CN203756116U - Vibration cementing device - Google Patents
Vibration cementing device Download PDFInfo
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- CN203756116U CN203756116U CN201320881852.7U CN201320881852U CN203756116U CN 203756116 U CN203756116 U CN 203756116U CN 201320881852 U CN201320881852 U CN 201320881852U CN 203756116 U CN203756116 U CN 203756116U
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Abstract
The utility model discloses a vibration cementing device, which relates to the field of cementing. The vibration cementing device mainly comprises an electric cable 2, a transformer 11 and an oscillator 5, wherein the two ends of the electric cable 2 are respectively connected with the output end of the transformer 11 and the oscillator 5; the oscillator 5 is provided with a pressure-resistant cavity 17 which is of a closed structure; a motor 13 and eccentric blocks 16 are arranged in the pressure-resistant cavity 17; one or more than two eccentric blocks 16 are arranged in the axial direction. According to the vibration cementing device, the annulus cement grout in the range of a full sleeve section is vibrated in the ways of transferring vibration waves and knocking a sleeve in a process of waiting on cement without influencing the conventional cementing process, the rheological properties of the grout are improved, and the cementing quality is improved.
Description
Technical field
The utility model relates to oil drilling cementing technology field, especially a kind of vibration cementing device.
Background technology
In oil gas well cementing operation process, be subject to that Behavior of Hardened Cement Paste shrinks, the crackle and the part hole that produce in hydration process of cement, between the waiting-on-cement, the factor of cement paste post weightlessness affects, and cementing quality easily occurs defective, the later stage is caused formation fluid channelling, affects oil and gas production.The means such as solidifying mechanical oscillation for different phase, hydraulic impulse, hydraulic blow of waiting at setting of casing, cementing, replacement cement and cement paste produce vibration wave and act on sleeve pipe, drilling fluid and cement paste and can improve cementing quality.
All kinds of vibration cementing devices are due to the difference of application opportunity, mode of vibration and vibration source position, pluses and minuses are as follows: (1) bottom hydraulic pulsed vibrator, be arranged on bunch tube stage casing or bottom, with sleeve pipe G.I.H, cement paste produces waterpower pulse vibration while flowing through vibrator.This device only discharges vibration in the displacement process of cement paste, and helpless to waiting solidifying this link.(2) well head vibrator, is arranged on sleeve pipe top, sends mechanical oscillation.Because riding position is at well head, it is large that underground vibrating effect is subject to transmission range to affect decay.(3) well head waterpower or air pulse vibration cementing device, waterpower or air pulse that ground is produced pass to the cement paste in annular space, but ground pulse generating unit and control system bulky complex, power demand is very large.
Application number is that the Chinese patent of CN201110035683.0 discloses a kind of followed vibration well cementation method, the mechanical resonator of application the method has metal sealing chamber, inside there are power supply, motor and programmed processor, there is rubber plug sleeve outward, rubber plug sleeve replaces descending one side vibration on one side in sleeve pipe when cement paste, and after going downwards to shaft bottom bruising float collar and stopping, continuation vibration is until stop vibration again before cement paste initial set.This device finally rests on sleeve bottom, cannot recycle, and invests high; It is limited that shaft bottom bruising float collar stops after vibration influence basin; Entering the well after vibration time cannot adjust again, and electric machine operation state is difficult to judgement; The metal construction annular seal space of mechanical resonator can affect and continue to spud in.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, proposes a kind of vibration cementing device.This device has been realized in the situation that not affecting conventional cementing technique, waits in solidifying process, by transmitting vibrations ripple and the mode of knocking sleeve pipe, the cement paste of annular space is implemented to vibration at cement, improves cement paste rheological behavior, improves well cementing of cement quality.
The utility model by the following technical programs mode is realized:
A kind of vibration cementing device, is mainly made up of cable 2, transformer 11 and oscillator 5; Wherein cable 2 two ends connection transformer 11 outputs and oscillator 5 respectively; Described oscillator 5 has the withstand voltage chamber 17 of closed structure, and 17 inside, withstand voltage chamber comprise motor 13 and eccentric block 16, and eccentric block 16 is for one or two are above and be axially-aligned.
