CN104675770A - Downhole mini hydraulic driving device - Google Patents
Downhole mini hydraulic driving device Download PDFInfo
- Publication number
- CN104675770A CN104675770A CN201410466326.3A CN201410466326A CN104675770A CN 104675770 A CN104675770 A CN 104675770A CN 201410466326 A CN201410466326 A CN 201410466326A CN 104675770 A CN104675770 A CN 104675770A
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- China
- Prior art keywords
- rfid
- hydraulic pump
- central unit
- frequency signal
- detection antenna
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
Abstract
The invention discloses a downhole mini hydraulic driving device. The downhole mini hydraulic driving device comprises a central control unit, a hydraulic oil cylinder, an RFID (radio-frequency identification) signal processing device and an RFID radio-frequency signal detection antenna. The RFID radio-frequency signal detection antenna is connected with the input end of the RFID signal processing device, the output end of the RFID signal processing device is connected with the input end of the central control unit, and the output end of the central control unit is connected with the driving end of the hydraulic oil cylinder. The downhole mini hydraulic driving device has the advantages that the problems of high cost and low reliability of existing downhole devices are solved; a hydraulic driving system achieves extension or retraction of a piston rod of the hydraulic oil cylinder according to detected control signals through its unique oil way arrangement, so that reliable and effective mechanical power for reciprocation is provided for downhole tools; the downhole mini hydraulic driving device is efficient, intelligent, simple and convenient to operate and rapid.
Description
Technical field
The present invention relates to field of petroleum exploitation, particularly a kind of downhole micro fluid pressure drive device.
Background technique
The execution of field of petroleum exploitation part downhole tool needs is repeatedly opened, closing motion, and the driving of these instruments at present generally has two kinds of forms: one relies on well head coiled tubing to probe in well, drags downhole tool execute the task by aboveground corresponding action; Another is taked the form of wire cable by control signal and drives electrical energy transfer to realize corresponding actions function to downhole electric instrument.The former is Purely mechanical operation, and intelligence degree is lower, and the workman's workload that operates is larger; Although and the latter improves to some extent compared with the former, in aboveground cable car and the supervisory system of need configuring, add cost of production, and this kind of form cannot operate for the instrument being placed in down-hole in advance.
Summary of the invention
For defect of the prior art, the invention provides a kind of downhole micro fluid pressure drive device, thus solve shortcoming of the prior art and deficiency.
The present invention has aimed to provide a kind of downhole micro fluid pressure drive device, comprising: central unit, hydraulic jack, RFID signal treatment device and RFID radio-frequency signal detection antenna; Described RFID radio-frequency signal detection antenna is connected with the input end of described RFID signal treatment device, the output terminal of described RFID signal treatment device is connected with the input end of described central unit, and the output terminal of described central unit is connected with the drive end of described hydraulic jack.
In a preferred embodiment, also comprise: oil hydraulic pump, described oil hydraulic pump is connected with the side filler opening of described hydraulic jack.
In a preferred embodiment, also comprise: RFID radio-frequency signal detection antenna radical occlusion device, described RFID radio-frequency signal detection antenna radical occlusion device is arranged at outside described RFID radio-frequency signal detection antenna; If described RFID radio-frequency signal detection antenna is blocked, then described RFID radio-frequency signal detection antenna produces and blocks signal, described central unit according to described in block signal acquisition hydraulic jack drive singal, this hydraulic jack drive singal is sent described oil hydraulic pump, drive described oil hydraulic pump to open or close, hydraulic jack described in hydraulic pump drive runs or stops.
In a preferred embodiment, also comprise, pressure transducer, the induction output terminal of described pressure transducer is connected with the input end of described central unit, described central unit obtains hydraulic jack drive singal according to the influence value of described pressure transducer, this hydraulic jack drive singal is sent described oil hydraulic pump, drives described oil hydraulic pump to open or close, hydraulic jack described in hydraulic pump drive runs or stops.
In a preferred embodiment, also comprise: high temperature resistant battery pack and intelligent electric power management device; Described high temperature resistant battery pack is connected with the input end of intelligent electric power management device, the output terminal of described intelligent electric power management device is connected with the power input of described central unit, oil hydraulic pump, RFID signal treatment device and RFID radio-frequency signal detection antenna, and input end is connected with the output terminal of described central unit.
In a preferred embodiment, described central unit is according to the influence value blocking signal or described pressure transducer described in receiving, obtain oil hydraulic pump to power information, this oil hydraulic pump information of powering is sent to described intelligent electric power management device, and described intelligent electric power management device is powered to described oil hydraulic pump according to this oil hydraulic pump information of powering.
