CN108518208A - Layered oil production device with ground program control function - Google Patents
Layered oil production device with ground program control function Download PDFInfo
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- CN108518208A CN108518208A CN201810232605.1A CN201810232605A CN108518208A CN 108518208 A CN108518208 A CN 108518208A CN 201810232605 A CN201810232605 A CN 201810232605A CN 108518208 A CN108518208 A CN 108518208A
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- spring
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- 238000004519 manufacturing process Methods 0.000 title abstract description 18
- 239000004576 sand Substances 0.000 claims abstract description 45
- 238000011010 flushing procedure Methods 0.000 claims abstract description 39
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 239000003129 oil well Substances 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 238000000465 moulding Methods 0.000 claims description 22
- 238000005086 pumping Methods 0.000 claims description 16
- 230000033228 biological regulation Effects 0.000 claims description 15
- 230000011664 signaling Effects 0.000 claims description 13
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 7
- 238000004146 energy storage Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000003801 milling Methods 0.000 claims description 3
- 238000005381 potential energy Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 2
- 238000003556 assay Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B43/14—Obtaining from a multiple-zone well
-
- E21B41/0092—
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Engineering & Computer Science (AREA)
- Operations Research (AREA)
- Earth Drilling (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a program ground-controllable layered oil production device, which comprises a first packer and a second packer, wherein the upper section of the first packer is a liquid production part, the lower section of the first packer is a liquid supply part, the liquid production part comprises an oil well pump and a well flushing valve body, a pump tail pipe is arranged outside the oil well pump, the inner side of the well flushing valve body is sequentially provided with a well flushing valve upper joint, a second check valve, a first check valve, a well flushing liquid inlet hole, a ball seat and an oil drainage sleeve from top to bottom, a sealing steel ball is arranged in the ball seat, and a reset spring is arranged between the ball seat and the well flushing valve lower joint; the liquid supply part comprises a first sub-production pipe column, a sand loosening type safety joint, a second packer, a second sub-production pipe column, a connecting short section, an oil drain, a tail pipe and a blind plug, wherein the first sub-production pipe column is sequentially provided with a first hydraulic switch, a first sand filtering pipe and a first balance valve from top to bottom, and the second sub-production pipe column is sequentially provided with a second hydraulic switch, a second sand filtering pipe and a second balance valve from top to bottom.
Description
Technical field
The present invention relates to a kind of oil exploitation devices, and in particular to a kind of program can ground regulation and control layering pumping unit.
Background technology
In oilfield production, multilayer position is a common phenomenon, in numerous layer positions, the grease content and ground of liquid
The ground energy situation of layer is different, in order to improve benefit, layering oil production technology（Fine-grained management is carried out to oil reservoir）It is a kind of ratio
Comparatively ideal method.In numerous demixing technologies,《A kind of layering pumping unit》（Patent No. 201310471568.7）It is
With a kind of more satisfactory scheme, it overcomes " short-lived " of " electricity "（Because hole condition and power consumption greatly caused by）, hydraulic line it is cumbersome,
Accomplish simple in structure, easy to operate practicality really in use, achieves good economic benefit, but due to the limit of condition
System, the technique there is also some problems.
First is when stratum energy has big difference, and original tubing string makes part due to not having signaling switch to carry out pressure limiting
There is the layer position for changing not trend in well.Second is since the tubing string is unidirectional, and the commutation described in script is to be pressed onto track pin
Commutation position, and actual commutation is spontaneous after oil well production, material is thus formed can not one in a use
It is secondary continuously to suppress commutation, it gives commutation operation to bring certain difficulty in this way, in the present invention, increases equilibrated valve and solve well
It has determined the problem.Third is in actual production, and it is unclear that human factor causes to suppress sometimes program, for this purpose, the present invention pass through it is right
Hydraulic selector is transformed, reach program can ground regulated and controled.4th is when original tubing string point is prevented dividing and be adopted, due to rubbing for sand
It is excessive to wipe resistance, former tooling the phenomenon that there are overhauls, in this regard, the present invention increases the safety joint of fluffing of moulding sand formula to avoid overhaul.5th
It is, so the liquid in well workover in tubing string cannot release, difficulty to be caused to operation, to ring since former tubing string is one unidirectional
Border damages, and the present invention solves the problems, such as this by increasing bleeder.6th is suppressed since oil production by layer is unidirectional
Program can be influenced, i.e. well-flushing is limited, for this purpose, invention increases flushing valves to reduce well-flushing difficulty.
