CN101815871A - Artificial lift mechanisms - Google Patents
Artificial lift mechanisms Download PDFInfo
- Publication number
- CN101815871A CN101815871A CN200780100793A CN200780100793A CN101815871A CN 101815871 A CN101815871 A CN 101815871A CN 200780100793 A CN200780100793 A CN 200780100793A CN 200780100793 A CN200780100793 A CN 200780100793A CN 101815871 A CN101815871 A CN 101815871A
- Authority
- CN
- China
- Prior art keywords
- electric machine
- gas
- linear electric
- cabin
- gas spring
- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 56
- 238000005086 pumping Methods 0.000 claims abstract description 32
- 239000007789 gas Substances 0.000 claims description 65
- 239000011261 inert gas Substances 0.000 claims description 13
- 238000005553 drilling Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 7
- 230000004044 response Effects 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 2
- 230000001052 transient effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 1
- 239000003129 oil well Substances 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 10
- 238000005259 measurement Methods 0.000 description 9
- 239000003921 oil Substances 0.000 description 9
- 230000008859 change Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000006698 induction Effects 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 241000283074 Equus asinus Species 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000008263 liquid aerosol Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
-
- 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
- E21B43/13—Lifting well fluids specially adapted to dewatering of wells of gas producing reservoirs, e.g. methane producing coal beds
-
- 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
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
- F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
- F04B17/042—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids the solenoid motor being separated from the fluid flow
-
- 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
- F04B47/02—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level
-
- 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
- F04B47/02—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level
- F04B47/04—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level the driving means incorporating fluid means
Abstract
The present invention relates to be arranged in the linear electric machine and the gas spring of the reciprocating pump that is suitable for oil well.The application of the invention can construct simple, noiseless, compact and adaptable mechanism, thereby drives this class pump in the roomy scope.This mechanism will respond to various pumping situations and automatically it be reacted.
Description
Technical field
What the present invention relates to a kind of form is intended to drive the mechanism that reciprocating pump comes from dark drilling well or mine to promote liquid.
Background technique
In " jack-pump " mechanism, the piston that is positioned at drilling well or mine (may thousands of rice dark) bottom and non-reflux valve unit totally are connected with driving mechanism on the face of land by long steel pole, wherein long steel pole assembles and is screwed onto together by sections, is called roofbolt (rod string).The sections on roofbolt top---sections that appears in one's mind from drilling well by wiper seal---has higher any surface finish necessarily, is called polished rod.This described reciprocator of the present invention of literary composition of this polished rod and formation directly is connected.
This mechanism that structure has the oscillation level beam form of capitate end is known for a long time, wherein is wound with chain or cable in the capitate end, and the pumping tubing string is suspended from described cable.Have other more complicated mechanism, wherein, for example, polished rod is suspended from pulley or line belt, and rotation and the counterrotating by capstan winch (winch) mechanism of its middle pulley or line belt is enhanced or lowers.Yet back and forth beam or " donkey that nods (nodding donkey) " are the most popular devices that is used for mobile roofbolt always.Since 18th century, used reciprocal beam to come from mine, to draw water always.
Back and forth the power end of beam element is all the time or by linear actuator drives, be similar to early stage steam engine design (Atmospheric or Newcomen motor), perhaps driven by crank mechanism, linear actuators or crank mechanism drive and are driven by rotary engine again, for example motor, petrol engine, gas engine or diesel engine.These engine output torques are low, must provide heavy gearbox to reduce the commentaries on classics degree, increase and to be used for the moment of torsion of crank of moving beam.
Should understand the firm bar of length that the driving mechanism that will be positioned at the drilling well top is connected with the pump that is positioned at borehole bottom and have several tons weight, it also must be by the crossbeam support.In order to strengthen the efficient of mechanism, this weight must be balanced.Although some recent mechanisms have used gas spring (with the form of pneumatic cylinder as " support " under the crossbeam load end), yet counterweight forces (counterbalancingforece) is that the form of eccentric weight is more general, is connected on the bar axle of the crank mechanism that drives the vibration crossbeam.
From period the earliest, pumping stroke (pumping stroke) is about ten feet (two or three meters) traditionally, one minute about 5 (between 1 to 10) stroke of pumping frequency.Should be understood that tradition selects to be by relevant big quality always and will to place high pressure and the bearing of " donkey nods " mechanism will be caused the asymmetric effect of equipment of heavy wear definite on parts.
Conventional machines has many movable members, needs running in year running in 365 days, a day to last for several years in 24 hours, therefore, will be understood that, need make regular check on, go up lubricant oil, maintenance and repair.
