CN106701056A - Method for preparing low-density fracturing proppant by utilizing sinking beads of hollow glass beads - Google Patents
Method for preparing low-density fracturing proppant by utilizing sinking beads of hollow glass beads Download PDFInfo
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- CN106701056A CN106701056A CN201611234274.2A CN201611234274A CN106701056A CN 106701056 A CN106701056 A CN 106701056A CN 201611234274 A CN201611234274 A CN 201611234274A CN 106701056 A CN106701056 A CN 106701056A
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- heavy pearl
- hollow glass
- glass micropearl
- density
- low
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/64—Oil-based compositions
Abstract
The invention discloses a method for preparing a low-density fracturing proppant by utilizing sinking beads of hollow glass beads. The method comprises the following steps: placing the sinking beads in a high-temperature furnace for heating, then pouring into a mixer for stirring; when the temperature is reduced to a predetermined temperature, adding a film covering agent to the sinking beads sequentially; adding a curing agent so that a covered film on the surfaces of the sinking beads starts to be cured; adding a lubricant to prevent the agglomeration between the beads; and cooling and sieving to obtain the film-covered sinking beads as the proppant. The preparation method provided by the invention adopts the sinking beads which are byproducts of hollow glass bead products, and belongs to the waste utilization, thereby reducing the production cost; the sinking beads have the density of 1.8 g/cm<3> and the compressive strength of 40 MPa, and are beneficial for obtaining the low-density high-strength fracturing proppant; the production method provided by the invention is simple; the energy consumption is low; and the obtained products have low density and low breaking rate.
Description
Technical field
The present invention relates to a kind of petroleum fracturing propping agent and its production method, it is related specifically to a kind of micro- using hollow glass
The byproduct heavy pearl of pearl prepares petroleum fracturing propping agent and its production method.
Background technology
Sometimes for the basic unit for fluid being injected into using artificial method rock in oil exploitation, ruptured with more than bottom
The pressure of intensity, makes the rock stratum around oil well produce crack and forms a passage for high flow conductivity, improves the harvesting of oil gas
Rate.In order to keep crack to be constantly in opening, so that oil gas product can be passed through, must just inject with some strength
Circular granular, this circular particulate matter is exactly proppant.During natural siliceous sand, sintering ceramsite are always oil fracturing technology
Widely used proppant.
However, the density of such proppant is big, sinking speed is fast, is easily deposited near wellbore, involves scope and effectively
Supporting surface is low, and takes that husky fluid viscosity is high to make that equipment and bottom injury are big needed for this kind of proppant, and pressure break cost is increased considerably.
The density of proppant is smaller, and the cost for carrying liquid and pumping equipment is lower.And under equal conditions transport same particle diameter
Proppant, the small deeper inside that can just enter crack of density, it is easy to fill, improve flow conductivity.Therefore proppant is being ensured
Under conditions of high intensity, the density of proppant is reduced as far as possible, be all the time the target that researcher lays siege to.
Foreign countries compare extensive research and apply to low-density propping agent.In United States Patent (USP) USP6,582,819
In mention it is a kind of mixed with inorganic filler using binding agent such as cement, macromolecular material etc., granulate resolidification and form low-density branch
Support agent.One kind is then mentioned in United States Patent (USP) USP6, in 772,838 with shuck as base material, using phenolic aldehyde, epoxy resin or isocyanide
Acid esters etc. is modified to be prepared for low-density propping agent.Chinese patent CN200710188410 discloses a kind of system of low-density propping agent
Preparation Method and preparation technology are then that, used as raw material, crushing utilizes modified after being polished into plant fiber particle using sponge
Agent dipping, solidified plant fibre particle, then use macromolecule resin coated particle again, are molded finally by pulverizing and sieving
Proppant.
But these preparation methods are generally all complicated preparation technologies, and operating expenses is big, so can actually put into production
In case almost do not have.
The content of the invention
For the technological deficiency that prior art is present, present invention aims to provide a kind of derivative of utilization hollow glass micropearl
The method that product heavy pearl prepares low-density propping agent.Low-density high-strength overlay film heavy pearl fracturing propping agents not only density prepared by the method
It is low and with compression strength and acid resistance higher, possess good flow conductivity.
In order to reach above-mentioned purpose, the heavy pearl the invention provides a kind of utilization hollow glass micropearl prepares low-density pressure break
The method of proppant, comprises the following steps：Heavy pearl is put into high temperature furnace and is heated, be subsequently poured into stirring in mixer；Work as temperature
When being reduced to predetermined temperature, successively toward adding filming agent in heavy pearl；Adding curing agent makes the overlay film on heavy pearl surface start solidification；Plus
Conglomeration between entering lubricant and preventing the heavy pearl；Cooling, sieving can obtain overlay film heavy pearl as proppant.
In some embodiments, the heavy pearl is the spin-off of hollow glass micropearl.
In some embodiments, the heavy pearl is the 20/40 mesh heavy pearl filtered out after cleaning, drying.
In some embodiments, 180~250 DEG C are heated in the high temperature furnace.