In a preferred embodiment, in the pilot line of described hydraulic jack, safety valve and solenoid directional control valve are also set.
In a preferred embodiment, also comprise, cylinder sleeve bucket, described central unit, hydraulic jack, RFID signal treatment device and RFID radio-frequency signal detection antenna are fixedly connected in described cylinder sleeve bucket.
In a preferred embodiment, described cylinder sleeve bucket material of main part is stainless steel material.
In a preferred embodiment, also comprise, infrared senor, the induction end of described infrared senor is fixed on the outer wall of described cylinder sleeve, output terminal is connected with the input end of described central unit, described central unit is according to the influence value of the infrared senor received, obtain the power supply information of RFID signal treatment device and RFID radio-frequency signal detection antenna, this power supply information is sent to described intelligent electric power management device, described intelligent electric power management device is powered to described RFID signal treatment device and RFID radio-frequency signal detection antenna according to this power supply information.
The downhole micro fluid pressure drive device controlled based on multiple wireless instructions in this practical information, micro hydraulic drive system self is equipped with driving and control battery power, can with drilling rod, sleeve pipes etc. are transferred in deep-well, and can well head pressure ripple be passed through, RFID tag, timing automatic such as to wake up at the control that various ways realizes underground hydraulic pressure drive system, hydraulic driving system realizes stretching out of hydraulic jack or retraction operation according to the control signal detected by the oil circuit layout of its uniqueness, thus for downhole tool provide reliable and effective to-and-fro motion machinery power.
Therefore compared with prior art, have the following advantages according to downhole micro fluid pressure drive device provided by the present invention: can with drilling rod, sleeve pipes etc. are transferred in deep-well, and can well head pressure ripple be passed through, RFID tag, timing automatic such as to wake up at the control that various ways realizes underground hydraulic pressure drive system, hydraulic driving system realizes stretching out of hydraulic cylinder piston rod or retraction operation according to the control signal detected by the oil circuit layout of its uniqueness, thus for downhole tool provide reliable and effective to-and-fro motion machinery power, efficiently, intelligence, simple to operate, convenient, fast.
Accompanying drawing explanation
Fig. 1 is the composition schematic diagram of downhole micro fluid pressure drive device in one embodiment of the present invention;
Fig. 2 is the hydraulic principle schematic diagram of downhole micro fluid pressure drive device in one embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, invention is described in further detail.
At one of the present invention preferred embodiment middle downhole micro fluid pressure drive device, comprise high temperature resistant battery pack 1, intelligent electric power management device 2, RFID radio-frequency signal detection antenna 3, RFID signal treatment device 4, pressure transducer 5, hydraulic actuator 6, central unit 7.Comprise: central unit 7, hydraulic jack 15, RFID signal treatment device 4 and RFID radio-frequency signal detection antenna 3; RFID radio-frequency signal detection antenna 3 is connected with the input end of RFID signal treatment device 4, and the output terminal of RFID signal treatment device 4 is connected with the input end of central unit 7, and the output terminal of central unit 7 is connected with the drive end of hydraulic jack 15.Also comprise in said structure: oil hydraulic pump 9, oil hydraulic pump 9 is connected with the side filler opening of hydraulic jack 15.Its pressure sensitive device, in a preferred embodiment, comprising: RFID radio-frequency signal detection antenna 3 radical occlusion device, and RFID radio-frequency signal detection antenna 3 radical occlusion device is arranged at outside RFID radio-frequency signal detection antenna 3; If RFID radio-frequency signal detection antenna 3 is blocked, then RFID radio-frequency signal detection antenna 3 produces and blocks signal, central unit 7 is according to blocking signal acquisition hydraulic jack 15 drive singal, this hydraulic jack 15 drive singal is sent oil hydraulic pump 9, drive oil hydraulic pump 9 to open or close, oil hydraulic pump 9 drives hydraulic jack 15 run or stop.In another preferred embodiment, pressure sensitive device is, pressure transducer 12, the induction output terminal of pressure transducer 12 is connected with the input end of central unit 7, central unit 7 obtains hydraulic jack 15 drive singal according to the influence value of pressure transducer 12, this hydraulic jack 15 drive singal is sent oil hydraulic pump 9, and drive oil hydraulic pump 9 to open or close, oil hydraulic pump 9 drives hydraulic jack 15 run or stop.
