CN105525892A - Casing pipe vibrating device - Google Patents
Casing pipe vibrating device Download PDFInfo
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- CN105525892A CN105525892A CN201410505762.7A CN201410505762A CN105525892A CN 105525892 A CN105525892 A CN 105525892A CN 201410505762 A CN201410505762 A CN 201410505762A CN 105525892 A CN105525892 A CN 105525892A
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- vibrator
- vibrating device
- sleeve pipe
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Abstract
The invention discloses a casing pipe vibrating device and relates to the field of vibrating cementing. A vibrator is connected to a roller located on the ground through a cable. The vibrator is provided with a sealed tubular shell. A battery, a motor and an eccentric block are arranged in the shell. The battery is connected with the motor through a wire. The eccentric block is fixedly connected with a rotor of the motor. The eccentric block is installed in the shell through a bearing. The casing pipe vibrating device further comprises a pulley. The cable penetrates the pulley to be wound on the roller. The casing pipe vibrating device releases vibration waves in a casing pipe in the process of waiting for cement setting under the condition that a conventional cementing technology is not affected, vibrating is conducted on annular cement slurry, the rheological property of the cement slurry is improved, and the cementing quality of cement is improved. The casing pipe vibrating device has the beneficial effects of being easy to form, convenient to operate and capable of being repeatedly used.
Description
Technical field
The present invention relates to oil drilling, cementing unit technical field, especially a kind of sleeve pipe vibrating device.
Background technology
When utilizing the annular space of the cement packing oil gas borehole wall and sleeve pipe, vibration is carried out to sleeve pipe and cement paste and can improve Behavior of Hardened Cement Paste contraction, reduce hole and formed, improve Behavior of Hardened Cement Paste self and first, second interface cementing strength, and then improve cementing quality.
Existing vibration cementing device comprises following several: (1) bottom hydraulic pulsed vibrator or followed vibration well cementation method, produce impulse oscillation in displacement process, finally rest on sleeve bottom, cannot reclaim, and can affect follow-up spudding in; And vibrate the degree of depth and fix after replacing, cannot adjust again.(2) well head vibrator, is arranged on cannula tip, sends mechanical oscillation.Because riding position is at well head, it is large that underground vibrating effect affects decay by transmission range.
Summary of the invention
The object of this invention is to provide a kind of sleeve pipe vibrating device, vibration is implemented to annular space cement paste.Sleeve pipe vibrating device provided by the invention overcomes the deficiencies in the prior art, achieve when not affecting conventional cementing technique, wait in solidifying process by transmitting vibrations ripple and the cement paste applying vibration of mode to annular space of knocking sleeve pipe at cement, improve cement paste rheological behavior, improve Behavior of Hardened Cement Paste sealing quality.The present invention can walk limit vibration sleeve pipe and transmitting vibrations ripple at full-sleeve scope inner edge, can construct easily and reclaim.
In order to solve above technical problem, the present invention is realized by mode by the following technical solutions:
A kind of sleeve pipe vibrating device, vibrator connects the cylinder being positioned at ground by hawser; The Packed tube-like envelope of vibration apparatus; Enclosure has battery, motor and eccentric block, and battery connects motor by wire, and eccentric block is fixedly connected with the rotor of motor, and eccentric block is arranged on enclosure by bearing.Sleeve pipe vibrating device also comprises pulley; Hawser is wrapped on cylinder through pulley.
Also have controller in shell, controller is serially connected on the wire between battery and motor; Controller has delay switch function and resistance-type speed-regulating switch.
Vibrator bottom outer surface radial direction is provided with snubber block.Snubber block is quality of rubber materials, inlays or sulfuration is fixed on outer surface of outer cover, and quantity is 3-8.Vibrator is connected with hawser by joint; Upper end of joint and hawser are connected, and lower end is connected with shell by screw thread.Multiple vibrator that hawser connects is had in controller; Be connected with joint by hawser between vibrator.
