CN104481492B - Heat source fracturing process and device based on electromagnetic heating excitation - Google Patents
Heat source fracturing process and device based on electromagnetic heating excitation Download PDFInfo
- Publication number
- CN104481492B CN104481492B CN201410716536.3A CN201410716536A CN104481492B CN 104481492 B CN104481492 B CN 104481492B CN 201410716536 A CN201410716536 A CN 201410716536A CN 104481492 B CN104481492 B CN 104481492B
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- heat source
- electromagnetic heating
- excitation
- gas
- fuel
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000010438 heat treatment Methods 0.000 title claims abstract description 12
- 230000005284 excitation Effects 0.000 title claims abstract description 11
- 239000000446 fuel Substances 0.000 claims abstract description 33
- 239000007769 metal material Substances 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 239000003129 oil well Substances 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- 230000006698 induction Effects 0.000 claims description 7
- 239000003380 propellant Substances 0.000 claims description 7
- 230000001939 inductive effect Effects 0.000 claims description 6
- 239000010941 cobalt Substances 0.000 claims description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 239000007800 oxidant agent Substances 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 8
- 230000037452 priming Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000009825 accumulation Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000004449 solid propellant Substances 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Induction Heating (AREA)
Abstract
The present invention discloses a kind of heat source fracturing process and device based on electromagnetic heating excitation, bulk gas is generated by the heat source of the fuel containing energy under the principle control of electromagnetic heating and excitation well, in the environment of relative closure, it is done work by the accumulation and quick release of gas pressure to surrounding formation, a large amount of cracks are generated in the earth formation, so that stratum, which is transformed, reaches the effect for increasing Oil & Gas Productivity.Compared with prior art, the beneficial effect that the present invention is reached is: heat source fuel containing energy is directly excited by electromagnetic heating, the thermal efficiency is high, and controllability is strong, is easy to form multi-level pressure source；Each base part just with standardization, is readily produced；Simple structure is not related to ignition device, avoids the security risk in traditional multiclass priming system Classification Management and use.
Description
Technical field
The present invention relates to well production increment fields, in particular in oil gas water well operation it is a kind of based on electromagnetic heating excitation
Heat source fracturing process and device.
Background technique
With the progress that oil/gas well produces, oil flow channel blocking is on the rise, and filtrational resistance constantly increases, so as to cause oil
Well production or water injection well water injection rate constantly decline, it is necessary to solve blockage problem using corresponding measure, be burnt and produced by energetic material
The fracturing technique of raw bulk gas is exactly one of efficient breaking block treatment of oil gas water well, commonly referred to as high enegry gas fracturing, and quilt
Referred to as heat chemistry seam technology, propellant yield-increasing technology, multistage pulses load pressure break etc., essence is to utilize the medicine containing energy
The effect for the high temperature and high pressure gas that agent is generated in shaft bottom burning.
Traditional gas generating system is mainly made of firer's component, is usually had excitation apparatus, ignition part, is passed fire portion
Electric energy or mechanical energy are passed through for example various igniting of ignition part by part, main charge (powder column containing energy) and other auxiliaries, excitation apparatus
Head, detonator, primacord ignite and pass fiery component or main charge.
Patent CN93212044X constant temperature gas generator without shell is connected with a kind of lifting bail type core pipe of CN200710143813
High energy gas fracture bomb refers to the powder column with central support tube, starting mix in central tube is ignited by ignition part, thus
Light entire powder column.Such technology is completed by the above priming system component collaboration of two classes, has various problems in linking, or even cause
Accident, also due to the needs of Initiator Safety, it is necessary to which differentiated control increases operation cost and risk.
A kind of oil-gas formation fracturing process with high-energy gas of patent CN931032938 is ignited using cable electrified regulation resistance wire
Solid propellant grain.The priming system that technique is related to only has one (solid propellant), although applying less firer
Product, but it need to be cast with resistance wire with powder column in advance, and the thermal efficiency, Fire Reliability is not as good as the side using special ignition component
Formula.
Electromagnetic heating is widest a kind of heating method in present industrial field and civil equipment, and electromagnetic heater is one
Kind converts electrical energy into the device of thermal energy using electromagnetic induction principle.Electromagnetic controller is by 220V/380V, the exchange of 50/60Hz
The rectified circuit rectifies of electricity become direct current, and direct current is converted into the high frequency height that frequency is 20-40KHz using control circuit
Piezoelectricity, the high-frequency high-voltage current of high speed variation, which flows through coil, can generate the alternating magnetic field of high speed variation, when the alternation magnetic in magnetic field
The line of force can generate countless small vortex when passing through magnetic conductive metal material in metallic object, and making metal material itself, voluntarily high speed is sent out
Heat, to achieve the purpose that heat metal material.
Inventor integrates high enegry gas fracturing present Research, specific in conjunction with down-hole formation based on electromagnetic heating technique
Condition be developed based on the heat source fracturing process and device of electromagnetic heating excitation, the technological controllability is strong, and the thermal efficiency is high, is easy to
Multi-form pressure source is formed, just with standardization, is readily produced, it is safer, reliable.
Summary of the invention
To solve the problems of the prior art, the present invention provides the heat source fracturing process and dress excited based on electromagnetic heating
It sets.
The technical scheme is that surface em controller by high-frequency high-voltage current by cable transfer to underground, by
Magnetic induction loop is converted into alternating magnetic field, and heat source fuel surface or internal magnetic conductive metal material are sent out rapidly in alternating magnetic field
Heat, and directly cause fuel and burn rapidly, bulk gas is generated, causes the down-hole pressure of relative closure sharply to increase, works as pressure
It does work when more than formation fracture pressure to surrounding formation, generates a large amount of cracks in the earth formation, so that stratum, which is transformed, reaches increase oil
The purpose of gas well deliverability, technique is by three subsurface environment of relative closure, EM induction system, heat source fuel module parts
Composition.
The heat source fuel module, predominantly propellant, propellant powder or other energetic materials containing oxidant, key exist
In heat source fuel module inside or surface, there are magnetic conductive metal (iron, cobalt, nickel) materials, pass through control magnetic conductive metal material
Quantity, shape, position, to control speed and quantity that heat source generates gas.
The heat source fuel module, can be packaged into specific shape, be used together by cable string.
The EM induction system is mainly made of surface em controller, oil well cable and magnetic induction loop component.
The environment of the relative closure, be by well liquid, plug, the common trap of the borehole wall at space.
Compared with prior art, the beneficial effect that the present invention is reached is: 1, simple structure, no priming system ignition part,
Avoid the security risk in traditional multiclass priming system management and use.2, heat source fuel is directly excited by electromagnetism, the thermal efficiency is high, can
Control property is strong, is easy to form multi-form pressure source.3, each base part is readily produced just with standardization.
Detailed description of the invention
Fig. 1 is one embodiment of the invention operation schematic diagram.
Fig. 2 is the partial enlarged view of one embodiment of the invention operation schematic diagram.
Fig. 3 is the heat source fuel cross-sectional view of one embodiment of the invention.
Fig. 4 is the heat source fuel cross-sectional view of the different structure of one embodiment of the invention.
Description of symbols: the borehole wall 1, inductive coil assembly 2, heat source fuel module 3, plug 4, stratum 5, well liquid 6, well
Body 7, oil well cable 8, electromagnetic control system 9, magnetic conductive metal material filler 10, magnetic conductive metal material inner wall 11.
Specific embodiment
The present invention is further elaborated with reference to the accompanying drawing.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, heat source fracture job system of the one embodiment of the present of invention based on electromagnetism excitation
System, the system are made of three subsurface environment of relative closure, EM induction system, heat source fuel module parts.Wherein, by well
Wall 1, plug 4,6 trap of well liquid at space constitute relative closure subsurface environment；By inductive coil assembly 2, oil well cable
8, electromagnetic control system 9 constitutes EM induction system；By containing can fuel, magnetic conductive metal (iron, cobalt, nickel) material filler 10 or
Magnetic conductive metal material inner wall 11 constitutes heat source fuel module 3, and the fuel containing energy can be solid propellant or propellant powder.Specifically
Embodiment is magnetic conductive metal material filler 10 to be added in the fuel containing energy, heat source fuel module 3 is made, led to by oil well cable 8
Cross under inductive coil assembly 2 to underground target zone, simultaneously or after tripping in plug 4, in this way by the borehole wall 1, plug 4, well liquid 6
Trap at space constitute relative closure subsurface environment, with this condition, open surface em control system 9, by high frequency height
Current voltage is transported in underground inductive coil assembly 2 by oil well cable 8, generates the alternating magnetic field of high speed variation, alternating magnetic field
When by magnetic conductive metal material in heat source fuel module 3, since electromagnetic induction generates heat, the directly rapid combustion of initiation fuel
It burns, generates bulk gas, increase pressure in the environment of relative closure sharply, when pressure is more than formation fracture pressure to surrounding
Stratum acting, completes the fracturing reform to stratum 5.
As preferred embodiment, heat source fuel module 3 can also be combustion with propellant powder using solid propellant as fuel
Material or other fuel containing oxidant, key are that there are magnetic conductive metal (iron, cobalt, nickel) for fuel module inside or surface
Material, by controlling quantity, the shape, position of magnetic conductive metal material, to control the speed that heat source fuel module 3 generates gas
Degree and quantity.
As preferred embodiment, more piece heat source fuel module 3 can impaling be assembled in inductive coil assembly 2 and oil well electricity
On cable 8, it is easy to use.
As preferred embodiment, the input amount of plug 4 is determined according to well section situation, can not also be put.Launching heat
Tripping in plug 4 while source fuel module 3, when achieve the goal stratum when, barrier layer is collectively formed in plug 4 and well liquid 6, hinders
Only the quick of high energy gas escapes.When not using plug 4, the pressure shelves for fully relying on well liquid 6 prevent escaping for gas, need
Enough well liquids are provided, concrete condition is determined according to the situation of well.
" one embodiment " for being previously mentioned in this specification, " another embodiment ", " embodiment " etc., referring to combining should
Specific features, structure or the feature of embodiment description are included at least one embodiment generally described herein.?
It is not centainly to refer to the same embodiment that statement of the same race, which occur, in multiple places in specification.Furtherly, in conjunction with any one reality
When applying example and describing a specific features, structure or feature, to be advocated be realized in conjunction with other embodiments this feature,
Structure or feature are also within the scope of the present invention.
Although reference be made herein to invention has been described for multiple explanatory embodiments, however, it is to be understood that the field skill
Art personnel can be designed that a lot of other modification and implementations, these modifications and implementations will fall in original disclosed in the present application
It, can be outside the modification and improvement that carry out of building block to theme combination layout and/or layout, to this then within scope and spirit
For the technical staff of field, other purposes are also apparent.
Claims (1)
1. being fired based on the heat source fracturing process of electromagnetic heating excitation by the subsurface environment of relative closure, EM induction system, heat source
Expect that three parts of module form, it is characterised in that excitation heat source fuel is directly heated by electromagnetism and generates bulk gas rapidly opposite
Stratum is transformed in the environment of closing；Inside the heat source fuel module or surface there are magnetic conductive metal material, iron,
Cobalt, nickel and its alloy, by controlling quantity, the shape, position of magnetic conductive metal material, so that controlling heat source fuel generates gas
Speed and quantity；The heat source fuel is propellant or propellant powder or other fuel containing oxidant；The heat source fuel mould
Block is solid, and single-unit or more piece impaling are assembled on inductive coil assembly (2) and oil well cable (8) and use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410716536.3A CN104481492B (en) | 2014-12-02 | 2014-12-02 | Heat source fracturing process and device based on electromagnetic heating excitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410716536.3A CN104481492B (en) | 2014-12-02 | 2014-12-02 | Heat source fracturing process and device based on electromagnetic heating excitation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104481492A CN104481492A (en) | 2015-04-01 |
| CN104481492B true CN104481492B (en) | 2019-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410716536.3A Active CN104481492B (en) | 2014-12-02 | 2014-12-02 | Heat source fracturing process and device based on electromagnetic heating excitation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104481492B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11808093B2 (en) | 2018-07-17 | 2023-11-07 | DynaEnergetics Europe GmbH | Oriented perforating system |
| USRE50204E1 (en) | 2013-08-26 | 2024-11-12 | DynaEnergetics Europe GmbH | Perforating gun and detonator assembly |
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| CN105986788B (en) * | 2016-06-24 | 2018-09-04 | 中国石油天然气股份有限公司 | Safety control device and method for air-flooding production well and air-flooding injection and production system |
| CN108301817B (en) * | 2018-04-20 | 2023-09-15 | 吉林大学 | Underground fluid heater for unconventional energy source |
| US11255147B2 (en) | 2019-05-14 | 2022-02-22 | DynaEnergetics Europe GmbH | Single use setting tool for actuating a tool in a wellbore |
| US11578549B2 (en) | 2019-05-14 | 2023-02-14 | DynaEnergetics Europe GmbH | Single use setting tool for actuating a tool in a wellbore |
| US10927627B2 (en) | 2019-05-14 | 2021-02-23 | DynaEnergetics Europe GmbH | Single use setting tool for actuating a tool in a wellbore |
| US11204224B2 (en) | 2019-05-29 | 2021-12-21 | DynaEnergetics Europe GmbH | Reverse burn power charge for a wellbore tool |
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| US12000267B2 (en) | 2021-09-24 | 2024-06-04 | DynaEnergetics Europe GmbH | Communication and location system for an autonomous frack system |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2476638Y (en) * | 2001-05-08 | 2002-02-13 | 中国兵器工业第二一三研究所 | Magneto-ignition apparatus |
| RU2298090C1 (en) * | 2006-03-06 | 2007-04-27 | Михаил Григорьевич Падерин | Method and device to apply gas-dynamic action to formation |
| CN201531261U (en) * | 2009-11-11 | 2010-07-21 | 西安通源石油科技股份有限公司 | Deflagration fracturing device used in cased well |
| CN102080527A (en) * | 2010-12-29 | 2011-06-01 | 西安通源石油科技股份有限公司 | Method and device for detonating and fracturing scattered objects |
| CN102337878B (en) * | 2011-10-16 | 2014-10-01 | 北方斯伦贝谢油田技术（西安）有限公司 | Thermal-ignition high-energy gas pulse fracturing device |
| CN102839957B (en) * | 2012-09-06 | 2015-03-25 | 北方斯伦贝谢油田技术（西安）有限公司 | Pulse detonation fracturing device for ultra high-temperature high-pressure well |
-
2014
- 2014-12-02 CN CN201410716536.3A patent/CN104481492B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE50204E1 (en) | 2013-08-26 | 2024-11-12 | DynaEnergetics Europe GmbH | Perforating gun and detonator assembly |
| US11808093B2 (en) | 2018-07-17 | 2023-11-07 | DynaEnergetics Europe GmbH | Oriented perforating system |
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| Publication number | Publication date |
|---|---|
| CN104481492A (en) | 2015-04-01 |
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