For ensureing that rational downhole system is powered, therefore in another preferred embodiment, also comprise: high temperature resistant battery pack 1 and intelligent electric power management device 2; High temperature resistant battery pack 1 is connected with the input end of intelligent electric power management device 2, the output terminal of intelligent electric power management device 2 is connected with the power input of central unit 7, oil hydraulic pump 9, RFID signal treatment device 4 and RFID radio-frequency signal detection antenna 3, and input end is connected with the output terminal of central unit 7.Its central unit 7 is according to receiving the influence value blocking signal or pressure transducer 12, obtain oil hydraulic pump 9 to power information, this oil hydraulic pump 9 information of powering is sent to intelligent electric power management device 2, and intelligent electric power management device 2 is powered to oil hydraulic pump 9 according to this oil hydraulic pump 9 information of powering.In a kind of optimal way, for ensureing the effective control to hydraulic pipe line, in the pilot line of hydraulic jack 15, also safety valve and solenoid directional control valve are set.
In the specific implementation, above-mentioned cylinder sleeve bucket, central unit 7, hydraulic jack 15, RFID signal treatment device 4 and RFID radio-frequency signal detection antenna 3 are fixedly connected in cylinder sleeve bucket.Its cylinder sleeve bucket material of main part is stainless steel material.
Start working at rear of going into the well for making the downhole micro fluid pressure drive device in the present invention, therefore in another preferred embodiment, also comprise, infrared senor, the induction end of infrared senor is fixed on the outer wall of cylinder sleeve, output terminal is connected with the input end of central unit 7, central unit 7 is according to the influence value of the infrared senor received, obtain the power supply information of RFID signal treatment device 4 and RFID radio-frequency signal detection antenna 3, this power supply information is sent to intelligent electric power management device 2, intelligent electric power management device 2 is powered to RFID signal treatment device 4 and RFID radio-frequency signal detection antenna 3 according to this power supply information.
Above-mentioned high temperature resistant battery pack 1 is directly connected with intelligent electric power management device 2, for downhole micro fluid pressure drive device provides intelligent power supply to supply.RFID radio-frequency signal detection antenna 3 is directly connected with RFID signal treatment device 4.Central unit 7 respectively by circuit and intelligent electric power management device 2, RFID signal treatment device 4 and pressure transducer 5, and will drive and control signal by circuit transmission to hydraulic actuator 6.Hydraulic actuator 6 comprises micro direct current brushless motor 8, miniature hydraulic pump 9, Outlet check valves 10, safety valve 11, pressure transducer 12, safety check 13, miniature two-bit triplet solenoid valve 14, hydraulic jack 15, safety check 16, miniature two-bit triplet solenoid valve 17.Micro direct current brushless motor 8 directly drags miniature hydraulic pump 9 by key, miniature hydraulic pump 9 oil outlet place arranges Outlet check valves 10, the outlet of Outlet check valves 10 is connected to pressure transducer 12 by high-pressure oil passage, safety check 13, the entrance of safety check 16, the outlet of safety check 13 is connected to the 14-1 mouth of miniature two-bit triplet solenoid valve 14, the outlet of safety check 16 is connected to the 17-1 mouth of miniature two-bit triplet solenoid valve 17, the 14-3 mouth of miniature two-bit triplet solenoid valve 14 is connected to the left chamber of hydraulic jack 15, the 17-3 mouth of miniature two-bit triplet solenoid valve 17 is connected to the right chamber of hydraulic jack 15, the direct connected tank of 14-2 mouth of miniature two-bit triplet solenoid valve 14, the direct connected tank of 17-2 mouth of miniature two-bit triplet solenoid valve 17.
