CN105567181B - A kind of production method of new oil base drilling fluid organic rectorite - Google Patents
A kind of production method of new oil base drilling fluid organic rectorite Download PDFInfo
- Publication number
- CN105567181B CN105567181B CN201510893277.6A CN201510893277A CN105567181B CN 105567181 B CN105567181 B CN 105567181B CN 201510893277 A CN201510893277 A CN 201510893277A CN 105567181 B CN105567181 B CN 105567181B
- Authority
- CN
- China
- Prior art keywords
- rectorite
- sodium
- product
- organic
- reaction
- 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.)
- Active
Links
Classifications
-
- 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
- C09K8/02—Well-drilling compositions
- C09K8/32—Non-aqueous well-drilling compositions, e.g. oil-based
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Lubricants (AREA)
Abstract
A kind of production method of new oil base drilling fluid organic rectorite, the main component of the organic rectorite is rectorite, quaternary ammonium salt.Its production craft step is：A, sodium/lithiumation pretreatment；B, organise reaction；C, filtering, washing；D, ageing, drying, crushing.It is pre-processed it is an advantage of the invention that employing sodium salt and lithium salts composite modification technology and carrying out sodium/lithiumation to calcium base rectorite raw material, improves the colloid rheological property of organic rectorite product；It employs controllable high temperature to organise technique, is fully advanced the chemical reaction for the cation exchange that organises, the quality of organic rectorite is more stable；Employing filter wash technique, removal organises the remaining soluble ion of cation exchange reaction product, further improves the high-temperature stability of product, meanwhile, also reduce the impurity content of product.
Description
Technical field
The present invention relates to industries such as a kind of oil, natural gas, Di Kuang, architectural engineerings for the life of the colloidal materials of drilling fluid
Production technology belongs to drilling well compositions field.Relate in particular to a kind of production method of organic clay for oil base drilling fluid.
Background technology
Oil base drilling fluid have high temperature resistance, salt resistance, stabilizing borehole, beneficial to lubrication and it is smaller etc. to formation damage degree
Advantage is international mainstream drilling fluid, and external major part drilling engineering employs oil base drilling fluid.The country also identifies oil base drilling well
The advantages of liquid, with reference to the stratum condition of drilling well project, is just stepping up the use ratio of oil base drilling fluid.
Organic clay is the indispensable oleophylic colloid material of oil base drilling fluid.Rectorite can be used for drilling fluid as a kind of
Novel clay soil, have the characteristics that in rheological characteristic, high-temperature stability, filtration reduction etc. original, be that drilling fluid field has
The upgraded product of potentiality.Patent 01133501.7, patent 201010262766.9 indicate these advantages of rectorite, but
They refer to the sodium base rectorite for water base drilling fluid system.To be used for oil base drilling fluid, rectorite has to pass through
It is organically-modified, organic rectorite is made.Patent 201010258856.0 disclose a kind of oil base drilling fluid organic rectorite and
Its production method, its main feature is that being mixed using calcium base rectorite with as the quaternary ammonium salt solution of organic coverture, using shear extrusion
Method organise, using cal rolling friction generate heat organise to realize, then re-dry and crush be into
Product are a kind of simple inexpensive processing methods.
Although the technology disclosed in patent 201010258856.0 has simple for process, easy to operate, of low cost etc. excellent
Point, but there is also some problems.
First, technology disclosed in patent 201010258856.0 is raw material directly with calcium base rectorite, influences to organise
Effect.Industrially, clay will generally pass through sodium modification or activation modification before organising.The technology of sodium modification is former
Reason is that sodium ion is monovalent ion, and after sufficient cation exchange, ion concentration divalent calcium ions double, Na+、Ca++Electricity
Electrokinetic potential is suitable, therefore the total electro kinetic potential of Na type clays is about twice of Ca type clays, the polarity that Na type clay particles are adsorbed
Molecule is more, and adsorbed film is thicker, the charge repulsion bigger that the micelle formed generates each other, and micelle particle is not easy aggregation sedimentation,
Soliquid is more stable.The quality and alkali metal ion content measured of the colloidal property of the final products organoclay for sodium/organise
Positive correlation, with total electro kinetic potential positive correlation, a large amount of contrast tests have confirmed that this point.Non-natural sodium form clay mineral passes through
Sodium modification can obtain the preferable effect that organises.Li and Na are all alkali metal element, Li+Electro kinetic potential compares Na+Higher, Li types
The colloidal property of clay is more preferable.However, the organoclay production method of independent lithiumation pretreatment or the compound pretreatment of sodium/lithiumation,
There is not yet open report.The technical principle of activation modification is that the adsorption capacity of clay mineral is proportional to specific surface area, and process is inorganic
After acid activation, specific surface area increases, and is advantageously implemented the exchange and absorption of organic cation, is conducive to be formed in dispersion
Thicker, more stable micelle particle, and a part of Al can be dissolved out in acidization+++、Mg++It is commutative to add interlayer for ion
Cation amount.Industrial production organobentonite is nothing more than two kinds of sodium, acid activation pretreatments are carried out, and core technology principle is such as
On.So in order to which rectorite raw material is made more preferably to participate in organising cation exchange reaction, sodium (or lithium need to be carried out to rectorite
Change) or activation modification processing.
