirectional output circuit;
Described constant voltage dc source is by average output circuit output constant current, and this constant current outputs to four potentiometer output resistances of series connection; Described constant voltage dc source is by each unidirectional output circuit output constant current, and this constant current outputs to the output resistance of the relative potentiometer of two series connection.
2. according to the described caliper logging instrument of claim 1 output device, it is characterized in that, described average output circuit comprises triode and current-limiting resistance, this current-limiting resistance is connected to constant voltage dc source, the emitter stage of this triode is connected with current-limiting resistance by emitter resistance, the base stage of this triode is by base resistance ground connection, the base stage of this triode also by two differential concatenations together Zener diode be connected four the potentiometer output resistances of connecting between the collector output of this triode and the earth terminal with current-limiting resistance.
3. according to the described caliper logging instrument of claim 1 output device, it is characterized in that, described unidirectional output circuit comprises triode and current-limiting resistance, this current-limiting resistance is connected to constant voltage dc source, the emitter stage of this triode is connected with current-limiting resistance by emitter resistance, the base stage of this triode is by base resistance ground connection, the base stage of this triode also is connected with current-limiting resistance by Zener diode, the output resistance of two relative potentiometers of series connection between the collector output of this triode and the earth terminal.
4. according to the described caliper logging instrument of claim 1 output device, it is characterized in that described constant voltage dc source comprises the AC-DC circuit, and the filter regulator circuit that is connected to this AC-DC circuit; AC power is through output DC source behind the described AC-DC circuit, and this dc source is exported constant voltage dc source through behind the filter regulator circuit.
5. according to the described caliper logging instrument of claim 4 output device, it is characterized in that, the output of described AC-DC circuit is parallel with two filter regulator circuits, the output of one of them filter circuit of pressure-stabilizing is connected with a unidirectional output circuit, the output of another filter circuit of pressure-stabilizing is connected with a single-pole double-throw switch (SPDT), an output of this single-pole double-throw switch (SPDT) is connected with another unidirectional output circuit, and another output of this single-pole double-throw switch (SPDT) is connected with the average output circuit.
6. according to claim 4 or 5 described caliper logging instrument output devices, it is characterized in that, described AC-DC circuit comprises transformer, diode rectifier bridge and dropping resistor, the primary coil of described transformer is connected to AC power, the secondary coil of described transformer is connected with the input of diode rectifier bridge, and the output of described diode rectifier bridge is connected with dropping resistor.
7. according to claim 4 or 5 described caliper logging instrument output devices, it is characterized in that, described filter regulator circuit comprises three end floating regulators, be connected with resistance between the output of this three ends floating regulator and the adjustment end, input passes through capacity earth, output is adjusted end by adjustable resistance ground connection by capacity earth.
8. according to claim 4 or 5 described caliper logging instrument output devices, it is characterized in that, described filter regulator circuit comprises triode and current-limiting resistance, this current-limiting resistance is connected to dc source, the colelctor electrode of this triode is connected to this current-limiting resistance, base stage is connected to current-limiting resistance by base resistance, and the base stage of this triode is parallel with base capacity and voltage-stabiliser tube, and this base capacity and voltage-stabiliser tube ground connection, the emitter stage of this triode passes through emitter capacitance ground connection, and exports constant voltage dc source by the emitter stage of this triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201512322U CN201047282Y (en) | 2007-06-08 | 2007-06-08 | Caliper logging instrument output device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201512322U CN201047282Y (en) | 2007-06-08 | 2007-06-08 | Caliper logging instrument output device |
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| Publication Number | Publication Date |
|---|---|
| CN201047282Y true CN201047282Y (en) | 2008-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201512322U Expired - Fee Related CN201047282Y (en) | 2007-06-08 | 2007-06-08 | Caliper logging instrument output device |
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| Country | Link |
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| CN (1) | CN201047282Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094633A (en) * | 2009-12-14 | 2011-06-15 | 西安威尔罗根能源科技有限公司 | Hole caliper for logging diameter of bored shaft |
| CN102926744A (en) * | 2012-11-21 | 2013-02-13 | 沈阳航空航天大学 | Signal acquisition circuit of horizontal well dual caliper |
-
2007
- 2007-06-08 CN CNU2007201512322U patent/CN201047282Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094633A (en) * | 2009-12-14 | 2011-06-15 | 西安威尔罗根能源科技有限公司 | Hole caliper for logging diameter of bored shaft |
| CN102926744A (en) * | 2012-11-21 | 2013-02-13 | 沈阳航空航天大学 | Signal acquisition circuit of horizontal well dual caliper |
| CN102926744B (en) * | 2012-11-21 | 2015-07-01 | 沈阳航空航天大学 | Signal acquisition circuit of horizontal well dual caliper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080416 Termination date: 20100608 |