Invention content
The purpose of the present invention aiming at defect of the existing technology, provide a kind of program can the layerings of ground regulation and control adopt
Oily device, one-trip string can complete oil production by layer, once-through operation can carry out the construction that repeatedly commutates, and process is greatly saved, and reduce
Labor intensity and operating cost, shorten the construction period；When well workover, well can be disposably salvaged, to environment and personnel without not
The effect that profit influences.
Its technical solution is：A kind of program can ground regulation and control layering pumping unit, which is in tripping in oil well casing
, including oil well casing, the first packer and the second packer, the epimere of the first packer are to adopt liquid part, the first packer
Hypomere be feed flow part, it includes oil well pump and well-flushing valve body to adopt liquid part, and pump tail pipe, flushing valve sheet are equipped on the outside of oil well pump
The inside of body is equipped with flushing valve top connection, the second ball-and-seat, the first ball-and-seat, well-flushing inlet opening, ball seat, lets out successively from top to bottom
Oil jacket, draining set inside are connected with flushing valve lower contact, and the lower end for pumping tail pipe is connect with flushing valve top connection, is connect under flushing valve
Head is connect by self-packer with oil well casing, and sealed steel ball is equipped in ball seat, is equipped between ball seat and flushing valve lower contact multiple
Position spring；Feed flow part including first point adopt tubing string, the safety joint of fluffing of moulding sand formula, the second packer, second point adopt tubing string, connection it is short
Section, bleeder, tail pipe and blind plugging, described first point adopt tubing string from top to bottom successively be equipped with the first hydraulic selector, the first sand screen,
First balanced valve adopts tubing string for described second point and is from top to bottom equipped with the second hydraulic selector, the second sand screen and the second balance successively
Valve, wherein first point is adopted tubing string composition first layer position liquid-supplying system, and second point is adopted tubing string composition second layer position liquid-supplying system：Root
Multiple layers of position liquid-supplying system are set according to oil reservoir quantity, realize the exploitation respectively of multiple oil reservoir layers position.
Preferably, the fluffing of moulding sand formula safety joint is from top to bottom equipped with fluffing of moulding sand formula safety joint top connection, safety scissors successively
It follows closely, cut ring, the first sealing piston and fluffing of moulding sand formula safety joint lower contact, wherein fluffing of moulding sand formula safety joint lower contact and the second envelope
It is connected every device, fluffing of moulding sand formula safety joint top connection is connect with the lower section oil pipe that first point is adopted tubing string.
Preferably, first hydraulic selector is identical as the second hydraulic selector structure, and the second hydraulic selector includes that hydraulic pressure is opened
It shuts connector, check pin, the second sealing piston, hydraulic selector central tube, commutation assembly, first pressure and restores spring, close
The upper end of envelope cylinder sleeve and hydraulic selector lower contact, the hydraulic selector central tube and seal cylinder sleeve, which is connected on hydraulic selector, to be connect
Head, hydraulic selector top connection are connect with top tubing string, and the lower end of hydraulic selector central tube and seal cylinder sleeve is connected with hydraulic selector
Lower contact, hydraulic selector lower contact are equipped with liquid pass hole, and hydraulic selector lower contact is connect with lower section tubing string, hydraulic selector central tube
Top be equipped with inlet opening, liquid by the inlet opening compression hydraulic switching center pipe of hydraulic selector central tube and seal cylinder sleeve it
Between commutation assembly, commutation assembly includes the second sealing piston, opened by pressure spring, check valve, single stream slipway, zero
Spring, spring base, single stream slipway pressure-bearing set, track pin, change, change pressure cap, are equipped with change in change pressure cap, in change
Equipped with track pin, and the track that milling depth is 2-3mm is equipped on the outer wall of hydraulic selector central tube, liquid passes through second
Sealing piston, check valve apply pressure to single stream slipway, single stream slipway pressure-bearing set, change pressure cap, are existed by track pin
The rotation commutation of change and the completion of zero program are realized in movement in track.
Preferably, first sand screen is identical as the connection structure of the second sand screen, and the second sand screen upper and lower ends are all
It is to carry out pipe screw thread by opening baffle ring and connector sleeve to connect with tubing string.
Preferably, first balanced valve is identical as the structure of the second balanced valve, and the second balanced valve includes the second balanced valve
Ontology, the second balance valve body are equipped with the second balanced valve top connection, energy storage piston, pressure release piston, power piston, pressure release bullet
Spring, power spring play pressure piston, play pressing spring, pressure regulating bolt, the second balanced valve lower contact, double-action plate, the second balanced valve
The top of lower contact and connecting short section connects, and the second balanced valve top connection is connect with connector sleeve and center oil pipe.
Preferably, first signaling switch is identical as second signal construction of switch, and it is flat that second signal switch is located at second
The drainage hole site of weighing apparatus valve, second signal switch includes signaling switch ontology, is internally provided with weld seam, pressure limiting piston, sealing tune
Pressure ball seat, steel ball, level pressure spring, sealing rubber ring, the upper and lower ends of signaling switch ontology are equipped with the screw thread silk of direct external connection
Button, is connect with top tubing string and lower part tubing string respectively by screw thread；By the potential energy of level pressure spring store, by opening for pressure limiting piston
Pressure limit is opened in scope of design, by the adjusting of pressure regulating bolt, obtains there should be design pressure, finally by having welded
At the integrated design of the tool.
Preferably, the bleeder includes bleeder ontology, tail pipe and blind plugging, on the inside of bleeder ontology from top to bottom successively
Restore spring equipped with draining ball seat, second pressure, the top of bleeder ontology and the lower part of connecting short section connect, bleeder ontology
Lower part and the top of tail pipe connect, the lower part of tail pipe is equipped with blind plugging.
Preferably, the track includes upper track, center railway and lower tracks, wherein the top dead-centre of upper track
It is made of with longer pass point interval shorter prescribing；The distal point of center railway is made of the identical reversal point interval of length,
Lower tracks are only there are one bottom dead centre, and for bottom dead centre with all reversal points respectively by orbit connection, bottom dead centre is that program is returned
Zero position.
The present invention compared with prior art, has the following advantages：
（1）, one-trip string can complete the construction that termination of pumping of oil production by layer repeatedly commutates, greatly facilitate the operation of program, save
About process, reduces labor intensity and operating cost, shortens the construction period；
（2）, due to the design of " zero ", layer position can be made to become more and program simplification, just substantially increase the suitable of the technique in this way
Ying Xing, while the loss that artificial maloperation is brought is also mitigated, so that the universal of the technique is reinforced；
（3）, due to the use of signaling switch so that " commutation " and " zero " of this technique has a definite value, which is design
Value, therefore, flow string of the invention is simple in structure, and operability is strong, is easy to live popularization；
（4）, bleeder design so that the technique is in well workover, safer environmental protection；
（5）, fluffing of moulding sand formula safety joint use so that the technique safety and reliability；
（6）, flushing valve use, relax well-flushing limitation so that the popularization of the technique has obtained prodigious expansion；
（7）Since the tubular column structure is simple, i.e., simple series connection has a public passage, therefore the tubing string is there are expanding space, such as
Fruit, which needs to be acidified, to be directly connected into acidification, while detector or tripping in detector can also be detected in series connection, then just
It is to lay base " with production " since oil production by layer can more accurately understand the present situation of bottom by simple operations for later
Plinth.
Description of the drawings
Fig. 1 is the structural schematic diagram of flushing valve of the present invention；
Fig. 2 is first point of structural schematic diagram for adopting tubing string and fluffing of moulding sand formula safety joint of the invention；
Fig. 3 is the structural schematic diagram of the second hydraulic selector of the invention；
Fig. 4 is the structural schematic diagram of the second sand screen and the second balanced valve of the invention；
Fig. 5 is the structural schematic diagram of overall structure of the present invention and bleeder；
Fig. 6 is the structural schematic diagram of second signal switch of the present invention；
Fig. 7 is the structural schematic diagram of track of the present invention.
Specific implementation mode
Embodiment 1：In conjunction with attached drawing 1-7, a whole set of tubing string be from top to bottom by Fig. 1-Fig. 4 concatenate, Fig. 4 with connected in Fig. 5 it is short
The lower part concatenation of section 53, to the present invention by taking the layer position of oil reservoir is two layers as an example, the invention will be further described：
A kind of program can ground regulation and control layering pumping unit, which is in tripping in oil well casing 3, including the first packer
1 and second packer 2, the epimere of the first packer 1 be to adopt liquid part, the hypomere of the first packer 1 is feed flow part, adopts liquid portion
It includes oil well pump 5 and well-flushing valve body 11 to divide, and 5 outside of oil well pump is equipped with pump tail pipe 4, and the inside of well-flushing valve body 11 is from top to bottom
It is equipped with flushing valve top connection 6, the second ball-and-seat 55, the first ball-and-seat 8, well-flushing inlet opening 14, ball seat 10, draining set 13 successively,
13 inside of draining set is connected with flushing valve lower contact 7, and the lower end of pump tail pipe 4 connect with flushing valve top connection 6, connect under flushing valve
First 7 are connect by self-packer with oil well casing 3, are equipped with sealed steel ball 9 in ball seat 10, ball seat 10 and flushing valve lower contact 7 it
Between be equipped with resetting spring 12；Tubing string 16, the safety joint 54 of fluffing of moulding sand formula, the second packer 2, second are adopted including first point in feed flow part
Divide and adopt tubing string, connecting short section 53, bleeder, tail pipe 60 and blind plugging 61, adopts tubing string 16 for described first point and be from top to bottom equipped with successively
First hydraulic selector, the first sand screen, the first balanced valve are adopted tubing string for described second point and are from top to bottom opened successively equipped with the second hydraulic pressure
Pass, the second sand screen 38 and the second balanced valve, wherein adopt tubing string 16 for first point and form first layer position liquid-supplying system, second point is adopted
Tubing string forms second layer position liquid-supplying system：Multiple layers of position liquid-supplying system are set according to oil reservoir quantity, realize multiple oil reservoir layers position
It exploits respectively；When carrying out oil pumping process, due to being that a check valve is pumped without influencing at sealed steel ball 9；When needing to carry out
When well-flushing process, flow string and lower section fuel feeding tubing string are separated due to self-styled, washed toward the injection of casing annulus region at well head
Well liquid is suppressed, and flushing fluid enters pump tail pipe space by well-flushing inlet opening 14, the first ball-and-seat 8, then is cleaned to oil well pump 5
Pollutant is washed out；When needing commutation operation, since fluid pressure is bigger, ball seat 10 is made to move down, and commutation channel is made to beat
It opens, to make commutation work be smoothed out；When needing well repairing and pump checking, rotation tubing string makes 7 downlink of flushing valve lower contact, makes draining
Channel open and it is free from environmental pollution.
The fluffing of moulding sand formula safety joint 54 is from top to bottom equipped with fluffing of moulding sand formula safety joint top connection 17, safe shear pin successively
19, ring 20, the first sealing piston 21 and fluffing of moulding sand formula safety joint lower contact 18 are cut, wherein fluffing of moulding sand formula safety joint lower contact 18
It is connect with the second packer 2, fluffing of moulding sand formula safety joint top connection 17 is connect with the lower section oil pipe that first point is adopted tubing string 16；Work as needs
When workover treatment, the upper connecting tube column of fluffing of moulding sand formula safety joint 54 can cut safe shear pin 19, since a whole set of tubing string is classification
Design, therefore be that can disposably salvage successfully under normal circumstances, it is certain due to being designed with when low layer resistance is excessive
Hit away from, can hit up and down makes inside sand inflows tubing string as much as possible, so that pipe can smoothly take out, when resistance is big again,
Tubing string can be rotated forward, top is taken out, plays the role of one really completely.
First hydraulic selector is identical as the second hydraulic selector structure, and the second hydraulic selector includes hydraulic selector top connection
22, check pin 23, the second sealing piston 24, hydraulic selector central tube 27, commutation assembly, first pressure restore spring 35,
The upper end of seal cylinder sleeve 36 and hydraulic selector lower contact 37, the hydraulic selector central tube 27 and seal cylinder sleeve 36 is connected with hydraulic pressure
Top connection 22 is switched, hydraulic selector top connection 22 is connect with top tubing string, under hydraulic selector central tube 27 and seal cylinder sleeve 36
End is connected with hydraulic selector lower contact 37, and hydraulic selector lower contact 37 is equipped with liquid pass hole, hydraulic selector lower contact 37 and lower section
Tubing string connects, and the top of hydraulic selector central tube 27 is equipped with inlet opening, the feed liquor pore pressure that liquid passes through hydraulic selector central tube 27
Commutation assembly between contracting hydraulic selector central tube 27 and seal cylinder sleeve 36, commutation assembly include the second sealing piston 24,
Opened by pressure spring 25, check valve 26, single stream slipway 30, zero spring 28, spring base 29, single stream slipway pressure-bearing set 31,
Track pin 33, change 32, change pressure cap 34, change pressure cap 34 is interior to be equipped with change 32, and track pin 33 is housed in change 32, and
On the outer wall of hydraulic selector central tube 27 be equipped with milling depth be 2-3mm track c, liquid by the second sealing piston 24,
Check valve 26 applies pressure to single stream slipway 30, single stream slipway pressure-bearing set 31, change pressure cap 34, is existed by track pin 33
The rotation commutation of change 32 and the completion of zero program are realized in movement in track c.
First sand screen is identical as the connection structure of the second sand screen 38, and 38 upper and lower ends of the second sand screen are all logical
It crosses opening baffle ring 39 and connector sleeve 40 carries out pipe screw thread and connect with tubing string；Sand screen only uses in the tubing string for needing sand control.
First balanced valve is identical as the structure of the second balanced valve, and the second balanced valve includes the second balance valve body 46,
Second balance valve body 46 is equipped with the second balanced valve top connection, energy storage piston 48, pressure release piston 50, power piston 49, pressure release
Spring 47, power spring 45 play pressure piston 44, play pressing spring 42, pressure regulating bolt 41, the second balanced valve lower contact 52, connect
Movable plate 51, the second balanced valve lower contact 52 are connect with the top of connecting short section 53, the second balanced valve top connection and connector sleeve 40 and
Center oil pipe connection；The characteristics of balanced valve is not pressure release when forward direction is suppressed, and stopping makes the pressure of entire tubing string be put down when suppressing
Weighing apparatus, operation principle are：It using equilibrium principle, is adjusted with pressure regulating bolt 41, has compressed pressing spring 42, play pressing spring
42 have acted on pressure piston 44, have made the pressure for pressing piston 44 to obtain an initial balanced valve, when forward direction suppresses progress
Commutation（Including the process that is zeroed）When, due to acting to press piston 44 and extraneous pressure and energy storage piston 48 and power piston 49
Collective effect makes double-action plate 51 drive energy storage piston 48（Compress pressure release spring 47）, power piston 49（Compression power spring 45）
It is moved downward with pressure release piston 50, entire design meets Bernoulli equation, to reach the blackout effect of pressure release spring 47, makes
Commutation work smoothly completes；When pressure release, due to the effect of pressure release spring 47 and power spring 45, make 51 uplink of double-action plate, from
And the unlatching of pressure release spring 47 is driven, after pressure release spring 47 is opened, due to playing pressing spring 42, the liquid level in tubing string will
Decline, until dropping to pressure balance, hydraulic selector completes commutation at this time.
First signaling switch is identical as second signal construction of switch, second signal switch letting out positioned at the second balanced valve
Fluid apertures position, second signal switch includes signaling switch ontology 43, is internally provided with weld seam 62, pressure limiting piston 15, sealing pressure regulation
The upper and lower ends of ball seat 63, steel ball 64, level pressure spring 65, sealing rubber ring 66, signaling switch ontology 43 are equipped with direct external connection
Screw thread, connect respectively with top tubing string and lower part tubing string by screw thread；The potential energy stored by level pressure spring 65, will limit
The Opening pressure of pressure piston 15 is limited in scope of design, by the adjusting of pressure regulating bolt 41, obtains should having design pressure,
The integrated design that the tool is completed finally by welding, through well can be gone up after the assay was approved, wherein the project of inspection includes tool
Outer diameter and length, the connection screw thread at both ends, orientation Opening pressure, whole pressure-bearing, liquid pass hole it is penetrating, due to signaling switch
It uses so that it is design value that " commutation " and " zero " of this technique, which has a definite value, the value,.
The bleeder includes bleeder ontology 59, tail pipe 60 and blind plugging 61,59 inside of bleeder ontology from top to bottom according to
Secondary to be equipped with draining ball seat 57, second pressure recovery spring 58, the top of bleeder ontology 59 is connect with the lower part of connecting short section 53,
The characteristics of lower part of bleeder ontology 59 is connect with the top of tail pipe 60, and the lower part of tail pipe 60 is equipped with blind plugging 61, the bleeder be,
When not jettisoninging steel ball to draining ball seat 57, will not pressure release, even if for some reason by draining ball seat 57 and bleeder sheet
The safety nail that body 59 connects is cut, and draining ball seat 57 can also automatically restore to work due to the effect that second pressure restores spring 58
State；When carrying out workover treatment, when separate-layer production string is played well head, suitable steel ball is put into tubing string, makes draining
57 downlink of ball seat makes tubing string pass through the liquid pass hole pressure release on bleeder ontology 59.
The track c includes upper track d, center railway e and lower tracks g, wherein the top dead-centre of upper track d
B is prescribed by shorter and the intervals longer pass point a form；The distal point of center railway e is by the intervals length identical reversal point f group
At only there are one bottom dead centre h, bottom dead centre h and all reversal point f by lower tracks g respectively by orbit connection, and bottom dead centre h is
For program zero position.
It should be noted that when a whole set of tubing string needs commutation or rezero operation, is suppressed into outer tube, pass through each layer of position
The Push And Release of hydraulic selector complete commutation or rezero operation in addition the cooperation of balanced valve and signaling switch；Because just being set before going into the well
Meter has got well program, so every dozen of primary pressures are just changed once to the Push And Release of a corresponding given layer position；When being commutated, suppress
Pressure just makes the positions reversal point f that track pin 33 enters center railway e from upper track d, completes pressure release after commutation, commutation
The spring 28 that is zeroed when operation does not deform upon；When carrying out zero work, the pressure when pressure ratio suppressed commutates is big, suppresses
When certain value, zero spring 28 is compressed, and just makes track pin 33 from upper track d, by center railway e, finally
To at the bottom dead centre h of lower tracks g, entire program is made to return to initial position, it then can pressure release；It should be noted that suppressing
Certain value must disposably be reached in journey, pilot process can not pressure release.
Embodiment 1 is illustrated for two layers with oil reservoir layer position, when oil reservoir layer position is higher than two layers, each layer of technology structure
Make it is identical as first layer, the course of work and so on can.
Claims (8)
1. a kind of program can ground regulation and control layering pumping unit, which is tripping in oil well casing（3）Interior, including the first envelope
Every device（1）With the second packer（2）, it is characterised in that：First packer（1）Epimere be adopt liquid part, the first packer（1）
Hypomere be feed flow part, it includes oil well pump to adopt liquid part（5）With well-flushing valve body（11）, oil well pump（5）Outside is equipped with pump tail
Pipe（4）, well-flushing valve body（11）Inside from top to bottom successively be equipped with flushing valve top connection（6）, the second ball-and-seat（55）, first
Ball-and-seat（8）, well-flushing inlet opening（14）, ball seat（10）, draining set（13）, draining set（13）Inside is connected under flushing valve and connects
Head（7）, pump tail pipe（4）Lower end and flushing valve top connection（6）Connection, flushing valve lower contact（7）Pass through self-packer and oil well
Casing（3）Connection, ball seat（10）It is interior to be equipped with sealed steel ball（9）, ball seat（10）With flushing valve lower contact（7）Between be equipped with reset bullet
Spring（12）；Tubing string is adopted including first point in feed flow part（16）, fluffing of moulding sand formula safety joint（54）, the second packer（2）, second point adopt
Tubing string, connecting short section（53）, bleeder, tail pipe（60）And blind plugging（61）, described first point is adopted tubing string（16）From top to bottom successively
Equipped with the first hydraulic selector, the first sand screen, the first balanced valve, adopts tubing string for described second point and be from top to bottom equipped with the second liquid successively
It compresses switch, the second sand screen（38）And second balanced valve, wherein first point is adopted tubing string（16）First layer position liquid-supplying system is formed,
Second point is adopted tubing string composition second layer position liquid-supplying system；Multiple layers of position liquid-supplying system are set according to oil reservoir quantity, realize multiple oil
The exploitation respectively of position layer by layer.
2. a kind of program according to claim 1 can ground regulation and control layering pumping unit, it is characterised in that：The fluffing of moulding sand
Formula safety joint（54）It is from top to bottom equipped with fluffing of moulding sand formula safety joint top connection successively（17）, safe shear pin（19）, cut ring（20）、
First sealing piston（21）With fluffing of moulding sand formula safety joint lower contact（18）, wherein fluffing of moulding sand formula safety joint lower contact（18）With
Two packers（2）Connection, fluffing of moulding sand formula safety joint top connection（17）Tubing string is adopted with first point（16）The connection of lower section oil pipe.
3. a kind of program according to claim 1 can ground regulation and control layering pumping unit, it is characterised in that：Described first
Hydraulic selector is identical as the second hydraulic selector structure, and the second hydraulic selector includes hydraulic selector top connection（22）, check pin
（23）, the second sealing piston（24）, hydraulic selector central tube（27）, commutation assembly, first pressure restore spring（35）, sealing
Cylinder sleeve（36）With hydraulic selector lower contact（37）, the hydraulic selector central tube（27）And seal cylinder sleeve（36）Upper end be connected with
Hydraulic selector top connection（22）, hydraulic selector top connection（22）It is connect with top tubing string, hydraulic selector central tube（27）And sealing
Cylinder sleeve（36）Lower end be connected with hydraulic selector lower contact（37）, hydraulic selector lower contact（37）It is equipped with liquid pass hole, hydraulic pressure is opened
Close lower contact（37）It is connect with lower section tubing string, hydraulic selector central tube（27）Top be equipped with inlet opening, liquid opened by hydraulic pressure
Close central tube（27）Inlet opening compression hydraulic switching center pipe（27）With seal cylinder sleeve（36）Between commutation assembly, commutation
Assembly includes the second sealing piston（24）, opened by pressure spring（25）, check valve（26）, single stream slipway（30）, zero bullet
Spring（28）, spring base（29）, single stream slipway pressure-bearing set（31）, track pin（33）, change（32）, change pressure cap（34）, turn
Ring pressure cap（34）It is interior that change is housed（32）, change（32）It is upper that track pin is housed（33）, and in hydraulic selector central tube（27）'s
Outer wall is equipped with the track that milling depth is 2-3mm（c）, liquid is by the second sealing piston（24）, check valve（26）To single stream
Slipway（30）, single stream slipway pressure-bearing set（31）, change pressure cap（34）Apply pressure, passes through track pin（33）In track
（c）Change is realized in middle movement（32）Rotation commutation and zero program completion.
