CN108659799A - Drilling fluid anti-collapse sealing agent cation modified asphalt and preparation method thereof - Google Patents
Drilling fluid anti-collapse sealing agent cation modified asphalt and preparation method thereof Download PDFInfo
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- CN108659799A CN108659799A CN201810512229.1A CN201810512229A CN108659799A CN 108659799 A CN108659799 A CN 108659799A CN 201810512229 A CN201810512229 A CN 201810512229A CN 108659799 A CN108659799 A CN 108659799A
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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
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
- C09K8/035—Organic additives
-
- 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
- C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
- C09K8/426—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells for plugging
-
- 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
- C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
- C09K8/44—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing organic binders only
-
- 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
- C09K8/5083—Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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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
- C09K8/5086—Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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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
- C09K8/514—Compositions based on water or polar solvents containing organic compounds macromolecular compounds of natural origin, e.g. polysaccharides, cellulose
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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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/12—Swell inhibition, i.e. using additives to drilling or well treatment fluids for inhibiting clay or shale swelling or disintegrating
Abstract
A kind of drilling fluid anti-collapse sealing agent cation modified asphalt and preparation method thereof, the modified pitch is made of following raw materials：Asphalt powder, high boiling point solvent oil, modifying agent, surfactant, antiplastering agent.Modifying agent is one or both of oil-soluble phenolic resin, Petropols；Surfactant is one or both of hexadecyltrimethylammonium chloride, cetyl trimethylammonium bromide.Preparation method：High boiling point solvent oil and asphalt powder are added in reaction kettle, material in reactor is heated up, is stirred, so that asphalt powder is dissolved, obtains pitch glue；Surfactant and modifying agent are added in pitch glue, reacted at a certain temperature, colloid is obtained after reaction；Gel-like product is obtained after antiplastering agent is added；By cooling down to solidify, crush to get.The present invention is functional, it can inhibit hole collapse, effectively avoid or reduce the generation of drilling complexity accident, improve drilling quality and efficiency.
Description
Technical field
The present invention relates to a kind of assistant for drilling petroleum well, the cation-modified drip of anti-collapse sealing agent of specifically a kind of drilling fluid
Blueness, the invention further relates to the drilling fluid preparation methods of anti-collapse sealing agent cation modified asphalt.
Background technology
Drilling fluid is fluid important in drilling engineering, and the quality of performance is directly related to the quality of drilling quality, more
Play the role of to the oil recovery efficiency height in an oil field vital.Anti-collapse sealing agent type currently on the market is various, but
Often it cannot efficiently be had both with environmental protection.The currently used anti-collapse sealing agent that can meet environmental requirement, but its performance has one
Fixed deficiency, it is difficult to effective anti-collapse closure, it is difficult to ensure the efficient performance of drilling fluid.
Inventor retrieves following Patents documents：CN103265816A discloses a kind of drilling fluid low softening point breast
Change pitch and preparation method thereof, which contains by weight：25~50 parts of slurry oil, 10~35 parts of solvent naphtha, nonionic
1~4 part of surfactant, 1~4 part of cationic surfactant, C2~C430~40 parts of 0~4 part of alcohol and water.Preparation method
It is that solvent naphtha and nonionic surfactant are added in slurry oil, heating stirring is uniform to obtain slurry oil mixed liquor；Then by water, C2~
C4Alcohol and cationic surfactant Hybrid Heating, which are stirred to cationic surfactant, to be dissolved, and slurry oil mixed liquor is added,
It is stirred at 45~90 DEG C up to low softening point emulsified asphalt.CN1831042A discloses a kind of low fluorescence and sinking-proof type asphalt and its manufacture
Method, it is made of asphalt, solvent naphtha, liquid sulphur trioxide, chlorosulfonic acid, nitric acid and caustic soda, is less than 0.1MPa in pressure
With sequentially added in the reaction kettle of 20-80 DEG C of temperature 100-300%, 20-90% of asphalt weight, 20-90%,
Solvent naphtha, liquid sulphur trioxide, chlorosulfonic acid, nitric acid and the caustic soda of 20-90% and 50-150%, last drying and grinding form.
