CN202090868U - Vehicle-mounted multifunctional double-arm crane for lifting and lowering coiled tubing - Google Patents
Vehicle-mounted multifunctional double-arm crane for lifting and lowering coiled tubing Download PDFInfo
- Publication number
- CN202090868U CN202090868U CN2011202032992U CN201120203299U CN202090868U CN 202090868 U CN202090868 U CN 202090868U CN 2011202032992 U CN2011202032992 U CN 2011202032992U CN 201120203299 U CN201120203299 U CN 201120203299U CN 202090868 U CN202090868 U CN 202090868U
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- arms
- coiled tubing
- hang
- vehicle multifunction
- remove
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- Expired - Lifetime
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- 239000000725 suspension Substances 0.000 claims abstract description 5
- 238000002347 injection Methods 0.000 claims description 51
- 239000007924 injection Substances 0.000 claims description 51
- 244000309464 bull Species 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 9
- 230000008878 coupling Effects 0.000 description 11
- 238000010168 coupling process Methods 0.000 description 11
- 238000005859 coupling reaction Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 210000001364 upper extremity Anatomy 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The utility model provides a multi-functional both arms of vehicular for having lifted off coiled tubing hang, a multi-functional both arms of vehicular for having lifted off coiled tubing hang the setting on coiled tubing car's carousel, draw gear, the setting is in a multi-functional both arms of vehicular for having lifted off coiled tubing hang, a multi-functional both arms of vehicular for having lifted off coiled tubing hang includes: the two suspension arms are arranged on the continuous oil pipe and are respectively positioned in two parallel planes, and the two suspension arms are connected with each other. The utility model discloses compact structure, the operating efficiency is high, and one hangs the multi-purpose, reduces construction cost.
Description
Technical field
The utility model relates to the petroleum well logging technology field, and when belonging to oil well test, a kind of equipment that coiled tubing is removed hangs in particular to a kind of vehicle multifunction both arms that are used to remove coiled tubing.
Background technology
At present, the coiled tubing technology has been widely used in the oil well test field, plays a part very important in oil-gas exploration and Development and Production.When carrying out the oil well test construction with coiled tubing, need carry out rountrip, be about to coiled tubing and put into the lubricator of well head top, be lowered in the target zone via equipment such as preventer, decentralized wellhead and test pillars again, when being applied in the construction operation of coiled tubing operation at present, also need extra crane to cooperate and finish the construction operations such as butt joint that lift well head, preventer, injection head and relevant device, reduced the vehicle service efficiency, increase operating cost with the coiled tubing car.
In addition, therefore bigger because coiled tubing car and crane need the coordinative construction operation to the well head operation easier, and need staff's long-term work below the injection head device that floats, there is huge potential safety hazard.
The utility model content
The utility model needs extra crane cooperate with the coiled tubing car and finishes the problem that the vehicle service efficiency is low, operating cost is high that lifts and bring during at present coiled tubing rountrip.
For this reason, the utility model proposes a kind of vehicle multifunction both arms that are used to remove coiled tubing hangs, the described vehicle multifunction both arms that are used to remove coiled tubing hang the rotating disk that is arranged on the coiled tubing car, draw-gear, being arranged on the described vehicle multifunction both arms that are used to remove coiled tubing hangs on, the described vehicle multifunction both arms bull ladle that is used to remove coiled tubing is drawn together: be arranged on two arms on the coiled tubing, described two arms lay respectively in two parallel planes, and described two arms interconnect.
Further, injection device is arranged on the described vehicle multifunction both arms that are used to remove coiled tubing and hangs on.
Further, described injection device is connected between described two arms.
Further, described injection device is rotatably connected between described two arms by connecting axle.
Further, the vehicle multifunction both arms that are used to remove coiled tubing hang also and comprise: set upright the asessory shaft of described injection device, parallel described connecting axle of described asessory shaft and described asessory shaft are connected with first hydraulic cylinder.
Further, described draw-gear is fixedly connected between described two arms.
Further, be equipped with suspension hook on described two arms.
Further, described coiled tubing car is provided with cylinder, and described cylinder is positioned at outside the described rotating disk.
Further, each arm of described two arms includes: principal arm, on the described rotating disk of being arranged on of the second hydraulic cylinder adjustable angle; Telescopic arm is connected with described principal arm.
Further, described telescopic arm comprises first telescopic arm and second telescopic arm, and described first telescopic arm is installed in the described principal arm, and described second telescopic arm is installed in described first telescopic arm.
The utility model is arranged on two arms on the coiled tubing car, the draw-gear of traction coiled tubing is arranged on two arms, making draw-gear need not other crane in operation cooperates lifting can finish the rountrip of coiled tubing, the angle adjustment and the position adjustment of draw-gear self simultaneously can realize with the angle adjustment of two arms, so also realized the angle adjustment and the position adjustment of draw-gear self, solved the angle adjustment of draw-gear self and the problem that the position adjustment needs other crane to realize by the angle adjustment of two arms.
And then, the utility model will draw the draw-gear setting of coiled tubing and/or injection device between two arms, the huge pulling force that makes draw-gear produce in operation is shared by two arms, has increased the safety of coiled tubing rountrip and the safety of arm.Further, the utility model all is arranged on draw-gear setting and injection device between two arms, and the position of draw-gear setting and injection device can keep having increased the stability and the efficient of coiled tubing rountrip synchronously.
Description of drawings
Fig. 1 is the main TV structure that is used to remove the not duty that the vehicle multifunction both arms of coiled tubing hang according to the utility model embodiment;
Fig. 2 is for being used to remove the not duty plan structure that the vehicle multifunction both arms of coiled tubing hang according to the utility model embodiment;
Fig. 3 is the main TV structure that is used to remove the duty that the vehicle multifunction both arms of coiled tubing hang according to the utility model embodiment;
Fig. 4 is the plan structure that is used to remove the duty that the vehicle multifunction both arms of coiled tubing hang according to the utility model embodiment;
Main TV structure when the vehicle multifunction both arms that Fig. 5 removes coiled tubing for shown in Figure 3 being used to are hung in Rotate 180 °;
Fig. 6 is the syndeton that is used to remove the injection device that the vehicle multifunction both arms of coiled tubing hang according to the utility model embodiment.
The drawing reference numeral explanation:
The 1-rolling stand, the 2-cylinder, 3-angle indicating dial, the 4-angle indicator, the 5-drag chain, 6-drag chain fixed mount, the 7-principal arm,
8-first telescopic arm, 9-second telescopic arm, the 10-connected body, the 11-suspension hook, hanger on the 12-amplitude oil cylinder, the 13-amplitude oil cylinder,
Hanger under the 14-amplitude oil cylinder, 15-rear support leg telescopic oil cylinder, 16-rear support leg oil cylinder, 17-manual operation plate,
Hanger connecting axle under the 18-, the last hanger connecting axle of 19-, the 20-vehicle frame, the 21-rotating disk, 22-rotating disk supporting plate,
23-principal arm lower end hanger, the 24-rotating disk supporting plate ear of hanging oneself, 25-principal arm lower end connecting axle, 26-front leg strut oil cylinder,
27-first link arm, 28-second link arm, the 29-draw-gear, 30-the 3rd link arm, 31-the 4th link arm,
32-first coupling spindle, 33-second coupling spindle, 34-injection device 35-hydraulic cylinder
The specific embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast the description of drawings specific embodiment of the present utility model.
As depicted in figs. 1 and 2, the utility model proposes a kind of vehicle multifunction both arms that are used to remove coiled tubing hangs, the described vehicle multifunction both arms that are used to remove coiled tubing hang the rotating disk that is arranged on the coiled tubing car, draw-gear 29, being arranged on the described vehicle multifunction both arms that are used to remove coiled tubing hangs on, the described vehicle multifunction both arms bull ladle that is used to remove coiled tubing is drawn together: be arranged on two arms on the coiled tubing, described two arms lay respectively in two parallel planes, and described two arms interconnect.
The coiled tubing car is provided with rotating disk 21 on vehicle frame 20 tops, for use in the rotation that the vehicle multifunction both arms that remove coiled tubing hang, hangs the requirement of thing to satisfy difference.Described coiled tubing car is provided with cylinder 2, is wound with on the cylinder 2 to reach the long coiled tubing of several kms, and described cylinder is on the rolling stand 1 outside the described rotating disk 21 and between two arms and driver's cabin.The top of rotating disk 21 is provided with rotating disk supporting plate 22, is used to install principal arm 7.
Draw-gear 29 is used to draw coiled tubing, coiled tubing is pulled out from cylinder 2 and by injection device coiled tubing is put into the lubricator of well head top, is lowered in the target zone via equipment such as preventer, decentralized wellhead and test pillars again.The concrete structure of draw-gear 29 can (can use draw-gear or the traction injection device or the injection device of prior art with reference to prior art, above-mentioned prior art is except the traction coiled tubing, can also have certain guide effect), in the utility model, its structure is not the emphasis that the utility model is discussed, in this few description.Draw-gear 29 is arranged on the vehicle multifunction both arms that are used to remove coiled tubing and hangs on, and it is provided with the position can multiple choices.The utility model is fixedly connected on draw-gear 29 between described two arms, compact conformation like this, and arm is stressed evenly rationally, and coiled tubing bassinet structure symmetry keeps stable equilibrium during operation.In addition; by draw-gear 29 being fixedly connected between described two arms; make two arms have the effect of baffle plate, make draw-gear 29 be subjected to the bidirectional protective of two arms in the both sides, front and back, the situation of having avoided draw-gear 29 to be collided with in operation takes place.
In the utility model, injection device 34 is used for the coiled tubing that comes out from draw-gear 29 is led, and to put into the lubricator of well head top, the structure of injection device is mainly guide frame.The concrete structure of injection device 34 can be with reference to prior art, for example reference, and Chinese utility model patent: guide type is managed patents such as injection device 201020212717.x continuously.In the utility model, its structure is not the emphasis that the utility model is discussed, in this few description.
Further, injection device 34 is arranged on the described vehicle multifunction both arms that are used to remove coiled tubing and hangs on, and has increased the flexibility that injection device 34 is adjusted self, so that adjust the height of injection device 34.And traction, injection and required lifting that of the present utility model year formula multifunctional dual-arm hangs the collection coiled tubing be one, and the position of draw-gear setting and injection device can keep having increased the stability and the efficient of coiled tubing rountrip synchronously.In addition, in the utility model, injection device 34 hangs by connecting axle and both arms and is combined into integral body, the more stable and safety of the setting of injection device 34, unlike prior art injection device need for a long time by wire rope be hung in well head directly over.The staff need not long-term work below the injection head device that floats, and has eliminated huge potential safety hazard.
As shown in Figure 2, described injection device 34 is connected between described two arms and is positioned at the side away from cylinder 2 of draw-gear 29.Like this, injection device 34 can overlap with the work plane of cylinder 2 and draw-gear 29, and coiled tubing is not subjected to unexpected distortion, guaranteed the performance of coiled tubing in the rountrip, and arm is stressed evenly rationally, and coiled tubing bassinet structure symmetry is compact, keeps stable equilibrium during operation.In addition; injection device 34 is fixedly connected between described two arms; make two arms have the effect of baffle plate, make injection device 34 be subjected to the bidirectional protective of two arms in the both sides, front and back, the situation of having avoided injection device 34 to be collided with in operation takes place.
As shown in Figure 3 and Figure 4, each arm of described two arms includes: principal arm 7 and telescopic arm.Principal arm 7 is by hydraulic cylinder, for example by amplitude oil cylinder 13, and being arranged on the described rotating disk of adjustable angle.Telescopic arm is connected with described principal arm 7.Described telescopic arm comprises first telescopic arm 8 and second telescopic arm 9, like this, longer arm exhibition can be arranged.Principal arm 7 and rotating disk supporting plate 22 are connected by hang oneself ear 24 and principal arm lower end connecting axle 25 of principal arm lower end hanger 23, rotating disk supporting plate; Amplitude oil cylinder 13 is used to change the elevation angle of principal arm 7, to satisfy the construction operation requirement, amplitude oil cylinder 13 couples together principal arm 7 and rotating disk supporting plate 22 by hanger connecting axle 18 and last hanger connecting axle 19 under 14 processes of hanger under hanger on the amplitude oil cylinder 12 and the amplitude oil cylinder.
In the described principal arm 7 described first telescopic arm 8 is installed, in described first telescopic arm 8 described second telescopic arm 9 is installed.The principal arm 7 of two groups of arms welds with it by first link arm 27, second link arm 28, the 3rd link arm 30, the 4th link arm 31, and the principal arm 7 of its two groups of arms is become one.The top is provided with connected body 10 on second telescopic arm 9, and connected body 10 is the tubing string shape for example, is used for connecting shackle 11, with the required component of construction of slinging.Wherein, draw-gear 29 is arranged on second link arm 28 and the 3rd link arm 30 and is connected between the principal arm 7 of two groups of arms; first link arm 27 and the 4th link arm 31 are arranged in the both sides, front and back of draw-gear 29; both guaranteed that draw-gear 29 was firmly on the principal arm that is arranged in two groups of arms of safety; also draw-gear 29 has been realized protection, prevented colliding with of draw-gear 29 from the left and right sides, front and back four direction.
Further, described injection device 34 is connected between described two arms by connecting axle, like this, can also adjust the angle of injection device 34, so that align well head.As shown in Figure 6, between two connected bodies 10, be provided with first coupling spindle 32, be provided with injection device 34 thereon.Second coupling spindle, 33 parallel first coupling spindles 32 are provided with, and are connected the two ends of injection device 34, and second coupling spindle 33 is connected with hydraulic cylinder 35 and is vertical mutually, but is not connected with connected body 10.Injection device 34 can be around 32 rotation and the axially-movables of first coupling spindle, and second coupling spindle 33 is connected with injection device 34 by hydraulic cylinder 35, is used for injection device 34 guiding.When needing to adjust the angle of injection device 34, by stretching of hydraulic cylinder 35, making injection device 34 under the effect of setting upright or leading of second coupling spindle 33, serves as that axle is adjusted with first coupling spindle 32.Wherein, hydraulic cylinder 35 can be arranged on other positions on the rotating disk supporting plate 22 or on the both arms.This adjustment mode of injection device 34 can guarantee the flexible and precision of adjusting.Injection device 34 passes through the support of coupling spindle and hydraulic cylinder 35, the location of having realized both direction, thereby, can also guarantee to adjust the stable of position, back.Vehicle frame 20 bottoms are provided with front leg strut oil cylinder 26, rear support leg telescopic oil cylinder 15, rear support leg oil cylinder 16, manual operation plate 17, are used for supported cart support body 20 and control operation.
In addition, as depicted in figs. 1 and 2, be provided with angle indicating dial 3 and angle indicator 4, be used to indicate the elevation angle of principal arm 7 in principal arm 7 lower end side; Be sequentially with drag chain fixed mount 6 above a principal arm 7, be shaped as grooved, be used to locate drag chain, drag chain fixed mount 6 tops are provided with drag chain 5, are used to arrange various soft pipelines, and can stretching with first telescopic arm 8 and second telescopic arm 9.
Operating principle of the present utility model once is described below:
During work,, make it do corresponding action by operating banked direction control valves handle corresponding on the manual operation panel 17.
Open rear support leg telescopic oil cylinder 15, rear support leg oil cylinder 16, front leg strut oil cylinder 26 successively.
Open amplitude oil cylinder 13 then, make principal arm 7 elevations angle reach certain angle, restart first telescopic arm 8 and second telescopic arm 9, make it be elongated to certain altitude, sling the construction required component, the required drive source is all provided by hydraulic pump, and executive component is hydraulic motor and hydraulic jack, and banked direction control valves can be manual or remote electrically controlled.After every preparation was carried out, the operating position of draw-gear 29, injection device 34 was determined, just can carry out the work that removes of coiled tubing under the state of the operating position that keeps draw-gear 29, injection device 34 then.
The utility model is arranged on two arms on the coiled tubing car, the draw-gear of traction coiled tubing is arranged on two arms, making draw-gear need not other crane in operation cooperates lifting can finish the rountrip of coiled tubing, the angle adjustment and the position adjustment of draw-gear self simultaneously can realize with the angle adjustment of two arms, so also realized the angle adjustment and the position adjustment of draw-gear self, solved the angle adjustment of draw-gear self and the problem that the position adjustment needs other crane to realize by the angle adjustment of two arms.
And then, the utility model will draw the draw-gear setting of coiled tubing and/or injection device between two arms, the huge pulling force that makes draw-gear produce in operation is shared by two arms, has increased the safety of coiled tubing rountrip and the safety of arm.
When needs loading and unloading cylinder 2, for example, after the removing of coiled tubing finished, as shown in Figure 5, rotary turnplate 21 makes its Rotate 180 °, lifts by crane, like this, loading and unloading cylinder 2 also need not to use other crane, makes the utility model integrate traction, injection, loading and unloading cylinder and required other component of lifting construction, has improved operating efficiency, reduced cost, realized that one hangs use more.
The above only is the schematic specific embodiment of the utility model, is not in order to limit scope of the present utility model.For each ingredient of the present utility model can make up under the condition of not conflicting mutually; any those skilled in the art; equivalent variations of having done under the prerequisite that does not break away from design of the present utility model and principle and modification all should belong to the scope that the utility model is protected.
Claims (10)
1. vehicle multifunction both arms that are used to remove coiled tubing hang, it is characterized in that,
The described vehicle multifunction both arms that are used to remove coiled tubing hang the rotating disk that is arranged on the coiled tubing car, draw-gear, being arranged on the described vehicle multifunction both arms that are used to remove coiled tubing hangs on, the described vehicle multifunction both arms bull ladle that is used to remove coiled tubing is drawn together: be arranged on two arms on the coiled tubing, described two arms lay respectively in two parallel planes, and described two arms interconnect.
2. the vehicle multifunction both arms that are used to remove coiled tubing as claimed in claim 1 hang, and it is characterized in that, injection device is arranged on the described vehicle multifunction both arms that are used to remove coiled tubing and hangs on.
3. the vehicle multifunction both arms that are used to remove coiled tubing as claimed in claim 2 hang, and it is characterized in that described injection device is connected between described two arms.
4. the vehicle multifunction both arms that are used to remove coiled tubing as claimed in claim 3 hang, and it is characterized in that described injection device is rotatably connected between described two arms by connecting axle.
5. the vehicle multifunction both arms that are used to remove coiled tubing as claimed in claim 4 hang, and it is characterized in that also comprise: set upright the asessory shaft of described injection device, parallel described connecting axle of described asessory shaft and described asessory shaft are connected with first hydraulic cylinder.
6. the vehicle multifunction both arms that are used to remove coiled tubing as claimed in claim 1 hang, and it is characterized in that described draw-gear is fixedly connected between described two arms.
7. the vehicle multifunction both arms that are used to remove coiled tubing as claimed in claim 1 hang, and it is characterized in that, are equipped with suspension hook on described two arms.
8. the vehicle multifunction both arms that are used to remove coiled tubing as claimed in claim 1 hang, and it is characterized in that described coiled tubing car is provided with cylinder, and described cylinder is positioned at outside the described rotating disk.
9. the vehicle multifunction both arms that are used to remove coiled tubing as claimed in claim 1 hang, and it is characterized in that each arm of described two arms includes: principal arm, on the described rotating disk of being arranged on of the second hydraulic cylinder adjustable angle; Telescopic arm is connected with described principal arm.
10. the vehicle multifunction both arms that are used to remove coiled tubing as claimed in claim 9 hang, it is characterized in that, described telescopic arm comprises first telescopic arm and second telescopic arm, and described first telescopic arm is installed in the described principal arm, and described second telescopic arm is installed in described first telescopic arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202032992U CN202090868U (en) | 2011-06-16 | 2011-06-16 | Vehicle-mounted multifunctional double-arm crane for lifting and lowering coiled tubing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202032992U CN202090868U (en) | 2011-06-16 | 2011-06-16 | Vehicle-mounted multifunctional double-arm crane for lifting and lowering coiled tubing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202090868U true CN202090868U (en) | 2011-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202032992U Expired - Lifetime CN202090868U (en) | 2011-06-16 | 2011-06-16 | Vehicle-mounted multifunctional double-arm crane for lifting and lowering coiled tubing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202090868U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220848A (en) * | 2011-06-16 | 2011-10-19 | 中国石油天然气股份有限公司 | Vehicle-mounted multifunctional double-arm crane for lifting and lowering coiled tubing |
| CN105776043A (en) * | 2014-12-15 | 2016-07-20 | 哈尔滨市三和佳美科技发展有限公司 | Hydraulic oblique arm type lifting box |
| CN106089131A (en) * | 2015-04-28 | 2016-11-09 | 国民油井华高有限公司 | Winding pipe implanter processing equipment |
| CN111236867A (en) * | 2020-01-13 | 2020-06-05 | 秦胜建 | Digital continuous oil pipe injection equipment with hydraulic pressure type transmission power smooth |
| CN113682981A (en) * | 2021-09-09 | 2021-11-23 | 大洋泊车股份有限公司 | Flexible arm of platform fire engine ascends a height |
-
2011
- 2011-06-16 CN CN2011202032992U patent/CN202090868U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220848A (en) * | 2011-06-16 | 2011-10-19 | 中国石油天然气股份有限公司 | Vehicle-mounted multifunctional double-arm crane for lifting and lowering coiled tubing |
| CN105776043A (en) * | 2014-12-15 | 2016-07-20 | 哈尔滨市三和佳美科技发展有限公司 | Hydraulic oblique arm type lifting box |
| CN106089131A (en) * | 2015-04-28 | 2016-11-09 | 国民油井华高有限公司 | Winding pipe implanter processing equipment |
| CN106089131B (en) * | 2015-04-28 | 2018-12-28 | 国民油井华高有限公司 | Winding pipe implanter processing equipment |
| CN111236867A (en) * | 2020-01-13 | 2020-06-05 | 秦胜建 | Digital continuous oil pipe injection equipment with hydraulic pressure type transmission power smooth |
| CN111236867B (en) * | 2020-01-13 | 2021-09-21 | 临沂德胜机械有限公司 | Digital continuous oil pipe injection equipment with hydraulic pressure type transmission power smooth |
| CN113682981A (en) * | 2021-09-09 | 2021-11-23 | 大洋泊车股份有限公司 | Flexible arm of platform fire engine ascends a height |
| CN113682981B (en) * | 2021-09-09 | 2023-03-10 | 大洋泊车股份有限公司 | Flexible arm of platform fire engine ascends a height |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111228 |