CN107652953A - A kind of slug formula chemical water shutoff agent of resisting high temperature, high salt - Google Patents
A kind of slug formula chemical water shutoff agent of resisting high temperature, high salt Download PDFInfo
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- CN107652953A CN107652953A CN201710820588.9A CN201710820588A CN107652953A CN 107652953 A CN107652953 A CN 107652953A CN 201710820588 A CN201710820588 A CN 201710820588A CN 107652953 A CN107652953 A CN 107652953A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
- C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/512—Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/516—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls characterised by their form or by the form of their components, e.g. encapsulated material
Abstract
The present invention provides a kind of slug formula chemical water shutoff agent of resisting high temperature, high salt.The water shutoff agent includes 40% 50% the first slug, 40% 50% the second slug and 10% 20% the 3rd slug；First slug includes 36 parts of resin, 8 15 parts of ferrous aluminate mineral, 0.3 1 parts of crosslinking agent and 80 90 parts of water；Second slug includes 35 45 parts of temperature control gel rubber and 46 parts of anti-phase gel；3rd slug includes 15 25 parts of anti-phase gel, 2.5 4.7 parts of dispersant, 35 parts of retarder and 65 78 parts of water；Temperature control gel rubber includes 10 15 parts of water-soluble multinuclear hydroxy metal polymer, 13 parts of amido class compound, 0.5 1 parts of carbonate mineral and 83 89 parts of water.The chemical water shutoff agent has high thixotropic energy, fracture hole can be blocked, using organic method for being combined more slug injections with inorganic blocking agent composition, it is good with high temperature resistant, resistance to high salinity, heat endurance, the high pressure resistant stratum water of plugged zone of formation washes away for a long time, can meet the needs of huge discharge produces after blocking.
Description
Technical field
The invention belongs to oil field development technical field, it is related to a kind of slug formula chemical water shutoff agent of resisting high temperature, high salt.
Background technology
Worked for the desk research of Used in High-temperature Reservoirs it has been reported that Canadian Navratil et al. uses Acacia extract
The gel that can be applied in high-temperature stratum closure has been mixed to prepare with sulfonation tannin extract and formaldehyde and phenol etc..Liu is into outstanding person et al. profit
The blocking agent that can be used for high temperature has been made with valonea extract.But successful water plugging and profile controlling field test has no report.French petroleum
Research institute (IFP) has developed a kind of micro gel with high injectability, and micro gel is by polymer and lactic acid mistake group
Into under fixed shear speed, polymer and second agent (into colloid) form micro gel scattered one by one.Control micro gel
Size and characterization of adsorption, but still in the desk research stage.Zhu Huai rivers et al. by sulfonating reaction larch bark list
Sulfonic group is introduced in peaceful molecule so that modified mimosa extract has more preferable water dispersible and salt tolerance, and the water shutoff agent being made into is molten
Fluid viscosity is relatively low.The gelation time 14-82h at 100-140 DEG C, one clear water isolation slug of man-hour requirement is applied, it is so not easily-controllable
System.The technology also rests on the desk research stage at present, and actual filed application also needs a process.The cost of other mimosa extract compares
Height, this is also a critically important restraining factors.Existing techniques of chemical water plugging is used to will appear from chemistry during 90 DEG C of ＞ oil reservoir
The heat endurance of agent, long-term high pressure can not be reached and wash away institute by general injection not possessing selective shut-off ability and gel strength
Need intensity and occur closure do not live the problems such as.Polymerization species blocking agent is higher than after 120 DEG C in temperature can not form stable gel；
Particulate species blocking agent is easily counter to arrange；Anti-phase gel-like blocking agent is difficult to heavy dose of injection.The oilwell water shutoff of high temperature and high salt oil deposit will face as
Lower problem：(1) blocking agent is required steady in a long-term under high temperature and high salt environment；(2) formed and blocked even in oil well water layer, plugged zone one
As for the relatively low material of intensity, the long-term of high pressure formation water can not be resisted and washed away, make plugging material destroyed and counter spue is come.
The content of the invention
In order to solve water shutoff agent in high temperature and high salt environment for a long time stablize, antiscour the problems such as, present invention aims at carry
For a kind of slug formula chemical water shutoff agent of resisting high temperature, high salt, it has the function that selective shut-off water layer, being capable of high temperature resistant, resistance to height
Salinity simultaneously has long-term thermal stability, and antiscour, cost is low, and high temperature and high salt oil deposit oil recovery later stage oil well is reduced so as to reach
Moisture content, increase oil production, reduce the purpose of production cost.
The purpose of the present invention is achieved by the following technical programs：
On the one hand, the present invention provides a kind of slug formula chemical water shutoff agent of resisting high temperature, high salt, using water shutoff agent weight as 100%
Meter, it includes the 3rd slug of 40%-50% the first slug, 40%-50% the second slug and 10%-20%；
In parts by weight, first slug includes the resin of 3-6 parts, the ferrous aluminate mineral of 8-15 parts, 0.3-1 parts
Crosslinking agent and the water of 80-90 parts；
Second slug includes the temperature control gel rubber of 35-45 parts and the anti-phase gel of 4-6 parts；
3rd slug include the anti-phase gel of 15-25 parts, the dispersant of 2.5-4.7 parts, 3-5 parts retarder and
The water of 65-78 parts；
The temperature control gel rubber includes the water-soluble multinuclear hydroxy metal polymer, the amido class chemical combination of 1-3 parts of 10-15 parts
The water of thing, the carbonate mineral of 0.5-1 parts and 83-89 parts；
The anti-phase gel is nitrile compounds.
In above-mentioned slug formula chemical water shutoff agent, it is preferable that in the slug formula chemical water shutoff agent, the anti-phase gel contains admittedly
Measure as 10%-20%.
In above-mentioned slug formula chemical water shutoff agent, it is preferable that the resin can include phenolic resin and/or amino resins.
In above-mentioned slug formula chemical water shutoff agent, it is preferable that the ferrous aluminate mineral can include ferrous sulfate, sulfuric acid
The combination of one or more mineral in aluminium, ferric aluminium sulfate, ferric phosphate aluminium and ferrosilite aluminium etc..
In above-mentioned slug formula chemical water shutoff agent, it is preferable that the crosslinking agent can include gypsum, high sulfur content aluminum ore powder
End, MgO powder, SiO2Powder, quick lime powder, SA clinkers powder, Al2O3-SiO2Powder, ZrO2-TiO2Powder, calcium silicates ore deposit
Thing, ferric sulfate and selected from manganese, magnesium, zinc, sodium, potassium mineral in the mineral of more than three kinds of mineral Jing Guo high temperature grinding etc. one
Kind or a variety of combinations.
In above-mentioned slug formula chemical water shutoff agent, it is preferable that the water-soluble multinuclear hydroxy metal polymer can include more
One or more combinations in core iron carbonyl, multinuclear hydroxy Al, multinuclear hydroxyl pick and multinuclear hydroxyl germanium etc..
In above-mentioned slug formula chemical water shutoff agent, it is preferable that the amido class compound can include thiocarbamide, six methines four
Amine and containing one or more combinations in alkamine etc..
In above-mentioned slug formula chemical water shutoff agent, it is preferable that the carbonate mineral can include calcium carbonate, potassium carbonate, carbon
One or more combinations in sour sodium, magnesium carbonate, aluminium carbonate and ferric carbonate etc..
In above-mentioned slug formula chemical water shutoff agent, it is preferable that the nitrile compounds can include butyronitrile, acrylonitrile, methylene
One or more combinations in nitrile and butene nitrile etc..
In above-mentioned slug formula chemical water shutoff agent, it is preferable that the dispersant can include alcohol, acetone, ether, butyl ether and
One or more combinations in ethene etc..
In above-mentioned slug formula chemical water shutoff agent, it is preferable that the retarder can include Boratex and/or sodium metasilicate.
In above-mentioned slug formula chemical water shutoff agent, the first slug has high thixotropic water plugging property, and its performance follows following original
Then：(1) there is certain denseness not influence to inject again.It is bigger according to fluid consistency, preferably enter the small high seepage flow of flow resistance
The principle of passage, there is high thixotropic behavior, ensure that its it is longitudinal in seam, hole, hole be full of, reduce leakage；(2) have certain
Granularity, so with being selectively entered in relatively wide hole, and ensure there is preferable presence；(3) what is formed is solidifying
Glue has higher-strength, and having prevents the leakage of follow-up blocking agent from acting on.The first slug gel is not sent out more than 165 DEG C of next years
Raw aging phenomenon, intensity are constant.
In above-mentioned slug formula chemical water shutoff agent, the second slug is made up of temperature control gel rubber and anti-phase gel.Wherein temperature control gel rubber
With high temperature resistant, high salt.Strong adaptability；System tool will not consolidate in flow regime, could only trigger gelling at high temperature, into
Colloid is a kind of high thixotropic gelinite, can be driven after more than certain pressure difference, there is very good adhesion on rock,
Gelation time does not influence the requirement of safe construction；Colloid viscosity is low, easily pumping, meet deep water blockoff and hypotonicity stratum and
Crack is efficiently entering, and is combined with anti-phase gel, and administering water outlet crack (especially microscopic checks), there is spy to arrive part；It can solve
It is stifled, without construction risk.The mode on the second slug injection stratum can be mixed first on ground with the first slug, be injected into and set from pit shaft
In the water blockoff stratum of meter.Its viscosity before reactions is very low, is easily injected into crack, polymerization crosslinking reaction, by colloidal sol
Form not flowable gelinite.
In above-mentioned slug formula chemical water shutoff agent, the 3rd slug is that anti-phase gel compounds dispersant and retarder, and it is as envelope
Mouth slug, applicable temperature range are 20-170 DEG C.In chemical water shutoff agent of the present invention, the anti-phase gel of 20% anti-phase gel composition
Its initial apparent viscosity of slurry is about 10mPas.Core experiment result 30mm can hold anti-pressure of telling and be more than 20MPa, be formed high
The sealing layer of intensity, ensure that plugged zone will not be reversely pushed out by high-pressure fluid.It is based on simultaneously but blocks cave type, crack-hole type
Oil reservoir is mixed, because water shutoff agent can largely enter in fracture hole, hole, does not reach and is effectively resident, have impact on the effect of closure.Therefore
The water shutoff agent can use as main body water shutoff material, for cave type, the crack-high temperature of hole type mixing oil reservoir development, high mineralization
Spend the water blockoff of ultradeep well oil reservoir, it is important to water shutoff agent can be detained in fracture hole, forms sedimentation, is unlikely to leakage to ground
In layer, plugging action is lost.General water shutoff agent is difficult to be detained in the earth formation.Using anti-phase gel, water shutoff agent can be played
Between synergy, improve water plugging effect need increase water shutoff agent resident effect.
On the other hand, the present invention also provides the method for implanting of above-mentioned slug formula chemical water shutoff agent, and it is noted into oil reservoir successively
Enter the first slug, the second slug and the 3rd slug.Wherein the first slug accounts for the 40%-60% of total injection, and it possesses high thixotroping
Performance, being completely filled with for fracture hole can be realized, while have the function that temporarily to block up oil reservoir, avoid the water blockoff of the second slug being subsequently implanted into
The leakage of agent；The characteristics of second slug is low viscosity, easily injects, can enter microscopic checks and hole, at the formation temperature can shape
Into the gel of high slumpability, there can be preferable presence in the earth formation with being used in combination for anti-phase gel, account for total injection
30%-40%, the gel with the good resisting high temperature, high salt of high temperature resistant, heat endurance can be formed, so as to obtain stable closure
Barrier.Thereafter the 3rd slug is compounding dispersant and retarder etc. based on anti-phase gel, as sealing compound, improves closure principal piece
The intensity of plug, account for the 10%-20% of total injection.
The present invention uses the chemical water shutoff agent of three kinds of slug forms, and by injecting the first slug, it possesses high thixotropic energy,
Fracture hole can be blocked, avoids the injection of follow-up slug from largely missing, implementing chemical water shutoff for fracture-pore reservoir lays the foundation；Using
It is organic with inorganic blocking agent composition be combined and more slugs injection compound method for blocking, have selective shut-off water layer, resistance to height
Gentle resistance to high salinity, the characteristics of heat endurance is good, and the plugged zone formed have needed for high pressure resistant stratum water washes away for a long time
Intensity, can meet closure after huge discharge produce the needs of.
Embodiment
In order to which technical characteristic, purpose and the beneficial effect of the present invention is more clearly understood, now to the skill of the present invention
Art scheme carry out it is described further below, but it is not intended that to the present invention can practical range restriction.
Embodiment 1
The present embodiment provides a kind of slug formula chemical water shutoff agent of resisting high temperature, high salt, is counted using water shutoff agent weight as 100%, its
Including 45% the first slug, 40% the second slug and 15% the 3rd slug；
In parts by weight, first slug include 4 parts phenolic resin, 10 parts of ferric aluminium sulfate, 0.4 part of gypsum and
80 parts of water；
Second slug includes 35 parts of temperature control gel rubber and 5 parts of anti-phase gel；
3rd slug includes 15 parts of anti-phase gel, 2.5 parts of alcohol, 3 parts of Boratex and 65 parts of water；
The temperature control gel rubber includes 10 parts of multinuclear iron carbonyl, 1 part of thiocarbamide, 0.5 part of calcium carbonate and 83 parts of water；
The anti-phase gel is butyronitrile.
The present embodiment also provides the method for implanting of above-mentioned slug formula chemical water shutoff agent, its injection 45% the into oil reservoir successively
One slug, the 40% the second slug and 15% the 3rd slugs.
Embodiment 2
The present embodiment provides a kind of slug formula chemical water shutoff agent of resisting high temperature, high salt, is counted using water shutoff agent weight as 100%, its
Including 40% the first slug, 45% the second slug and 15% the 3rd slug；
In parts by weight, first slug includes 3 parts of amino resins, 8 parts of ferric phosphate aluminium, 0.3 part of MgO powder
With 80 parts of water；
Second slug includes 40 parts of temperature control gel rubber and 5 parts of anti-phase gel；
3rd slug includes 20 parts of anti-phase gel, 3 parts of alcohol, 4 parts of sodium metasilicate and 70 parts of water；
The temperature control gel rubber includes 15 parts of multinuclear hydroxy Al, 2 parts of hexamethylenetetramine and 0.7 part of potassium carbonate and 89
The water of part；
The anti-phase gel is methylene nitrile.
The present embodiment also provides the method for implanting of above-mentioned slug formula chemical water shutoff agent, its injection 40% the into oil reservoir successively
One slug, the 45% the second slug and 15% the 3rd slugs.
Embodiment 3
The present embodiment provides a kind of slug formula chemical water shutoff agent of resisting high temperature, high salt, is counted using water shutoff agent weight as 100%, its
Including 50% the first slug, 40% the second slug and 10% the 3rd slug；
In parts by weight, first slug includes 6 parts of amino resins, 15 parts of ferrosilite aluminium, 1 part of SiO2Powder
With 85 parts of water；
Second slug includes 45 parts of temperature control gel rubber and 5 parts of anti-phase gel；
3rd slug includes 25 parts of anti-phase gel, 4.7 parts of acetone, 3 parts of Boratex and 78 parts of water；
The temperature control gel rubber includes 12 parts of multinuclear hydroxyl pick, 3 parts of hexamethylenetetramine and 1 part of magnesium carbonate and 83 parts
Water；
The anti-phase gel is butene nitrile.
The present embodiment also provides the method for implanting of above-mentioned slug formula chemical water shutoff agent, its injection 50% the into oil reservoir successively
One slug, the 40% the second slug and 10% the 3rd slugs.
Embodiment 4
The present embodiment provides a kind of slug formula chemical water shutoff agent of resisting high temperature, high salt, is counted using water shutoff agent weight as 100%, its
Including 40% the first slug, 40% the second slug and 20% the 3rd slug；
In parts by weight, first slug includes 3 parts of phenolic resin, 15 parts of aluminum sulfate, 0.5 part of calcium lime powder
End and 90 parts of water；
Second slug includes 35 parts of temperature control gel rubber and 5 parts of anti-phase gel；
3rd slug includes 20 parts of anti-phase gel, 3 parts of butyl ether, 5 parts of sodium metasilicate and 70 parts of water；
The temperature control gel rubber includes 15 parts of multinuclear hydroxyl germanium, 1 part of thiocarbamide and 0.5 part of aluminium carbonate and 85 parts of water；
The anti-phase gel is methylene nitrile.
The present embodiment also provides the method for implanting of above-mentioned slug formula chemical water shutoff agent, its injection 40% the into oil reservoir successively
One slug, the 40% the second slug and 20% the 3rd slugs.
Embodiment 5
The present embodiment provides the first slug water shutoff agent sealing characteristics evaluation experimental in above-described embodiment 1.
Embodiment is：Laboratory core closure experiment at 165 DEG C, to cementing quartz sand free from flaw cylinder rock core and
The cementing square rock core in quartz sand crack has carried out closure experiment, is tested by water plugging rate determination experiment method：
(1) the first slug water shutoff agent formula is：10 parts of ferric aluminium sulfate, phenolic resin：4 parts, MgO powder：0.4 part, stir
Mix；
(2) rock core makes：Using the sand of different meshes, water phase permeability is surveyed after populated；
(3) placed after injecting water shutoff agent in 165 DEG C of insulating boxs, plastic 72h, survey waterflood permeability；
(4) reservoir core plugging rate is calculated according to Darcy's law；
(5) plugging rate and breakthrough pressure of three kinds of different permeability cores are tested using 3%KCl displacing fluids.Experimental data
It see the table below shown in 1.
Table 1
From the experimental result of table 1：It is 1.13-1.52MPa/cm to measure breakthrough pressure after constant temperature 3d at 165 DEG C, crack
Effectively blocked, mean permeability is by 138.6 × 10-3μm2It is down to 2.62 × 10-3μm2, crack rock core is greatly reduced
Percolation ability.
Embodiment 6
The present embodiment is provided at 165 DEG C, after the second slug of injection (temperature control gel rubber+anti-phase gel) and the 3rd slug, to glue
The closure experiment of calculus sand rock core.Experimental result is as shown in table 2 below and table 3.
Second slug includes 35 parts of temperature control gel rubber and 5 parts of anti-phase gel, and the anti-phase gel is butyronitrile；
The temperature control gel rubber includes 10 parts of multinuclear iron carbonyl, 1 part of thiocarbamide, 0.5 part of calcium carbonate and 83 parts of water.
3rd slug includes 15 parts of anti-phase gel, 2.5 parts of alcohol, 3 parts of Boratex and 65 parts of water.
Table 2
Table 3
From the experimental result of table 2：It is 0.221-0.415MPa/cm to measure breakthrough pressure after constant temperature 3d at 165 DEG C, is split
Effective closure is sewed, mean permeability is by 2.73 × 10-3μm2It is down to 0.121 × 10-3μm2, crack rock core is greatly reduced
Percolation ability.
In summary, the present invention is using the chemical water shutoff agent of three kinds of slug forms, and by injecting the first slug, it possesses height
Thixotropic property, fracture hole can be blocked, avoid the injection of follow-up slug from largely missing, implemented chemical water shutoff for fracture-pore reservoir and establish
Basis；Using organic with the compound method for blocking that inorganic blocking agent composition is combined and more slugs inject, there is selective shut-off
The characteristics of water layer, good high temperature resistant and resistance to high salinity, heat endurance, and the plugged zone formed has high pressure resistant stratum water long-term
Required intensity is washed away, can meet the needs of huge discharge produces after blocking.
Claims (10)
1. a kind of slug formula chemical water shutoff agent of resisting high temperature, high salt, is counted, it includes 40%-50% using water shutoff agent weight as 100%
The first slug, 40%-50% the second slug and 10%-20% the 3rd slug；
In parts by weight, the resin of first slug including 3-6 parts, 8-15 parts ferrous aluminate mineral, 0.3-1 parts crosslinking
Agent and the water of 80-90 parts；
Second slug includes the temperature control gel rubber of 35-45 parts and the anti-phase gel of 4-6 parts；
3rd slug includes the anti-phase gel of 15-25 parts, the dispersant of 2.5-4.7 parts, the retarder and 65-78 of 3-5 parts
The water of part；
The water-soluble multinuclear hydroxy metal polymer of the temperature control gel rubber including 10-15 parts, the amido class compound of 1-3 parts,
The carbonate mineral of 0.5-1 parts and the water of 83-89 parts；
The anti-phase gel is nitrile compounds.
2. slug formula chemical water shutoff agent according to claim 1, it is characterised in that：In the slug formula chemical water shutoff agent,
The anti-phase gel solid content is 10%-20%.
3. slug formula chemical water shutoff agent according to claim 1, it is characterised in that：The resin include phenolic resin and/
Or amino resins.
4. slug formula chemical water shutoff agent according to claim 1, it is characterised in that：The ferrous aluminate mineral include sulfuric acid
One or more combinations in ferrous iron, aluminum sulfate, ferric aluminium sulfate, ferric phosphate aluminium and ferrosilite aluminium.
5. slug formula chemical water shutoff agent according to claim 1, it is characterised in that：The crosslinking agent includes gypsum, high-sulfur
Measure aluminum ore powder, MgO powder, SiO2Powder, quick lime powder, SA clinkers powder, Al2O3-SiO2Powder, ZrO2-TiO2Powder
End, calcium silicates mineral, ferric sulfate and selected from manganese, magnesium, zinc, sodium, potassium mineral in more than three kinds of mineral by high temperature grinding
One or more combinations in mineral.
6. slug formula chemical water shutoff agent according to claim 1, it is characterised in that：The water-soluble multinuclear hydroxy metal gathers
Compound includes one or more combinations in multinuclear iron carbonyl, multinuclear hydroxy Al, multinuclear hydroxyl pick and multinuclear hydroxyl germanium.
7. slug formula chemical water shutoff agent according to claim 1, it is characterised in that：The amido class compound includes sulphur
Urea, hexamethylenetetramine and containing one or more combinations in alkamine.
8. slug formula chemical water shutoff agent according to claim 1, it is characterised in that：The carbonate mineral includes carbonic acid
One or more combinations in calcium, potassium carbonate, sodium carbonate, magnesium carbonate, aluminium carbonate and ferric carbonate.
9. slug formula chemical water shutoff agent according to claim 1, it is characterised in that：The nitrile compounds include butyronitrile,
One or more combinations in acrylonitrile, methylene nitrile and butene nitrile；
Preferably, the dispersant includes one or more combinations in alcohol, acetone, ether, butyl ether and ethene；
Preferably, the retarder includes Boratex and/or sodium metasilicate.
10. the method for implanting of any one of the claim 1-9 slug formula chemical water shutoff agents, it is characterised in that：The method for implanting
For the first slug, the second slug and the 3rd slug are injected into oil reservoir successively.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109777383A (en) * | 2019-03-18 | 2019-05-21 | 四川捷贝通能源科技有限公司 | A kind of multicore microballoon selective water shutoff agent and preparation method thereof |
| CN110205109A (en) * | 2019-07-10 | 2019-09-06 | 中海石油(中国)有限公司秦皇岛32-6作业公司 | A kind of low-viscosity gel water shutoff agent of resisting high temperature, high salt |
| CN110259410A (en) * | 2019-06-28 | 2019-09-20 | 山东德仕石油装备有限公司 | A kind of method that high-water-cut oil-producing well fixed tubular column realizes water blockoff |
| CN111978942A (en) * | 2020-09-22 | 2020-11-24 | 西南石油大学 | Thermosetting water plugging system for high-temperature oil and gas field |
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| CN114427378A (en) * | 2020-09-21 | 2022-05-03 | 中国石油化工股份有限公司 | Method for designing selective water plugging slug of solution-breaking oil reservoir |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109777383A (en) * | 2019-03-18 | 2019-05-21 | 四川捷贝通能源科技有限公司 | A kind of multicore microballoon selective water shutoff agent and preparation method thereof |
| CN110259410A (en) * | 2019-06-28 | 2019-09-20 | 山东德仕石油装备有限公司 | A kind of method that high-water-cut oil-producing well fixed tubular column realizes water blockoff |
| CN110205109A (en) * | 2019-07-10 | 2019-09-06 | 中海石油(中国)有限公司秦皇岛32-6作业公司 | A kind of low-viscosity gel water shutoff agent of resisting high temperature, high salt |
| CN114427378A (en) * | 2020-09-21 | 2022-05-03 | 中国石油化工股份有限公司 | Method for designing selective water plugging slug of solution-breaking oil reservoir |
| CN114427378B (en) * | 2020-09-21 | 2024-03-15 | 中国石油化工股份有限公司 | Design method for selective water shutoff slug of disconnected solution oil reservoir |
| CN111978942A (en) * | 2020-09-22 | 2020-11-24 | 西南石油大学 | Thermosetting water plugging system for high-temperature oil and gas field |
| CN113861902A (en) * | 2021-09-15 | 2021-12-31 | 佛山市天禄智能装备科技有限公司 | Leakage-proof glue for rotary kiln and preparation method thereof |
| CN113861902B (en) * | 2021-09-15 | 2024-02-13 | 佛山市天禄智能装备科技有限公司 | Leakage-proof glue for rotary kiln and preparation method thereof |
| CN114876432A (en) * | 2022-05-26 | 2022-08-09 | 燕山大学 | Fractured oil-gas reservoir hot fluid mixing and injecting in-situ residual oil water plugging process and device |
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Application publication date: 20180202 |