CN205100960U - Coiled tubing is many first hot -fluid burner in pit - Google Patents
Coiled tubing is many first hot -fluid burner in pit Download PDFInfo
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- CN205100960U CN205100960U CN201520880105.0U CN201520880105U CN205100960U CN 205100960 U CN205100960 U CN 205100960U CN 201520880105 U CN201520880105 U CN 201520880105U CN 205100960 U CN205100960 U CN 205100960U
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Abstract
The utility model relates to a coiled tubing is many first hot -fluid burner in pit, technical scheme: multichannel coiled tubing winding is on coiled tubing hose reel, and inside the coiled tubing injector of multichannel coiled tubing through oily well casing top was connected to oily well casing, oily well casing's bottom was equipped with combustor in the pit, and the inside of combustor is equipped with thermistor sensor in the pit, multichannel coiled tubing's inside be equipped with the air transportation pipe, the inside of air transportation pipe is equipped with delivery pipe, feed of fuel pipe, ignition cable, thermocouple, the beneficial effects of the utility model are that: the utility model discloses an overcoming many first hot -fluids and pouring into not enough that the in -process exists from the well head into to the oil reservoir, the adoption multichannel coiled tubing send air, fuel, water and electricity respectively to in the pit, in oil reservoir position messenger's fuel burning, produces the many first hot -fluids of high temperature high pressure injection oil reservoir, reaches the purpose of high -efficient thermal recovery viscous crude.
Description
Technical field
The utility model relates to a kind of underground continuous oil pipe implement, particularly a kind of coiled tubing down-hole multielement hot fluid burner.
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: CN203867489U, 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
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, a kind of coiled tubing down-hole multielement hot fluid burner is 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, downhole burner, 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 downhole burner, the inside of downhole burner 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 downhole burner comprises shell, combustion chamber, heating chamber is provided with between shell and combustion chamber, described heating chamber connects feed pipe and outlet pipe, the outside of described combustion chamber connects air inlet pipe and dyestuff carrier pipe, described dyestuff carrier pipe connects storage bin, and storage bin connects combustion chamber, and the inside of described combustion chamber is provided with multilayer insulating panel, the top of combustion chamber is provided with exhanst gas outlet, the upper connection point thermoelectricity cable of combustion chamber.
The inwall of above-mentioned heating chamber is provided with vacuum heat-insulating layer.
The beneficial effects of the utility model are: the utility model is overcome the deficiency that multielement hot fluid exists to oil reservoir injection process from well head, adopt multichannel coiled tubing by air, fuel, power and water delivers 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, downhole burner can realize the Thorough combustion of fuel, prevent from causing contingency, improve the efficiency of combustion of fuel, the inside of combustion chamber is provided with multilayer insulating panel, realize stratified combustion, guarantee the stability of efficiency of combustion.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is A-A structural representations of the present utility model;
Accompanying drawing 3 is structural representations of downhole burner;
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, downhole burner 13, thermistor (temperature) sensor 14, feed pipe 15, fuel-supply pipe 16, firing cable 17, thermocouple 18, air delivery pipe 19; Shell 13.1, combustion chamber 13.2, heating chamber 13.3, air inlet pipe 13.4, dyestuff carrier pipe 13.5, storage bin 13.6, dividing plate 13.7, exhanst gas outlet 13.8, vacuum heat-insulating layer 13.9, outlet pipe 13.10.
Detailed description of the invention
1-3 by reference to the accompanying drawings, the utility model will be further described:
A kind of coiled tubing down-hole multielement hot fluid burner that the utility model is mentioned 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, downhole burner 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 downhole burner 13, the inside of downhole burner 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, downhole burner 13 comprises shell 13.1, combustion chamber 13.2, heating chamber 13.3 is provided with between shell 13.1 and combustion chamber 13.2, described heating chamber 13.3 connects feed pipe 15 and outlet pipe 13.10, the outside of described combustion chamber 13.2 connects air inlet pipe 13.4 and dyestuff carrier pipe 13.5, described dyestuff carrier pipe 13.5 connects storage bin 13.6, storage bin 13.6 connects combustion chamber 13.2, the inside of described combustion chamber 13.2 is provided with multilayer insulating panel 13.7, the top of combustion chamber 13.2 is provided with exhanst gas outlet 13.8, the upper connection point thermoelectricity cable 17 of combustion chamber 13.2, the inside of combustion chamber is provided with multilayer insulating panel, realize stratified combustion, guarantee the stability of efficiency of combustion.
In addition, the inwall of heating chamber 13.3 is provided with vacuum heat-insulating layer 13.9.
The implementation method of a kind of coiled tubing down-hole multielement hot fluid burner that the utility model is mentioned, 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 downhole burner 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 downhole burner; One is ensure that downhole burner 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, changes parameter when changing injection rate to ground installation input.
Claims (2)
1. a coiled tubing down-hole multielement hot fluid burner, 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), downhole burner (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 downhole burner (13), the inside of downhole burner (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),
Described downhole burner (13) comprises shell (13.1), combustion chamber (13.2), heating chamber (13.3) is provided with between shell (13.1) and combustion chamber (13.2), described heating chamber (13.3) connects feed pipe (15) and outlet pipe (13.10), the outside of described combustion chamber (13.2) connects air inlet pipe (13.4) and dyestuff carrier pipe (13.5), described dyestuff carrier pipe (13.5) connects storage bin (13.6), storage bin (13.6) connects combustion chamber (13.2), the inside of described combustion chamber (13.2) is provided with multilayer insulating panel (13.7), the top of combustion chamber (13.2) is provided with exhanst gas outlet (13.8), the upper connection point thermoelectricity cable (17) of combustion chamber (13.2).
2. a kind of coiled tubing down-hole according to claim 1 multielement hot fluid burner, is characterized in that: the inwall of described heating chamber (13.3) is provided with vacuum heat-insulating layer (13.9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520880105.0U CN205100960U (en) | 2015-11-06 | 2015-11-06 | Coiled tubing is many first hot -fluid burner in pit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520880105.0U CN205100960U (en) | 2015-11-06 | 2015-11-06 | Coiled tubing is many first hot -fluid burner in pit |
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| CN205100960U true CN205100960U (en) | 2016-03-23 |
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| CN201520880105.0U Active CN205100960U (en) | 2015-11-06 | 2015-11-06 | Coiled tubing is many first hot -fluid burner in pit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840162A (en) * | 2016-05-17 | 2016-08-10 | 赵金岷 | Underground combustion convection heating method |
| CN109237513A (en) * | 2018-08-29 | 2019-01-18 | 西安石油大学 | A kind of depth well use multistage solid fuel igniter |
-
2015
- 2015-11-06 CN CN201520880105.0U patent/CN205100960U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840162A (en) * | 2016-05-17 | 2016-08-10 | 赵金岷 | Underground combustion convection heating method |
| CN105840162B (en) * | 2016-05-17 | 2019-09-17 | 赵金岷 | Underground combustion Convective Heating method |
| CN109237513A (en) * | 2018-08-29 | 2019-01-18 | 西安石油大学 | A kind of depth well use multistage solid fuel igniter |
| 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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