Further will appreciate that, pumping mechanism be in the past always only at they mechanical function and design.Their design method is that integral body is paid close attention to a kind of reliable method that promotes in the bar axle and put down the stock post is provided always, and wherein liquid promotes by the up stroke self of bar axle at pump.In the design of this mechanism, do not give significant concern to the member of the efficient of sensing pumping operation or to the member of the reaction of the particular case of the load that can influence pumping unit strongly.For example, this mechanism of prior art does not comprise sensing and usually to the ability such as dry-well, disconnected roofbolt or card valve situation appropriate reactions such as (stuckvalve) within himself.This situation only just can be found or diagnose out in routine check with when safeguarding, and this situation that is untreated not only can lose output before discovery, and is that pumping mechanism is caused the badly damaged reason always.
In recent years, designed various alternative systems, some of them are used direct applied fluid power to promote and are reduced polished rod.The suggestion of other alternative scheme uses direct acting linear electric machine, although do not achieve success commercial in them.
Illustration is by disclosed these suggestions in the 5th, 960, No. 875 U. S. Patents (Elf surveys product) of authorizing on October 5th, 1999.The document has been described a kind of mechanism, and the piston by this mechanism's oil pump (place boring deeply and near borehole bottom) is configured to combine with the drum armature of Linear Induction Motor.Should be appreciated that in the boring that is lowered to drilling well, the outer diameter of armature must be limited to only several inches.The 5th, 960, No. 875 U. S. Patent suggestions, in conjunction with piston and armature should by around the cylindrical coil group be driven vertically by the power of responding in the described armature, and because they also must be lowered and enter in the boring, described cylindrical powered coil also must have the outer diameter of the outer diameter that is slightly larger than piston.
Regrettably, the design of the linear electric machine of being advised has exceeded any technique known.The weight of the oil that must be improved by each up stroke of pump is several tons, thereby the power that must be produced by the minor diameter electromagnetic piston must be tens thousand of newton.But at this moment do not have this minor diameter motor can be configured the requirement of satisfying artificial lift mechanisms, and satisfy the requirement of oil plant service security with reasonable length, efficient and cost.Thereby should invent on commerce realizes unpractical.
The 5th, 196,770 U. S. Patents of authorizing on March 23rd, 1993 (sea-freight oil equipment) have also been described a kind of cylindrical linear electric actuator.In this case, described linear electric actuator is placed on the top of drilling well and drives the pump that thick roofbolt comes mobile submergence.The linear electric actuator of this suggestion is than the 5th, 960, advise in No. 875 U. S. Patents much bigger, recuperation is many, more complicated, more expensive.It is described as has the induction design, perhaps alternately has synchronous, asynchronous or the variable reluctance design.Unfortunately, known all these efficient aspect the speed of typical oil field pumping running and commutative rate are low.Making this linear electric machine reach allowing them also is expensive by the standard of the safety requirement of the power equipment in the inflammable gas environment.
Also have further shortcoming, promptly movable member or armature and fixed component or stator all must be by electric power without interruption many kilowatts.Therefore, exist cooling difficulty (by electric efficiency low and with heat derive movable body need produce) and other relate to and making to the continuous problem of bending of the power cable of movable member.Do not have reliable linear electric actuator to be formed at and satisfy requirement of the present invention when having reasonable prices, size and weight.
Especially should be noted that the machine of being advised has fixing (being scheduled to) counterweight of big machinery weight form at the far-end that turns over the cable of turnback around pulley, make cable and pulley bearings all extremely be pushed and will need frequent replacement.Described this set in alternative scheme, be provided with by this, armature is effectively suspended from the pneumatic linear actuator (or a pair of this cylinder) of the part of formation gas spring, provides (being scheduled to) counterweight forces thereby wherein gas spring is pressurized.
The 2nd, 250, No. 739 Canadian Patents (Raos) that on May 30th, 2006 authorized provide a kind of machine, and wherein motive force is simple linear electric machine, and this linear electric machine is contemplated the rectangle armature that becomes to have the weak point that extends between two rectangle stators.If be not impossible, it is very difficult to design this motor so and be, wherein this motor can be created in use remain valid under the desired low speed and when satisfying in the environment of oil field legal requirements to safety in order to the required enormous power of drive machines.
It is to have very big steel spring that the form of preferred counterweight forces is said to be, and described spring is compressed between the bottom and armature of machine, so that support the armature of the static load of anti-roofbolt.(weight that should be understood that roofbolt can be approaching tens of tons).As known, by spring applied force and its compression or extend directly proportional.The routine of this counterweight forces required be, when the stroke distances that armature passes adds or deducts 1.25 meters (2.5 meters or 100 inches of total displacements), power should remain on its setting value 10 within.This means that the length that is compressed with the spring that supports described roofbolt must be its essential about 50 feet of reduction length not of about 12.5 meters or 40 feet-be.This particle spring (massive spring) perhaps will have several meters outer diameter.Although mentioned the alternative use air pressure or the Weighting system of hydraulic pressure, they are not described, and do not have related invention to be protected by claimed.Mentioned another alternative counterweight side type, it is the mechanical counterweight that is connected with pulley via cable, has about the 5th, 196 the same shortcoming (on seeing) of No. 770 U. S. Patent descriptions.
