CN102032225B - Hydraulic system of continuous oil pipe radial drilling equipment - Google Patents
Hydraulic system of continuous oil pipe radial drilling equipment Download PDFInfo
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- CN102032225B CN102032225B CN 201010536085 CN201010536085A CN102032225B CN 102032225 B CN102032225 B CN 102032225B CN 201010536085 CN201010536085 CN 201010536085 CN 201010536085 A CN201010536085 A CN 201010536085A CN 102032225 B CN102032225 B CN 102032225B
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- 238000005553 drilling Methods 0.000 title abstract 2
- 238000006073 displacement reaction Methods 0.000 claims abstract description 18
- 239000000945 filler Substances 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 9
- 239000003921 oil Substances 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a hydraulic system of continuous oil pipe radial drilling equipment. The system comprises a high pressure pump hydraulic subsystem, a roller hydraulic subsystem and other element hydraulic subsystems, wherein the hydraulic subsystems adopt open volume throttle governing; the high pressure pump hydraulic subsystem comprises an open variable plunger pump, a load sensitive proportional valve, a balance valve and a constant displacement motor; the roller hydraulic subsystem comprises an open variable plunger pump, a roller motor, a pressure sensitive proportional valve, a shuttle valve, the balance valve and a two-position three-way electromagnetic valve; and the other elements hydraulic subsystems comprise seven parallel circuits formed by seven integrated proportional valves, each single circuit is formed by the proportional valve, the constant displacement motor and the balance valve, and the circuits do not interfere with each other when working. Because the hydraulic system has simple structure, and the load sensitive control technology is also adopted, the system power loss is less, and the efficiency is far higher than that of a common hydraulic system.
Description
Technical field
The present invention relates to a kind of hydraulic system, particularly a kind of hydraulic system of coiled tubing radial direction well equipment.
Background technique
The radial direction well technology is a kind of means that low-permeability oil gas reservoir, viscous crude, old filed, marginal oil field and cbm development provide economical and efficient exploitation approach that can be.With early stage radial direction well compared with techniques; At present novel radial direction well technology need not be milled and reaming hole in the sleeve pipe forging; Do not need operations such as complicated deflecting and TRAJECTORY CONTROL yet; Just can in existing pit shaft, accomplish from the vertical duction level, and then more easily get out a plurality of radially small horizontal holes in formation at target locations, construction operation efficient is greatly improved.
Coiled tubing radial direction well equipment is the core of this novel radial direction well complete sets of Techniques technology, mainly removes downhole tool and high pressure water jet is provided for the radial direction well operation through continuous pipe.At present very high from the coiled tubing radial direction well equipment price of external import; And what the hydraulic system of equipment adopted is closed system; Simultaneously, need to be equipped with the slippage pump and the fuel tank of small flow usually, so cause that system architecture is complicated, heating value is big for the leakage in the bucking-out system.
Summary of the invention
The technical problem that the present invention will solve provides a kind of hydraulic system of coiled tubing radial direction well equipment, thereby this hydraulic system structure is simple, the little system energy loss that reduced of heating value, and control also more steadily, reliably.
In order to address the above problem, the invention provides a kind of hydraulic system of coiled tubing radial direction well equipment, comprising: high-pressure service pump hydraulic subsystem, cylinder hydraulic subsystem and other element hydraulic subsystems.Said hydraulic subsystem all adopts open type volume throttle grverning.Described high-pressure service pump hydraulic subsystem comprises: open type Variable plunger pump, load-sensitive Proportional valve, equilibrium valve and fixed displacement motor; Described open type variable piston pump discharge is connected with load-sensitive Proportional valve filler opening; Said load-sensitive Proportional valve actuator port is connected with fixed displacement motor through oil pipe, is connected to equilibrium valve before the said fixed displacement motor; Described cylinder hydraulic subsystem comprises: open type Variable plunger pump, drum motor, presser sensor Proportional valve, shuttle valve, equilibrium valve and two-position three way magnetic valve; Described open type variable piston pump discharge is connected with presser sensor Proportional valve filler opening; Said presser sensor Proportional valve actuator port is connected with drum motor through oil pipe; Be connected to shuttle valve and equilibrium valve before the said drum motor, said two-position three way magnetic valve is a scene 2 formula structure into; Described other element hydraulic subsystems comprise: through seven shunt circuits of seven conjuncted Proportional valves compositions; Do not disturb mutually during each loop works; Wherein the hoist cylinder loop is made up of Proportional valve, hoist cylinder and hydraulic lock, and other six loops are made up of Proportional valve, fixed displacement motor and equilibrium valve.