Above-mentioned vibration cementing device also comprises: connect frequency converter 10 at transformer 11 outputs, cable 2 is by frequency converter 10 output access oscillators 5, and motor 13 adopts frequency control motor simultaneously.
In the withstand voltage chamber of oscillator, 17 external surfaces are provided with block rubber 7 or wiper block, this block rubber shape comprises the ring piece combining structure that circulus, block structure or ring and agllutination close, this block rubber distributes and comprises and be embedded in arbitrary position of withstand voltage chamber 17 external surfaces or more than two part combination spaced apart, and block rubber external diameter is slightly less than the internal diameter of well cementing casing pipe.
Motor 13 is coaxially connected with eccentric block 16, and on connecting axle, is provided with bearing 15.
This device further comprises halter 4, winch 8 and pulley 1; Wherein oscillator 5 is connected with cable 2 by halter 4, and cable 2 passes pulley and is wrapped on winch 8.
The sleeve pipe resonator using when replacing cement paste in prior art is compared with vibration plug, and the utility model apparatus and method have advantages of following:
(1) can realize degree of depth vibration arbitrarily in full well section cover scope tube, can hover and also can shake while walking and double vibrations;
(2) implement vibration at cement paste for the complete Hou Ning stage of slurry, vibration time can be adjusted flexibly;
(3) enforcement vibration is complete can recycle whole devices, and running cost is little, can be widely used in cement slurry cementing field;
(4) by the observation to ground level transformer output voltage and electric current, monitor intuitively motor operating state;
(5) do not affect conventional cementing technique, after vibration cementing finishes, do not affect yet and in sleeve pipe, continue to spud in;
(6) alternating current wiring in well site is simple, and vibration cementing energy loss is few, and energy consumption is low.
Brief description of the drawings
Fig. 1 is that vibration cementing device of the present utility model is specifically applied schematic diagram.
Fig. 2 is a kind of example structure sectional drawing of the utility model device.
Fig. 3 is the another kind of example structure sectional view of the utility model device.
Mark in figure:
1, pulley, 2, cable, 3, sleeve pipe, 4, halter, 5, oscillator, 6, cement paste, 7, block rubber, 8, winch, 9, power line, 10, frequency converter, 11. transformers, 12, power supply, 13, motor, 14, rotor, 15, bearing, 16, eccentric block, 17, withstand voltage chamber, 18, hook greatly.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1
With reference to Figure of description 1 and accompanying drawing 2, in vibration cementing device of the present utility model, ground utilizes logging truck to load cable 2, winch 8, frequency converter 10 and transformer 11, and logging truck possesses the winch slip ring that transmits alternating current.Cable 2 adopts well logging seven core wireropes, and is wrapped on well logging vehicular winch 8, and cable one end connects logging halter 4, and the other end connects frequency converter 10 outputs by slip ring device for logging winder.Frequency converter 10 input connection transformer 11 outputs, transformer 11 inputs connect the 380V three-phase alternating-current supply in well site.
Oscillator 5 upper ends connect halter 4, and transmit alternating current by halter contact pin.The withstand voltage chamber 17 of oscillator 5 adopts steel pipe material, critical external compressive resistance 70MPa, and alternating-current variable frequency motor 13 and eccentric block 16 are equipped with in inside.Eccentric block 16 is single and is arranged in withstand voltage chamber 17 by bearing 15, the rotor 14 of motor 13 and the coaxial installation of eccentric block 16 transmitting torque, and employing is welded to connect, and also can adopt spline joint.
Eccentric block 16 is arranged on the bottom of oscillator 5, makes the lower end amplitude maximum vibration of oscillator 5 the strongest.Eccentric block 16 cross sections are fan-shaped eccentric shape, adopt steel design.In test, collision between metal directly occurs for 5 times end housings of oscillator and sleeve pipe can cause violent irregular the waving of oscillator 5 self, can significantly reduce vibration frequency and eccentric block 16 rotating speeds, and rotor 14 is suppressed and turned, and causes that motor 13 electric currents skyrocket.For avoiding motor damage, in withstand voltage chamber, 17 bottom outer surface are circumferentially evenly inlayed 3 ~ 8 block rubbers 7, and withstand voltage chamber 17 external diameters after mosaic rubber block 7 are less than casing inner diameter.
