CN105586027A - Preparation method of shale gas production fracturing propping agent - Google Patents

Preparation method of shale gas production fracturing propping agent Download PDF

Info

Publication number
CN105586027A
CN105586027A CN201610152275.6A CN201610152275A CN105586027A CN 105586027 A CN105586027 A CN 105586027A CN 201610152275 A CN201610152275 A CN 201610152275A CN 105586027 A CN105586027 A CN 105586027A
Authority
CN
China
Prior art keywords
parts
shale gas
fracturing propping
propping agents
preparation
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.)
Pending
Application number
CN201610152275.6A
Other languages
Chinese (zh)
Inventor
吕国祥
张鑫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHENGDU CHUANGYUAN OIL AND GAS TECHNOLOGY DEVELOPMENT Co Ltd
Original Assignee
CHENGDU CHUANGYUAN OIL AND GAS TECHNOLOGY DEVELOPMENT Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHENGDU CHUANGYUAN OIL AND GAS TECHNOLOGY DEVELOPMENT Co Ltd filed Critical CHENGDU CHUANGYUAN OIL AND GAS TECHNOLOGY DEVELOPMENT Co Ltd
Priority to CN201610152275.6A priority Critical patent/CN105586027A/en
Publication of CN105586027A publication Critical patent/CN105586027A/en
Pending legal-status Critical Current

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
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/80—Compositions for reinforcing fractures, e.g. compositions of proppants used to keep the fractures open
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/16—Lean materials, e.g. grog, quartz
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
    • C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide
    • C04B35/185—Mullite 3Al2O3-2SiO2
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/6261—Milling
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
    • C04B35/62655—Drying, e.g. freeze-drying, spray-drying, microwave or supercritical drying
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62695—Granulation or pelletising
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3201—Alkali metal oxides or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
    • C04B2235/3212—Calcium phosphates, e.g. hydroxyapatite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3284—Zinc oxides, zincates, cadmium oxides, cadmiates, mercury oxides, mercurates or oxide forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3427—Silicates other than clay, e.g. water glass
    • C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/442—Carbonates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/448—Sulphates or sulphites
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5276—Whiskers, spindles, needles or pins
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/77—Density
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/94—Products characterised by their shape
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Crushing And Grinding (AREA)

Abstract

The invention discloses a preparation method of a shale gas production fracturing propping agent. The agent is prepared from, by weight, 20-30 parts of alunite expanding agent, 20-30 parts of calcium oxide expanding agent, 70-85 parts of kaoline, 5-10 parts of bentonite, 5-10 parts of quartz, 3-5 parts of feldspar, 2-3 parts of carbonate mineral, 1-3 parts of zinc oxide whisker and 1-3 parts of tertiary calcium phosphate. Through the continuous dry grinding process and the continuous wet grinding process, material uniformity is improved; through a compound sintering aid, solid-phase sintering is promoted; by controlling the heat-preservation sintering mode of ball blanks at different parts of a mechanical shaft kiln or a rotary kiln, the formation of long columnar mullite is promoted, and the content of columnar mullite in a product reaches 70-80%.

Description

A kind of for exploiting the preparation method of shale gas fracturing propping agents
Technical field
The present invention relates to a kind of shale gas exploitation field, be specifically related to a kind of for exploiting the system of shale gas fracturing propping agentsPreparation Method.
Background technology
Shale gas fracturing technique is to extrude crack by fracturing fluid to stratum shale, is the mobile passage of opening of shale gas,Prevent crack closure under formation closure pressure condition, need to use fracturing propping agents. Fracturing propping agents enter stratum with fracturing fluidShale gap, resident in the gap forming at fracturing fluid, stopping the closure in shale crack, form a high flow conductivitySupport belt. Therefore, fracturing propping agents are to affect the critical material that shale gas exploitation is collected. In the exploitation of oil, conventional gasIn process, also can use proppant, but because oil, conventional gas are present in discrete rock, clossing pressure is low, spaceRelatively many, so not high to the requirement of fracturing propping agents. But in the exploitation of shale gas, shale is fine and close aggregation,The gap that fracturing fluid forms is easy under high clossing pressure closed, and it is non-that the collection shale gas of gathering is split in the space of therefore supporting shaleOften important, require proppant to there is high strength to avoid shale gap closure.
Shale gas is exploited fracturing propping agents used and is mainly quartz sand and ceramic particle at present. The pressure-bearing of general quartz sandAbility is at 35MPa, percentage of damage≤10%; The bearing capacity 52MPa of ceramic particle, percentage of damage≤25%; 69MPa, percentage of damage≤ 20%; And the closing force of deep layer shale can reach 100MPa, common quartz sand and ceramic particle are difficult to reach shale exploitationIn support strength requirement. In addition, haydite materials mainly adopts bauxite, and production cost is too high, and resource is rare gradually, largeScale utilizes bauxite to prepare haydite to be subject to for shale gas exploitation the restriction of bauxite resource.
Summary of the invention
Object of the present invention is to overcome the deficiencies in the prior art, provides a kind of for exploiting shale gas fracturing propping agentsPreparation method.
Of the present invention being achieved through the following technical solutions: a kind of for exploiting the preparation method of shale gas fracturing propping agents,It is characterized in that:
(1) raw material and weight portion: alumite plumping agent 20-30 part, calcium oxide swelling agent 20-30 part, kaolin 70-85Part, bentonite 5-10 part, quartzy 5-10 part, feldspar 3-5 part, carbonate mineral 2-3 part, ZnOw 1-3Part, tricalcium phosphate 1-3 part;
(2) dry grinding continuously: the raw material that step (1) is prepared packs continuous dry method ball mill ball milling into by automatical feeding system,Cross 200 mesh sieves, obtain expecting powder; Milling parameters is: taking stainless steel ball as abrasive media, and the quality of raw material and stainless steel ballThan being 1:5～3;
(3) continuous wet-grinding: step (2) gained powder is sent into continuous wet-grinding machine by automatical feeding system and carry out continuous wet-grindingReach 5～20 microns to mud granularity, then send into the old 24 ± 2h of mud pit; Milling parameters is: with stainless steelBall is abrasive media, and the mass ratio of raw material, stainless steel ball and water is 1:2.5～3.5:0.5;
(4) mist projection granulating: the mud after old step (3) is pumped into spray drying tower and carry out drying-granulating, obtain water contentIt is 0.1～0.5% discrete particles;
(5) powder material scattering: use the equipment of breaing up that the discrete particles of step (4) gained is broken up again as grain after continuous wet-grindingThe powder in footpath;
(6) step (5) gained powder being obtained to granularity through nodulizer rolling is the spherical base substrate of 20-40 object proppant;
(7) the spherical base substrate of proppant step (6) being obtained is dry 30 ± 2h at 120～140 DEG C of temperature, then existsIn cement mechanized shaft kiln or rotary kiln, fire and obtain the special fracturing propping agents of the high-intensity shale gas of extremely-low density.
Further, described step (7) fires in cement mechanized shaft kiln that to obtain the high-intensity shale gas of extremely-low density specialWith fracturing propping agents; In cement mechanized shaft kiln with the firing rate of 8～25 DEG C/min from room temperature be warming up to 1200～1350 DEG C are burnt till, and insulation 2～6h, is wherein incubated 1h 800 DEG C time, is incubated 1h 1000 DEG C time; Again with 25～45 DEG C/The cooling velocity cooling of min.
Further, described step (7) is fired and is obtained the special pressure break of the high-intensity shale gas of extremely-low density in rotary kilnProppant; The rotating speed of described rotary kiln is 2-5 rev/min, and the highest firing temperature is 1380-1420 DEG C.
The present invention compared with prior art, has following advantage and beneficial effect:
1, the present invention is dry grinded and is improved material uniformity, urgees by complex sintering aids with continuous type wet grinding process by continous wayEnter solid-phase sintering; Jointly promote long by controlling ball base at the firing mode of mechanical type shaft kiln or the insulation of rotary kiln different partsThe formation of rod-like mullite, in product, the content of rod-like mullite reaches 70-80%.
2, the present invention adopts continous way dry method ball milling to add wet-grinding technology and relative device, guarantees uniformity, the stability of each raw material in slurry,Improved grinding efficiency, employing equipment is few, and floor space is few, has reduced cost of investment, can also serialization produce energy consumption simultaneouslyLittle; Adopt the stainless steel ball that quality is large is abrasive media simultaneously, improves grinding efficiency.
3, special fracturing propping agents of shale gas of the present invention and preparation method thereof utilize ready-made ripe device fabrication, without increaseOther equipment investments, can produce the special fracturing propping agents of high-performance shale gas with lower cost, have significant societyBenefit, environmental benefit, economic benefit.
Brief description of the drawings
Accompanying drawing described herein is used to provide the further understanding to the embodiment of the present invention, forms of the applicationPoint, do not form the restriction to the embodiment of the present invention. In the accompanying drawings:
Fig. 1 is the embodiment of the present invention 1 pressure and the broken rate test intention that falls;
Fig. 2 is the embodiment of the present invention 2 pressure and the broken rate test intention that falls.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, to thisInvention is described in further detail, and exemplary embodiment of the present invention and explanation thereof, only for explaining the present invention, are not doneFor limitation of the invention.
Embodiment 1
For exploiting a preparation method for shale gas fracturing propping agents, it is characterized in that:
(1) raw material and weight portion: 20 parts of alumite plumping agents, 20 parts of calcium oxide swelling agents, 70 parts of kaolin, bentonite 5Part, 5 parts, quartz, 3 parts of feldspars, 2 parts of carbonate minerals, 1 part of ZnOw, 1 part of tricalcium phosphate;
(2) dry grinding continuously: the raw material that step (1) is prepared packs continuous dry method ball mill ball milling into by automatical feeding system,Cross 200 mesh sieves, obtain expecting powder; Milling parameters is: taking stainless steel ball as abrasive media, and the matter of raw material and stainless steel ballAmount is than being 1:5;
(3) continuous wet-grinding: step (2) gained powder is sent into continuous wet-grinding machine by automatical feeding system and carry out continuous wet-grindingReach 5 microns to mud granularity, then send into mud pit old 24; Milling parameters is: taking stainless steel ball as grinding mediumMatter, the mass ratio of raw material, stainless steel ball and water is 1:2.5;
(4) mist projection granulating: the mud after old step (3) is pumped into spray drying tower and carry out drying-granulating, obtain water contentIt is 0.1 discrete particles;
(5) powder material scattering: use is broken up equipment the discrete particles of step (4) gained is broken up again as after continuous wet-grindingThe powder of particle diameter;
(6) step (5) gained powder being obtained to granularity through nodulizer rolling is the spherical base substrate of 20 object proppant;
(7) the spherical base substrate of proppant step (6) being obtained is dried 30 at 120 temperature, then at cement mechanized shaft kilnOr in rotary kiln, fire and obtain the special fracturing propping agents of the high-intensity shale gas of extremely-low density.
Described step (7) is fired and is obtained the special pressure break support of the high-intensity shale gas of extremely-low density in cement mechanized shaft kilnAgent; In cement mechanized shaft kiln, be warming up to 1200 DEG C with the firing rate of 8 DEG C/min from room temperature and burn till, insulation 2h, itsIn be incubated 1h 800 DEG C time, 1000 DEG C time, be incubated 1h; Lower the temperature with the cooling velocity of 25 DEG C/min again.
Described step (7) is fired and is obtained the special fracturing propping agents of the high-intensity shale gas of extremely-low density in rotary kiln; InstituteThe rotating speed of stating rotary kiln is 2 revs/min, and the highest firing temperature is 1380 DEG C. Sample test by embodiment 1 is obtained: bodyLong-pending density is that 1.33g/cm3, apparent density are 2.26g/cm3; Microsphere particle circularity is greater than 0.95, and sphericity is greater than 0.95; By sampleProduct adopt respectively dry method and bowssening test percentage of damage under 86MPa, 100MPa, the high clossing pressure of 120MPa, test result asAccompanying drawing 1:
By test analysis, the present embodiment sample with the immersion of the aqueous fluid such as fracturing fluid after, after water infiltrates proppant kernel byCause the compressive resistance of proppant and crush resistance significantly to promote in microdilatancy stress, and along with clossing pressure rising percentage of damage increasesAdduction is not obvious, is particularly useful for the exploitation of shale gas pressure break or the ultradeep well natural gas extraction of the high clossing pressure of 100MPa.
Embodiment 2
For exploiting a preparation method for shale gas fracturing propping agents, it is characterized in that:
(1) raw material and weight portion: 30 parts of alumite plumping agents, 30 parts of calcium oxide swelling agents, 85 parts of kaolin, bentonite 10Part, 10 parts, quartz, 5 parts of feldspars, 3 parts of carbonate minerals, 3 parts of ZnOws, 3 parts of tricalcium phosphates;
(2) dry grinding continuously: the raw material that step (1) is prepared packs continuous dry method ball mill ball milling into by automatical feeding system,Cross 200 mesh sieves, obtain expecting powder; Milling parameters is: taking stainless steel ball as abrasive media, and the quality of raw material and stainless steel ballThan being 1:5～3;
(3) continuous wet-grinding: step (2) gained powder is sent into continuous wet-grinding machine by automatical feeding system and carry out continuous wet-grindingReach 20 microns to mud granularity, then send into the old 26h of mud pit; Milling parameters is: taking stainless steel ball as grinding mediumMatter, the mass ratio of raw material, stainless steel ball and water is 3.5:0.5;
(4) mist projection granulating: the mud after old step (3) is pumped into spray drying tower and carry out drying-granulating, obtain water contentIt is 0.5% discrete particles;
(5) powder material scattering: use is broken up equipment the discrete particles of step (4) gained is broken up again as after continuous wet-grindingThe powder of particle diameter;
(6) step (5) gained powder being obtained to granularity through nodulizer rolling is the spherical base substrate of 40 object proppant;
(7) the spherical base substrate of proppant step (6) being obtained is dry 32h at 140 DEG C of temperature, then vertical at cement machineryIn kiln or rotary kiln, fire and obtain the special fracturing propping agents of the high-intensity shale gas of extremely-low density.
Described step (7) is fired and is obtained the special pressure break support of the high-intensity shale gas of extremely-low density in cement mechanized shaft kilnAgent; In cement mechanized shaft kiln, be warming up to 1350 DEG C with the firing rate of 25 DEG C/min from room temperature and burn till, insulation 6h, itsIn be incubated 1h 800 DEG C time, 1000 DEG C time, be incubated 1h; Lower the temperature with the cooling velocity of 45 DEG C/min again.
Described step (7) is fired and is obtained the special fracturing propping agents of the high-intensity shale gas of extremely-low density in rotary kiln;The rotating speed of described rotary kiln is 2-5 rev/min, and the highest firing temperature is 1420 DEG C. Survey by the sample that embodiment 2 is obtainedExamination: bulk density is that 1.41g/cm3, apparent density are 2.32g/cm3; Microsphere particle circularity is greater than 0.95, and sphericity is greater than 0.95; Sample is adopted respectively under 86MPa, 100MPa, the high clossing pressure of 120MPa to dry method and bowssening test percentage of damage, testResult is as accompanying drawing 2:
By test analysis, the present embodiment sample with the immersion of the aqueous fluid such as fracturing fluid after, after water infiltrates proppant kernel byCause the compressive resistance of proppant and crush resistance significantly to promote in microdilatancy stress, and along with clossing pressure rising percentage of damage increasesAdduction is not obvious, is particularly useful for the exploitation of shale gas pressure break or the ultradeep well natural gas extraction of the high clossing pressure of 100MPa.
Above-described detailed description of the invention, has carried out further object of the present invention, technical scheme and beneficial effectDescribe in detail, institute it should be understood that and the foregoing is only the specific embodiment of the present invention, is not intended to limit the present inventionProtection domain, within the spirit and principles in the present invention all, any amendment of making, be equal to replacement, improvement etc., all should compriseWithin protection scope of the present invention.

Claims (3)

1. for exploiting a preparation method for shale gas fracturing propping agents, it is characterized in that:
(1) raw material and weight portion: alumite plumping agent 20-30 part, calcium oxide swelling agent 20-30 part, kaolin 70-85Part, bentonite 5-10 part, quartzy 5-10 part, feldspar 3-5 part, carbonate mineral 2-3 part, ZnOw 1-3Part, tricalcium phosphate 1-3 part;
(2) dry grinding continuously: the raw material that step (1) is prepared packs continuous dry method ball mill ball milling into by automatical feeding system,Cross 200 mesh sieves, obtain expecting powder; Milling parameters is: taking stainless steel ball as abrasive media, and the quality of raw material and stainless steel ballThan being 1:5～3;
(3) continuous wet-grinding: step (2) gained powder is sent into continuous wet-grinding machine by automatical feeding system and carry out continuous wet-grindingReach 5～20 microns to mud granularity, then send into the old 24 ± 2h of mud pit; Milling parameters is: with stainless steel ballFor abrasive media, the mass ratio of raw material, stainless steel ball and water is 1:2.5～3.5:0.5;
(4) mist projection granulating: the mud after old step (3) is pumped into spray drying tower and carry out drying-granulating, obtain water contentIt is 0.1～0.5% discrete particles;
(5) powder material scattering: use is broken up equipment the discrete particles of step (4) gained is broken up again as particle diameter after continuous wet-grindingPowder;
(6) step (5) gained powder being obtained to granularity through nodulizer rolling is the spherical base substrate of 20-40 object proppant;
(7) the spherical base substrate of proppant step (6) being obtained is dry 30 ± 2h at 120～140 DEG C of temperature, then existsIn cement mechanized shaft kiln or rotary kiln, fire and obtain the special fracturing propping agents of the high-intensity shale gas of extremely-low density.
2. according to claim 1 a kind ofly it is characterized in that for exploiting the preparation method of shale gas fracturing propping agents, instituteState step (7) fires and obtains the special fracturing propping agents of the high-intensity shale gas of extremely-low density in cement mechanized shaft kiln; At cementIn mechanical vertical kiln, be warming up to 1200～1350 DEG C with the firing rate of 8～25 DEG C/min from room temperature and burn till, insulation 2～6h, is wherein incubated 1h 800 DEG C time, is incubated 1h 1000 DEG C time; Lower the temperature with the cooling velocity of 25～45 DEG C/min again.
3. according to claim 1 a kind of for exploiting the preparation method of shale gas fracturing propping agents, it is characterized in that:Described step (7) is fired and is obtained the special fracturing propping agents of the high-intensity shale gas of extremely-low density in rotary kiln; Described rotary kilnRotating speed be 2-5 rev/min, the highest firing temperature is 1380-1420 DEG C.
CN201610152275.6A 2016-03-17 2016-03-17 Preparation method of shale gas production fracturing propping agent Pending CN105586027A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610152275.6A CN105586027A (en) 2016-03-17 2016-03-17 Preparation method of shale gas production fracturing propping agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610152275.6A CN105586027A (en) 2016-03-17 2016-03-17 Preparation method of shale gas production fracturing propping agent

Publications (1)

Publication Number Publication Date
CN105586027A true CN105586027A (en) 2016-05-18

Family

ID=55925941

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610152275.6A Pending CN105586027A (en) 2016-03-17 2016-03-17 Preparation method of shale gas production fracturing propping agent

Country Status (1)

Country Link
CN (1) CN105586027A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108120820A (en) * 2017-12-20 2018-06-05 四川圣诺油气工程技术服务有限公司 A kind of method of shale gas pressure break quality control
CN110354970A (en) * 2018-04-10 2019-10-22 中国石油天然气股份有限公司 A kind of processing method of shale gas pressure break river sand proppant
CN114015431A (en) * 2021-12-07 2022-02-08 河南郑矿机器有限公司 Low-density petroleum ceramsite proppant and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103172354A (en) * 2013-04-15 2013-06-26 金刚新材料股份有限公司 Preparation method of fracturing propping agent for exploiting shale gas
CN103773355A (en) * 2014-01-15 2014-05-07 成都新柯力化工科技有限公司 Fracturing propping agent for shale gas mining and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103172354A (en) * 2013-04-15 2013-06-26 金刚新材料股份有限公司 Preparation method of fracturing propping agent for exploiting shale gas
CN103773355A (en) * 2014-01-15 2014-05-07 成都新柯力化工科技有限公司 Fracturing propping agent for shale gas mining and preparation method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108120820A (en) * 2017-12-20 2018-06-05 四川圣诺油气工程技术服务有限公司 A kind of method of shale gas pressure break quality control
CN110354970A (en) * 2018-04-10 2019-10-22 中国石油天然气股份有限公司 A kind of processing method of shale gas pressure break river sand proppant
CN114015431A (en) * 2021-12-07 2022-02-08 河南郑矿机器有限公司 Low-density petroleum ceramsite proppant and preparation method thereof
CN114015431B (en) * 2021-12-07 2023-01-31 河南郑矿机器有限公司 Low-density petroleum ceramsite proppant and preparation method thereof

Similar Documents

Publication Publication Date Title
CN103773355B (en) Fracturing propping agent for shale gas mining and preparation method thereof
CN100368504C (en) Super strength ceramic aggregate proppant and method for preparing same
RU2694363C1 (en) Ceramic proppant and its production method
CN105586027A (en) Preparation method of shale gas production fracturing propping agent
CN104694115A (en) A low-density petroleum fracturing proppant and a preparing method thereof
CA2875500C (en) Proppants and anti-flowback additives comprising flash calcined clay, methods of manufacture, and methods of use
CN103172354B (en) Preparation method of fracturing propping agent for exploiting shale gas
CN101831286A (en) Low-density and high-strength ceramic proppant and production method thereof
CN103820101B (en) A kind of acidproof petroleum fracturing propping agent and manufacture method thereof
CN103396784A (en) Low-density and high-strength petroleum fracturing proppant prepared from red mud and preparation method thereof
CN103468239B (en) The Low-density high-intensity ceramsite proppant and preparation method thereof being raw material with flint clay
CN105295889B (en) A kind of preparation method of low-density and high-strength ceramsite sand proppant
CN103773356B (en) A kind of shale gas exploitation particulate material and preparation method thereof
CN103740356A (en) Petroleum fracturing proppant and preparation method thereof
CN105131934A (en) Double-layer high-strength fracturing propping agent and preparing method thereof
CN102515697A (en) Attapulgite river bottom silt ceramsite sand
WO2015084195A1 (en) A method of manufacturing of light ceramic proppants and light ceramic proppants
CN107337440A (en) A kind of ceramsite sand petroleum fracturing propping agent and preparation method thereof
CN104830308B (en) Shale gas exploitation fracturing propping agents and preparation method thereof
CN102942368A (en) Method for preparing high-strength petroleum fracturing propping agent from low-grade bauxite
CN105567214A (en) Ultralow-density petroleum fracturing propping agent and preparation method thereof
CN102268248B (en) Low-density high-strength andalusite fracturing propping agent and production method thereof
CN106396624A (en) Coal gangue proppant and preparation method thereof
RU2521989C1 (en) High-strength magnesium silicate proppant obtaining method
CN111960807A (en) Preparation method of medium-density ultrahigh-strength ceramsite proppant

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20160518