CN102926705B - Water blocked switch device is looked in a kind of electromagnetic type down-hole - Google Patents
Water blocked switch device is looked in a kind of electromagnetic type down-hole Download PDFInfo
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- CN102926705B CN102926705B CN201210326877.0A CN201210326877A CN102926705B CN 102926705 B CN102926705 B CN 102926705B CN 201210326877 A CN201210326877 A CN 201210326877A CN 102926705 B CN102926705 B CN 102926705B
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- piston
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- control cabinet
- pipe nipple
- tube connector
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Abstract
The present invention discloses a kind of electromagnetic type down-hole and looks for water blocked switch device, be made up of tube connector, control cabinet pipe nipple, power supply, control circuit, pressure sensor, joint, piston bush, piston, one way valve, piston rod back-moving spring, piston bush bottom has piston inlet and piston liquid outlet, in the central through hole of piston bush, main electromagnet, piston, piston rod back-moving spring are from top to bottom installed successively, piston upper end is spacing ring, middle part is undergauge section, the side pipe wall of piston bush has the eccentric orfice communicated with its central through hole, is provided with stopping means at its eccentric orfice; Joint axially has conduction mouth and via hole, and conduction mouth can make tube connector and control cabinet pipe nipple inner space accept down-hole pressure signal, and via hole and control cabinet pipe nipple inner space, make drive motors system line in control cabinet pipe nipple be connected with main electromagnet.The present invention adopts solenoid actuated piston movement, simple and reliable for structure, can realize long period reliable layering and look for water-plugging technology under oil well production state.
Description
Technical field
The invention discloses a kind of electromagnetic type down-hole and look for water blocked switch device, belong to the layering of oil extraction in oil field engineering oil well and look for water blockoff corollary apparatus technical field, particularly moisture content height oil well random layer position look for water clogging tool.
Background technology
Late period of oil field, water ratio in oil well rises, and needs to close high aquifer formation, open low aquifer and produce in oil recovery process, down-hole look for water blocked switch device be arranged on down-hole string packer between, carry out separate zone water shutoff operation.The down-hole used both at home and abroad at present looks for water blocked switch type many, fixed tubular column intelligence looks for water blocked switch mainly to adopt " drive motors+drive screw+switch valve " to form, service time of battery is long, power consumption causes battery life short more, simultaneously higher to the performance requirement of drive motors heatproof, torque etc." DH intellectual contactor " that Chinese patent " ZL2007200848058.4 " is introduced is exactly one wherein, this intelligent switch can realize fixed tubular column, under production status, realize stratum open and close, but in the process of switch, higher to the performance requirement of drive motors, battery power consumption causes battery life short more simultaneously, have impact on the period of validity that whole string looks for water blocked switch tubing string.
Summary of the invention
The object of the invention is the shortcoming causing tubing string period of validity short by drive motors performance, battery loss amount to overcome the derailing switch that is made up of " drive motors+drive screw+switch valve " more, providing a kind of and under oil well production state, reliably can realize layering look for the electromagnetic type down-hole of water-plugging technology to look for water blocked switch device.
The present invention is made up of tube connector, control cabinet pipe nipple, power supply, control circuit, pressure sensor, joint, piston bush, piston, one way valve, piston rod back-moving spring, tube connector upper/lower terminal is tubing thread screw thread, tube connector bottom has central recess, its sidewall has the feed pathway be communicated with central recess, in feed pathway, one way valve is installed, the central recess of tube connector is connected with piston bush, joint and control cabinet pipe nipple in turn by screw thread; Piston bush bottom has piston inlet and piston liquid outlet, in the central through hole of piston bush, main electromagnet, piston, piston rod back-moving spring are from top to bottom installed successively, piston upper end is spacing ring, middle part is for being undergauge section, the side pipe wall of piston bush has the eccentric orfice communicated with its central through hole, is provided with stopping means at its eccentric orfice; Joint axially has conduction mouth and via hole, and conduction mouth can make tube connector and control cabinet pipe nipple inner space accept down-hole pressure signal, and via hole and control cabinet pipe nipple inner space, make control cabinet pipe nipple controlling system circuit be connected with main electromagnet.
Stopping means is made up of secondary electromagnet, gag lever post, gag lever post back-moving spring, release link, release link back-moving spring.
Beneficial functional of the present invention is: adopt solenoid actuated piston movement, and structure is simple, reliable, and switch power consumption is low, can realize long period reliable layering and look for water-plugging technology under oil well production state.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail:
See Fig. 1, the present invention is made up of tube connector 1, control cabinet pipe nipple 2, power supply 3, control circuit 4, pressure sensor 5, joint 7, piston bush 9, piston 15, one way valve 19, piston rod back-moving spring 21, tube connector 1 upper/lower terminal is tubing thread screw thread, tube connector 1 bottom has central recess, its sidewall has the feed pathway 20 be communicated with central recess, one way valve 19 is installed in feed pathway 20, the central recess of tube connector 1 is connected with piston bush 9, joint 7 and control cabinet pipe nipple 2 in turn by screw thread; Piston bush 9 bottom has piston inlet 18 and piston liquid outlet 16, in the central through hole of piston bush 9, main electromagnet 8, piston 15, piston rod back-moving spring 21 are from top to bottom installed successively, piston 15 upper end is spacing ring, middle part is for being undergauge section, the side pipe wall of piston bush 9 has the eccentric orfice communicated with its central through hole, is provided with stopping means at its eccentric orfice; Joint 7 axially has conduction mouth 6a1 and via hole 6a2, conduction mouth 6a1 can make tube connector 1 and control cabinet pipe nipple 2 inner space accept down-hole pressure signal, via hole 6a2 and control cabinet pipe nipple 2 inner space, make control cabinet pipe nipple 2 controlling system circuit be connected with main electromagnet 8.
Described stopping means is made up of secondary electromagnet 10, gag lever post 11, gag lever post back-moving spring 12, release link 13, release link back-moving spring 14.
The present invention and packer, plug, give up etc. is formed water detecting and plugging pipe column, give up after packer setting, the switch of water blocked switch device is looked for suppress number of times control well by well head in certain hour section under, when force value is in 5MPa to 10MPa scope, receive by pressure sensor 5 pulse signal that well head suppresses, undertaken identifying by control circuit 4 and control the sequential of main electromagnet 8 or secondary electromagnet 10 power on/off according to number of pulses.Receive 5 pulse signals then drive main electromagnet 8 to be energized as set 10 minutes inner control circuits 4, thus driven plunger 15 is when going upward to upper limit position, gag lever post 11 enters in piston 15 spacing ring under the effect of gag lever post back-moving spring 12, main electromagnet 8 power-off, piston inlet 18 is closed by piston 15; 8 signals are received in 10 minutes, then drive that secondary electromagnetism 10 is energized, release link 13 under magneticaction on move, drive the eccentric orfice on the side pipe wall of gag lever post 11 retraction piston bush 9, after piston 15 goes downwards to lower position under piston rod back-moving spring 21 acts on, secondary electromagnet 10 power-off, piston inlet 18 is communicated with by plug sleeve annular space 17 with piston liquid outlet 16.By " suppress-pressure release-suppress-pressure release ... " transmitting pulse signal, control main electromagnet 8 and secondary electromagnet 10 are energized and conduction time, and conduction time, according to theory calculate and test setting, guarantees the opening and closing of switch.
Claims (2)
1. water blocked switch device is looked in an electromagnetic type down-hole, by tube connector (1), control cabinet pipe nipple (2), power supply (3), control circuit (4), pressure sensor (5), joint (7), piston bush (9), piston (15), one way valve (19) forms, on tube connector (1), lower two ends are tubing thread screw thread, tube connector (1) bottom has central recess, the central recess of tube connector (1) is connected with piston bush (9) in turn by screw thread, joint (7) and control cabinet pipe nipple (2), it is characterized in that: the sidewall of tube connector (1) has the radial feed pathway (20) be communicated with its central recess, one way valve (19) is installed in feed pathway (20), piston bush (9) bottom has piston inlet (18) and piston liquid outlet (16), main electromagnet (8), piston (15), piston rod back-moving spring (21) are from top to bottom installed in the central through hole of piston bush (9) successively, piston (15) upper end is spacing ring, middle part is undergauge section, the side pipe wall of piston bush (9) has the eccentric orfice communicated with its central through hole, in its eccentric orfice, be provided with stopping means, joint (7) is upper axially has conduction mouth (6a1) and via hole (6a2), conduction mouth (6a1) can make tube connector (1) and control cabinet pipe nipple (2) inner space, via hole (6a2) and control cabinet pipe nipple (2) inner space, control cabinet pipe nipple (2) controlling system circuit is connected with main electromagnet (8).
2. water blocked switch device is looked in a kind of electromagnetic type down-hole as claimed in claim 1, it is characterized in that: stopping means is made up of secondary electromagnet (10), gag lever post (11), gag lever post back-moving spring (12), release link (13), release link back-moving spring (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210326877.0A CN102926705B (en) | 2012-09-06 | 2012-09-06 | Water blocked switch device is looked in a kind of electromagnetic type down-hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210326877.0A CN102926705B (en) | 2012-09-06 | 2012-09-06 | Water blocked switch device is looked in a kind of electromagnetic type down-hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102926705A CN102926705A (en) | 2013-02-13 |
| CN102926705B true CN102926705B (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210326877.0A Active CN102926705B (en) | 2012-09-06 | 2012-09-06 | Water blocked switch device is looked in a kind of electromagnetic type down-hole |
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| CN (1) | CN102926705B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064983A (en) * | 2015-06-04 | 2015-11-18 | 中国石油化工股份有限公司 | Underground wireless pressure measurement system, pressure measurement electric switchgear thereof and data collection transceiver |
| CN111980626B (en) * | 2019-05-24 | 2022-10-18 | 中国石油化工股份有限公司 | Underground switch for finding water blockage |
| CN113090226B (en) * | 2019-12-23 | 2023-02-28 | 中国石油天然气股份有限公司 | Bridge plug control switch |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2258556Y (en) * | 1996-03-02 | 1997-07-30 | 孙昌清 | Energy-saving electromagnetic valve |
| WO2004099558A2 (en) * | 2003-05-12 | 2004-11-18 | Stellar Tech Energy Services Inc. | Downhole shut-in tool |
| CN2854065Y (en) * | 2005-10-12 | 2007-01-03 | 陆华飞 | Hydraulic control water plugging switching device |
| CN201037398Y (en) * | 2007-05-21 | 2008-03-19 | 中国石油化工股份有限公司 | Down-hole intelligence switch |
| CN202866753U (en) * | 2012-09-06 | 2013-04-10 | 中国石油化工股份有限公司 | Electromagnetic type switch device for finding water shutoff under shaft |
-
2012
- 2012-09-06 CN CN201210326877.0A patent/CN102926705B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2258556Y (en) * | 1996-03-02 | 1997-07-30 | 孙昌清 | Energy-saving electromagnetic valve |
| WO2004099558A2 (en) * | 2003-05-12 | 2004-11-18 | Stellar Tech Energy Services Inc. | Downhole shut-in tool |
| CN2854065Y (en) * | 2005-10-12 | 2007-01-03 | 陆华飞 | Hydraulic control water plugging switching device |
| CN201037398Y (en) * | 2007-05-21 | 2008-03-19 | 中国石油化工股份有限公司 | Down-hole intelligence switch |
| CN202866753U (en) * | 2012-09-06 | 2013-04-10 | 中国石油化工股份有限公司 | Electromagnetic type switch device for finding water shutoff under shaft |
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| Publication number | Publication date |
|---|---|
| CN102926705A (en) | 2013-02-13 |
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