CN104005715A - Distance increasing type driving heave compensation device - Google Patents
Distance increasing type driving heave compensation device Download PDFInfo
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- CN104005715A CN104005715A CN201410191002.3A CN201410191002A CN104005715A CN 104005715 A CN104005715 A CN 104005715A CN 201410191002 A CN201410191002 A CN 201410191002A CN 104005715 A CN104005715 A CN 104005715A
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Abstract
The invention discloses a distance increasing type driving heave compensation device which comprises an upper supporting frame. The two ends of the upper supporting frame are respectively provided with a driving cylinder and a driven cylinder in parallel. A common top seat of a driving cylinder piston rod and a driven cylinder piston rod at each end is provided with a set of chain wheels, and the two ends of the upper supporting frame are respectively connected with a set of chains upwards. Each set of chains are fixedly connected with a lower supporting frame below the upper supporting frame in a hanging mode after passing through the corresponding set of chain wheels above the set of chains respectively. The driving cylinders and the driven cylinders are connected with a control mechanism. According to the distance increasing type driving heave compensation device, the advantage of distance increasing type multiplication compensation stroke and the control manner of direct pull rod type driving compensation are integrally combined, the chain wheels and the chains are used for transmitting the compensation stroke, constant speed cylinders are added on the side faces of the driven cylinders to conduct driving control, distance increasing is achieved, and control is simple and reliable.
Description
Technical field
The invention belongs to oil-well drilling equipment technical field, relate to a kind of pitch increased type active compensation device.
Background technology
Floating drilling platform, under wave action, except waving, also will produce upper and lower heave movement all around.Floating drilling platform will cause that the whole drill string suspending in midair on derrick and hook periodically moves up and down with the heave movement up and down of wave period.Drill string moves up and down and will make the pulling force on hook increase or reduce, and directly affects the variation of Bottom Hole Bit Weight In A.The pressure of the drill periodically changes and is unfavorable for creeping into, and reduces to a certain degree when the pressure of the drill, will make drill bit depart from shaft bottom, cannot continue to creep into.The effect of heave compensator is exactly the relative motion that reduces drill string and seabed, and drill string is kept to constant tensile force, has ensured can continue to creep in the time of platform heave movement, improves drilling efficiency.
At present, most widely used heave compensator mainly contains overhead traveling crane compensation arrangement and tourist bus compensation arrangement.Compressor in overhead traveling crane compensation arrangement, Hydraulic Station, pipeline etc. are all placed in deck in ship structure now, all the other principal organ are all arranged on crown's nest and derrick, require crown's nest and derrick that this overhead traveling crane compensation arrangement is installed must there is high strength, and high-intensity requirement causes the complex structure of crown's nest and derrick, exist weight and wind to carry too huge problem, be also unfavorable for maintenance simultaneously.Tourist bus compensation arrangement is mounted in tourist bus and top and uses between driving, and this device integral installation above deck, takies floor space larger, controls flexible pipe longer, and sealing wastage is larger.Active tourist bus compensation arrangement has two kinds of patterns, and one is direct stay formula, and one is pitch increased type.Rod-pulling type has adopted the mode of parallel active cylinder to realize Active Compensation, but fluid cylinder stroke is longer.Pitch increased type compensation arrangement advantage is in the situation of identical fluid cylinder stroke, compensation stroke to be doubled, and is that the mode by increasing a pressurized cylinder realizes Active Compensation at present, but control system logic complexity, poor stability.
Summary of the invention
The object of this invention is to provide a kind of pitch increased type active compensation device, solved in prior art and had complex structure, system logic complexity, the problem of poor stability.
The technical solution adopted in the present invention is, a kind of pitch increased type active compensation device, comprises upper support frame, and the two ends of upper support frame are a parallel active cylinder and the passive cylinder of being provided with respectively; On the active cylinder piston bar of every end and the common footstock of passive cylinder piston rod, be provided with one group of sprocket wheel, upper support frame two ends are upwards connected with respectively a set of chain, every cover chain is respectively by fixedly hanging and connect with the lower support frame of upper support frame below after one group of sprocket wheel of top correspondence, and each active cylinder is all connected with controlling organization with passive cylinder.
Pitch increased type active compensation device of the present invention, its feature is also:
Controlling organization is divided into passive compensation and two parts of Active Compensation,
Passive compensation comprises accumulator, and the input of accumulator is communicated with high pressure gas holder and work gas tank simultaneously, and the output of accumulator is communicated with two passive cylinders simultaneously;
Active Compensation comprises proportioning pump, and proportioning pump is connected with proportional valve control, and proportioning valve is communicated with two active cylinder simultaneously.
Between upper support frame and lower support frame, locking cylinder is installed.
Every group of sprocket wheel is respectively arranged with a sprocket wheel guard shield.
The invention has the beneficial effects as follows, the compensation stroke of having realized drill string on the basis of fixed compensation cylinder stroke doubles, increase active cylinder in the side of passive cylinder simultaneously and realize ACTIVE CONTROL, make ACTIVE CONTROL and Passive Control separate, the pitch increased type multiplication compensation advantage of stroke and the control mode of direct stay formula Active Compensation are combined as a whole, adopt sprocket wheel chain transmission compensation stroke, increase constant speed cylinder simultaneously in passive cylinder side and carry out ACTIVE CONTROL, not only realized increment but also make to control simple and reliable.
Brief description of the drawings
Fig. 1 is the structural representation of pitch increased type active compensation device of the present invention;
Fig. 2 is the cross section structure schematic diagram of pitch increased type active compensation device of the present invention;
Fig. 3 is the control section structural representation of pitch increased type active compensation device of the present invention.
In figure, 1. sprocket wheel, 2. sprocket wheel guard shield, 3. chain, 4. active cylinder, 5. passive cylinder, 6. tourist bus, 7. upper support frame, 8. lower support frame, 9. drive on top, 10. locking cylinder, 11. high pressure gas holders, 12. work gas tanks, 13. accumulators, 14. proportioning valves, 15. proportioning pumps.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
With reference to Fig. 1, Fig. 2, the structure of pitch increased type active compensation device of the present invention is, comprise upper support frame 7, tourist bus 6 is installed on upper support frame 7, the two ends of upper support frame 7 are parallel is respectively provided with an active cylinder 4 and a passive cylinder 5, and the cylinder body of active cylinder 4, the cylinder body of passive cylinder 5 and upper support frame 7 threes are fixedly connected with; On active cylinder 4 piston rods of every end and the common footstock of passive cylinder 5 piston rods, be provided with one group of sprocket wheel 1, every group of sprocket wheel 1 is respectively arranged with a sprocket wheel guard shield 2, upper support frame 7 two ends are upwards connected with respectively a set of chain 3, every cover chain 3 is fixedly hung and connects by one group of sprocket wheel 1 lower support frame 8 rear and upper support frame 7 belows of top correspondence respectively, lower support frame 8 lower ends are hung with top and drive 9 and drill string, between upper support frame 7 and lower support frame 8, locking cylinder 10 is installed, each active cylinder 4 is all connected with controlling organization with passive cylinder 5.
Sprocket wheel 1 is board-like sprocket wheel, and for roller chain, compact conformation is simple.The flexible of active cylinder 4 and passive cylinder 5 moved and realized lower support frame 8 and move up and down by sprocket wheel 1, the top that drives lower support frame 8 lower ends to hang drive 9 and drill string with respect to the moving up and down of upper support frame 7, thereby realize the object of compensation drill string stroke.
Active cylinder 4 is constant speed cylinder, and for singly stretching out structure, the upper and lower cavity cross section of its plunger shaft and rod end chamber equates.Thereby realize constant speed function.
The stroke of passive cylinder 5 and load pass to top by sprocket wheel 1 and chain 3 and drive 9 and drill string, thereby realize the increment of compensation stroke, and the stroke of drill string is a times of compensating cylinder stroke.
With reference to Fig. 3, controlling organization is divided into separate passive compensation and two parts of Active Compensation,
Passive compensation comprises accumulator 13, and the input of accumulator 13 is communicated with high pressure gas holder 11 and work gas tank 12 simultaneously, and the output of accumulator 13 is communicated with two passive cylinders 5 simultaneously, controls hydraulic oil in passive cylinder 5 and support the suspending weight of certain drill string;
Active Compensation comprises proportioning pump 15, proportioning pump 15 and proportioning valve 14 control connections, proportioning valve 14 is communicated with two active cylinder 4 simultaneously, directly apply certain pressure to the upper and lower cavity of two active cylinder 4 by proportioning pump 15 passing ratio valves 14, and the flow of controlling active cylinder 4 regulates the speed of drill string upstroke, thereby realize the Active Compensation that precision is higher.
The course of work of apparatus of the present invention is:
Tourist bus 6 and overhead traveling crane are wound up as one by drilling line, and expansion loop is hung in the middle of derrick.The epicoele of passive cylinder 5 communicates with atmosphere, and cavity of resorption is connected with the liquid end of accumulator 13 by high-pressure hose, and the work gas tank 12 that the appendix of accumulator 13 other ends is larger with a pool-size is connected, the weight that the air pressure of work gas tank 12 is carrying drill string.Bar chamber fixed end and the cylinder body fixed end of active cylinder 4 and passive cylinder 5 are connected to an integral frame, and common drive sprocket 1 also drives chain 2 and lower support frame 8 is made upper and lower heave movement.Locking cylinder 10 is fixed on the side of upper support frame 7, in the time making a trip or stop boring, can upper support frame 7 and 8 lockings of lower support frame be integrated with locking cylinder 10, and expansion loop will not compensate work.In the time of normal work, locking cylinder 10 releases, the air pressure of work gas tank 12 is supporting the weight of DRILL-STRING SYSTEM, and it acts on similar air spring, and the heave movement of drill string is had to certain cushioning effect.Simultaneously according to the Heaving Signal that hull and compensating cylinder detected in real time, calculate the difference of the two, and this value is fed back to controller, controller adjusts by control ratio valve 14 and proportioning pump 15 flow that enters active cylinder 4, piston rod is moved to the contrary direction of drill string actual motion, finally make drill string ensure relative static with shaft bottom.
Apparatus of the present invention are the active compensation arrangement of increment, main by passive compensating cylinder and Active Compensation cylinder by the drive sprocket chain stroke that affords redress, the compensation stroke providing to drill string is a times of compensating cylinder stroke, and two parallel active cylinder of arranging realize more accurate Active Compensation in passive cylinder one side.This expansion loop has adopted parallel Active Compensation control structure, and control mode is simple and reliable, and control accuracy is higher, simultaneously pitch increased type sprocket wheel chain compensation arrangement Structure Decreasing the whole height of expansion loop, also make the height of supporting derrick reduce.
In the process of apparatus of the present invention drilling well on floating ocean platform, drill string on platform along with wave heave movement, when using after this device, can greatly reduce the up and down heave movement of drill string with wave, maintenance relative static conditions for seabed, like this, the drill bit of drill string bottom is relatively stable to the pressure in shaft bottom, not only improve the life-span of drill bit, also greatly improved the efficiency of creeping into.
Claims (4)
1. a pitch increased type active compensation device, its feature is: comprise upper support frame (7), the two ends of upper support frame (7) are a parallel active cylinder (4) and the passive cylinder (5) of being provided with respectively; On the common footstock of active cylinder (4) piston rod of every end and passive cylinder (5) piston rod, be provided with one group of sprocket wheel (1), upper support frame (7) two ends are upwards connected with respectively a set of chain (3), every cover chain (3) is fixedly hung and connects by the lower support frame (8) after one group of sprocket wheel (1) of top correspondence and below upper support frame (7) respectively, and each active cylinder (4) is all connected with controlling organization with passive cylinder (5).
2. pitch increased type active compensation device according to claim 1, its feature is: described controlling organization is divided into passive compensation and two parts of Active Compensation,
Passive compensation comprises accumulator (13), the input of accumulator (13) is communicated with high pressure gas holder (11) and work gas tank (12) simultaneously, and the output of accumulator (13) is communicated with two passive cylinders (5) simultaneously;
Active Compensation comprises proportioning pump (15), proportioning pump (15) and proportioning valve (14) control connection, and proportioning valve (14) is communicated with two active cylinder (4) simultaneously.
3. pitch increased type active compensation device according to claim 1, its feature is: between described upper support frame (7) and lower support frame (8), locking cylinder (10) is installed.
4. pitch increased type active compensation device according to claim 1, its feature is: described every group of sprocket wheel (1) is respectively arranged with a sprocket wheel guard shield (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410191002.3A CN104005715A (en) | 2014-05-07 | 2014-05-07 | Distance increasing type driving heave compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410191002.3A CN104005715A (en) | 2014-05-07 | 2014-05-07 | Distance increasing type driving heave compensation device |
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| CN104005715A true CN104005715A (en) | 2014-08-27 |
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| CN201410191002.3A Pending CN104005715A (en) | 2014-05-07 | 2014-05-07 | Distance increasing type driving heave compensation device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105317451A (en) * | 2015-10-30 | 2016-02-10 | 徐州猎奇商贸有限公司 | Portable large-flow pump station device |
| CN105386781A (en) * | 2015-10-30 | 2016-03-09 | 徐州猎奇商贸有限公司 | Multipurpose large-flow pump station |
| CN107339071A (en) * | 2017-02-24 | 2017-11-10 | 中建钢构有限公司 | A kind of floating type well drilling heave compensator |
| CN113124007A (en) * | 2021-03-08 | 2021-07-16 | 广州海洋地质调查局 | Control method and system for lifting and heave compensation of drilling machine |
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| US20070158076A1 (en) * | 2006-01-11 | 2007-07-12 | Hollingsworth Jimmy L Jr | Stand compensator |
| CN101130949A (en) * | 2007-09-12 | 2008-02-27 | 中国石油大学(华东) | Drilling column heave compensator for floating drill platform in the sea |
| CN101382042A (en) * | 2008-10-17 | 2009-03-11 | 中国石油大学(华东) | Ocean floating drill platform string heave compensation device |
| CN101654145A (en) * | 2009-09-30 | 2010-02-24 | 宝鸡石油机械有限责任公司 | Ocean floating type drilling platform crown-block heave compensator |
| CN201474609U (en) * | 2009-08-19 | 2010-05-19 | 宝鸡石油机械有限责任公司 | Runner wagon type drilling rod heave compensation device for floating drilling platform |
| CN102606088A (en) * | 2012-04-01 | 2012-07-25 | 西南石油大学 | Gear-rack displacement multiplication type drill string heave compensator for floating drilling platform |
| CN102943636A (en) * | 2012-11-22 | 2013-02-27 | 中国石油大学(北京) | Winch heave compensation device for ocean floating drilling platform |
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2014
- 2014-05-07 CN CN201410191002.3A patent/CN104005715A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20070158076A1 (en) * | 2006-01-11 | 2007-07-12 | Hollingsworth Jimmy L Jr | Stand compensator |
| CN101130949A (en) * | 2007-09-12 | 2008-02-27 | 中国石油大学(华东) | Drilling column heave compensator for floating drill platform in the sea |
| CN101382042A (en) * | 2008-10-17 | 2009-03-11 | 中国石油大学(华东) | Ocean floating drill platform string heave compensation device |
| CN201474609U (en) * | 2009-08-19 | 2010-05-19 | 宝鸡石油机械有限责任公司 | Runner wagon type drilling rod heave compensation device for floating drilling platform |
| CN101654145A (en) * | 2009-09-30 | 2010-02-24 | 宝鸡石油机械有限责任公司 | Ocean floating type drilling platform crown-block heave compensator |
| CN102606088A (en) * | 2012-04-01 | 2012-07-25 | 西南石油大学 | Gear-rack displacement multiplication type drill string heave compensator for floating drilling platform |
| CN102943636A (en) * | 2012-11-22 | 2013-02-27 | 中国石油大学(北京) | Winch heave compensation device for ocean floating drilling platform |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317451A (en) * | 2015-10-30 | 2016-02-10 | 徐州猎奇商贸有限公司 | Portable large-flow pump station device |
| CN105386781A (en) * | 2015-10-30 | 2016-03-09 | 徐州猎奇商贸有限公司 | Multipurpose large-flow pump station |
| CN107339071A (en) * | 2017-02-24 | 2017-11-10 | 中建钢构有限公司 | A kind of floating type well drilling heave compensator |
| CN113124007A (en) * | 2021-03-08 | 2021-07-16 | 广州海洋地质调查局 | Control method and system for lifting and heave compensation of drilling machine |
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Application publication date: 20140827 |
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