CN201588627U - Power driver for slurry pulse generator - Google Patents
Power driver for slurry pulse generator Download PDFInfo
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- CN201588627U CN201588627U CN2010201008775U CN201020100877U CN201588627U CN 201588627 U CN201588627 U CN 201588627U CN 2010201008775 U CN2010201008775 U CN 2010201008775U CN 201020100877 U CN201020100877 U CN 201020100877U CN 201588627 U CN201588627 U CN 201588627U
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Abstract
The utility model discloses a power driver for a slurry pulse generator, which comprises an oscillating circuit, a transformer module, a capacitor module, further a main control circuit, a voltage conversion circuit and a capacitor voltage monitoring circuit. The pulse signal from the underground probe is input to the main control circuit through the voltage conversion circuit. The main control circuit controls the time sequence of the whole circuit and generates discharging, charging signals and maintains control signal to corresponding control circuit. By controlling discharging and charging of the capacitor module, the valve of the slurry pulse generator is started when the underground probe transmits the pulse signal and shut down when the pulse signal is over. The capacitor voltage monitoring circuit detects voltage of the capacitor module so that the capacitor module is to charge when the voltage is lower. The power deriver is designed by combining software and hardware, has simple circuit and good agility and is suitable for slurry pulse generators of different types and different underground work conditions.
Description
Technical field:
The utility model relates to the analog line driver of a kind of mud pulse generator that is used for wireless drilling in petroleum drilling engineering.
Background technology:
Mud-pulse transmission is a kind of data transfer mode that current well logging during system generally uses.The variation of the inner mud pressure of the mud pulse generator opening and closing by inner valve causing drill string, the pressure sensor that is installed in standpipe detects.The analog line driver of mud pulse generator is the instrument that energy is provided to mud pulse generator, and when the down-hole inserting tube was sent out pulse signal, it can provide enough energy to valve, makes opening of valves, is the important instrument that realizes the downhole data wireless transmission.
Hardware circuit is used in the analog line driver design of existing mud pulse generator fully, complex structure, and can only be at a kind of mud pulse generator of model, the sequential that opens and closes valve is more single, can not be suitable for the mud pulse generator and the down-hole complex working condition of different model.In order to enlarge the scope of application of instrument, need improve existing instrument, overcome the shortcoming of existence, simplify circuit, optimize circuit structure, increase the flexibility of entire circuit.
Summary of the invention:
The purpose of this utility model is the analog line driver of a kind of mud pulse generator of design, this analog line driver produces required control signal with microprocessor, by the charge and discharge of control capacitance module, make the continuous opening and closing of valve of mud pulse generator, produce mud-pressure pulses.This analog line driver simplicity of design, reliable is fit to the use of well logging during.
The analog line driver of a kind of mud pulse generator described in the utility model, comprise oscillating circuit, transformer module, capacitance module, it is characterized in that: also comprise governor circuit, voltage conversion circuit, capacitance voltage monitoring circuit, the control signal of governor circuit output is connected respectively to charging control circuit, retentive control circuit, charge/discharge control circuit.
Described analog line driver, governor circuit use microprocessor, and voltage conversion circuit and capacitance voltage monitoring circuit are connected two of microprocessor respectively and interrupt turnings.
Described analog line driver, the sequential of governor circuit is produced by microprocessor, when microprocessor is exported control signal to charging control circuit, retentive control circuit and charge/discharge control circuit respectively, the metal-oxide-semiconductor conducting of related circuit inside, otherwise be in cut-off state.
Described analog line driver, capacitance voltage monitoring circuit comprise comparator and external resistance and electric capacity.Comparator uses LM139, and resistance is provided with the negative terminal voltage of comparator, and when making capacitance module voltage be lower than 60V, comparator output low level signal.
The beneficial effect that the analog line driver of a kind of mud pulse generator described in the utility model has is, method for designing soft, combination of hardware that this analog line driver adopts, circuit is simple, flexible, driving force is strong, be fit to dissimilar mud pulse generators and different underground workings, and design the time made full use of the negative supply of down-hole battery, prolonged the application life of battery.
Below in conjunction with drawings and Examples the utility model is further specified.
Description of drawings:
Fig. 1 represents the analog line driver schematic diagram of mud pulse generator.
Fig. 2 represents the schematic diagram of capacitance voltage monitoring circuit
The specific embodiment:
Now, the utility model is further described in conjunction with Figure of description 1,2.
The down-hole battery provides ± and the power supply of 17V gives down-hole inserting tube and analog line driver.The down-hole inserting tube mainly uses the positive supply of battery, for the electric equilibrium of using of battery, prolongs the application life of battery, and the analog line driver of design mainly uses the negative supply of battery.During the pulse signal input power driver of down-hole inserting tube, must be earlier through voltage transitions, be complementary with the negative supply circuit of analog line driver.