With reference to Figure of description 1, vibration cementing method of the present utility model adopts following processing step:
First, determine in advance the initial setting time of cement paste, and calculate sleeve pipe intrinsic frequency according to casing programme, casing size and length gauge, and adjust frequency converter 10 output frequencies setting values, in frequency converter 10 parameter areas, it equaled or approach the intrinsic frequency value of sleeve pipe; Casing size is slightly larger than described oscillator external diameter.
Then, transformer 11 is connect to well site electricity, and on the large hook 18 above well head fixed block 1, and by cable 2 and halter 4, through pulley 1, oscillator 5 connects halter 4, after cementing finishes for the complete and bruising of slurry, the cementing head of dismantling, is lowered to oscillator 5 in sleeve pipe fast.
Then, need to improve after the well depth of cementing quality starting transformer 11 and frequency converter 10 when arriving.Transformer 11 boosts to 480V, and cable 2 and motor 13 are connected, motor 13 running current 1.0A, and cable 2 overall length six kms, all-in resistance 100 Ω, produce pressure drop 100V, and motor 2 terminal voltages are 380V.The frequency vibration of oscillator 5 to start to set, causes casing resonant, discharges towards periphery vibration wave when vibration casing wall, and vibration wave passes in annular space in waiting the cement paste of solidifying state.
The mode of vibration of oscillator 5 is hovered for moving or move down two meters in hovering vibration two minutes more again, or repeatedly move up and down with 1 ~ 3 meter of speed per minute while shaking, the time that oscillator stops vibration at a place is less than 6 minutes, avoids the elutriation that occurs cement paste to produce unboiled water layer.
Finally, vibration proceeds to the cement paste initial setting time that approaches or arrive the interval that shakes, and finishes vibration, and oscillator 5 trips out sleeve pipe, and whole vibration cementing process finishes.
Compared with the sleeve pipe resonator using in the time replacing cement paste or vibration plug, vibration cementing method of the present utility model was only implemented in 3 ~ 5 hours of the cement paste Hou Ning after cementing head of dismantling, do not affect conventional cementing technique, and reclaim not affect yet and in sleeve pipe, continue to spud in because vibration cementing finishes rear oscillator.Enforcement vibration is complete can recycle whole devices, and running cost is little; By the observation to ground level transformer output voltage and electric current, monitor intuitively motor operating state.A whole set of vibration cementing device is simple to operation, and well site alternating current is easy to obtain, and vibration cementing energy loss is few, and energy consumption is low.Can realize degree of depth vibration arbitrarily in full well section cover scope tube, can hover and also can shake while walking and double vibrations; Implement vibration at cement paste for the complete Hou Ning stage of slurry, vibration time can be adjusted flexibly.Utilize frequency converter to adjust the vibration frequency of downhole oscillation device, send the vibration wave identical with sleeve pipe intrinsic frequency, realize casing resonant, improve vibration efficiency.
Embodiment 2
With reference to accompanying drawing 3, compare embodiment 1, the eccentric block 16 of vibration cementing device changes two of axial series into, and is eachly fixed in withstand voltage chamber 17 by pair of bearings; On oscillator 5, end housing is also circumferentially inlaid with 3 ~ 8 block rubbers 7, be preferably 4, can ensure like this that oscillator 5 vibrates time can directly there is not metal bump in low side, can make again to keep enough large flow channels between block rubber, is conducive to the remove speed of raising in sleeve pipe.
The length of eccentric block 16 and quantity also can increase, to improve vibration intensity.Eccentric block 16 quantity become two of series connection by one, and number of bearings is multiplied, and this can reduce the load of single bearing compared with the identical single eccentric load of overall length, improve bearing life.
