CN108049844A - Oil rig - Google Patents
Oil rig Download PDFInfo
- Publication number
- CN108049844A CN108049844A CN201810023632.8A CN201810023632A CN108049844A CN 108049844 A CN108049844 A CN 108049844A CN 201810023632 A CN201810023632 A CN 201810023632A CN 108049844 A CN108049844 A CN 108049844A
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- China
- Prior art keywords
- swabs
- liquid metal
- oil
- liquid
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/128—Adaptation of pump systems with down-hole electric drives
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/06—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having motor-pump units situated at great depth
Abstract
This disclosure relates to a kind of oil rig, including swabs cylinder and swabs, swabs can move back and forth in swabs cylinder, so as to fulfill oil pumping and oil extraction.Swabs is the casing of one end open, one end of one liquid metal conveyance conduit is stretched into swabs, and pass through sealing element slidable sealing between the outer cylindrical surface of liquid metal conveyance conduit and the inner wall of swabs, the other end of liquid metal conveyance conduit stretches into liquid metal liquid reserve tank, so as to which swabs cylinder inner cavity, liquid metal conveyance conduit inner cavity and liquid metal liquid reserve tank form the liquid metal Xun Huan chamber of closing.One liquid metal electromagnetic pump is sleeved on outside liquid metal conveyance conduit, and is moved back and forth in energization driving swabs in swabs cylinder.
Description
Technical field
This disclosure relates to field of petroleum exploitation, more particularly, to a kind of oil rig for just having hydraulic-driven.
Background technology
Current pumping unit is mainly beam pumping unit and tower-type pumping unit.
Common pumping unit, that is, beam pumping unit is the widely applied traditional pumping unit in oil field, usually different by commonly exchanging
Step motor directly drags.Its crank band drives sucker rod with balance, and driving downhole pump fixes the upper of cycle
The oil of underground, is thus sent to ground by lower reciprocating motion.Tower-type pumping unit is taken out by motor drag wheel rope by pulley, clump weight
The oil of underground is sent to ground by the homestat that oil pipe is formed.
Traditional pumping unit is all that oil is given rise to ground by motor drag mechanical energy transmission system, and there are consuming steel
It is more, take up a large area, consume energy the shortcomings of higher, dynamic loading is larger, larger to tube rod system shock.It accordingly, it is desirable to can
Using a kind of device consuming steel are considerably less, floor space is small, the smaller oil rig of energy consumption., and due to liquid in equipment
Metal electromagnetic pump directly converts electrical energy into fluid dynamic energy, and equipment mass motion component is few, and small, long lifespan is lost in mechanical energy.It adopts
With by the hydraulic oil pumping device that liquid metal and liquid metal electromagnetic pump are core,
The content of the invention
One of to achieve these goals or all to eliminate technological deficiency of the prior art, present disclose provides one kind
Oil rig, including swabs cylinder and the swabs being sleeved in swabs cylinder, swabs outer cylindrical surface is with taking out
The oily piston inside wall of cylinder is sealed by sealing element, and can be moved back and forth in swabs cylinder, so as to live in swabs from oil pumping
Plug cylinder causes the inlet valve of swabs cylinder to be opened and draining valve closing when bouncing back so that oil enters swabs via inlet valve
The shoe cream room of cylinder, and when swabs is promoted into swabs cylinder the draining valve of swabs cylinder is caused to be opened and inlet valve
It closes so that oil is discharged to outside the shoe cream room of swabs cylinder, wherein, swabs is the end seal towards swabs cylinder
It closes to form piston end surface and the other end is the casing of opening, the pumping to form described sleeve pipe is stretched into one end of liquid metal conveyance conduit
In oily piston, and it can be slided by sealing element between the outer cylindrical surface of liquid metal conveyance conduit and the inner wall of swabs
Dynamic sealing, the other end of liquid metal conveyance conduit stretch into liquid metal liquid reserve tank, so as to swabs cylinder inner cavity, liquid metal
Conveyance conduit inner cavity and liquid metal liquid reserve tank form the liquid metal Xun Huan chamber of closing, liquid metal electromagnetic pump suit
It is moved outside liquid metal conveyance conduit, and in energization driving swabs in swabs cylinder.
According to the oil rig of the disclosure, further include：Journey controller enters or exits oil pumping in swabs and lives
When reaching precalculated position in plug cylinder, switch-over control signal is sent, so that swabs carries out counter motion.