After analog line driver powers on, oscillating circuit 4 output AC signals, and be connected to transformer module 5.Transformer module 5 is exported the charging voltage of about 120V and the maintenance voltage of 60V after rectification.Charging voltage is connected to charging control circuit 6, keeps voltage to be connected to retentive control circuit 7.When the down-hole inserting tube was sent out pulse signal, the pulse signal of 5V was connected to governor circuit 2 through voltage conversion circuit 1.When governor circuit 2 detected the rising edge of pulse signal, the control signal of an about 50ms of output was given charge/discharge control circuit 9, the metal-oxide-semiconductor conducting of charge/discharge control circuit 9 inside, and capacitance module 8 begins to mud pulse generator 10 discharges, opening of valves.Behind the opening of valves, governor circuit 2 is exported inhibit signal immediately and is given retentive control circuit 7, and the metal-oxide-semiconductor conducting in the retentive control circuit 7 keeps voltage to output to mud pulse generator 10, makes valve be in open mode at the rising edge of pulse signal always.At the trailing edge of pulse signal, governor circuit 2 stops to export inhibit signal, and the valve of mud pulse generator 10 cuts out.When governor circuit 2 detected the pulse signal of next down-hole inserting tube, valve was opened again again.
Claims (4)
1. the analog line driver of a mud pulse generator, comprise: oscillating circuit (4), transformer module (5), capacitance module (8), it is characterized in that: also comprise governor circuit (2), voltage conversion circuit (1), capacitance voltage monitoring circuit (3), the control signal of governor circuit (2) output is connected respectively to charging control circuit (6), retentive control circuit (7), charge/discharge control circuit (9).
2. the analog line driver of a kind of mud pulse generator according to claim 1 is characterized in that: governor circuit (2) uses microprocessor, and voltage conversion circuit (1) and capacitance voltage monitoring circuit (3) are connected two interruption turnings of microprocessor respectively.
3. the analog line driver of a kind of mud pulse generator according to claim 1, it is characterized in that: the sequential of governor circuit (2) is produced by microprocessor, when microprocessor is exported control signal to charging control circuit (6), retentive control circuit (7) and charge/discharge control circuit (9) respectively, the metal-oxide-semiconductor conducting of related circuit inside, otherwise be in cut-off state.
4. the analog line driver of a kind of mud pulse generator according to claim 1, it is characterized in that: capacitance voltage monitoring circuit (3) comprises comparator (18) and external resistance and electric capacity, comparator (18) uses LM139, resistance (16), (17) are provided with the negative terminal voltage of comparator (18), the selection of resistance (11), (12), (13), (14) makes capacitance module (8) when voltage is lower than 60V, comparator (18) output low level signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201008775U CN201588627U (en) | 2010-01-25 | 2010-01-25 | Power driver for slurry pulse generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201008775U CN201588627U (en) | 2010-01-25 | 2010-01-25 | Power driver for slurry pulse generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201588627U true CN201588627U (en) | 2010-09-22 |
Family
ID=42748406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201008775U Expired - Lifetime CN201588627U (en) | 2010-01-25 | 2010-01-25 | Power driver for slurry pulse generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201588627U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993809A (en) * | 2015-07-17 | 2015-10-21 | 中国石油集团渤海钻探工程有限公司 | Drilling fluid positive pulse signal driving circuit for intelligent drilling tool |
| CN105003217A (en) * | 2015-07-17 | 2015-10-28 | 中国石油集团渤海钻探工程有限公司 | Mud positive-pulse signal driving system and method for modulating pulse widths of square waves |
| CN104024573B (en) * | 2011-11-03 | 2018-05-15 | 快帽系统公司 | Production logging instrument |
| US10563501B2 (en) | 2013-12-20 | 2020-02-18 | Fastcap Systems Corporation | Electromagnetic telemetry device |
-
2010
- 2010-01-25 CN CN2010201008775U patent/CN201588627U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104024573B (en) * | 2011-11-03 | 2018-05-15 | 快帽系统公司 | Production logging instrument |
| US10830034B2 (en) | 2011-11-03 | 2020-11-10 | Fastcap Systems Corporation | Production logging instrument |
| US11512562B2 (en) | 2011-11-03 | 2022-11-29 | Fastcap Systems Corporation | Production logging instrument |
| US10563501B2 (en) | 2013-12-20 | 2020-02-18 | Fastcap Systems Corporation | Electromagnetic telemetry device |
| US11313221B2 (en) | 2013-12-20 | 2022-04-26 | Fastcap Systems Corporation | Electromagnetic telemetry device |
| CN104993809A (en) * | 2015-07-17 | 2015-10-21 | 中国石油集团渤海钻探工程有限公司 | Drilling fluid positive pulse signal driving circuit for intelligent drilling tool |
| CN105003217A (en) * | 2015-07-17 | 2015-10-28 | 中国石油集团渤海钻探工程有限公司 | Mud positive-pulse signal driving system and method for modulating pulse widths of square waves |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150921 Address after: 100029 Beijing Chaoyang District Hui Xin a No. twelve layer 6 Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Patentee after: Drilling Well Technology Institute, Shengli Petroleum Engineering Co., Ltd., SINOPEC Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: China Petrochemical Group Corp. Patentee before: Well-Drilling Technology Inst., Shengli Petroleum Administration, SINOPEC |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100922 |
|
| CX01 | Expiry of patent term |