CN105505345A discloses a kind of drilling fluid anti-collapse sealing agent and preparation method thereof, and preparation method includes the following steps：
The preparation method of the sealing agent includes the following steps：1, sulphite and/or bisulfites are added to the water and are completely dissolved, obtained
To solution A, then dimethylamine, aldehyde material are added into solution A, heating makes its reaction, obtains addition compound product；2, by phenolic material
Matter, aldehyde material mixing, heating make its reaction, obtain solution B；3, alkali catalyst is added into solution B, obtains solution C；4、
Addition compound product described in step 1, which is added in the solution C that step 3 obtains, makes it react, after reaction, through drying
Afterwards, the anti-collapse sealing agent is obtained.CN106318345A discloses a kind of drilling fluid low fluorescence and sinking-proof type sealing agent and its preparation
Method, component are constituted according to quality and 100%：Paraffin 45~60%, surfactant 4~8%, stabilizer 5~10% remove
Oxygen agent 0.5~2%, antifoaming agent 0.5~2%, surplus are solvent.CN105176501A disclose a kind of drilling fluid sealing agent and
Preparation method, the drilling fluid sealing agent is by heat responsive deformation hydrophobic material, thermosetting property hydrophobic material, rigid solid granular material
Material, vegetable oil and solvent naphtha composition.Preparation method includes the heat of the mixture addition cooling of thermosetting property hydrophobic material and vegetable oil
It in quick deformation hydrophobic material, is sufficiently stirred, rigid solid granular materials and solvent naphtha is added, stirs evenly to obtain the final product.
Above-mentioned technology segment is not strong, degradable using raw material alkalinity, easily to soil reclamation environmental pollution.And production technology
Complexity, it is of high cost.The above technology is kept away for how to make drilling fluid be accomplished with anti-collapse sealing agent fully to inhibit hole collapse
Exempt from drilling complexity accident, improves drilling quality and efficiency, while there is environment-friendly function, do not provide specific guidance program.
Invention content
Technical problem to be solved by the present invention lies in provide a kind of drilling fluid cation-modified drip of anti-collapse sealing agent
Blueness, it functional can inhibit hole collapse, the generation of drilling complexity accident can be effectively avoided or reduced, to carry
High drilling quality and efficiency, while there is environment-friendly function, and the skill of the wider anti-collapse sealing agent of use scope in the market can be reached
Art requirement.
For this purpose, another technical problem to be solved by this invention is, provide a kind of above-mentioned drilling fluid anti-collapse sealing agent
The preparation method of cation modified asphalt.
In order to solve the above technical problems, the technical solution adopted by the present invention is as follows：
The anti-collapse sealing agent cation modified asphalt of a kind of drilling fluid, it is characterised in that it is by following weight proportioning (weight
Measure number, mass fraction) raw material made of：
The modifying agent be oil-soluble phenolic resin, one kind (raw material) in Petropols or two kinds (raw material) group
It closes, its proportioning is arbitrary when two kinds (raw material) combines；The surfactant is hexadecyltrimethylammonium chloride, 16
The combination of one kind (raw material) or two kinds (raw material) in alkyl trimethyl ammonium bromide, its proportioning is arbitrary when two kinds (raw material) combines
's；The antiplastering agent is polyanion cellulose, sanlose (i.e. sodium carboxymethylcellulose), pre-gelatinized starch
In one kind (raw material) or several (raw materials) combination, several (raw materials) combine when its proportioning be arbitrary.It is alternatively described
Modifying agent be composition (mixing that oil-soluble phenolic resin, one or both of Petropols are formed with arbitrary proportion
Object)；The surfactant is one or both of hexadecyltrimethylammonium chloride, cetyl trimethylammonium bromide
The composition (mixture) formed with arbitrary proportion.The antiplastering agent be polyanion cellulose, sanlose,
The composition (mixture) that one or more of pre-gelatinized starch is formed with arbitrary proportion.
The drilling fluid is comprised the technical steps that with the preparation method of anti-collapse sealing agent cation modified asphalt：1. will
25 parts~40 parts of high boiling point solvent oil and 45 parts~65 parts asphalt powder are added in reaction kettle, and material in reactor is heated up
To 100 DEG C~120 DEG C, stirring makes asphalt powder dissolve, obtains (obtained) pitch glue；2. by 3 parts~8 parts surface-actives
Agent and 5 parts~10 parts modifying agent are added to step 1. in pitch glue obtained, react 60min at a temperature of 80 DEG C~100 DEG C
~90min obtains colloid after reaction；3. controlling the colloid temperature obtained after reaction at 70 DEG C~90 DEG C, it is added 1 part~3 parts
Gel-like product is obtained after antiplastering agent；4. 3. gel-like product that step is obtained by cooling down to solidify, crush to get
To the anti-collapse sealing agent cation modified asphalt of the drilling fluid.
In above-mentioned technical proposal, preferred technical solution can be that the drilling fluid is changed with anti-collapse sealing agent cation
Property pitch is made of the raw material that is matched following weight：
The modifying agent is the combination (composition) of two kinds of oil-soluble phenolic resin, Petropols raw materials, oil-soluble phenol
The weight ratio of urea formaldehyde and Petropols is 1: 2；The surfactant is hexadecyltrimethylammonium chloride；Described
Antiplastering agent is the combination (composition) of polyanion cellulose and pre-gelatinized starch, polyanion cellulose and pre-gelatinized starch
Weight ratio is 1: 0.5.
The drilling fluid is comprised the technical steps that with the preparation method of anti-collapse sealing agent cation modified asphalt：1. will
40 parts of high boiling point solvent oil and 48 parts of asphalt powder are added in reaction kettle, and material in reactor is warming up to 105 DEG C, is stirred
It mixes, so that asphalt powder is dissolved, obtain pitch glue；2. by 7 parts of surfactants and 3 parts of oil-soluble phenolic resins, 6 parts of oil
Resin is added to step 1. in pitch glue obtained, and 80min is reacted at a temperature of 90 DEG C, colloid is obtained after reaction；3. by anti-
Should after obtained colloid temperature control at 75 DEG C, obtain gel after 2 parts of polyanion celluloses, 1 part of pre-gelatinized starch is added
Product；4. 3. gel-like product that step is obtained, to solidifying, crushes anti-to get being used to the drilling fluid by cooling down
Collapse sealing agent cation modified asphalt.
In above-mentioned technical proposal, the preferred technical solution may also be that the drilling fluid anti-collapse sealing agent cation
Modified pitch is made of the raw material that is matched following weight：
The modifying agent is Petropols；The surfactant is hexadecyltrimethylammonium chloride, hexadecane
The combination (composition) of two kinds of raw materials of base trimethylammonium bromide, hexadecyltrimethylammonium chloride and cetyl trimethyl bromination
The weight ratio of ammonium is 1: 1；The antiplastering agent is pre-gelatinized starch.
The drilling fluid is comprised the technical steps that with the preparation method of anti-collapse sealing agent cation modified asphalt：1. will
33 parts of high boiling point solvent oil and 55 parts of asphalt powder are added in reaction kettle, and material in reactor is warming up to 110 DEG C, is stirred
It mixes, so that asphalt powder is dissolved, obtain pitch glue；2. by 2.5 parts of hexadecyltrimethylammonium chlorides, 2.5 parts of cetyls
Trimethylammonium bromide and 7 parts of modifying agent are added to step 1. in pitch glue obtained, react 70min at a temperature of 85 DEG C, instead
Should after obtain colloid；3. controlling the colloid temperature obtained after reaction at 90 DEG C, gel production is obtained after 2 portions of antiplastering agents are added
Object；4. 3. gel-like product that step is obtained by cooling down to solidifying, crush to get to the drilling fluid with anti-collapse
Sealing agent cation modified asphalt.
In above-mentioned technical proposal, the preferred technical solution may also be that the drilling fluid anti-collapse sealing agent cation
Modified pitch is made of the raw material that is matched following weight：
The modifying agent is the combination (composition) of two kinds of oil-soluble phenolic resin, Petropols raw materials, oil-soluble phenol
The weight ratio of urea formaldehyde and Petropols is 1: 1.5；The surfactant is cetyl trimethylammonium bromide；It is described
Antiplastering agent be sanlose and two kinds of raw materials of pre-gelatinized starch combination (composition), sanlose
Weight ratio with pre-gelatinized starch is 1: 3.
