CN103897094A - Non-fluorescence nano treating agent for drilling fluid and preparation method thereof - Google Patents
Non-fluorescence nano treating agent for drilling fluid and preparation method thereof Download PDFInfo
- Publication number
- CN103897094A CN103897094A CN201410141841.4A CN201410141841A CN103897094A CN 103897094 A CN103897094 A CN 103897094A CN 201410141841 A CN201410141841 A CN 201410141841A CN 103897094 A CN103897094 A CN 103897094A
- Authority
- CN
- China
- Prior art keywords
- monomer
- water
- drilling fluid
- nano
- treatment agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses a non-fluorescence nano treating agent for drilling fluid and a preparation method thereof. The non-fluorescence nano treating agent is synthesized of at least one non-water-soluble monomer and at least one water-soluble monomer under a non-oxygen environment through emulsion polymerization, wherein nano scale of the nano treating agent is 10nm-5000nm; the nano treating agent contains a hydrophilic group with a carboxylic acid group or carboxylate radical on the surface and has a core-shell structure. The carboxylate radical-modified water-soluble nano particle with the shell-core structure is uniform in nano ball particle size, capable of being stably dispersed in drilling fluid to form the drilling fluid containing the nano treating agent. The nano treating agent is free of fluorescence, does not interfere with logging, has effects of resisting high-temperature de-filtration and extreme-pressure lubrication and restraining shale expansion, does not have remarkable influences on flowing deformation of the drilling fluid, and has multiple functions.
Description
Technical field
The present invention relates to the nano material for drilling fluid field, especially a kind of for oil or gas drilled hole liquid without fluorescence nano treatment agent and preparation method thereof.
Background technology
In the time that the size reduction of material arrives the rank of nanometer, it can show the remarkable character that is different from macroscopic material, the properties such as such as small-size effect, surface effects and Selective adsorption, and these special performances are applied in drilling fluid field it becomes possibility.This is the small-size effect because of nano material, can stop up the duct of Nano grade; The large surface of nano material can, can make it adsorb some macromolecule polymer materials, be then used for the large formation pore of blockage ratio self size by bridge joint, it is finer and close that these all make that the mud cake of its formation forms than conventional material; During the network that the functional group of nano-material surface can participate in clay forms, play the effect of falling leak-off; Nano material has stronger surface adsorption, can be adsorbed on the surface of drilling tool, forms the film of one deck densification in surface of drill stem, reduces frictional force; Easily be adsorbed in micro-hole of wearing and tearing of drilling tool, play the function of reparation, utilize " micro-bearing " principle of nanometer bead, can reduce wearing and tearing, prevent bit freezing, play lubricated effect.The specific heat ratio conventional material of nano material is much larger, if applied it in drilling fluid field, can allow it absorb more heat, play the effect that improves inner other additive of drilling fluid and superpolymer performance, and then the overall performance of stable drilling fluid, thereby the thermostability of raising drilling fluid.
In view of above analysis, if nano material is incorporated in drilling fluid field, can solve a lot of problems in existing drilling fluid field, promise to be the novel multi-functional additive for drilling fluid of a class.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of and can significantly reduce drilling fluid filtration and have the drilling fluid of inhibition and lubricating function to use without fluorescence nano treatment agent and preparation method thereof.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: the preparation method of a kind of drilling fluid without fluorescence nano treatment agent, adopt at least one non-water-soluble monomer and at least one water-soluble monomer, under non-oxygen atmosphere, adopt the method for letex polymerization synthetic, the Nano grade of nanometer additive is 10nm-5000nm, and its surface is contained and had carboxylic acid group or carboxylate radical hydrophilic radical, has the structure of nucleocapsid.
Described letex polymerization is seeded emulsion polymerization method, comprises the following steps:
(1) synthesis of nano seed emulsion, adopt at least one water-insoluble monomer, under the condition of non-oxygen atmosphere stirring, the mode that adopts free radical to cause take water as solvent synthesizes nanometer seed, temperature of reaction is 20-96 ℃, time 0.05-2 hour, the massfraction of initiator is 0.005%-3%, the total mass mark of monomer is between 0.1%-50%;
(2) then at least one monomer with carboxylic acid group or carboxylate radical and at least one water-insoluble monomer are joined in nanometer seed emulsion, make its 0-2 hour that coexists, again under the condition of non-oxygen atmosphere stirring, the mode that adopts free radical to cause is reacted 0.1-4 hour, be synthesis of nano additive for drilling fluid, the massfraction of initiator is 0.005%-3%; Temperature of reaction is 20-96 ℃, and the total mass mark of monomer is between 0.2%-70%, and the total mass mark of described monomer refers to the summation of water-insoluble monomer and water-soluble monomer in step (1), (2).
Described letex polymerization is the method for emulsion copolymerization, comprise the following steps: at least one water-soluble monomer with carboxylate radical or carboxylic acid group and at least one water-insoluble monomer are added to the water, under the condition of non-oxygen atmosphere stirring, the mode that adopts free radical to cause is reacted 0.1-8 hour, synthesize nano-drilling fluid treating agent, the massfraction of initiator is 0.005%-3%; Temperature of reaction is 20-96 ℃, and the massfraction of water-insoluble monomer is between 0.1%-50%; The massfraction of water-soluble monomer is between 0.1%-30%.
The monomer that described water-insoluble monomer is following structure:
R
1for the saturated alkane substituting group of H or 1-4 carbon; R
2for the alkane substituting group of 1-5 carbon; X is O or S.
The monomer that described water-insoluble monomer is following structure:
R
1for the alkane substituting group of 1-5 carbon; R
2for the alkane substituting group of 1-5 carbon; X is O or S; Y is O or S; The configuration of alkene is cis or trans.
Described water-insoluble monomer is vinylbenzene, p-methylstyrene, to methoxy styrene with to the one in benzene diene.
Described water-soluble monomer is the monomer of following structure:
R
1for the saturated alkane substituting group of H or 1-4 carbon; M is H, basic metal or amido.
Described water-soluble monomer is the monomer of following structure:
M is H, basic metal or amido; The configuration of alkene is cis or trans.
Described radical initiator can be single dose, as Diisopropyl azodicarboxylate, Diisopropyl azodicarboxylate amidine hydrochloride, dibenzoyl peroxide, Na
2s
2o
8, K
2s
2o
8or (NH
4)
2s
2o
8; Also can be redox system, as Na
2s
2o
8/ NaHSO
3, K
2s
2o
8/ NaHSO
3, (NH
4)
2s
2o
8/ NaHSO
3, Na
2s
2o
8/ FeSO
4, K
2s
2o
8/ FeSO
4, (NH
4)
2s
2o
8/ FeSO
4, Na
2s
2o
8/ Na
2s
2o
3, K
2s
2o
8/ Na
2s
2o
3, (NH
4)
2s
2o
8/ Na
2s
2o
3, Na
2s
2o
8/ Na
2sO
3, K
2s
2o
8/ Na
2sO
3, (NH
4)
2s
2o
8/ Na
2sO
3, Na
2s
2o
8/ aliphatic amide, K
2s
2o
8/ aliphatic amide or (NH
4)
2s
2o
8/ aliphatic amide, described aliphatic amide is RNH
2, R
2nH, R
3n, R is the alkyl of 1-8 carbon.When described initiator is redox system, the mol ratio of oxygenant and reductive agent is 1:0.1-1:10.
Adopt the synthetic drilling fluid of aforesaid method to use without fluorescence nano treatment agent.
The invention has the beneficial effects as follows: gained treatment agent, without fluorescence, does not produce interference to well logging; Make the mud cake of formation thin and fine and close; Can significantly reduce drilling fluid filtration, leak-off reduced rate can reach more than 60%; And the extreme boundary lubrication coefficient that can reduce drilling fluid, extreme boundary lubrication coefficient can reduce more than 70%; Effectively suppress shale expansion, come compared with clear water, suppress shale expansion rate and can reduce more than 70%; High temperature resistance can reach 180 ℃; Anti-salt can reach 15%; And can not produce significant impact to the rheological of drilling fluid.
Accompanying drawing explanation
Fig. 1 is the stereoscan photograph without fluorescence nano treatment agent of the present invention.
Fig. 2 is the transmission electron microscope photo without fluorescence nano treatment agent of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
The preparation method of drilling fluid of the present invention without fluorescence nano treatment agent, adopt at least one non-water-soluble monomer and at least one water-soluble monomer, under non-oxygen atmosphere, adopt the method for letex polymerization synthetic, the Nano grade of nanometer additive is 10nm-5000nm, its surface is contained and is had similar carboxylic acid group or carboxylate radical hydrophilic radical, has the structure of similar nucleocapsid.
Described letex polymerization is seeded emulsion polymerization method, comprises the following steps:
(1) synthesis of nano seed emulsion, adopt at least one water-insoluble monomer, under the condition of non-oxygen atmosphere stirring, the mode that adopts free radical to cause take water as solvent synthesizes nanometer seed, temperature of reaction is 20-96 ℃, time 0.05-2 hour, the massfraction of initiator is 0.005%-3%, the total mass mark of monomer is between 0.1%-50%;
(2) then at least one monomer with carboxylic acid group or carboxylate radical and at least one water-insoluble monomer are joined in nanometer seed emulsion, make its 0-2 hour that coexists, again under the condition of non-oxygen atmosphere stirring, the mode that adopts free radical to cause is reacted 0.1-4 hour, be synthesis of nano additive for drilling fluid, the massfraction of initiator is 0.005%-3%; Temperature of reaction is 20-96 ℃, and the total mass mark of monomer is between 0.2%-70%, and the total mass mark of described monomer refers to the summation of water-insoluble monomer and water-soluble monomer in step (1), (2).
Described letex polymerization is the method for emulsion copolymerization, comprise the following steps: at least one water-soluble monomer with carboxylate radical or carboxylic acid group and at least one water-insoluble monomer are added to the water, under the condition of non-oxygen atmosphere stirring, the mode that adopts free radical to cause is reacted 0.1-8 hour, synthesize nano-drilling fluid treating agent, the massfraction of initiator is 0.005%-3%; Temperature of reaction is 20-96 ℃, and the massfraction of water-insoluble monomer is between 0.1%-50%; The massfraction of water-soluble monomer is between 0.1%-30%.
The monomer that described water-insoluble monomer is following structure:
R
1for the saturated alkane substituting group of H or 1-4 carbon; R
2for the alkane substituting group of 1-5 carbon; X is O or S.
The monomer that described water-insoluble monomer is following structure:
R
1for the alkane substituting group of 1-5 carbon; R
2for the alkane substituting group of 1-5 carbon; X is O or S; Y is O or S; The configuration of alkene is cis or trans.
Described water-insoluble monomer is vinylbenzene, p-methylstyrene, to methoxy styrene with to the one in benzene diene.
Described water-soluble monomer is the monomer of following structure:
R
1for the saturated alkane substituting group of H or 1-4 carbon; M is H, basic metal or amido.
Described water-soluble monomer is the monomer of following structure:
M is H, basic metal or amido; The configuration of alkene is cis or trans.
Described radical initiator can be single dose, as Diisopropyl azodicarboxylate, Diisopropyl azodicarboxylate amidine hydrochloride, dibenzoyl peroxide, Na
2s
2o
8, K
2s
2o
8or (NH
4)
2s
2o
8; Also can be redox system, as Na
2s
2o
8/ NaHSO
3, K
2s
2o
8/ NaHSO
3, (NH
4)
2s
2o
8/ NaHSO
3, Na
2s
2o
8/ FeSO
4, K
2s
2o
8/ FeSO
4, (NH
4)
2s
2o
8/ FeSO
4, Na
2s
2o
8/ Na
2s
2o
3, K
2s
2o
8/ Na
2s
2o
3, (NH
4)
2s
2o
8/ Na
2s
2o
3, Na
2s
2o
8/ Na
2sO
3, K
2s
2o
8/ Na
2sO
3, (NH
4)
2s
2o
8/ Na
2sO
3, Na
2s
2o
8/ aliphatic amide, K
2s
2o
8/ aliphatic amide or (NH
4)
2s
2o
8/ aliphatic amide, described aliphatic amide is RNH
2, R
2nH, R
3n, R is the alkyl of 1-8 carbon.When described initiator is redox system, the mol ratio of oxygenant and reductive agent is 1:0.1-1:10.
Adopt the synthetic drilling fluid of aforesaid method to use without fluorescence nano treatment agent.
The polymethyl methacrylate nano ball that contains carboxylate radical take surface below, describes as example.
1, without the preparation of fluorescence nano treatment agent
1.1 experimental formulas and condition
Of the present invention is that a class has the material with nucleocapsid structure that hydrophilic radical is contained on the surface of nano-scale without fluorescence nano treatment agent.What synthetic this nanometer additive adopted is at least one non-water-soluble monomer and at least one water-soluble monomer, under non-oxygen atmosphere the condition that stirs, adopts the method for letex polymerization synthetic.The initiator adopting can be single dose, as Diisopropyl azodicarboxylate, Diisopropyl azodicarboxylate amidine hydrochloride, dibenzoyl peroxide, Na
2s
2o
8, K
2s
2o
8or (NH
4)
2s
2o
8; Also can be redox system, as Na
2s
2o
8/ NaHSO
3, K
2s
2o
8/ NaHSO
3, (NH
4)
2s
2o
8/ NaHSO
3, Na
2s
2o
8/ FeSO
4, K
2s
2o
8/ FeSO
4, (NH
4)
2s
2o
8/ FeSO
4, Na
2s
2o
8/ Na
2s
2o
3, K
2s
2o
8/ Na
2s
2o
3, (NH
4)
2s
2o
8/ Na
2s
2o
3, Na
2s
2o
8/ Na
2sO
3, K
2s
2o
8/ Na
2sO
3, (NH
4)
2s
2o
8/ Na
2sO
3, Na
2s
2o
8(aliphatic amide is RNH to/aliphatic amide
2, R
2nH, R
3n, R is the alkyl of 1-8 carbon), K
2s
2o
8(aliphatic amide is RNH to/aliphatic amide
2, R
2nH, R
3n, R is the alkyl of 1-8 carbon) or (NH
4)
2s
2o
8/ aliphatic amide (RNH
2, R
2nH, R
3n, R is the alkyl of 1-8 carbon).Temperature of reaction is 20-96 ℃.
The 1.2 novel preparations without fluorescence nano fluid loss agent
The method of seeded emulsion polymerization:
Embodiment 1
First synthetic seed, 0.029g K
2s
2o
8join in 100mL distilled water, after it dissolves, logical nitrogen heating, in the time that temperature reaches 70 ℃, add 8mL methyl methacrylate, under agitation condition, reacts after 2h, obtains the emulsion of polymethyl methacrylate nano particle, is then cooled to room temperature.In above-mentioned emulsion, add 4mL methyl acrylate, 2mL vinylbenzene and 4mL vinylformic acid, it is coexisted after 2h mutually, add 0.03g K
2s
2o
8it is dissolved, under nitrogen environment, stirring and 70 ℃ of conditions, react after 3h, emulsion obtains without fluorescence nano treatment agent through centrifugal and dry operating process, or without processing, and direct as without fluorescence nano treatment agent using the form of emulsion.
Embodiment 2
First synthetic seed, 0.4g (NH
4)
2s
2o
8join in 100mL distilled water, after it dissolves, logical argon gas heating, in the time that temperature reaches 80 ℃, add 15mL methyl acrylate, under agitation condition, reacts after 3h, obtains the emulsion of polymethyl acrylate nanoparticle, is then cooled to room temperature.In above-mentioned emulsion, add 20mL methyl acrylate and 20mL vinylformic acid, it is coexisted after 0.2h mutually, add 0.4g (NH
4)
2s
2o
8it is dissolved, under ar gas environment, stirring and 80 ℃ of conditions, react after 4h, emulsion obtains without fluorescence nano treatment agent through centrifugal and dry operating process, or without processing, and direct as without fluorescence nano treatment agent using the form of emulsion.
Embodiment 3
First synthetic seed, 0.3g K
2s
2o
8with 0.4g NaHSO
3join in 100mL tap water, logical nitrogen heating after it dissolves, in the time that temperature reaches 45 ℃, add 5mL methyl methacrylate and 5mL methyl acrylate, under agitation condition, react after 2h, obtain the emulsion of polymer nano-particle, be then cooled to room temperature.In above-mentioned emulsion, add 6mL methyl methacrylate, 3mL dimethyl maleate and 6mL sodium acrylate, it is coexisted after 0.5h mutually, add 0.1g K
2s
2o
8with 0.15g NaHSO
3it is dissolved, under nitrogen environment, stirring and 45 ℃ of conditions, react after 5h, emulsion obtains without fluorescence nano treatment agent through centrifugal and dry operating process, or without processing, and direct as without fluorescence nano treatment agent using the form of emulsion.
Embodiment 4
First synthetic seed, 0.1g (NH
4)
2s
2o
8join in 100mL distilled water with 0.4g aqueous methylamine solution, logical argon gas heating after it dissolves, in the time that temperature reaches 60 ℃, add 20mL methyl methacrylate and 5mL FUMARIC ACID TECH GRADE methyl esters, under agitation condition, react after 2h, obtain the emulsion of polymer nano-particle, be then cooled to room temperature.In above-mentioned emulsion, add 20mL methyl methacrylate 10mL FUMARIC ACID TECH GRADE, it is total to after 0.2h mutually, add 0.1g (NH
4)
2s
2o
8with 0.4g aqueous methylamine solution, under ar gas environment, stirring and 60 ℃ of conditions, to react after 4h, emulsion obtains without fluorescence nano treatment agent through centrifugal and dry operating process, or without processing, and direct as without fluorescence nano treatment agent using the form of emulsion.
Embodiment 5
First synthetic seed, 0.3g Diisopropyl azodicarboxylate joins in 100mL distilled water, logical nitrogen heating after it dissolves, in the time that temperature reaches 80 ℃, add 5mL methyl acrylate and 1mL to methoxy styrene, under agitation condition, react after 2h, obtain the emulsion of polymer nano-particle, be then cooled to room temperature.In above-mentioned emulsion, add 6mL methyl acrylate and 6mL vinylformic acid, it is coexisted after 0.5h mutually, add 0.2g Diisopropyl azodicarboxylate, under nitrogen environment, stirring and 80 ℃ of conditions, react after 3h, emulsion obtains without fluorescence nano treatment agent through centrifugal and dry operating process, or without processing, and using the form of emulsion directly as without fluorescence nano treatment agent.
The method of the letex polymerization of copolymerization:
Embodiment 6
Under the condition of nitrogen protection stirring, by 8mL methyl acrylate, 4mL vinylformic acid, 100mL distilled water and 0.048g K
2s
2o
8join in the three-necked flask with prolong.Stirring reaction 3h in the situation that of 70 ℃.Reaction solution obtains novel without fluorescence nano treatment agent through centrifugal and dry operating process, also can be without processing, and the direct form using emulsion is as without fluorescence nano treatment agent.
Embodiment 7
Under the condition of argon shield stirring, by 10mL methyl methacrylate, 2mL ethyl propenoate, 3mL methacrylic acid, 3mL vinylformic acid, 100mL tap water, 0.1g K
2s
2o
8with 0.15g NaHSO
3join in the three-necked flask with prolong.Stirring reaction 4h in the situation that of 60 ℃.Reaction solution obtains novel without fluorescence nano treatment agent through centrifugal and dry operating process, also can be without processing, and the direct form using emulsion is as without fluorescence nano treatment agent.
Embodiment 8
Under the condition of nitrogen protection stirring, by 40mL methyl acrylate, 5mL maleic acid methyl esters, 15mL methacrylic acid, 5mL maleic acid, 100mL tap water, 0.1g K
2s
2o
8with 0.15g NaHSO
3join in the three-necked flask with prolong.Stirring reaction 4h in the situation that of 60 ℃.Reaction solution obtains novel without fluorescence nano treatment agent through centrifugal and dry operating process, also can be without processing, and the direct form using emulsion is as without fluorescence nano treatment agent.
2, the application case in drilling fluid field without fluorescence nano treatment agent
To join in base slurry without fluorescence nano treatment agent, and make to be respectively 0.5%, 1% and 2% without the massfraction of the solid content of fluorescence nano treatment agent, on high speed agitator, stir after 20min, survey its rheological parameter, middle pressure drop leak-off and extreme boundary lubrication coefficient.See the following form:
Note: AV--apparent viscosity; PV--plastic viscosity; Y--yield value; FL
aPI--middle press filtration vector.Base slurry: 16g In Xiazijie Region, xinjiang swelling sodium soil and 0.8g anhydrous sodium carbonate are joined in 400mL water to high-speed stirring 20min, static aquation 24h.
As can be seen from the above table, this class nanometer additive is less to the rheology impact of drilling fluid; And have and fall preferably filtration effect, come compared with base slurry, leak-off reduced rate can reach 62%, can significantly reduce the fluid loss of drilling fluid and also the mud cake that forms thin and fine and close, all illustrate that novel nano treatment agent has played and fall preferably filtration effect above; Compare with base slurry, its extreme boundary lubrication coefficient can reduce more than 65%, and this illustrates that this nano material can be adsorbed onto on metallic surface preferably, has reduced the friction between metal and metal, play the effect of good extreme boundary lubrication, be applicable to being applied in horizontal well and extended reach well.
In addition, add the base of the treatment agent being synthesized by embodiment 1 of massfraction 1% to starch, at 220 ℃, heat is rolled 16h, and High Temperature High Pressure (180 ℃, 3.5MPa, 30min) is fallen filter loss and is less than 35mL, illustrates that this type for the treatment of agent also has good high temperature resistance effect; Such treatment agent can obviously suppress the hydration swelling of mud shale, adds the aqueous solution of the treatment agent being synthesized by embodiment 1 of massfraction 1% to compare with clear water, and rate of expansion reduced rate can reach 70%.
In sum, such treatment agent has the outstanding multiple performances such as leak-off, extreme boundary lubrication and inhibition of falling, and the rheological of drilling fluid is had no significant effect, and has reached the multi-functional object of potion.
Of the present invention is from the appearance white pulverulent solids without fluorescence nano treatment agent.From scanning electron microscope data, synthetic product is spherical (see figure 1), and comparatively homogeneous of particle diameter, and size is in 380nm left and right; The demonstration of Zeta electric potential characterization result, its surface is with negative charge.And this kind of nano material has the structure (seeing Fig. 2) of similar nucleocapsid.
The present invention in drilling fluid field, improves the over-all properties of drilling fluid the Application of micron of modification.Specifically, utilize the functional group of nano-material surface that nano material is better dispersed in the aqueous solution, and the surface functional group of nano material can with clay-phase mutual effect, play the protective colloid effect to clay; Utilize the small size of nano material and the characteristic of strong absorption to stop up the duct of Nano grade, and be adsorbed in duct, form crane span structure near opening of the channel, the fine and close mud cake of formation opening of the channel outside, plays shutoff and falls the effect of leak-off; Utilize " micro-bearing " principle and the surface adsorption characteristic of nanometer, improve the lubricant effect of drilling fluid; Utilize Specific Heat Capacity that nano material is large to improve the thermostability of drilling fluid.Finally reach the multi-functional object of potion.
In sum, content of the present invention is not limited in the above-described embodiment, and the knowledgeable people in same area can propose easily other embodiment within technical director's thought of the present invention, but this embodiment comprises within the scope of the present invention.
Claims (10)
1. the preparation method of drilling fluid without fluorescence nano treatment agent, it is characterized in that, adopt at least one non-water-soluble monomer and at least one water-soluble monomer, under non-oxygen atmosphere, adopt the method for letex polymerization synthetic, the Nano grade of nanometer additive is 10nm-5000nm, and its surface is contained and had carboxylic acid group or carboxylate radical hydrophilic radical, has the structure of nucleocapsid.
2. the preparation method of drilling fluid according to claim 1 without fluorescence nano treatment agent, is characterized in that, described letex polymerization is seeded emulsion polymerization method, comprises the following steps:
(1) synthesis of nano seed emulsion, adopt at least one water-insoluble monomer, under the condition of non-oxygen atmosphere stirring, the mode that adopts free radical to cause take water as solvent synthesizes nanometer seed, temperature of reaction is 20-96 ℃, time 0.05-2 hour, the massfraction of initiator is 0.005%-3%, the total mass mark of monomer is between 0.1%-50%;
(2) then at least one monomer with carboxylic acid group or carboxylate radical and at least one water-insoluble monomer are joined in nanometer seed emulsion, make its 0-2 hour that coexists, again under the condition of non-oxygen atmosphere stirring, the mode that adopts free radical to cause is reacted 0.1-4 hour, be synthesis of nano additive for drilling fluid, the massfraction of initiator is 0.005%-3%; Temperature of reaction is 20-96 ℃, and the total mass mark of monomer is between 0.2%-70%, and the total mass mark of described monomer refers to the summation of water-insoluble monomer and water-soluble monomer in step (1), (2).
3. the preparation method of drilling fluid according to claim 1 without fluorescence nano treatment agent, it is characterized in that, described letex polymerization is the method for emulsion copolymerization, comprise the following steps: at least one water-soluble monomer with carboxylate radical or carboxylic acid group and at least one water-insoluble monomer are added to the water, under the condition of non-oxygen atmosphere stirring, the mode that adopts free radical to cause is reacted 0.1-8 hour, synthesizes nano-drilling fluid treating agent, and the massfraction of initiator is 0.005%-3%; Temperature of reaction is 20-96 ℃, and the massfraction of water-insoluble monomer is between 0.1%-50%; The massfraction of water-soluble monomer is between 0.1%-30%.
4. according to the preparation method of drilling fluid without fluorescence nano treatment agent described in claim 1,2 or 3, it is characterized in that the monomer that described water-insoluble monomer is following structure:
R
1for the saturated alkane substituting group of H or 1-4 carbon; R
2for the alkane substituting group of 1-5 carbon; X is O or S.
5. according to the preparation method of drilling fluid without fluorescence nano treatment agent described in claim 1,2 or 3, it is characterized in that the monomer that described water-insoluble monomer is following structure:
R
1for the alkane substituting group of 1-5 carbon; R
2for the alkane substituting group of 1-5 carbon; X is O or S; Y is O or S; The configuration of alkene is cis or trans.
6. according to the preparation method of drilling fluid without fluorescence nano treatment agent described in claim 1,2 or 3, it is characterized in that, described water-insoluble monomer is vinylbenzene, p-methylstyrene, to methoxy styrene with to the one in benzene diene.
7. according to the preparation method of drilling fluid without fluorescence nano treatment agent described in claim 1,2 or 3, it is characterized in that the monomer that described water-soluble monomer is following structure:
R
1for the saturated alkane substituting group of H or 1-4 carbon; M is H, basic metal or amido.
8. according to the preparation method of drilling fluid without fluorescence nano treatment agent described in claim 1,2 or 3, it is characterized in that the monomer that described water-soluble monomer is following structure:
M is H, basic metal or amido; The configuration of alkene is cis or trans.
9. according to the preparation method of the drilling fluid described in claim 2 or 3 without fluorescence nano treatment agent, it is characterized in that, described radical initiator is Diisopropyl azodicarboxylate, Diisopropyl azodicarboxylate amidine hydrochloride, dibenzoyl peroxide, Na
2s
2o
8, K
2s
2o
8, (NH
4)
2s
2o
8, Na
2s
2o
8/ NaHSO
3, K
2s
2o
8/ NaHSO
3, (NH
4)
2s
2o
8/ NaHSO
3, Na
2s
2o
8/ FeSO
4, K
2s
2o
8/ FeSO
4, (NH
4)
2s
2o
8/ FeSO
4, Na
2s
2o
8/ Na
2s
2o
3, K
2s
2o
8/ Na
2s
2o
3, (NH
4)
2s
2o
8/ Na
2s
2o
3, Na
2s
2o
8/ Na
2sO
3, K
2s
2o
8/ Na
2sO
3, (NH
4)
2s
2o
8/ Na
2sO
3, Na
2s
2o
8/ aliphatic amide, K
2s
2o
8/ aliphatic amide, (NH
4)
2s
2o
8one in/aliphatic amide, described aliphatic amide is RNH
2, R
2nH, R
3n, R is the alkyl of 1-8 carbon.
10. the drilling fluid that prepared by the method for claim 1 use without fluorescence nano treatment agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410141841.4A CN103897094B (en) | 2014-04-10 | 2014-04-10 | Drilling fluid unstressed configuration nanometer additive and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410141841.4A CN103897094B (en) | 2014-04-10 | 2014-04-10 | Drilling fluid unstressed configuration nanometer additive and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103897094A true CN103897094A (en) | 2014-07-02 |
| CN103897094B CN103897094B (en) | 2016-03-09 |
Family
ID=50988698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410141841.4A Active CN103897094B (en) | 2014-04-10 | 2014-04-10 | Drilling fluid unstressed configuration nanometer additive and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103897094B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113637114A (en) * | 2021-08-18 | 2021-11-12 | 宁波锋成先进能源材料研究院有限公司 | Nano profile control and flooding agent and preparation method and application thereof |
| CN117106180A (en) * | 2023-10-16 | 2023-11-24 | 中石化西南石油工程有限公司 | Shale inhibitor for water-based drilling fluid and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000078891A1 (en) * | 1999-06-22 | 2000-12-28 | Ciba Specialty Chemicals Water Treatments Limited | Oil based drilling fluid and copolymer based on styrene, lauryl methacrylate and (meth)acrylic acid |
| CN102399345A (en) * | 2010-09-14 | 2012-04-04 | 中国科学院理化技术研究所 | Emulsion deep profile/displacement control agent and preparation method of emulsion deep profile/displacement control agent containing gel microspheres of core shell structure |
| CN102504793A (en) * | 2011-10-10 | 2012-06-20 | 西南石油大学 | Core-shell polymer microsphere profile control and oil displacement agent and preparation method thereof |
| CN103242809A (en) * | 2013-05-10 | 2013-08-14 | 西南石油大学 | Acrylic-series emulsion copolymer and application thereof as well as drilling fluid drag reducer and preparation method thereof |
-
2014
- 2014-04-10 CN CN201410141841.4A patent/CN103897094B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000078891A1 (en) * | 1999-06-22 | 2000-12-28 | Ciba Specialty Chemicals Water Treatments Limited | Oil based drilling fluid and copolymer based on styrene, lauryl methacrylate and (meth)acrylic acid |