The present invention compared with prior art has following advantage:
1, because hydraulic subsystem of the present invention adopts is open type hydraulic system, so whole system is simple in structure.
2, because the present invention has adopted the load-sensitive control technique, so system power dissipation is lower, efficient is far above conventional hydraulic system.High efficiency, power loss mean the saving and the lower heating value of hydraulic system of fuel for a short time simultaneously.
3, because hydraulic subsystem of the present invention all adopts is the volume throttle grverning, this system flow control circuit does not have spill losses, and speed stability is also better, so system effectiveness is higher, heating value is little.
4, because hydraulic subsystem of the present invention all is equipped with equilibrium valve before fixed displacement motor,, guaranteed that motor running is more steady so overcome the problem of motor stall.
5, because the drum braking of cylinder hydraulic subsystem of the present invention has partly adopted caliper disc brake, braking is steadily reliable, in emergency circumstances can brake through automatically controlled mode.
Description of drawings
Fig. 1 is a coiled tubing radial direction well equipment hydraulic system schematic representation of the present invention
Wherein: 1 open type Variable plunger pump A, 2 load-sensitive Proportional valves, 3 equilibrium valve A, 4 fixed displacement motor A, 5 open type Variable plunger pump C, 6 conjuncted Proportional valves; 7 equilibrium valve C, 8 generator motors, 9 comb motors, 10 pump motor A, 11 pump motor B; 12 pump motor C, 13 fan motors, 14 hoist cylinders, 15 hydraulic lock, 16 open type Variable plunger pump B; 17 presser sensor Proportional valves, 18 two-position three way magnetic valves, 19 shuttle valves, 20 equilibrium valve B, 21 drum motor.
Embodiment
Specify the hydraulic system of coiled tubing radial direction well equipment of the present invention below in conjunction with accompanying drawing.As shown in Figure 1, comprise high-pressure service pump hydraulic subsystem, cylinder hydraulic subsystem and other element hydraulic subsystems.Said hydraulic subsystem all adopts open type volume throttle grverning.Described high-pressure service pump hydraulic subsystem comprises: open type Variable plunger pump A 1, load-sensitive Proportional valve 2, equilibrium valve A 3, fixed displacement motor A4; Described open type Variable plunger pump A1 outlet is connected with load-sensitive Proportional valve 2 filler openings; Said load-sensitive Proportional valve 2 actuator ports are connected with fixed displacement motor A4 through oil pipe, are connected to equilibrium valve A3 before the said fixed displacement motor A4; Described cylinder hydraulic subsystem comprises: open type Variable plunger pump B16, drum motor 21, presser sensor Proportional valve 17, shuttle valve 19, equilibrium valve B20 and two-position three way magnetic valve 18; Described open type Variable plunger pump B16 outlet is connected with presser sensor Proportional valve 17 filler openings; Said presser sensor Proportional valve 17 actuator ports are connected with drum motor 21 through oil pipe; Be connected to shuttle valve 19 and equilibrium valve B20 before the said drum motor 21, said two-position three way magnetic valve 18 is a scene 2 formula structure into; Described other element hydraulic subsystems comprise: open type Variable plunger pump C5, conjuncted Proportional valve 6, equilibrium valve C7, generator motor 8, comb motor 9, pump motor A 10, pump motor B 11, pump motor C 12, fan motor 13, hoist cylinder 14, hydraulic lock 15; Said open type Variable plunger pump C5 forms seven shunt circuits through conjuncted Proportional valve 6; Do not disturb mutually during each loop works; Wherein the hoist cylinder loop is made up of Proportional valve, hoist cylinder and hydraulic lock, and other six loops are made up of Proportional valve, fixed displacement motor and equilibrium valve.
The working procedure of high-pressure service pump hydraulic subsystem of the present invention is following: open type Variable plunger pump A1 is under the driving of motor; Hydraulic oil is offered the compensator in the load-sensitive Proportional valve 2; Hydraulic system will be in a kind of low pressure standby operating mode under the effect of oil liquid pressure this moment.After the spool of the position control valve in the responsive Proportional valve 2 of control load moves; Open type Variable plunger pump A1 open type provides bigger flow to system; Promote fixed displacement motor A4 rotation and drive loaded work piece, open type Variable plunger pump A1 will regulate discharge capacity and working pressure automatically to satisfy system to different pressures and flow requirements this moment.Be connected to equilibrium valve A3 before the fixed displacement motor A4, make that the working procedure of motor is more steady.When open type Variable plunger pump A1 is in the high pressure holding state; Open type Variable plunger pump A1 fuel cut-off; The flow that necessity only is provided is to keep the internal leakage of system in the high pressure wait process, so the power loss of system is lower, efficient is far above conventional hydraulic system.High efficiency, power loss mean the saving and the lower heating value of hydraulic system of fuel for a short time simultaneously.
The working procedure of cylinder hydraulic subsystem of the present invention is following: when open type Variable plunger pump B16 works under motivational drive; Hydraulic oil is sent into presser sensor Proportional valve 17 from the outlet release; Spool through position control valve in the responsive Proportional valve 17 of pilot pressure moves, and hydraulic oil through the inlet that equilibrium valve B20 sends drum motor 21 to, is promoted drum motor 21 rotations and drives cylinder work; Adopt shuttle valve 19 fuel feeding to open roll brake during drum motor 21 proper functioning; Under emergency, make 17 times metas of presser sensor Proportional valve through automatically controlled button, two-position three way magnetic valve 18 gets electric back relief brake.Owing to adopted pressure sensitive device, can prevent continuously to be broken when pipe or downhole tool are hampered.
The working procedure of other element hydraulic subsystems of the present invention is following: open type Variable plunger pump C5 infeeds hydraulic oil in one manifold block; Form seven shunt circuits through conjuncted Proportional valve 6; Generator motor 8, comb motor 9, pump motor A 10, pump motor B 11, pump motor C 12, fan motor 13, hoist cylinder 14 passing ratio valve are respectively got oil from manifold block; Control the running of each motor then through hand control valve; All be connected to equilibrium valve C7 in each loop before the motor, each loop works alone and does not disturb mutually.The hoist cylinder loop is connected to a hydraulic lock 15, glides voluntarily under action of gravity to prevent oil cylinder.
Claims (1)
1. the hydraulic system of a coiled tubing radial direction well equipment comprises high-pressure service pump hydraulic subsystem, cylinder hydraulic subsystem and other element hydraulic subsystems, and it is characterized in that: said hydraulic subsystem all adopts open type volume throttle grverning,
Described high-pressure service pump hydraulic subsystem comprises: open type Variable plunger pump A (1), load-sensitive Proportional valve (2), equilibrium valve A (3), fixed displacement motor A (4); Described open type Variable plunger pump A (1) outlet is connected with load-sensitive Proportional valve (2) filler opening; Said load-sensitive Proportional valve (2) actuator port is connected the preceding equilibrium valve A (3) that is connected to of said fixed displacement motor A (4) through oil pipe with fixed displacement motor A (4);
Described cylinder hydraulic subsystem comprises: open type Variable plunger pump B (16), drum motor (21), presser sensor Proportional valve (17), shuttle valve (19), equilibrium valve B (20) and two-position three way magnetic valve (18); Described open type Variable plunger pump B (16) outlet is connected with presser sensor Proportional valve (17) filler opening; Said presser sensor Proportional valve (17) actuator port is connected with drum motor (21) through oil pipe; Preceding shuttle valve (19) and the equilibrium valve B (20) of being connected to of said drum motor (21), said two-position three way magnetic valve (18) are scene 2 formula structure into;
Described other element hydraulic subsystems comprise: open type Variable plunger pump C (5), conjuncted Proportional valve (6), equilibrium valve C (7), generator motor (8), comb motor (9), pump motor A (10), pump motor B (11), pump motor C (12), fan motor (13), hoist cylinder (14), hydraulic lock (15); Said open type Variable plunger pump C (5) forms seven shunt circuits through conjuncted Proportional valve (6); Each loop works alone and does not disturb mutually; Wherein the hoist cylinder loop is made up of conjuncted Proportional valve (6), hoist cylinder (14) and hydraulic lock (15); Other six loops are: first loop is made up of conjuncted Proportional valve (6), generator motor (8) and equilibrium valve C (7); Second loop is made up of conjuncted Proportional valve (6), comb motor (9) and equilibrium valve C (7); The 3rd loop is made up of conjuncted Proportional valve (6), pump motor A (10) and equilibrium valve C (7); The 4th loop is made up of conjuncted Proportional valve (6), pump motor B (11) and equilibrium valve C (7); The 5th loop is made up of conjuncted Proportional valve (6), pump motor C (12) and equilibrium valve C (7); The 6th loop is made up of conjuncted Proportional valve (6), fan motor (13) and equilibrium valve C (7), and wherein generator motor (8), comb motor (9), pump motor A (10), pump motor B (11), pump motor C (12), fan motor (13) are fixed displacement motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010536085 CN102032225B (en) | 2010-11-09 | 2010-11-09 | Hydraulic system of continuous oil pipe radial drilling equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010536085 CN102032225B (en) | 2010-11-09 | 2010-11-09 | Hydraulic system of continuous oil pipe radial drilling equipment |
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| Publication Number | Publication Date |
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| CN102032225A CN102032225A (en) | 2011-04-27 |
| CN102032225B true CN102032225B (en) | 2012-12-19 |
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| CN 201010536085 Expired - Fee Related CN102032225B (en) | 2010-11-09 | 2010-11-09 | Hydraulic system of continuous oil pipe radial drilling equipment |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359351B (en) * | 2011-10-13 | 2013-10-16 | 中国石油天然气股份有限公司 | Hydraulic control system for continuous pipe tripping device |
| CN102635581B (en) * | 2012-05-03 | 2014-07-16 | 泸州长江石油工程机械有限公司 | Hydraulic control system for ultra-deep radial well operations |
| CN103148061A (en) * | 2013-03-07 | 2013-06-12 | 江苏谷登工程机械装备有限公司 | Horizontal directional driller hydraulic pressure electric joint control system |
| CN107088284A (en) * | 2017-07-07 | 2017-08-25 | 合肥巨澜安全技术有限责任公司 | Far Range firefighting fire extinguishing robot device |
Citations (5)
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|---|---|---|---|---|
| CN101122233A (en) * | 2007-08-08 | 2008-02-13 | 煤炭科学研究总院西安研究院 | Caterpillar belt self-walking type tunnel drilling rig hydraulic system |
| CN101260789A (en) * | 2008-04-17 | 2008-09-10 | 中国石油天然气集团公司 | Speed matching control device between continuous tube apparatus infusion head and drum |
| CN101550921A (en) * | 2009-05-05 | 2009-10-07 | 上海电气液压气动有限公司 | Variable control system of plunger variable pump |
| CN101644153A (en) * | 2009-08-04 | 2010-02-10 | 大连交通大学 | Synchronous control system of injection head and wound roll of continuous oil pipe operating machine and control method thereof |
| CN101655005A (en) * | 2009-08-04 | 2010-02-24 | 大连交通大学 | Hydraulic system of continuous string coiled tubing unit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004084704A (en) * | 2002-08-23 | 2004-03-18 | Shin Caterpillar Mitsubishi Ltd | Hydraulic pressure control device of working machine having working tool |
| JP5424668B2 (en) * | 2009-02-18 | 2014-02-26 | Ｉｈｉ建機株式会社 | Hydraulic circuit for construction machinery |
-
2010
- 2010-11-09 CN CN 201010536085 patent/CN102032225B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101122233A (en) * | 2007-08-08 | 2008-02-13 | 煤炭科学研究总院西安研究院 | Caterpillar belt self-walking type tunnel drilling rig hydraulic system |
| CN101260789A (en) * | 2008-04-17 | 2008-09-10 | 中国石油天然气集团公司 | Speed matching control device between continuous tube apparatus infusion head and drum |
| CN101550921A (en) * | 2009-05-05 | 2009-10-07 | 上海电气液压气动有限公司 | Variable control system of plunger variable pump |
| CN101644153A (en) * | 2009-08-04 | 2010-02-10 | 大连交通大学 | Synchronous control system of injection head and wound roll of continuous oil pipe operating machine and control method thereof |
| CN101655005A (en) * | 2009-08-04 | 2010-02-24 | 大连交通大学 | Hydraulic system of continuous string coiled tubing unit |
Non-Patent Citations (2)
| Title |
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| JP特开2004-84704A 2004.03.18 |
| JP特开2010-190330A 2010.09.02 |
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| CN102032225A (en) | 2011-04-27 |
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Granted publication date: 20121219 |