CN102900381A - Full hydraulic energy-saving snubbing aggregate unit - Google Patents
Full hydraulic energy-saving snubbing aggregate unit Download PDFInfo
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- CN102900381A CN102900381A CN201210416549XA CN201210416549A CN102900381A CN 102900381 A CN102900381 A CN 102900381A CN 201210416549X A CN201210416549X A CN 201210416549XA CN 201210416549 A CN201210416549 A CN 201210416549A CN 102900381 A CN102900381 A CN 102900381A
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Abstract
The invention discloses a full hydraulic energy-saving snubbing aggregate unit which comprises an electromotor, an oil pump, a master oil cylinder and an oil auxiliary cylinder. Both the master oil cylinder and the auxiliary oil cylinder are connected with the oil pump; the electromotor provides power to the master oil cylinder and the auxiliary oil cylinder through the oil pump; the master oil cylinder and the auxiliary oil cylinder are respectively and fixedly mounted on a stand; the snubbing aggregate unit further comprises a main traction wire cable, an auxiliary traction wire cable, a main pulley block and an auxiliary pulley block; when a piston rod of the master oil cylinder stretches out, the master oil cylinders lift up a mobile slip through the main pulley block and the main traction wire cable; when the piston rod of the master oil cylinder draws back, the mobile slip drops under the action of gravity; when a piston rod of the auxiliary oil cylinder stretches out, the auxiliary oil cylinder pulls down the mobile slip through the auxiliary pulley block and the auxiliary traction wire cable; and when the piston rod of the auxiliary oil cylinder draws back, the mobile slip drops under the action of gravity. The full hydraulic energy-saving snubbing aggregate unit is high in work efficiency and low in cost, and can not only reach the pipe column lifting rate of conventional well workover but also save big actually consumed power. The full hydraulic energy-saving snubbing aggregate can form an integrated skid-mounted structure, so transporting and removing vehicles are reduced.
Description
Technical field
The present invention relates to a kind of and pipe string of oil-water well rises, lower operation technique equipment, relate in particular to a kind of all-hydraulic energy-conservation Operating Pressure composite set for pressure of blowout prevention, lower tubular column operation.
Background technology
Along with the continuous popularization of environmental protection operation, have the oil-water well of pressure on the oil field, generally all to go up Operating Pressure equipment during operation.At present, using is blowout prevention Operating Pressure well head and the control system thereof that specialized factory produces the most widely, and conventional tractor hoist or the wheeled workover rig mutual compatibility suitable with derrick height are finished Operating Pressure work.See Fig. 1, there is following defective in this type of working equipment: the one, and during lower oil tube with pressure, can only use stroke is gantry oil cylinder 1 about 3 meters, progressively rises or lower oil pipe by stationary slip 2 and mobile slips 3.Because the cut lengths of standard oil pipe is 9.6 meters, each oil pipe trips out or be lowered to well head to be needed about 3 times.Efficient is low.The 2nd, Blowout prevention wellhead control power is generally selected the diesel engine about 160-220KW, and the power of wheeled workover rig is generally also about 200-240KW, thereby general power is usually more than 400KW.Cost consumption is larger.Three is that two power are independent separately, and the train number that removal of home needs is more.
Summary of the invention
Technical scheme to be solved by this invention is for above-mentioned the deficiencies in the prior art, and a kind of high efficiency, all-hydraulic energy-conservation Operating Pressure composite set that cost is low are provided.
For solving the problems of the technologies described above, the technical scheme that the present invention takes is: a kind of all-hydraulic energy-conservation Operating Pressure composite set comprises support, blowout preventer wellhead part, stationary slip, terrace part and is used for rising and putting down the mobile slips of lower oil pipe; Terrace part is fixedly mounted on the support, and stationary slip is fixedly installed on the terrace part; It is characterized in that: also comprise motor, oil pump, master cylinder and auxiliary oil cylinder; Master cylinder and auxiliary oil cylinder all are connected with oil pump, and motor provides power by oil pump for master cylinder and auxiliary oil cylinder; Master cylinder and auxiliary oil cylinder are fixedly mounted on respectively on the support; Also comprise main traction steel rope of cable, secondary traction steel rope of cable, head pulley group and auxiliary pulley group; When the piston rod of master cylinder stretched out, master cylinder rose mobile slips by head pulley group and main pull rope, and when the piston rod of master cylinder shrank, mobile slips relied on self gravitation to descend; When the piston rod of auxiliary oil cylinder stretched out, auxiliary oil cylinder pulled down mobile slips by auxiliary pulley group and secondary pull rope, and when the piston rod of auxiliary oil cylinder shrank, mobile slips relied on self gravitation to descend.
As further improved technical scheme of the present invention, the first movable pulley and second movable pulley of the piston rod end that described head pulley group comprises the first fixed pulley of being fixed on the support, be fixed on master cylinder, be fixed on the second fixed pulley on the master cylinder cylinder body; Described auxiliary pulley group comprises the 3rd fixed pulley, the 3rd movable pulley that is fixed on the piston rod end of auxiliary oil cylinder that are fixed on the support, is fixed on the 4th fixed pulley and the 5th fixed pulley on the support.
As further improved technical scheme of the present invention, in the described head pulley group, moving fixed pulley is than being 1:4.
As further improved technical scheme of the present invention, also comprise the accumulator that is arranged on the support; When master cylinder or auxiliary oil cylinder is not worked or oil pump can satisfy master cylinder or auxiliary oil cylinder work takes, oil pump is to the accumulator fuel feeding; When oil pump can not satisfy master cylinder or auxiliary oil cylinder work takes, accumulator is oil-filled to master cylinder or auxiliary oil cylinder.
Master cylinder of the present invention and auxiliary oil cylinder share a cover hydraulic power unit, namely share a hydraulic pump; Large proportion by accumulator uses, and not only reaches the pipe speed that rises of conventional well workover, can also save larger actual consumption common ratio; Each parts is unified on the support, forms integrated skid structure, has reduced transhipment removal of home vehicle.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is existing Operating Pressure device structure schematic diagram.
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described further.
The specific embodiment
Referring to Fig. 1, this all-hydraulic energy-conservation Operating Pressure composite set comprises support 2, blowout preventer wellhead part 1, stationary slip 3, terrace part 4 and is used for rising and putting down the mobile slips 5 of lower oil pipe; Terrace part 4 is fixedly mounted on the support 2, and stationary slip 3 is fixedly installed on the terrace part 4; Also comprise motor, oil pump, master cylinder 8 and auxiliary oil cylinder 9; Master cylinder 8 is connected with auxiliary oil cylinder and all is connected with oil pump, and motor provides power by oil pump for master cylinder 8 and auxiliary oil cylinder 9; Master cylinder 8 and auxiliary oil cylinder 9 are fixedly mounted on respectively on the support; Also comprise main traction steel rope of cable 6, secondary traction steel rope of cable 7, head pulley group and auxiliary pulley group; When the piston rod of master cylinder 8 stretched out, master cylinder 8 rose mobile slips 5 by head pulley group and main pull rope 6, and when the piston rod of master cylinder 8 shrank, mobile slips 5 relied on self gravitation to descend; When the piston rod of auxiliary oil cylinder 9 stretched out, auxiliary oil cylinder 9 pulled down mobile slips 5 by auxiliary pulley group and secondary pull rope 7, and when the piston rod of auxiliary oil cylinder 9 shrank, mobile slips 5 relied on self gravitation to descend.The first movable pulley 11 and second movable pulley 12 of the piston rod end that described head pulley group comprises the first fixed pulley 10 of being fixed on the support 2, be fixed on master cylinder 8, be fixed on the second fixed pulley 13 on master cylinder 8 cylinder bodies; Described auxiliary pulley group comprises the 3rd fixed pulley 14, the 3rd movable pulley 15 that is fixed on the piston rod end of auxiliary oil cylinder 9 that are fixed on the support 2, is fixed on the 4th fixed pulley 16 and the 5th fixed pulley 17 on the support 2.In the described head pulley group, moving fixed pulley is than being 1:4.Also comprise the accumulator 18 that is arranged on the support 2; When master cylinder 8 or auxiliary oil cylinder 9 is not worked or oil pump can satisfy master cylinder 8 or auxiliary oil cylinder 9 work institutes and takes, oil pump is to accumulator 18 fuel feeding; Take when oil pump can not satisfy master cylinder 8 or auxiliary oil cylinder 9 work institutes, accumulator 18 is oil-filled to master cylinder 8 or auxiliary oil cylinder 9.
This all-hydraulic energy-conservation Operating Pressure composite set is designed with master cylinder 8 and auxiliary oil cylinder 9, and 4 meters of the strokes of master cylinder 8 can be realized 16 meters stroke after the head pulley group by 1:4.3 meters of the strokes of auxiliary oil cylinder 9 after the auxiliary pulley group by 1:2, can be realized 6 meters stroke.When down-hole pressure is lower, oil pipe deadweight is larger, and can have master cylinder 8 to realize when removing pipe this moment, namely by main rope 6, reaches the purpose of lower oil tube by assembly pulley tethered sliding slips 5.When down-hole pressure is larger, when oil pipe produced top trend, through the 4th fixed pulley 16 and the 5th fixed pulley 17, oppositely tractive moved slips 5 to auxiliary oil cylinder 9, thereby reaches the purpose of the lower oil tube that control is arranged by secondary wire rope 7.
This all-hydraulic energy-conservation Operating Pressure composite set has been cancelled gantry oil cylinder in original wellhead assembly, reaches identical purpose by auxiliary oil cylinder, and effective travel has increased by one times.
This all-hydraulic energy-conservation Operating Pressure composite set is merged into a cover system with two original cover dynamical systems, and has adopted the accumulator of larger capacity, and actual installation general power has been saved operating cost greatly less than 70KW.Why adopt such design, the one, during because of preventer work, oil pipe does not move, thereby major and minor oil cylinder need not work.The 2nd, well head gantry oil cylinder is given up, and has reduced power configuration.The 3rd, be provided with the Accumulator arrangements of 720 liters of capacity, when major and minor oil cylinder is not worked, can allow oil pump oil-filled to accumulator, the motor energy storage is got up, when major and minor oil cylinder need to stretch out piston, accumulator can discharge a large amount of high-voltage oil liquids at short notice, thereby has guaranteed needed movement velocity under the rated load.When the descent of piston of master cylinder, because the part quality of being concentrated on the piston rod of master cylinder is larger, the back pressure that deadweight produces can also be to the additional certain energy of accumulator, and energy-saving effect is obvious.
Claims (4)
1. all-hydraulic energy-conservation Operating Pressure composite set comprises support (2), blowout preventer wellhead part (1), stationary slip (3), terrace part (4) and is used for rising and putting down the mobile slips (5) of lower oil pipe; Terrace part (4) is fixedly mounted on the support (2), and stationary slip (3) is fixedly installed on the terrace part (4); It is characterized in that: also comprise motor, oil pump, master cylinder (8) and auxiliary oil cylinder (9); Master cylinder (8) is connected 9 with auxiliary oil cylinder) all be connected with oil pump, motor is that master cylinder (8) and auxiliary oil cylinder (9) provide power by oil pump; Master cylinder (8) and auxiliary oil cylinder (9) are fixedly mounted on respectively on the support; Also comprise main traction steel rope of cable (6), secondary traction steel rope of cable (7), head pulley group and auxiliary pulley group; When the piston rod of master cylinder (8) stretched out, master cylinder (8) rose mobile slips (5) by head pulley group and main pull rope (6), and when the piston rod of master cylinder (8) shrank, mobile slips (5) relied on self gravitation to descend; When the piston rod of auxiliary oil cylinder 9 stretched out, auxiliary oil cylinder (9) pulled down mobile slips (5) by auxiliary pulley group and secondary pull rope (7), and when the piston rod of auxiliary oil cylinder (9) shrank, mobile slips (5) relied on self gravitation to descend.
2. all-hydraulic energy-conservation Operating Pressure composite set according to claim 1 is characterized in that: the first movable pulley (11) and second movable pulley (12) of the piston rod end that described head pulley group comprises the first fixed pulley (10) of being fixed on the support (2), be fixed on master cylinder (8), be fixed on the second fixed pulley (13) on master cylinder 8 cylinder bodies; The 3rd movable pulley (15) of the piston rod end that described auxiliary pulley group comprises the 3rd fixed pulley (14) that is fixed on the support (2), be fixed on auxiliary oil cylinder (9), be fixed on the 4th fixed pulley (16) and the 5th fixed pulley (17) on the support (2).
3. all-hydraulic energy-conservation Operating Pressure composite set according to claim 2 is characterized in that: in the described head pulley group, move fixed pulley than being 1:4.
4. it is characterized in that: also comprise the accumulator (18) that is arranged on the support (2) according to claim 1 and 2 or 3 described all-hydraulic energy-conservation Operating Pressure composite sets; When master cylinder (8) or auxiliary oil cylinder (9) is not worked or oil pump can satisfy master cylinder (8) or auxiliary oil cylinder (9) work institute and takes, oil pump is to accumulator (18) fuel feeding; Take when oil pump can not satisfy master cylinder (8) or auxiliary oil cylinder (9) work institute, accumulator (18) is oil-filled to master cylinder (8) or auxiliary oil cylinder (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210416549XA CN102900381A (en) | 2012-10-27 | 2012-10-27 | Full hydraulic energy-saving snubbing aggregate unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210416549XA CN102900381A (en) | 2012-10-27 | 2012-10-27 | Full hydraulic energy-saving snubbing aggregate unit |
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| CN102900381A true CN102900381A (en) | 2013-01-30 |
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| CN201210416549XA Pending CN102900381A (en) | 2012-10-27 | 2012-10-27 | Full hydraulic energy-saving snubbing aggregate unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132929A (en) * | 2013-03-19 | 2013-06-05 | 东营鸿昇机械设备有限公司 | Vehicle-mounted long-stroke operation machine under pressure |
| CN103850658A (en) * | 2014-02-14 | 2014-06-11 | 上海大学 | Intelligent electric drifting device and intelligent electric drifting method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103850658A (en) * | 2014-02-14 | 2014-06-11 | 上海大学 | Intelligent electric drifting device and intelligent electric drifting method |
| CN103850658B (en) * | 2014-02-14 | 2016-03-30 | 上海大学 | Intelligent electric drifting device adopting and method |
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Application publication date: 20130130 |