| CN102399345A (en) * | 2010-09-14 | 2012-04-04 | 中国科学院理化技术研究所 | Emulsion deep profile/displacement control agent and preparation method of emulsion deep profile/displacement control agent containing gel microspheres of core shell structure |
| CN102504793A (en) * | 2011-10-10 | 2012-06-20 | 西南石油大学 | Core-shell polymer microsphere profile control and oil displacement agent and preparation method thereof |
| CN103242809A (en) * | 2013-05-10 | 2013-08-14 | 西南石油大学 | Acrylic-series emulsion copolymer and application thereof as well as drilling fluid drag reducer and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113637114A (en) * | 2021-08-18 | 2021-11-12 | 宁波锋成先进能源材料研究院有限公司 | Nano profile control and flooding agent and preparation method and application thereof |
| CN117106180A (en) * | 2023-10-16 | 2023-11-24 | 中石化西南石油工程有限公司 | Shale inhibitor for water-based drilling fluid and preparation method thereof |
| CN117106180B (en) * | 2023-10-16 | 2024-02-27 | 中石化西南石油工程有限公司 | Shale inhibitor for water-based drilling fluid and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103897094B (en) | 2016-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102775615B (en) | Method for preparing polystyrene plastic small balls and product prepared from polystyrene plastic small balls as well as application of polystyrene plastic small balls | |
| Mao et al. | Novel hydrophobic associated polymer based nano-silica composite with core–shell structure for intelligent drilling fluid under ultra-high temperature and ultra-high pressure | |
| CN105754563B (en) | A kind of organic salt drilling fluid suitable for extended reach well | |
| CN109824839B (en) | Nano-silica graft copolymer, preparation method and application thereof, and drilling fluid and application thereof | |
| CN108503744B (en) | Acrylic emulsion and its preparation method and application with core-shell structure | |
| MX2012010913A (en) | Nanoparticle-densified completion fluids. | |
| CN102477287B (en) | Drilling fluid and composite additive | |
| CN104694092A (en) | Water-based drilling fluid of shale gas horizontal well reinforced well wall and application thereof | |
| CN101298488B (en) | Preparation of cationic polyacrylamide reverse microemulsion | |
| CN103275796A (en) | Magnetorheological fluid | |
| US11286411B2 (en) | Synergist for water-based drilling fluid and preparation method therefor, water-based drilling fluid and application thereof | |
| CN103897094A (en) | Non-fluorescence nano treating agent for drilling fluid and preparation method thereof | |
| CN108424755B (en) | High calcium salt drilling fluid and preparation method thereof | |
| CN104559976A (en) | Water-based drilling fluid and preparation method thereof | |
| CN103509143A (en) | Preparation method of organic/inorganic composite globules | |
| US20190127625A1 (en) | Modified Cellulose Nanocrystals and Their Use in Drilling Fluids | |
| CN103936914B (en) | High temperature resistance is without fluorescence nano anti-collapse and anti-falling filtration agent and preparation method thereof | |
| CN105330785B (en) | Temperature-resistant salt-resistant nano anti-collapse filtrate reducer for drilling fluid and preparation method thereof | |
| CN103509536A (en) | Solid-free drilling fluid | |
| Yang et al. | Performance evaluation of polymer nanolatex particles as fluid loss control additive in water-based drilling fluids | |
| CN108384525B (en) | Water-base drilling fluid compositions of additives and water-base drilling fluid and its application containing supramolecular materials | |
| CN106833807A (en) | A kind of fullerenic carbon nanotubes lubricating additive and its preparation | |
| CN111205396B (en) | Graft modified xanthan gum and preparation method and application thereof | |
| CN106432595A (en) | Low-friction filtrate reducer and preparation method and application thereof | |
| CN104861103A (en) | Preparation method and application of organic composite sodium modified bentonite microparticle retention and drainage aid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210726 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: 300457 Tianjin Binhai New Area Development Zone Huanghai Road 106, Bohai Drilling Engineering Co., Ltd. science and Technology Development Office Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
|
| TR01 | Transfer of patent right |