In some embodiments, after 10~20s of stirring, the curing agent is added.
It is partially cured to resin after 60~120s of stirring in some embodiments, add the lubricant.
In some embodiments, after continuing to stir 60~180s so that overlay film heavy pearl can be flowed freely.
In some embodiments, the filming agent includes coupling agent, resin and toughener.
In some embodiments, the coupling agent is KH550, and the resin is phenolic resin or epoxy resin, the toughness reinforcing
Agent is adjacent benzene-type polyester toughener.
In some embodiments, the lubricant is calcium stearate.
Preparation in accordance with the present invention, the heavy pearl of use is the byproduct of hollow glass micropearl product, belongs to waste profit
With reducing production cost；Heavy pearl density is 1.8g/cm3, compression strength 40MPa is conducive to obtaining the high intensity of low-density
Fracturing propping agents；Production method of the invention is simple, and energy consumption is small, and the product density for obtaining is low, percentage of damage is low.
Brief description of the drawings
The detailed description made to non-limiting example with reference to the following drawings by reading, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 shows low-density prepared by the heavy pearl of the utilization hollow glass micropearl of specific embodiment of the invention
The flow chart of the method for fracturing propping agents.
Specific embodiment
In order to preferably make technical scheme clearly show, the present invention is made into one below in conjunction with the accompanying drawings
Step explanation.
Fig. 1 shows a kind of preparation method of petroleum fracturing propping agent of specific embodiment of the invention.Step S101
In, heavy pearl is put into high temperature furnace and is heated, it is subsequently poured into stirring in mixer.The heavy pearl is the derivative of hollow glass micropearl
Product.The heavy pearl is the 20/40 mesh heavy pearl filtered out after cleaning, drying.180~250 DEG C are heated in the high temperature furnace.
In step S102, when temperature is reduced to predetermined temperature, successively toward adding filming agent in heavy pearl.Predetermined temperature can be
Any suitable temperature, as long as being adapted with the characteristic of the filming agent.The filming agent include coupling agent, resin and
Toughener.The coupling agent is KH550, and the resin is phenolic resin or epoxy resin, and the toughener is adjacent benzene-type polyester
Toughener.
In step S103, curing agent is added the overlay film on heavy pearl surface is started solidification.After 10~20s of stirring, institute is added
State curing agent.In step S104, lubricant is added to prevent the conglomeration between the heavy pearl.After 60~120s of stirring to resin
It is partially cured, add the lubricant.It is partially cured to resin after 60~120s of stirring, add the lubricant.
In some embodiments, the lubricant is after calcium stearate continues to stir 60~180s so that overlay film heavy pearl can be flowed freely.
In step S105, cooling, sieving can obtain overlay film heavy pearl as proppant.The time of above-mentioned stirring can according to actual needs for not
The same time, it is not intended to limit the invention.
The heavy pearl for now describing utilization hollow glass micropearl of the invention in detail prepares the side of low-density fracturing propping agents
The example of method.
Embodiment 1：
Petroleum fracturing propping agent, main body is the heavy pearl of hollow glass micropearl, overlay film reagent：KH550, epoxy resin is supporting
Curing agent, adjacent benzene-type polyester toughener, lubricant stearic acid calcium.
20/40 mesh heavy pearl 10000g will be filtered out after the spin-off heavy pearl cleaning, drying of hollow glass micropearl, by what is obtained
Heavy pearl is heated to 180~250 DEG C in being put into high temperature furnace, stirring in mixer is subsequently poured into, when temperature is reduced to suitable temperature
When, successively toward coupling agent KH550,6g, the epoxy resin 1000g and toughener 60g added in heavy pearl used by overlay film.Stirring 10~
After 20s, curing agent 150g is added the film covered resin on heavy pearl surface is started solidification.Part is solid for resin after 60~120s of stirring
Change, add lubricant stearic acid calcium to prevent conglomeration between heavy pearl 100g.After continuing to stir 60~180s, the flowing of overlay film heavy pearl is certainly
Such as.Cooling, sieving can obtain the epoxy resin overlay film heavy pearl of high intensity.
Embodiment 2：
Petroleum fracturing propping agent, main body is the heavy pearl of hollow glass micropearl, overlay film reagent：KH550, phenolic resin is supporting
Curing agent, adjacent benzene-type polyester toughener, lubricant stearic acid calcium.
20/40 mesh heavy pearl 10000g will be filtered out after the spin-off heavy pearl cleaning, drying of hollow glass micropearl, by what is obtained
Heavy pearl is heated to 180~250 DEG C in being put into high temperature furnace, stirring in mixer is subsequently poured into, when temperature is reduced to suitable temperature
When, successively toward coupling agent KH550,5g, the phenolic resin 1200g and toughener 72g added in heavy pearl used by overlay film.Stirring 10~
After 20s, curing agent 180g is added the film covered resin on heavy pearl surface is started solidification.Part is solid for resin after 60~120s of stirring
Change, add lubricant stearic acid calcium 100g to prevent conglomeration between heavy pearl.After continuing to stir 60~180s, the flowing of overlay film heavy pearl is certainly
Such as.Cooling, sieving can obtain the coating phenolic resin heavy pearl of high intensity.
