CN209339924U - Electromagnetic wave heating realizes overcritical hot composite powerful displacement of reservoir oil equipment - Google Patents

Abstract

The utility model discloses a kind of electromagnetic wave heatings to realize overcritical hot composite powerful displacement of reservoir oil equipment, ground installation (10) and overcritical composite powerful injection string (20) including sequentially connected electromagnetic induction strong heating multiphase medium, air and water can be heated to supercriticality using electromagnetic wave by the ground installation (10) of electromagnetic induction strong heating multiphase medium, and overcritical composite powerful injection string (20) contains sequentially connected oil pipe (22), packer (24) and unidirectional automatic gas injection valve (25).The electromagnetic wave heating realizes that overcritical hot composite powerful displacement of reservoir oil device and method are suitable for the air injection oil recovery of all kinds of oil reservoirs.Overcritical hot composite powerful displacement of reservoir oil device and method are realized using the electromagnetic wave heating, effect is more significant, is able to achieve and improves 5 times of -8 times of Flooding Efficiencies on the basis of original air drives, and improves 50% or more oil recovery factor.

Description

Electromagnetic wave heating realizes overcritical hot composite powerful displacement of reservoir oil equipment

Technical field

The utility model relates to exploitation technology fields, and particularly a kind of electromagnetic wave heating realizes that overcritical heat is compound Strength displacement of reservoir oil equipment.

Background technique

Currently, generally use and recovered the oil in a manner of energy transducing source in field of petroleum exploitation, it is this traditional First and second oil production method wastes a large amount of electric power and the crude oil energy.Air-injection displacement is a kind of emerging oil exploitation technology, The a large amount of energy can be saved, cost for oil production is reduced, the speed and recovery ratio of oil recovery is substantially improved, is a kind of environmentally protective wound Novel oil production technology, especially this technology are equally applicable in underground coal gasification(UCG) ignition process.

Worldwide, there is also abnormal low temperature class oil reservoir, such oil reservoir is made in recovery process due to low temperature It is low to obtain production efficiency, normal exploitation means effect is unobvious.Since Insulation is poor in Method In Steam Injection Process, thermal losses pole Greatly, most heat all consumes in injection process, and steam has been converted to high-temperature-hot-water when being moved to oil reservoir from well head, is This, needs constantly to increase steam injection to improve steam quality, causes a large amount of fund and resource consumption.

Utility model content

In order to solve the problems, such as that energy waste is larger in existing Method In Steam Injection Process.The utility model provides a kind of electromagnetism Wave heating realizes overcritical hot composite powerful displacement of reservoir oil equipment, which realizes that overcritical hot composite powerful displacement of reservoir oil equipment is suitable Air injection for all kinds of oil reservoirs recovers the oil, especially viscous crude, super-heavy oil deposit.Realize that overcritical heat is multiple using the electromagnetic wave heating Strength displacement of reservoir oil device and method are closed, effect is more significant, is able to achieve on the basis of original air drives and improves 5 times of -8 times of displacements effects Fruit improves 50% or more oil recovery factor.

The utility model solves that technical application used by its technical problem is novel to be: a kind of electromagnetic wave heating realizes super faces The hot composite powerful displacement of reservoir oil equipment in boundary, ground installation including sequentially connected electromagnetic induction strong heating multiphase medium and overcritical The ground installation of composite powerful injection string, electromagnetic induction strong heating multiphase medium can be added air and water using electromagnetic wave For heat to supercriticality, overcritical composite powerful injection string contains sequentially connected oil pipe, packer and unidirectional automatic gas injection Valve.

The ground installation of electromagnetic induction strong heating multiphase medium contains at least one magnetic conduction steel steel pipe, magnetic conduction steel steel pipe at Helical form, magnetic conduction steel steel pipe are arranged with induction cable outside, which is connected with induction heating power.

The arrival end of magnetic conduction steel steel pipe is connected with water and air supply system and control pressure pump, and the outlet end of magnetic conduction steel steel pipe connects It is connected to export pipeline, flow control valve, thermometric pressure measuring unit and one-way cock, the lower section of magnetic conduction steel steel pipe is equipped with bracket.

The ground installation of electromagnetic induction strong heating multiphase medium contains four magnetic conduction steel steel pipes arranged side by side, magnetic conduction steel The outer diameter of steel pipe is 50mm, and the wall thickness of magnetic conduction steel steel pipe is 10mm, and the length of magnetic conduction steel steel pipe is 100m.

Felt, instlated tubular and heating pipeline are arranged with outside oil pipe, the cracking pressure of unidirectional automatic gas injection valve is 25 megapascal, single Thermally conductive tubing string is connected with to the lower end of automatic gas injection valve.

Packer includes upright positive/negative thread bar, and the screw drive being successively arranged from the top down is contained outside positive/negative thread bar Mechanism, anchor fluke centrum, sealing steel body and sealing element centrum, screw drive can drive positive/negative thread bar rotation, seal steel The upper end edge of body is circumferentially spaced to be equipped with multiple anchor fluke mounting grooves, and it is hinged to pass through anchor fluke pin shaft in each anchor fluke mounting groove Have anchor fluke, seal steel body lower end edge it is circumferentially spaced be equipped with multiple fan blades mounting grooves, it is logical in each fan blades mounting groove It crosses fan blades pin shaft and is hinged with metal sealing fan blades, anchor fluke centrum and sealing element centrum are threadedly coupled with positive/negative thread bar, anchor fluke The rotation direction of the internal screw thread of centrum is oppositely oriented with the internal screw thread of sealing element centrum, and sealing steel body is matched with positive/negative thread bar gap It closes.

One end of anchor fluke is articulated in the anchor fluke mounting groove by anchor fluke pin shaft, and the other end of anchor fluke is located at sealing steel The outside of body, and the top of one end positioned at anchor fluke of the other end of anchor fluke, when positive/negative thread bar rotation, anchor fluke centrum can It moves down and anchor fluke is pushed to rotate down using anchor fluke pin shaft as axis；The outer surface for sealing the upper end of steel body is equipped with positive multiform knot The inside of structure, the lower end of anchor fluke centrum is equipped with lower insertion groove, seals the matched lower end for being plugged in anchor fluke centrum in upper end of steel body It is interior, the tapered structure in the outside of the lower end of anchor fluke centrum or spherical structure.

One end of metal sealing fan blades is articulated in the fan blades mounting groove by fan blades pin shaft, metal sealing fan blades it is another One end be located at sealing steel body outside, and the other end of metal sealing fan blades under one end of metal sealing fan blades Side, when positive/negative thread bar rotation, sealing element centrum can move up and push metal sealing fan blades using fan blades pin shaft as axis It is rotated up, adjacent metal sealing fan blades is made to connect to form closed cyclic structure.

The outer surface for sealing the lower end of steel body is equipped with positive multiform structure, and the inside of the upper end of sealing element centrum is equipped with upper insertion Slot seals in the matched upper end for being plugged in sealing element centrum in lower end of steel body, and the outside of the upper end of sealing element centrum is tapered Structure or spherical structure；Structure, screw drive can be sheathed on outside oil and connect with oil pipe screw drive in a ring It is fixed；Anchor fluke is connected with the elastomeric element that anchor fluke can be made to reset；It is fixed with limiting component outside the lower end of positive/negative thread bar, limits Component is located at the lower section of sealing element centrum；Contain the through-hole penetrated through along the vertical direction in positive/negative thread bar.

The beneficial effects of the utility model are: the electromagnetic wave heating realizes overcritical hot composite powerful displacement of reservoir oil device and method Air injection suitable for all kinds of oil reservoirs recovers the oil, especially viscous crude, super-heavy oil deposit.Overcritical heat is realized using the electromagnetic wave heating Composite powerful displacement of reservoir oil device and method, effect is more significant, is able to achieve on the basis of original air drives and improves 5 times of -8 times of displacements effects Fruit improves 50% or more oil recovery factor.

Detailed description of the invention

The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.

Fig. 1 is the schematic diagram that electromagnetic wave heating described in the utility model realizes overcritical hot composite powerful displacement of reservoir oil equipment.

Fig. 2 is the structural schematic diagram of packer described in the utility model.

Fig. 3 is in Fig. 2 along the cross-sectional view in the direction A-A.

Fig. 4 is in Fig. 2 along the cross-sectional view in the direction B-B.

10, the ground installation of electromagnetic induction strong heating multiphase medium；11, flow control valve；12, magnetic conduction steel steel pipe； 13, bracket；14, flow control valve；

20, overcritical composite powerful injection string；21, well head；22, oil pipe；23, pipeline is heated；24, packer；25, single To automatic gas injection valve；26, thermally conductive tubing string；

241, elastomeric element；242, casing；243, screw drive；244, anchor fluke centrum；245, anchor fluke；246, anchor fluke Pin shaft；247, positive/negative thread bar；248, steel body is sealed；249, fan blades pin shaft；2410, metal sealing fan blades；2411, sealing element vertebra Body；2412, limiting component.

Specific embodiment

It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.

A kind of overcritical hot composite powerful displacement of reservoir oil equipment of electromagnetic wave heating realization, including sequentially connected electromagnetic induction strength The ground installation 10 of heat multi-phase medium and overcritical composite powerful injection string 20, electromagnetic induction strong heating multiphase medium Air and water can be heated to supercriticality using electromagnetic wave by ground installation 10, and overcritical composite powerful injection string 20 contains There are sequentially connected oil pipe 22, packer 24 and unidirectional automatic gas injection valve 25, the ground of electromagnetic induction strong heating multiphase medium The outlet end of device 10 is connect with the entrance of oil pipe 22, and the ground installation 10 of electromagnetic induction strong heating multiphase medium generates super Critical air and water, which will enter, is used for the displacement of reservoir oil in oil pipe 22, as shown in Figure 1.

In the present embodiment, the ground installation 10 of electromagnetic induction strong heating multiphase medium contains at least one magnetic conduction steel steel Pipe 12, magnetic conduction steel steel pipe 12 is spiral, is arranged with induction cable outside magnetic conduction steel steel pipe 12, which is connected with induction and adds Thermoelectric generator.The induction cable can generate the magnetic field of alternation after powered up, be heated magnetic conduction steel steel pipe 12 under electromagnetic induction, To which the water and air in magnetic conduction steel steel pipe 12 is heated to supercriticality.

In the present embodiment, the air injection well on ground is arranged in the ground installation 10 of electromagnetic induction strong heating multiphase medium Well head 21 near, the arrival end of magnetic conduction steel steel pipe 12 be connected with water and air supply system, control pressure pump and injection pipeline, stream Adjustable valve door 11, the outlet end of magnetic conduction steel steel pipe 12 be connected with export pipeline, flow control valve 14, thermometric pressure measuring unit and The lower section of one-way cock, magnetic conduction steel steel pipe 12 is equipped with bracket 13, which connect with the arrival end of oil pipe 22.

It is preferred that the ground installation 10 of electromagnetic induction strong heating multiphase medium contains four magnetic conduction steel steel pipes arranged side by side 12, the outer diameter of magnetic conduction steel steel pipe 12 is 50mm, and the wall thickness of magnetic conduction steel steel pipe 12 is 10mm, and magnetic conduction steel steel pipe 12 is spiral wound Structure, the length after magnetic conduction steel steel pipe 12 coils is 10m, and the length after magnetic conduction steel steel pipe 12 elongates is 100m.

In the present embodiment, the induction cable being arranged outside magnetic conduction steel steel pipe 12 is air-cooled silver-colored aluminium induction cable, cable connection It is powered to integrative temp.-controlled type intermediate frequency/high-frequency induction heating power (two o'clock temperature control, have the function of process).

The power of the ground installation 10 of electromagnetic induction strong heating multiphase medium is 800 kilowatts (according to standard pressure 0.101MPa/0 DEG C, according to 30000m3/ days=1250m3/h=1616.25kg/h of flow；20MPa air specific heat according to 1600J/kg*℃；The power that air absorbs: P=Q/t=Cm (T2-T1)/t=1600X1616.25X600/3600= 431000w=431kW.Therefore equipment selects power configuration 800KW), it is 35 megapascal that maximum, which bears pressure, is supplied by water system 60 DEG C or more, the high temperature and pressure hot water within 20 megapascal carry out heating water vapour processed, can produce 50 tons of water equivalent 380-450 daily DEG C high-temperature water vapor, can also by air injection system supply air, 30000 mark side's 20MPa compressed airs can be heated daily extremely 400 DEG C, sufficient heat has been provided and carries out the combination flooding displacement of reservoir oil of air injection heat chemistry.

Using integrative temp.-controlled type intermediate frequency induction heating power supply (two o'clock temperature control, have the function of process).Power supply is with touching Touch screen.High reliability multifunctional touch screen has temperature/power/current curve Real time displaying；Complete air-cooled scheme, air-cooled power supply+ Air-cooled inductor, system are not required to use water.The problem of no water line block and winter water freezing damage equipment；It is automatic temperature-controlled: to can be used Thermocouple contact temperature-measuring is shown automatic temperature-controlled；The air-cooled silver-colored aluminium induction cable of import: using German import aerdentalloy cable. Without water flowing, 500 DEG C of cable heatproof, weight only has the 1/2 of common common cable, and service life had highest up to 10 years Electrical efficiency and reliability；Have energy control function, temperature control method: the real-time temperature collection signal of equipment, according to thermal self-restraint stress Carry out temperature control and heat preservation；30%-50% is reduced than traditional electric heater unit electric quantity consumption, heating temperature is high, heating speed is fast, can Movable type design adapts to more practical conditions, can heat water and air simultaneously, can also individually heat, it is made to be applicable in model Enclose more extensive, and corollary equipment is few, reduces cost.

In the present embodiment, felt, instlated tubular and heating pipeline 23 are arranged with outside oil pipe 22 for protecting and heat-insulated, unidirectionally The cracking pressure of automatic gas injection valve 25 is 25 megapascal, and unidirectional automatic gas injection valve 25 is normally off, when supercritical state in oil pipe 22 When the pressure of state air and water is more than 25 megapascal, unidirectional automatic gas injection valve 25 will be automatically converted to open state, thus to oil reservoir Interior gas injection.The lower end of unidirectional automatic gas injection valve 25 is connected with thermally conductive tubing string 26, and thermally conductive tubing string 26 can be the heat transfer of generation To oil reservoir, thermal loss is reduced；The structure of thermally conductive tubing string 26 is plain tubing, and material is selected as the good metal of heat-conducting effect.

A kind of overcritical hot composite powerful flooding method of electromagnetic wave heating realization is described below, the electromagnetic wave heating is realized Overcritical hot composite powerful flooding method uses above-mentioned electromagnetic wave heating and realizes overcritical hot composite powerful displacement of reservoir oil equipment, institute State electromagnetic wave heating realize overcritical hot composite powerful flooding method the following steps are included:

Step 1, the overcritical composite powerful injection string 20 of 21 tripping in of well head from gas injection well, as shown in Figure 1；

Step 2, the ground installation 10 for opening electromagnetic induction strong heating multiphase medium, are injected by overcritical composite powerful Tubing string 20 injects supercritical air and water to oil reservoir.

In step 1, packer 24 is installed above the oil reservoir overlying rock at 2 meters -5 meters, keeps oil pipe space and casing empty Between separate.

On ground using electromagnetic wave strong heating device heating air and water, the air themperature for injecting oil reservoir is made to reach 400 DEG C -500 DEG C, steam temperature be greater than 385 DEG C, pressure is greater than 25,000,000 in gas injection tube column under the control of unidirectional automatic pressure-controlled device Pa, high temperature and pressure air and vapor form overcritical mixed phase multicomponent gas injection oil reservoir in gas injection tube column, and thermal energy is taken Enter into oil reservoir, improve oil reservoir near wellbore zone temperature rapidly to 385 DEG C or more, pressure and reach 22.1MPa or more, establishes super face Boundary's heat chemistry composite powerful drives temperature field state.

Since oxygen in the supercritical state dissolves each other completely with water, so the oxygen in the overcritical mixed phase multicomponent gas of injection Simultaneously Strong oxdiative cracking reaction occurs rapidly for crude oil comprehensive engagement in gas and oil reservoir, generates great amount of carbon dioxide, while discharging greatly Calorimetric energy makes reservoir temperature further be promoted to 450 DEG C -800 DEG C.The temperature and pressure of oil reservoir are quickly conducted forwards, are made anti- The reservoir temperature in forward position is answered to be promoted to 385 DEG C or more, pressure is more than 22.1 megapascal, promotes the oil-reservoir water of reaction front to reach super and faces Boundary's state, crude oil are completely dissolved in supercritical water, are quickly flowed to producing well direction.

The nitrogen in carbon dioxide and injection air that oxidative cracking reaction generates plays supplement stratum energy and improves ground The effect of stressor layer, while carbon dioxide is partially soluble in crude oil, and plays Action of Surfactant, reduces viscosity of crude, enhancing Crude oil fluidity further promotes crude oil mobile to producing well direction and quickly produces.

Electromagnetic wave heating realize the overcritical heat chemistry composite powerful technology of reservoir sweep of oil reservoir compared to normal air drive method recover the oil and Traditional oil production method can be improved 5 times -15 times of rate of oil production, recovery ratio 30%-60% can be improved, can reduce cost for oil production 50% More than, the tremendous contribution with good economic value, technological value and petroleum industry.

The electromagnetic wave heating realizes that overcritical hot composite powerful displacement of reservoir oil device and method can recover the oil in original air injection method 5 times of -8 times of oil reservoir drive efficiencies can be improved on the basis of technology.Greatly variation occurs for the polarity of water in the supercritical state, close Degree, dielectric constant, viscosity, diffusion coefficient, thermal conductivity and dissolubility are all different from light water, and water at this time only has a small amount of hydrogen bond phase Connection, behavior is close with nonpolar compressed gas, and solvent property is similar to low polar organic matter, therefore faces when water reaches super When boundary's state, hydrocarbon usually has very high solubility, and supercritical water can with oxygen, nitrogen and organic matter with Arbitrary proportion dissolves each other, therefore uses overcritical heat chemistry composite powerful technology of reservoir sweep, the crude oil in oil reservoir can be made to be dissolved completely in super In critical, oil reservoir oil-water interfaces is made to disappear, realize that crude oil quickly flows, passes through injection air and the quick supplement of Strong oxdiative cracking Formation depletion energy, strength drive crude oil extraction.

The packer used in the utility model is described below.

A kind of packer 24, including upright positive/negative thread bar 247, outside direction from the top down, positive/negative thread bar 247 Successively it is arranged with screw drive 243, anchor fluke centrum 244, sealing steel body 248 and sealing element centrum 2411, screw drive machine Structure 243 can drive 247 rotation of positive/negative thread bar, i.e. screw drive 243 can drive positive/negative thread bar 247 with positive and negative spiral shell The center line of rasp bar 247 is axis rotation, and the upper end of sealing steel body 248 is circumferentially evenly spaced to be equipped with multiple anchor fluke mounting grooves, Anchor fluke 245 is hinged with by anchor fluke pin shaft 246 in each anchor fluke mounting groove, the lower end for sealing steel body 248 is circumferentially equal Even interval is equipped with multiple fan blades mounting grooves, and it is close to be hinged with metal by fan blades pin shaft 249 in each fan blades mounting groove Fan blades 2410 is sealed, anchor fluke centrum 244 and sealing element centrum 2411 are threadedly coupled with positive/negative thread bar 247, anchor fluke centrum 244 The rotation direction of internal screw thread is oppositely oriented with the internal screw thread of sealing element centrum 2411, sealing steel body 248 and 247 gap of positive/negative thread bar Cooperation, as shown in Figure 2.

Anchor fluke centrum 244, sealing steel body 248 and sealing element centrum 2411 are cylindrical in shape structure, anchor fluke centrum 244 and sealing Part centrum 2411 can cannot only rotate relative to the movement of sealing steel body 248 relative to sealing steel body 248.Fan blades pin shaft 249 Center line and the center line of anchor fluke pin shaft 246 be each perpendicular to the center line of positive/negative thread bar 247, positive/negative thread bar 247 it is upper Portion and lower part are equipped with external screw thread, the rotation direction of the upper external thread of positive/negative thread bar 247 and lower external thread it is oppositely oriented.When When positive/negative thread 247 rotation counterclockwise of bar, anchor fluke centrum 244 moves towards with sealing element centrum 2411, i.e., anchor fluke centrum 244 to Lower movement, sealing element centrum 2411 move up；When positive/negative thread 247 rotation clockwise of bar, anchor fluke centrum 244 and sealing element Centrum 2411 moves backward, i.e., anchor fluke centrum 244 moves up, sealing element centrum 2411 moves down.

In the present embodiment, one end of anchor fluke 245 is articulated in the anchor fluke mounting groove by anchor fluke pin shaft 246, anchor fluke The outside for being located at sealing steel body 248 of 245 other end, and one end positioned at anchor fluke 245 of the other end of anchor fluke 245 is upper Side, anchor fluke 245 are obliquely installed always.When positive/negative thread 247 rotation of bar, anchor fluke centrum 244 can move down and push anchor Pawl 245 is rotated down with anchor fluke pin shaft 246 for axis, so that anchor fluke 245 be made to be in softened state, fixes the packer 24 to play Effect, as shown in Figures 2 and 3.

In the present embodiment, it cannot be revolved with positive/negative thread bar 247 to move up and down anchor fluke centrum 244 only can Turn, the outer surface for sealing the upper end of steel body 248 is equipped with positive multiform structure, and the inside of the lower end of anchor fluke centrum 244 is equipped with positive multiform Lower insertion groove, seal steel body 248 the matched lower end for being plugged in anchor fluke centrum 244 in upper end in, as shown in Figure 2.Anchor fluke vertebra The outside of the tapered structure in the outside of the lower end of body 244 or spherical structure, the lower end of anchor fluke centrum 244 can be equipped with and the anchor The corresponding lower protrusion of pawl mounting groove.

In the present embodiment, one end of metal sealing fan blades 2410 is articulated with the fan blades installation by fan blades pin shaft 249 In slot, the outside for being located at sealing steel body 248 of the other end of metal sealing fan blades 2410, and metal sealing fan blades 2410 is another The lower section of the one end positioned at metal sealing fan blades 2410 at end, metal sealing fan blades 2410 are obliquely installed always.Work as positive/negative thread When 247 rotation of bar, sealing element centrum 2411 can move up and push metal sealing fan blades 2410 with fan blades pin shaft 249 for axis It is rotated up, connects two adjacent metal sealing fan blades 2410 and form closed cyclic structure.As shown in figure 4, golden at this time Belong to sealing 2410 softened state of fan blades, along the circumferential direction of sealing steel body 248, the marginal layer of two adjacent metal sealing fan blades 2410 Folded setting, the cyclic structure that metal sealing fan blades 2410 is formed after strutting will seal between sealing steel body 248 and casing 242 Annular space.

In the present embodiment, can move up and down to make sealing element centrum 2411 only and cannot be with positive/negative thread bar 247 Rotation, the outer surface for sealing the lower end of steel body 248 are equipped with positive multiform structure, and the inside of the upper end of sealing element centrum 2411 is equipped with just The upper insertion groove of multiform, seal steel body 248 the matched upper end for being plugged in sealing element centrum 2411 in lower end in, as shown in Figure 2. The tapered structure in the outside of the upper end of sealing element centrum 2411 or spherical structure, the outside of the upper end of sealing element centrum 2411 are equipped with It is corresponding with the fan blades mounting groove to protrude above portion.

In the present embodiment, structure, screw drive 243 can be sheathed on oil pipe to screw drive 243 in a ring It is connected and fixed outside 22 and with oil pipe 22.Screw drive 243 contains the driving electricity for driving 247 rotation of positive/negative thread bar Machine.For the ease of above mentioning the packer 24 after using, anchor fluke 245 is connected with the elastomeric element 241 that anchor fluke 245 can be made to reset, One end of elastomeric element 241 is connect with anchor fluke 245, and the other end of elastomeric element 241 can be with screw drive 243 or sealing Steel body 248 connects.

In the present embodiment, sealing element centrum 2411 is detached from positive/negative thread bar 247 in order to prevent, positive/negative thread bar 247 Limiting component 2412 is fixed with outside lower end, limiting component 2412 can be located at sealing element centrum for annular, limiting component 2412 2411 lower section.In addition, containing the through-hole penetrated through along the vertical direction, positive/negative thread bar 247 and oil pipe 22 in positive/negative thread bar 247 Clearance fit.

In use, the packer 24 to be sheathed on on ground the lower end of oil pipe 22 first, make screw drive 243 with Oil pipe 22 is fixed, i.e., screw drive 243 cannot be mobile relative to oil pipe 22 or be rotated.At this point, 247 rotation of positive/negative thread bar When, anchor fluke centrum 244, sealing steel body 248 and sealing element centrum 2411 will be with 247 synchronous rotation of positive/negative thread bar, anchor fluke centrums It will not opposite or reverse movement between 244 and sealing element centrum 2411.

The applicable situation of packer 24 described in the utility model is the pre-determined bit of 24 tripping in of packer to casing 242 It postpones, under gravity, the other end of anchor fluke 245 can be in contact with the inner surface of casing 242.By the packer 24 After being lowered into the predetermined position in casing 242, the other end of anchor fluke 245 is in contact with the inner surface of casing 242, and screw rod drives at this time Motivation structure 243 drives the rotation counterclockwise of positive/negative thread bar 247, the resistance between the other end of anchor fluke 245 and the inner surface of casing 242 Power will hinder anchor fluke 245 and sealing 248 rotation of steel body, i.e. sealing steel body 248 cannot be with 243 rotation of screw drive, then anchor Pawl centrum 244 will move down and anchor fluke 245 is pushed to rotate down with anchor fluke pin shaft 246 for axis, and anchor fluke 245 will be further increased Anchor force, sealing element centrum 2411 move up and push metal sealing fan blades 2410 with fan blades pin shaft 249 be axial direction on turn It is dynamic, to realize anchoring and sealing, as shown in Figure 2.

Terminate where applicable, screw drive 243 drives the rotation clockwise of positive/negative thread bar 247, and anchor fluke centrum 244 will be to Upper movement, sealing element centrum 2411 move down, and release anchoring and sealing state, then can be by the packer 24 with oil pipe 22 It above mentions to ground.

The above, only specific embodiment of the utility model cannot limit the range that utility model is implemented, institute with it With the displacement of its equivalent assemblies, or according to equivalent variations made by the utility model patent protection scope and modification, should all still fall within The scope that this patent is covered.In addition, between technical characteristic and technical characteristic in the utility model, technical characteristic and technical application Between novel, technical application it is novel it is novel with technical application between use can be freely combined.

Claims (9)

1. a kind of electromagnetic wave heating realizes overcritical hot composite powerful displacement of reservoir oil equipment, which is characterized in that the electromagnetic wave heating is realized Overcritical hot composite powerful displacement of reservoir oil equipment includes the ground installation (10) of sequentially connected electromagnetic induction strong heating multiphase medium Electricity can be utilized with the ground installation (10) of overcritical composite powerful injection string (20), electromagnetic induction strong heating multiphase medium Air and water are heated to supercriticality by magnetic wave, and overcritical composite powerful injection string (20) contains sequentially connected oil pipe (22), packer (24) and unidirectional automatic gas injection valve (25).

2. electromagnetic wave heating according to claim 1 realizes overcritical hot composite powerful displacement of reservoir oil equipment, which is characterized in that electricity The ground installation (10) of magnetic induction strong heating multiphase medium contains at least one magnetic conduction steel steel pipe (12), magnetic conduction steel steel pipe (12) It is spiral, it is arranged with induction cable outside magnetic conduction steel steel pipe (12), which is connected with induction heating power.

3. electromagnetic wave heating according to claim 2 realizes overcritical hot composite powerful displacement of reservoir oil equipment, which is characterized in that lead The arrival end of magnet steel steel pipe (12) is connected with water and air supply system and control pressure pump, the outlet end connection of magnetic conduction steel steel pipe (12) There are export pipeline, flow control valve (14), thermometric pressure measuring unit and one-way cock, the lower section of magnetic conduction steel steel pipe (12) is equipped with branch Frame (13).

4. electromagnetic wave heating according to claim 2 realizes overcritical hot composite powerful displacement of reservoir oil equipment, which is characterized in that electricity The ground installation (10) of magnetic induction strong heating multiphase medium contains four magnetic conduction steel steel pipes (12) arranged side by side, magnetic conduction steel steel The outer diameter for managing (12) is 50mm, and the wall thickness of magnetic conduction steel steel pipe (12) is 10mm, and the length of magnetic conduction steel steel pipe (12) is 100m.

5. electromagnetic wave heating according to claim 1 realizes overcritical hot composite powerful displacement of reservoir oil equipment, which is characterized in that oil Felt, instlated tubular and heating pipeline (23) are arranged with outside pipe (22), the cracking pressure of unidirectional automatic gas injection valve (25) is 25 megapascal, The lower end of unidirectional automatic gas injection valve (25) is connected with thermally conductive tubing string (26).

6. electromagnetic wave heating according to claim 1 realizes overcritical hot composite powerful displacement of reservoir oil equipment, which is characterized in that envelope It include upright positive/negative thread bar (247) every device (24), positive/negative thread bar (247) is outside containing the screw rod being successively arranged from the top down Driving mechanism (243), anchor fluke centrum (244), sealing steel body (248) and sealing element centrum (2411), screw drive (243) Positive/negative thread bar (247) rotation can be driven, the upper end edge for sealing steel body (248) is circumferentially spaced equipped with the installation of multiple anchor flukes Slot is hinged with anchor fluke (245) in each anchor fluke mounting groove by anchor fluke pin shaft (246), and the lower end of steel body (248) is sealed Circumferentially spaced is equipped with multiple fan blades mounting grooves, is hinged with by fan blades pin shaft (249) in each fan blades mounting groove Metal sealing fan blades (2410), anchor fluke centrum (244) and sealing element centrum (2411) connect with positive/negative thread bar (247) screw thread It connects, the rotation direction and oppositely oriented, the sealing steel body of the internal screw thread of sealing element centrum (2411) of the internal screw thread of anchor fluke centrum (244) (248) with positive/negative thread bar (247) clearance fit.

7. electromagnetic wave heating according to claim 6 realizes overcritical hot composite powerful displacement of reservoir oil equipment, which is characterized in that anchor One end of pawl (245) is articulated in the anchor fluke mounting groove by anchor fluke pin shaft (246), and the other end of anchor fluke (245) is located at The outside of steel body (248), and the top of one end positioned at anchor fluke (245) of the other end of anchor fluke (245) are sealed, positive/negative thread is worked as When bar (247) rotation, anchor fluke centrum (244) can move down and push anchor fluke (245) with anchor fluke pin shaft (246) under axial direction Rotation；The outer surface for sealing the upper end of steel body (248) is equipped with positive multiform structure, and the inside of the lower end of anchor fluke centrum (244) is equipped with Lower insertion groove, seal steel body (248) the matched lower end for being plugged in anchor fluke centrum (244) in upper end in, anchor fluke centrum (244) The tapered structure in the outside of lower end or spherical structure.

8. electromagnetic wave heating according to claim 6 realizes overcritical hot composite powerful displacement of reservoir oil equipment, which is characterized in that gold The one end for belonging to sealing fan blades (2410) is articulated in the fan blades mounting groove by fan blades pin shaft (249), metal sealing fan blades (2410) the other end be located at sealing steel body (248) outside, and the other end of metal sealing fan blades (2410) be located at gold Belong to the lower section of one end of sealing fan blades (2410), when positive/negative thread bar (247) rotation, sealing element centrum (2411) can be upward It moves and metal sealing fan blades (2410) is pushed to be rotated up with fan blades pin shaft (249) for axis, make adjacent metal sealing fan blades (2410) connection forms closed cyclic structure.

9. electromagnetic wave heating according to claim 8 realizes overcritical hot composite powerful displacement of reservoir oil equipment, which is characterized in that close The outer surface for sealing the lower end of steel body (248) is equipped with positive multiform structure, and the inside of the upper end of sealing element centrum (2411) is equipped with upper insert Enter slot, in the matched upper end for being plugged in sealing element centrum (2411) in lower end for sealing steel body (248), sealing element centrum (2411) Upper end the tapered structure in outside or spherical structure；Screw drive (243) structure in a ring, screw drive (243) oil pipe (22) can be sheathed on outside and be connected and fixed with oil pipe (22)；Anchor fluke (245), which is connected with, can make anchor fluke (245) The elastomeric element (241) of reset；Limiting component (2412), limiting component are fixed with outside the lower end of positive/negative thread bar (247) (2412) it is located at the lower section of sealing element centrum (2411)；Contain the through-hole penetrated through along the vertical direction in positive/negative thread bar (247).