With sleeve pipe resonator of the prior art with vibrate plug and compare, apparatus of the present invention have following advantage:
(1) any degree of depth can vibrate in cover scope tube, realize hover point and shake or walk while shake;
(2) implements to vibrate for the slurry complete Hou Ning stage at cement paste, can control before oscillator is vibrated to cement paste initial set always;
(3) vibrate complete recovery, whole device can reuse, and running cost is little;
(4) do not affect conventional cementing technique, do not affect after vibration cementing terminates yet and continue to spud in sleeve pipe.
(5) adopt internal battery to be eccentric block load supplying, connect electricity without the need to well site, simplify equipment and program, shorten well head time.
(6) due to without the need to adopt cable pass high-tension electricity, compared with well logging winch and cable, the cable diameter in this device significantly reduces, and decreases the volume of cylinder and supporting winch simultaneously.
(7) vibrator series connection is multiple enters well together, expands oscillating region.
Accompanying drawing explanation
Fig. 1 is the structural representation of sleeve pipe vibrating device of the present invention.
Fig. 2 is vibrator structure schematic diagram of the present invention.
Mark in figure:
1, pulley, 2, sleeve pipe, 3, vibrator, 4, hawser, 5, cylinder, 6, top connection, 7, battery, 8, motor, 9, eccentric block, 10, snubber block, 11. shells, 12, controller, 13, bearing, 14, lower contact.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Embodiment 1
With reference to Figure of description 1, the formation of sleeve pipe vibrating device of the present invention is: on ground, and hawser 4 is wrapped on cylinder 5, and cylinder 5 is driven by supporting hydraulic pressure or electric winch.At well head, hawser 4 is through pulley 1.In down-hole, hawser 4 is connected to the vibrator 3 in sleeve pipe 2.Hawser 4 is the wirerope of the reverse layout of inside and outside bilayer, only bears pulling force, inner without wire.
With reference to Figure of description 2, oscillator 5 has tubular steel shell 11, and shell 11 upper end is threaded connection joint 6, and joint 6 and cable adopt rivets or welding manner is fixedly connected with.
Be serially connected in battery and the supply line between 7 and motor 8 in shell 11 internal controller 12, control start and stop and the rotating speed of motor 8.There is delay switch in controller 12, control motor by setting delay duration and when start and stop.Controller 12 also controls the supply current of motor 8 by resistance-type pressure regulator, realize the control to motor 12 rotating speed.Eccentric block 9 adopts flange or keyway to be connected with the rotor of motor 8.Eccentric block 16 cross section is fan-shaped eccentrical shape, adopts steel design, and it is inner that eccentric block 16 is arranged on shell 11 by bearing 13.
Metal bump directly occurs for shell 11 and sleeve pipe 2 can cause motor 13 electric current to raise suddenly and suppress turning, the attenuating of eccentric block 16 rotating speed.Evenly inlay 4 snubber blocks 10 in shell 11 bottom outer surface circumference, inlay shell 11 external diameter after snubber block 10 and be less than sleeve pipe 2 internal diameter.Snubber block 10 is quality of rubber materials, inlays or sulfuration is fixed on outer surface of outer cover.
With reference to Figure of description 1, sleeve pipe vibrating device of the present invention, after cement paste is for the complete cementing head of dismantling of slurry, implements vibration service in the following way:
(1) first, determine the initial setting time t0 of cement paste, recording and mixing the time of starching to cementing head of dismantling from cement paste is t1; Unload lower contact 6 from shell 11, carry out time delay setting to controller 12, after setup times t2, starter motor 8, t2 is set to 10 minutes, and t2 is that vibrator 3 prepares at well head and transfers the time; Setting t3 rear motor 8 stops, and t3≤t0-t1-t2.
(2) then, calculate sleeve pipe intrinsic frequency according to casing programme, casing size and length gauge, and the rotating speed adjusting controller 12 pairs of motors 8 adjusts, the rotating speed of motor 8 is equaled or close to the intrinsic frequency of sleeve pipe.