Although the critical importance of the 2nd, 250, No. 739 Canadian Patents instruction counterweight forces values, yet the counterweight forces of invention as described is not only predetermined and is nonadjustable, the situation that it can not response change and changing thus.
The linear electric machine type of describing in the 2nd, 250, No. 739 Canadian Patents will show as switching mode variable reluctance machine, wherein the separate part of stator conversion direction under microprocessor control.The design of this motor will be very complicated, and not have such motor to be known the strict demand that can satisfy this application.
In addition, although the 2nd, 250, No. 739 Canadian Patents have instructed linear electric machine about its stroke of change and speed under telecontrol with from the advantage aspect the ability of the local urgency of dynamic response.Its do not describe any method that can detect these situations-so machine detects and the ability of response urgency not by claimed.
Industrial applicibility
The present invention is applied to the liquids recovery from dark bar axle and boring of form of ownership.
Advised that vertically disposed linear electric machine will be in order to drive the prior art invention of motion of Dormant oils pump restricted at four critical aspects by being connected directly to its roofbolt:
1, is proposed that neither one can produce needed mechanical force in the linear electric machine of type when having fair-sized, weight, efficient and cost;
2, neither one constantly adapts to the variation of pumping situation always in the Weighting system that is proposed, so that the dynamic load on the linear electric machine is minimized;
3, the gas spring counterweight neither one that is proposed is optimised in order to storage and the recirculation of energy in reciprocator continuously; And
4, the linear electric machine neither one that is proposed type inherently can sensing load, makes its current command signal can be used for control mechanism on the whole.
Summary of the invention
An object of the present invention is to make up very practical reciprocal pumping (or " artificial lifting ") mechanism, this mechanism uses very strong, the high-efficiency linear electric machine that combines with the inert gas spring counterweight that adapts to, and this device is particularly suitable for oil well and is used for those occasions that underground gas storage dewaters are united use.
Another object of the present invention be the artificial lift mechanisms of the novelty that combines with the electric drive unit of traditional design and standard size can the various pumping situations of sensing, they are reported to remote monitoring center, response remote command and/or mostly in a predefined manner plant urgency and automatically react immediately.
Another object of the present invention is, compare with the mechanism of prior art, this novel artificial lift mechanisms should be compact, complete closed, weight is lighter, cost is lower, satisfies all legislative rules at this equipment under the oilfield conditions simultaneously.
Another object of the present invention is, machine should be configured to allow energy to be stored in a part of pumping cycle period in following this mode, that is, this mode is that energy can be resumed during the circuit subsequent section, thereby improves the efficient of reciprocator.
Another object of the present invention is, machine should so be constructed, make that each standard mark (marc) or model can the controlled drilling wells that must be fit to broad range, therefore be reduced to the quantity that satisfies the necessary different models in market, the training of stock inventory, manufacture cost and field operation is minimized.
Main advantage of the present invention comprises:
The mechanism of i, prior art adopts many stressed movable members, and global reliability depends on the good running that it continues.In this technology that produces at once, single movable member is an extendible members, makes the reliable inherently and Maintenance free almost of this mechanism;
Ii, because machine vertically is placed on bar axle top usually, wherein polished rod withdraws from drilling well from this bar axle, so mechanical stress and bearing surface quadrature and bearing wear minimize;
Iii, since the gas balance weight mechanism constantly be tuned to its parameter, so power consumption also is minimized;
Iv, the inert gas that is used for the counterweight function are pressurized at the matrix of electrical system, make it therefore prevent that also any inflammable gas or liquid aerosol from contacting with electric device, eliminated the risk of fire or blast;
V, machine and have the electric drive unit of driving current output signal and auxiliary related uses of calculating facility makes that device can be from monitoring, self-regulation and self-protection, thus make productivity maximize, minimized service time;
Vi, machine seldom consume inert gas in normal operation, because it is equipped with economic cabin, regulate diurnal temperature variation (it can cause serious inert gas consumption usually) and free of losses by this economic cabin;
Vii, this machine integrally closed and safety are in order to avoid the unexpected contact of human or animal makes that the protective gear around the well head is simplified;
Viii, this machine are noiseless fully, can be used in the zone of ecological, environmental protective;
Ix, reciprocating parameter (running length, cycle frequency, waveform etc.) can be controlled automatically according to predetermined policy and in response to the pumping situation that any kind may occur, therefore make the maximized service life of a machine of protecting simultaneously of productivity; And
X, because the parameter of Weighting system is adjusted to indivedual load automatically, and because stroke, stroke frequency and the waveform of reciprocation cycle are independently, remotely and automatically variable on wide in range scope, the machine of entity identical (" standard ") can be applied to many different pump specifications.Therefore, necessary product scope is minimized, the time shortening that manufacture cost reduction, stock keep (stockholding) to be simplified and be used for product training and field operation.
In the present invention, this machine is included at least one cylindrical linear electromagnetic actuators that the contiguous well head in well head top is placed, this linear electromagnetic actuator complete closed also has the slip seals, comes out by the matrix circuit of this slip seals extendible members from actuator; The pumping tubing string is connected to extendible members by polished rod or equivalent elements, the static load of pumping tubing string is by the pressure support of the inert gas of the electromagnetic actuators that is arranged in sealing, the to-and-fro motion of pumping tubing string is driven by the electromagnetic force that acts on the extendible members, thereby being regulated automatically, inert gas pressure makes minimum power consumption, one intermediate pressure cabin and valve arranged, valve is configured to reduce the gas consumption that causes by the diurnal temperature circulation, actuator is controlled by electric drive unit, and have be included in wherein or measure the member that drives the necessary transient current of described actuator with its being used to of can communicating by letter, described current measurement is analyzed according to pre-defined algorithm, the binding mode of inert gas balance pressure and pumping mechanism is configured to follow difficult described algorithm from dynamic response, and related data also is transferred to the remote monitoring station.
Should be understood that up to date, adopt linear electromagnetic actuator to drive artificial lift pump and be used for oil or gas well neither reality is not favourable again always.This mainly is can not obtain with acceptable cost because have the linear electromagnetic actuator of enough thrust and power always.Recently the radio set of invention has changed this situation, former impossible be practical now.Usually, linear electric machine assembly used among the present invention will be according to one of radio set patent structure, one of them example, and No. 06179989.9 B. P. may be especially relevant in this case.However, it should be understood that principle and theme according to application demand are met by improving this machine, one or more electromagnetic actuators can not change fundamental property of the present invention with the formal construction easily of any reality.
Usually, the position of extendible members will be by suitable sensor measurement, and the electromagnetic actuators that forms the part of extendible members will be supplied electric current via the electric drive unit of type, and wherein the electric drive unit of type is designed to use and be used for factory with electric rotating machine control purpose automatically and can obtain usually at first.This standard driver element has a plurality of very useful features, be supplied to the electric current of motor and the driving voltage of process motor terminals all to be sampled (electric current is the direct measurement to the power that is produced by motor, and voltage is to the measurement in the speed that moves) thus with the time lag of different frequency.And electric drive unit will have remaining power supply output and available residue computing capability usually, sometimes on plug and play module independently.
Extendible members is followed the sinusoidal waveform of predetermined amplitude and frequency by order, and the required driving current of motor is sampled, for example, and each circulation 100 times.Current measurement is divided into two groups-motion measurement and the downward measurement of moving-each batch total the is calculated root mean square of motor drive current upwards.The rms value is repeated for example ten complete cycle, described value addition.For example, if the difference of two values promptly, at this moment improves the required power of extendible members and obviously exceeds its needed power of loweing greater than tolerance value, then by opening the quality that control valve a period of time increases the gas in the spring, the cumulative time of wherein opening is directly proportional with plussage.On the contrary, if its energy at down stroke compressed-gas springs needs is bigger than its energy at up stroke raising gas spring needs, then take the phase countermove, the quality of the gas in the spring is reduced.Power consumption that can proof system is minimized by top algorithm.
If the pumping effect stops (for example, perhaps because of the tubing string fracture) suddenly, same algorithm will detect the required power of mobile tubing string immediately and the pressure in the gas spring is descended rapidly to protect the poor of the required power of machine.Then the pumping effect may stop fully, and perhaps motion only is reduced to by a small margin.Before the fracture and the difference of afterwards gas pressure direct assessment to fracture position will be provided, make assessment to be calculated and to transfer to the center monitors facility automatically.
Should understand air-lock or valve fault also will be to spreading all over the pattern generating immediate impact that each pumping follows the current value that is write down.Therefore, be independent of algorithm in order to the adjustments of gas spring pressure, thus a plurality of integral body independently computerized algorithm can be configured to handle strict identical loop-around data and detect this class other is unusual.
The pattern of the current value measurement of the instant power that adopted by motor (that is, to) comprises about the amount that is in the liquid in the setting prop and it is by the detailed information of the ratio of pumping (rate).In addition, therefore the automatic analysis of these data can be used to the center monitors station to prepare to be used for telemetric periodic monitoring report.
Usually, one or more actuators will be columniform, have the extendible members that cylindrical cross section is arranged, and they will comprise gas spring in the starter housing.Should be understood that in alternative scheme, can be constructed expediently in one or more gas springs and separate setting with electromagnetic actuators.
Usually, the polished rod of pumping tubing string will be passed the cylindrical channel that is positioned at the opening on the central shaft of actuator, and this cylindrical channel is configured to polished rod is separated with the pressurized matrix of machine, makes polished rod stay actuator self " outside ".Should be understood that in alternative scheme machine can symmetrically arranged actuator constitutes across polished rod by a plurality of, and is connected to polished rod by crosshead.
In this device of traditional form, electrical system is a stator, and magnet array is an armature, but in alternative device of the present invention, electrical system can be an armature, and magnet array can be a stator.
Description of drawings
Fig. 1 is the schematic cross section of foundation cylinder shape mechanism;
Fig. 2 is the schematic representation of the replacement device shown in Fig. 1;
Fig. 3 is the schematic representation of another replacement device of the device shown in Fig. 1; And
Fig. 4 one can preserve the schematic representation of apparatus of gas, otherwise gas wherein can lose because of temperature change between order.
Same reference character is represented components identical.
Embodiment
With reference to Fig. 1, be depicted as the profile diagram of foundation cylinder shape mechanism, wherein the polished rod 1 of pumping tubing string is suspended from disk 2 by shackle or flexible coupler 3.Flexible coupler is necessary to adapt to the small tolerance that may exist or may occur moment between the direction of the axle of machine and applied force on aiming at.Bar 1 passes cylindrical channel or the chamber that is arranged in mechanism's matrix, and this passage or chamber are defined by last pipe 7 and following pipe 5.The inside of mechanism becomes airtight by the stuffing box bearing unit 8 between coaxial pipe 5 and 7.
Should be understood that gas pressure in the volume 10 will be according to the position of pumping cycle period extendable members 6 and adiabaticity changes.Therefore electromagnetic actuators 12,11 will make energy so that the mode that minimum power consumption and peak value electricity needs reduce greatly is stored in the gas spring or therefrom release.
Referring now to Fig. 2, be depicted as alternative device, wherein a plurality of linear electromagnetic actuators can be connected to polished rod by crosshead sheet (cross-head piece).In the figure, for purpose clearly illustrates two this linear electromagnetic actuators, they are symmetrical arranged across polished rod, and be configured to comprise form gas spring be subjected to the pressure type extendible members, therefore counterweight forces and energy storage device with the quality association of roofbolt and fluid column are provided.Identical reference character represent with Fig. 1 in used element components identical.
Fig. 3 shows another alternative device schematic representation, and wherein at least one unit has pure pneumatic function, and does not contain electromagnetic actuators, makes it play gas spring.Two this gas spring unit 14 are shown, and described gas spring unit has symmetrically arranged piston rod or thrust tube 15 across well head (well head), and two electromagnetic actuators equivalences of form shown in Fig. 2 are provided with.Should understand in practice, the crosshead that connects gas spring unit 14 can be perpendicular to the crosshead that connects linear electric machine.Should be understood that any device with a plurality of gas spring assemblies and a plurality of linear electric machine assemblies, no matter the function of these assemblies is in conjunction with whether, will carry out needed function and do not change character of the present invention.
Fig. 4 shows has schematic apparatus middle or joint power cabin (economizing pressure chamber) 16 and mortor operated valve 17,18 and 19.Should be understood that valve can in fact be installed within the cabin 16 of sealing and therefore be immersed in the inert gas environment.Should recognize at first that the gas in the balance weight mechanism 10 is not constant, but change in pumping cycle period that when extendible members 6 was enhanced summit, gas pressure reached minimum value, when the pumping tubing string was positioned at minimum point, gas pressure was in maximum value.Think that at first the middle duty pressure of the gas in pressure and the gas spring cabin 10 of the gas in the economic cabin (economizing chamber) 16 is approximately identical.If now the quality of the gas in the balance weight mechanism is necessary to increase, valve 17 is opened only very short time period so, and the pressure of gas spring 10 is in or near its minimum point simultaneously.Then gas will immerse the gas spring volume from economic cabin.On the contrary, if must reduce the pressure of the gas in the spring 10, valve 17 is opened only very short time period, and spring pressure is in its maximum value simultaneously.
The main application in economic cabin and diurnal temperature circular correlation.Should be appreciated that, for example, the gas in temperature lower spring in the daytime and the pressure of the gas in the economic cabin all will increase, but the quality that reduces gas in the spring by above-mentioned method where necessary will be still possible, by excess gas being moved into economic cabin unactual discarded it, and optimize the power consumption of artificial lift mechanisms thus.At night on the same day, the temperature of mechanism will descend, and be necessary gas is moved back into the spring 10 from economic cabin 16, thereby so that keep its pressure to produce correct counterweight forces under this temperature.By with previously described mode valve 17 operation timing being finished refluence-but in this case, the pressure that is arranged in its stroke top and gas spring cabin when extendible members is during in minimum value, and valve is opened a very short time period.
Should understand principle of the present invention and be not limited to permanent magnet motor, but can expand to the electric actuator that comprises any other type, comprise those electric actuators that use electromagnet or the generator that adopts principle of induction, such as those generators of describing in relating to the multiple co-pending patent application of radio set, wherein permanent magnet array is replaced by the passive device (passive arrangement) of patterned conductivity lamination.When travelling-magnetic-field is produced by the phasing alternating current in the power conductor, eddy current specially is set in passive conductor array, flows, and the interaction effect of induction current and controlled alternating current produces axial force.Although the axial force that is produced is littler than the power that produces by the machine that uses permanent magnetic field or produce by the machine that uses the magnetic field that is produced by electromagnet, the form cost of structure is littler, weight is lighter.Under certain situation, cost and weight advantage can be offset the poor efficiency of induction machine.
Claims (14)
1. mechanism that is used to drive reciprocating pump or artificial lifting means, described mechanism has linear electric machine and at least one gas spring, it is characterized in that, the quality of the gas in described at least one spring is according to the electric current demand of described linear electric machine and by continuous control, described electric current demand comprehensively draws in a plurality of complete work cycle of described reciprocating pump or artificial lift mechanisms.
2. mechanism according to claim 1, wherein, at least a portion dead weight that described linear electric machine is connected to the bar of described reciprocating pump or roofbolt is supported by controlled gas spring.
3. mechanism according to claim 2, wherein, described controlled gas spring is provided in stored energy during its componental movement, thereby makes the motion that helps reciprocator that discharges subsequently of described energy reduce electricity needs.
4. according to each described mechanism among the claim 1-3, wherein, the gas in described at least one gas spring is inert gas.
5. according to each described mechanism of claim 1-4, wherein, at least one linear electric machine is set to promote and reduce extendible members, described extendible members is set to pass the slip seals on the top that is arranged in the cabin, described cabin comprises or forms the part of the structure of described linear electric machine, forms combined type linear electric machine and gas spring thereby described cabin is filled with pressurized inert gas.
6. mechanism according to claim 5, the top of described fabricated structure is equipped with protective cover, is used to protect the surface of described extendible members, and described protective cover appears in one's mind out from the pressurized casing that comprises described linear electric machine.
7. according to claim 5 or 6 described mechanisms, described mechanism comprises middle cabin, and described middle cabin is related with described gas spring, and is connected with described gas spring with mortor operated valve.
8. according to claim 5 or 6 described mechanisms, described mechanism also comprises sensor, described sensor is set to measure the pressure difference of crossing over described valve, and described cabin is connected to the source of pressurized inert gas via mortor operated valve, and is connected to outside atmosphere via second valve.
9. mechanism according to claim 8, the valve in described cabin is operated according to the algorithm relevant with the motion of the electric current demand of described linear electric machine, described reciprocating thrust force pipe and the pressure difference that recorded by described sensor, thereby uses and preserve the inert gas supply source.
10. according to each described mechanism of claim 1-9, wherein, the measured value of the transient current demand of described linear electric machine is by arithmetic processing, thus calculate at least the pumping running key parameter, detection failure and unusual, start suitable from dynamic response, prepare to be used to transfer to the information and the combination thereof of location far away.
11. one kind is used for it is characterized in that from the device of dark bar axle or boring pumping liquid described device comprises following combination:
Linear electric machine; And
Be used for the gas spring counterweight of cooperating, thereby described spring action so that being removed and be used for storage and recycled energy from described motor, all static load power consumes dynamic electricity side to minimize with described linear electric machine.
12. device according to claim 11 is characterized in that, the quality of the gas in the spring changes according to the comprehensive current drain of motor.
13. device according to claim 11 is characterized in that, described device is set to not only fully independently but also may command remotely.