Second, the technology disclosed in patent 201010258856.0 does not heat during organising, only by rolling friction
The heat of generation maintains cation exchange reaction, and organise less effective.Experiments have shown that only frictionally heat, temperature of charge lead to
It often is only capable of maintaining 30~60 DEG C, summer can reach 70~80 DEG C once in a while.By the use of quaternary ammonium salt as organic coverture to rectorite into
The chemical reaction of row cation exchange is the endothermic reaction, improves reaction temperature and is conducive to chemical balance towards generation organic rectorite
Direction carry out, therefore the low effect for necessarily affecting the reaction that organises of temperature.On the other hand, according to 201010258856.0 institute of patent
Disclosed technology, temperature of charge is influenced by ambient temperature big, and seasonal fluctuation is big, and quality is difficult to control.It is so organic in order to make
Change reaction fully to carry out, it is necessary to higher, more controllable reaction temperature.
3rd, the technology disclosed in patent 201010258856.0 is left to organise the Ca of reacting final product++Ion, Mg++
Ion, Cl-The impurity such as ion retain in the product, final product are not washed, influence properties of product.These ion pair products
Adverse effect be divided into two aspect.On the one hand, due to the effect of these heteroions, the high-temperature stability of oil systems is deteriorated, high temperature
The viscosity of drilling fluid system is easy to be thickened after aging, the increase of drilling rod torque, and also results in filter loss increase.On the other hand, it is residual
Remaining heteroion is impurity, causes the effective content of organoclay to reduce, in order to obtain same effect, as oleophylic colloid in full oil
Addition in system or water-in-oil system would have to improve.So in order to ensure the performance of product, preferably in the reaction that organises
Final product is washed afterwards to remove foreign ion.Organoclay is divided into wet method and dry method, and wet method is better than one of dry method
Major reason is that convenient for washing removal foreign ion.
The content of the invention
For the deficiency of published organic rectorite production method, it is an object of the invention to provide a kind of improved lifes
Production method, with quality of production higher, performance more stable oil base drilling fluid organic rectorite product.
The present invention production stage be：
(1) sodium/lithiumation pretreatment.2~10 parts of sodium are added in the container for filling 75~90 parts of calcium base rectorite raw materials
The industrial water of the mixture and 1~20 times of calcium base rectorite raw material of salt and lithium salts, is warming up to 70~95 DEG C.Stirring at low speed
30~210 minutes, form uniform slurries.
(2) organise reaction.The organic coverture of quaternary ammonium salt is added in above-mentioned slurries for 10~25 parts, is added while stirring
Heat controls temperature at 70~115 DEG C.If the reaction temperature of setting is more than 100 DEG C, container if, is necessarily closed, with
Just the pressure for being more than an atmospheric pressure is obtained in container, ensures that slurries are unlikely to gasify.After reaching design temperature, while stirring
Heat preservation 30~210 minutes.
(3) filter, wash.
(4) it is aged, is dry, crushes.
Rectorite concentrate of the calcium base rectorite raw material for natural accumulation supporting stone raw ore or after sorting, rectorite content >=
55%, the calcium ion type accounting in rectorite interlayer cation reaches more than 50%.
Pretreating process is one of innovative point of the present invention.Composite modified with sodium salt/lithium salts, sodium salt is sodium carbonate or chlorination
The one or two of sodium are mixed with arbitrary proportion, and lithium salts is lithium carbonate, lithium chloride or lithium oxalate one or more therein to appoint
Meaning ratio mixes.Sodium salt：The mixing ratio of lithium salts is 1:99~99:1.We use sodium/lithium for the first time in the production of organoclay
Change composite modified technique.In 25 DEG C of acid solutions, [Li+]+[e-]=[Li] reaction equation standard electrode potential for-
3.0401v is the highest electrode potential of absolute value in all elements.Li and Na are all alkali metal element, Li+Electro kinetic potential compares Na+
Higher, therefore, the colloidal property of Li type clays are more preferable, specifically, directly organise compared with calcium base rectorite and sodium changes
It organises after property, after sodium/lithiumation is composite modified, organic native produce can obtain better rheological characteristic in oil-base mud
Energy.Moreover, after lithiumation processing and follow-up organic-treating, a small amount of interlayer lithium ion that the interlayer of organic rectorite still adsorbs
It is clean to be that filtration washing is difficult to remove, this part lithium ion is beneficial for the high-temperature stability for improving organoclay.In view of several
The normal-temperature dissolution degree of kind lithium salts in water is not high, it would be desirable to keep higher temperature in sodium/lithiumation processing, strengthen sodium
The effect that change/lithiumation is modified.
The sodium salt is sodium carbonate or one or two kinds of mixtures mixed with arbitrary proportion of sodium chloride, and lithium salts is carbon
Sour lithium, lithium chloride or lithium oxalate one or more mixtures mixed with arbitrary proportion therein, sodium salt：The mixing ratio of lithium salts is
1:99~99:1.
The organic coverture of the quaternary ammonium salt is m- alkylpolyoxyethylenes or/and n- alkyldimethylbenzylammonium halogenations
Ammonium, m, n are the carbon number of carbochain, and value is 10~24.
Organise reaction when, reaction temperature be at least higher than used in quaternary ammonium salt fusing point.Heating is conducive to quaternary ammonium salt
Dissolving, ionization, improve the momentum of molecular motion, can fully react.
The filtering and washing is that the product slurry for the reaction that organises is moved into common plate and frame filter press, membrane press filtration
Machine, the vacuum filtration devices such as machine or centrifuge, filter off moisture and soluble ion as far as possible.It should repeatedly dilute and wash repeatedly if necessary
Filter.Amount and the filter wash supplement for the industrial water that the number of filter wash is added in when being pre-processed depending on sodium/lithiumation add the accumulative dilute of water
Release than it is different and different, it is desirable that be ensure product remaining soluble ion content be less than parent ion content
1%.In general, organic cation is The more the better for product final being replaced into, and the limit is exactly the cation exchange of mineral
Amount.Within the scope of saturation addition, organic coverture addition is more, and performance is better.It does not anticipate more than saturation addition
Justice can be rinsed in washing.
The ageing be by the filter cake after pressure filtration washing or similar dehydration product it is In Shade stack 8 it is small when more than.
The drying is to dry the product after ageing to moisture content under 100~150 DEG C of environment to be less than 3.5%.
The crushing is dried product to be ground into 80 mesh using pulverizer or thinner (average grain diameter is less than or equal to
0.173mm)。
The organic rectorite of the present invention is compared with organobentonite, still with larger cost advantage, because organic cover
Lid agent addition can be considerably less than organobentonite.It is known that the cation exchange capacity (CEC) of rectorite for 36~
40mmol/100g, bentonite CEC are generally 70~100mmol/100g, and rectorite only needs less organic coverture can
To reach unsaturated cationic exchange capacity.
Although the present invention can suitably increase cost compared with original patent 201010258856.0 in technologic improvement,
But for organobentonite, Material Cost of the invention is low, and comprehensive cost still has very high competitiveness, and performance is then
It improves a lot than the technology of original similar rectorite and bentonitic technology, therefore, the present invention brings stronger to product
The market competitiveness.
Specific embodiment
Embodiment 1.
In reaction vessel, the calcium base rectorite powder (100 mesh) that 100 parts of purity are 66% moisture content 6% is added in, adds in 2
Part sodium carbonate, 1.5 parts of lithium carbonates, the mixed solution of 200 parts of water, add 200 parts of industrial waters, heat and with the speed of 120rpm
Degree stirring, 90 DEG C are risen to by temperature.It is kept stirring 45 minutes, takes the cetyl front three of net content 75% (remaining is mainly water)
20 parts of ammonium chloride adds in container, vessel temp is maintained at 90 DEG C, continues the speed stirring with 120rpm, organise reaction
90 minutes.200 parts of room temperature industrial waters are added in, are stirred 2 minutes, to adjust the thinner ratio of slurries.Then, slurries are imported into vacuum
Suction filtration machine is filtered, and takes out filter cake, when shady place placement 24 is small, is dried to water content 3%.It is crushed to 200 mesh
The organic rectorite of embodiment 1 is made in (0.074mm).It measures performance parameter and is shown in Table 1.