4. a kind of program according to claim 1 can ground regulation and control layering pumping unit, it is characterised in that：Described first
Sand screen and the second sand screen（38）Connection structure it is identical, the second sand screen（38）Upper and lower ends are all by the baffle ring that is open
（39）And connector sleeve（40）Pipe screw thread is carried out to connect with tubing string.
5. a kind of program according to claim 1 can ground regulation and control layering pumping unit, it is characterised in that：Described first
Balanced valve is identical as the structure of the second balanced valve, and the second balanced valve includes the second balance valve body（46）, the second balance valve body
（46）It is equipped with the second balanced valve top connection, energy storage piston（48）, pressure release piston（50）, power piston（49）, pressure release spring
（47）, power spring（45）, rise pressure piston（44）, rise pressing spring（42）, pressure regulating bolt（41）, the second balanced valve lower contact
（52）, double-action plate（51）, the second balanced valve lower contact（52）With connecting short section（53）Top connection, the second balanced valve top connection
With connector sleeve（40）It is connected with center oil pipe.
6. a kind of program according to claim 1 can ground regulation and control layering pumping unit, it is characterised in that：Described first
Signaling switch is identical as second signal construction of switch, and second signal switch is positioned at the drainage hole site of the second balanced valve, the second letter
Number switch includes signaling switch ontology（43）, it is internally provided with weld seam（62）, pressure limiting piston（15）, sealing pressure regulation ball seat（63）、
Steel ball（64）, level pressure spring（65）, sealing rubber ring（66）, signaling switch ontology（43）Upper and lower ends be equipped with direct external connection
Screw thread, connect respectively with top tubing string and lower part tubing string by screw thread；Pass through level pressure spring（65）The potential energy of storage, will
Pressure limiting piston（15）Opening pressure be limited in scope of design, pass through pressure regulating bolt（41）Adjusting, obtain to set
Pressure is counted, the integrated design of the tool is completed finally by welding.
7. a kind of program according to claim 1 can ground regulation and control layering pumping unit, it is characterised in that：The draining
Device includes bleeder ontology（59）, tail pipe（60）And blind plugging（61）, bleeder ontology（59）Inside is from top to bottom equipped with and lets out successively
Oily ball seat（57）, second pressure restore spring（58）, bleeder ontology（59）Top and connecting short section（53）Lower part connection,
Bleeder ontology（59）Lower part and tail pipe（60）Top connection, tail pipe（60）Lower part be equipped with blind plugging（61）.
8. a kind of program according to claim 3 can ground regulation and control layering pumping unit, it is characterised in that：The rail
Road（c）Including upper track（d）, center railway（e）And lower tracks（g）, wherein upper track（d）Top dead-centre by shorter
Prescribe（b）With longer pass point（a）Interval composition；Center railway（e）Distal point by the identical reversal point of length（f）Interval
Composition, lower tracks（g）Only there are one bottom dead centres（h）, bottom dead centre（h）With all reversal points（f）Respectively by orbit connection,
Bottom dead centre（h）As program zero position.
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| CN201810232605.1A CN108518208B (en) | 2018-03-21 | 2018-03-21 | Layered oil production device with ground program control function |
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|---|---|---|---|
| CN201810232605.1A CN108518208B (en) | 2018-03-21 | 2018-03-21 | Layered oil production device with ground program control function |
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| CN108518208B (en) | 2021-01-26 |
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Effective date of registration: 20220429 Address after: 257051 east of No. 22, Dongxin oil production plant, east of Xisan Road, Dongying District, Dongying City, Shandong Province Patentee after: Dongying Jinyu Petroleum Machinery Co.,Ltd. Address before: No. 259, Zhaoxi village, Yandian Town, Yanzhou City, Jining City, Shandong Province 272108 Patentee before: Wang Kai |