CN203175478U - Underground intelligent rubber plug apparatus - Google Patents
Underground intelligent rubber plug apparatus Download PDFInfo
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- CN203175478U CN203175478U CN 201220577379 CN201220577379U CN203175478U CN 203175478 U CN203175478 U CN 203175478U CN 201220577379 CN201220577379 CN 201220577379 CN 201220577379 U CN201220577379 U CN 201220577379U CN 203175478 U CN203175478 U CN 203175478U
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Abstract
Provided is an underground intelligent rubber plug apparatus, which relates to the field of cementing units in petroleum engineering, and comprises a high pressure sealing drum. The underground intelligent rubber plug apparatus is characterized in that the high pressure sealing drum is provided with a motor cabin; the motor cabin is provided with a seven-stage gear motor; one end of the seven-stage gear motor is connected to a four-head trapezoid-shaped buckle leading screw by a motor coupling, and is connected to a center pin through a sealed bearing; the center pin is provided with a first-stage sealing rubber body, a first-stage lotus sheet which is fixed by a positioning ring, and a first-stage gland at the top end in order. When the intelligent control circuit in the high pressure sealing drum is started, and a work program control switch disposed on a control assembly is started, the seven-stage gear motor in the motor cabin conducts a positive rotation, driving the four-head trapezoid-shaped buckle leading screw to move downwardly. The first-stage gland moves downwardly to enter in the first-stage sealing rubber body, and the first-stage lotus sheet on the first-stage sealing rubber body is compressed and deformed and expanded, and a first-stage spacing ring controls the size of the deformation and expansion. When the intelligent control circuit and the control assembly starts the seven-stage gear motor in the motor cabin within a set time based on a work program to conduct negative rotation, the four-head trapezoid-shaped buckle leading screw is driven to move upwardly. The first-stage gland moves upwardly, disengaging from the first-stage sealing rubber body. The first-stage lotus sheet loses pressure contraction, enabling the first-stage sealing rubber body to conduct reducing contraction. The underground intelligent rubber plug apparatus returns to a normal state. The sealing rubber body, the lotus sheet and the gland can be of first stage or of multiple stages. The underground intelligent rubber plug apparatus is advantageous in that the structure is novel and reasonable; in a cementing construction process, the first-stage and the second-stage sealing rubber body conduct deformation of a certain degree in a direction vertical to a borehole wall under the effect of quite a large construction pressure; the deformation further reinforces the contact degree of the first-stage and the second-stage sealing rubber body with a casing wall, and drilling fluid in the casing can be effectively separated from clean water and be sealed; blending of the clear water and the drilling fluid can be prevented in the construction process, and resistance of delayed sound change can be reduced.
Description
Affiliated technical field
The utility model relates to cementing equipment field in the petroleum works, especially a kind of downhole intelligent plug device.
Background technology
Existing conventional cementing plug technology, be after having annotated when whole cement pastes, the moulding plug, it is along with cement paste is descending, is used for scraping to stick to cement paste on the internal surface of sleeve pipe, and prevent that the displacement drilling fluid from mixing with cement paste, avoid the afterbody cement paste to pollute, guarantee the bottom water quality of mud fluid, when reaching spoiler, show bruising, then cementing finishes.The shortcoming of conventional cementing plug is: must rely on extraneous liquid displacement ability descending, itself can't realize certainly drop down.
A kind of application suspension insulating liquid replacement technology is arranged again: suspension insulating liquid, suspension insulating liquid have good and good with clear water and the drilling fluid compatibility performance of suspension.Well cementation displacement fluid technical scheme is: once replace and adopt suspension insulating liquid+drilling fluid, secondary to replace the employing clear water.In the displacement process, replace one section suspension insulating liquid (suspension insulating liquid design flow is from 80 meters sleeve pipe internal volumes to float collar more than the instrument) earlier, replace drilling fluid to bruising again, after once the replacement construction was finished, liquid in pipe was suspension insulating liquid and drilling fluid.Secondary replaces and uses clear water that drilling fluid is pushed up to casing annulus, guarantees that the casing annulus pressure is steady, and the borehole wall does not collapse.But the technical scheme existence that is to use the suspension insulating liquid is closed ball and can't be suspended, the defective of clear water and drilling fluid displacement precipitation effect, owing to can't realize that clear water replaces in the displacement process and close ball and displacement fluid is asynchronous, to be detained drilling fluid in the sleeve pipe, because the multiviscosisty deposition characteristics when drilling fluid does not flow, part well time-delay survey sound occurred and have become the phenomenon that is hampered.
Summary of the invention
The purpose of this utility model is the defective at above-mentioned prior art, adopt new technical scheme to design a kind of downhole intelligent plug device of novelty, comprise the high pressure sealing tube, in the high pressure sealing tube, be provided with motor room, one end and the electric machine support of motor room link, the other end of motor room and intelligence control circuit, Control Component, the high-performance lithium battery connects, seven grades of reducing motors are housed in the motor room, one end of seven grades of reducing motors is connected with four-head trapezoid buckle leading screw by the motor shaft coupling, connect central axis by sealed bearing, be provided with the primary seal rubber bodies on the central axis in regular turn, the one-level Flos Nelumbinis tablet, fixed by locating ring, the top is the one-level gland, in the high pressure sealing tube, start intelligence control circuit, the working programme gauge tap of setting on the Control Component, seven grades of reducing motors in the motor room just change, it is descending to drive four-head trapezoid buckle leading screw, be advanced into the primary seal rubber bodies under the one-level gland, one-level Flos Nelumbinis tablet compressive deformation on the primary seal rubber bodies expands, one-level spacing ring control distortion dilation dimension; Seven grades of reducing motor counter-rotatings in starter motor cabin in the time that intelligence control circuit, Control Component are being set according to working programme, it is up to drive four-head trapezoid buckle leading screw, the up disengaging primary seal of one-level gland rubber bodies, the one-level Flos Nelumbinis tablet loses pressure and shrinks, primary seal rubber bodies reducing is shunk, downhole intelligent plug device recovers normal condition, and described caulking gum body, Flos Nelumbinis tablet and gland can be one-levels, also can be multistage.Downhole intelligent plug device has good gas-liquid barrier, and the accurate controllability that expands and shrink, after being used for using the cementing operation one of cement face control tool to finish for construction, the utility model downhole intelligent plug device (being in swelling state) of packing into, ball is closed in throwing, carrying out secondary replaces, can make and close ball and the synchronous operation of secondary displacement fluid, effectively the drilling fluid in the sleeve pipe is separated with clear water, sealing, after realizing that well cementing operation is finished, the downhole intelligent plug device that is in swelling state shrank in the time of setting, external diameter is less than casing inner diameter, rely on self gravitation to fall the artificial bottom of a well, be full of clear water in the pipe thereby reach, avoid time-delay sound to become the generation that is hampered.
The utility model is achieved by the following technical solution, and the utility model is made up of two big parts: driver part and workpiece, driver part comprise high pressure sealing tube, high pressure sealing cylinder base, joint ring, seal receptacle, seal.Be provided with high pressure sealing tube loam cake in the upper part of high pressure sealing tube, joint ring, cover in the loam cake, in the high pressure sealing tube, be provided with motor room, one end and the electric machine support of motor room link, the other end of motor room and intelligence control circuit, Control Component, the high-performance lithium battery connects, seven grades of reducing motors are housed in the motor room, one end of seven grades of reducing motors is connected with four-head trapezoid buckle leading screw by the motor shaft coupling, connect central axis by sealed bearing, the other end of seven grades of reducing motors and intelligence control circuit, Control Component connects, Control Component is provided with the working programme of seven grades of reducing motor runnings of instruction, and the high-performance lithium battery provides seven grades of reducing motor work energy.Workpiece comprises the four-head trapezoid buckle leading screw that connects on the driver part, the secondary seal rubber bodies, secondary Flos Nelumbinis tablet and primary seal rubber bodies, one-level Flos Nelumbinis tablet and central axis, arrange in regular turn from four-head trapezoid buckle leading screw on the central axis and be respectively equipped with the secondary seal rubber bodies, the secondary Flos Nelumbinis tablet, secondary is spacing, the secondary gland, locating ring, the height adjustable ring, the primary seal rubber bodies, one-level is spacing, the one-level Flos Nelumbinis tablet, one, secondary Flos Nelumbinis tablet and one, be respectively equipped with pressure compensation opening on the secondary gland, locating ring is used for the fixing seal rubber bodies, prevents that each parts from sliding at central axis.Operating principle of the present utility model is achieved in that the downhole intelligent plug device that is in normal condition is retracted configuration, before going into the well, start the working programme gauge tap of setting on intelligence control circuit, the Control Component in the high pressure sealing tube, seven grades of reducing motors in the motor room just change, it is descending to drive four-head trapezoid buckle leading screw, be advanced into I and II caulking gum body under the I and II gland, I and II Flos Nelumbinis tablet compressive deformation on the caulking gum body expands, by I and II spacing ring control distortion dilation dimension.After the once replacement of cementing the well is constructed and is finished, the intelligent plug device (being in swelling state) of drowning oneself in a well down, ball is closed in throwing, carry out secondary for clear water and replace, the utility model is along with drilling fluid is descending, is used for scraping to stick to drilling fluid on the internal surface of sleeve pipe, and prevent displacement clear water and drilling fluid mixed, after downhole intelligent plug device reaches cement face control tool, block circulation port by closing ball, boost in the pipe and close cement face control tool.Downhole intelligent plug device (being in swelling state) Control Component is according to the working programme of setting seven grades of reducing motor counter-rotatings in the starter motor cabin in the time of setting, it is up to drive four-head trapezoid buckle leading screw, the up I and II that takes off of I and II gland is from the caulking gum body, the I and II Flos Nelumbinis tablet loses pressure and shrinks, caulking gum body reducing is shunk, downhole intelligent plug device recovers normal condition, rely on self gravitation to fall the artificial bottom of a well, reach and be full of clear water in the pipe, avoid time-delay sound to become the generation that is hampered.Caulking gum body described in the utility model, Flos Nelumbinis tablet and gland can be one-levels, also can be multistage.
The beneficial effects of the utility model are: novel and reasonable structure, I and II caulking gum body is under higher operation pressure effect in the work progress in the well cementation process behind installation the utility model, in vertical borehole wall direction generation deformation to a certain degree, the exposure level of I and II caulking gum body with casing wall further strengthened in this deformation simultaneously, effectively the drilling fluid in the sleeve pipe is separated, sealed with clear water, thereby guarantee in the work progress, blending between clear water and the drilling fluid is avoided, and has reduced time-delay sound and has become the generation that is hampered.
Description of drawings
Accompanying drawing 1 is generalized section of the present utility model.
(1) one-level gland wherein, (2) central axis, (3) locating ring, (4) height adjustable ring, (5) four-head trapezoid buckle leading screw, (6) motor shaft coupling, (7) seven grades of reducing motors, (8) intelligence control circuit, (9) Control Component, (10) seal receptacle, (11) high pressure sealing cylinder base, (12) high pressure sealing tube, (13) high-performance lithium battery, (14) motor room, (15) electric machine support, (16) sealed bearing, (17) high pressure sealing tube loam cake, (18) cover in the loam cake, (19) secondary seal rubber bodies, (20) secondary Flos Nelumbinis tablet, (21) secondary is spacing, (22) secondary gland, (23) primary seal rubber bodies, (24) one-level is spacing, (25) one-level Flos Nelumbinis tablet, (A) joint ring, (B) pressure compensation opening.
The specific embodiment
Embodiment of the present utility model is further described by reference to the accompanying drawings:
As shown in drawings, the utility model is made up of two big parts: driver part and workpiece, driver part comprises high pressure sealing tube (12), high pressure sealing cylinder base (11), joint ring (A), seal receptacle (10), be provided with high pressure sealing tube loam cake (17) in the upper part of high pressure sealing tube (12), joint ring (A), cover (18) in the loam cake, in high pressure sealing tube (12), be provided with motor room (14), one end of motor room (14) links with electric machine support (15), the other end of motor room (14) and intelligence control circuit (8), Control Component (9), the high-performance lithium battery connects (13), seven grades of reducing motors (7) are housed in the motor room (14), the one end warp of seven grades of reducing motors (7) is in motor shaft coupling (6), sealed bearing (16) is connected with four-head trapezoid buckle leading screw (5), the other end of seven grades of reducing motors (7) is connected with intelligence control circuit (8) Control Component (9), Control Component (9) is provided with the working programme of seven grades of reducing motors of instruction (7) running, and high-performance lithium battery (13) provides seven grades of reducing motors (7) work energy.Workpiece comprises the four-head trapezoid buckle leading screw (5) that connects on the driver part, secondary seal rubber bodies (19), secondary Flos Nelumbinis tablet (20) and primary seal rubber bodies (23), one-level Flos Nelumbinis tablet (25) and central axis (2), central axis (2) is upward arranged in regular turn from four-head trapezoid buckle leading screw (5) and is respectively equipped with secondary seal rubber bodies (19), secondary Flos Nelumbinis tablet (20), secondary spacing (21), secondary gland (22), locating ring (3), height adjustable ring (4), primary seal rubber bodies (23), one-level spacing (24), one-level Flos Nelumbinis tablet (25), one, secondary Flos Nelumbinis tablet (25), (20) and one, secondary gland (1), (22) be respectively equipped with pressure compensation opening (B) on, locating ring (3) is used for fixedly primary seal rubber bodies (23), prevents that each parts from sliding at central axis (2).Control Component (9) in the high pressure sealing tube (12) of the utility model downhole intelligent plug device is by accurately control of intelligence control circuit (8), in the time of appointment, it is descending that seven grades of reducing motors (7) rotate and reverse drive four-head trapezoid buckle leading screw (5), last enforcement one, secondary gland (1), (22) be advanced into one under, secondary seal rubber bodies (23), (19) and one, secondary gland (1), (22) up disengaging one, secondary seal rubber bodies (23), (19), cause one, secondary seal rubber bodies (23), (19) compressive deformation expansion and, secondary seal rubber bodies (23), (19) decompression is shunk, and realizes expanding and shrinking accurately controlled.
After in the well cementation process the utility model being installed, downhole intelligent plug device is being used the field trial that 6 mouthfuls of wells have been carried out in the cementing operation of cement face control tool, and time-delay sound becomes 6 mouthfuls of wells of detection, the Jing0Kou that is hampered, and rate 0% is hampered.With compare the rate that is hampered with the non-test well of block and improved 24.72 percentage points.Field trial shows: two is consistent for amount with reality for amount for design, guarantees to close ball and the synchronous operation of secondary displacement fluid, avoids delay drilling fluid in the sleeve pipe.
Embodiment one: apricot 3-fourth 4-E68 well
This well design well depth: 1239 meters, cement face control tool position: 894 meters.Application on September 16th, 2012 downhole intelligent plug device carries out cementing operation, and two for designing for amount: 11.4 sides, two replace the actual amount of replacing: 11.4 sides.Carried out sound on October 7th, 2012 and become detection, well logging is success once.
This well two is for designing for measuring with actual for measuring consistent showing, downhole intelligent plug device rubber bodies is with the exposure level height of casing wall, effectively the drilling fluid in the sleeve pipe is separated, sealed with clear water, guarantee to close ball and the synchronous operation of secondary displacement fluid, avoid being detained in the sleeve pipe drilling fluid.Sound became well logging and show successfully that once downhole intelligent plug device can shrink in the time of appointment, relied on self gravitation to fall the artificial bottom of a well, and follow-up construction is not caused any adverse effect.
Embodiment two: apricot 3-40-E66 well
This well design well depth: 1241 meters, cement face control tool position: 894 meters.Application on September 23rd, 2012 downhole intelligent plug device carries out cementing operation, and two for designing for amount: 11.4 sides, two replace the actual amount of replacing: 11.4 sides.Carried out sound on October 9th, 2012 and become detection, well logging is success once.
This well two is for designing for measuring with actual for measuring consistent showing, downhole intelligent plug device rubber bodies is with the exposure level height of casing wall, effectively the drilling fluid in the sleeve pipe is separated, sealed with clear water, guarantee to close ball and the synchronous operation of secondary displacement fluid, avoid being detained in the sleeve pipe drilling fluid.Sound became well logging and show successfully that once downhole intelligent plug device can shrink in the time of appointment, relied on self gravitation to fall the artificial bottom of a well, and follow-up construction is not caused any adverse effect.
Claims (1)
1. downhole intelligent plug device, comprise the high pressure sealing tube, it is characterized in that: in the high pressure sealing tube, be provided with motor room, seven grades of reducing motors are housed in the motor room, one end of seven grades of reducing motors is connected with four-head trapezoid buckle leading screw by the motor shaft coupling, connect central axis by sealed bearing, be provided with the primary seal rubber bodies on the central axis in regular turn, the one-level Flos Nelumbinis tablet is fixed by locating ring, the top is the one-level gland, in the high pressure sealing tube, start intelligence control circuit, the working programme gauge tap of setting on the Control Component, seven grades of reducing motors in the motor room just change, it is descending to drive four-head trapezoid buckle leading screw, be advanced into the primary seal rubber bodies under the one-level gland, one-level Flos Nelumbinis tablet compressive deformation on the primary seal rubber bodies expands, one-level spacing ring control distortion dilation dimension; Seven grades of reducing motor counter-rotatings in starter motor cabin in the time that intelligence control circuit, Control Component are being set according to working programme, it is up to drive four-head trapezoid buckle leading screw, the up disengaging primary seal of one-level gland rubber bodies, the one-level Flos Nelumbinis tablet loses pressure and shrinks, primary seal rubber bodies reducing is shunk, downhole intelligent plug device recovers normal condition, and described caulking gum body, Flos Nelumbinis tablet and gland can be one-levels, also can be multistage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220577379 CN203175478U (en) | 2012-11-05 | 2012-11-05 | Underground intelligent rubber plug apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220577379 CN203175478U (en) | 2012-11-05 | 2012-11-05 | Underground intelligent rubber plug apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203175478U true CN203175478U (en) | 2013-09-04 |
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ID=49072193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220577379 Expired - Lifetime CN203175478U (en) | 2012-11-05 | 2012-11-05 | Underground intelligent rubber plug apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203175478U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452526A (en) * | 2013-09-13 | 2013-12-18 | 中国石油集团西部钻探工程有限公司 | Electro-hydraulic bridge plug setting device |
| CN103556970A (en) * | 2013-11-08 | 2014-02-05 | 西安航威石化设备有限公司 | Combined self-lock rubber plug |
| CN103790550A (en) * | 2012-11-05 | 2014-05-14 | 王震 | Intelligent downhole plug device |
-
2012
- 2012-11-05 CN CN 201220577379 patent/CN203175478U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790550A (en) * | 2012-11-05 | 2014-05-14 | 王震 | Intelligent downhole plug device |
| CN103452526A (en) * | 2013-09-13 | 2013-12-18 | 中国石油集团西部钻探工程有限公司 | Electro-hydraulic bridge plug setting device |
| CN103452526B (en) * | 2013-09-13 | 2016-06-01 | 中国石油集团西部钻探工程有限公司 | Electric hydaulic bridging plug seating and sealing unit |
| CN103556970A (en) * | 2013-11-08 | 2014-02-05 | 西安航威石化设备有限公司 | Combined self-lock rubber plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |
|
| CX01 | Expiry of patent term |