Comparative example 1.
The calcium base rectorite powder (100 mesh) that 100 parts of purity are 66% moisture content 6% is placed in industrial sand mixer, it will
Organic coverture hexadecyltrimethylammonium chloride of 20 parts of 75% net content (remaining is water) is heated to 30 DEG C, adds in 5 part 70
DEG C industrial water, make organic coverture that there is mobility, then this organic coverture added to sand mixer, adjustment muller gap makes
It is larger to obtain active force, implements shear extrusion to mixed material, the time of shear extrusion is 90 minutes, and material is released from sand mixer,
When ageing placement 24 is small, it is 6% to be dried to water content, levigate to 200 mesh of grain size (0.074mm) with Raymond machine, and comparative example 1 is made
Organic rectorite.It measures performance parameter and is shown in Table 1.
Embodiment 2.
In sealable reaction vessel, the calcium base rectorite powder that 100 parts of purity are 73% moisture content 6.5% is added in, is added
Enter the mixed solution of 3 parts of sodium carbonate, 2 parts of lithium oxalates, 200 parts of water, add 300 parts of industrial waters, heat and with 120rpm's
Speed stirs, and temperature is risen to 80 DEG C.It is kept stirring 45 minutes, takes the octadecyl two of net content 75% (remaining is mainly water)
28.5 parts of methylbenzyl ammonium chloride adds in container, vessel temp is maintained at 115 DEG C and pressure is established in closed container, after
The continuous speed with 120rpm stirs, and keeps the temperature 60 minutes.Then, slurries importing vacuum filtration machine is filtered, works as filtrate discharge
Go out about 80%, when the concentration of remaining slurry significantly increases in suction funnel, add 400 parts of industrial water, filter, drain again
Moisture takes out filter cake, when placement 48 is small, is dried to moisture content 3%.200 mesh (0.074mm) are crushed to, are made to embodiment 2
Organic rectorite.It measures performance parameter and is shown in Table 1.
Comparative example 2.
The calcium base rectorite powder (100 mesh) that 100 parts of purity are 73% moisture content 6.5% is placed in industrial sand mixer,
Organic coverture stearyl dimethyl benzyl ammonium chloride of 28.5 parts of 75% net contents (remaining is water) is heated to 30 DEG C,
The industrial water that 5 parts of temperature are 70 DEG C is added in, makes organic coverture that there is mobility, then this organic coverture is added into mulling
Machine, adjustment muller gap so that active force is larger, implement shear extrusion to mixed material, and the time of shear extrusion is 60 minutes,
Material is released from sand mixer, when ageing placement 48 is small, it is 6% to be dried to water content, levigate to 200 mesh of grain size with Raymond machine
The organic rectorite of comparative example 2 is made in (0.074mm).It measures performance parameter and is shown in Table 1.
The performance test results of 1 embodiment of table and comparative example
Note：High temperature rheology and high temperature fluid loss performance system's sample heat 16 h of rolling and are cooled to room temperature 25 DEG C at 180 DEG C
The performance measured afterwards.
Test method explanation
Colloidity：4.0g organic rectorites (being accurate to 0.01g) accurately are weighed, pour into No. 0 cleaning diesel oil for filling 200ml
In mud cap, mud cap height 18cm, upper end diameter 9.7cm, lower end diameter 7.0cm.It is stirred with homogenizer under 4000rpm
2min is mixed, is completely dispersed it.Homogenizer blade diameter 2.5cm, quality 5.5g.100ml mixed liquors are therefrom measured to pour into
In the tool plug graduated cylinder of 100 ml, after stoppering graduated cylinder, hand 5 minutes up and down, 90 minutes are stood, upper strata is observed and recorded and dissociates diesel oil
Volume V (ml).The formula for calculating colloidity is as follows：
The of colloidity=(100-V)/l00 × 100%
The assay method of rheological property：These rheological property indexs of apparent viscosity, plastic viscosity, yield value can lead to
Cross viscosimetric analysis.10.5g organic rectorites (being accurate to 0.01g) accurately are weighed, pours into and fills No. 0 of 350ml cleaning diesel oil
In mud cap, 2min is stirred under 4000rpm with homogenizer, removes mud cap, scraped and be adhered to container side wall, bottom surface
Rectorite.Then, the high-speed stirred 10min under 11000rpm rotating speeds.Φ 600 is measured with direct-reading, Φ 300 is read at normal temperatures
Value, instrument are FANN35 types.Apparent viscosity, plastic viscosity, yield value are calculated according to the following formula.
Apparent viscosity AV=1/2 [600 readings of Φ], (mPas)
Plastic viscosity PV=[600 readings of Φ]-[300 readings of Φ], (mPas)
Yield value YP=AV-PV, (Pa)
The assay method of filter loss：At 25 DEG C at room temperature, No. 0 cleaning diesel oil of 380ml is accurately measured, pours into mud cap
In, 20ml distilled water is added in, 12.0g organic rectorites is added in, stirs 2min under 4000rpm with homogenizer, remove mud
Slurry cup scrapes and is adhered to container side wall, the rectorite of bottom surface.Then, the high-speed stirred 10min under 11000rpm rotating speeds, is removed.
Above-mentioned suspension is poured into immediately in the mud box of drying of filtration device, make liquid level to top be about at 13mm encrypt seal and
Filter paper and cover after, Quick-pressing to 0.69 MPa, record 30min when graduated cylinder in filtrate volume milliliter number, be leak-off
Amount.
High temperature rheology, high temperature filter loss measure：Under 11000rpm rotating speeds after high-speed stirred, sample is packed into stainless cylinder of steel,
1.0MPa nitrogen is filled with, 180 DEG C of heat rolling 16h take out, are cooled to 25 DEG C of room temperatures, as stated above flow measurement denaturation and filter loss.
Claims (1)
1. a kind of production method of oil base drilling fluid organic rectorite, it is characterized in that comprising the following steps：
(1) sodium/lithiumation pretreatment：In the container for filling 75~90 parts of calcium base rectorite raw materials add in 2~10 parts of sodium salts and
The industrial water of the mixture of lithium salts and 1~20 times of calcium base rectorite raw material, is warming up to 70~95 DEG C, and stirring at low speed 30~
210 minutes, form uniform slurries；
(2) organise reaction：The organic coverture of quaternary ammonium salt is added in above-mentioned slurries for 10~25 parts, is heated while stirring, it will
Temperature is controlled at 70~115 DEG C, if the reaction temperature of setting is more than 100 DEG C, container if is necessarily closed, to hold
The pressure for being more than an atmospheric pressure is obtained in device, ensures that slurries are unlikely to gasify, after reaching design temperature, keeps the temperature 30 while stirring
~210 minutes；
(3) filter, wash；
(4) it is aged, is dry, crushes；
Rectorite concentrate of the calcium base rectorite raw material for natural accumulation supporting stone raw ore or after sorting, rectorite content >=55%, rectorite
Calcium ion type accounting in interlayer cation reaches more than 50%；Sodium salt is the one or two kinds of to appoint of sodium carbonate or sodium chloride
The mixture of meaning ratio mixing, lithium salts are mixed for lithium carbonate, lithium chloride or lithium oxalate one or more therein with arbitrary proportion
Mixture, sodium salt：The mixing ratio of lithium salts is 1:99~99:1；The organic coverture of quaternary ammonium salt is m- alkylpolyoxyethylenes
Or/and n- alkyl-dimethyl benzyl ammonium halides, m, n are the carbon number of carbochain, value is 10~24；Filtering and washing are by step
Suddenly the product slurry of the reaction that organises of (2) moves into common plate and frame filter press, diaphragm filter press, vacuum filtration machine or centrifugation
Machine filters off moisture and soluble ion, should repeatedly dilute filter wash repeatedly if necessary, what the number of filter wash was added in depending on step (1)
Amount and the filter wash supplement of industrial water add the different and different of the accumulative thinner ratio of water, it is desirable that are the remnants for ensureing product
The content of soluble ion is less than the 1% of parent ion content；Ageing is to put the filter cake after pressure filtration washing or similar dehydration product
More than when shady place stacking 8 is small；Drying is to dry the product after ageing to moisture content under 100~150 DEG C of environment to be less than
3.5%；Crushing is that dried product is ground into 80 mesh or average grain diameter less than or equal to 0.173mm using pulverizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510893277.6A CN105567181B (en) | 2015-12-08 | 2015-12-08 | A kind of production method of new oil base drilling fluid organic rectorite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510893277.6A CN105567181B (en) | 2015-12-08 | 2015-12-08 | A kind of production method of new oil base drilling fluid organic rectorite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105567181A CN105567181A (en) | 2016-05-11 |
| CN105567181B true CN105567181B (en) | 2018-06-05 |
Family
ID=55877836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510893277.6A Active CN105567181B (en) | 2015-12-08 | 2015-12-08 | A kind of production method of new oil base drilling fluid organic rectorite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105567181B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106634882A (en) * | 2016-09-19 | 2017-05-10 | 武汉华矿胶体化学有限公司 | Organic rectorite composition for oil-based drilling fluid and preparation method of organic rectorite composition |
| CN114539992A (en) * | 2022-03-01 | 2022-05-27 | 武汉华矿胶体化学有限公司 | Improved organic rectorite for oil-based drilling fluid and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942292A (en) * | 2010-08-23 | 2011-01-12 | 湖北美标汽车制冷系统有限公司 | Organic clay for oil base drilling fluid and production process thereof |
-
2015
- 2015-12-08 CN CN201510893277.6A patent/CN105567181B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942292A (en) * | 2010-08-23 | 2011-01-12 | 湖北美标汽车制冷系统有限公司 | Organic clay for oil base drilling fluid and production process thereof |
Non-Patent Citations (2)
| Title |
|---|
| 有机累托石及其胶体化学性质探讨;杨鸿剑;《新疆石油与天然气》;20141215;第10卷(第4期);66-70 * |
| 累托石改性的研究进展;马丽阳;《岩石矿物学杂志》;20091125;第28卷(第6期);691-694 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105567181A (en) | 2016-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Mpofu et al. | Temperature influence of nonionic polyethylene oxide and anionic polyacrylamide on flocculation and dewatering behavior of kaolinite dispersions | |
| Mpofu et al. | Flocculation and dewatering behaviour of smectite dispersions: effect of polymer structure type | |
| Zhang et al. | Effect of clay minerals on pulp rheology and the flotation of copper and gold minerals | |
| Karagüzel et al. | Activation of (Na, Ca)-bentonites with soda and MgO and their utilization as drilling mud | |
| Zhuang et al. | Rheological properties of organo-palygorskite in oil-based drilling fluids aged at different temperatures | |
| Spagnoli et al. | Undrained shear strength of clays as modified by pH variations | |
| Yue et al. | Formation and characteristics of cationic-polymer/bentonite complexes as adsorbents for dyes | |
| Tunç et al. | Electrokinetic and rheological properties of sepiolite suspensions in the presence of hexadecyltrimethylammonium bromide | |
| Chemeda et al. | Rheological properties of palygorskite–bentonite and sepiolite–bentonite mixed clay suspensions | |
| CN105567181B (en) | A kind of production method of new oil base drilling fluid organic rectorite | |
| Nosrati et al. | Muscovite clay mineral particle interactions in aqueous media | |
| Li et al. | Salt coagulation or flocculation? In situ zeta potential study on ion correlation and slime coating with the presence of clay: A case of coal slurry aggregation | |
| CN101942292B (en) | Organic clay for oil base drilling fluid and production process thereof | |
| CN106495175A (en) | A kind of preparation method of organic modification montmonrillonite | |
| Pawlik et al. | Effect of carboxymethyl cellulose and ionic strength on stability of mineral suspensions in potash ore flotation systems | |
| CN109233761A (en) | Modified Thermo-sensitive NIPAM bentonite and temperature response type drilling fluid | |
| CN106893574B (en) | A kind of pressure break slow release type biological enzyme breaker and preparation method thereof | |
| CN104031623A (en) | Organic bentonite for white oil-based drilling fluid and preparation method thereof | |
| CN107502321A (en) | A kind of novel foam drilling fluid system and preparation method thereof | |
| Neaman et al. | Rheology of mixed palygorskite-montmorillonite suspensions | |
| CN107064250B (en) | A kind of pucherite-polyacid gas sensing nanocomposite preparation method | |
| CN108003848B (en) | Supramolecular materials and preparation method thereof and the application in without native phase water-base drilling fluid as extracting and cutting agent | |
| CN108329896B (en) | High-temperature-resistant artificial clay, preparation method thereof and water-based drilling fluid | |
| CN105670598A (en) | Preparation method of potassium persulfate microcapsule gel breaker | |
| CN106520109B (en) | A kind of preparation method of modified by nano particles clean fracturing fluid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |