CN107575199A - A kind of implementation of underground continuous oil pipe implement - Google Patents
A kind of implementation of underground continuous oil pipe implement Download PDFInfo
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- CN107575199A CN107575199A CN201710796066.XA CN201710796066A CN107575199A CN 107575199 A CN107575199 A CN 107575199A CN 201710796066 A CN201710796066 A CN 201710796066A CN 107575199 A CN107575199 A CN 107575199A
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- coiled tubing
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- 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
- E21B43/16—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
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Spray-Type Burners (AREA)
- Control Of Combustion (AREA)
- Earth Drilling (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The present invention relates to a kind of implementation of underground continuous oil pipe implement, technical scheme is：Multichannel coiled tubing is wrapped on coiled tubing coiling pipe bender, multichannel coiled tubing is connected to inside oil well casing by the coiled tubing injector at the top of oil well casing, the bottom of oil well casing is provided with underground combustion chamber, the inside of underground combustion chamber is provided with thermistor (temperature) sensor, 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；The beneficial effects of the invention are as follows：The present invention is to overcome multielement hot fluid from well head to deficiency present in oil reservoir injection process, air, fuel, water and electricity are sent to by underground using multichannel coiled tubing respectively, make fuel combustion in oil reservoir position, HTHP multielement hot fluid injection oil reservoir is produced, reaches the purpose of efficient heavy oil heat production.
Description
Technical field
The present invention relates to a kind of implementation of underground continuous oil pipe implement.
Background technology
The widely used coiled tubing in oil field is all single channel flexibility coil pipe at present, is mainly used as conveying the work of Single Medium
Industry is constructed.Generation vapor, the CO that it was oil-field thick-oil Simulation on whole pay zones development in recent years that multielement hot fluid generator, which is,2Gas, N2It is contour
The ground installation of warm high-pressure mixing fluid, it mainly by the water of raw material feed system-i.e., fuel, air, electricity feedway and
The generating means of multielement hot fluid-i.e. ignition burning device and water spray temperature regulating device forms.Due to multielement hot fluid generator ratio
At present high pressure（21Mpa）Steam boiler small volume, in light weight, thermal effect is high and saves the energy, and the tail gas after burning is together
Stratum is injected into, the features such as environmental protection performance is good.More and more substitute high pressure injection-steam boiler and be used for the thick of oil field
Oily thermal recovery production.But there is problems with ground multielement hot fluid from during well head is injected into oil reservoir：
1 is thermal loss, and typically below 1000 meters, the temperature of well head multielement hot fluid passes through oil reservoir typically at 300 DEG C or so
Temperature is typically at 240 DEG C or so when more than 1000 meters of oil pipe is transported to oil reservoir, and heat utilization rate is low, and energy loss is big.
2 be high to oil well completion requirement.By the heat that heat transfer multielement hot fluid is lost from well head to oil reservoir makes oil
Pipe and the rise of casing temperature, extend the casing expandable in pit shaft, if oil well casing is not that thermal recovery special cementing is complete
Well, well head will rise 0.4 meter -- and 1 meter, therefore the well cementing quality of ground injecting multielement hot fluid requires high, costly, limits
The application of the old well of conventional cementing completion.
3 be multielement hot fluid to oil pipe and the seriously corroded of sleeve pipe.Will to the corrosion rate of oil pipe and sleeve pipe to reduce
It is deteriorated into oil well with note corrosion inhibiter, costly economic benefit.Therefore ground multielement hot fluid generator is in land heavy crude reservoir
Using less in exploitation.
China Patent Publication No. is：The U of CN 203867489, patent name are《A kind of composite continuous oil pipe》, including for
The coat of metal for conveying the metal inner lining layer of liquid medium and being sheathed on the inner liner lateral wall, wherein, the gold
The gap belonged between inner liner and the coat of metal forms transport layer, is provided with cable floor in the transport layer and transfusion is led
Pipe, the transfusion catheter and cable floor are both secured on the lateral wall of the metal inner lining layer, and the cable floor includes being fixed on
It is used for the communication cable of transmission signal on the metal inner lining layer, and is fixed on the metal inner lining layer and is used to transmit electric energy
Power cable, the communication cable, power cable and transfusion catheter are wound in the metal inner lining layer in the shape of a spiral
On lateral wall, the level cross-sectionn of the communication cable and the power cable is rounded or oval.
By setting coat of metal and metal inner lining layer, coat of metal protects transfusion catheter and cable floor, so as to
Improve the structural strength of this composite continuous oil pipe.Meanwhile the composite continuous oil pipe that the present embodiment proposes is by setting transfusion to lead
Pipe, it is achieved thereby that fluid power transmission.The injection of multielement hot fluid can not be realized in the equipment, the well of ground injecting multielement hot fluid is consolidated
Well quality requirement is high, costly, limits the application of the old well of conventional cementing completion.
The content of the invention
The purpose of the present invention is aiming at drawbacks described above existing for prior art, there is provided a kind of underground continuous oil pipe operation is set
Standby implementation, air, fuel, water and electricity are sent to by underground using multichannel coiled tubing respectively, make combustion in oil reservoir position
Material burning, HTHP multielement hot fluid injection oil reservoir is produced, reach the purpose of efficient heavy oil heat production.
The underground continuous oil pipe implement that the present invention mentions, technical scheme：Including multichannel coiled tubing, coiled tubing
Injector, coiled tubing coiling pipe bender, thermometric electric cabinet, 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, underground combustion chamber, thermistor pass
Sensor, multichannel coiled tubing are wrapped on coiled tubing coiling pipe bender, and multichannel coiled tubing passes through the company at the top of oil well casing
Continuous tubing injector is connected to inside oil well casing, the ignition power in described multichannel coiled tubing connection thermometric electric cabinet
Source, temperature control intelligent water supply pump, fuel feed pump, air supply compressor, coiled tubing injector is interior to be provided with coiled tubing blowout prevention
Device, coiled tubing injector connection gas injection well head, it is continuously oily that multichannel fixed by heat-resisting annular packer inside oil well casing
Pipe, the bottom of oil well casing are provided with underground combustion chamber, and the inside of underground combustion chamber is provided with thermistor (temperature) sensor, and described is more logical
The inside of road coiled tubing is provided with air delivery pipe, and the inside of air delivery pipe is provided with feed pipe, fuel -supply pipe, ignition power
Cable, thermocouple.
Above-mentioned underground 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 underground combustion chamber includes shell, and the top of underground combustion chamber connects priming supply by firing cable, outside
The inside of shell is provided with hollow chamber, and the inwall of described shell is provided with vacuum heat-insulating layer.
A kind of implementation for underground continuous oil pipe implement that the present invention mentions, its technical scheme are to include following step
Suddenly：
A）Equipment is installed：Multichannel coiled tubing is penetrated into coiled tubing injector, coiled tubing preventer and gas injection well first
Mouthful；Coiled tubing injector, coiled tubing preventer and gas injection well head are sling successively with crane gear, move to injection well head
Top；Heat-resisting annular packer and underground combustion chamber are connected on to the lower end of multichannel coiled tubing again, with multichannel coiled tubing
Together in lower going-into-well, gas injection well head is installed, multichannel coiled tubing is clamped by coiled tubing injector, heat-resisting annular packer
Oil reservoir upper design position is arrived down, makes heat-resisting annular space packer set, the oil casing annular space passage of oil-separating layer to ground,
Prevent multielement hot fluid from entering packer above sleeve pipe, avoid sleeve pipe thermal expansion and be corroded, this completes underground equipment
Installation；Next to that connection ground installation and underground equipment；Raw material injection sled in ground is placed near roller of continuous oil pipe, will
The air supply exhaust outlet of compressor of raw material injection sled is connected with the air delivery pipe of multichannel coiled tubing, fuel feed pump
Outlet is connected with fuel -supply pipe, and the outlet of temperature control intelligent water supply pump is connected with feed pipe, and firing cable is connected with priming supply,
Thermometric electric cabinet is connected with temperature control intelligent water supply pump, and this completes the installation of ground installation and underground equipment.
B）Raw material injection igniting produces multielement hot fluid：Detection ground installation and underground equipment respectively before raw material injection
Working condition, after confirming that each device parameter is normal, first to underground air injection 10000m3, recording equipment running parameter and well head
Air injects pressure, and then starting fluid supply pump send fuel into fuel -supply pipe, is also turned on priming supply and supply-water pump
Power supply beats water under high pressure into sparge pipe, and continuously records the numerical value of thermometric electric cabinet, adjusts temperature control intelligent water supply pump control program,
The temperature of underground multielement hot fluid is maintained in the range of 320 DEG C -280 DEG C, keep injection parameter to design injection rate, it is just complete
Inject and construct into a bite well multielement hot fluid, by multichannel coiled tubing respectively by air, fuel, electricity, water, temperature measurement signal
Underground oil reservoir position is sent to, electric ignition makes fuel combustion produce high temperature, and temperature control intelligent water supply pump is burnt by feed pipe to underground
Supplied water in the interlayer of chamber and form steam；First, ensure that underground combustion chamber is not burnt out by high temperature；Second, produced after the burning of regulation underground
The temperature of high-temperature gas mixture body is not more than 500 DEG C, protects oil well casing.
The beneficial effects of the invention are as follows：The present invention is to overcome multielement hot fluid from well head to present in oil reservoir injection process
Deficiency, air, fuel, water and electricity are sent to by underground using multichannel coiled tubing respectively, makes fuel combustion in oil reservoir position, produces
Raw HTHP multielement hot fluid injection oil reservoir, reach the purpose of efficient heavy oil heat production.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of the present invention；
Accompanying drawing 2 is the A-A structural representations of the present invention；
Accompanying drawing 3 is the structural representation of underground combustion chamber；
In upper figure：Multichannel coiled tubing 1, coiled tubing injector 2, coiled tubing coiling pipe bender 3, thermometric electric cabinet 4, ignition power
Source 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
Casing 11, heat-resisting annular packer 12, underground combustion chamber 13, thermistor (temperature) sensor 14, feed pipe 15, fuel -supply pipe
16th, firing cable 17, thermocouple 18, air delivery pipe 19；Shell 13.1, chamber 13.2, vacuum heat-insulating layer 13.3.
Embodiment
With reference to accompanying drawing 1-3, the invention will be further described：
A kind of underground continuous oil pipe implement that the present invention mentions, including multichannel coiled tubing 1, coiled tubing injector 2,
Coiled tubing coiling pipe bender 3, thermometric electric cabinet 4, priming supply 5, temperature control intelligent water supply pump 6, fuel feed pump 7, air supply pressure
Contracting machine 8, coiled tubing preventer 9, gas injection well head 10, oil well casing 11, heat-resisting annular packer 12, underground combustion chamber 13, heat
Sensing resistance transducer 14, multichannel coiled tubing 1 are wrapped on coiled tubing coiling pipe bender 3, and multichannel coiled tubing 1 passes through oil well
The coiled tubing injector 2 at the top of sleeve pipe 11 is connected to inside oil well casing 11, described multichannel coiled tubing 1 connection thermometric
Priming supply 5, temperature control intelligent water supply pump 6, fuel feed pump 7, air supply compressor 8 in electric cabinet 4, coiled tubing injection
Coiled tubing preventer 9 is provided with device 2, coiled tubing injector 2 connects gas injection well head, passes through heat-resistant rings inside oil well casing 11
Empty packer 12 fixes multichannel coiled tubing 1, and the bottom of oil well casing 11 is provided with underground combustion chamber 13, underground combustion chamber 13
Inside is provided with thermistor (temperature) sensor 14, and the inside of described multichannel coiled tubing 1 is provided with air delivery pipe 19, air conveying
The inside of pipe 19 is provided with feed pipe 15, fuel -supply pipe 16, firing cable 17, thermocouple 18.
Wherein, underground combustion chamber 13 is connected to the end of multichannel coiled tubing 1, underground heat-resistant packer and polynary hot-fluid
The underground combustion chamber 13 of body generator, underground combustion chamber 13 can be with making its work under multichannel coiled tubing 1 together lower going-into-well.
Can also be connected under the lower end lower going-into-well of other pipe, first make annular packer work after, then tripping in multichannel coiled tubing with
It is docked.
Referring to the drawings 2, the inwall of multichannel coiled tubing 1 is provided with metal inner lining layer, the lateral wall of multichannel coiled tubing 1
It is provided with coat of metal.
Referring to the drawings 3, underground combustion chamber 13 includes shell 13.1, and the top of underground combustion chamber 13 is connected by firing cable 17
Contact ignition source 5, the inside of shell 13.1 are provided with hollow chamber 13.2, and the inwall of described shell 13.1 is provided with vacuum heat-insulation
Layer 13.3.
A kind of implementation for underground continuous oil pipe implement that the present invention mentions, comprises the following steps：
A）Equipment is installed：Multichannel coiled tubing 1 is penetrated into coiled tubing injector 2, coiled tubing preventer 9 and gas injection first
Well head 10.Coiled tubing injector 2, coiled tubing preventer 9 and gas injection well head 10 are sling successively with crane gear, move to note
Enter the top of well head.Heat-resisting annular packer 12 and underground combustion chamber 13 are connected on to the lower end of multichannel coiled tubing 1 again, with more
Passage coiled tubing 1 in lower going-into-well, installs gas injection well head 10 together, and multichannel coiled tubing is clamped by coiled tubing injector 2
1, heat-resisting annular packer is arrived oil reservoir upper design position 12 times.Make heat-resisting annular packer 12 setting, oil-separating layer to ground
The oil casing annular space passage in face.Prevent multielement hot fluid from entering packer above sleeve pipe, avoid sleeve pipe thermal expansion and rotten
Erosion.This completes the installation of underground equipment.Next to that connection ground installation and underground equipment.Raw material injection sled in ground is put
Near roller of continuous oil pipe, the sky of the air supply exhaust outlet of compressor 8 and multichannel coiled tubing 1 of sled is fed injection into
Letter shoot 19 is connected, and the outlet of fuel feed pump 7 is connected with fuel -supply pipe 16, the outlet and confession of temperature control intelligent water supply pump 6
Water pipe 15 is connected, and firing cable 17 is connected with priming supply 5, and thermometric electric cabinet 4 is connected with temperature control intelligent water supply pump 6, thus
Complete the installation of ground installation and underground equipment.
B）Raw material injection igniting produces multielement hot fluid：Detection ground installation and underground equipment respectively before raw material injection
Working condition, after confirming that each device parameter is normal, first to underground air injection 10000m3(mark side), recording equipment running parameter
Pressure is injected with well head air, then starting fluid supply pump 7 send fuel into fuel -supply pipe 16, is also turned on priming supply
5 and water supply pumping source beat water under high pressure into sparge pipe, and continuously record the numerical value of thermometric electric cabinet 4, adjust temperature control intelligent water supply
The control program of pump 6, the temperature of underground multielement hot fluid is set to be maintained in the range of 320 DEG C -280 DEG C.Injection parameter is kept to design
Injection rate, just complete a bite well multielement hot fluid injection construction, by multichannel coiled tubing respectively by air, fuel, electricity,
Water, temperature measurement signal are sent to underground oil reservoir position, and electric ignition makes fuel combustion produce high temperature, and temperature control intelligent water supply pump passes through feed pipe
Supplied water into the interlayer of underground combustion chamber and form steam；First, ensure that underground combustion chamber 13 is not burnt out by high temperature；Second, regulation well
The temperature that high-temperature gas mixture body is produced after lower burning is not more than 500 DEG C, protects oil well casing 11.
Operation principle：The air compressor for first starting ground installation injects large quantity of air to oil reservoir, makes under heat-resistant packer
The oil reservoir of in the sleeve pipe in portion and near wellbore zone is full of air, forms good burning situation, restarts fuel feed pump, ignition power
Source and temperature control intelligent water supply pump, when the fuel of ground injection reaches underground multielement hot fluid combustion chamber, firing cable electric discharge makes
Fuel combustion produces high temperature, and because combustion chamber is the bimetallic tube of lower boreholes, temperature control intelligent water supply pump in ground is filled with interlayer
The water under high pressure squeezed into, the high temperature in combustion tube can not directly spray to production string, and heat is absorbed by the water in interlayer in combustion chamber,
Form vapor and the HTHP of discharge, Co in combustion chamber2 、N2 , Co, air mixing after be injected into oil reservoir, positioned at combustion chamber
Temperature signal is transmitted to temperature control intelligent water supply pump by the thermocouple of bottom, and supply-water pump changes according to the multielement hot fluid temperature of setting to be supplied
Water.When multielement hot fluid temperature is higher than setting value, supply-water pump increase output, on the contrary reduce output.When underground is polynary
When the generation speed of hot fluid is more than setting value, ground installation surpasses how much design load calculates reduction fuel supply according to output
Amount, makes current be in dynamic equilibrium working condition.Inputted when changing injection rate to ground installation and change parameter.
Claims (1)
1. a kind of implementation of underground continuous oil pipe implement, it is characterized in that, comprise the following steps：
A）Equipment is installed：First by multichannel coiled tubing（1）Penetrate coiled tubing injector（2）, coiled tubing preventer（9）
With gas injection well head（10）；With crane gear successively by coiled tubing injector（2）, coiled tubing preventer（9）With gas injection well head
（10）Sling, move to the top of injection well head；Again by heat-resisting annular packer（12）With underground combustion chamber（13）It is connected on multichannel
Coiled tubing（1）Lower end, with multichannel coiled tubing（1）Together in lower going-into-well, gas injection well head is installed（10）, by coiled tubing
Injector（2）Clamp multichannel coiled tubing（1）, heat-resisting annular packer（12）Oil reservoir upper design position is arrived down；Make resistance to
Hot annular packer（12）It is setting, the oil casing annular space passage of oil-separating layer to ground, prevent multielement hot fluid from entering envelope
Every device above sleeve pipe, the installation of underground equipment is completed；Next to that connection ground installation and underground equipment：Ground raw material is injected
Sled is placed near roller of continuous oil pipe, feeds injection into the air supply compressor of sled（8）Exhaust outlet is continuously oily with multichannel
Pipe（1）Air delivery pipe（19）It is connected, fuel feed pump（7）Outlet and fuel -supply pipe（16）It is connected, temperature control intelligently supplies
Water pump（6）Outlet and feed pipe（15）It is connected, firing cable（17）With priming supply（5）It is connected, thermometric electric cabinet（4）With temperature
Control intelligent water supply pump（6）It is connected, this completes the installation of ground installation and underground equipment；
B）Raw material injection igniting produces multielement hot fluid：Detect the work of ground installation and underground equipment respectively before raw material injection
Situation, after confirming that each device parameter is normal, first to underground air injection 10000m3, recording equipment running parameter and well head air
Pressure is injected, then starting fluid supply pump（7）To fuel -supply pipe（16）Fuel is inside sent, is also turned on priming supply（5）With
Water supply pumping source beats water under high pressure into sparge pipe, and continuously records thermometric electric cabinet（4）Numerical value, adjust temperature control intelligent water supply pump
（6）Control program, the temperature of underground multielement hot fluid is maintained in the range of 320 DEG C -280 DEG C, keep injection parameter to design
Injection rate, just complete a bite well multielement hot fluid injection construction, by multichannel coiled tubing respectively by air, fuel, electricity,
Water, temperature measurement signal are sent to underground oil reservoir position, and electric ignition makes fuel combustion produce high temperature, and temperature control intelligent water supply pump passes through feed pipe
Supplied water into the interlayer of underground combustion chamber and form steam, protect oil well casing（11）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710796066.XA CN107575199A (en) | 2015-03-07 | 2015-03-07 | A kind of implementation of underground continuous oil pipe implement |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710796066.XA CN107575199A (en) | 2015-03-07 | 2015-03-07 | A kind of implementation of underground continuous oil pipe implement |
| CN201510099636.0A CN104912530B (en) | 2015-03-07 | 2015-03-07 | A kind of coiled tubing underground multielement hot fluid generating means |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510099636.0A Division CN104912530B (en) | 2015-03-07 | 2015-03-07 | A kind of coiled tubing underground multielement hot fluid generating means |
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| CN107575199A true CN107575199A (en) | 2018-01-12 |
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| CN201710796066.XA Withdrawn CN107575199A (en) | 2015-03-07 | 2015-03-07 | A kind of implementation of underground continuous oil pipe implement |
| CN201710796055.1A Withdrawn CN107461180A (en) | 2015-03-07 | 2015-03-07 | A kind 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 |
| 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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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN110043235A (en) * | 2019-05-23 | 2019-07-23 | 西南石油大学 | A kind of thick oil filling vaporization method burnt using underground supercritical water |
| CN112302598A (en) * | 2020-11-20 | 2021-02-02 | 西南石油大学 | A system and method for downhole steam generation in ultra-deep heavy oil reservoirs |
| CN112302598B (en) * | 2020-11-20 | 2022-04-01 | 西南石油大学 | A system and method for downhole steam generation in ultra-deep heavy oil reservoirs |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104912530B (en) | 2017-10-10 |
| CN104912530A (en) | 2015-09-16 |
| CN107461180A (en) | 2017-12-12 |
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