CN206571470U - A kind of hydraulic pressure formation testing pumping device - Google Patents
A kind of hydraulic pressure formation testing pumping device Download PDFInfo
- Publication number
- CN206571470U CN206571470U CN201720165422.3U CN201720165422U CN206571470U CN 206571470 U CN206571470 U CN 206571470U CN 201720165422 U CN201720165422 U CN 201720165422U CN 206571470 U CN206571470 U CN 206571470U
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- Prior art keywords
- hydraulic
- energy storage
- oil
- cylinder
- pump
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Abstract
The utility model is a kind of hydraulic pressure formation testing pumping device, installed in the Pressure Curve in Oil Testing Well well head of petroleum industry, the liquid in stratum can be expelled into ground.The present apparatus includes device fuel tank and operating cylinder, and the piston rod of working piston is connected by polished rod eye with oil well pump.The lower hydraulic oil port of energy storage oil cylinder is connected by hydraulic line with the hydraulic oil port of operating cylinder, the upper hydraulic oil port of energy storage oil cylinder is connected by hydraulic line with device fuel tank, connected on the hydraulic line two-bit triplet solenoid directional control valve and hydraulic pump, hydraulic pump is connected with hydraulic pump motor, and hydraulic pump motor and two-bit triplet solenoid directional control valve are connected by cable with switch board.It ensure that the work safety of operation safety of the present utility model and downhole pump.Manufacturing cost of the present utility model is low, install and convenient disassembly, and energy-saving effect is notable, with significant using effect and economic benefit.
Description
Technical field
The utility model is related to the formation testing equipment of petroleum industry, particularly a kind of hydraulic pressure formation testing pumping device, installed in examination
The well head of oil well, can be expelled to ground by the liquid in stratum.
Background technology
Prospect pit is in formation testing discharge opeing process, for non-from injector layer, the oil reservoir of blowing poor ability and post-fracturing old well,
In order to understand Produced Fluid Property, the production capacity of reservoir, the physical parameter of oil reservoir is obtained, it is necessary to take the method that artificial mechanism is lifted from well
A number of liquid is discharged in cylinder.
At present, the most frequently used artificial lifting way of China's onshore oil field has mechanically and fluid pressure type.
Mechanical lift method has three kinds：A kind of method is to drive the steel wire being wrapped on roller as power source with tractor hoist
Rope is moved back and forth, and the assembly pulley that steel wire rope is installed by well workover derrick upper end, one end is connected to roller, and the other end is connected to underground
Swab, formed between the rubber and oil pipe on swab and sealed, the liquid in such well is discharged to ground, this suction by sealing
The problem of discharge opeing technology is present：One is that operating efficiency is relatively low；Two be that automaticity is low, artificial troublesome poeration；Another side
Method is：On the basis of first method, using motor as power source, by reduction box, steel wire rope on roller is driven back and forth to transport
Dynamic, the steel wire rope other end connects oil well pump, to realize that liquid is discharged to ground, this method in well by polished rod and sucker rod
Structure is cumbersome, and steel wire rope is easily broken；The third method is：Steel wire rope is changed to belt on the basis of second, belt one end connects
Polished rod is connect, the other end connects balancing weight, and the advantage of this method is energy-conservation, but shortcoming has two：One is mounting and adjusting trouble, is taken
When it is laborious；Two be the presence of potential safety hazard, once rod parting, balancing weight, which is fallen, can cause production accident.
Hydraulic oil pumping unit leans on fluid-pressure transmission power, and hydraulic oil is pumped into oil cylinder by pump, promotes piston reciprocating to move
It is dynamic, so that driving in pit shaft oil well pump to move up and down realizes discharge opeing.There is suspension type in the mounting means of well head, its hydraulic cylinder is hung over
On workover rig hook；Separately there is pedestal, its hydraulic cylinder is fixed on well head.From power save mode, have：Gasbag-type, piston type,
The modes such as spring, flywheel-type.Wherein underslung hydraulic pumping unit is easy for installation, it is adaptable to make in the environment for having well workover derrick
With.If no derrick can not operation, pedestal hydraulic pumping unit can depart from workover rig, it is necessary to according to different well heads with difference
Support, its is supporting more, installs trouble.Gasbag-type hydraulic pumping unit is had the drawback that once leather bag is damaged, and gases at high pressure are mixed into
Liquid content easily forms accident.Flywheel-type hydraulic pumping unit is that energy-saving effect is poor at low speeds；Piston hydraulic oil pumper
Due to inertia force and the influence of friction, it is unsuitable for low pressure, high frequency time；Spring hydraulic pumping unit cost is higher.
