CN107882533A - The method that the uniform output of horizontal segment is realized using the solid particle in oilfield sewage - Google Patents
The method that the uniform output of horizontal segment is realized using the solid particle in oilfield sewage Download PDFInfo
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- CN107882533A CN107882533A CN201711062564.8A CN201711062564A CN107882533A CN 107882533 A CN107882533 A CN 107882533A CN 201711062564 A CN201711062564 A CN 201711062564A CN 107882533 A CN107882533 A CN 107882533A
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- 239000002245 particle Substances 0.000 title claims abstract description 129
- 239000010865 sewage Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000007787 solid Substances 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 80
- 239000007788 liquid Substances 0.000 claims abstract description 50
- 239000006185 dispersion Substances 0.000 claims abstract description 40
- 239000002981 blocking agent Substances 0.000 claims abstract description 39
- 239000011148 porous material Substances 0.000 claims abstract description 25
- 230000000903 blocking effect Effects 0.000 claims abstract description 9
- 238000004062 sedimentation Methods 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 11
- 239000012266 salt solution Substances 0.000 claims description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 230000007812 deficiency Effects 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 238000007667 floating Methods 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims description 2
- 239000011435 rock Substances 0.000 abstract description 18
- 230000035699 permeability Effects 0.000 abstract description 15
- 238000001514 detection method Methods 0.000 description 5
- 238000005553 drilling Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 235000020681 well water Nutrition 0.000 description 2
- 239000002349 well water Substances 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The present invention's realizes that the method for the uniform output of horizontal segment is included Step 1: with reference to respective layer position arithmetic average tortuosity using the solid particle in oilfield sewage, calculates hypertonic water exit end pore throat radius, selects water blockoff grain diameter；Step 2: according to the particle diameter for calculating gained water blockoff particle, from mummifying pool in highly filled oilfield sewage, particle flow is sorted through sedimentation, sub-elects the storage process matched somebody with somebody liquid process, sub-elect particle blocking agent dispersion liquid of particle, sorts the particle blocking agent dispersion liquid containing particle；Step 3: particle blocking agent dispersion liquid is pumped to water blockoff well by delivery pump；Step 4: particle blocking agent dispersion liquid injects water blockoff underground through the booster pump on water blockoff well, the water exit end that the particle in particle blocking agent dispersion liquid enters hypertonic big pore throat carries out deep blocking, drops low-yield water.The large-size particles selected according to hypertonic rock core pore throat radius, the long-range low permeability cores of closure to hypertonic rock core, there is significantly stifled hypertonic, not stifled hypotonic selective shut-off ability.
Description
Technical field
The present invention relates to a kind of method that solid particle using in oilfield sewage realizes the uniform output of horizontal segment.
Background technology
Horizontal well is during oil reservoir development, and output is uneven on net horizontal section, and water body is broken through from high speed band, causes oil well
Quick water logging, have a strong impact on the benefit exploitation of oil reservoir.Water blockoff is the effective means controlled water, harnessed the river, and can effectively delay water enchroachment (invasion) speed
And intensity, so as to well development effect of improving the standard.Two class water blockage patterns mainly are used at present, first, well logging water detection determines wet well
The blocking water outlet well sections such as cement, packer are utilized after section.Second, generally blocked up for the selective water-plugging of representative with frozen glue, waterglass etc.
Water mode, meet water reaction and produce plug, meet oily do not react and do not block, selective shut-off water outlet high infiltration strip.
Due to problems with, being widely popularized for conventional horizontal well water-plugging technology have impact on：（1）Blocking is suitable after well logging water detection
Scope is answered to be limited, it is with high costs：First, the pit shaft of horizontal well is not clean, trail change is big, big well depth extended reach well, water detection of logging well
The instrument risk that is hampered is big；Second, the daily output of testing level well generally need to just now can liquid producing profile log more than 80；Third, low liquid producing well
Saturation degree well logging can only be carried out, easily by the nearly well pollution effect for repairing well killing fluid in Completion Operations；Fourth, water detection increase expense 20-30
Wan Yuan, supporting ten thousand yuan of cement or packer blocking operation 10-20, after blocking well section be also difficult to carry out huff and puff, acidfracturing treatment,
The subsequent jobs such as deep water blockoff.（2）With high costs, the selective water plugging agent especially high temperature resistant of the general water blockoff of selective water-plugging
（110-120℃）, under resistance to high salt conditions（Salinity 20 × 104Mg/L, calcium ions and magnesium ions content 1 × 104mg/L）It is high with agent cost
It is high, system in Tahe Oilfield selective water plugging early stage 430,000 yuan/well of average individual well expense.