Embodiment 3
Compared with embodiment 1, cable 2 is directly fixedly connected with oscillator 5, and cable 2 is wireropes that appearance has bearing steel wire, and steel wire weld or riveting method are fixed on 17 tops, withstand voltage chamber.Wire in cable 2 connects motor 13, and motor 13 is fixed in withstand voltage chamber 17 with interference fit.Large hook 18 on the derrick of well head is sling pulley 1 as top sheave, then coordinates lower sheave in Well Logging Engineering can better ensure the stability of cable 2.
Cable 2 other ends are by direct connection transformer 11 outputs of winch slip ring, cable 2 overall length six kms and all-in resistance 150 Ω.Transformer 11 inputs connect the power frequency 380V three-phase alternating-current supply in well site, and motor operation rated voltage is 380V.
Claims (5)
1. a vibration cementing device, is characterized in that: be mainly made up of cable (2), transformer (11) and oscillator (5); Wherein cable (2) two ends connection transformer (11) output and oscillator (5) respectively; Described oscillator (5) has the withstand voltage chamber (17) of closed structure, and inside, withstand voltage chamber (17) comprises motor (13) and eccentric block (16), and eccentric block (16) is for one or two are above and be axially-aligned.
2. vibration cementing device according to claim 1, it is characterized in that: connect frequency converter (10) at transformer (11) output, cable (2) is by frequency converter (10) output access oscillator (5), and motor (13) adopts frequency control motor simultaneously.
3. vibration cementing device according to claim 1 and 2, it is characterized in that: in the withstand voltage chamber (17) of oscillator, external surface is provided with block rubber (7) or wiper block, this block rubber shape comprises the ring piece combining structure that circulus, block structure or ring and agllutination close, this block rubber distributes and comprises and be embedded in arbitrary position of withstand voltage chamber (17) external surface or more than two part combination spaced apart, and block rubber external diameter is slightly less than the internal diameter of well cementing casing pipe.
4. vibration cementing device according to claim 3, is characterized in that: motor (13) is coaxially connected with eccentric block (16), and on connecting axle, is provided with bearing (15).
5. vibration cementing device according to claim 4, is characterized in that: also comprise halter (4), winch (8) and pulley (1); Wherein oscillator (5) is connected with cable (2) by halter (4), and cable (2) passes pulley and is wrapped on winch (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320881852.7U CN203756116U (en) | 2013-12-31 | 2013-12-31 | Vibration cementing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320881852.7U CN203756116U (en) | 2013-12-31 | 2013-12-31 | Vibration cementing device |
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| Publication Number | Publication Date |
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| CN203756116U true CN203756116U (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320881852.7U Expired - Fee Related CN203756116U (en) | 2013-12-31 | 2013-12-31 | Vibration cementing device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525892A (en) * | 2014-09-28 | 2016-04-27 | 中国石油化工集团公司 | Casing pipe vibrating device |
| 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 |
| CN104806197B (en) * | 2015-04-22 | 2017-09-15 | 中国石油天然气股份有限公司 | A kind of vibration cementing system and method |
| CN112901109A (en) * | 2021-01-20 | 2021-06-04 | 中国农业大学 | Linear motor vibration well cementation device and method based on RFID control |
| CN112983346A (en) * | 2021-03-08 | 2021-06-18 | 新疆能通能原石油工程有限公司 | Accompanying intelligent well cementation device and method with adjustable vibration parameters |
-
2013
- 2013-12-31 CN CN201320881852.7U patent/CN203756116U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525892A (en) * | 2014-09-28 | 2016-04-27 | 中国石油化工集团公司 | Casing pipe vibrating device |
| CN104806197B (en) * | 2015-04-22 | 2017-09-15 | 中国石油天然气股份有限公司 | A kind of vibration cementing system and method |
| 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 |
| CN112901109A (en) * | 2021-01-20 | 2021-06-04 | 中国农业大学 | Linear motor vibration well cementation device and method based on RFID control |
| CN112983346A (en) * | 2021-03-08 | 2021-06-18 | 新疆能通能原石油工程有限公司 | Accompanying intelligent well cementation device and method with adjustable vibration parameters |
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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: 20151123 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: Drilling Well Technology Institute, Shengli Petroleum Engineering Co., Ltd., SINOPEC |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20201231 |