CN107060716A - A kind of oil shale underground in situ injection splitting constructing device and construction technology - Google Patents
A kind of oil shale underground in situ injection splitting constructing device and construction technology Download PDFInfo
- Publication number
- CN107060716A CN107060716A CN201710445697.7A CN201710445697A CN107060716A CN 107060716 A CN107060716 A CN 107060716A CN 201710445697 A CN201710445697 A CN 201710445697A CN 107060716 A CN107060716 A CN 107060716A
- Authority
- CN
- China
- Prior art keywords
- splitting
- oil shale
- churning
- situ
- injection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- 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
- E21B43/2405—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection in association with fracturing or crevice forming processes
-
- 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
- E21B43/241—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection combined with solution mining of non-hydrocarbon minerals, e.g. solvent pyrolysis of oil shale
Abstract
The invention discloses a kind of oil shale underground in situ injection splitting constructing device and construction technology, using oil shale underground in situ injection splitting constructing device, water under high pressure or pressure-air and the injection of water under high pressure rotary high pressure jet are carried out to ground in-situ oil shale, oil shale is become fritter bulk, sharp condition is provided with for cracking oil shale.Its technology is:Using spraying tool, from earth drilling to oil shale target zone bottom plate, start churning splitting at bottom plate, equipment, side churning splitting oil shale layer, up to churning to oil shale target zone upper plate are carried on side, single-point churning splitting terminates, according to splitting situation, can repeat to cleave with single-point.The churning splitting of next point is carried out again, until having a churning splitting to finish design point position.Each split-point can be realized using the present invention, splitting scope is overlapped mutually, and whole oil shale target zone is uniformly cleaved frustillatum or powdery, is conducive to heat energy infiltration wherein, reach fully heating cracking oil shale purpose.
Description
Technical field
Exploit field the present invention relates to shale oil, more particularly to a kind of oil shale underground in situ injection splitting constructing device and
Construction technology.
Background technology
Current world shale oil stock number is about 411,000,000,000 tons, can equivalent to the explored crude oil in the current world and condensate
Adopt reserves 3 times, China's shale oil stock number is about 47,600,000,000 tons, equivalent to 1.5 times of conventional petroleum stock number, occupies the world
Four, 2,700,000,000 tons of shale oil resource that it has been established that only accounts for the 5.67% of shale oil resource.Therefore, the shale oil of the world and China
Aboundresources, is that after crude oil, shale oil is maximum petroleum resources.
China's dependency degree to Imported oil in 2011 is 55.2%, it is contemplated that the dependency degree to the year two thousand twenty Imported oil will reach
To 60%.The strategic oil reserve number of days of the developed country such as Germany, France all reaches more than 90 days at present, the U.S., the war of Japan
Slightly oil reserve number of days reaches that the strategic oil reserve number of days of China is only reached 30 days more than 150 days.Therefore, China is to oil
Import dependency degree it is very high, strategic oil reserve number of days seldom, exploitation shale oil it is extremely urgent.
The importance of exploitation shale oil is all recognized in the whole world, numerous and confused to formulate national shale oil development plan, to shale oil
Development technique has put into substantial amounts of manpower, financial resources, material resources.But its technology slower development, is not enough to support shale oil exploitation.At present
Shale oil development technique makes shale oil-breaking and entered in producing well mainly for the overall mode of heating of ground in-situ oil shale,
Extract shale oil out again.Due to integrally being heated to ground in-situ shale, it is difficult cracking to make shale oil, and the shale oil of cracking enters production
The time of well is very long, can not continuously be exploited at all, just looks like the water in well, flow into 1 year, several days with regard to that can drain, no
Mining conditions and production shale oil scale can be formed.
The content of the invention
The purpose of the present invention is to overcome above-mentioned problems of the prior art to be sprayed there is provided a kind of oil shale underground in situ
Constructing device and construction technology are cleaved, is cleaved by oil shale underground in situ crushing type, ground in-situ oil shale is formed comprehensively
Powdered granule, is that shale oil fully cracks offer environment, reduces shale oil cost of winning, improve shale oil oil yield.
The technical scheme is that:A kind of oil shale underground in situ injection splitting constructing device, including it is slurries device, defeated
Device and injection apparatus are sent, the slurries device is connected with conveying device, and conveying device is connected with injection apparatus;The slurries dress
Put including water tank, additive liquor box, mixer and slurry storage bucket, water tank and the additive liquor box passes through respectively
Pipeline is connected with mixer, and mixer is connected by pipeline with slurry storage bucket;The conveying device includes high-pressure injection pump;Institute
Stating injection apparatus includes spraying tool, and the spraying tool includes being provided with inside rig and the drilling rod being connected with rig, drilling rod
The nozzle longitudinally helically arranged along drilling rod is offered on the slurry channels of conveying splitting slurries, the drilling rod;The slurries storage
Deposit bucket to be connected with high-pressure injection pump by pipeline, high-pressure injection pump is connected by pipeline with the slurry channels set by drilling rod inside.
A kind of oil shale underground in situ injection splitting construction technology, comprises the following steps:
1) River Bank Stability:Will splitting slurries additive and water in mass ratio 1:100 ratio is mixed in additional agent solution case
Conjunction forms mixed serum, and mixed serum is stirred with the water in water tank by mixer, flows into slurry storage bucket and carries out splitting slurry
Liquid is stored, when spraying tool is crept into and is cleaved, and injection channel is delivered to by slurries are cleaved by high-pressure injection pump;
2) the micro- splitting of ground in-situ is carried out to oil shale to creep into:Spraying tool is used, the low-pressure fuel injection in drilling, from ground
Table creeps into oil shale target zone bottom plate;
3) cleaved using churning, ground in-situ high pressure splitting is carried out to oil shale:Opened at oil shale target zone bottom plate
Beginning high-pressure rotary-spray is cleaved, and spraying tool, side churning splitting oil shale layer, up to being pushed up in churning to oil shale target zone are carried on side
Plate, terminates to single-point churning splitting;
4) multiple splitting:Repeat step 2) and step 3), until oil shale target zone cleaves into the bulk for the size that meets the requirements;
5) next single-point churning splitting is carried out again:Repeat step 2), step 3), step 4);
6) each single-point splitting scope be overlapped mutually, make the whole oil shale target zone of mining area uniformly cleave frustillatum or
Powdery, to be conducive to the heat energy of subsequent handling to permeate wherein, reaches fully heating cracking oil shale purpose.
It is preferred that the splitting slurries additive is oil shale electrolyte additive.
Beneficial effects of the present invention:There is provided a kind of oil shale underground in situ injection splitting construction dress in the embodiment of the present invention
Put and construction technology, ground in-situ oil shale holomorphism powdering particle can be made, heat cracking comprehensively for oil shale and bar is provided
Part, by being cleaved to ground in-situ oil shale, then the technology cracked, the comminuted splitting of oil shale underground in situ is realized, can
Ground in-situ oil shale is fully cracked, form minable shale flow of oil.The present invention is crushed by oil shale underground in situ
Formula is cleaved, and is made ground in-situ oil shale holomorphism powdering particle, is that oil shale fully cracks offer environment, reduces oil shale
Cost of winning, improves oil shale oil yield.
Brief description of the drawings
Fig. 1 sprays splitting device and technology schematic diagram for the oil shale underground in situ of the present invention.
Fig. 2 sprays splitting device schematic diagram for the oil shale underground in situ of the present invention.
Embodiment
Below in conjunction with the accompanying drawings, the specific embodiment of the present invention is described in detail, it is to be understood that of the invention
Protection domain do not limited by embodiment.
Referring to shown in Fig. 1 and Fig. 2, the embodiments of the invention provide a kind of oil shale underground in situ injection splitting constructing device
And construction technology, the injection of its oil shale underground in situ, which cleaves constructing device, includes slurries device, conveying device and injection apparatus, institute
State slurries device to be connected with conveying device, conveying device is connected with injection apparatus;The slurries device includes water tank 1, additive
Liquor box 2, mixer 3 and slurry storage bucket 4, the water tank 1 and additive liquor box 2 pass through pipeline and mixer respectively
3 connections, mixer 3 is connected by pipeline with slurry storage bucket 4;The conveying device includes high-pressure injection pump 5;The injection dress
Put including spraying tool, the spraying tool includes rig 6 and the drilling rod 7 being connected with rig, the inside of drilling rod 7 is split provided with conveying
Split the nozzle for offering and longitudinally helically being arranged along drilling rod on the slurry channels of slurries, the drilling rod 7;The slurry storage bucket 4
It is connected by pipeline with high-pressure injection pump 5, high-pressure injection pump 5 is connected by pipeline with the slurry channels set by the inside of drilling rod 7.
The oil shale underground in situ injection splitting construction technology of the present invention, comprises the following steps:
1) River Bank Stability:Will splitting slurries additive and water in mass ratio 1:100 ratio is mixed in additional agent solution case
Conjunction forms mixed serum, and mixed serum is stirred with the water in water tank by mixer, flows into slurry storage bucket and carries out splitting slurry
Liquid is stored, when spraying tool is crept into and is cleaved, and injection channel is delivered to by slurries are cleaved by high-pressure injection pump;
2) the micro- splitting of ground in-situ is carried out to oil shale to creep into:Spraying tool is used, the low-pressure fuel injection in drilling, from ground
Table creeps into oil shale target zone bottom plate;
3) cleaved using churning, ground in-situ high pressure splitting is carried out to oil shale:Opened at oil shale target zone bottom plate
Beginning high-pressure rotary-spray is cleaved, and spraying tool, side churning splitting oil shale layer, up to being pushed up in churning to oil shale target zone are carried on side
Plate, terminates to single-point churning splitting;
4) multiple splitting:Repeat step 2) and step 3), until oil shale target zone cleaves into the bulk for the size that meets the requirements;
5) next single-point churning splitting is carried out again:Repeat step 2), step 3), step 4);
6) each single-point splitting scope be overlapped mutually, make the whole oil shale target zone of mining area uniformly cleave frustillatum or
Powdery, to be conducive to the heat energy of subsequent handling to permeate wherein, reaches fully heating cracking oil shale purpose.
Further, the splitting slurries additive is oil shale electrolyte additive.
To sum up, the present invention is carried out high using oil shale underground in situ injection splitting constructing device to ground in-situ oil shale
Air and the injection of water under high pressure rotary high pressure jet are pressed, oil shale is become fritter bulk, sharp condition is provided with for cracking oil shale,
Spraying tool is used, from earth drilling oil shale target zone bottom plate, starts to carry equipment, side on churning splitting, side at bottom plate
Churning cleaves oil shale layer, until churning is to oil shale target zone upper plate, single-point churning, which is cleaved, to be terminated.Next point is carried out again
Churning splitting, until design point position is had churning to cleave to finish.Each split-point, splitting scope is overlapped mutually, and is made
Whole oil shale target zone uniformly cleaves frustillatum or powdery, is conducive to heat energy infiltration wherein, reaches fully heating cracked oil
Shale purpose, oil shale underground in situ splitting is detailed as shown in Figure 1.
Therefore, a kind of oil shale underground in situ injection splitting constructing device provided in an embodiment of the present invention and construction technology,
Ground in-situ oil shale holomorphism powdering particle can be made, cracking is heated comprehensively for oil shale and condition is provided, by underground
Oil shale splitting in situ, then the technology cracked, realize the comminuted splitting of oil shale underground in situ, can make the oily page of ground in-situ
Rock is fully cracked, and forms minable shale flow of oil.The present invention is cleaved by oil shale underground in situ crushing type, makes underground former
Position oil shale holomorphism powdering particle, is that oil shale fully cracks offer environment, reduces oil shale recovery cost, improve
Oil shale oil yield.
Disclosed above is only several specific embodiments of the present invention, and still, the embodiment of the present invention is not limited to this, is appointed
What what those skilled in the art can think change should all fall into protection scope of the present invention.
Claims (3)
1. a kind of oil shale underground in situ injection splitting constructing device, it is characterised in that including slurries device, conveying device and spray
Injection device, the slurries device is connected with conveying device, and conveying device is connected with injection apparatus;
The slurries device includes water tank (1), additive liquor box (2), mixer (3) and slurry storage bucket (4), the water
Case (1) and additive liquor box (2) are connected by pipeline with mixer (3) respectively, and mixer (3) is stored up by pipeline and slurries
Deposit bucket (4) connection;
The conveying device includes high-pressure injection pump (5);
The injection apparatus includes spraying tool, and the spraying tool includes rig (6) and the drilling rod (7) being connected with rig,
Offer and longitudinally helically arranged along drilling rod on slurry channels provided with conveying splitting slurries inside drilling rod (7), the drilling rod (7)
Nozzle;
The slurry storage bucket (4) is connected by pipeline with high-pressure injection pump (5), and high-pressure injection pump (5) passes through pipeline and drilling rod
(7) the slurry channels connection set by inside.
2. a kind of oil shale underground in situ injection splitting construction technology, it is characterised in that comprise the following steps:
1) River Bank Stability:Will splitting slurries additive and water in mass ratio 1:100 ratio mixes shape in additional agent solution case
Into mixed serum, mixed serum is stirred with the water in water tank by mixer, flows into and splitting slurries storage is carried out in slurry storage bucket
Deposit, when spraying tool is crept into and is cleaved, injection channel is delivered to by slurries are cleaved by high-pressure injection pump;
2) the micro- splitting of ground in-situ is carried out to oil shale to creep into:Spraying tool is used, the low-pressure fuel injection in drilling is bored from earth's surface
Enter oil shale target zone bottom plate;
3) cleaved using churning, ground in-situ high pressure splitting is carried out to oil shale:Start height at oil shale target zone bottom plate
Pressure rotary-spraying is cleaved, and spraying tool, side churning splitting oil shale layer are put forward on side, until churning is to oil shale target zone upper plate, it is right
Single-point churning splitting terminates;
4) multiple splitting:Repeat step 2) and step 3), until oil shale target zone cleaves into the bulk for the size that meets the requirements;
5) next single-point churning splitting is carried out again:Repeat step 2), step 3), step 4);
6) each single-point splitting scope is overlapped mutually, and the whole oil shale target zone of mining area is uniformly cleaved frustillatum or powder
Shape, to be conducive to the heat energy of subsequent handling to permeate wherein, reaches fully heating cracking oil shale purpose.
3. a kind of oil shale underground in situ injection splitting construction technology as claimed in claim 2, it is characterised in that the splitting
Slurries additive is oil shale electrolyte additive.
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Cited By (1)
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CN114017028A (en) * | 2021-10-25 | 2022-02-08 | 国能神东煤炭集团有限责任公司 | Rock stratum splitting equipment and tunnel top rock stratum splitting method |
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