The content of the invention
There is problem in the present invention, there is provided a kind of cheap selective water-plugging of cost for conventional water plugging of horizontal well technique at present
The method of general water blockoff, the method that the uniform output of horizontal segment is specially realized using the solid particle in oilfield sewage.
The object of the present invention is achieved like this：The uniform output of horizontal segment is realized using the solid particle in oilfield sewage
Method, it is characterised in that：Comprise the steps of：
Step 1: with reference to respective layer position arithmetic average tortuosity, hypertonic water exit end pore throat radius is calculated, selects water blockoff particle
Footpath；
Step 2: the particle diameter of the required water blockoff particle of gained, the highly filled oil field from mummifying pool are calculated according to step 1
In sewage, sort particle flow through sedimentation, sub-elect the storage matched somebody with somebody liquid process, sub-elect particle blocking agent dispersion liquid of particle
Journey, sort the particle blocking agent dispersion liquid containing particle；
Step 3: sub-elect the outer defeated of particle blocking agent dispersion liquid：Particle blocking agent dispersion liquid is pumped to water blockoff well by delivery pump；
Step 4: selective shut-off：Particle blocking agent dispersion liquid injects water blockoff underground, particle blocking agent point through the booster pump on water blockoff well
The water exit end that particle in dispersion liquid enters hypertonic big pore throat carries out deep blocking, drops low-yield water.
Sedimentation sorting particle flow refers to that sewage highly filled in mummifying pool is delivered to hydrocyclone by slush pump
Interior, hydrocyclone bottom is provided with high pressure intake, and eddy motion is mixed to form with sewage, and particle diameter is big in sewage, quality is high
Particle settles downwards, into agitator tank, is mixed with salt solution, and particle diameter is small, low-quality particle hangs on hydrocyclone top
It is floating, flowed out by sorting mouth, circulated into mummifying pool；
Sub-elect particle refers to that the particle that well-graded particle diameter is big, quality is high enters stirring by agitator tank charging aperture with liquid process
Tank, salt solution is passed through by inlet, is stirred in agitator tank and form particle blocking agent dispersion liquid.
Particle blocking agent dispersion liquid that the storage process of particle blocking agent dispersion liquid refers to be stirred is sub-elected by delivery pump pump
Deliver to storage tank storage.
Due to carrying out above-mentioned technical proposal, according to the large-size particles of hypertonic rock core pore throat radius selection, to hypertonic rock core
The long-range low permeability cores of closure, there is significantly stifled hypertonic, not stifled hypotonic selective shut-off ability.
Brief description of the drawings：The concrete structure of the present invention is provided by following drawings and examples：
Fig. 1 is the structural representation for realizing the present invention.
Legend：1st, mummifying pool, 2, hydrocyclone, 3, agitator tank, 4, storage tank, 5, slush pump, 6, hydrocyclone charging
Mouthful, 7, sorting mouth, the 8, first high pressure intake, the 9, first valve, 10, agitator tank charging aperture, the 11, second high pressure intake, 12,
Second valve, 13, delivery pump, the 14, the 3rd valve, the 15, the 4th valve, the 16, the 5th valve, the 17, the 6th valve, 11, inlet,
13rd, delivery pump, 18, auxiliary feed ports.
Embodiment：The present invention is not limited by following embodiments, can technique according to the invention scheme and reality
Situation determines specific embodiment.
Embodiment：As shown in figure 1, a kind of device for sorting solid particle in oilfield sewage includes being used to store oilfield sewage
Mummifying pool 1, the mummifying pool 1 is connected by sewage feed pipe with the hydrocyclone charging aperture 2 of hydrocyclone 2, in dirt
Slush pump 5 is provided with water feed pipe；The bottom of hydrocyclone 2 sets high pressure intake 8, and top sets sorting mouth 7, sorts mouth
7 connect with mummifying pool 1；The discharging opening of hydrocyclone 2 is connected by pipeline with the agitator tank charging aperture 10 of agitator tank 3, stirring
Stirring vane is set in tank 3, the top of agitator tank 3 sets inlet 11 and auxiliary feed ports 18；The bottom of agitator tank 3 and top are provided with two
Road pipeline, and the first valve 9, the second valve 12 are installed respectively, two-way pipeline also is provided with the bottom of storage tank 4 and top, and respectively
Install the 3rd valve 14, the 4th valve 15；The bottom conduit of agitator tank 3 merges that to form first defeated with the bottom conduit of storage tank 4 in rear end
Liquid pipe, delivery pump 13 is provided with the first drain pipe；The top pipeline of agitator tank 3 merges shape with the top pipeline of storage tank 4 in rear end
Into the second woven hose, the 5th valve 17, the first woven hose and the second woven hose are provided with the second woven hose and is merged in rear end
Total woven hose is formed, the 6th valve 18 is provided with total woven hose.
The method for realizing the uniform output of horizontal segment using the solid particle in oilfield sewage comprises the steps of：
Step 1: with reference to respective layer position arithmetic average tortuosity, hypertonic water exit end pore throat radius is calculated, selects water blockoff particle
Footpath；
Permeability and pore throat radius meet following equation（1）, according to the actual measurement hole of the layer position polylith reality rock drilling heart where target well
Degree, permeability, pore throat radius can calculate the tortuosity of respective rock core, therefore by the tortuous of block reality rock drilling heart arithmetic average
The permeability of possible hypertonic section of the water outlet of degree, water blockoff well, it is possible to calculate hypertonic section of the pore throat radius.Water blockoff used in water blockoff
The median particle diameter of grain is more than or equal to 1/3 hypertonic water exit end pore throat radius：
Formula（1）
In formula：r--- pore throat radius, μm；
K--- rock absolute permeability, μm2；
φ--- porosity；
τ--- the ratio that tortuosity, i.e. fluid pass through rock duct physical length and appearance length.
Step 2: the particle diameter of the required water blockoff particle of gained is calculated according to step 1, it is highly filled from mummifying pool
In oilfield sewage, sort particle flow through sedimentation, sub-elect the storage matched somebody with somebody liquid process, sub-elect particle blocking agent dispersion liquid of particle
Process, sort the particle blocking agent dispersion liquid containing particle：
A, sedimentation sorting particle flow：The highly filled sewage of mummifying pool 1 is delivered in hydrocyclone 2 by slush pump 5, water
The bottom of power cyclone 2 is provided with high pressure intake 8, is mixed to form eddy motion with sewage, the particle that particle diameter is big, quality is high in sewage
Sedimentation downwards, into agitator tank 3, being mixed with salt solution, particle diameter is small, low-quality particle suspends on the top of hydrocyclone 2,
Flowed out by sorting mouth 7, circulated into mummifying pool 1；
B, sub-elect particle matches somebody with somebody liquid process：The particle that well-graded particle diameter is big, quality is high is entered by agitator tank charging aperture 10 to be stirred
Tank 3 is mixed, salt solution is passed through by inlet 11, is stirred in agitator tank 3 and forms particle blocking agent dispersion liquid, amount of particles is by stirring tank body
Horizontal segment length's measuring and calculating, amount of particles is in 0.5-1kg/m, and granular mass percentage is in 0.5-1.0%, if sub-electing particle blocking agent
Granule density deficiency in dispersion liquid, then add additional solid particle at auxiliary feed ports 18, ultimately forms particle blocking agent point
Dispersion liquid；
C, the storage process of particle blocking agent dispersion liquid is sub-elected：First valve 9, the 4th valve 15, the 5th valve 16 are opened, and second
Valve 12, the 3rd 14, the 6th valve 17 are closed, and the particle blocking agent dispersion liquid being stirred is pumped to storage tank 4 by delivery pump 13 and stored；
D, sub-elect returning for particle blocking agent dispersion liquid and mix process：Second valve 12, the 3rd valve 14, the 5th valve 16 are opened, the
One valve 9, the 4th valve 15, the 6th valve 17 are closed, by the particle blocking agent dispersion liquid for needing to be again stirring in storage tank 4 by conveying
Pump 13, which is pumped to agitator tank 3 and returned again, to be mixed；
Step 3: sub-elect the outer defeated of particle blocking agent dispersion liquid：3rd valve 14, the 6th valve 17 are opened, the first valve 9,
Five valves 16 are closed, and particle blocking agent dispersion liquid is pumped into water blockoff well by delivery pump 13；
Step 4: selective shut-off：Particle blocking agent dispersion liquid injects water blockoff underground, particle blocking agent point through the booster pump on water blockoff well
The water exit end that particle in dispersion liquid enters hypertonic big pore throat carries out deep blocking, drops low-yield water, to the potentiality section of hypotonic small pore throat,
Particle can not go deep into, the particle that drives a well returns tell after employed, realize and block hypertonic EXIT POINT, start hypotonic potentiality section, realize well
The purpose of the uniform output of section.
Foregoing additional solid grain size requirement is that median particle diameter is more than or equal to 1/3 hypertonic water exit end pore throat radius, mainly
It is calcium carbonate of 100 mesh, 300 mesh, 600 mesh, 1000 mesh etc..
The indoor displacement test of the real rock drilling heart shows：The large-size particles selected according to hypertonic rock core pore throat radius, to height
The long-range low permeability cores of sealing ratiod of rock core are oozed, there is significantly stifled hypertonic, not stifled hypotonic selective shut-off ability.
The indoor displacement test of the real rock drilling heart comprises the following steps：
1）By hypertonic, hypotonic two pieces of rock core parallel connections, first simulated formation reversely determines initial water and surveys infiltration to the water drive process of pit shaft
RateK 0；
2）By the arithmetic average tortuosity of place layer position, the pore throat radius of hypertonic rock core, the intermediate value grain of water blockoff particle are calculated
Footpath is more than or equal to 1/3 hypertonic rock core pore throat radius；
3）Simulation wellbore hole injects the process of blocking agent, the particle dispersion of 1 times of pore volume of positive injection to stratum；
4）Stratum is to the production process of pit shaft when being driven a well after simulation water blockoff, and water surveys permeability after reversely measure is stifled againK 1；
5）According to the following formula 2, by initial water survey permeability and it is stifled after water survey computing permeability sealing ratiod, by contrasting hypertonic rock
The sealing ratiod of the heart and low permeability cores, evaluation sorting particle block up hypertonic, not stifled hypotonic selective shut-off ability.
（Formula 2）
In formula：K 0--- initial water surveys permeability, μm2；
K 1--- water surveys permeability after stifled, μm2。
Sieve tube completion, core intersection 23.5m, water 12.74m is kept away, horizontal segment front end is hypertonic, mean permeability extreme difference 6.8, no hydromining
Oily phase 330d, recovery percent of reserves 24.6%.Horizontal segment segment length 104.9m, by horizontal segment treating capacity 1.0kg/m, granular mass percentage
1%, add up injection stratum 105m3Particle dispersion, due to hypertonic well section mean permeability 812.4 × 10-3μm2, average pore
0.23, the arithmetic average tortuosity of the layer position reality rock drilling heart is 4.84, and hypertonic pore throat radius is 25.73 μm, therefore selects intermediate value grain
The particle of footpath >=8 μm carries out water blockoff.Daily output liquid 74.7t before the well is stifled, day oil-producing 8.3t, aqueous 96.2%.Produce liquid after water blockoff daily
96.2t, day oil-producing 28.3t, aqueous 70.4%.Add up to increase oily 1316t after stifled, water plugging effect is notable.
In experiment with the present invention, sinopec northwest oilfield branch system in Tahe Oilfield is accumulative to implement experimental level well water blockoff
181 wells, water blockoff effective percentage brings up to 60% by early stage 51%, adds up to increase 15.42 ten thousand tons of oil.Individual well water blockoff expense is logged well by early stage
Ten thousand yuan of the 30-50 of blocking after water detection, early stage 430,000 yuan of the general water blockoff of selectivity, it is reduced to 170,000 yuan.
Described above is only intended to clearly illustrate example of the present invention, and is not to embodiments of the present invention
Restriction.It is every to belong to the guarantor of obvious changes or variations that technical scheme amplifies out still in the present invention
Protect the row of scope.
Claims (10)
1. a kind of method that solid particle using in oilfield sewage realizes the uniform output of horizontal segment, it is characterised in that：Comprising with
Lower step：
Step 1: with reference to respective layer position arithmetic average tortuosity, hypertonic water exit end pore throat radius is calculated, selects water blockoff particle
Footpath；
Step 2: the particle diameter of the required water blockoff particle of gained, the highly filled oil field from mummifying pool are calculated according to step 1
In sewage, sort particle flow through sedimentation, sub-elect the storage matched somebody with somebody liquid process, sub-elect particle blocking agent dispersion liquid of particle
Journey, sort the particle blocking agent dispersion liquid containing particle；
Step 3: sub-elect the outer defeated of particle blocking agent dispersion liquid：Particle blocking agent dispersion liquid is pumped to water blockoff well by delivery pump；
Step 4: selective shut-off：Particle blocking agent dispersion liquid injects water blockoff underground, particle blocking agent point through the booster pump on water blockoff well
The water exit end that particle in dispersion liquid enters hypertonic big pore throat carries out deep blocking, drops low-yield water.
2. the method for utilizing the solid particle in oilfield sewage to realize the uniform output of horizontal segment as claimed in claim 1, it is special
Sign is：The median particle diameter of water blockoff particle used in water blockoff is more than or equal to 1/3 hypertonic water exit end pore throat radius.
3. the method for utilizing the solid particle in oilfield sewage to realize the uniform output of horizontal segment as claimed in claim 1, it is special
Sign is：Sedimentation sorting particle flow refers to that sewage highly filled in mummifying pool is delivered to hydrocyclone by slush pump
Interior, hydrocyclone bottom is provided with high pressure intake, and eddy motion is mixed to form with sewage, and particle diameter is big in sewage, quality is high
Particle settles downwards, into agitator tank, is mixed with salt solution, and particle diameter is small, low-quality particle hangs on hydrocyclone top
It is floating, flowed out by sorting mouth, circulated into mummifying pool.
4. the method for utilizing the solid particle in oilfield sewage to realize the uniform output of horizontal segment as claimed in claim 1, it is special
Sign is：Sub-elect particle refers to that the particle that well-graded particle diameter is big, quality is high is entered by agitator tank charging aperture with liquid process
Agitator tank, salt solution is passed through by inlet, is stirred in agitator tank and form particle blocking agent dispersion liquid.
5. the method for utilizing the solid particle in oilfield sewage to realize the uniform output of horizontal segment as claimed in claim 4, it is special
Sign is：Amount of particles exists by the horizontal segment length measuring and calculating of stirring tank body, amount of particles in 0.5-1kg/m, granular mass percentage
0.5-1.0%。
6. the method for utilizing the solid particle in oilfield sewage to realize the uniform output of horizontal segment as claimed in claim 4, it is special
Sign is：When sub-electing the granule density deficiency in particle blocking agent dispersion liquid, additional solid particle is added at auxiliary feed ports,
The median particle diameter of additional solid grain size is more than or equal to 1/3 hypertonic water exit end pore throat radius.
7. the method that a kind of solid particle using in oilfield sewage as claimed in claim 6 realizes the uniform output of horizontal segment,
It is characterized in that：Additional solid particle is 100 mesh, 300 mesh, 600 mesh, the calcium carbonate of 1000 mesh.
8. the method for utilizing the solid particle in oilfield sewage to realize the uniform output of horizontal segment as claimed in claim 1, it is special
Sign is：The particle blocking agent dispersion liquid that the storage process of particle blocking agent dispersion liquid refers to be stirred is sub-elected to be pumped by delivery pump
Stored to storage tank.
9. the method for utilizing the solid particle in oilfield sewage to realize the uniform output of horizontal segment as claimed in claim 8, it is special
Sign is：The particle blocking agent dispersion liquid for needing to be again stirring in storage tank by delivery pump can be pumped to agitator tank and returned again and mixed.
A kind of 10. device for sorting solid particle in oilfield sewage, it is characterised in that：Including the desiccation for storing oilfield sewage
Pond, the mummifying pool is connected by sewage feed pipe with the hydrocyclone charging aperture of hydrocyclone, on sewage feed pipe
It is provided with slush pump；Hydrocyclone bottom sets high pressure intake, and top sets sorting mouth, and sorting mouth connects with mummifying pool；
The discharging opening of hydrocyclone is connected by pipeline with the agitator tank charging aperture of agitator tank, and stirring vane is set in agitator tank, stirring
Upper end sets inlet and auxiliary feed ports；Stirring pot bottom and top be provided with two-way pipeline, and install respectively the first valve,
Second valve, two-way pipeline also is provided with tank bottom and top, and installs the 3rd valve, the 4th valve respectively；Agitator tank bottom
Portion's pipeline merges to form the first woven hose with tank bottom pipeline in rear end, and delivery pump is provided with the first drain pipe；Stirring
Tank top pipeline merges to form the second woven hose with tank top pipeline in rear end, and the 5th valve is provided with the second woven hose
Door, the first woven hose and the second woven hose merge to form total woven hose in rear end, and the 6th valve is provided with total woven hose.
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| CN201711062564.8A CN107882533A (en) | 2017-11-02 | 2017-11-02 | The method that the uniform output of horizontal segment is realized using the solid particle in oilfield sewage |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711062564.8A CN107882533A (en) | 2017-11-02 | 2017-11-02 | The method that the uniform output of horizontal segment is realized using the solid particle in oilfield sewage |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5526879A (en) * | 1992-06-22 | 1996-06-18 | Solinst Canada Limited | Introduction of particulate material into a borehole |
| CN105347609A (en) * | 2015-10-23 | 2016-02-24 | 中国石油化工股份有限公司 | Drilling wastes recycling method |
| CN105275440A (en) * | 2015-11-02 | 2016-01-27 | 中庆能源工程技术有限公司 | Oilfield profile and drive control blocking system, method and slug composition for blocking |
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| 贾晓飞等: "孔喉尺度弹性调驱微球与储层匹配关系理论研究", 《石油钻探技术》 * |
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