CN206219188U - The skid-mounted unit of oil is drawn for oil well - Google Patents
The skid-mounted unit of oil is drawn for oil well Download PDFInfo
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- CN206219188U CN206219188U CN201621245430.0U CN201621245430U CN206219188U CN 206219188 U CN206219188 U CN 206219188U CN 201621245430 U CN201621245430 U CN 201621245430U CN 206219188 U CN206219188 U CN 206219188U
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Abstract
Oily skid-mounted unit is drawn for oil well the utility model discloses a kind of, belongs to oil movement and storage equipment technical field.Including：Sledge seat；It is fixed on the individual well storage tank on sledge seat；One end is connected with the inlet of individual well storage tank, the other end is used for the feed liquor pipeline that is connected with well mouth of oil well；One end is connected with the liquid outlet of individual well storage tank, the other end is used for the drain pipe line that is connected with the wagon spout of oil truck；The Loading Pump being arranged on drain pipe line and the mass flowmenter for measuring the flow by the produced liquid in oil well of Loading Pump；It is arranged on the snap joint of the end being connected for the wagon spout with oil truck of drain pipe line；And electrically connected with Loading Pump and mass flowmenter, for the produced liquid in oil well by Loading Pump that is obtained according to mass flow meter measurement flow control Loading Pump start and stop control device.The skid-mounted unit integrates crude oil closed loading and measures, and reduces oil gas and distributes, and compact conformation can be prefabricated in the factory, and shorten the in-site installation construction period.
Description
Technical field
The utility model is related to oil movement and storage equipment technical field, more particularly to a kind of achievable crude oil closed loading and meter
The skid-mounted unit that oil is drawn for oil well of amount integration.
Background technology
Crude oil is generally delivered to the defeated station of collection from oil mining is out rear by gathering line.But for some remote areas
The independence or cluster well of block, due to oil well dispersion and the defeated yard of distance set is farther out, it is uneconomical to set up gathering line, therefore mostly
By Crude Oil Transportation to gathering station by the way of individual well automobile draws oil.
It is to set up individual well in oil well site to draw oil drop that current individual well automobile draws the major way of oil, is equipped with individual well storage tank, dress
The equipment such as car pump, entrucking oil filling riser, one end of entrucking oil filling riser is connected with individual well storage tank, is connected with the other end of entrucking oil filling riser soft
Pipe；The general flow of operation is：Flexible pipe is extend into the wagon spout of oil truck, individual well conveys produced liquid in oil well by from pressure
To individual well storage tank, produced liquid in oil well dependence deadweight or pump in individual well storage tank are entered into oil truck.
During the utility model is realized, designer has found that prior art at least has problems with：Existing list
Well automobile is drawn in oily operation, is open between flexible pipe and the wagon spout of oil truck, during entrucking, has substantial amounts of oil gas
It is dispersed into environment by the wagon spout for opening wide, not only pollutes environment, also there is the danger of blast；And use existing equipment
Carry out individual well automobile and draw oil, it has not been convenient to which control and metering load the amount of the produced liquid in oil well of oil truck.Additionally, existing individual well vapour
Car draws the equipment of oil when assembling at the scene, it is necessary to be welded, threading, debugging etc. are operated, workload is big, the construction period is long.
Utility model content
In order to solve the above technical problems, the utility model embodiment provides one kind can realize crude oil closed loading and metering
The skid-mounted unit that oil is drawn for oil well of integration.
Specifically, including following technical scheme：
This practical embodiment provides a kind of skid-mounted unit for oil well drawing oil, including sledge seat, wherein, the oil well sledge dress
Device also includes：The individual well storage tank on the sledge seat is fixed on, inlet and liquid outlet are provided with the individual well storage tank；One end
It is connected with the inlet of the individual well storage tank, the other end is used for the feed liquor pipeline that is connected with well mouth of oil well；One end and the individual well
The liquid outlet connection of storage tank, the other end are used for the drain pipe line being connected with the wagon spout of oil truck；It is arranged on the drain pipe line
On Loading Pump and for measuring the mass flowmenter by the flow of the produced liquid in oil well of the Loading Pump；Go out described in being arranged on
The snap joint of the end being connected for the wagon spout with the oil truck of liquid pipe line；And, with the entrucking sheet and described
Mass flowmenter electrical connection, for the produced liquid in oil well by the Loading Pump that is obtained according to the mass flow meter measurement
Flow controls the control device of the start and stop of the Loading Pump.
Further, electric heater is provided with the individual well storage tank and is produced for measuring oil well in the individual well storage tank
Go out the liquid level gauge of the liquid level of liquid；The liquid level gauge and the control device are electrically connected, and the control device is additionally operable to basis
In the individual well storage tank that the liquid level gauge measurement is obtained the liquid level of produced liquid in oil well control the startup of the Loading Pump with
Stop；Spark arrester is additionally provided with the individual well storage tank.
Further, the position being located on the drain pipe line between the Loading Pump and the mass flowmenter is set
There is electric control valve, the electric control valve is electrically connected with the control device；The control device is additionally operable to according to the matter
The flow of the produced liquid in oil well by the Loading Pump that amount flow measurement is measured control the unlatching of the electric control valve with
Close.
Further, the position being located on the drain pipe line between the Loading Pump and the electric control valve is set
There is check-valves.
Further, the position between the liquid outlet of the individual well storage tank and the Loading Pump is located on the drain pipe line
Put and be disposed with the first flat gate valve and pump front filter along produced liquid in oil well flow direction；It is located on the drain pipe line
It is flat that position between the electric control valve and the mass flowmenter is disposed with second along produced liquid in oil well flow direction
Plate gate valve and flowmeter front filter.
Further, the position edge between the mass flowmenter and the snap joint is located on the drain pipe line
Produced liquid in oil well flow direction is disposed with the 3rd flat gate valve and sampling valve；Fourth panel is provided with the feed liquor pipeline
Gate valve.
Further, it is additionally provided with pressure gauge on the drain pipe line.
Further, the skid-mounted unit also includes：One end is located at the electric control valve and second flat gate valve
Between, the other end be located at bypass line between the 3rd flat gate valve and the sampling valve, set on the bypass line
There is the 5th flat gate valve.
Further, the skid-mounted unit also includes：It is fixed on the instrument distribution case on the sledge seat, the control device
It is arranged in the instrument distribution case.
Further, the skid-mounted unit also includes：It is fixed on the canopy body on sledge seat, it is the feed liquor pipeline, described
Drain pipe line and the instrument distribution case are located at portion in the canopy body.
The beneficial effect of technical scheme that the utility model embodiment is provided is：
The utility model embodiment integrates crude oil closed loading and measures for the drawing of remote oil well there is provided a kind of
The skid-mounted unit of oil.In the skid-mounted unit, in the drain pipe line that the liquid outlet of individual well storage tank is connected with the wagon spout of oil truck
On be disposed with Loading Pump and mass flowmenter, the end of drain pipe line is provided with quick with what the wagon spout of oil truck was connected
Joint.Produced liquid in oil well enters individual well storage tank from well mouth of oil well by from pressure by the inlet of individual well storage tank, is carrying out drawing oil
When, the produced liquid in oil well in individual well storage tank is exported by the liquid outlet of individual well storage tank, by entering oil after Loading Pump, mass flowmenter
Tank car.Because the end of drain pipe line is connected by the wagon spout of snap joint and oil truck, so that produced liquid in oil well is
Enter oil truck under conditions of closed, greatly reduce emission of the oil gas around oil truck, it is to avoid explosion danger, protect
Atmospheric environment.Meanwhile, control device and Loading Pump and mass flowmenter are electrically connected, and control device is obtained according to mass flow meter measurement
The flow of the produced liquid in oil well by Loading Pump for arriving controls the start and stop of Loading Pump, is easy to the oil well to entering oil truck
The amount of production fluid is controlled and measures.
Additionally, the skid-mounted unit compact conformation that oil is drawn for oil well that the utility model embodiment is provided, each composition portion
Dividing can be prefabricated in factory, and all welding jobs are completed when prefabricated, it is to avoid be subjected to during in-site installation, shortens
Construction period.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in the utility model embodiment, below will be to needed for embodiment description
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
The overlooking the structure diagram of the skid-mounted unit that oil is drawn for oil well that Fig. 1 is provided for the utility model embodiment；
The side structure schematic view of the skid-mounted unit that oil is drawn for oil well that Fig. 2 is provided for the utility model embodiment；
The principle schematic of the skid-mounted unit that oil is drawn for oil well that Fig. 3 is provided for the utility model embodiment.
Reference in figure is represented respectively：
1- individual well storage tanks；The flat gate valves of 2- first；3- pump front filters；4- Loading Pumps；5- check-valves；
6- electric control valves；The flat gate valves of 7- second；8- flowmeter front filters；9- mass flowmenters；
The flat gate valves of 10- the 3rd；11- snap joints；12- spark arresters；13- electric heaters；
14- fourth panel gate valves；15- flanges；16- pressure gauges；17- liquid level gauges；18- sampling valves；
19- sledges seat；20- instrument distribution casees；21- canopy bodies；The flat gate valves of 22- the 5th；
A- feed liquor pipelines；B- drain pipe lines；C- bypass lines.
The direction of arrow represents the flow direction of produced liquid in oil well in figure.
Specific embodiment
To make the technical solution of the utility model and advantage clearer, the utility model is implemented below in conjunction with accompanying drawing
Mode is described in further detail.Unless otherwise defined, all technical terms used by the utility model embodiment are respectively provided with
The identical implication being generally understood that with those skilled in the art.
The utility model embodiment provides a kind of skid-mounted unit for oil well drawing oil, referring to Fig. 1 and with reference to Fig. 2 and Tu
3, the skid-mounted unit includes：
Sledge seat 19；
The individual well storage tank 1 on sledge seat 19 is fixed on, inlet and liquid outlet are provided with individual well storage tank 1；
One end is connected with the inlet of individual well storage tank 1, the other end is used for the feed liquor pipeline A that is connected with well mouth of oil well；
One end is connected with the liquid outlet of individual well storage tank 1, the other end is used for the drain pipe line that is connected with the wagon spout of oil truck
B；
The Loading Pump 4 being arranged on drain pipe line B and the matter for measuring the flow by the produced liquid in oil well of Loading Pump 4
Amount flowmeter 9；
It is arranged on the snap joint 11 of the end being connected for the wagon spout with oil truck of drain pipe line B；
And, electrically connected with Loading Pump 4 and mass flowmenter 9, for according to mass flowmenter 9 measure obtain by dress
The control device of the start and stop of the flow control Loading Pump 4 of the produced liquid in oil well of car pump 4.
The utility model embodiment integrates crude oil closed loading and measures for the drawing of remote oil well there is provided a kind of
The skid-mounted unit of oil.Produced liquid in oil well is entered from well mouth of oil well (not shown) by from pressure by the inlet of individual well storage tank 1
Enter individual well storage tank 1, when carrying out drawing oil, the produced liquid in oil well in individual well storage tank 1 is exported by the liquid outlet of individual well storage tank 1, is passed through
Enter oil truck (not shown) after Loading Pump 4, mass flowmenter 9.The measurement of mass flowmenter 9 enters oil by Loading Pump 4
The amount of the produced liquid in oil well of tank car simultaneously transmits the result to control device, when enter oil truck produced liquid in oil well amount reach it is pre-
After the fixed loading of freight waggon, control device control Loading Pump 4 is out of service.The loading of freight waggon is set according to the volume scene of drawing oil truck
Fixed, the loading of freight waggon should be less than maximum entrucking volume.
Because the end of drain pipe line B is connected by the wagon spout of snap joint 11 and oil truck, so that oil well is produced
It is to enter oil truck under conditions of closed to go out liquid, greatly reduces emission of the oil gas around oil truck, it is to avoid blast danger
Danger, environment protection.Meanwhile, control device is electrically connected with Loading Pump 4 and mass flowmenter 9, i.e. Loading Pump 4 and mass flow
Meter 9 carries out electrical interlocks, and control device measures the stream of the produced liquid in oil well by Loading Pump 4 for obtaining according to mass flowmenter 9
The start and stop of amount control Loading Pump 4, are easy to the amount of the produced liquid in oil well to entering oil truck to be controlled and measure.
Also, it is existing using produced liquid in oil well deadweight carry out entrucking when, individual well storage tank need set aloft, operator
There is the danger of falling from high altitude in member；It is high that the skid-mounted unit provided using the utility model embodiment can be prevented effectively from operating personnel
Sky falls danger.It is existing when carrying out entrucking using pump, between larger safety is needed between Loading Pump and individual well storage tank and oil filling riser
Away from so that draw oil drop floor space big；And the skid-mounted unit compact conformation that the utility model embodiment is provided, can greatly reduce
Floor space.
Additionally, each part of the skid-mounted unit for oil well drawing oil of the utility model embodiment offer can be in work
It is prefabricated in factory, and all welding jobs are completed when prefabricated, Assembling is bolt connection, it is to avoid carried out during in-site installation
Welding operation, shortens construction period, and can meet the construction requirement in non-area of getting angry.
In the utility model embodiment, mass flowmenter 9 can the mass flow of medium that passes through of direct measurement, can be with root
The mass flow of the produced liquid in oil well obtained according to measurement, in conjunction with parameters such as oil densities, is calculated crude oil and contains using software
Water rate.In the utility model embodiment, the concrete model of mass flowmenter used does not have considered critical, can be according to actual needs
Selected.
Loading Pump 4 can use centrifugal pump.
Snap joint 11 be it is a kind of do not need instrument to can be achieved with the joint of pipeline connection or disconnection, concrete model this practicality
New embodiment is not particularly limited.It will be appreciated by persons skilled in the art that the wagon spout in oil truck is installed and goes out liquid
The snap joint that the snap joint 11 of pipeline B is engaged.
Further, in the utility model embodiment, electric heater 13 is provided with and for measuring list in individual well storage tank 1
The liquid level gauge 17 of the liquid level of produced liquid in oil well in well storage tank 1, and liquid level gauge 17 and control device electrical connection.
Wherein, electric heater 13 pairs is heated into the produced liquid in oil well in individual well storage tank 1, prevents production fluid from solidifying；
Liquid level gauge 17 and Loading Pump 4 carry out electrical interlocks, and liquid level gauge 17 will measure the liquid level obtained in individual well storage tank 1 and transmit to control
Control equipment, control device controls entrucking according to the liquid level that liquid level gauge 17 measures produced liquid in oil well in the individual well storage tank 1 for obtaining
The start and stop of pump 4.After the liquid level in individual well storage tank 1 reaches minimum safe liquid level, control device control Loading Pump 4
It is out of service, prevent Loading Pump 4 from evacuating, in order to avoid damage Loading Pump 4.
Spark arrester 12 is additionally provided with individual well storage tank 1, is caused danger with preventing external flame from scurrying into individual well storage tank 1, this
In utility model embodiment, spark arrester 12 can be vertically installed at the top of individual well storage tank 1.
Further, in the utility model embodiment, it is located between Loading Pump 4 and mass flowmenter 9 on drain pipe line B
Position be provided with electric control valve 6, electric control valve 6 is electrically connected with control device.Electric control valve 6 is also electric with Loading Pump 4
Gas is chain, and control device is electronic according to the flow control that mass flowmenter 9 measures the produced liquid in oil well by Loading Pump 4 for obtaining
The open and close of regulating valve 6, when the amount of the produced liquid in oil well for entering oil truck reaches the predetermined loading of freight waggon, control device control
After Loading Pump 4 is out of service, control device control electric control valve 6 is closed.
Further, in the utility model embodiment, it is located between Loading Pump 4 and electric control valve 6 on drain pipe line B
Position be provided with check-valves 5.
Flowed along produced liquid in oil well the position being located on drain pipe line B between the liquid outlet of individual well storage tank 1 and Loading Pump 4
Direction is disposed with the first flat gate valve 2 and pump front filter 3.
The position between electric control valve 6 and mass flowmenter 9 is located on drain pipe line B along produced liquid in oil well flowing side
To being disposed with the second flat gate valve 7 and flowmeter front filter 8.
By 8 pairs of oil well outputs for entering Loading Pump 4 and mass flowmenter 9 of pump front filter 3 and flowmeter front filter
Liquid is filtered, and prevents Loading Pump 4 and mass flowmenter 9 from damaging.
The position between mass flowmenter 9 and snap joint 11 is located on drain pipe line B along produced liquid in oil well flowing side
To being disposed with the 3rd flat gate valve 10 and sampling valve 18.By setting sampling valve 18, for field sampling chemical examination provides facility.
Fourth panel gate valve 14 is provided with feed liquor pipeline A, meanwhile, in the end that feed liquor pipeline A is connected with well mouth of oil well
Flange 15 is provided with, feed liquor pipeline A is connected with well mouth of oil well using the flange 15.
It will be appreciated by persons skilled in the art that above-mentioned produced liquid in oil well flow direction refers to from individual well storage tank 1
Liquid outlet towards in the direction of the wagon spout of oil truck, that is, the utility model embodiment, on drain pipe line B, from individual well
The liquid outlet of storage tank 1 rises and is disposed with the first flat gate valve 2, pump front filter 3, Loading Pump 4, check-valves 5, electric control valve
6th, the second flat gate valve 7, flowmeter front filter 8, mass flowmenter 9, the 3rd flat gate valve 10 and snap joint 11.
Meanwhile, it is additionally provided with pressure gauge 16 on drain pipe line B.Pressure gauge 16 can be provided with multiple, to detect liquid
The pressure of various location on pipeline B, to ensure the normal operation of the skid-mounted unit that the utility model embodiment is provided.For example,
Can be between the liquid outlet of individual well storage tank 1 and the first flat gate valve 2, between pump front filter 3 and Loading Pump 4, in Loading Pump 4
And check-valves 5 between, between the second flat gate valve 7 and flowmeter front filter 8, the flat gate valve of mass flowmenter 9 and the 3rd
Pressure gauge 16 is set between 10 etc. at position.
Further, the skid-mounted unit that the utility model embodiment is provided also includes：One end is located at electric control valve 6 and the
Between two flat gate valves 7, the other end be located at bypass line C between the 3rd flat gate valve 10 and sampling valve 18, on bypass line C
It is provided with the 5th flat gate valve 22.When mass flowmenter 9 is needed to be serviced or changed, can be by the second flat gate valve 7
Close, the 5th flat gate valve 22 is opened, the produced liquid in oil well in individual well storage tank 1 is delivered to oil truck by bypass line, just
In maintenance or replacing to mass flowmenter 9.
Further, the skid-mounted unit that the utility model embodiment is provided also includes the instrument distribution being fixed on sledge seat 19
Case 20.Above-mentioned control device is arranged in instrument distribution case 20.Meanwhile, necessary power supply unit, switch etc. are also all disposed within
In instrument distribution case 20.
Further, the skid-mounted unit that the utility model embodiment is provided also includes the canopy body 21 being fixed on sledge seat 19.
Miscellaneous part in skid-mounted unit in addition to individual well storage tank 1, including feed liquor pipeline A, drain pipe line B and instrument distribution case 20 etc. are located at
Inside canopy body 21.
To sum up, the utility model embodiment integrates crude oil closed loading and measures for remote oil there is provided a kind of
Well draws the skid-mounted unit of oil.Using Loading desing under closed, loading speed is fast, reduces oil gas distributing around oil truck,
Environmental protection, it is to avoid the danger of operating personnel's falling from high altitude and explosion danger.And crude oil measurement, quantifying and loading, crude oil can be realized
The operations such as measurement of water-content coefficient, sample examination.Additionally, the skid-mounted unit cloth that oil is drawn for oil well that the utility model embodiment is provided
Line gauge is whole, compact conformation, floor space are small, can be prefabricated in the factory, and all of welding operation is completed when being prefabricated in the factory, it is to avoid
It is subjected to during in-site installation, shortens construction period.
The above is for only for ease of it will be understood by those skilled in the art that the technical solution of the utility model, is not used to
Limitation the utility model.It is all it is of the present utility model spirit and principle within, any modification, equivalent substitution and improvements made etc.,
Should be included within protection domain of the present utility model.
Claims (10)
1. it is a kind of that oily skid-mounted unit, including sledge seat (19) are drawn for oil well, it is characterised in that the skid-mounted unit also includes：
The individual well storage tank (1) on sledge seat (19) is fixed on, inlet and liquid outlet are provided with the individual well storage tank (1)；
One end is connected with the inlet of the individual well storage tank (1), the other end is used for the feed liquor pipeline (A) that is connected with well mouth of oil well；
One end is connected with the liquid outlet of the individual well storage tank (1), the other end is used for the drain pipe that is connected with the wagon spout of oil truck
Line (B)；
The Loading Pump (4) being arranged on the drain pipe line (B) and the produced liquid in oil well for passing through the Loading Pump (4) for measurement
Flow mass flowmenter (9)；
It is arranged on the snap joint (11) of the end being connected for the wagon spout with the oil truck of the drain pipe line (B)；
And,
Electrically connected with the Loading Pump (4) and the mass flowmenter (9), for being measured according to the mass flowmenter (9)
To the flow of the produced liquid in oil well by the Loading Pump (4) control the control of the start and stop of the Loading Pump (4) to set
It is standby.
2. skid-mounted unit according to claim 1, it is characterised in that be provided with electrical heating in the individual well storage tank (1)
Device (13) and the liquid level gauge (17) for measuring the liquid level of the interior produced liquid in oil well of the individual well storage tank (1)；The liquid level gauge
(17) electrically connected with the control device；
Spark arrester (12) is additionally provided with the individual well storage tank (1).
3. skid-mounted unit according to claim 1, it is characterised in that the entrucking is located on the drain pipe line (B)
Position between pump (4) and the mass flowmenter (9) is provided with electric control valve (6), the electric control valve (6) with it is described
Control device is electrically connected.
4. skid-mounted unit according to claim 3, it is characterised in that the entrucking is located on the drain pipe line (B)
Position between pump (4) and the electric control valve (6) is provided with check-valves (5).
5. skid-mounted unit according to claim 3, it is characterised in that the individual well is located on the drain pipe line (B)
It is flat that position between the liquid outlet and the Loading Pump (4) of storage tank (1) is disposed with first along produced liquid in oil well flow direction
Plate gate valve (2) and pump front filter (3)；
The position between the electric control valve (6) and the mass flowmenter (9) is located on the drain pipe line (B) along oil
Well production fluid flow direction is disposed with the second flat gate valve (7) and flowmeter front filter (8).
6. skid-mounted unit according to claim 5, it is characterised in that the quality is located on the drain pipe line (B)
Position between flowmeter (9) and the snap joint (11) is disposed with the 3rd Flat Sluice along produced liquid in oil well flow direction
Valve (10) and sampling valve (18)；
Fourth panel gate valve (14) is provided with the feed liquor pipeline (A).
7. skid-mounted unit according to claim 6, it is characterised in that be additionally provided with pressure on the drain pipe line (B)
Table (16).
8. skid-mounted unit according to claim 6, it is characterised in that the skid-mounted unit also includes：One end is located at described
Between electric control valve (6) and second flat gate valve (7), the other end is located at the 3rd flat gate valve (10) and described takes
Bypass line (C) between sample valve (18), the 5th flat gate valve (22) is provided with the bypass line (C).
9. skid-mounted unit according to claim 1, it is characterised in that the skid-mounted unit also includes：It is fixed on the sledge
Instrument distribution case (20) on seat (19), the control device is arranged in the instrument distribution case (20).
10. skid-mounted unit according to claim 9, it is characterised in that the skid-mounted unit also includes：It is fixed on the sledge
Canopy body (21) on seat (19), the feed liquor pipeline (A), the drain pipe line (B) and the instrument distribution case (20) are positioned at institute
State canopy body (21) internal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621245430.0U CN206219188U (en) | 2016-11-18 | 2016-11-18 | The skid-mounted unit of oil is drawn for oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621245430.0U CN206219188U (en) | 2016-11-18 | 2016-11-18 | The skid-mounted unit of oil is drawn for oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206219188U true CN206219188U (en) | 2017-06-06 |
Family
ID=58789980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621245430.0U Active CN206219188U (en) | 2016-11-18 | 2016-11-18 | The skid-mounted unit of oil is drawn for oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206219188U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111661811A (en) * | 2020-07-06 | 2020-09-15 | 中国石油天然气集团公司 | Unattended closed oil unloading method and device |
-
2016
- 2016-11-18 CN CN201621245430.0U patent/CN206219188U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111661811A (en) * | 2020-07-06 | 2020-09-15 | 中国石油天然气集团公司 | Unattended closed oil unloading method and device |
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