(3) then, jointing 6 and shell 11, enter vibrator for 3 times in sleeve pipe 2, arrives designated depth; Controller 12 is after time of advent t2, and starter motor 8, vibrator 3 starts vibration.
(4) more then, by the folding and unfolding of index drum 5, control vibrator 3 hover point in sleeve pipe and shake or shake while move; The vibration of vibrator 3 can cause casing resonant, discharging vibration wave towards periphery, acting on to waiting solidifying cement paste in annular space while vibration casing wall; Mode of vibration can be specially hovering vibration two minutes again moves two meters hovers, or shakes while move up and down with one meter of speed per minute; The time that oscillator stops vibration at a place is less than 9 minutes, oozes out water layer to avoid cement paste.
(5) last, when the time arrives t3, controller 12 controls motor 8 to be stopped, and before cement paste starts initial set, vibration terminates, and trips out vibrator 3.
With the sleeve pipe resonator used when replacing cement paste with vibrate plug and compare, vibrator 3 of the present invention is implemented in 3 ~ 5 hours of cement paste Hou Ning after cementing head of dismantling, do not affect conventional cementing technique, after vibration, recovery does not have any instrument and is trapped in shaft bottom, does not affect and continues to spud in.Vibration well depth can be realized adjustable, can hover and also can walk while shake; Control vibration frequency by the rotating speed adjusting motor 8, send the vibration wave close with sleeve pipe 2 intrinsic frequency, cause casing resonant, realize vibration efficiency and maximize.Battery 7 of the present invention is rechargeable battery, is easy to safeguard and dismounting.Due to without the need to surface power supply equipment, simplify preparation, and compare well logging cable, the diameter of hawser 4 significantly reduces.
Embodiment 2
With reference to accompanying drawing 2, on the basis of embodiment 1, hawser 4 is connected in series two vibrators 3, and vibrator 3 bottom of top is provided with the lower contact 14 be threaded connection with shell 11 lower end, is connected between upper and lower two vibrators 3 by top connection 6, lower contact 14 with hawser.Therewith in like manner, hawser 4 can be connected in series the vibrator 3 of more than 2, vibration effect scope can be expanded, wait in the finite time before coagulating at cement paste and vibrate more well section.
Object controller 12 being set to start-up time delay t2 is: can reduce when vibrator 3 enters well like this and the collision of casing wall, keep higher lowering velocity, can avoid again the just vibration when well head assembles, waste of energy in the non-object well section of top.Especially, when hawser 4 is connected in series multiple vibrator 3, frictional force can be caused to enlarge markedly with the collision of casing wall, affect lowering velocity.
Embodiment 3
The device of Application Example 1 and process, implement vibration to the sleeve pipe after the well cementation of certain well.Well depth 2000m, casing inner diameter 159mm, cement slurry density 1.9g/cm
3, cement paste initial setting time 150min.
(1) determine the initial setting time t0=150min of cement paste, recording and mixing the time of starching to cementing head of dismantling from cement paste is t1=80; Unload lower contact 6 from shell 11, time delay setting is carried out to controller 12, starter motor 8 after setup times t2=10min; Disable motor 8 after setting t3≤t0-t1-t2=60min.
(2) calculate sleeve pipe intrinsic frequency according to casing programme, casing size and length gauge, and the rotating speed adjusting controller 12 pairs of motors 8 adjusts, the rotating speed of motor 8 is equaled or close to the intrinsic frequency of sleeve pipe.
(3) jointing 6 and shell 11, enter vibrator for 3 times in sleeve pipe 2, arrives designated depth; Controller 12 is after time of advent t2=10, and starter motor 8, vibrator 3 starts vibration.
(4) control vibrator 3 to shake while move up and down with one meter of speed per minute.
(5) when the time arrives t3=60min, motor 8 stops, and trip out vibrator 3, actual vibration continues duration 60min, vibration well segment length 60m.
