CN104929556B - Downhole tubular column lifting device - Google Patents
Downhole tubular column lifting device Download PDFInfo
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- CN104929556B CN104929556B CN201510295999.1A CN201510295999A CN104929556B CN 104929556 B CN104929556 B CN 104929556B CN 201510295999 A CN201510295999 A CN 201510295999A CN 104929556 B CN104929556 B CN 104929556B
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Abstract
The invention provides a downhole tubular column lifting device, comprising: a downhole tubular string lifting device, comprising: the control mechanism, the actuating mechanism, the hollow screw rod, the tray, the supporting mechanism and the short pipe; the control mechanism is fixedly arranged on the tray and connected with the executing mechanism, and the control mechanism is used for driving the executing mechanism to do circular motion; the actuating mechanism is movably connected with the tray and is in threaded connection with the hollow lead screw, the bottom end of the hollow lead screw is connected with the underground pipe column, and the actuating mechanism is used for driving the hollow lead screw to move longitudinally so as to drive the underground pipe column to move longitudinally. The underground pipe column lifting device provided by the invention has the advantages of simple structure, light weight, high automation degree, simple operation, safe and reliable work, energy conservation and environmental protection, can be used for milling the abrasive jet casing section of the oil field without being driven by a drilling machine, and can also be used for casing windowing and slotting operations.
Description
Technical field
The present invention relates to oil field abradant jet casing section milling implement technical field, more particularly to a kind of down-hole string carries
Rise device.
Background technology
The device used during existing sleeve in oil field section milling uses mechanical section milling cutter more, and section milling cutter is driven by drive device
Move and the section milling process that sleeve pipe is completed in cutting is carried out to sleeve pipe, but said apparatus is complicated, and the proportion of goods damageds of part are higher, and
Operating efficiency is relatively low, while easily produces mechanical breakdown and down-hole accident.
Preceding mixing Abradant efflux cutting technology is a kind of high-efficiency jet technology to grow up in the last thirty years, because it can
Cutting material scope is wide, cut surface Glabrous thorn, in the absence of heat affected area the advantages that, produced from one just obtained it is extensive
Concern, this technology has been widely used in the departments such as machinery, aviation, metallurgy, advertising decoration at present.Although in petroleum industry
The operations such as equipment cleaning, downhole perforation, sleeve pipe slot are carried out using this technology, but few people are directed to preceding mixing abradant jet
Technology is studied for casing section milling operation.Mixing abradant jet casing section milling operation needs solve two before successfully carrying out
Key technology, first, developing a section milling injector, it is used to denude sleeve pipe in down-hole all；Carried second, developing down-hole string
Device is risen, it is used for upwards slowly lifting down-hole string and section milling injector.
Business's foundation at present et al. has been developed that two kinds of section millings for being applied to preceding mixing abradant jet casing section milling operation are sprayed
Device, one kind are that " a kind of waterpower adds the milling of sand section and windowing injector, and " patent No. 201420463287.7, another kind are a kind of " sleeve pipes
Abradant jet cuts injector " number of patent application：201510179115.6 developed but without people suitable for preceding mixing abrasive material
The downhole tubular column lifting device of jet casing section milling operation.
Each oil field is used for the fluid pressure type hydraulic slotted liner technique ground hole pipe lift of sleeve pipe hydraulic slotted liner technique operation in the prior art, its
Ground hole pipe lifting is carried out using hydraulic station driving hydraulic cylinder.Because fluid pressure type hydraulic slotted liner technique ground hole pipe lift structure is answered
It is miscellaneous, cost is high, operating pressure is big, fault rate is high, easily produces creeping phenomenon causes to be lifted that speed is unstable, energy consumption is big, uses
Hydraulic oil easily leakage pollution environment, stroke is too small, will cause its weight is too big, carries manufacture to tie up if increasing its impulse stroke
Shield is difficult, so being difficult to current oil field abradant jet casing section milling operation.
The content of the invention
It is an object of the invention to provide a kind of down-hole string available for oil field abradant jet casing section milling operation to lift dress
Put.
To reach above-mentioned purpose, the invention provides a kind of downhole tubular column lifting device, including：Controlling organization, perform machine
Structure, hollow lead screw, pallet, supporting mechanism and short tube；
The controlling organization is fixedly installed on the pallet, and is connected with the executing agency, and the controlling organization is used
Circled in driving the executing agency；
The executing agency is flexibly connected with the pallet, is spirally connected with the hollow lead screw, the upper end of the hollow lead screw
It is connected by movable elbow with high-pressure hose, the bottom of the hollow lead screw is connected with down-hole string, and the executing agency is used for
The hollow lead screw is driven to vertically move, so as to drive the down-hole string to vertically move；
One end of the supporting mechanism is fixedly connected with the hollow lead screw, and the other end is fixedly connected with the short tube, institute
Supporting mechanism is stated to be used to support the hollow lead screw to drive the down-hole string to vertically move；
The upper end of the short tube connects with the lower end of pallet.
Further, the executing agency includes：
Ratchet and ratchet；
The afterbody of the ratchet is connected with the controlling organization, and the head of the ratchet connects with the ratchet of the ratchet,
The centre of the ratchet and the centre of the hollow lead screw are spirally connected, and the ratchet is flexibly connected with the pallet, institute
State controlling organization and the pawl wheel is promoted by the ratchet, so as to drive the hollow lead screw to vertically move, and then drive
The down-hole string vertically moves.
Further, the executing agency also includes：
Cod and journal bearing；
The cod is arranged between the pallet and the ratchet, and the cod is used for supporting the ratchet
Axial movement；
The journal bearing is arranged in the centre bore of the pallet, and the lower end of the ratchet is arranged on the journal bearing
Centre bore in, the journal bearing be used for support the ratchet to move radially.
Further, the executing agency also includes：
Dust cover and circlip；
The dust cover is arranged on outside the cod, and the dust cover is used for dust-proof to cod progress
Protection；
The circlip is arranged in the circlip groove of the ratchet lower end, and the circlip is used to enter the ratchet
Row axial limiting.
Further, the controlling organization includes：
Air pump, magnetic valve, controller, execution cylinder and fixed seat；
The air pump pass sequentially through the magnetic valve and it is described execution cylinder be connected with the ratchet, the controller with it is described
Magnetic valve is connected, and the execution cylinder is fixedly connected with the fixed seat, and the fixed seat is fixedly installed on the pallet, described
Controller is used to periodically send square-wave signal, and the square-wave signal is delivered into the magnetic valve, and the magnetic valve exists
Receive open and close valve after the square-wave signal so that the air pump drives the execution cylinder to do reciprocating linear motion, and then band
The dynamic ratchet promotes the ratchet circumferentially rotated.
Further, the controller includes power circuit, square-wave signal generation circuit, square-wave signal output circuit and outer
Shell；
The power circuit, square-wave signal generation circuit and square-wave signal output circuit are arranged in the shell；
The power circuit provides power supply to the square-wave signal generation circuit and the square-wave signal output circuit；
The square-wave signal generation circuit is used to produce square-wave signal when down-hole string needs lifting, and by the side
Ripple signal is delivered to the square-wave signal output circuit；
The square-wave signal output circuit is used for after the square-wave signal is received, and the square-wave signal is delivered into institute
Magnetic valve is stated, so as to control the magnetic valve open and close valve.
Further, the controlling organization also includes：
Bearing pin, the end of the piston rod for performing cylinder are provided with crotch, and the ratchet passes through the bearing pin and the crotch
Form hinge connection.
Further, the supporting mechanism includes：
Guide rod, guide rail and connecting plate；
The guide rod is vertically arranged with the hollow lead screw, one end of the guide rod and the upper end cylinder of the hollow lead screw
Face is fixedly connected, and the other end of the guide rod is flexibly connected with the guide rail, and the guide rail be arranged in parallel with the hollow lead screw,
One end of the connecting plate is fixedly connected with the guide rail end, and the other end is fixedly connected with the short tube, the hollow lead screw
When vertically moving, the hollow lead screw drives the guide rod to be vertically moved in the guide rail.
Further, described downhole tubular column lifting device, in addition to：
Self-styled rubber and threeway well head；
The threeway well head upper end connects with the short tube, and is arranged on the down-hole string side, the self-styled rubber
It is arranged between the short tube, the threeway well head and the down-hole string three.
A kind of downhole tubular column lifting device provided in the embodiment of the present application, has at least the following technical effects or advantages：
1st, it is circumferentially rotated by controlling organization executing agency, it is further driven to the hollow lead screw and vertically moves,
So as to drive the structure design that the down-hole string vertically moves so that the downhole tubular column lifting device that the embodiment of the present application provides
With it is simple in construction, automaticity is high, be not required to rig driving can carry out oil field abradant jet casing section milling operation, lifting force
Greatly, the characteristics of in light weight, impulse stroke is big, without creeping phenomenon.
2nd, as a result of air pump as power source, simple in construction, in light weight, work gas forces down, can discontinuous operation etc., no
Hydraulic components are needed, easy to manufacture, also there is the characteristics of energy-conserving and environment-protective without using hydraulic oil.
3rd, the lifting of down-hole string is controlled as a result of controller, lifting speed regulation is constructed without stop segment milling to be made
Industry, controller can be remotely from the place of safety of well head, improve work conveniently, safely, flexible performance.
Brief description of the drawings
Fig. 1 is a kind of front view of downhole tubular column lifting device provided in an embodiment of the present invention；
Fig. 2 is the top view of downhole tubular column lifting device shown in Fig. 1；
Fig. 3 is the composition structured flowchart of downhole tubular column lifting device controller shown in Fig. 1；
Fig. 4 is the circuit theory diagrams of downhole tubular column lifting device controller shown in Fig. 1.
Embodiment
Referring to Fig. 1,2, a kind of downhole tubular column lifting device provided in an embodiment of the present invention, including：Controlling organization, perform machine
Structure, hollow lead screw 10, pallet 19, supporting mechanism, short tube 22, self-styled rubber 23 and threeway well head 24.Controlling organization is fixedly installed
It is connected on pallet 19, and with executing agency, controlling organization is used to drive executing agency to circle；Executing agency and pallet
19 are flexibly connected, and are spirally connected with hollow lead screw 10, and the upper end of hollow lead screw 10 is connected by movable elbow 13 with high-pressure hose 15, empty
The bottom of heart screw mandrel 10 is connected with down-hole string 26, and executing agency is used to drive hollow lead screw 10 to vertically move, so as to drive well
Lower tubular column 26 vertically moves；One end of supporting mechanism is fixedly connected with hollow lead screw 10, and the other end is fixedly connected with short tube 22, short
The upper end of pipe 22 is connected with the lower end of pallet 19 using flange arrangement using 6-8 set bolt and nuts, the lower end of short tube 22 and threeway well head 24
Upper end is connected using flange arrangement using 6-8 set bolt and nuts, and supporting mechanism is used to support hollow lead screw 10 to drive down-hole string
26 vertically move.The upper end of threeway well head 24 connects with the lower end of short tube 22, and is arranged on down-hole string side, and self-styled rubber 23 is set
Between short tube 22, threeway well head 24 and the three of down-hole string 26, for being sealed to three.
Wherein, executing agency includes：Ratchet 9, ratchet 11, cod 14, journal bearing 18, dust cover 17 and elasticity gear
Circle 20；The afterbody of ratchet 9 is connected with controlling organization, and the head of ratchet 9 connects with the ratchet of ratchet 11, in the centre bore of ratchet 11
Surface Machining has internal thread, and the cylindrical outer surface of hollow lead screw 10 is machined with external screw thread, and ratchet 11 passes through spiral shell with hollow lead screw 10
Line connects.Ratchet 11 is flexibly connected with pallet 19, and controlling organization promotes ratchet 11 to rotate by ratchet 9, so as to drive air silk
Bar 10 vertically moves, and then drives down-hole string 26 to vertically move.Cod 14 is arranged between pallet 19 and ratchet 11, axle
It is used for supporting ratchet 11 to move axially to bearing 14；Journal bearing 18 is arranged in the centre bore of pallet 19, the lower end of ratchet 11
It is arranged in the centre bore of journal bearing 18, journal bearing 18 is used to support ratchet 11 to move radially.Dust cover 17 is arranged on axle
To the outside of bearing 14, dust cover 17 is used to carry out proofing dust and protecting to cod 14；Circlip 20 is arranged on the lower end of ratchet 11
Circlip groove in, circlip 20 be used for ratchet 11 carry out axial limiting, prevent 11 upward play of ratchet.
Controlling organization includes air pump 4, magnetic valve 3, controller 5, execution cylinder 2, fixed seat 1 and bearing pin 8；The embodiment of the present invention
In air pump 4 can use air compressor.Air pump 4 provides power source and promotes execution cylinder 2 to move back and forth, so as to pawl 9
Move back and forth.Execution cylinder 2 in the embodiment of the present invention can use diaphragm cylinder.The number of execution cylinder 2 in the embodiment of the present invention
Measure as 1-8.When the quantity for performing cylinder 2 is 2-8, resetting time for growing very much is needed because performing cylinder 2, when down-hole string lifting
When the lifting speed that needs it is smaller when, perform cylinder 2 and use the method for synchronization, the lifting speed needed when down-hole string is lifted is larger
When, perform cylinder 2 and use asynchronous system.
Controller 5 in the embodiment of the present invention can be made up of the circuit using 555 time-base integrated circuits as core.Such as figure
Shown in 3, controller includes power circuit, square-wave signal generation circuit, square-wave signal output circuit and shell.The power supply electricity
Road, square-wave signal generation circuit, square-wave signal output circuit can be commonly mounted in a printed circuit board.The shell is used
In the receiving power circuit, square-wave signal generation circuit, square-wave signal output circuit.
The power circuit provides power supply, the square-wave signal to square-wave signal generation circuit and square-wave signal output circuit
Generation circuit is used to produce square-wave signal when down-hole string needs lifting, and the square-wave signal is delivered into the square wave
Signal output apparatus, the square-wave signal output circuit is used for after the square-wave signal is received, and the square-wave signal is defeated
The magnetic valve is delivered to, so as to control the magnetic valve open and close valve.
Wherein, as shown in figure 4, power circuit includes：Plug CT, switch K1, protective tube BX, transformer B, diode D1-
D4, filter capacitor C1, integrated regulator IC1, filter capacitor C2, resistance R1, LED 1；Plug CT upper conduction
Piece is sequentially connected in series switch K1, protective tube BX, transformer B armature winding, plug CT lower conducting strip.B level of transformer
The upper lead-out wire of winding is connected with diode D1 positive poles and D3 negative poles.The lower lead-out wire of transformer B secondary windings and diode D2
Positive pole and the connection of D4 negative poles.Pin 1 and filter capacitor with integrated regulator IC1 after diode D1 negative poles are connected with D2 negative poles
Lead connects with lead on the J-2 of contact on the relay J of C1 positive poles and square-wave signal output circuit contact J-1.Voltage stabilizing integrates
The pin 2 of IC circuit 1 and pin on filter capacitor C2 positive poles, resistance R1 upper lead, square-wave signal generation circuit potentiometer W1,
IC2 pin 8,4 connects.Resistance R1 lower lead is connected with the positive pole of LED 1.Diode D3 positive poles and D4 positive poles,
Filter capacitor C1 negative poles, integrated regulator IC1 pin 3, filter capacitor C2 negative poles, the negative pole of LED 1, circuit
Ground GND connections.The power circuit is used for by 220 volts of alternating currents after decompression, bridge full-wave rectifier, filtering, is all the way square wave
Signal output apparatus is powered, and another way is powered after voltage stabilizing, filtering for square-wave signal generation circuit.The LED 1
The output voltage of pin 2 for integrated regulator IC1 indicates that LED1 lights when IC1 pin 2 has voltage output.
Wherein, square-wave signal generation circuit includes：Time-base integrated circuit IC2, potentiometer W1, resistance R2, potentiometer W2, electricity
Hinder R3, diode D5, electric capacity C3, electric capacity C4；Time-base integrated circuit IC2 pin 4 and 8 connect after with pin on potentiometer W1,
Potentiometer W1 cursor slides, resistance R1 upper pin, filter capacitor C2 positive poles, the integrated regulator IC1 pin 2 of power circuit connect
Connect.Potentiometer W1 lower pin is connected with resistance R2 upper lead.Resistance R2 lower lead and time-base integrated circuit IC2 pin
7th, pin, potentiometer W2 cursor slides, the connection of diode D5 positive poles on potentiometer W2.Pin connects with lead on resistance R3 under potentiometer W2
Connect.Diode D5 negative poles are connected with lead, time-base integrated circuit IC2 pin 2 and 6, electric capacity C3 positive poles under resistance R3.When basis set
The diode D6 positive poles of pin 3 and power output circuit into IC circuit 2 are connected.Electric capacity C3 negative poles and time-base integrated circuit IC2
Pin 1, lead, circuit ground GND connections under electric capacity C4.The square-wave signal generation circuit is used to produce square-wave signal, the party
Ripple signal controls the actuating of relay of square wave signal output apparatus.The potentiometer W1 is used to adjust from time-base integrated circuit IC2
The width of square-wave signal positive pulse that exports of pin 3, potentiometer W2 is used to adjusting defeated from time-base integrated circuit IC2 pin 3
The width of the square-wave signal negative pulse gone out.The width of square-wave signal pulse and the lifting speed of downhole tubular column lifting device are inversely proportional
Relation.
Wherein, square-wave signal output circuit includes：Diode D6, diode D7, relay J, change-over switch K2, resistance
R4, LED 2, resistance R5, LED 3；The when base of diode D6 positive poles and square-wave signal generation circuit
The pin 3 of IC 2 connects.Diode D6 negative poles and diode D7 negative poles, relay J coil on lead be connected.After
Lead and diode D7 positive poles under electrical equipment J coil, circuit GND be connected.Lead and contact J-2 on relay J contact J-1
After the connection of upper lead with the diode D1 negative poles of power circuit, diode D2 negative poles, integrated regulator IC1 pin 1, filtering
Electric capacity C1 positive poles connect.Pin 2, square-wave signal output line A+, the electricity of lead and change-over switch K2 under relay J contact J-1
Hinder R4 upper lead connection.Resistance R4 lower lead is connected with the positive pole of LED 2.Draw under relay J contact J-2
Line is connected with change-over switch K2 pin 3.Change-over switch K2 pin 1 is connected with output line B+, resistance R5 upper lead.Resistance
R5 lower lead is connected with the positive pole of LED 3.The negative pole of LED 2 and square-wave signal output line A-, light
The negative pole of diode (LED) 3, square-wave signal output line B-, circuit GND be connected.Square-wave signal output line A+ and square-wave signal output
Line A- collectively constitute square-wave signal output terminals A+, A-.Square-wave signal output line B+ and the square-wave signal output line B- sides of collectively constituting
Ripple signal output part B+, B-.The square-wave signal output circuit is used to export square-wave signal by controller output end, and then controls
The time opening and closing of magnetic valve processed on request.The LED 2, LED3 are used for square-wave signal output indication, have signal defeated
Lighted when going out.Diode D7 is used to protect time-base integrated circuit IC2 from the self-induced e.m.f of relay to puncture.Change-over switch K2 is used
Synchronization, asynchronous controlling in output square-wave signal.
Referring to Fig. 4, the controller 5 provided in the embodiment of the present invention is specifically：Plug CT specifications are 250 volts/3 amperes, are opened
It is 250 volts/3 amperes to close K1 specifications, and protective tube BX specifications are 250 volts/1 ampere, and transformer B armature windings input voltage is exchange
220 volts/secondary windings output voltage is more than 200 watts for 12.5 volts/rated input power of exchange, and diode D1-D4 specifications are
Maximu reverse operating voltage is more than silicon rectifier diode of the 100 volts/specified positive rectified current more than 10 amperes, diode D5-
D7 model 1N4007, filter capacitor C1, C2 specification are more than 50 volts of alminium electrolytic condenser, electric capacity for 470 microfarads/rated voltage
C3 specifications are the tantalum electrochemical capacitor that 10 microfarads/rated voltage is more than 25 volts, and electric capacity C4 specifications are the porcelain dielectric of 0.01 microfarad
Hold, integrated regulator IC1 model W7812, time-base integrated circuit IC2 model NE555, LED 1 are adopted
With burn red, LED 2 is using glow green, and LED 3 is using the coloured light that turns blue, relay
J specifications are that rated voltage is that 12 volts/pick-up voltage is less than 9 volts and has 1 normally opened contact and a normally-closed contact/contact load
Direct current be more than 12 volts 5 amperes, change-over switch K2 be SP3T switch contact load be more than 12 volts/5 amperes of direct current, resistance
R1-R3 resistances are 1.1 kilohms, and resistance R4 resistances are 1 kilohm, and resistance R5 resistances are 910 ohm, and resistance R1-R5 is used
0.25 watt of metalfilmresistor of power.Potentiometer W1, W2 resistance are the wirewound potential meter of 0.5 watt of 51 kilohms/power.
The operation principle of controller 5 provided in an embodiment of the present invention is as follows：Voltage is that 220 volts of alternating currents are depressured by transformer B
It is Rectified alternating current through the rectification of diode D1-D4 full-wave bridge rectifier circuits for 12.5 volts of alternating currents, filtered electric capacity C1 filtering
Turn into steady through integrated regulator IC1 again compared with galvanic current, part supply square wave signal output apparatus, another part afterwards
After pressure and filter capacitor C2 filtering, 12 volts of galvanic current is exported from IC1 pin 2, now LED2 has electric current to pass through and rubescent
Coloured light, the square-wave signal generation circuit that the supply of this direct current is made up of time-base integrated circuit IC2, by time-base integrated circuit IC2 pin 3
Square-wave signal is exported, the relay J adhesives when pin 3 exports high level, normally opened contact J-1 is closed, now A of the signal from controller
+, A- outputs, while LED2 has electric current by the way that and green light, further, since change-over switch K2 pin 1 and pin 2 connect, signal is simultaneously
Exported from B+, B- end of controller, while LED3 has electric current by the way that and blue light-emitting, relay J is released when pin 3 exports low level
Put, normally opened contact J-1 disconnects, and is now exported without signal from A+, A- of controller, now LED2 does not have electric current by not sending out
Light, although change-over switch K2 pin 1 and pin 2 connect, because there is no voltage on change-over switch K2 pin 2, there is no signal from control yet
B+, B- end output of device processed, now LED3 does not have electric current by not lighting, now controller A+, A- and B+, the side of B- ends output
Ripple signal acts in agreement for synchronizing signal.Now LED2 and LED3 luminous and extinguishings simultaneously.
The working condition of controller is as follows when change-over switch K2 pin 1 and pin 3 connect：Voltage is 220 volts of exchanges by transformer B
Electricity decompression is 12.5 volts of alternating currents, is Rectified alternating current through the rectification of diode D1-D4 full-wave bridge rectifier circuits, filtered electric capacity
Turn into after C1 filtering compared with galvanic current, part supply square wave signal output apparatus, another part is again through the integrated electricity of voltage stabilizing
After road IC1 voltage stabilizings and filter capacitor C2 filtering, 12 volts of galvanic current is exported from IC1 pin 2, now LED2 has electric current to pass through
And electricity occurs for burn red, the square-wave signal being made up of from 12 volts of direct current supply of the output of IC1 pin 2 time-base integrated circuit IC2
Road, square-wave signal is exported by time-base integrated circuit IC2 pin 3, the relay J adhesives when pin 3 exports high level, normally opened contact J-1
Closure, normally-closed contact J-2 disconnect, and now signal exports from A+, A- of controller, while LED2 has electric current by and green light,
Although change-over switch K2 pin 1 and pin 3 connect, because normally-closed contact J-2 has disconnected, the now B without signal from controller
+, B- ends output, now LED3 does not have electric current by not lighting.Relay J releases, normally opened contact J- when pin 3 exports low level
1 disconnects, normally-closed contact J-2 closures, is now exported without signal from A+, A- of controller, now LED2 does not have electric current to pass through not
It is luminous, because change-over switch K2 pin 1 and pin 3 connect, normally-closed contact J-2 closures, so signal is defeated from B+, B- end of controller
Go out, now LED3 has electric current by the way that and blue light-emitting, the square-wave signal step that now controller A+, A- and B+, B- ends export differs
Cause to be referred to as asynchronous signal.Now LED2 and LED3 is alternately luminous.
Air pump 4 is connected by rubber pipeline with magnetic valve 3, and controller 5 is connected by cable with magnetic valve 3, and magnetic valve 3 is logical
The rubber pipeline that length is 15-25 centimetres is crossed to be connected with execution cylinder 2 and be suspended under execution cylinder 2 by the pulling force of the rubber pipeline
Side, magnetic valve 3 are with performing the purpose that cylinder 2 is connected by shorter rubber pipeline：Exhaust resistance shortening execution cylinder 2 is reduced to be vented
Resetting time, the end for performing the piston rod 6 of cylinder 2 are provided with crotch 7, and ratchet 9 forms hinge connection by bearing pin 8 and crotch 7.Gas
Pump 4 and controller 5 are remotely from the place of safety ground of well head, are performed cylinder 2 and are fixedly connected with fixed seat 1, fixed seat 1 is fixed
It is arranged on pallet 19, controller 5 is used to periodically send square-wave signal, and square-wave signal is delivered into magnetic valve 3, electromagnetism
The open and close valve after square-wave signal is received of valve 3 so that air pump 4 drives execution cylinder 2 to do reciprocating linear motion, and then drives spine
Pawl 9 promotes ratchet 11 circumferentially rotated.
Supporting mechanism includes：Guide rod 12, guide rail 16 and connecting plate 21；Guide rod 12 is vertically arranged with hollow lead screw 10, guide rod
12 one end is fixedly connected with the upper end face of cylinder of hollow lead screw 10, and the other end of guide rod 12 is flexibly connected with guide rail 16, guide rod
12 two sections differed by external diameter, which are connected through a screw thread, to be formed.Using pipe wrench can by less one section of external diameter from external diameter it is larger one
Screwed off in section, be easy to the installation and reset of hollow lead screw 10.Installation and reset are meant that：Hollow lead screw 10 is set to be in height most
Low position, even if in 10 threaded one sections of endoporus in ratchet 11 and short tube 22 of hollow lead screw, lifted for down-hole string
Device onsite application is ready.Guide rail 16 be arranged in parallel with hollow lead screw 10, and one end and the end of guide rail 16 of connecting plate 21 are consolidated
Fixed connection, the other end is fixedly connected with short tube 22, and when hollow lead screw 10 vertically moves, hollow lead screw 10 drives guide rod 12 in guide rail
Vertically moved in 16.
A kind of operation principle of downhole tubular column lifting device provided in an embodiment of the present invention is：The control being made up of electronic circuit
Device 5 processed periodically exports square-wave signal, and control magnetic valve 3 acts, and then controls execution cylinder 2 to do reciprocating linear motion, by living
Stopper rod 6, crotch 7, bearing pin 8, ratchet 9 promote the intermittent rotary of ratchet 11.Ratchet 11 is connected with hollow lead screw 10 by trapezoidal thread,
Hollow lead screw 10 is in the presence of the guide rail 16 of guide rod 12, it is impossible to and it is circumferentially rotated, it can only be moved down along own axes direction
It is dynamic.Therefore hollow lead screw 10 vertically moves under the drive of ratchet 11.
A kind of downhole tubular column lifting device provided by the invention, it is the electromechanics one being combined by electronics, pneumatic, mechanical technique
Body makeup is put, and drives executing agency to circle by controlling organization, so that hollow lead screw drives down-hole string longitudinally to move
Dynamic, automaticity is high, and oil field abradant jet casing section milling operation can be carried out by being not required to rig driving.The device can also be used to cover
Pipe windowing, slot operation.
The present invention is further described below by specific embodiment.
Embodiment 1：1 execution cylinder working mode
Oil field abradant jet casing section milling is being carried out using a kind of downhole tubular column lifting device provided in an embodiment of the present invention
During operation：The bottom of down-hole string 26 is connected with injector 25, and magnetic valve 3 uses two-position three way magnetic valve, magnetic valve 3 and controller
5 output terminals A+, A- connections because output end B+, B- is not connected to magnetic valve, moving change-over switch K2 makes its pin 1 and pin 4
Connection, makes output end B+, B- of controller 5 not have signal output, performs cylinder 2 and uses diaphragm cylinder.When controller 5 exports square wave
During signal, LED2 glow greens, magnetic valve 3 is acted, and air pump 4 is connected with performing cylinder 2, is performed cylinder 2 and is promoted the circumferentially side of ratchet 11
To one ratchet of rotation.Because hollow lead screw 10 can not be circumferentially rotated in the presence of guide rod 12 and guide rail 16, so
When ratchet 11 rotates relative to hollow lead screw 10, hollow lead screw 10 is set to move up a segment distance of very little.Because of hollow lead screw
10 couple with down-hole string 26, and down-hole string 26 couples with injector 25 again, and then drive injector 25 to move up.Work as control
When device 5 stops output square-wave signal, LED 2 stops lighting, and magnetic valve 3 resets under reset itself spring effect,
Air pump 4 and the path blockade for performing cylinder 2, perform cylinder 2 and connected with the evacuation port of magnetic valve 3, perform the vent gas of cylinder 2 in reset itself
Resetted under spring effect.So air inlet impulse stroke is carried out with exhaust return stroke circulation, and then makes injector 25 with extremely low
Speed moves up.Now the sand-laden fluid body from ground high-pressure pump is via high-pressure hose 15, high-pressure-movable bend 13, air silk
Centre bore, the down-hole string 26 of bar 10 are sprayed with high speed by injector 25, and comprehensive abrasion sleeve pipe, returning fluid passes through down-hole string
Return on annular space between 26 and sleeve pipe, reclaimed after being discharged by threeway well head 24.The effect of self-styled rubber 23 is to prevent ring
Returned on shape space inside sand-laden fluid body inflow device.Section milling work is completed when distance reaches requirement when the accumulation of injector 25 moves up
Industry.
Embodiment 2：2 perform cylinder synchronous working mode
Oil field abradant jet casing section milling is being carried out using a kind of downhole tubular column lifting device provided in an embodiment of the present invention
During operation：The bottom of down-hole string 26 is connected with injector 25, and air pump 4 uses 1, and magnetic valve 3 uses 2 two-position three way magnetic valves
A and B, perform cylinder and (perform cylinder 2-A using 2 diaphragm cylinders and perform cylinder 2-B).Controller 5 have 2 output terminals As+, A- and B
+, B-, moving the change-over switch K2 of controller 5 makes its 1 pin and the connection of 2 pin, now the 2 of controller 5 output terminals A+, A- and B
+, the synchronous square-wave signal of B- outputs.The output terminals A of controller 5+, A- and magnetic valve 3-A connections, magnetic valve 3-A respectively with gas
Pump 4 is connected with performing cylinder 2-A, when controller 5 output terminals A+, A- output square-wave signals when, magnetic valve 3-A actions, air pump 4 with
Perform cylinder 2-A to connect, perform cylinder 2-A and promote 11 circumferentially rotated ratchets of ratchet.Because hollow lead screw 10 is in guide rod
12 and guide rail 16 in the presence of can not be circumferentially rotated, so when ratchet 11 rotates relative to hollow lead screw 10, make sky
Heart screw mandrel 10 moves up a segment distance of very little.Because hollow lead screw 10 couples with down-hole string 26, down-hole string 26 again with spray
Emitter 25 couples, and then drives injector 25 to move up.When the output terminals A of controller 5+, A- stop output square-wave signal when, electricity
Magnet valve 3-A resets under reset itself spring effect, air pump 4 and the path blockade for performing cylinder 2-A, performs cylinder 2-A and magnetic valve
3-A evacuation ports are connected, and are performed cylinder 2-A vent gas and are resetted under reset itself spring effect.So air inlet impulse stroke and row
The circulation of gas return stroke is carried out, and then injector 25 is moved up with extremely low speed.At the same time, when controller 5 exports
When holding A+, A- output square-wave signal, output end B+, B- of controller 5 also exports square-wave signal, magnetic valve 3-B actions, air pump 4
Connected with performing cylinder 2-B, perform cylinder 2-B and promote 11 circumferentially rotated ratchets of ratchet.Because hollow lead screw 10 is being led
Can not be circumferentially rotated in the presence of bar 12 and guide rail 16, so when ratchet 11 rotates relative to hollow lead screw 10, make
Hollow lead screw 10 moves up a segment distance of very little.Because hollow lead screw 10 couples with down-hole string 26, down-hole string 26 again with
Injector 25 couples, and then drives injector 25 to move up.When output end B+, B- of controller 5 stops output square-wave signal,
Magnetic valve 3-B resets under reset itself spring effect, air pump 4 and the path blockade for performing cylinder 2-B, performs cylinder 2-B and electromagnetism
Valve 3-B evacuation ports are connected, and are performed cylinder 2-B vent gas and are resetted under reset itself spring effect.So air inlet impulse stroke with
It is vented return stroke circulation to carry out, now the sand-laden fluid body from ground high-pressure pump is via high-pressure hose 15, high-pressure-movable bend
13rd, the centre bore of hollow lead screw 10, down-hole string 26 are sprayed with high speed by injector 25, and comprehensive abrasion sleeve pipe, returning fluid leads to
Return on the annular space crossed between down-hole string 26 and sleeve pipe, reclaimed after being discharged by threeway well head 24.The work of self-styled rubber 23
Be prevent annular space on return inside sand-laden fluid body inflow device.When injector 25 accumulation move up it is complete when distance reaches requirement
Into section milling operation.
The action and reset that cylinder 2-A and execution cylinder 2-B are performed in this embodiment act in agreement, now 2 work for only carrying out cylinder 2
It is referred to as the method for synchronization as mode, now the LED3 of the LED2 of glow green and the coloured light that turns blue luminous and extinguishings simultaneously.The method of synchronization
For lifted speed it is slower when use.
Embodiment 3：2 execution cylinder Asynchronous operation modes
Oil field abradant jet casing section milling is being carried out using a kind of downhole tubular column lifting device provided in an embodiment of the present invention
During operation：The bottom of down-hole string 26 is connected with injector 25, and air pump 4 uses 1, and magnetic valve 3 uses 2 two-position three way magnetic valves
A and B, perform cylinder and (perform cylinder 2-A using 2 diaphragm cylinders and perform cylinder 2-B).Controller 5 have 2 output terminals As+, A- and B
+, B-, the change-over switch K2 of controller 51 pin and 3 pin are connected, now the 2 of controller 5 output terminals A+, A- and B+, B- it is defeated
Go out asynchronous square-wave signal.The output terminals A of controller 5+, A- and magnetic valve 3-A connections, magnetic valve 3-A is respectively with air pump 4 with holding
Row cylinder 2-A connect, when controller 5 output terminals A+, A- output square-wave signal when, magnetic valve 3-A action, air pump 4 with perform cylinder
2-A is connected, and is performed cylinder 2-A and is promoted 11 circumferentially rotated ratchets of ratchet.Because hollow lead screw 10 in guide rod 12 and is led
Can not be circumferentially rotated in the presence of rail 16, so when ratchet 11 rotates relative to hollow lead screw 10, make hollow lead screw
10 move up a segment distance of very little.Because hollow lead screw 10 couples with down-hole string 26, down-hole string 26 again with injector 25
Connection, and then drive injector 25 to move up.When the output terminals A of controller 5+, A- stop output square-wave signal when, magnetic valve 3-
A resets under reset itself spring effect, air pump 4 and the path blockade for performing cylinder 2-A, performs cylinder 2-A and magnetic valve 3-A and empties
Mouth is connected, and is performed cylinder 2-A vent gas and is resetted under reset itself spring effect.So air inlet impulse stroke and exhaust reset line
Cheng Xunhuan is carried out, and then injector 25 is moved up with extremely low speed.When the output terminals A of controller 5+, A- stop output side
During ripple signal, output end B+, the B- output square-wave signal of controller 5, now magnetic valve 3-B actions, air pump 4 is with performing cylinder 2-B
Connect, perform cylinder 2-B and promote 11 circumferentially rotated ratchets of ratchet.Because hollow lead screw 10 is in guide rod 12 and guide rail 16
In the presence of can not be circumferentially rotated, so when ratchet 11 rotates relative to hollow lead screw 10, make hollow lead screw 10 to
One segment distance of upper mobile very little.Because hollow lead screw 10 couples with down-hole string 26, down-hole string 26 couples with injector 25 again,
And then injector 25 is driven to move up.Now the sand-laden fluid body from ground high-pressure pump is via high-pressure hose 15, high pressure activity
Elbow 13, the centre bore of hollow lead screw 10, down-hole string 26 are sprayed with high speed by injector 25, comprehensive abrasion sleeve pipe, are returned out
Liquid is reclaimed by being returned on the annular space between down-hole string 26 and sleeve pipe after being discharged by threeway well head 24.Self-styled rubber 23
Effect be prevent annular space on return inside sand-laden fluid body inflow device.Reach requirement when the accumulation of injector 25 moves up distance
When complete section milling operation.
In this embodiment perform cylinder 2-A with perform cylinder 2-B action and reset be out of step, now perform cylinder 2-A and
The working method for performing cylinder 2-B is asynchronous system.Now LED2 and LED3 alternately sends turquoise two color light.Asynchronous system is used to carry
Used when lifting speed is very fast.
It should be noted that：The method of synchronization and asynchronous system can in section milling work progress by move change-over switch K2 with
When switch, such as：The method of synchronization switches to asynchronous system work and switches within 3 minutes method of synchronization work 6 again after working 6 minutes
Minute switches to asynchronous system and worked 3 minutes again -- and circulation is constantly until section milling construction terminates.Such a mode is typically carrying out axle
Used when being sprayed to interval, the rectangular fragment of casing-pipe cutting can be increased substantially a section milling efficiency by axially spaced-apart injection.
A kind of downhole tubular column lifting device provided in the embodiment of the present application, has at least the following technical effects or advantages：
1st, drive execution cylinder to do reciprocating linear motion as a result of air pump, and then ratchet circumferentially side is promoted with pawl
To rotation, structure that the centre of ratchet and the centre of hollow lead screw are spirally connected has that lifting force is big, in light weight, work
The characteristics of stroke is big, without creeping phenomenon.
2nd, the structure that the centre as a result of ratchet and the centre of hollow lead screw are spirally connected, surprisingly loses in equipment
In the case of removing power supply and source of the gas, hollow lead screw, movable elbow, high-pressure hose, down-hole string will not be under self gravitation effects
Surprisingly drop and cause personal injury accident.
3rd, as a result of air pump as power source, simple in construction, in light weight, work gas forces down, can the spy such as discontinuous operation
Point, it is not necessary to hydraulic components, easy to manufacture, it is not necessary to use hydraulic oil energy-conserving and environment-protective.
4th, the lifting of down-hole string is controlled as a result of controller, lifting speed regulation is constructed without stop segment milling to be made
Industry, controller can be remotely from the place of safety of well head, improve the security, convenience and flexibility of work.
5th, because controller is first as timing from cost-effective tantalum electrochemical capacitor, metalfilmresistor, wirewound potential meter
555 ripe time-base integrated circuits of part compounding technique form square-wave signal generation circuit, the structure powered by integrated regulator,
So controller has the characteristics of low low cost, easy to manufacture, fault rate, stable output signal.
6th, because controller is exportable synchronous and asynchronous two kinds of signals, solving prior art needs two kinds to lift speed
Problem, and then a section milling efficiency is greatly improved.
7th, as a result of the structure for performing cylinder promotion ratchet rotation, perform when cylinder promotes ratchet rotation and act obvious, institute
With the easy remote reviewing of lifting device working condition.
It should be noted last that above embodiment is merely illustrative of the technical solution of the present invention and unrestricted,
Although the present invention is described in detail with reference to example, it will be understood by those within the art that, can be to the present invention
Technical scheme modify or equivalent substitution, without departing from the spirit and scope of technical solution of the present invention, it all should cover
Among scope of the presently claimed invention.
Claims (8)
- A kind of 1. downhole tubular column lifting device, it is characterised in that including：Controlling organization, executing agency, hollow lead screw, pallet, supporting mechanism and short tube；The controlling organization is fixedly installed on the pallet, and is connected with the executing agency, and the controlling organization is used for band The executing agency is moved to circle；The executing agency is flexibly connected with the pallet, and the executing agency is spirally connected with the hollow lead screw, the air silk The upper end of bar is connected by movable elbow with high-pressure hose, and the bottom of the hollow lead screw is connected with down-hole string, the execution Mechanism is used to drive the hollow lead screw to vertically move, so as to drive the down-hole string to vertically move；One end of the supporting mechanism is fixedly connected with the hollow lead screw, and the other end is fixedly connected with the short tube, the branch Support mechanism is used to support the hollow lead screw to drive the down-hole string to vertically move；The upper end of the short tube connects with the lower end of pallet；The executing agency includes：Ratchet and ratchet；The afterbody of the ratchet is connected with the controlling organization, and the head of the ratchet connects with the ratchet of the ratchet, described The centre of ratchet and the centre of the hollow lead screw are spirally connected, and the ratchet is flexibly connected with the pallet, the control Mechanism processed promotes the pawl wheel by the ratchet, so as to drive the hollow lead screw to vertically move, and then described in drive Down-hole string vertically moves.
- 2. downhole tubular column lifting device as claimed in claim 1, it is characterised in that the executing agency also includes：Cod and journal bearing；The cod is arranged between the pallet and the ratchet, and the cod is used for supporting the ratchet axial direction It is mobile；The journal bearing is arranged in the centre bore of the pallet, and the lower end of the ratchet is arranged in the journal bearing In heart hole, the journal bearing is used to support the ratchet to move radially.
- 3. downhole tubular column lifting device as claimed in claim 2, it is characterised in that the executing agency also includes：Dust cover and circlip；The dust cover is arranged on outside the cod, and the dust cover is used to carry out dust-proof guarantor to the cod Shield；The circlip is arranged in the circlip groove of the ratchet lower end, and the circlip is used to carry out axle to the ratchet To spacing.
- 4. downhole tubular column lifting device as claimed in claim 1, it is characterised in that the controlling organization includes：Air pump, magnetic valve, controller, execution cylinder and fixed seat；The air pump passes sequentially through the magnetic valve and the execution cylinder is connected with the ratchet, the controller and the electromagnetism Valve is connected, and the execution cylinder is fixedly connected with the fixed seat, and the fixed seat is fixedly installed on the pallet, the control Device is used to periodically send square-wave signal, and the square-wave signal is delivered into the magnetic valve, and the magnetic valve is receiving Open and close valve after to the square-wave signal so that the air pump drives the execution cylinder to do reciprocating linear motion, and then drives institute Stating ratchet promotes the ratchet circumferentially rotated.
- 5. downhole tubular column lifting device as claimed in claim 4, it is characterised in that：The controller includes power circuit, square-wave signal generation circuit, square-wave signal output circuit and shell；The power circuit, square-wave signal generation circuit and square-wave signal output circuit are arranged in the shell；The power circuit provides power supply to the square-wave signal generation circuit and the square-wave signal output circuit；The square-wave signal generation circuit is used to produce square-wave signal when the down-hole string needs lifting, and by the side Ripple signal is delivered to the square-wave signal output circuit；The square-wave signal output circuit is used for after the square-wave signal is received, and the square-wave signal is delivered into the electricity Magnet valve, so as to control the magnetic valve open and close valve.
- 6. downhole tubular column lifting device as claimed in claim 4, it is characterised in that the controlling organization also includes：Bearing pin, the end of the piston rod for performing cylinder are provided with crotch, and the ratchet is formed by the bearing pin and the crotch Hinge connection.
- 7. downhole tubular column lifting device as claimed in claim 1, it is characterised in that the supporting mechanism includes：Guide rod, guide rail and connecting plate；The guide rod is vertically arranged with the hollow lead screw, and one end of the guide rod and the upper end face of cylinder of the hollow lead screw are consolidated Fixed connection, the other end of the guide rod are flexibly connected with the guide rail, and the guide rail be arranged in parallel with the hollow lead screw, described One end of connecting plate is fixedly connected with the guide rail end, and the other end is fixedly connected with the short tube, the hollow lead screw longitudinal direction When mobile, the hollow lead screw drives the guide rod to be vertically moved in the guide rail.
- 8. downhole tubular column lifting device as claimed in claim 1, it is characterised in that also include：Self-styled rubber and threeway well head；The threeway well head upper end connects with the short tube, and is arranged on the down-hole string side, and the self-styled rubber is set Between the short tube, the threeway well head and the down-hole string three.
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| CN201510295999.1A CN104929556B (en) | 2015-06-02 | 2015-06-02 | Downhole tubular column lifting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510295999.1A CN104929556B (en) | 2015-06-02 | 2015-06-02 | Downhole tubular column lifting device |
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| CN104929556B true CN104929556B (en) | 2018-01-02 |
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| CN110395674A (en) * | 2019-08-09 | 2019-11-01 | 浙江日发纺机技术有限公司 | A kind of lifting device |
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| CN101250977A (en) * | 2008-04-09 | 2008-08-27 | 长沙矿山研究院 | Drilling power head of deep sea core sampling drilling machine |
| CN203225475U (en) * | 2013-03-28 | 2013-10-02 | 国家电网公司 | Jacking device |
| CN103470283A (en) * | 2013-08-26 | 2013-12-25 | 焦作欣扬程煤矿设备有限公司 | Novel upright assembling and disassembling device for upright columns of hydraulic support |
| CN203685092U (en) * | 2014-01-22 | 2014-07-02 | 众通（北京）能源技术有限公司 | Continuous milling device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009203009A (en) * | 2008-02-28 | 2009-09-10 | Kyocera Mita Corp | Paper loading device and image forming device mounting the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250977A (en) * | 2008-04-09 | 2008-08-27 | 长沙矿山研究院 | Drilling power head of deep sea core sampling drilling machine |
| CN203225475U (en) * | 2013-03-28 | 2013-10-02 | 国家电网公司 | Jacking device |
| CN103470283A (en) * | 2013-08-26 | 2013-12-25 | 焦作欣扬程煤矿设备有限公司 | Novel upright assembling and disassembling device for upright columns of hydraulic support |
| CN203685092U (en) * | 2014-01-22 | 2014-07-02 | 众通（北京）能源技术有限公司 | Continuous milling device |
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