According to the oil rig of the disclosure, wherein the journey controller is by being arranged on the oil extraction of the lower end of swabs cylinder
It travel switch, the oil inlet travel switch being arranged on liquid metal conveyance conduit outer wall and is arranged on swabs outer wall
Travel switch triggering block is formed, when swabs carries out oil extraction stroke, in oil extraction end of travel when on swabs outer wall
During the oil extraction travel switch of the lower end of travel switch triggering block collision swabs cylinder, switch-over control signal is triggered, switches liquid
The current direction of metal electromagnetic pump so that swabs is transformed to oil inlet stroke motion from oil extraction stroke motion；Work as swabs
When carrying out oil inlet stroke, in oil inlet stroke motion end when the travel switch triggering block on swabs outer wall collides liquid metal
During oil inlet travel switch on conveyance conduit outer wall, switch-over control signal is triggered, switches the current direction of liquid metal electromagnetic pump,
So that swabs is transformed to oil extraction stroke motion from oil inlet stroke motion.
According to the oil rig of the disclosure, wherein the journey controller is by being arranged on the oil extraction of the lower end of swabs cylinder
Stroke sensor, the oil inlet stroke sensor being arranged on liquid metal conveyance conduit outer wall and it is arranged on swabs outer wall
On travel switch triggering block form, when swabs carries out oil extraction stroke, in oil extraction end of travel when swabs cylinder
It is predetermined that the oil extraction stroke sensor of lower end detects that the distance between travel switch triggering block on swabs outer wall is less than
During threshold value, switch-over control signal is triggered, switches the current direction of liquid metal electromagnetic pump so that swabs is transported from oil extraction stroke
It is dynamic to be transformed to oil inlet stroke motion；When swabs carries out oil inlet stroke, in oil inlet stroke motion end when liquid metal is defeated
The oil inlet stroke sensor on pipeline outer wall is sent to detect the distance between travel switch triggering block on swabs outer wall
During less than a predetermined threshold, trigger switch-over control signal, switch the current direction of liquid metal electromagnetic pump so that swabs from
Oil inlet stroke motion is transformed to oil extraction stroke motion.
According to the oil rig of the disclosure, the journey controller is by being arranged on the oil extraction stroke of the lower end of swabs cylinder
It switchs, the oil inlet travel switch being arranged on liquid metal conveyance conduit outer wall and the stroke being arranged on swabs outer wall
Switch triggering block is formed, when swabs carries out oil extraction stroke, in oil extraction end of travel when the stroke on swabs outer wall
During the oil extraction travel switch of the lower end of switch triggering block collision swabs cylinder, switch-over control signal is triggered, cuts off liquid metal
The electric current supply of electromagnetic pump so that liquid metal is back to downwards liquid metal liquid reserve tank under self gravitation effect, and causes
Swabs also under the synergy of self gravitation and the downward pressure difference of swabs on both sides of the upper end, is passively transported from oil extraction stroke
It is dynamic to be transformed to oil inlet stroke motion；When swabs carries out oil inlet stroke, in oil inlet stroke motion end when outside swabs
When travel switch triggering block on wall collides the oil inlet travel switch on liquid metal conveyance conduit outer wall, triggering switching control letter
Number, reclose the electric current supply of liquid metal electromagnetic pump so that swabs is transformed to oil extraction stroke from oil inlet stroke motion
Movement.
According to the oil rig of the disclosure, wherein the journey controller is by being arranged on the oil extraction of the lower end of swabs cylinder
Stroke sensor, the oil inlet stroke sensor being arranged on liquid metal conveyance conduit outer wall and it is arranged on swabs outer wall
On travel switch triggering block form, when swabs carries out oil extraction stroke, in oil extraction end of travel when swabs cylinder
It is predetermined that the oil extraction stroke sensor of lower end detects that the distance between travel switch triggering block on swabs outer wall is less than
During threshold value, switch-over control signal is triggered, cuts off the electric current supply of liquid metal electromagnetic pump so that liquid metal is made in self gravitation
Be back to liquid metal liquid reserve tank downwards with lower, and cause swabs also self gravitation and swabs on both sides of the upper end to
Under the synergy of lower pressure difference, passively oil inlet stroke motion is transformed to from oil extraction stroke motion；When swabs carries out oil inlet row
Cheng Shi lives in oil inlet stroke motion end when the oil inlet stroke sensor on liquid metal conveyance conduit outer wall is detected with oil pumping
When the distance between travel switch triggering block on wall is less than a predetermined threshold beyond the Great Wall, switch-over control signal is triggered, is reclosed
The electric current supply of liquid metal electromagnetic pump so that swabs is transformed to oil extraction stroke motion from oil inlet stroke motion.