Composition graphs 1, Fig. 2 illustrate working procedure of the present invention: when aboveground, associated control procedures is fired in advance in each circuit board, then downhole micro fluid pressure drive device and drilling rod or oil pipe are linked together, deeply down-hole is transferred to drilling rod or oil pipe, now micro hydraulic drive system is in holding state, and central unit 7 is constantly with the signal that low power consumpting state detection RFID signal treatment device 4 and pressure transducer 5 return.When aboveground need downhole tool to perform an action time, down send high-pressure hydraulic signal by aboveground or utilize waterpower that RFID intelligent label is transported to RFID radio-frequency signal detection antenna 3 place, now pressure transducer 5 detects that pressure kick signal or RFID radio-frequency signal detection antenna 3 detect RFID intelligent label signal, and by Signal transmissions to central unit 7, then corresponding executive signal is transferred to hydraulic actuator 6 by the implication of central unit 7 representated by the program resolution place signal preset.Under original state, hydraulic actuator 6 is in outage state, the now outlet of safety check 13 is connected to the 14-1 mouth of miniature two-bit triplet solenoid valve 14, the outlet of safety check 16 is connected to the 17-1 mouth of miniature two-bit triplet solenoid valve 17, the 14-3 mouth of miniature two-bit triplet solenoid valve 14 is connected to the left end of hydraulic jack 15, the 17-3 mouth of miniature two-bit triplet solenoid valve 17 is connected to the oil end of hydraulic jack 15, the direct connected tank of 14-2 mouth of miniature two-bit triplet solenoid valve 14, the direct connected tank of 17-2 mouth of miniature two-bit triplet solenoid valve 17, hydraulic jack 15 is in shutdown packing state.When aboveground command signal requires the piston rod of hydraulic jack 15 toward left movement, central unit 7 sends command signal, start micro direct current brushless motor 8 and drive miniature hydraulic pump 9 pump oil outward, and drive miniature two-bit triplet solenoid valve 14 to be in right side station, now safety check 13 exports and is blocked, the left chamber of hydraulic jack 15 is identical with fuel tank by miniature two-bit triplet solenoid valve 14, and the high pressure oil that miniature hydraulic pump 9 pumps enters into the right side of hydraulic jack 15 by Outlet check valves 10, safety check 16, miniature two-bit triplet solenoid valve 17.Under the effect of high-voltage oil liquid, the piston rod of hydraulic jack 15 is turned left and is moved to range place, now the pressure in the right chamber of hydraulic jack 15 constantly raises until the pressure of safety valve 11 setting, now pressure transducer 12 by the pressure signal transmission that detects to main control unit 7, after main control unit 7 detects this pressure signal, hydraulic actuator 6 is shut down, now miniature hydraulic pump 9 stall, the power-off of miniature two-bit triplet solenoid valve 14, after power-off, miniature two-bit triplet solenoid valve 14 returns to left side station, the outlet of safety check 13 is connected to the 14-1 mouth of miniature two-bit triplet solenoid valve 14, hydraulic jack 15 is in shutdown packing state.When aboveground command signal require the piston rod of hydraulic jack 15 turn right motion time, central unit 7 sends command signal, start micro direct current brushless motor 8 and drive miniature hydraulic pump 9 pump oil outward, and drive miniature two-bit triplet solenoid valve 17 to be in right side station, now safety check 16 exports and is blocked, the right chamber of hydraulic jack 15 is identical with fuel tank by miniature two-bit triplet solenoid valve 17, and the high pressure oil that miniature hydraulic pump 9 pumps enters into the left chamber of hydraulic jack 15 by Outlet check valves 10, safety check 13, miniature two-bit triplet solenoid valve 14.Under the effect of high-voltage oil liquid, the piston rod of hydraulic jack 15 is turned right and is moved to range place, now the pressure in the left chamber of hydraulic jack 15 constantly raises until the pressure of safety valve 11 setting, now pressure transducer 12 by the pressure signal transmission that detects to main control unit 7, after main control unit 7 detects this pressure signal, hydraulic actuator 6 is shut down, now miniature hydraulic pump 9 stall, the power-off of miniature two-bit triplet solenoid valve 17, after power-off, miniature two-bit triplet solenoid valve 17 returns to left side station, the outlet of safety check 16 is connected to the 17-1 mouth of miniature two-bit triplet solenoid valve 17, hydraulic jack 15 is in shutdown packing state.Safety valve 11 initialization system safety pressure, after pressure exceedes setting pressure, off-load opened by safety valve 11, plays a protective role to system.In addition, when micro hydraulic drive system transfer to only need to perform fixing action after in well time, by the timing wake-up function of main control unit 7, carry out waken system and perform by setting timing the program behavior set.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to the protection domain of invention.
Claims (10)
1. downhole micro fluid pressure drive device, is characterized in that, comprising: central unit, hydraulic jack, RFID signal treatment device and RFID radio-frequency signal detection antenna; Described RFID radio-frequency signal detection antenna is connected with the input end of described RFID signal treatment device, the output terminal of described RFID signal treatment device is connected with the input end of described central unit, and the output terminal of described central unit is connected with the drive end of described hydraulic jack.
2. downhole micro fluid pressure drive device according to claim 1, is characterized in that, also comprise: oil hydraulic pump, and described oil hydraulic pump is connected with the side filler opening of described hydraulic jack.
3. downhole micro fluid pressure drive device according to claim 2, is characterized in that, also comprise: RFID radio-frequency signal detection antenna radical occlusion device, and described RFID radio-frequency signal detection antenna radical occlusion device is arranged at outside described RFID radio-frequency signal detection antenna; If described RFID radio-frequency signal detection antenna is blocked, then described RFID radio-frequency signal detection antenna produces and blocks signal, described central unit according to described in block signal acquisition hydraulic jack drive singal, this hydraulic jack drive singal is sent described oil hydraulic pump, drive described oil hydraulic pump to open or close, hydraulic jack described in hydraulic pump drive runs or stops.