14. be used for it is characterized in that, said method comprising the steps of from the method for dark bar axle or boring pumping liquid:
Device as claimed in claim 11 is provided;
Described device is connected to the pump that is positioned within the described drilling well via roofbolt;
To the controlled electric power of described device provisioning; And
Regain described liquid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CA2007/001714 WO2009039602A1 (en) | 2007-09-25 | 2007-09-25 | Artificial lift mechanisms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101815871A true CN101815871A (en) | 2010-08-25 |
Family
ID=40510690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200780100793A Pending CN101815871A (en) | 2007-09-25 | 2007-09-25 | Artificial lift mechanisms |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20100310385A1 (en) |
| CN (1) | CN101815871A (en) |
| CA (1) | CA2697984C (en) |
| GB (1) | GB2465714A (en) |
| MX (1) | MX2010003221A (en) |
| RO (1) | RO125784A2 (en) |
| WO (1) | WO2009039602A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573596A (en) * | 2012-07-18 | 2014-02-12 | 内达·阿兰内齐 | Dynamic fluid pump |
| CN104047577A (en) * | 2014-05-28 | 2014-09-17 | 河南理工大学 | Linear motor direct-driven pumping unit |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0914954D0 (en) * | 2009-08-27 | 2009-09-30 | Denne Phillip M R | Artificial lift structures |
| CN103452473B (en) * | 2013-08-20 | 2015-11-18 | 河北建设勘察研究院有限公司 | One utilizes tunneling boring high counterweight drill bit device to carry out small-diameter deep well construction method |
| US9677390B2 (en) * | 2014-12-04 | 2017-06-13 | Amik Oilfield Equipment And Rentals Ltd. | Reciprocating pump drive assembly |
| CA2999489C (en) | 2015-09-21 | 2021-09-28 | AMI Investments, LLC | Remote monitoring of water distribution system |
| US10731762B2 (en) | 2015-11-16 | 2020-08-04 | Baker Hughes, A Ge Company, Llc | Temperature activated elastomeric sealing device |
| US10087698B2 (en) | 2015-12-03 | 2018-10-02 | General Electric Company | Variable ram packer for blowout preventer |
| US10214986B2 (en) | 2015-12-10 | 2019-02-26 | General Electric Company | Variable ram for a blowout preventer and an associated method thereof |
| CN110213632B (en) * | 2019-04-23 | 2021-07-30 | 浙江六客堂文化发展有限公司 | Video playing system containing user data processing and use method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2122888A (en) * | 1934-10-03 | 1938-07-05 | Joseph F Mcleer | Electrical drill or hammer |
| US6213722B1 (en) * | 1996-03-29 | 2001-04-10 | Davor Jack Raos | Sucker rod actuating device |
| US6506030B1 (en) * | 1999-01-05 | 2003-01-14 | Air Products And Chemicals, Inc. | Reciprocating pumps with linear motor driver |
| CN1719032A (en) * | 2005-07-22 | 2006-01-11 | 王善政 | Steel wire cable type electro immersion permanent magnet linear reciprocating pump |
| CN101010512A (en) * | 2004-08-24 | 2007-08-01 | 克劳斯科技管理公司 | Pump jack apparatus and pumping method |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4114375A (en) * | 1976-04-09 | 1978-09-19 | Canadian Foremost Ltd. | Pump jack device |
| US4297088A (en) * | 1979-09-07 | 1981-10-27 | Baker International Corporation | Pump assembly comprising gas spring means |
| US4291761A (en) * | 1980-04-18 | 1981-09-29 | Multi Products Co. | Magnetic sensing device |
| US4687054A (en) * | 1985-03-21 | 1987-08-18 | Russell George W | Linear electric motor for downhole use |
| FR2640442B1 (en) * | 1988-12-12 | 1991-02-01 | Marine Petroleum Equipment | CONSTANT POWER AND ALTERNATIVE VERTICAL MOVEMENT UNIT FOR LIFTING STEP LOADS |
| US5145332A (en) * | 1991-03-01 | 1992-09-08 | Atlantic Richfield Company | Well pumping |
| US5409356A (en) * | 1992-06-11 | 1995-04-25 | Massie; Lewis E. | Well pumping system with linear induction motor device |
| US5536150A (en) * | 1994-07-28 | 1996-07-16 | Tucker; Joe W. | Hydraulic-pneumatic stroke reversal system for pumping units, and its application in preferred embodiments |
| US5831353A (en) * | 1994-10-17 | 1998-11-03 | Bolding; Vance E. | Modular linear motor and method of constructing and using same |
| FR2746858B1 (en) * | 1996-03-29 | 2001-09-21 | Elf Aquitaine | LINEAR MOTOR ELECTRIC PUMP |
| US6873267B1 (en) * | 1999-09-29 | 2005-03-29 | Weatherford/Lamb, Inc. | Methods and apparatus for monitoring and controlling oil and gas production wells from a remote location |
| US7001157B2 (en) * | 2001-02-26 | 2006-02-21 | “Castles” Home Services Inc. | Well pumping unit driven by linear motor |
| US20050173850A1 (en) * | 2003-03-20 | 2005-08-11 | Rose Mark M. | Linear electric motor assisted gas spring |
-
2007
- 2007-09-25 US US12/679,087 patent/US20100310385A1/en not_active Abandoned
- 2007-09-25 RO ROA201000287A patent/RO125784A2/en unknown
- 2007-09-25 CN CN200780100793A patent/CN101815871A/en active Pending
- 2007-09-25 GB GB1003929A patent/GB2465714A/en not_active Withdrawn
- 2007-09-25 CA CA2697984A patent/CA2697984C/en not_active Expired - Fee Related
- 2007-09-25 MX MX2010003221A patent/MX2010003221A/en not_active Application Discontinuation
- 2007-09-25 WO PCT/CA2007/001714 patent/WO2009039602A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2122888A (en) * | 1934-10-03 | 1938-07-05 | Joseph F Mcleer | Electrical drill or hammer |
| US6213722B1 (en) * | 1996-03-29 | 2001-04-10 | Davor Jack Raos | Sucker rod actuating device |
| US6506030B1 (en) * | 1999-01-05 | 2003-01-14 | Air Products And Chemicals, Inc. | Reciprocating pumps with linear motor driver |
| CN101010512A (en) * | 2004-08-24 | 2007-08-01 | 克劳斯科技管理公司 | Pump jack apparatus and pumping method |
| CN1719032A (en) * | 2005-07-22 | 2006-01-11 | 王善政 | Steel wire cable type electro immersion permanent magnet linear reciprocating pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573596A (en) * | 2012-07-18 | 2014-02-12 | 内达·阿兰内齐 | Dynamic fluid pump |
| CN104047577A (en) * | 2014-05-28 | 2014-09-17 | 河南理工大学 | Linear motor direct-driven pumping unit |
Also Published As
| Publication number | Publication date |
|---|---|
| US20100310385A1 (en) | 2010-12-09 |
| CA2697984C (en) | 2015-07-21 |
| RO125784A2 (en) | 2010-10-29 |
| MX2010003221A (en) | 2010-04-07 |
| WO2009039602A1 (en) | 2009-04-02 |
| CA2697984A1 (en) | 2009-04-02 |
| GB2465714A (en) | 2010-06-02 |
| GB201003929D0 (en) | 2010-04-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101815871A (en) | Artificial lift mechanisms | |
| US7373971B2 (en) | Pump jack and method of use | |
| AU2005284521B2 (en) | A nc reciprocating immersible oil pump | |
| US20140014318A1 (en) | Hydro pneumatic lifting system and method | |
| US20070075545A1 (en) | Zero pollution vertical/linear electrical generation facility | |
| CA2654673C (en) | Artificial lift structures | |
| CN1840904A (en) | Ultra-low speed big torsional moment special-shape motor dragging and tower type high-efficiency low-consumption intelligent pumping unit | |
| CN104019019A (en) | Energy storage type linear motor capsule pump | |
| CN100410535C (en) | Fishable linear motor reciprocating pump | |
| del Castillo-García et al. | Energy harvesting from vehicular traffic over speed bumps: A review | |
| CN1970988A (en) | Dual-cylinder double-effect power-saving economical pumping unit for use in steel strip reciprocating type ultra-long-stroke pumping device | |
| CN201180636Y (en) | Numerical control reciprocating type oil-submersible motor driven oil pump | |
| US20070246940A1 (en) | Highway's electrogenerators | |
| CN103982161A (en) | Intelligent double-speed oil production control device | |
| US11204028B1 (en) | Pumping unit with end return for positioning drive | |
| WO2011022826A1 (en) | Artificial lift structures | |
| CN104135135A (en) | High-efficiency large-thrust cylindrical permanent-magnet linear motor for oil pumping unit | |
| CN2736557Y (en) | Rodless driving mechanism for reciprocating oil well pump | |
| CN2599279Y (en) | Rodless automatic oil well pump for deep well | |
| Qian et al. | Research and application of key technology of electric submersible plunger pump | |
| CN104779733B (en) | A kind of submersible electric machine with oil | |
| CN207004488U (en) | A kind of pumping unit of machine pump regulation | |
| Yashin et al. | Characteristics Analysis of Linear Submersible Electric Motors for Oil Production | |
| Shishlyannikov et al. | Pilot test results for promising drives of sucker-rod pumping units | |
| CN1034026C (en) | Reciprocating-hydraulic combined pumping device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100825 |