The drilling fluid is comprised the technical steps that with the preparation method of anti-collapse sealing agent cation modified asphalt：1. will
26 parts of high boiling point solvent oil and 62 parts of asphalt powder are added in reaction kettle, and material in reactor is warming up to 120 DEG C, is stirred
It mixes, so that asphalt powder is dissolved, obtain pitch glue；2. by 3 parts of surfactants and 2 parts of oil-soluble phenolic resins, 3 parts of oil
Resin is added to step 1. in pitch glue obtained, and 90min is reacted at a temperature of 100 DEG C, colloid is obtained after reaction；3. by anti-
Should after obtained colloid temperature control at 80 DEG C, be added after 0.25 part of sanlose, 0.75 part of pre-gelatinized starch
To gel-like product；4. 3. gel-like product that step is obtained, to solidifying, crushes to get to the brill by cooling down
The anti-collapse sealing agent cation modified asphalt of well liquid.
The preparation method of the present invention includes the following steps：Prepare pitch glue, prepare pitch colloid, prepare pitch gel,
Gel cooling crush.The drilling fluid of the present invention is with good performance with anti-collapse sealing agent cation modified asphalt, referring to this theory
The subsequent table of bright book 1.The present invention performance be：Softening point：120 DEG C~150 DEG C, ignition residue≤15.0%, blistering rate≤
10.0%, high temperature and high pressure filter loss≤25.0mL, lubricating coefficient reduced rate >=25.0%.The anti-collapse sealing characteristics of the present invention is good
Good, compared with existing relevant drilling fluid is with anti-collapse sealing agent, under same experimental conditions, performance of the invention all improves
18%~22% or more, and the process step of the invention relative simplicity, simple and practicable, easily controllable and realization, manufacturing cost
20% or more is reduced, industrialization large-scale production is suitable for.Meanwhile raw material of the present invention is degradable, it will not be to soil reclamation ring
It pollutes in border.
In conclusion the present invention's is functional, hole collapse can be inhibited, effectively avoid or reduce drilling complexity
The generation of accident improves drilling quality and efficiency, and present invention sealing characteristics under 160 DEG C of high temperature is good, and increasing stick does not thicken, with
The compatibility of drilling fluid is good, and reservoir protection effect is good.Its degradability is good simultaneously, free from environmental pollution, produces good ring
Effect is protected, the technology requirement of the wider anti-collapse sealing agent of use scope in the market has been reached.
Specific implementation mode
To keep the goal of the invention, technical solution and advantage of the present invention clearer, below in conjunction with embodiment to the present invention
Technical solution carry out clear, complete description.Obviously, described embodiments are some of the embodiments of the present invention, Er Feiquan
Portion's embodiment.Based on the embodiment in invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment 1：Drilling fluid of the present invention with anti-collapse sealing agent cation modified asphalt is matched by following weight
Made of the raw material of (parts by weight, mass fraction)：
The modifying agent is the combination (composition) of two kinds of oil-soluble phenolic resin, Petropols raw materials, oil-soluble phenol
The weight ratio of urea formaldehyde and Petropols is 1: 2；The surfactant is hexadecyltrimethylammonium chloride；Described
Antiplastering agent is the combination of polyanion cellulose and pre-gelatinized starch, the weight ratio of polyanion cellulose and pre-gelatinized starch
It is 1: 0.5.
The drilling fluid is comprised the technical steps that with the preparation method of anti-collapse sealing agent cation modified asphalt：1. will
40 parts of high boiling point solvent oil and 48 parts of asphalt powder are added in reaction kettle, and material in reactor is warming up to 105 DEG C, is stirred
It mixes, so that asphalt powder is dissolved, obtain pitch glue；2. by 7 parts of surfactants and 3 parts of oil-soluble phenolic resins, 6 parts of oil
Resin is added to step 1. in pitch glue obtained, and 80min is reacted at a temperature of 90 DEG C, colloid is obtained after reaction；3. by anti-
Should after obtained colloid temperature control at 75 DEG C, obtain gel after 2 parts of polyanion celluloses, 1 part of pre-gelatinized starch is added
Product；4. 3. gel-like product that step is obtained, to solidifying, crushes anti-to get being used to the drilling fluid by cooling down
Collapse sealing agent cation modified asphalt.
Embodiment 2：Drilling fluid of the present invention with anti-collapse sealing agent cation modified asphalt is matched by following weight
Made of the raw material of (parts by weight, mass fraction)：
The modifying agent is Petropols；The surfactant is hexadecyltrimethylammonium chloride, hexadecane
The combination of two kinds of raw materials of base trimethylammonium bromide, the weight of hexadecyltrimethylammonium chloride and cetyl trimethylammonium bromide
The ratio between be 1: 1；The antiplastering agent is pre-gelatinized starch.
The drilling fluid is comprised the technical steps that with the preparation method of anti-collapse sealing agent cation modified asphalt：1. will
33 parts of high boiling point solvent oil and 55 parts of asphalt powder are added in reaction kettle, and material in reactor is warming up to 110 DEG C, is stirred
It mixes, so that asphalt powder is dissolved, obtain pitch glue；2. by 2.5 parts of hexadecyltrimethylammonium chlorides, 2.5 parts of cetyls
Trimethylammonium bromide and 7 parts of modifying agent are added to step 1. in pitch glue obtained, react 70min at a temperature of 85 DEG C, instead
Should after obtain colloid；3. controlling the colloid temperature obtained after reaction at 90 DEG C, gel production is obtained after 2 portions of antiplastering agents are added
Object；4. 3. gel-like product that step is obtained by cooling down to solidifying, crush to get to the drilling fluid with anti-collapse
Sealing agent cation modified asphalt.
Embodiment 3：Drilling fluid of the present invention with anti-collapse sealing agent cation modified asphalt is matched by following weight
Made of the raw material of (parts by weight, mass fraction)：
The modifying agent be two kinds of oil-soluble phenolic resin, Petropols raw materials combination, oil-soluble phenolic resin with
The weight ratio of Petropols is 1: 1.5；The surfactant is cetyl trimethylammonium bromide；The antiplastering agent
For the combination of sanlose and two kinds of raw materials of pre-gelatinized starch, the weight of sanlose and pre-gelatinized starch
The ratio between amount is 1: 3.
The drilling fluid is comprised the technical steps that with the preparation method of anti-collapse sealing agent cation modified asphalt：1. will
26 parts of high boiling point solvent oil and 62 parts of asphalt powder are added in reaction kettle, and material in reactor is warming up to 120 DEG C, is stirred
It mixes, so that asphalt powder is dissolved, obtain pitch glue；2. by 3 parts of surfactants and 2 parts of oil-soluble phenolic resins, 3 parts of oil
Resin is added to step 1. in pitch glue obtained, and 90min is reacted at a temperature of 100 DEG C, colloid is obtained after reaction；3. by anti-
Should after obtained colloid temperature control at 80 DEG C, be added after 0.25 part of sanlose, 0.75 part of pre-gelatinized starch
To gel-like product；4. 3. gel-like product that step is obtained, to solidifying, crushes to get to the brill by cooling down
The anti-collapse sealing agent cation modified asphalt of well liquid.
In the above various embodiments, the high boiling point solvent oil is the high boiling point solvent oil that boiling range is 140-200 DEG C, can be adopted
With 200# solvent naphthas (paint naphtha).The granularity of the asphalt powder is 60~80 mesh.The Petropols are optional
With C9 Petropols or C5 Petropols.
It is the test portion of the present invention below：Table 1 be (more than) drilling fluid for preparing of each embodiment is positive with anti-collapse sealing agent
Ion modification asphalt performance measurement result.
The anti-collapse sealing agent cation modified asphalt performance measurement result of drilling fluid prepared by 1 each embodiment of table
As shown in Table 1：Drilling fluid prepared by various embodiments of the present invention can be reached with anti-collapse sealing agent cation modified asphalt
To the good impact of performance.Dosage (weight percent) of the present invention in fresh-water drilling fluid is 0.1%~0.2%, in brine
Dosage in drilling fluid is 0.8%~1.2%.The present invention performance be：Softening point：120 DEG C~150 DEG C, ignition residue≤
15.0%, blistering rate≤10.0%, high temperature and high pressure filter loss≤25.0mL, lubricating coefficient reduced rate >=25.0%.The present invention's
Anti-collapse sealing characteristics is good, compared with existing relevant drilling fluid is with anti-collapse sealing agent, under same experimental conditions, and property of the invention
18%~22% or more, and the process step of the invention relative simplicity can be all improved, simple and practicable, easily controllable and realization,
Its manufacturing cost reduces 20% or more.Sealing characteristics is good at a high temperature of it, and increasing stick does not thicken, the compatibility with drilling fluid
Well, reservoir protection effect is good.Meanwhile raw material of the present invention is degradable, it will not be to soil reclamation environmental pollution.
In conclusion the above various embodiments of the present invention is functional, it can inhibit hole collapse, can effectively avoid
Or reduce the generation of drilling complexity accident, drilling quality and efficiency are improved, sealing characteristics is good under high temperature of the present invention, not increasing stick
It does not thicken, good with the compatibility of drilling fluid, reservoir protection effect is good.Its degradability is good simultaneously, free from environmental pollution, produces
Good environment protecting has reached the technology requirement of the wider anti-collapse sealing agent of use scope in the market.
Claims (6)
1. a kind of anti-collapse sealing agent cation modified asphalt of drilling fluid, it is characterised in that it is the raw material matched by following weight
It is manufactured：
The modifying agent is oil-soluble phenolic resin, one or both of Petropols, its proportioning is to appoint when two kinds of combinations
Meaning；The surfactant is hexadecyltrimethylammonium chloride, one kind in cetyl trimethylammonium bromide or two
Kind, two kinds combination when its proportioning be arbitrary；
The drilling fluid is comprised the technical steps that with the preparation method of anti-collapse sealing agent cation modified asphalt：1. by 25 parts
~40 parts of high boiling point solvent oil and 45 parts~65 parts asphalt powder are added in reaction kettle, and material in reactor is warming up to
100 DEG C~120 DEG C, stirring makes asphalt powder dissolve, obtains pitch glue；2. by 3 parts~8 parts surfactants and 5 parts~
10 parts of modifying agent are added to step 1. in pitch glue obtained, 60min~90min are reacted at a temperature of 80 DEG C~100 DEG C, instead
Should after obtain colloid；3. controlling the colloid temperature obtained after reaction at 70 DEG C~90 DEG C, obtained after 1 part~3 portions antiplastering agents are added
To gel-like product；4. 3. gel-like product that step is obtained, to solidifying, crushes to get to the brill by cooling down
The anti-collapse sealing agent cation modified asphalt of well liquid.
2. the anti-collapse sealing agent cation modified asphalt of drilling fluid according to claim 1, it is characterised in that above-mentioned resistance
Stick is polyanion cellulose, sanlose, one or more of pre-gelatinized starch, it is matched when several combinations
Than being arbitrary.
3. the anti-collapse sealing agent cation modified asphalt of drilling fluid according to claim 1, it is characterised in that it is under
It states made of the raw material of weight proportion：
The modifying agent is the combination of two kinds of oil-soluble phenolic resin, Petropols raw materials, oil-soluble phenolic resin and oil
The weight ratio of resin is 1: 2；The surfactant is hexadecyltrimethylammonium chloride；The antiplastering agent is poly- the moon
The weight ratio of the combination of ion fiber element and pre-gelatinized starch, polyanion cellulose and pre-gelatinized starch is 1: 0.5；
The drilling fluid is comprised the technical steps that with the preparation method of anti-collapse sealing agent cation modified asphalt：1. by 40 parts
High boiling point solvent oil and 48 parts of asphalt powder be added in reaction kettles, material in reactor is warming up to 105 DEG C, stirring makes
Asphalt powder dissolves, and obtains pitch glue；2. by 7 parts of surfactants and 3 parts of oil-soluble phenolic resins, 6 parts of Petropols
Step is added to 1. in pitch glue obtained, 80min is reacted at a temperature of 90 DEG C, colloid is obtained after reaction；3. after reacting
Obtained colloid temperature is controlled at 75 DEG C, and gel-like product is obtained after 2 parts of polyanion celluloses, 1 part of pre-gelatinized starch is added；
4. 3. gel-like product that step is obtained, to solidifying, crushes to get to the anti-collapse envelope of the drilling fluid by cooling down
Blocking agent cation modified asphalt.
4. the anti-collapse sealing agent cation modified asphalt of drilling fluid according to claim 1, it is characterised in that it is under
It states made of the raw material of weight proportion：
The modifying agent is Petropols；The surfactant is hexadecyltrimethylammonium chloride, cetyl three
The combination of two kinds of raw materials of methyl bromide ammonium, the weight ratio of hexadecyltrimethylammonium chloride and cetyl trimethylammonium bromide
It is 1: 1；The antiplastering agent is pre-gelatinized starch；
The drilling fluid is comprised the technical steps that with the preparation method of anti-collapse sealing agent cation modified asphalt：1. by 33 parts
High boiling point solvent oil and 55 parts of asphalt powder be added in reaction kettles, material in reactor is warming up to 110 DEG C, stirring makes
Asphalt powder dissolves, and obtains pitch glue；2. by 2.5 parts of hexadecyltrimethylammonium chlorides, 2.5 parts of cetyl trimethyls
Ammonium bromide and 7 parts of modifying agent are added to step 1. in pitch glue obtained, react 70min at a temperature of 85 DEG C, after reaction
To colloid；3. controlling the colloid temperature obtained after reaction at 90 DEG C, gel-like product is obtained after 2 portions of antiplastering agents are added；4. will
3. gel-like product that step obtains, to solidifying, crushes to get to the anti-collapse sealing agent of the drilling fluid by cooling down
Cation modified asphalt.
5. the anti-collapse sealing agent cation modified asphalt of drilling fluid according to claim 1, it is characterised in that it is under
It states made of the raw material of weight proportion：
The modifying agent is the combination of two kinds of oil-soluble phenolic resin, Petropols raw materials, oil-soluble phenolic resin and oil
The weight ratio of resin is 1: 1.5；The surfactant is cetyl trimethylammonium bromide；The antiplastering agent is carboxylic
The weight of the combination of methylcellulose sodium salt and two kinds of raw materials of pre-gelatinized starch, sanlose and pre-gelatinized starch it
Than being 1: 3；
The drilling fluid is comprised the technical steps that with the preparation method of anti-collapse sealing agent cation modified asphalt：1. by 26 parts
High boiling point solvent oil and 62 parts of asphalt powder be added in reaction kettles, material in reactor is warming up to 120 DEG C, stirring makes
Asphalt powder dissolves, and obtains pitch glue；2. by 3 parts of surfactants and 2 parts of oil-soluble phenolic resins, 3 parts of Petropols
Step is added to 1. in pitch glue obtained, 90min is reacted at a temperature of 100 DEG C, colloid is obtained after reaction；3. after reacting
Obtained colloid temperature is controlled at 80 DEG C, is coagulated after 0.25 part of sanlose, 0.75 part of pre-gelatinized starch is added
Gum-like product；4. 3. gel-like product that step is obtained, to solidifying, crushes to get to the drilling fluid by cooling down
With anti-collapse sealing agent cation modified asphalt.
6. a kind of drilling fluid described in claim 1 preparation method of anti-collapse sealing agent cation modified asphalt, feature exist
It is comprised the technical steps that in it：1. 25 parts~40 parts of high boiling point solvent oil and 45 parts~65 parts asphalt powder are added anti-
It answers in kettle, material in reactor is warming up to 100 DEG C~120 DEG C, stirring makes asphalt powder dissolve, obtains pitch glue；②
3 parts~8 parts surfactants and 5 parts~10 parts modifying agent are added to step 1. in pitch glue obtained, 80 DEG C~100
60min~90min is reacted at a temperature of DEG C, and colloid is obtained after reaction；3. by the colloid temperature obtained after reaction control 70 DEG C~
90 DEG C, gel-like product is obtained after 1 part~3 portions antiplastering agents are added；4. 3. gel-like product that step is obtained is cold by cooling down
But it to solidifying, crushes to get to the anti-collapse sealing agent cation modified asphalt of the drilling fluid.
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| CN201810512229.1A CN108659799A (en) | 2018-05-25 | 2018-05-25 | Drilling fluid anti-collapse sealing agent cation modified asphalt and preparation method thereof |
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Effective date of registration: 20190109 Address after: 052360 Shijiazhuang Xinji clean chemical industrial park, Hebei Applicant after: Shijiazhuang Hualai Dingsheng Technology Co., Ltd. Address before: 050071 Ge Lan business 1707, 256 West three Zhuang Street, Xinhua District, Shijiazhuang, Hebei. Applicant before: Shijiazhuang little Drill Technology Co., Ltd. |
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