According to the oil rig of the disclosure, wherein the journey controller sends switch-over control signal based on fixed frequency,
So that swabs carries out counter motion.The switch-over control signal switches the magnetic field power supply of the liquid metal electromagnetic pump
The current direction of current direction or the electrode being connected with liquid metal, so that the direction of motion of swabs switches over.
According to the oil rig of the disclosure, wherein liquid metal liquid reserve tank includes liquid metal liquid storage tank and liquid metal stores up
Liquid pool lid, the slidable spiral-lock of liquid metal liquid storage tank lid is in liquid metal liquid storage tank opening, and liquid metal liquid storage tank
It is sealed between lid inner wall and liquid metal liquid storage tank cylindrical outer wall using sealing element, so as to due to liquid inside liquid metal liquid reserve tank
State metal be extracted or draw back and during pressure change so that liquid metal liquid storage tank and the liquid metal storage of liquid metal liquid reserve tank
Liquid pool lid carries out reciprocal relative movement each other, thus changes the volume of liquid metal liquid reserve tank, and the liquid metal
Conveyance conduit outer wall sealingly extends through in the through hole insertion liquid metal liquid reserve tank that liquid metal liquid storage tank covers and liquid gold
Belonging to liquid storage tank lid can reciprocatingly slide along the liquid metal conveyance conduit.
According to the oil rig of the disclosure, the wherein upper end of liquid metal liquid reserve tank has the opening being connected with air, liquid
The volume of state metal liquid reserve tank is more than the volume of liquid metal in device, and swabs is in the end of its oil extraction stroke
When, the liquid level of remaining liquid metal is higher than liquid metal conveyance conduit lower ending opening in liquid metal liquid reserve tank.
According to the disclosure, due to by liquid metal and liquid metal electromagnetic pump organically connected applications into oil rig,
Fluid dynamic energy is directly converted electrical energy by liquid metal electromagnetic pump in equipment, so as to significantly reduce equipment mass motion
The material consumption of component, thus reduction, and it is small to reduce mechanical energy loss, while also extends the service life of pumping unit
It is long.
Description of the drawings
Attached drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the disclosure
Example, and for explaining the principle of the disclosure together with specification.
Fig. 1 show the theory structure schematic diagram of the embodiment of the oil rig according to the disclosure.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, example is illustrated in the accompanying drawings.Following description is related to
During attached drawing, unless otherwise indicated, the same numbers in different attached drawings represent the same or similar element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the disclosure.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects be described in detail in claims, the disclosure.
It is only merely for the purpose of description specific embodiment in the term that the disclosure uses, and is not intended to be limiting and originally opens.
" one kind " of singulative used in disclosure and the accompanying claims book, " described " and "the" are also intended to including most shapes
Formula, unless context clearly shows that other meanings.It is also understood that term "and/or" used herein refer to and comprising
One or more associated list items purposes any or all may combine.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the disclosure
A little information should not necessarily be limited by these terms.These terms are only used for same type of information being distinguished from each other out.For example, it is not departing from
In the case of disclosure scope, first seal can also be referred to as second seal, and similarly, second seal can also be by
Referred to as first seal.Depending on linguistic context, word as used in this " if " can be construed to " ... when " or
" when ... " or " in response to determining ".
In order to which those skilled in the art is made to more fully understand the disclosure, with reference to the accompanying drawings and detailed description to this public affairs
It opens and is described in further detail.
As shown in Figure 1, vertically arranged oil rig 100 mainly includes swabs cylinder 110 and oil pumping driving device 200
Composition.Overall swabs cylinder 110 is in tubbiness, and mid diameter becomes larger, to form the drum type accommodating chamber 111 of bigger, so as to
One stroke extracts and accommodates more oil masses, while forms one or more oil inlets in the two bottom sides of drum type accommodating chamber 111
Mouth 112, and inlet valve 113 is installed at oil inlet.The internal diameter of the upper and lower ends of swabs cylinder 110 is essentially identical, also may be used
With difference.The upper end oil discharge outlet 114 of swabs cylinder 110 is provided with draining valve 115.Although it is shown here as swabs cylinder
110 to include the widened drum type accommodating chamber 111 of intermediate internal diameter, but according to actual needs, and swabs cylinder 110 can also it
Straight-through piston cylinder, i.e. internal diameter are all.In such a case, it is possible to oil inlet 112 is arranged on to the side of swabs cylinder 110
The top position of downward storke end (will be described below) in the swabs 205 of the slightly above oil pumping driving device 200 of wall
Locate (being not shown herein).Certainly, according to actual needs, other set-up modes can also be used.Inlet valve 113 and draining valve 115
It can be a kind of a kind of simple pressure check valve either electromagnetism check valve.
The swabs 205 of oil pumping driving device 200 is sleeved in swabs cylinder 110.Oil pumping driving device 200 drives
Swabs 205 moves reciprocatingly in the lower end cylinder sleeve of swabs cylinder 110, realizes oil pumping and the oil extraction course of work.Oil pumping
The inner wall of the upper end of the lower part moved back and forth for swabs 205 of piston cylinder 110 is formed with sealed groove 116, for holding
Receive ring type seal 117.Sealed groove 116 is located slightly lower than oil pumping when swabs 205 is in the end of its stroke of pumping and lives
At the position of the location of the end face of plug 205, so that ring type seal 117 is in the reciprocatory movement of swabs 205
Always against swabs outer cylindrical surface, prevent from being drawn into oily from the lower end of swabs cylinder 110 in swabs cylinder 110
It is leaked into elsewhere in gap between 205 outer wall of cylinder sleeve and swabs.On the contrary, it can also exist selectively or directly
Sealed groove is formed on 205 outer wall of swabs, and sealing ring type seal will be contained in sealed groove, so that annular
The inner wall of sealing ring against the lower end of swabs cylinder 110 forms the sealing to oil.
As shown in Figure 1, one end of swabs 205 towards the swabs cylinder 110 of oil pumping driving device 200 is closed to be formed
Piston end surface, the other end is opening, therefore swabs 205 is the casing being unidirectionally open of a hat shape.Oil pumping driving dress
The one end for putting 200 liquid metal conveyance conduit 210 is stretched into from the openend of swabs 205.Liquid metal conveyance conduit 210
The other end stretch into liquid metal liquid reserve tank 220.The inner cavity of swabs 205,210 inner cavity of liquid metal conveyance conduit as a result,
And liquid metal liquid reserve tank 220 forms the liquid metal Xun Huan chamber of closing.
Sealed groove 215 is formed on the inner wall of the lower end of swabs 205, for accommodating ring type seal 225.Annular
Sealing ring 225 is in the reciprocatory movement of swabs 205 always against the outer cylindrical table of liquid metal conveyance conduit 210
Face prevents the indoor liquid metal of liquid metal torus from the outer of 205 inner wall of swabs and liquid metal conveyance conduit 210
Outside is leaked into gap between wall.It selectively or on the contrary, can also be directly in 210 outer wall of liquid metal conveyance conduit
Upper formation sealed groove, and ring type seal is contained in sealed groove, so that ring type seal is against swabs
The inner wall of 205 lower end forms the sealing to liquid metal.
Or it as shown in Figure 1, at close liquid metal liquid reserve tank 220 on liquid metal conveyance conduit 210, is set with
Liquid metal electromagnetic pump 230.Liquid metal pump 230 is flowed in energization driving liquid metal in liquid metal torus room
It is dynamic, so as to swabs 205 be promoted to move upwards or swabs 205 moves downward under the negative pressure of inner cavity and gravity.
In order to control the stroke of swabs 205, journey controller is also provided with according to the oil rig 100 of the disclosure
240.Journey controller 240 enters in swabs cylinder 110 in progress oil extraction stroke in swabs 205 and reaches precalculated position
When, switch-over control signal is sent, the sense of current of liquid metal electromagnetic pump 230 is supplied to switching so that swabs 205
Carry out oil pumping stroke motion.When swabs 205 carries out oil pumping stroke and exits swabs cylinder 110 and reach precalculated position, hair
Go out switch-over control signal, the sense of current of liquid metal electromagnetic pump 230 is supplied to switching so that swabs 205 carries out
Oil extraction stroke motion.