The content of the invention
The purpose of this utility model is to provide a kind of hydraulic pressure formation testing pumping device, solves what traditional formation testing discharge opeing equipment was brought
Formation testing work well head mounting condition is difficult to, with safety in production hidden danger, steel wire rope easy fracture and during installation fee, energy-saving effect
Poor the problem of.Simplify structure, the reduction manufacturing cost of device, continuous draining can be realized, production efficiency is improved, it is ensured that production peace
Entirely.
Technical solution of the present utility model is：A kind of hydraulic pressure formation testing pumping device includes device fuel tank and working oil
Cylinder, the piston rod of working piston is connected by polished rod eye with oil well pump.The lower hydraulic oil port of energy storage oil cylinder by hydraulic line with
The hydraulic oil port connection of operating cylinder, the upper hydraulic oil port of energy storage oil cylinder is connected by hydraulic line with device fuel tank, the hydraulic pressure
Connected on pipeline two-bit triplet solenoid directional control valve and hydraulic pump, hydraulic pump is connected with hydraulic pump motor, hydraulic pump motor and two
Position three-way solenoid valve is connected by cable with switch board.
Compared with prior art, remarkable result of the present utility model is：The utility model is simple in construction, small volume, system
Cause it is low, can fast transportation be transferred to next Pressure Curve in Oil Testing Well and use.In present apparatus work, oil well pump is in up stroke, by hydraulic pressure
Pump motor drives hydraulic pump by upper hydraulic oil port to energy storage oil cylinder supply hydraulic fluid, and institute's feed flow force feed and balancing weight are promoted jointly
Energy storage piston provides hydraulic power to operating cylinder, makes the up pump oil of oil well pump that working piston is up, drive in well；Accumulation of energy oil
The energy deposition of down stroke gravity acting can be provided auxiliary power by the balancing weight in cylinder to up stroke.Oil well pump is in down stroke
When, under the Gravitative Loads of the pump carry lotus of oil well pump, working piston is moved down, and hydraulic oil is squeezed, from the lower hydraulic pressure of energy storage oil cylinder
Hydraulic fluid port enters, and cushioning effect is played to moving down for working piston, completes the upper and lower pumping function of oil well pump, realizes continuous row
Liquid.Balancing weight has been arranged in energy storage oil cylinder, has allowed balancing weight and hydraulic jack to combine by the utility model, both ensure that
Safety in production, realizes significant energy-saving effect again.To be further ensured that production safety, the utility model is also in operating cylinder
Upper limit position block and lower position block are mounted with, upper limit position block and lower position block can be joined by switch board with two two electric change valves
Conjunction is acted, and limits the stroke of working piston, it is run from over range, it is ensured that operation safety of the present utility model and well
The work safety of lower oil well pump.In summary, manufacturing cost of the present utility model is low, install and convenient disassembly, and energy-saving effect shows
Write, with significant using effect and economic benefit.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The present invention is described in detail below in conjunction with accompanying drawing, not limited the scope of the invention, all designs using the present invention are thought
The improvement that rood goes out belongs to the protection category of the present invention.
Referring to Fig. 1, a kind of hydraulic pressure formation testing pumping device includes device fuel tank 15 and operating cylinder 3, and operating cylinder 3 is arranged on
In support, the piston rod of working piston 2 is connected by polished rod eye 5 with oil well pump 6.The lower hydraulic oil port of energy storage oil cylinder 7 passes through liquid
Pressure pipeline is connected with the hydraulic oil port of operating cylinder 3, and the upper hydraulic oil port of energy storage oil cylinder 7 passes through hydraulic line and device fuel tank 15
Connect, connected on the hydraulic line two-bit triplet solenoid directional control valve 11 and hydraulic pump 13, hydraulic pump 13 and hydraulic pump motor 19
Connection, hydraulic pump motor 19 and two-bit triplet solenoid directional control valve 11 are connected by cable with switch board 18.Two-bit triplet electromagnetism
The correct flow direction of hydraulic oil when reversal valve 11 can guarantee that the up stroke of working piston 2 and down stroke.The top of operating cylinder 3 is additionally provided with
Exhaust outlet 1 is connected with the inner chamber of operating cylinder 3, the oil gas of leakage volatilization in operating cylinder 3 is discharged in time, is prevented increase negative
Pressure.
