CN104912530A - Continuous oil pipe underground multi-component thermal fluid generating device and implementing method - Google Patents
Continuous oil pipe underground multi-component thermal fluid generating device and implementing method Download PDFInfo
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- CN104912530A CN104912530A CN201510099636.0A CN201510099636A CN104912530A CN 104912530 A CN104912530 A CN 104912530A CN 201510099636 A CN201510099636 A CN 201510099636A CN 104912530 A CN104912530 A CN 104912530A
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- coiled tubing
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- oil
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- 239000012530 fluid Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000002485 combustion reaction Methods 0.000 claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000000446 fuel Substances 0.000 claims abstract description 31
- 239000003129 oil well Substances 0.000 claims abstract description 25
- 230000005611 electricity Effects 0.000 claims abstract description 5
- 238000002347 injection Methods 0.000 claims description 31
- 239000007924 injection Substances 0.000 claims description 31
- 238000009434 installation Methods 0.000 claims description 19
- 239000010410 layer Substances 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 13
- 238000010304 firing Methods 0.000 claims description 11
- 230000037452 priming Effects 0.000 claims description 11
- 238000013461 design Methods 0.000 claims description 7
- 239000011229 interlayer Substances 0.000 claims description 5
- 239000008400 supply water Substances 0.000 claims description 5
- 238000009529 body temperature measurement Methods 0.000 claims description 3
- 238000012790 confirmation Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 239000003570 air Substances 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 31
- 238000004891 communication Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
- E21B43/243—Combustion in situ
Abstract
The invention relates to a continuous oil pipe underground multi-component thermal fluid generating device and an implementing method. The continuous oil pipe underground multi-component thermal fluid generating device and the implementing method adopt the technical scheme that a multi-passage continuous oil pipe is wound on a continuous oil pipe coiling device, and is connected into an oil well casing through a continuous oil pipe injector arranged on the top of the oil well casing; the bottom of the oil well casing is provided with an underground combustion cavity; a thermistor sensor is arranged inside the underground combustion cavity; an air conveying pipe is arranged inside the multi-passage continuous oil pipe; and a water supply pipe, a fuel conveying pipe, an ignition cable and a thermocouple are arranged inside the air conveying pipe. The continuous oil pipe underground multi-component thermal fluid generating device and the implementing method have the beneficial effects that the defects in the process of injecting multi-component thermal fluid from a wellhead to an oil reservoir are overcome; the multi-passage continuous oil pipe is used for conveying air, fuel, water and electricity to underground positions; the fuel combusts in the oil reservoir position; the generated high-temperature high-pressure multi-component thermal fluid is injected into an oil layer; and the goal of efficient thick oil thermal recovery is achieved.
Description
Technical field
The present invention relates to a kind of underground continuous oil pipe implement, particularly a kind of coiled tubing down-hole multielement hot fluid generating means and implementation method.
Background technology
The widely used coiled tubing in current oil field is all the flexible coil pipe of single channel, the main job execution being used as conveying Single Medium.Multielement hot fluid generator was generation steam, the CO of the development of oil-field thick-oil Simulation on whole pay zones in recent years
2gas, N
2deng the ground installation of high temperature high-pressure mixing fluid, it is primarily of the raw material supplying system-i.e. feedway of water, fuel, air, electricity and generating means-i.e. ignition burning device and water spray temperature regulating device composition of multielement hot fluid.Due to multielement hot fluid generator than at present high pressure (21Mpa) steam heating boiler volume little, lightweight, the high and energy conservation of thermal effect, the features such as the tail gas after burning is together injected into stratum, and environmental protection performance is good.More and more substituting high pressure injection-steam boiler to produce for the heavy crude heat extraction in oil field.But ground multielement hot fluid is injected into the process of oil reservoir from well head, there is following problem:
1 is thermal loss, and oil reservoir is generally below 1000 meters, and the temperature of well head multielement hot fluid is generally at about 300 DEG C, and when being transported to oil reservoir by the oil pipes of more than 1000 meters, temperature is generally at about 240 DEG C, and heat utilization rate is low, and energy loss is large.
2 is high to oil well completion requirement.The heat lost from well head to oil reservoir due to heat transfer multielement hot fluid makes oil pipe and casing temperature raise, casing expandable in pit shaft is extended, if oil well casing is not thermal recovery special cementing completion, well head is by rising 0.4 meter--and 1 meter, therefore ground injecting multielement hot fluid well cementing quality require high, costly, limit the application of the old well of conventional cementing completion.
3 seriously corrodeds that are multielement hot fluids to oil pipe and sleeve pipe.Will accompany note corrosion inhibiter for reducing to the corrosion rate of oil pipe and sleeve pipe in oil well, costly economic benefit is deteriorated.Therefore multielement hot fluid generator in ground is applied less in the Development of Viscous Crude Oil of land.
China Patent Publication No. is: CN 203867489 U, patent name is " a kind of composite continuous oil pipe ", comprise the metal inner lining layer for conveying liquid body medium, and the coat of metal be sheathed on described inner liner lateral wall, wherein, gap between described metal inner lining layer and described coat of metal forms transport layer, cable floor and transfusion catheter is provided with in described transport layer, described transfusion catheter and cable floor are all fixed on the lateral wall of described metal inner lining layer, described cable floor comprises the communication cable be fixed on for signal transmission on described metal inner lining layer, and the power cable be fixed on for electric energy transmitting on described metal inner lining layer, described communication cable, power cable and transfusion catheter are wound on the lateral wall of described metal inner lining layer all in the shape of a spiral, the level cross-sectionn of described communication cable and described power cable is rounded or oval.
By arranging coat of metal and metal inner lining layer, coat of metal protects transfusion catheter and cable floor, thus improves the structural strength of this composite continuous oil pipe.Meanwhile, the composite continuous oil pipe that the present embodiment proposes by arranging transfusion catheter, thus achieves fluid power transmission.The injection of multielement hot fluid cannot be realized in this equipment, the well cementing quality of ground injecting multielement hot fluid require high, costly, limit the application of the old well of conventional cementing completion.
Summary of the invention
Object of the present invention is exactly in view of the foregoing defects the prior art has, a kind of coiled tubing down-hole multielement hot fluid generating means and implementation method are provided, adopt multichannel coiled tubing that air, fuel, power and water are delivered to down-hole respectively, fuel combustion is made in oil reservoir position, produce HTHP multielement hot fluid and inject oil reservoir, reach the object of efficient heavy oil heat production.
Technical scheme: comprise multichannel coiled tubing, coiled tubing injector, coiled tubing coiling pipe bender, thermometric electric control box, priming supply, temperature control intelligent water supply pump, fuel feed pump, air supply compressor, coiled tubing preventer, gas injection well head, oil well casing, heat-resisting annular packer, down-hole combustion chamber, thermistor (temperature) sensor, multichannel coiled tubing is wrapped on coiled tubing coiling pipe bender, multichannel coiled tubing is connected to oil well casing inside by the coiled tubing injector at oil well casing top, and described multichannel coiled tubing connects the priming supply in thermometric electric control box, temperature control intelligent water supply pump, fuel feed pump, air supply compressor, coiled tubing preventer is provided with in coiled tubing injector, coiled tubing injector connects gas injection well head, multichannel coiled tubing is fixed by heat-resisting annular packer in oil well casing inside, the bottom of oil well casing is provided with down-hole combustion chamber, the inside of down-hole combustion chamber is provided with thermistor (temperature) sensor, and the inside of described multichannel coiled tubing is provided with air delivery pipe, and the inside of air delivery pipe is provided with feed pipe, fuel-supply pipe, firing cable, thermocouple.
Above-mentioned down-hole combustion chamber is connected to the end of multichannel coiled tubing.
The inwall of above-mentioned multichannel coiled tubing is provided with metal inner lining layer, and the lateral wall of multichannel coiled tubing is provided with coat of metal.
Above-mentioned down-hole combustion chamber comprises shell, and the top of down-hole combustion chamber is by firing cable tie point ignition source, and the inside of shell is provided with the chamber of hollow, and the inwall of described shell is provided with vacuum heat-insulating layer.
An implementation method for coiled tubing down-hole multielement hot fluid generating means, is characterized in that:
A) equipment is installed: first multichannel coiled tubing is penetrated coiled tubing injector, coiled tubing wellhead blowout preventor and gas injection well head; Successively coiled tubing injector, coiled tubing wellhead blowout preventor and gas injection well head are sling with crane gear, move to the top injecting well head; Again heat-resisting annular packer and down-hole combustion chamber are connected on the lower end of multichannel coiled tubing, with in multichannel coiled tubing lower going-into-well, install gas injection well head, multichannel coiled tubing is clamped by coiled tubing injector, oil reservoir upper design position is arrived under heat-resisting annular packer, make heat-resisting annular space packer set, oil-separating layer is to the oil casing annular space passage on ground, prevent multielement hot fluid from entering the above sleeve pipe of packer, avoid sleeve pipe thermal expansion and be corroded, this completes the installation of underground equipment; Next connects ground installation and underground equipment; Ground raw material is injected sled to be placed near roller of continuous oil pipe, air supply exhaust outlet of compressor raw material being injected sled is connected with the air delivery pipe of multichannel coiled tubing, the outlet of fuel feed pump is connected with fuel-supply pipe, temperature control intelligent water supply delivery side of pump is connected with feed pipe, firing cable is connected with priming supply, thermometric electric control box is connected with temperature control intelligent water supply pump, this completes the installation of ground installation and underground equipment.
B) raw material injects igniting generation multielement hot fluid: the working condition detecting ground installation and underground equipment before raw material injects respectively, after each device parameter of confirmation is normal, first to down-hole air injection 10000m
3, recording equipment running parameter and well head air Injection pressure, then starting fluid supply pump send fuel in fuel-supply pipe, cut-in point ignition source and supply-water pump power supply beat water under high pressure in sparge pipe simultaneously, and the numerical value of recording occurring continuously thermometric electric control box, adjustment temperature control intelligent water supply pump control program, the temperature of down-hole multielement hot fluid is made to remain within the scope of 320 DEG C-280 DEG C, keep injection parameter to design injection rate, just complete a bite well multielement hot fluid and inject construction, through multichannel coiled tubing respectively by air, fuel, electricity, water, temperature measurement signal delivers to oil reservoir position, down-hole, electric ignition makes fuel combustion produce high temperature, temperature control intelligent water supply pump is supplied water by feed pipe and forms steam in the interlayer of down-hole combustion chamber, one is ensure that down-hole combustion chamber is not burnt out by high temperature, two is that the temperature producing high-temperature gas mixture body after regulating down-hole burning is not more than 500 DEG C, protection oil well casing.
The invention has the beneficial effects as follows: the present invention overcomes the deficiency that multielement hot fluid exists to oil reservoir injection process from well head, adopt multichannel coiled tubing that air, fuel, power and water are delivered to down-hole respectively, fuel combustion is made in oil reservoir position, produce HTHP multielement hot fluid and inject oil reservoir, reach the object of efficient heavy oil heat production.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention;
Accompanying drawing 2 is A-A structural representations of the present invention;
Accompanying drawing 3 is structural representations of down-hole combustion chamber;
In upper figure: the supply of multichannel coiled tubing 1, coiled tubing injector 2, coiled tubing coiling pipe bender 3, thermometric electric control box 4, priming supply 5, temperature control intelligent water supply pump 6, fuel feed pump 7, air compressor 8, coiled tubing preventer 9, gas injection well head 10, oil well casing 11, heat-resisting annular packer 12, down-hole combustion chamber 13, thermistor (temperature) sensor 14, feed pipe 15, fuel-supply pipe 16, firing cable 17, thermocouple 18, air delivery pipe 19; Shell 13.1, chamber 13.2, vacuum heat-insulating layer 13.3.
Detailed description of the invention
1-3 by reference to the accompanying drawings, the invention will be further described:
A kind of coiled tubing down-hole multielement hot fluid generating means that the present invention mentions comprises multichannel coiled tubing 1, coiled tubing injector 2, coiled tubing coiling pipe bender 3, thermometric electric control box 4, priming supply 5, temperature control intelligent water supply pump 6, fuel feed pump 7, air supply compressor 8, coiled tubing preventer 9, gas injection well head 10, oil well casing 11, heat-resisting annular packer 12, down-hole combustion chamber 13, thermistor (temperature) sensor 14, multichannel coiled tubing 1 is wrapped on coiled tubing coiling pipe bender 3, it is inner that multichannel coiled tubing 1 is connected to oil well casing 11 by the coiled tubing injector 2 at oil well casing 11 top, and described multichannel coiled tubing 1 connects the priming supply 5 in thermometric electric control box 4, temperature control intelligent water supply pump 6, fuel feed pump 7, air supply compressor 8, coiled tubing preventer 9 is provided with in coiled tubing injector 2, coiled tubing injector 2 connects gas injection well head, multichannel coiled tubing 1 is fixed by heat-resisting annular packer 12 in oil well casing 11 inside, the bottom of oil well casing 11 is provided with down-hole combustion chamber 13, the inside of down-hole combustion chamber 13 is provided with thermistor (temperature) sensor 14, and the inside of described multichannel coiled tubing 1 is provided with air delivery pipe 19, and the inside of air delivery pipe 19 is provided with feed pipe 15, fuel-supply pipe 16, firing cable 17, thermocouple 18.
Wherein, down-hole combustion chamber 13 is connected to the end of multichannel coiled tubing 1, the down-hole combustion chamber 13 of down-hole heat-resistant packer and multielement hot fluid generator, and down-hole combustion chamber 13 can make its work with under multichannel coiled tubing 1 together lower going-into-well.Also under can being connected on the lower end lower going-into-well of other pipe, after first making annular packer work, then under enter multichannel coiled tubing and dock with it.
With reference to accompanying drawing 2, the inwall of multichannel coiled tubing 1 is provided with metal inner lining layer, and the lateral wall of multichannel coiled tubing 1 is provided with coat of metal.
With reference to accompanying drawing 3, down-hole combustion chamber 13 comprises shell 13.1, and the top of down-hole combustion chamber 13 is by firing cable 17 tie point ignition source 5, and the inside of shell 13.1 is provided with the chamber 13.2 of hollow, and the inwall of described shell 13.1 is provided with vacuum heat-insulating layer 13.3.
The implementation method of a kind of coiled tubing down-hole multielement hot fluid generating means that the present invention mentions, comprises the following steps:
A) equipment is installed: first multichannel coiled tubing 1 is penetrated coiled tubing injector 2, coiled tubing wellhead blowout preventor 9 and gas injection well head 10.Successively coiled tubing injector 2, coiled tubing wellhead blowout preventor 9 and gas injection well head 10 are sling with crane gear, move to the top injecting well head.Again heat-resisting annular packer 12 and down-hole combustion chamber 13 are connected on the lower end of multichannel coiled tubing 1, with in multichannel coiled tubing 1 lower going-into-well, install gas injection well head 10, clamp multichannel coiled tubing 1 by coiled tubing injector 2, heat-resisting annular packer is arrived oil reservoir upper design position 12 times.Make heat-resisting annular packer 12 setting, oil-separating layer is to the oil casing annular space passage on ground.Prevent multielement hot fluid from entering the above sleeve pipe of packer, avoid sleeve pipe thermal expansion and be corroded.This completes the installation of underground equipment.Next connects ground installation and underground equipment.Ground raw material is injected sled to be placed near roller of continuous oil pipe, air supply compressor 8 exhaust opening raw material being injected sled is connected with the air delivery pipe 19 of multichannel coiled tubing 1, the outlet of fuel feed pump 7 is connected with fuel-supply pipe 16, the outlet of temperature control intelligent water supply pump 6 is connected with feed pipe 15, firing cable 17 is connected with priming supply 5, thermometric electric control box 4 is connected with temperature control intelligent water supply pump 6, this completes the installation of ground installation and underground equipment.
B) raw material injects igniting generation multielement hot fluid: the working condition detecting ground installation and underground equipment before raw material injects respectively, after each device parameter of confirmation is normal, first to down-hole air injection 10000m
3(mark side), recording equipment running parameter and well head air Injection pressure, then starting fluid supply pump 7 send fuel in fuel-supply pipe 16, cut-in point ignition source 5 and supply-water pump power supply beat water under high pressure in sparge pipe simultaneously, and the numerical value of recording occurring continuously thermometric electric control box 4, adjustment temperature control intelligent water supply pump 6 control program, makes the temperature of down-hole multielement hot fluid remain within the scope of 320 DEG C-280 DEG C.Keep injection parameter to design injection rate, just complete a bite well multielement hot fluid and inject construction, respectively air, fuel, electricity, water, temperature measurement signal are delivered to oil reservoir position, down-hole through multichannel coiled tubing, electric ignition makes fuel combustion produce high temperature, and temperature control intelligent water supply pump is supplied water by feed pipe and forms steam in the interlayer of down-hole combustion chamber; One is ensure that down-hole combustion chamber 13 is not burnt out by high temperature; Two is that the temperature producing high-temperature gas mixture body after regulating down-hole burning is not more than 500 DEG C, protection oil well casing 11.
Operating principle: the air compressor first starting ground installation injects large quantity of air to oil reservoir, make to be full of air with the oil reservoir of near wellbore zone in the sleeve pipe of heat-resistant packer bottom, form good burning situation, restart fuel feed pump, priming supply and temperature control intelligent water supply pump, when the fuel injected when ground arrives down-hole multielement hot fluid combustion chamber, firing cable electric discharge makes fuel combustion produce high temperature, due to the bimetallic tube that combustion chamber is lower boreholes, the water under high pressure that ground temperature control intelligent water supply pump is squeezed into is filled with in interlayer, high temperature in combustion tube directly can not spray to production string, in combustion chamber, heat is absorbed by the water in interlayer, form the HTHP of discharging in steam and combustion chamber, Co
2, N
2, Co, air mixing after be injected into oil reservoir, the thermocouple being positioned at combustion chamber bottom passes to temperature control intelligent water supply pump temperature signal, supply-water pump according to setting multielement hot fluid temperature change output.When multielement hot fluid temperature is higher than setting value, supply-water pump increases output, otherwise reduces output.When the generation speed of down-hole multielement hot fluid is greater than setting value, ground installation surpasses design load according to output and how much calculates minimizing fuel feed, makes current be in dynamic equilibrium duty.Parameter is changed to ground installation input when changing injection rate.
Claims (5)
1. a coiled tubing down-hole multielement hot fluid generating means, is characterized in that: comprise multichannel coiled tubing (1), coiled tubing injector (2), coiled tubing coiling pipe bender (3), thermometric electric control box (4), priming supply (5), temperature control intelligent water supply pump (6), fuel feed pump (7), air supply compressor (8), coiled tubing preventer (9), gas injection well head (10), oil well casing (11), heat-resisting annular packer (12), down-hole combustion chamber (13), thermistor (temperature) sensor (14), multichannel coiled tubing (1) is wrapped on coiled tubing coiling pipe bender (3), it is inner that multichannel coiled tubing (1) is connected to oil well casing (11) by the coiled tubing injector (2) at oil well casing (11) top, and described multichannel coiled tubing (1) connects the priming supply (5) in thermometric electric control box (4), temperature control intelligent water supply pump (6), fuel feed pump (7), air supply compressor (8), coiled tubing preventer (9) is provided with in coiled tubing injector (2), coiled tubing injector (2) connects gas injection well head, oil well casing (11) inside is by the fixing multichannel coiled tubing (1) of heat-resisting annular packer (12), the bottom of oil well casing (11) is provided with down-hole combustion chamber (13), the inside of down-hole combustion chamber (13) is provided with thermistor (temperature) sensor (14), the inside of described multichannel coiled tubing (1) is provided with air delivery pipe (19), and the inside of air delivery pipe (19) is provided with feed pipe (15), fuel-supply pipe (16), firing cable (17), thermocouple (18).
2. a kind of coiled tubing down-hole according to claim 1 multielement hot fluid generating means, is characterized in that: described down-hole combustion chamber (13) is connected to the end of multichannel coiled tubing (1).
3. a kind of coiled tubing down-hole according to claim 1 multielement hot fluid generating means, is characterized in that: the inwall of described multichannel coiled tubing (1) is provided with metal inner lining layer, and the lateral wall of multichannel coiled tubing (1) is provided with coat of metal.
4. a kind of coiled tubing down-hole according to claim 1 multielement hot fluid generating means, it is characterized in that: described down-hole combustion chamber (13) comprises shell (13.1), the top of down-hole combustion chamber (13) is by firing cable (17) tie point ignition source (5), the inside of shell (13.1) is provided with the chamber (13.2) of hollow, and the inwall of described shell (13.1) is provided with vacuum heat-insulating layer (13.3).
5. an implementation method for the coiled tubing down-hole multielement hot fluid generating means according to any one of claim 1-4, is characterized in that, comprise the following steps:
A) equipment is installed: first multichannel coiled tubing (1) is penetrated coiled tubing injector (2), coiled tubing wellhead blowout preventor (9) and gas injection well head (10), successively coiled tubing injector (2), coiled tubing wellhead blowout preventor (9) and gas injection well head (10) are sling with crane gear, move to the top injecting well head, again heat-resisting annular packer (12) and down-hole combustion chamber (13) are connected on the lower end of multichannel coiled tubing (1), with in multichannel coiled tubing (1) lower going-into-well, install gas injection well head (10), multichannel coiled tubing (1) is clamped by coiled tubing injector (2), oil reservoir upper design position is arrived under heat-resisting annular packer (12), make heat-resisting annular packer (12) setting, oil-separating layer is to the oil casing annular space passage on ground, prevent multielement hot fluid from entering the above sleeve pipe of packer, complete the installation of underground equipment, next connects ground installation and underground equipment: ground raw material is injected sled and is placed near roller of continuous oil pipe, air supply compressor (8) exhaust opening raw material being injected sled is connected with the air delivery pipe (19) of multichannel coiled tubing (1), the outlet of fuel feed pump (7) is connected with fuel-supply pipe (16), the outlet of temperature control intelligent water supply pump (6) is connected with feed pipe (15), firing cable (17) is connected with priming supply (5), thermometric electric control box (4) is connected with temperature control intelligent water supply pump (6), this completes the installation of ground installation and underground equipment,
B) raw material injects igniting generation multielement hot fluid: the working condition detecting ground installation and underground equipment before raw material injects respectively, after each device parameter of confirmation is normal, first to down-hole air injection 10000m
3, recording equipment running parameter and well head air Injection pressure, then starting fluid supply pump (7) send fuel in fuel-supply pipe (16), cut-in point ignition source (5) and supply-water pump power supply beat water under high pressure in sparge pipe simultaneously, and the numerical value of recording occurring continuously thermometric electric control box (4), adjustment temperature control intelligent water supply pump (6) control program, the temperature of down-hole multielement hot fluid is made to remain within the scope of 320 DEG C-280 DEG C, keep injection parameter to design injection rate, just complete a bite well multielement hot fluid and inject construction, through multichannel coiled tubing respectively by air, fuel, electricity, water, temperature measurement signal delivers to oil reservoir position, down-hole, electric ignition makes fuel combustion produce high temperature, temperature control intelligent water supply pump is supplied water by feed pipe and forms steam in the interlayer of down-hole combustion chamber, protection oil well casing (11).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510099636.0A CN104912530B (en) | 2015-03-07 | 2015-03-07 | A kind of coiled tubing underground multielement hot fluid generating means |
| CN201710796055.1A CN107461180A (en) | 2015-03-07 | 2015-03-07 | A kind of underground continuous oil pipe implement |
| CN201710796066.XA CN107575199A (en) | 2015-03-07 | 2015-03-07 | A kind of implementation of underground continuous oil pipe implement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510099636.0A CN104912530B (en) | 2015-03-07 | 2015-03-07 | A kind of coiled tubing underground multielement hot fluid generating means |
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|---|---|---|---|
| CN201710796055.1A Division CN107461180A (en) | 2015-03-07 | 2015-03-07 | A kind of underground continuous oil pipe implement |
| CN201710796066.XA Division CN107575199A (en) | 2015-03-07 | 2015-03-07 | A kind of implementation of underground continuous oil pipe implement |
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| CN104912530A true CN104912530A (en) | 2015-09-16 |
| CN104912530B CN104912530B (en) | 2017-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710796055.1A Withdrawn CN107461180A (en) | 2015-03-07 | 2015-03-07 | A kind of underground continuous oil pipe implement |
| CN201710796066.XA Withdrawn CN107575199A (en) | 2015-03-07 | 2015-03-07 | A kind of implementation of underground continuous oil pipe implement |
| CN201510099636.0A Active CN104912530B (en) | 2015-03-07 | 2015-03-07 | A kind of coiled tubing underground multielement hot fluid generating means |
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| CN201710796055.1A Withdrawn CN107461180A (en) | 2015-03-07 | 2015-03-07 | A kind of underground continuous oil pipe implement |
| CN201710796066.XA Withdrawn CN107575199A (en) | 2015-03-07 | 2015-03-07 | A kind of implementation of underground continuous oil pipe implement |
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| CN105484723A (en) * | 2016-01-15 | 2016-04-13 | 信达科创（唐山）石油设备有限公司 | Connecting pipe device with built-in cable and application thereof |
| CN105735956A (en) * | 2016-02-19 | 2016-07-06 | 中国海洋石油总公司 | Hot fluid injection blockage relieving and production increasing process for immovable string |
| CN106050203A (en) * | 2016-05-25 | 2016-10-26 | 中国石油大学(华东) | Composite thermal fluid variable plug injection gas channeling prevention device and method for heavy oil reservoirs |
| CN106837279A (en) * | 2017-03-31 | 2017-06-13 | 中嵘能源科技集团有限公司 | Underground combined heated device and its heating means |
| CN107035354A (en) * | 2017-06-10 | 2017-08-11 | 大庆东油睿佳石油科技有限公司 | A kind of oil production method for encrypting spontaneous mixed phase hot fluid under horizontal well surge well |
| CN109057764A (en) * | 2018-08-29 | 2018-12-21 | 中国石油天然气股份有限公司 | It is layered fireflood tubing string and its ignition method |
| CN114837643A (en) * | 2022-04-18 | 2022-08-02 | 中海油田服务股份有限公司 | Underground hot fluid generation method and equipment based on multi-channel continuous pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109237513B (en) * | 2018-08-29 | 2024-01-26 | 西安石油大学 | Multistage solid fuel igniter for deep well |
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Also Published As
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|---|---|
| CN107575199A (en) | 2018-01-12 |
| CN107461180A (en) | 2017-12-12 |
| CN104912530B (en) | 2017-10-10 |
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