Embodiment 4
Compared with embodiment 1, in vibrator 3, there is no controller 12, adopt following processing step:
(1) first, determine the initial setting time t0 of cement paste, and start timing.
(2) then, jointing 6 and shell 11, enter vibrator for 3 times in sleeve pipe 2, arrives designated depth.
(3) more then, by the folding and unfolding of index drum 5, control vibrator 3 hover point in sleeve pipe and shake or shake while move; The vibration of vibrator 3 can cause casing resonant, discharging vibration wave towards periphery, acting on to waiting solidifying cement paste in annular space while vibration casing wall; Mode of vibration can be specially hovering vibration two minutes again moves two meters hovers, or shakes while move up and down with one meter of speed per minute; The time that oscillator stops vibration at a place is less than 9 minutes, oozes out water layer to avoid cement paste.
(4) last, when arriving t0 when amounting to, trip out vibrator 3, vibration terminates.
Claims (6)
1. a sleeve pipe vibrating device, is characterized in that vibrator (3) is connected to cylinder (5) by hawser (4) and pulley (1); The Packed tube-like envelope of vibrator (3) tool (11); There are battery (7), motor (8) and eccentric block (9) in shell (11) inside, battery (7) connects motor (8) by wire, eccentric block (9) is fixedly connected with the rotor of motor (8), and it is inner that eccentric block (16) is arranged on shell (11) by bearing (13).
2. sleeve pipe vibrating device according to claim 1, it is characterized in that: also have controller (12) in described shell (11), controller (12) is serially connected on the wire between battery (7) and motor (8); Controller (12) has delay switch circuit.
3. sleeve pipe vibrating device according to claim 2, is characterized in that: described controller has resistance-type speed-regulating switch in (12).
4. the sleeve pipe vibrating device according to claim 1 or 2,3, is characterized in that: described vibrator (3) bottom outer surface is provided with snubber block (10).
5. sleeve pipe vibrating device according to claim 4, is characterized in that: described snubber block (10) is quality of rubber materials, inlays or sulfuration is fixed on shell (11) external surface, and quantity is 3-8.
6. sleeve pipe vibrating device according to claim 4, is characterized in that: described vibrator (3) is connected on hawser (4) by multiple mutually; Each vibrator (3) shell (11) upper and lower side is sealed by joint (6) and is connected with hawser (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410505762.7A CN105525892A (en) | 2014-09-28 | 2014-09-28 | Casing pipe vibrating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410505762.7A CN105525892A (en) | 2014-09-28 | 2014-09-28 | Casing pipe vibrating device |
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| CN105525892A true CN105525892A (en) | 2016-04-27 |
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| CN201410505762.7A Pending CN105525892A (en) | 2014-09-28 | 2014-09-28 | Casing pipe vibrating device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555566A (en) * | 2016-12-07 | 2017-04-05 | 中国石油集团西部钻探工程有限公司 | Frangible stratum or the cementing method on broken stratum |
| CN108894743A (en) * | 2018-06-30 | 2018-11-27 | 中国石油大学(华东) | A kind of oscilator system and its sports immunology method |
| CN108984872A (en) * | 2018-06-30 | 2018-12-11 | 中国石油大学(华东) | The movement of oscillator and its analyzing evaluation method to casing effect in casing mud |
| CN110318702A (en) * | 2019-08-16 | 2019-10-11 | 东营市汇诚石油工程技术有限责任公司 | A kind of vibration cementing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106555566A (en) * | 2016-12-07 | 2017-04-05 | 中国石油集团西部钻探工程有限公司 | Frangible stratum or the cementing method on broken stratum |
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| CN108984872B (en) * | 2018-06-30 | 2023-04-18 | 中国石油大学(华东) | Method for analyzing and evaluating motion of oscillator in casing mud and effect of oscillator on casing |
| CN110318702A (en) * | 2019-08-16 | 2019-10-11 | 东营市汇诚石油工程技术有限责任公司 | A kind of vibration cementing device |
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Application publication date: 20160427 |
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