As shown in Figure 1, journey controller 240 includes the oil extraction travel switch for being arranged on the lower end of swabs cylinder 110
241st, the oil inlet travel switch 242 that is arranged on 210 outer wall of liquid metal conveyance conduit and it is arranged on 205 outer wall of swabs
On travel switch triggering block 243 form.When swabs 205 carries out oil extraction stroke, in oil extraction end of travel when oil pumping is lived
When filling in the oil extraction travel switch 241 for the lower end that the travel switch triggering block 243 on 205 outer walls collides swabs cylinder 110, pass through
Press trigger switch and switch-over control signal, switch the current direction of liquid metal electromagnetic pump 230 so that swabs 205 from
Oil extraction stroke motion is transformed to oil inlet stroke motion；When swabs 205 carries out oil inlet stroke, in oil inlet stroke motion end
When the travel switch triggering block 243 on 205 outer wall of swabs collides the oil inlet stroke on 210 outer wall of liquid metal conveyance conduit
When switching 242, by pressing trigger switch and switch-over control signal, the current direction of switching liquid metal electromagnetic pump 230 so that
Swabs 205 is transformed to oil extraction stroke motion from oil inlet stroke motion.
Change swabs by switching the current direction of liquid metal electromagnetic pump 230 although merely depict herein
205 stroke directions, but can also liquid metal directly be changed to the current direction of the energization of liquid metal by changing
Flow direction, so as to change the stroke directions of swabs 205.Therefore, it may not be necessary to which journey controller 240 is set and straight
Being connected in driving device sets the fixed frequency moved back and forth and actuating speed to change the stroke directions of swabs 205.
Although shown is a kind of journey controller 240 of mechanical collision trigger switch formula in Fig. 1.But stroke control
Device 240 processed can also be arranged to a kind of distance detection photoelectricity journey controller.For example, journey controller 240 is by being arranged on oil pumping
The oil extraction stroke sensor 241 of the lower end of piston cylinder 110, the oil inlet stroke sensing being arranged on liquid metal conveyance conduit outer wall
Device 242 and the travel switch triggering block 243 being arranged on swabs outer wall are formed.When swabs 205 carries out oil extraction row
Cheng Shi, in oil extraction end of travel when the oil extraction stroke sensor 241 of the lower end of swabs cylinder 110 detects and swabs
When the distance between travel switch triggering block 243 on 205 outer walls is less than predetermined threshold S (such as 5 millimeters or less than 5 millimeters),
Oil extraction stroke sensor 241 sends switch-over control signal, switching liquid gold to the power supply (not shown) of liquid metal electromagnetic pump 230
Belong to the connection mode between electromagnetic pump 230 and power supply, to change the current direction of liquid metal flowing electromagnetic pump 230 so that take out
Oily piston 205 is transformed to oil inlet stroke motion from oil extraction stroke motion.When swabs 205 carries out oil inlet stroke, in oil inlet
Oil inlet stroke sensor of the end of travel on 210 outer wall of liquid metal conveyance conduit detect on 205 outer wall of swabs
The distance between travel switch triggering block 243 when being less than predetermined threshold S (such as 5 millimeters or less than 5 millimeters), oil inlet stroke biography
Sensor 241 sends switch-over control signal to the power supply (not shown) of liquid metal electromagnetic pump 230, switches liquid metal electromagnetic pump
Connection mode between 230 and power supply, to change the current direction of liquid metal flowing electromagnetic pump 230 so that swabs 205
Oil extraction stroke motion is transformed to from oil inlet stroke motion.
It is shown in Figure 1, the liquid metal of lower part is included according to the liquid metal liquid reserve tank 220 of the oil rig of the disclosure
Liquid storage tank 221 and liquid metal liquid storage tank lid 222.222 slidable spiral-lock of liquid metal liquid storage tank lid is in liquid metal liquid storage
In the opening of pond 221.Using annular between 221 cylindrical outer wall of inner wall and liquid metal liquid storage tank of liquid metal liquid storage tank lid 222
Sealing element 223 seals, so as to be extracted or draw back due to liquid metal liquid reserve tank interior liquid metal and during pressure change so that
The liquid metal liquid storage tank 221 and liquid metal liquid storage tank lid 222 of liquid metal liquid reserve tank 220 carry out reciprocal opposite each other
Thus movement changes the volume of liquid metal liquid reserve tank 220.Also, liquid metal conveyance conduit 210 passes through liquid metal liquid storage
The through hole 211 that pond covers is inserted into liquid metal liquid reserve tank 220 and liquid metal liquid storage tank lid 222 can be along liquid gold
Belong to conveyance conduit 210 to reciprocatingly slide.The inner wall of liquid metal liquid storage tank lid 222 and the outer wall of liquid metal conveyance conduit 210 it
Between by ring type seal 212, so as to prevent liquid metal from slot leakage between the two to outside.Although the figure of the disclosure
Show the liquid metal liquid reserve tank 220 that the closing being made of two critical pieces is employed in embodiment, but liquid metal liquid storage
Case 220 can also be the liquid reserve tank of the opening of a single critical piece, but be easily extracted out in order to ensure liquid metal and
It draws back, the volume of liquid metal liquid reserve tank 220 can be caused more than the volume of wholly liquid state metal and the opening and air
It communicates.Alternatively, its position can be set near liquid reserve tank higher than the additional liquid storage tank of liquid metal liquid reserve tank 220
(not shown) is connected with the opening of liquid metal liquid reserve tank 220, and causes liquid metal liquid reserve tank 220 and additional liquid storage
The volume in pond is more than the volume of wholly liquid state metal, and additional liquid storage tank is also provided with an opening and is communicated with air.
It is powered for convenience of to liquid metal, an electrode can be set to the one side of liquid metal electromagnetic pump 230, and will be another
A electrode is arranged on the opposite side of liquid metal electromagnetic pump 230, and the line of the two is vertical with electromagnetic field, so as to liquid gold
Category is powered.For simplified form purpose, it is not specifically illustrating at this in figure.Therefore, in order to change swabs 205
Stroke directions, can be defeated by journey controller 230 according to certain frequency according to the length and the speed of service of each stroke
Go out switch-over control signal, so as to switch for the magnetic field of liquid metal electromagnetic pump 230 supply electrode power supply polarity or with
The polarity for the electrode that liquid metal is connected, so as to change the thus direction of motion that the flow direction of liquid metal changes swabs 205.
Alternatively, power down process directly can be carried out to above-mentioned two teams' electrode according to fixed frequency so that swabs 205 is in dead weight or pressure difference
Effect is lower into oil pumping stroke, this will save part electric energy.
Embodiment of the present disclosure is had been described in detail above in association with attached drawing, entire oil rig at work, divides
For upstroke and down stroke, by liquid metal driving device, oil rig will be in stratum with the reciprocating motion of certain frequency
Crude oil lifts, and realizes oil exploitation.Liquid metal electromagnetic pump 230 is powered during upstroke, and interior liquid metal is driven upwards
Movement, liquid metal liquid storage case lid 222 moves downward, and swabs moves upwards, and operative liquid metal is from liquid metal liquid storage
Case 220 flows into liquid metal delivery tubes road 210.Meanwhile pressure increases in swabs cylinder 110, draining valve 115 is opened, oil inlet
Valve 113 is closed, and crude oil is discharged by outlet 114.During down stroke, liquid metal electromagnetic pump 230 powers off, from swabs cylinder
The pressure of crude oil in 110, the pressure of liquid metal, the gravity of swabs 205 so that liquid metal is downward in swabs 205
Movement, swabs 205 moves downward, and liquid metal liquid storage case lid 222 moves upwards, and liquid metal is from liquid metal delivery pipe
Road 210 returns liquid metal liquid reserve tank 220.Meanwhile pressure reduces in swabs cylinder 110, delivery valve 115 is closed, inlet valve 113
It opens, crude oil enters oil pipe from inlet valve 113.In order to promote inlet valve 113 open and/or prevent as early as possible swabs 205 by
Slow down downstream rate in generation negative pressure in swabs cylinder 110, the energization direction of liquid metal electromagnetism sheet can be cut
It changes, promotes liquid metal reverse reflux to liquid metal liquid reserve tank 220.
In addition, the power module of the liquid metal electromagnetic pump 230 by power grid power supply be converted to direct current used in electromagnetic pump,
Low-voltage, high current electricity consumption.And the liquid metal electromagnetic pump can be one or more serial or parallel connections.
Above to the description of the specific embodiment of the disclosure, just to help to understand the inventive concept of the disclosure, this
It is not meant to that all applications of the disclosure can only be confined to these specific specific embodiments.Those skilled in the art should manage
Solution, above-described specific embodiment are some examples in a variety of preferred embodiments.Any embodiment disclosure right
It is required that specific embodiment, should all be within the scope of disclosure claim be claimed.Those skilled in the art's energy
Enough modify to technical solution recorded in each specific embodiment above or which part technical characteristic is carried out etc.
With replacement.All any modification, equivalent substitution or improvement made within the spirit and principle of the disclosure etc., should be included in
Within disclosure scope of the claims.
Claims (10)
1. a kind of oil rig, including swabs cylinder and the swabs being sleeved in swabs cylinder, swabs column jacket
Shape surface is sealed with the swabs inside wall of cylinder by sealing element, and can be moved back and forth in swabs cylinder, so as to live in oil pumping
Plug causes that the inlet valve of swabs cylinder is opened when bounce back from swabs cylinder and draining valve is closed so that it is oily via inlet valve into
Enter the shoe cream room of swabs cylinder, and when swabs is promoted into swabs cylinder the draining valve of swabs cylinder is caused to be opened
It opening and inlet valve closing so that oil is discharged to outside the shoe cream room of swabs cylinder, wherein, swabs is towards swabs
One end enclosed shape of cylinder into the casing that piston end surface and the other end are opening, stretch into form institute by one end of liquid metal conveyance conduit
It states in the swabs of casing, and by close between the outer cylindrical surface of liquid metal conveyance conduit and the inner wall of swabs
Element slidable sealing is sealed, the other end of liquid metal conveyance conduit stretches into liquid metal liquid reserve tank, so as in swabs cylinder
Chamber, liquid metal conveyance conduit inner cavity and liquid metal liquid reserve tank form the liquid metal Xun Huan chamber of closing, liquid gold
Belong to electromagnetic pump to be sleeved on outside liquid metal conveyance conduit, and transported in energization driving swabs in swabs cylinder
It is dynamic.
2. oil rig according to claim 1, further includes：Journey controller enters or exits in swabs
When reaching precalculated position in swabs cylinder, switch-over control signal is sent, so that swabs carries out counter motion.
3. oil rig according to claim 2, wherein the journey controller is by being arranged on the lower end of swabs cylinder
Oil extraction travel switch, the oil inlet travel switch that is arranged on liquid metal conveyance conduit outer wall and be arranged on outside swabs
Travel switch triggering block on wall is formed, when swabs carries out oil extraction stroke, in oil extraction end of travel when outside swabs
During the oil extraction travel switch of the lower end of the travel switch triggering block collision swabs cylinder on wall, switch-over control signal is triggered, is cut
Change the current direction of liquid metal electromagnetic pump so that swabs is transformed to oil inlet stroke motion from oil extraction stroke motion；Work as pumping
When oily piston carries out oil inlet stroke, in oil inlet stroke motion end when the travel switch triggering block on swabs outer wall collides liquid
During oil inlet travel switch on state metal delivery tubes pipeline outer wall, switch-over control signal is triggered, switches the electricity of liquid metal electromagnetic pump
Flow direction so that swabs is transformed to oil extraction stroke motion from oil inlet stroke motion.
4. oil rig according to claim 2, wherein the journey controller is by being arranged on the lower end of swabs cylinder
Oil extraction stroke sensor, the oil inlet stroke sensor that is arranged on liquid metal conveyance conduit outer wall and be arranged on oil pumping and live
The travel switch triggering block on wall is formed beyond the Great Wall, when swabs carries out oil extraction stroke, in oil extraction end of travel when oil pumping is lived
The oil extraction stroke sensor of the lower end of plug cylinder detects that the distance between the travel switch triggering block on swabs outer wall is small
When predetermined threshold, switch-over control signal is triggered, switches the current direction of liquid metal electromagnetic pump so that swabs is from oil extraction
Stroke motion is transformed to oil inlet stroke motion；When swabs carries out oil inlet stroke, work as liquid in oil inlet stroke motion end
Oil inlet stroke sensor on metal delivery tubes pipeline outer wall is detected between the travel switch triggering block on swabs outer wall
Distance when being less than a predetermined threshold, trigger switch-over control signal, switch the current direction of liquid metal electromagnetic pump so that oil pumping
Piston is transformed to oil extraction stroke motion from oil inlet stroke motion.