The energy storage oil cylinder 7 includes cylinder body, energy storage piston 10 and balancing weight 8, and balancing weight 8 passes through connecting rod and energy storage piston 10
Upper end connection, balancing weight 8 and energy storage piston 10 are arranged in the cylinder body of energy storage oil cylinder 7, positioned at upper hydraulic oil port and lower hydraulic pressure
Between hydraulic fluid port.
The balancing weight 8 is run in the inner cylinder body of energy storage oil cylinder 7, and upper hydraulic oil port and the inner cylinder body of energy storage oil cylinder 7 connect
Logical, the distance between upper surface to upper surface of energy storage piston 10 of balancing weight 8 is more than the height of the inner cylinder body of energy storage oil cylinder 7, this
Sample is more beneficial for the work of balancing weight 8 and energy storage piston 10.
The weight of the balancing weight 8 is hung weight with the pump of oil well pump 6 and is consistent.
Overflow valve 12 also in parallel in the hydraulic line at the two ends of hydraulic pump 13.When hydraulic line meets stifled, hydraulic pump 13
Pump pressure when exceeding setup pressure value, pass through the releasing pressure automatically of overflow valve 12, it is ensured that whole hydraulic line work under safe pressure
Make.
The also fixed upper limit position block 16 in upper and lower part and lower position block 4 of the inboard wall of cylinder block of operating cylinder 3, upper limit
Block 16 and lower position block 4 are connected by cable with the input terminal of limit switch 17, and the lead-out terminal of limit switch 17 passes through
Cable is connected with switch board 18.
Also connected on hydraulic line between the upper hydraulic oil port of the energy storage oil cylinder 7 and two-bit triplet solenoid directional control valve 11
Two two electric change valves 9, this two two electric change valves 9 are connected by cable with switch board 18.
It is new in order to further enhance this practicality to install two two electric change valves 9, upper limit position block 16 and lower position block 4
The security performance of type.Two two electric change valves 9 are reversal valves open in usual, when working piston 2 is pushed up in its stroke range
Upper limit position block 16 connect limit switch 17 or under touch lower position block 4 connect limit switch 17 when, switch board 18 is connected to signal, pass through
After central processing unit is calculated, control instruction is sent to two two electric change valves 9 and hydraulic pump motor 19 immediately, makes two two
Electric change valve 9 closes oil circuit, while hydraulic pump motor 19 is stopped, limits the up stroke or down stroke of working piston 2
Over range is run.
Hydraulic oil in device fuel tank 15 enters air-cooled radiator 14 by circulating pump, by the motor belt motor of air-cooled radiator 14
Dynamic fan is cooled down to the hydraulic oil circulated in device fuel tank 15, it is ensured that the oil temperature of the hydraulic oil in device fuel tank 15 is in normal
In working range.
Two two electric change valves 9, two-bit triplet solenoid directional control valve 11, overflow valve 12 and limit in the utility model
Bit switch 17 and switch board 18 are conventional hydraulic units and control unit.Heavy line in Fig. 1 represents hydraulic line, dotted line
Represent cable.
The course of work of the present utility model is as follows：State shown in Fig. 1 is the up stroke state of working piston 2, two-bit triplet
Solenoid directional control valve 11 is in open position, and 2/2-way solenoid directional control valve 9 is in open position, hydraulic oil is driven along hydraulic pressure by hydraulic pump 13
Pipeline enters energy storage oil cylinder 7, acts on the top of balancing weight 8, the bottom of energy storage oil cylinder 7 is pushed together with energy storage piston 10 and is sealed all the time
The hydraulic oil closed, makes hydraulic oil enter operating cylinder 3 after discharging, the piston 2 that pushes the work forward is up, drives oil well pump 6 to complete up
Journey.
During 2 down stroke of working piston, two-bit triplet solenoid directional control valve 11 is at off-position, 2/2-way solenoid directional control valve 9
In open position, oil well pump 6 is moved under Gravitative Loads, drives the working piston 2 in operating cylinder 3 descending, the hydraulic oil extruded
Energy storage oil cylinder 7 is flowed to, promotes energy storage piston 10 to move up the jack-up of balancing weight 8, down stroke is completed, while being the upper of working piston 2
Stroke stores energy.
During use, it can be hung and changed according to the pump of oil well pump 6, adjust the weight or adjustment hydraulic pump of balancing weight 8
13 liquid supply pressure.
The embodiment described above is only exemplary embodiments, but the present invention is not limited only to these embodiments, this area
Technical staff can make modification under without departing from the spirit of the present invention and enlightenment.Aspect disclosed herein there may be a lot
Change, combination and modification, and be within, therefore, protection domain is not limited only to explanation above.
Claims (7)
1. a kind of hydraulic pressure formation testing pumping device, including device fuel tank and operating cylinder, the piston rod of working piston pass through polished rod eye
It is connected with oil well pump, it is characterized in that, the lower hydraulic oil port of energy storage oil cylinder is connected by the hydraulic oil port of hydraulic line and operating cylinder
Logical, the upper hydraulic oil port of energy storage oil cylinder is connected by hydraulic line with device fuel tank, two-bit triplet of being connected on the hydraulic line
Solenoid directional control valve and hydraulic pump, hydraulic pump are connected with hydraulic pump motor, and hydraulic pump motor and two-bit triplet solenoid directional control valve lead to
Cable is crossed to be connected with switch board.
2. a kind of hydraulic pressure formation testing pumping device as claimed in claim 1, it is characterized in that, the energy storage oil cylinder includes cylinder body, stored
Energy piston and balancing weight, balancing weight are connected by the upper end of connecting rod and energy storage piston, and balancing weight and energy storage piston are arranged on accumulation of energy
In the cylinder body of oil cylinder, between upper hydraulic oil port and lower hydraulic oil port.
3. a kind of hydraulic pressure formation testing pumping device as claimed in claim 2, it is characterized in that, the balancing weight is in energy storage oil cylinder
Run in cylinder body, the upper hydraulic oil port of energy storage oil cylinder is connected with inner cylinder body, upper surface to the upper surface of energy storage piston of balancing weight
The distance between be more than energy storage oil cylinder inner cylinder body height.
4. a kind of hydraulic pressure formation testing pumping device as claimed in claim 2 or claim 3, it is characterized in that, the weight of the balancing weight is with taking out
The pump of oil pump is hung weight and is consistent.
5. a kind of hydraulic pressure formation testing pumping device as claimed in claim 2, it is characterized in that, the hydraulic line at the hydraulic pump two ends
In overflow valve also in parallel.
6. a kind of hydraulic pressure formation testing pumping device as claimed in claim 2, it is characterized in that, the operating cylinder inboard wall of cylinder block
The also fixed upper limit position block in upper and lower part and lower position block, upper limit position block and lower position block pass through cable and limit switch
Input terminal connection, the lead-out terminal of limit switch is connected by cable with switch board.
7. a kind of hydraulic pressure formation testing pumping device as claimed in claim 2, it is characterized in that, the upper hydraulic oil port of the energy storage oil cylinder
Also connected on hydraulic line between two-bit triplet solenoid directional control valve two two electric change valves, two two-way electromagnetism
Reversal valve is connected by cable with switch board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720165422.3U CN206571470U (en) | 2017-02-23 | 2017-02-23 | A kind of hydraulic pressure formation testing pumping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720165422.3U CN206571470U (en) | 2017-02-23 | 2017-02-23 | A kind of hydraulic pressure formation testing pumping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206571470U true CN206571470U (en) | 2017-10-20 |
Family
ID=60058368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720165422.3U Expired - Fee Related CN206571470U (en) | 2017-02-23 | 2017-02-23 | A kind of hydraulic pressure formation testing pumping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206571470U (en) |
-
2017
- 2017-02-23 CN CN201720165422.3U patent/CN206571470U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171020 Termination date: 20200223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |