CN204186336U - Oil well annulus logging wellhead assembly - Google Patents
Oil well annulus logging wellhead assembly Download PDFInfo
- Publication number
- CN204186336U CN204186336U CN201420600160.5U CN201420600160U CN204186336U CN 204186336 U CN204186336 U CN 204186336U CN 201420600160 U CN201420600160 U CN 201420600160U CN 204186336 U CN204186336 U CN 204186336U
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- branch road
- valve
- oil
- polished rod
- fuel tank
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Abstract
The utility model relates to oil exploitation device technique field, it is a kind of oil well annulus logging wellhead assembly, it comprises driving head, Hydraulic Station, polished rod and screw pump, driving head comprises hydraulic motor, the clutch end of hydraulic motor is fixedly connected with the upper end of polished rod, and the lower end of polished rod is fixedly connected with the power intake of screw pump.The utility model adopts Hydraulic Station to provide power for screw pump; During power failure, hydraulic motor becomes oil pump, can make screw pump, polished rod slow release torsion by flow speed control valve, can not cause screw pump, the polished rod accident such as torsional deformation or the de-mouth of generation under High Rotation Speed; Select low power drive motors, volume is little, and the supporting well head guide shoe of cable car need not be adopted to complete the test mode of conventional pumpingh well; Hydraulic motor, thrust bearing fuel tank assembly realize automatic lifting by elevating ram, carry out testing the enough spaces of outflow, reduce the labour intensity of workman for testing equipment enters down-hole.
Description
Technical field
the utility model relates to oil exploitation device technique field, is a kind of oil well annulus logging wellhead assembly.
Background technology
screw pump is the type of a kind of oil well pump developing application in recent years in the world rapidly, because it at the uniform velocity operates, the inertia loss of mechanical and liquid stream, the production of general oil well can be applicable to, high viscosity, the high production containing sand oil well can be applicable to again, meanwhile, screw pump have again safety, environmental protection, efficiency high, consume energy low, structure is simple, cheap, volume is little, the series of advantages such as easy to operate, has obtained the accreditation just having industry both at home and abroad.But current screw pump in use still has some problems: on the one hand, the ring that oil field uses is surveyed screw pump oil production device and is adopted 22 kw direct driving motor drive units, volume is large, and the supporting well head guide shoe of cable car can only be adopted when surveying negative pressure to realize, and working strength is large, time is long, and cost is high; On the other hand, when having a power failure, screw pump, polished rod etc., due to torsion, do return motion, and screw pump and polished rod can discharge torsion rapidly, cause screw pump and polished rod torsional deformation under High Rotation Speed, or the accidents such as de-mouth occur, and bring hidden danger to device security.
Summary of the invention
the utility model provides a kind of oil well annulus logging wellhead assembly, overcome the deficiency of above-mentioned prior art, its can effectively solve the volume that existing driving unit on screw pump exists large, survey negative pressure and can only adopt the problem that cable car supporting well head guide shoe realizes, working strength is large, the time is long, cost is high, and have a power failure time screw pump, polished rod etc. due to torsion, do return motion, screw pump and polished rod can discharge torsion rapidly, cause screw pump and polished rod torsional deformation under High Rotation Speed, or there is the accidents such as de-mouth, the problem of hidden danger is brought to device security.
the technical solution of the utility model is realized by following measures: a kind of oil well annulus logging wellhead assembly, comprise driving head, Hydraulic Station, polished rod and screw pump, wherein, driving head comprises hydraulic motor, the clutch end of hydraulic motor is fixedly connected with the upper end of polished rod, and the lower end of polished rod is fixedly connected with the power intake of screw pump; Hydraulic Station comprises fuel tank, the first branch road, the second branch road, the 3rd branch road, the first reversal valve and the second reversal valve, the lower end of the lower end of the first branch road, the lower end of the second branch road, the 3rd branch road is communicated with fuel tank respectively, first branch road is installed with oil pump and the first one way valve from the bottom to top successively, and the power intake of oil pump is fixedly connected with drive motors; Second branch road is installed with the second one way valve; The upper end of the first branch road is communicated with the first interface of the first reversal valve, the upper end of the 3rd branch road is by the second orifice of flow speed control valve and the first reversal valve, the first interface of hydraulic motor and the 3rd orifice of the first reversal valve, second interface of hydraulic motor is communicated with the first interface of the second reversal valve, the upper end of the second branch road and the second orifice of the second reversal valve, the middle part of the 3rd branch road is by the 3rd orifice of cooler and the second reversal valve.
here is the further optimization and/or improvements to above-mentioned utility model technical scheme:
above-mentioned driving head also comprises shock absorption coupler assembly, thrust bearing fuel tank assembly, adpting flange, hydraulic lifting flange, elevating ram, lifting expansion rail, packing seal assembly, polished rod blowout preventer, test valve and ring well logging mouth assembly, the clutch end of hydraulic motor is fixedly connected with the power intake of shock absorption coupler assembly, the clutch end of shock absorption coupler assembly is fixedly connected with polished rod, shock absorption coupler assembly is fixedly mounted on the upper end of adpting flange, the lower end of adpting flange is fixedly mounted on the upper end of hydraulic lifting flange, lifting expansion rail and elevating ram are fixedly mounted on ring well logging mouth assembly, the inside of elevating ram is provided with piston and piston rod, the lower end of hydraulic lifting flange is fixedly mounted on the upper end of piston rod and the upper end of lifting expansion rail, the lower end of polished rod is installed with packing seal assembly, polished rod blowout preventer and test valve.
above-mentioned first branch road is installed with electromagnetic relief valve; Or/and the power of drive motors is 11 kw.
the upper end of above-mentioned first branch road is installed with pressure sensor and pressure meter.
the first branch road between the oil-in of above-mentioned oil pump and fuel tank is installed with the first strainer valve; Or/and, the second branch road between the second one way valve and fuel tank is installed with the second strainer valve.
the utility model reasonable and compact in structure, easy to use, it adopts Hydraulic Station to provide power for screw pump, driven by motor oil pump rotates, oil pump drives hydraulic motor to rotate by hydraulic oil, and hydraulic motor is rotated by polished rod drive screw pump, makes liquid be given rise to ground by screw pump from underground; When having a power failure, screw pump, polished rod etc. are due to twisting force, do return motion, hydraulic motor becomes oil pump, screw pump, polished rod can be made to reverse slowly by flow speed control valve, slow release torsion, can not cause screw pump, the polished rod accident such as torsional deformation or the de-mouth of generation under High Rotation Speed, ensure device security; Select low power drive motors, volume is little, and the supporting well head guide shoe of cable car need not be adopted to complete the test mode of conventional pumpingh well; Hydraulic motor, thrust bearing fuel tank assembly realize automatic lifting by elevating ram, carry out testing the enough spaces of outflow for testing equipment enters down-hole, reduce the labour intensity of workman simultaneously, improve the efficiency of test, there is safe, laborsaving, easy, efficient feature.
Accompanying drawing explanation
accompanying drawing 1 is the main TV structure schematic diagram of the driving head of the utility model most preferred embodiment.
the left TV structure schematic diagram that accompanying drawing 2 is structure shown in accompanying drawing 1.
accompanying drawing 3 is the plan structure schematic diagram of structure shown in accompanying drawing 1.
accompanying drawing 4 is the syndeton schematic diagram of hydraulic lifting flange in accompanying drawing 1, elevating ram, lifting expansion rail.
accompanying drawing 5 is the hydraulic principle schematic diagram of the Hydraulic Station of the utility model most preferred embodiment.
coding in accompanying drawing is respectively: 1 is hydraulic motor, 2 is polished rod, 3 is fuel tank, 4 is the first branch road, 5 is the second branch road, 6 is the 3rd branch road, 7 is the first reversal valve, 8 is the second reversal valve, 9 is oil pump, 10 is the first one way valve, 11 is drive motors, 12 is the second one way valve, 13 is flow speed control valve, 14 is cooler, 15 is shock absorption coupler assembly, 16 is thrust bearing fuel tank assembly, 17 is adpting flange, 18 is hydraulic lifting flange, 19 is elevating ram, 20 is lifting expansion rail, 21 is packing seal assembly, 22 is polished rod blowout preventer, 23 is test valve, 24 is ring well logging mouth assembly, 25 is piston, 26 is piston rod, 27 is electromagnetic relief valve, 28 is pressure sensor, 29 is pressure meter, 30 is the first strainer valve, 31 is the second strainer valve.
Detailed description of the invention
the utility model by the restriction of following embodiment, can not determine concrete embodiment according to the technical solution of the utility model and actual conditions.
in the utility model, for convenience of description, the description of the relative position relation of each parts is all be described according to the Butut mode of Figure of description 5, as: the position relationship of forward and backward, upper and lower, left and right etc. determines according to the Butut direction of Figure of description 5.
below in conjunction with embodiment and accompanying drawing, the utility model is further described:
as shown in accompanying drawing 1,2,3,5, this oil well annulus logging wellhead assembly comprises driving head, Hydraulic Station, polished rod and screw pump, wherein, driving head comprises hydraulic motor 1, the clutch end of hydraulic motor 1 is fixedly connected with the upper end of polished rod 2, and the lower end of polished rod 2 is fixedly connected with the power intake of screw pump; Hydraulic Station comprises fuel tank 3, first branch road 4, second branch road 5, the 3rd branch road 6, first reversal valve 7 and the second reversal valve 8, the lower end of the lower end of the first branch road 4, the lower end of the second branch road 5, the 3rd branch road 6 is communicated with fuel tank 3 respectively, first branch road 4 is installed with from the bottom to top successively oil pump 9 and the first one way valve 10, the power intake of oil pump 9 is fixedly connected with drive motors 11; Second branch road 5 is installed with the second one way valve 12; The upper end of the first branch road 4 is communicated with the first interface of the first reversal valve 7, the second orifice of flow speed control valve 13 and the first reversal valve 7 is passed through in the upper end of the 3rd branch road 6, the first interface of hydraulic motor 1 and the 3rd orifice of the first reversal valve 7, second interface of hydraulic motor 1 is communicated with the first interface of the second reversal valve 8, the upper end of the second branch road 5 and the second orifice of the second reversal valve 8, the 3rd orifice of cooler 14 and the second reversal valve 8 is passed through at the middle part of the 3rd branch road 6.The utility model adopts Hydraulic Station and hydraulic motor 1 drive screw pump to rotate, the normal operation of screw pump is completed by hydraulic-driven, hydraulic motor 1 has the feature of the slow-speed of revolution, high pulling torque, therefore low power drive motors 11 can be selected, drive motors 11 volume is little, and the supporting well head guide shoe of cable car need not be adopted to complete the test mode of conventional pumpingh well.Discharge high pulling torque during screw pump low cruise, and there is self-reverse-rotation preventing function, can Automated condtrol be realized.Oil pump 9 starts, and drive hydraulic motor 1 to rotate, hydraulic motor 1 is fixedly connected with polished rod 2, drives whole screw pump system to rotate, liquid is given rise to ground from underground.When having a power failure, screw pump, polished rod 2 etc., due to twisting force, do return motion, hydraulic motor 1 becomes oil pump, polished rod 2 can be made to reverse slowly, slow release torsion by flow speed control valve 13, polished rod 2 accident such as torsional deformation or de-mouth under High Rotation Speed can not be caused, ensure device security.
according to actual needs, above-mentioned oil well annulus logging wellhead assembly can be made further optimization and/or improvements:
as accompanying drawing 1, 2, 3, shown in 4, above-mentioned driving head also comprises shock absorption coupler assembly 15, thrust bearing fuel tank assembly 16, adpting flange 17, hydraulic lifting flange 18, elevating ram 19, lifting expansion rail 20, packing seal assembly 21, polished rod blowout preventer 22, test valve 23 and ring well logging mouth assembly 24, the clutch end of hydraulic motor 1 is fixedly connected with the power intake of shock absorption coupler assembly 15, the clutch end of shock absorption coupler assembly 15 is fixedly connected with polished rod 2, shock absorption coupler assembly 15 is fixedly mounted on the upper end of adpting flange 17, the lower end of adpting flange 17 is fixedly mounted on the upper end of hydraulic lifting flange 18, lifting expansion rail 20 and elevating ram 19 are fixedly mounted on ring well logging mouth assembly 24, the inside of elevating ram 19 is provided with piston 25 and piston rod 26, the lower end of hydraulic lifting flange 18 is fixedly mounted on the upper end of piston rod 26 and the upper end of lifting expansion rail 20, and the lower end of polished rod 2 is installed with packing seal assembly 21, polished rod blowout preventer 22 and test valve 23.Like this, when carrying out pumping well testing operation, need hydraulic motor 1, thrust bearing fuel tank assembly 16 lifting 70cm, flow out enough spaces, testing equipment enters down-hole by ring well logging mouth assembly 24 and tests, hydraulic oil pipe snap joint is connected with two elevating rams 19, open oil pump 9, hydraulic oil by the piston 25 of two elevating ram 19 inside and piston rod 26 by hydraulic lifting flange 18 jack-up, two lifting expansion rails 20 also raise together simultaneously, the piston rod 26 of two lifting expansion rails 20 and two elevating rams 19 keeps level, hydraulic motor 1, thrust bearing fuel tank assembly 16 is high by steady lifting 70cm, stopping is suppressed, keep height, carry out pumping well testing work, achieve Automated condtrol, reduce the labour intensity of workman, improve testing efficiency.
as shown in Figure 5, above-mentioned first branch road 4 is installed with electromagnetic relief valve 27.When the pressure in the first branch road 4 is excessive, hydraulic oil flows into fuel tank 3 by electromagnetic relief valve 27, and release pressure plays a protective role.
as shown in Figure 5, the upper end of above-mentioned first branch road 4 is installed with pressure sensor 28 and pressure meter 29.Pressure meter 29 and pressure sensor 28 can observe the change with detected pressures, prevent hypertonia, break down.
as shown in Figure 5, the first branch road 4 between the oil-in of above-mentioned oil pump 9 and fuel tank 3 is installed with the first strainer valve 30.
as shown in Figure 5, the second branch road 5 between above-mentioned second one way valve 12 and fuel tank 3 is installed with the second strainer valve 31.Hydraulic oil filters out impurity by the first strainer valve 30 and the second strainer valve 31, keeps the clean of hydraulic oil, and the safety of equipment such as protection oil pump 9 and hydraulic motor 1 etc., increases the service life.
as shown in Figure 5, the power of above-mentioned drive motors 11 is 11kw.Adopt the drive motors 11 of 11 kw to drive oil pump 9, and drive hydraulic motor 1 by oil pump 9, the volume of drive motors 11 is little, consume energy low, lifting is convenient, the supporting well head guide shoe of cable car need not be adopted to complete the test jobs of conventional pumpingh well, reduce the labour intensity of workman, reduce the activity duration, cost-saving.
above technical characteristic constitutes most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
the use procedure of the utility model most preferred embodiment:
1, pumping operation process:
normal work: start oil pump 9, electromagnetic relief valve 27, first reversal valve 7, second reversal valve 8 is energized commutation simultaneously, hydraulic oil enters fuel tank 3 through the first strainer 30, oil pump 9, first one way valve 10, first reversal valve 7, hydraulic motor 1, second reversal valve 8, cooler 14, realize the rotation of hydraulic motor 1, hydraulic motor 1 is connected with polished rod 2, and the rotation of hydraulic motor 1 can the rotation of drive screw pump.Utilize the rotating speed of electrode variable frequency adjustment drive motors 11, change the flow of oil pump 9, realize the speed governing of hydraulic motor 1.Utilize pressure sensor 28 and hydraulic system oil pressure, to reach the object of protection supervisory equipment.
abnormal operating state: during power failure, oil pump 9 stops operating, the power-off of electromagnetic relief valve 27, first reversal valve 7, second reversal valve 8 commutates, when hydraulic motor 1, polished rod 2 discharge torsion reversion, hydraulic motor 1 becomes hydraulic oil pump when the time comes, hydraulic oil gets back to fuel tank 3 by the second strainer 31, second one way valve 12, second reversal valve 8, hydraulic motor 1, first reversal valve 7, flow speed control valve 13, utilizes flow speed control valve 13 to realize the speed governing of hydraulic motor 1.The remaining flow of adjustment oil pump 9 flows into fuel tank 3 by electromagnetic relief valve 27, reaches hydraulic reverse turning-proof function.
2, oil pumper test operation: oil pumper test needs hydraulic motor 1, thrust bearing fuel tank assembly 16 lifting 70cm, and reserve enough spaces, testing equipment enters down-hole by test port and tests.Hydraulic oil pipe snap joint is connected with two elevating rams 19, open oil pump 9, hydraulic oil by the piston 25 of two elevating rams 19 and piston rod 26 by hydraulic lifting flange 18 jack-up, two lifting expansion rails 20 also raise together simultaneously, the piston rod 26 of two lifting expansion rails 20 and two hydraulic jacks 9 keeps level, and hydraulic motor 1, thrust bearing fuel tank assembly 16 are by steady lifting 70cm.Stopping is suppressed, and keeps height, carries out pumping well testing work.
driving unit on screw pump adopts the drive motors 11 of 11kw, and volume is little, is completed the normal operation of screw pump, and can realize automatic hydraulic lifting by hydraulic-driven, and the supporting well head guide shoe of cable car need not be adopted to complete the test mode of conventional pumpingh well.Discharge high pulling torque during screw pump low cruise, and there is the anti-anti-twisted function of oneself, can Automated condtrol be realized.
this oil well annulus logging wellhead assembly can be divided into two parts, a driving head be arranged on ring well logging mouth assembly 24, another part is for driving head provides the Hydraulic Station of hydraulic power supply, can hydraulic power be provided to several driving head by a Hydraulic Station simultaneously, accomplish that a Hydraulic Station drives several driving head work simultaneously, cost-saving, simplified apparatus.
Claims (9)
1.
a kind of oil well annulus logging wellhead assembly, is characterized in that comprising driving head, Hydraulic Station, polished rod and screw pump, wherein,
driving head comprises hydraulic motor, and the clutch end of hydraulic motor is fixedly connected with the upper end of polished rod, and the lower end of polished rod is fixedly connected with the power intake of screw pump;
hydraulic Station comprises fuel tank, the first branch road, the second branch road, the 3rd branch road, the first reversal valve and the second reversal valve, the lower end of the lower end of the first branch road, the lower end of the second branch road, the 3rd branch road is communicated with fuel tank respectively, first branch road is installed with oil pump and the first one way valve from the bottom to top successively, and the power intake of oil pump is fixedly connected with drive motors; Second branch road is installed with the second one way valve; The upper end of the first branch road is communicated with the first interface of the first reversal valve, the upper end of the 3rd branch road is by the second orifice of flow speed control valve and the first reversal valve, the first interface of hydraulic motor and the 3rd orifice of the first reversal valve, second interface of hydraulic motor is communicated with the first interface of the second reversal valve, the upper end of the second branch road and the second orifice of the second reversal valve, the middle part of the 3rd branch road is by the 3rd orifice of cooler and the second reversal valve.
2.
oil well annulus logging wellhead assembly according to claim 1, it is characterized in that driving head also comprises shock absorption coupler assembly, thrust bearing fuel tank assembly, adpting flange, hydraulic lifting flange, elevating ram, lifting expansion rail, packing seal assembly, polished rod blowout preventer, test valve and ring well logging mouth assembly, the clutch end of hydraulic motor is fixedly connected with the power intake of shock absorption coupler assembly, the clutch end of shock absorption coupler assembly is fixedly connected with polished rod, shock absorption coupler assembly is fixedly mounted on the upper end of adpting flange, the lower end of adpting flange is fixedly mounted on the upper end of hydraulic lifting flange, lifting expansion rail and elevating ram are fixedly mounted on ring well logging mouth assembly, the inside of elevating ram is provided with piston and piston rod, the lower end of hydraulic lifting flange is fixedly mounted on the upper end of piston rod and the upper end of lifting expansion rail, the lower end of polished rod is installed with packing seal assembly, polished rod blowout preventer and test valve.
3.
oil well annulus logging wellhead assembly according to claim 1 and 2, is characterized in that the first branch road is installed with electromagnetic relief valve; Or/and the power of drive motors is 11KW.
4.
oil well annulus logging wellhead assembly according to claim 1 and 2, is characterized in that the upper end of the first branch road is installed with pressure sensor and pressure meter.
5.
oil well annulus logging wellhead assembly according to claim 3, is characterized in that the upper end of the first branch road is installed with pressure sensor and pressure meter.
6.
oil well annulus logging wellhead assembly according to claim 1 and 2, is characterized in that the first branch road between the oil-in of oil pump and fuel tank is installed with the first strainer valve; Or/and, the second branch road between the second one way valve and fuel tank is installed with the second strainer valve.
7.
oil well annulus logging wellhead assembly according to claim 3, is characterized in that the first branch road between the oil-in of oil pump and fuel tank is installed with the first strainer valve; Or/and, the second branch road between the second one way valve and fuel tank is installed with the second strainer valve.
8.
oil well annulus logging wellhead assembly according to claim 4, is characterized in that the first branch road between the oil-in of oil pump and fuel tank is installed with the first strainer valve; Or/and, the second branch road between the second one way valve and fuel tank is installed with the second strainer valve.
9.
oil well annulus logging wellhead assembly according to claim 5, is characterized in that the first branch road between the oil-in of oil pump and fuel tank is installed with the first strainer valve; Or/and, the second branch road between the second one way valve and fuel tank is installed with the second strainer valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420600160.5U CN204186336U (en) | 2014-10-16 | 2014-10-16 | Oil well annulus logging wellhead assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420600160.5U CN204186336U (en) | 2014-10-16 | 2014-10-16 | Oil well annulus logging wellhead assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204186336U true CN204186336U (en) | 2015-03-04 |
Family
ID=52618346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420600160.5U Withdrawn - After Issue CN204186336U (en) | 2014-10-16 | 2014-10-16 | Oil well annulus logging wellhead assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204186336U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329043A (en) * | 2014-10-16 | 2015-02-04 | 克拉玛依市尚正石油科技有限公司 | Annulus logging well head equipment for oil well |
-
2014
- 2014-10-16 CN CN201420600160.5U patent/CN204186336U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329043A (en) * | 2014-10-16 | 2015-02-04 | 克拉玛依市尚正石油科技有限公司 | Annulus logging well head equipment for oil well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150304 Effective date of abandoning: 20170125 |