5. oil rig according to claim 2, the journey controller is by being arranged on the row of the lower end of swabs cylinder
It oily travel switch, the oil inlet travel switch being arranged on liquid metal conveyance conduit outer wall and is arranged on swabs outer wall
Travel switch triggering block form, when swabs carries out oil extraction stroke, in oil extraction end of travel on the swabs outer wall
Travel switch triggering block collision swabs cylinder lower end oil extraction travel switch when, trigger switch-over control signal, cut off liquid
The electric current supply of state metal electromagnetic pump so that liquid metal is back to downwards liquid metal liquid reserve tank under self gravitation effect,
And cause swabs also under the synergy of self gravitation and the downward pressure difference of swabs on both sides of the upper end, passively from oil extraction
Stroke motion is transformed to oil inlet stroke motion；When swabs carries out oil inlet stroke, in oil inlet stroke motion end when oil pumping
When travel switch triggering block on piston outer wall collides the oil inlet travel switch on liquid metal conveyance conduit outer wall, triggering switching
Control signal recloses the electric current supply of liquid metal electromagnetic pump so that swabs is transformed to arrange from oil inlet stroke motion
Oily stroke motion.
6. oil rig according to claim 2, wherein the journey controller is by being arranged on the lower end of swabs cylinder
Oil extraction stroke sensor, the oil inlet stroke sensor that is arranged on liquid metal conveyance conduit outer wall and be arranged on oil pumping and live
The travel switch triggering block on wall is formed beyond the Great Wall, when swabs carries out oil extraction stroke, in oil extraction end of travel when oil pumping is lived
The oil extraction stroke sensor of the lower end of plug cylinder detects that the distance between the travel switch triggering block on swabs outer wall is small
When predetermined threshold, switch-over control signal is triggered, cuts off the electric current supply of liquid metal electromagnetic pump so that liquid metal is at itself
Liquid metal liquid reserve tank is back under gravity downwards, and causes swabs also self gravitation and swabs upper surface
Under the synergy of the downward pressure difference in both sides, passively oil inlet stroke motion is transformed to from oil extraction stroke motion；When swabs carries out
During oil inlet stroke, in oil inlet stroke motion end the oil inlet stroke sensor on the liquid metal conveyance conduit outer wall detect with
When the distance between travel switch triggering block on swabs outer wall is less than a predetermined threshold, switch-over control signal, weight are triggered
The new electric current supply for connecting liquid metal electromagnetic pump so that swabs is transformed to oil extraction stroke motion from oil inlet stroke motion.
7. oil rig according to claim 2, wherein the journey controller sends switching control based on fixed frequency
Signal, so that swabs carries out counter motion.
8. oil rig according to claim 7, wherein the switch-over control signal switches the liquid metal electromagnetic pump
The current direction of magnetic field power supply or the current direction for the electrode being connected with liquid metal so that the movement side of swabs
To switching over.
9. according to the oil rig described in one of claim 1-8, wherein liquid metal liquid reserve tank includes liquid metal liquid storage tank
With liquid metal liquid storage tank lid, the slidable spiral-lock of liquid metal liquid storage tank lid is in liquid metal liquid storage tank opening, and liquid
It is sealed between state metal liquid storage tank lid inner wall and liquid metal liquid storage tank cylindrical outer wall using sealing element, so as to due to liquid metal
Liquid reserve tank interior liquid metal is extracted or draws back and during pressure change so that the liquid metal liquid storage tank of liquid metal liquid reserve tank
Reciprocal relative movement is carried out each other with liquid metal liquid storage tank lid, thus changes the volume of liquid metal liquid reserve tank, and
The liquid metal conveyance conduit outer wall sealingly extends through the through hole insertion liquid metal liquid reserve tank that liquid metal liquid storage tank covers
In and liquid metal liquid storage tank lid can reciprocatingly slide along the liquid metal conveyance conduit.
10. according to the oil rig described in one of claim 1-8, the wherein upper end of liquid metal liquid reserve tank has and big gas phase
Opening even, the volume of liquid metal liquid reserve tank is more than the volume of liquid metal in device, and swabs is in its oil extraction
During the end of stroke, the liquid level of remaining liquid metal is higher than liquid metal conveyance conduit lower ending opening in liquid metal liquid reserve tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810023632.8A CN108049844A (en) | 2018-01-10 | 2018-01-10 | Oil rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810023632.8A CN108049844A (en) | 2018-01-10 | 2018-01-10 | Oil rig |
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| Publication Number | Publication Date |
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| CN108049844A true CN108049844A (en) | 2018-05-18 |
Family
ID=62126983
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810023632.8A Pending CN108049844A (en) | 2018-01-10 | 2018-01-10 | Oil rig |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114810726A (en) * | 2022-04-26 | 2022-07-29 | 杭州新亚低温科技有限公司 | Driving system of low-temperature liquid pump with displacement monitoring function |
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