4. downhole micro fluid pressure drive device according to claim 2, it is characterized in that, also comprise, pressure transducer, the induction output terminal of described pressure transducer is connected with the input end of described central unit, and described central unit obtains hydraulic jack drive singal according to the influence value of described pressure transducer, and this hydraulic jack drive singal is sent described oil hydraulic pump, drive described oil hydraulic pump to open or close, hydraulic jack described in hydraulic pump drive runs or stops.
5. downhole micro fluid pressure drive device according to claim 4, is characterized in that, also comprise: high temperature resistant battery pack and intelligent electric power management device; Described high temperature resistant battery pack is connected with the input end of intelligent electric power management device, the output terminal of described intelligent electric power management device is connected with the power input of described central unit, oil hydraulic pump, RFID signal treatment device and RFID radio-frequency signal detection antenna, and input end is connected with the output terminal of described central unit.
6. downhole micro fluid pressure drive device according to claim 5, it is characterized in that, described central unit is according to the influence value blocking signal or described pressure transducer described in receiving, obtain oil hydraulic pump to power information, this oil hydraulic pump information of powering is sent to described intelligent electric power management device, and described intelligent electric power management device is powered to described oil hydraulic pump according to this oil hydraulic pump information of powering.
7. downhole micro fluid pressure drive device according to claim 1, is characterized in that, also arranges safety valve and solenoid directional control valve in the pilot line of described hydraulic jack.
8. downhole micro fluid pressure drive device according to claim 1, is characterized in that, also comprise, cylinder sleeve bucket, and described central unit, hydraulic jack, RFID signal treatment device and RFID radio-frequency signal detection antenna are fixedly connected in described cylinder sleeve bucket.
9. downhole micro fluid pressure drive device according to claim 8, is characterized in that, described cylinder sleeve bucket material of main part is stainless steel material.
10. downhole micro fluid pressure drive device according to claim 8 or claim 9, it is characterized in that, also comprise, infrared senor, the induction end of described infrared senor is fixed on the outer wall of described cylinder sleeve, output terminal is connected with the input end of described central unit, described central unit is according to the influence value of the infrared senor received, obtain the power supply information of RFID signal treatment device and RFID radio-frequency signal detection antenna, this power supply information is sent to described intelligent electric power management device, described intelligent electric power management device is powered to described RFID signal treatment device and RFID radio-frequency signal detection antenna according to this power supply information.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410466326.3A CN104675770A (en) | 2014-09-13 | 2014-09-13 | Downhole mini hydraulic driving device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410466326.3A CN104675770A (en) | 2014-09-13 | 2014-09-13 | Downhole mini hydraulic driving device |
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| CN104675770A true CN104675770A (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410466326.3A Pending CN104675770A (en) | 2014-09-13 | 2014-09-13 | Downhole mini hydraulic driving device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106681257A (en) * | 2017-03-07 | 2017-05-17 | 四川凯创机电设备有限公司 | Oil export device based on automatic inputs |
| CN106873488A (en) * | 2017-03-07 | 2017-06-20 | 四川凯创机电设备有限公司 | By the full-automatic excavating equipment of gateway coordination data |
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| CN102839952A (en) * | 2011-06-24 | 2012-12-26 | 中国石油化工股份有限公司 | Device and method for data transmission during underground integrated communication |
| CN102865091A (en) * | 2012-09-24 | 2013-01-09 | 广州日滨科技发展有限公司 | Hydraulic support remote control method and system |
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| CN204200725U (en) * | 2014-09-13 | 2015-03-11 | 北京精密机电控制设备研究所 | Downhole micro fluid pressure drive device |
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- 2014-09-13 CN CN201410466326.3A patent/CN104675770A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102839952A (en) * | 2011-06-24 | 2012-12-26 | 中国石油化工股份有限公司 | Device and method for data transmission during underground integrated communication |
| CN102373893A (en) * | 2011-11-18 | 2012-03-14 | 郑州煤矿机械集团股份有限公司 | Electrohydraulic control system for hydraulic support in thin-seam working surface |
| CN102865091A (en) * | 2012-09-24 | 2013-01-09 | 广州日滨科技发展有限公司 | Hydraulic support remote control method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106681257A (en) * | 2017-03-07 | 2017-05-17 | 四川凯创机电设备有限公司 | Oil export device based on automatic inputs |
| CN106873488A (en) * | 2017-03-07 | 2017-06-20 | 四川凯创机电设备有限公司 | By the full-automatic excavating equipment of gateway coordination data |
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Application publication date: 20150603 |