CN111690384A - Production method of salt-resistant bentonite - Google Patents
Production method of salt-resistant bentonite Download PDFInfo
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- CN111690384A CN111690384A CN202010702448.3A CN202010702448A CN111690384A CN 111690384 A CN111690384 A CN 111690384A CN 202010702448 A CN202010702448 A CN 202010702448A CN 111690384 A CN111690384 A CN 111690384A
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- bentonite
- salt
- resistant
- sand
- water
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Links
- 229910000278 bentonite Inorganic materials 0.000 title claims abstract description 71
- 239000000440 bentonite Substances 0.000 title claims abstract description 71
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 150000003839 salts Chemical class 0.000 title claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 229940092782 bentonite Drugs 0.000 claims abstract description 70
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 37
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 32
- 239000002002 slurry Substances 0.000 claims abstract description 29
- 239000004576 sand Substances 0.000 claims abstract description 27
- 239000002689 soil Substances 0.000 claims abstract description 26
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims abstract description 19
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims abstract description 19
- 239000000230 xanthan gum Substances 0.000 claims abstract description 18
- 229920001285 xanthan gum Polymers 0.000 claims abstract description 18
- 235000010493 xanthan gum Nutrition 0.000 claims abstract description 18
- 229940082509 xanthan gum Drugs 0.000 claims abstract description 18
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims abstract description 17
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000005553 drilling Methods 0.000 claims abstract description 16
- 235000017550 sodium carbonate Nutrition 0.000 claims abstract description 16
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 16
- 239000002245 particle Substances 0.000 claims abstract description 10
- 239000000725 suspension Substances 0.000 claims abstract description 10
- 239000013535 sea water Substances 0.000 claims abstract description 9
- 239000011734 sodium Substances 0.000 claims abstract description 8
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 8
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 6
- ONCZQWJXONKSMM-UHFFFAOYSA-N dialuminum;disodium;oxygen(2-);silicon(4+);hydrate Chemical compound O.[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Na+].[Na+].[Al+3].[Al+3].[Si+4].[Si+4].[Si+4].[Si+4] ONCZQWJXONKSMM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000004806 packaging method and process Methods 0.000 claims abstract description 6
- 229940080314 sodium bentonite Drugs 0.000 claims abstract description 6
- 229910000280 sodium bentonite Inorganic materials 0.000 claims abstract description 6
- 239000000314 lubricant Substances 0.000 claims abstract description 4
- 230000001050 lubricating effect Effects 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 239000000843 powder Substances 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 8
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 7
- 150000001768 cations Chemical class 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 238000001179 sorption measurement Methods 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 239000003463 adsorbent Substances 0.000 claims description 4
- 210000004027 cell Anatomy 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 238000004945 emulsification Methods 0.000 claims description 4
- 239000003995 emulsifying agent Substances 0.000 claims description 4
- 150000004676 glycans Chemical class 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 239000003921 oil Substances 0.000 claims description 4
- 229920001282 polysaccharide Polymers 0.000 claims description 4
- 239000005017 polysaccharide Substances 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- 239000003381 stabilizer Substances 0.000 claims description 4
- 239000002562 thickening agent Substances 0.000 claims description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- 235000010755 mineral Nutrition 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- WQZGKKKJIJFFOK-QTVWNMPRSA-N D-mannopyranose Chemical compound OC[C@H]1OC(O)[C@@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-QTVWNMPRSA-N 0.000 claims description 2
- IAJILQKETJEXLJ-UHFFFAOYSA-N Galacturonsaeure Natural products O=CC(O)C(O)C(O)C(O)C(O)=O IAJILQKETJEXLJ-UHFFFAOYSA-N 0.000 claims description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- CQBLUJRVOKGWCF-UHFFFAOYSA-N [O].[AlH3] Chemical compound [O].[AlH3] CQBLUJRVOKGWCF-UHFFFAOYSA-N 0.000 claims description 2
- OBNDGIHQAIXEAO-UHFFFAOYSA-N [O].[Si] Chemical compound [O].[Si] OBNDGIHQAIXEAO-UHFFFAOYSA-N 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- AEMOLEFTQBMNLQ-WAXACMCWSA-N alpha-D-glucuronic acid Chemical compound O[C@H]1O[C@H](C(O)=O)[C@@H](O)[C@H](O)[C@H]1O AEMOLEFTQBMNLQ-WAXACMCWSA-N 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 claims description 2
- 239000004566 building material Substances 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 239000011083 cement mortar Substances 0.000 claims description 2
- 239000012459 cleaning agent Substances 0.000 claims description 2
- 239000000084 colloidal system Substances 0.000 claims description 2
- 239000003086 colorant Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 239000002537 cosmetic Substances 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims description 2
- 210000002858 crystal cell Anatomy 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 239000003599 detergent Substances 0.000 claims description 2
- 239000003814 drug Substances 0.000 claims description 2
- 239000010408 film Substances 0.000 claims description 2
- 238000005189 flocculation Methods 0.000 claims description 2
- 230000016615 flocculation Effects 0.000 claims description 2
- 230000009969 flowable effect Effects 0.000 claims description 2
- 238000005187 foaming Methods 0.000 claims description 2
- 235000013305 food Nutrition 0.000 claims description 2
- 238000005816 glass manufacturing process Methods 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 238000005342 ion exchange Methods 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- FFQQCJGNKKIRMD-UHFFFAOYSA-N methyl n-(3-hydroxyphenyl)carbamate Chemical compound COC(=O)NC1=CC=CC(O)=C1 FFQQCJGNKKIRMD-UHFFFAOYSA-N 0.000 claims description 2
- 230000000813 microbial effect Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000008239 natural water Substances 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- 235000011837 pasties Nutrition 0.000 claims description 2
- 239000003208 petroleum Substances 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 239000011435 rock Substances 0.000 claims description 2
- 239000012266 salt solution Substances 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- 239000013049 sediment Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- XJKVPKYVPCWHFO-UHFFFAOYSA-N silicon;hydrate Chemical compound O.[Si] XJKVPKYVPCWHFO-UHFFFAOYSA-N 0.000 claims description 2
- 239000000344 soap Substances 0.000 claims description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims description 2
- 239000000375 suspending agent Substances 0.000 claims description 2
- 239000004753 textile Substances 0.000 claims description 2
- 239000002888 zwitterionic surfactant Substances 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims 1
- 230000001737 promoting effect Effects 0.000 claims 1
- 235000002639 sodium chloride Nutrition 0.000 abstract description 33
- 238000001035 drying Methods 0.000 abstract description 3
- 238000000227 grinding Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 238000005728 strengthening Methods 0.000 abstract 1
- 239000008187 granular material Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000013505 freshwater Substances 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
Images
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
Abstract
A production method of salt-resistant bentonite is characterized by comprising the following steps: the bentonite is widely used for wall strengthening in oil and gas field drilling, cold drill bit determination, sand removal and earth pressure balance, is also an important lubricant and sand carrying agent for lubricating a drilling rod, adopts seawater with salt content for slurry preparation, meets the baume degree requirement on the heavy surface side to meet the use requirement, and consists of bentonite raw ore soil, sodium carbonate, xanthan gum, hydroxypropyl methyl cellulose and salt-resistant suspension sand carrying agent in a formula; the production process comprises the steps of drying raw ore soil in the sun or drying and dehydrating the raw ore soil in a dryer, carrying out sodium treatment on the dried and dehydrated ore soil to modify the dried and dehydrated ore soil into sodium bentonite, adding 3.5-4% of soda ash, crushing the ore soil in a crusher, and conveying the particles into a feeding bin of a Raymond mill by a belt conveyor; and simultaneously adding the salt-resistant suspended sand-carrying agent premix, xanthan gum and hydroxypropyl methyl cellulose, grinding at the same time, wherein the granularity of the product reaches about 200 meshes, conveying the finished product into a finished product bin by a lifter, and packaging the packaged finished product into a warehouse or loading the finished product for outward transportation.
Description
Technical Field
A method for producing salt-resistant bentonite, which belongs to the technical field of chemical production.
Background
The bentonite slurry is used for drilling in an offshore oil and gas field, is a main lubricant and a sand carrying agent for lubricating a shaft wall fixing and a drilling rod, the slurry making water in the sea is used for conveying fresh water from the land to a drilling platform to mix and make slurry, the fresh water is conveyed due to large using amount, the production cost is obviously high, if seawater with salt is used for making slurry, the convenience is high, the production cost is greatly reduced, however, the seawater making slurry contains salt, the specific gravity of the slurry is obviously higher than that of the fresh water slurry, the common bentonite is used for making slurry by using seawater, the concentration of the slurry, namely baume degree (Bh), does not meet the required requirement, just like a farmer selects a seed by using saline water, the bentonite is quickly precipitated by the salt and cannot suspend in water, the drilling lubrication function during the drilling of the shaft wall fixing and the drilling can be greatly reduced, and sand particles cannot be carried out of a drill hole along with the bentonite slurry.
Disclosure of Invention
In order to solve the problems, the invention develops the salt-resistant bentonite capable of slurrying with seawater to meet the requirements of the exploitation of the marine oil gas field.
In order to solve the technical problems, the invention develops the salt-resistant bentonite capable of being slurried by seawater, which is characterized in that: the bentonite is widely used for wall fixing of drilling mud and sand in oil and gas field exploitation, cold drill bit confirmation, sand grain clearing and earth pressure balancing, is also an important lubricant and sand carrying agent for lubricating a drilling rod, and is characterized by high slurry yield and low use cost.
The salt-resistant bentonite is prepared by adopting seawater with the salt content of about 5 percent to make slurry, and the Baume degree requirement of the heavy surface side reaches 20Bh, thus being a qualified product.
The formula of the salt-resistant bentonite produced by the invention comprises bentonite raw ore, soda ash, xanthan gum, hydroxypropyl methyl cellulose and salt-resistant suspended sand-carrying agent.
Wherein the formula parameters are as follows: 93-95% of bentonite raw ore soil, 3.5-4% of soda ash, 1-1.5% of xanthan gum, 0.5-1% of hydroxypropyl methyl cellulose and 1.5-2.5% of salt-resistant suspended sand-carrying agent.
The bentonite raw ore soil is a clayey rock, namely, bentonite and bentonite, wherein the bentonite raw ore soil is a nonmetallic mineral product taking montmorillonite as a main component, wherein the content of the montmorillonite is 85-90 percent, the montmorillonite presents various colors such as yellow green, yellow white, gray, white and the like, the bentonite raw ore soil is rubbed by fingers to have a smooth feeling, small blocks are added with water to swell by a plurality of times to 20-30 times, the small blocks are suspended in water and pasty when the water is little, and the medium solution has certain viscosity, thixotropy and lubricity; the structure is a 2:1 type crystal structure consisting of two silicon-oxygen tetrahedrons sandwiching a layer of aluminum-oxygen octahedron, a layered structure formed by unit cells has certain cations such as Cu, Mg, Na, K and the like, and the cations and the unit cells have unstable effects and are easy to exchange with other cations, so the crystal cells have better ion exchange performance; the adsorbent has certain adsorption capacity on various gases, liquids and organic substances, the maximum adsorption capacity can reach 5 times of the self weight, and the admixture of the adsorbent and water and sand has plasticity and cohesiveness; more than 300 products are used in more than 20 fields such as agricultural production and the like at present, which are called universal soil by people.
The bentonite contains aluminum oxide, silicon dioxide, water and a small amount of elements such as iron, calcium, magnesium, sodium, potassium and the like, so that the bentonite has stronger moisture absorption performance and expansion performance of montmorillonite.
Soda ash, known as sodium carbonate, soda and sodium carbonate, has a chemical formula of Na2CO3, belongs to salts, is used for the fields of production of chemicals, cleaning agents, pharmacy, glass making, soap, paper making, textile and the like, is white powder, is easy to dissolve in water, is alkaline in aqueous solution, can absorb CO2 and water when exposed in the air at normal temperature, releases heat, and gradually turns into NaHCO3 to be agglomerated.
Xanthan gum, also known as xanthan gum, is a thickening agent, a suspending agent, an emulsifying agent and a stabilizing agent, is microbial polysaccharide widely applied in dry food, petroleum, chemical industry, medicine and other industries, is a polysaccharide high molecular compound consisting of D-mannose, D-glucose and D-glucuronic acid, has a relative molecular weight of more than 100 ten thousand, has a secondary structure that side chains are reversely wound around a main chain framework, forms a rod-shaped double-spiral structure through hydrogen bond, is light yellow to white superfine flowable powder, has slight odor, is easy to dissolve in cold water and hot water, the water-soluble hydrophilic gel is dispersed and emulsified in water to form stable hydrophilic viscous colloid, has the stability to heat and acid and alkali, more importantly, the stability to salt, can still keep the solubility of the hydrophilic gel in saturated salt solution without precipitation and flocculation, and is not influenced on the viscosity, suspension and emulsification performance of the hydrophilic gel.
Hydroxypropyl methylcellulose, called HPMC or MHPC in English, is a semi-synthetic, inactive and viscoelastic polymer, the product is white powder, and the water-retaining agent, retarder and adhesive of cement mortar improve the adhesive property of slurry granules, and the hydroxypropyl methylcellulose is used as a thickening agent, a stabilizing agent, an emulsifying agent, a film forming agent and the like in the production of petrochemical industry, detergents, building materials, papermaking and cosmetics.
The salt-resistant suspended sand-carrying agent is a zwitterionic surfactant with strong salt resistance and foaming promotion performance; the bentonite foam sand carrier has a sand carrying performance on the adsorption effect of solid sand particles, has stronger attraction on sand particles with electronegativity in a stratum, disperses and stably suspends insoluble fine sand particles on the surface of foam, and further carries the insoluble fine sand particles out of a shaft, and the excellent suspended sand carrying function of the bentonite foam sand carrier also provides help for the salt-resistant slurry yield of the bentonite.
Dewatering the raw ore soil: in the production process, raw ore soil is firstly dried in the sun or is dried and dehydrated in a dryer, and the natural water content is required to be below 14-16%.
The dried and dehydrated ore soil is subjected to sodium treatment to be modified into sodium bentonite.
Firstly, adding 3.5-4% of soda into dried and dehydrated ore soil, simultaneously crushing the ore soil into granules below 10-30 mm in a crusher, and conveying the granules into a feeding bin of a Raymond mill by a belt conveyor.
The premixing of the salt-resistant suspended sand-carrying agent is to premix the bentonite fine powder and the salt-resistant suspended sand-carrying agent in a mixer according to the proportion of 10:1, the prepared salt-resistant suspended sand-carrying agent premix is fed into a feeder hopper, and a feeding belt conveyor for conveying sodium bentonite to a Raymond mill is added into the feeder hopper by a feeder according to the proportion and is fed into the Raymond mill hopper.
The xanthan gum and the hydroxypropyl methyl cellulose are respectively put into respective raw material bins and feeder hoppers, and are added into a belt conveyor according to the formula proportion to be fed into the hopper of the Raymond mill.
The Raymond mill grinds the bentonite and various additives simultaneously, the granularity of the bentonite and various additives reaches about 200 meshes, a discharge port of the Raymond mill is connected with a feed inlet of a hoister, and the hoister feeds finished products into a finished product bin.
And a packaging machine is arranged at the outlet of the finished product bin, and the packaged finished product is packed into a warehouse or loaded and transported outside.
A salt-resistant bentonite has the following advantages.
The salt-resistant bentonite can be made into slurry by using seawater with salt, and the slurry yield and baume degree thereof can meet the expected requirements.
The bentonite is added with xanthan gum and hydroxypropyl methyl cellulose, so that the viscosity and concentration of the slurry can be effectively improved, the slurry has the characteristics of suspension, emulsification and stability, and the Baume degree of the slurry is not lower than 20Bh by using a gravimetric scale for detection.
The salt-resistant suspension sand carrying agent is added in the product, the broken sediment in the drilling process can effectively overflow from a well mouth along with the stably suspended foam, the load of the drilling rod can be reduced, and the slurry yield of bentonite can be improved.
Drawings
The invention will be further explained with reference to the drawings.
The attached figure is a process flow chart of a salt-resistant bentonite production system.
In the attached drawing, 1, a bentonite ore bin, 2, a rotary dryer, 3, a soda bin and a feeder, 4, a crusher, 5, a belt conveyor, 6, a xanthan gum bin and a feeder, 7, a salt-resistant suspended sand-carrying agent pre-mixing bin and a feeder, 8, a stirrer, 9, a premixed bentonite powder hopper, 10, a hydroxypropyl methyl cellulose bin and a feeder, 11, a Raymond mill, 12, a lifter, 13, a finished product bin, 14, a packaging machine and 15, a finished product bin.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
A production method of salt-resistant bentonite comprises a bentonite ore warehouse 1, a rotary dryer 2, a soda bin and feeder 3, a crusher 4, a belt conveyor 5, a xanthan gum bin and feeder 6, a salt-resistant suspended sand-carrying agent pre-mixing bin and feeder 7, a stirrer 8, a bentonite powder hopper for pre-mixing 9, a hydroxypropyl methyl cellulose bin and feeder 10, a Raymond mill 11, a lifter 12, a finished product warehouse 13, a packaging machine 14 and a finished product warehouse 15.
Dewatering the raw ore soil: in the production process, raw ore soil is firstly dried and stored in a bentonite ore warehouse 1 and is sent into a rotary dryer 2 by a belt conveyor 5 for drying and dehydration, and the water content of discharged materials is required to be below 14-16%.
The mineral soil dehydrated by the rotary dryer 2 is subjected to sodium treatment to be modified into sodium bentonite.
Firstly, the ore soil dehydrated by a rotary dryer 2 enters a crusher 4, 3.5-4% of soda ash is added at the same time, the mixture is crushed into granules with the particle size of below 10-30 mm, and the granules are sent into a feed hopper of a Raymond mill 11 by a belt conveyor 5.
The bentonite fine powder screened by the bentonite ore warehouse is sent into a bentonite powder hopper 9 for premixing by a forklift, the outlet of the bentonite powder hopper is connected with a feed hopper of a stirrer 8, the discharge port of the stirrer 8 is connected with a pre-mixing silo of the anti-salt suspension sand-carrying agent and the feed inlet of a feeder 7, and the outlets of the pre-mixing silo of the anti-salt suspension sand-carrying agent and the feeder 7 are connected with a belt conveyer 5.
The bentonite fine powder and the salt-resistant suspended sand-carrying agent are added into a stirrer for premixing by manpower according to the proportion of 10:1, the prepared salt-resistant suspended sand-carrying agent premix enters a salt-resistant suspended sand-carrying agent premixing bin and a feeder 7, and is added into a belt conveyor 5 by the feeder according to the proportion of 15-25% and is fed into a feeding hopper of a Raymond mill 11.
The xanthan gum and the hydroxypropyl methyl cellulose are respectively put into a feed hopper of a xanthan gum bin and a feeder 6 and a feed hopper of a hydroxypropyl methyl cellulose bin and a feeder 10, and are added into a belt conveyer 5 according to the formula proportion of 1-1.5 percent and 0.5-1 percent and are sent into a feeding bin of a Raymond mill 11.
The Raymond mill 5 grinds the bentonite and the additives simultaneously, and the granularity of the bentonite and the additives is required to reach about 200 meshes.
The discharge hole of the Raymond mill 5 is connected with the feed hole of a hoister 12, and the hoister 12 sends the finished products into a finished product warehouse 13.
The outlet of the finished product warehouse 13 is provided with a packaging machine 14, and the packaged finished products are sent to a finished product warehouse 15 or loaded and transported outside.
Claims (5)
1. A production method of salt-resistant bentonite is characterized by comprising the following steps: the bentonite is widely used for wall fixing of drilling mud and sand in oil and gas field exploitation, a cold drill bit is used for removing sand grains and balancing earth pressure, the bentonite is also an important lubricant and sand carrying agent for lubricating a drilling rod, the bentonite has high slurry yield and low use cost, and is also a main characteristic of the bentonite, the salt-resistant bentonite adopts seawater with the salt content of about 5 percent to make slurry, and the baume degree requirement of the bentonite on the heavy surface side meets the use requirement: the formula of the salt-resistant bentonite comprises bentonite raw ore soil, soda ash, xanthan gum, hydroxypropyl methyl cellulose and a salt-resistant suspension sand-carrying agent; the bentonite raw ore soil is a clay rock, and is a nonmetallic mineral product taking montmorillonite as a main component, wherein the montmorillonite content is 85-90%, the montmorillonite is in various colors such as yellow green, yellow white, gray, white and the like, the bentonite raw ore soil is rubbed and ground by fingers to have a smooth feeling, small blocks are added with water to swell by a plurality of times to 20-30 times, the small blocks are suspended in water and are pasty when the water is little, and the medium solution has certain viscosity, thixotropy and lubricity; the structure is a 2:1 type crystal structure consisting of two silicon-oxygen tetrahedrons sandwiching a layer of aluminum-oxygen octahedron, a layered structure formed by unit cells has certain cations such as Cu, Mg, Na, K and the like, and the cations and the unit cells have unstable effects and are easy to exchange with other cations, so the crystal cells have better ion exchange performance; the adsorbent has certain adsorption capacity on various gases, liquids and organic substances, the maximum adsorption capacity can reach 5 times of the self weight, and the admixture of the adsorbent and water and sand has plasticity and cohesiveness; the bentonite contains aluminum oxide, silicon dioxide, water and a small amount of elements such as iron, calcium, magnesium, sodium, potassium and the like, so that the bentonite has stronger moisture absorption performance and expansion performance; soda ash, which is known as sodium carbonate, soda and sodium carbonate, has a chemical formula of Na2CO3, belongs to salts, is used for the fields of production of chemicals, cleaning agents, pharmacy, glass making, soap, paper making, textile and the like, is white powder, is easy to dissolve in water, is alkaline in aqueous solution, can absorb CO2 and water when exposed in the air at normal temperature, releases heat, and gradually turns into NaHCO3 to be agglomerated; xanthan gum, also known as xanthan gum, is a thickening agent, a suspending agent, an emulsifying agent and a stabilizing agent, is microbial polysaccharide widely applied in dry food, petroleum, chemical industry, medicine and other industries, is a polysaccharide high molecular compound consisting of D-mannose, D-glucose and D-glucuronic acid, has a relative molecular weight of more than 100 ten thousand, has a secondary structure that side chains are reversely wound around a main chain framework, forms a rod-shaped double-spiral structure through hydrogen bond, is light yellow to white superfine flowable powder, has slight odor, is easy to dissolve in cold water and hot water, the water-soluble hydrophilic gel is dispersed and emulsified in water to form stable hydrophilic viscous colloid, has stability to heat and acid and alkali, more importantly, has stability to salt, can keep the solubility of the hydrophilic gel without precipitation and flocculation even in saturated salt solution, and has no influence on the viscosity, suspension and emulsification performance of the hydrophilic gel; hydroxypropyl methylcellulose, namely HPMC or MHPC in English name, is a semi-synthetic, inactive and viscoelastic polymer, the product is white powder, and the water-retaining agent, retarder and adhesive of cement mortar improve the adhesive property of slurry particles, and are used as thickening agent, stabilizing agent, emulsifying agent, film forming agent and the like in the production of petrochemical industry, detergents, building materials, papermaking and cosmetics; the salt-resistant suspended sand-carrying agent is a zwitterionic surfactant with strong salt resistance and capability of promoting foaming, has sand-carrying performance due to the adsorption effect on solid sand grains, has strong attraction on sand grains with electronegativity in the stratum, disperses and stably suspends insoluble fine sand grains on the surface of foam, and further carries the insoluble fine sand grains out of a shaft, and the excellent suspended sand-carrying function of the salt-resistant suspended sand-carrying agent also helps the salt-resistant slurry yield of bentonite; in the production process, firstly, the raw ore soil is dried in the sun or dried and dehydrated in a dryer to be subjected to sodium treatment so as to be modified into sodium bentonite, 3.5-4% of soda ash is added, the mixture enters a crusher to be crushed into particles below 10-30 mm, and the particles are conveyed to a feeding bin of a Raymond mill by a belt conveyor; the premixing of the salt-resistant suspended sand-carrying agent is to premix the bentonite fine powder and the salt-resistant suspended sand-carrying agent in a stirrer according to the proportion of 10:1, the prepared salt-resistant suspended sand-carrying agent premix is fed into a feeder hopper, and sodium bentonite is conveyed into a feeding belt conveyor of a Raymond mill by the feeder according to the proportion and is fed into the feeder hopper of the Raymond mill; respectively putting xanthan gum and hydroxypropyl methyl cellulose into respective raw material bin and feeder hopper, adding into belt conveyer according to formula ratio, and feeding into Raymond mill feeder hopper; the Raymond mill grinds the bentonite and various additives simultaneously, the granularity requirement reaches about 200 meshes, the discharge port of the Raymond mill is connected with the feed inlet of a hoister, and the hoister feeds the finished products into a finished product bin; and a packaging machine is arranged at the outlet of the finished product bin, and the packaged finished product is packed into a warehouse or loaded and transported outside.
2. The method for producing salt-resistant bentonite according to claim 1, wherein the method comprises the following steps: the formula parameters are as follows: 93-95% of bentonite raw ore soil, 3.5-4% of soda ash, 1-1.5% of xanthan gum, 0.5-1% of hydroxypropyl methyl cellulose and 1.5-2.5% of salt-resistant suspended sand-carrying agent.
3. The method for producing salt-resistant bentonite according to claim 1, wherein the method comprises the following steps: in the production process, raw ore soil is firstly dried in the sun or is dried and dehydrated in a dryer, and the natural water content is required to be below 14-16%.
4. The method for producing salt-resistant bentonite according to claim 1, wherein the method comprises the following steps: the bentonite is added with xanthan gum and hydroxypropyl methyl cellulose, so that the viscosity and concentration of the slurry can be effectively improved, the slurry has the characteristics of suspension, emulsification and stability, and the Baume degree of the slurry is not lower than 20Bh by using a gravimetric scale for detection.
5. The method for producing salt-resistant bentonite according to claim 1, wherein the method comprises the following steps: the salt-resistant suspension sand carrying agent is added in the product, the broken sediment in the drilling process can effectively overflow from a well mouth along with the stably suspended foam, the load of the drilling rod can be reduced, and the slurry yield of bentonite can be improved.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116063995A (en) * | 2023-01-28 | 2023-05-05 | 潍坊远东膨润土有限公司 | Composite bentonite and preparation method thereof |
| CN116355601A (en) * | 2023-02-27 | 2023-06-30 | 桂林理工大学 | Sand pebble large-aperture stratum wall protection slurry and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102476804A (en) * | 2010-11-27 | 2012-05-30 | 中国科学院兰州化学物理研究所 | Preparation method of modified attapulgite clay for drilling fluid |
| CN102911654A (en) * | 2012-10-31 | 2013-02-06 | 中国石油天然气股份有限公司 | Foaming agent for efficiently carrying fluid and sand for gas well and preparation method and application of foaming agent |
| CN103253894A (en) * | 2012-11-27 | 2013-08-21 | 四会市飞来峰非金属矿物材料有限公司 | Organic-inorganic composite water-soluble dry powder |
| CN107418530A (en) * | 2017-09-05 | 2017-12-01 | 宣化燕北矿业有限责任公司 | A kind of preparation method of seawater drilling well composite earth |
| CN109133737A (en) * | 2018-08-22 | 2019-01-04 | 天津大学 | A kind of salt resistance mud and preparation method thereof being adapted to seabed shield-tunneling construction |
-
2020
- 2020-07-18 CN CN202010702448.3A patent/CN111690384A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102476804A (en) * | 2010-11-27 | 2012-05-30 | 中国科学院兰州化学物理研究所 | Preparation method of modified attapulgite clay for drilling fluid |
| CN102911654A (en) * | 2012-10-31 | 2013-02-06 | 中国石油天然气股份有限公司 | Foaming agent for efficiently carrying fluid and sand for gas well and preparation method and application of foaming agent |
| CN103253894A (en) * | 2012-11-27 | 2013-08-21 | 四会市飞来峰非金属矿物材料有限公司 | Organic-inorganic composite water-soluble dry powder |
| CN107418530A (en) * | 2017-09-05 | 2017-12-01 | 宣化燕北矿业有限责任公司 | A kind of preparation method of seawater drilling well composite earth |
| CN109133737A (en) * | 2018-08-22 | 2019-01-04 | 天津大学 | A kind of salt resistance mud and preparation method thereof being adapted to seabed shield-tunneling construction |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116063995A (en) * | 2023-01-28 | 2023-05-05 | 潍坊远东膨润土有限公司 | Composite bentonite and preparation method thereof |
| CN116063995B (en) * | 2023-01-28 | 2023-06-20 | 潍坊远东膨润土有限公司 | Composite bentonite and preparation method thereof |
| CN116355601A (en) * | 2023-02-27 | 2023-06-30 | 桂林理工大学 | Sand pebble large-aperture stratum wall protection slurry and preparation method thereof |
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