Embodiment 3：
Petroleum fracturing propping agent, main body is the heavy pearl of hollow glass micropearl, overlay film reagent：KH550, phenolic resin, epoxy
Resin, complete curing agent, adjacent benzene-type polyester toughener, lubricant stearic acid calcium.
20/40 mesh heavy pearl 10000g will be filtered out after the spin-off heavy pearl cleaning, drying of hollow glass micropearl, by what is obtained
Heavy pearl is heated to 180~250 DEG C in being put into high temperature furnace, stirring in mixer is subsequently poured into, when temperature is reduced to suitable temperature
When, successively toward the coupling agent KH550,8g, phenolic resin and each 600g of epoxy resin and toughener added in heavy pearl used by overlay film
72g.After 10~20s of stirring, curing agent 180g is added the film covered resin on heavy pearl surface is started solidification.Set after 60~120s of stirring
Fat is partially cured, adds lubricant stearic acid calcium 100g to prevent conglomeration between heavy pearl.After continuing to stir 60~180s, overlay film
Heavy pearl flows freely.Cooling, sieving can obtain the coating phenolic resin heavy pearl of high intensity.
Proppant performance test table：
According to SY/T5108-2006《Method is recommended in fracturing propping agents performance test》Test result is as follows：
Proppant performance test table：
| Apparent density | Sphericity | Acid solubility (%) | Resistant to breakage rate 69MPa (%) | |
| Embodiment 1 | 1.68 | 0.9 | 0.46 | 4.8 |
| Embodiment 2 | 1.65 | 0.9 | 0.56 | 4.4 |
| Embodiment 3 | 1.67 | 0.9 | 0.52 | 4.6 |
Preparation in accordance with the present invention, the heavy pearl of use is the byproduct of hollow glass micropearl product, belongs to waste profit
With reducing production cost；Heavy pearl density is 1.8g/cm3, compression strength 40MPa is conducive to obtaining the high intensity of low-density
Fracturing propping agents；Production method of the invention is simple, and energy consumption is small, and the product density for obtaining is low, percentage of damage is low.
Specific embodiment of the invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can within the scope of the claims make various deformations or amendments, this not shadow
Sound substance of the invention.
Claims (10)
1. a kind of utilization hollow glass micropearl heavy pearl prepare low-density fracturing propping agents method, it is characterised in that including with
Lower step：
A) heavy pearl is put into high temperature furnace and is heated, be subsequently poured into stirring in mixer；
B) when temperature is reduced to predetermined temperature, successively toward adding filming agent in heavy pearl；
C) adding curing agent makes the overlay film on heavy pearl surface start solidification；
D) adding lubricant prevents the conglomeration between the heavy pearl；
E) cool down, sieving can obtain overlay film heavy pearl as proppant.
2. the method that the heavy pearl of utilization hollow glass micropearl according to claim 1 prepares low-density fracturing propping agents, its
It is characterised by, the heavy pearl is the spin-off of hollow glass micropearl.
3. the method that the heavy pearl of utilization hollow glass micropearl according to claim 2 prepares low-density fracturing propping agents, its
It is characterised by, the heavy pearl is the 20/40 mesh heavy pearl filtered out after cleaning, drying.
4. the method that the heavy pearl of utilization hollow glass micropearl according to claim 1 prepares low-density fracturing propping agents, its
It is characterised by, 180~250 DEG C is heated in the high temperature furnace.
5. the method that the heavy pearl of utilization hollow glass micropearl according to claim 1 prepares low-density fracturing propping agents, its
It is characterised by, after 10~20s of stirring, adds the curing agent.
6. prepare the method for low-density fracturing propping agents it is special for the heavy pearl of utilization hollow glass micropearl according to claim 5
Levy and be, it is partially cured to resin after 60~120s of stirring, add the lubricant.
7. the method that the heavy pearl of utilization hollow glass micropearl according to claim 6 prepares low-density fracturing propping agents, its
It is characterised by, after continuing to stir 60~180s so that overlay film heavy pearl can be flowed freely.
8. the method that the heavy pearl of utilization hollow glass micropearl according to claim 1 prepares low-density fracturing propping agents, its
It is characterised by, the filming agent includes coupling agent, resin and toughener.
9. the method that the heavy pearl of utilization hollow glass micropearl according to claim 8 prepares low-density fracturing propping agents, its
It is characterised by, the coupling agent is KH550, the resin is phenolic resin or epoxy resin, and the toughener is that adjacent benzene-type is gathered
Ester toughener.
10. the method that the heavy pearl of utilization hollow glass micropearl according to claim 1 prepares low-density fracturing propping agents, its
It is characterised by, institute's lubricant is calcium stearate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611234274.2A CN106701056A (en) | 2016-12-28 | 2016-12-28 | Method for preparing low-density fracturing proppant by utilizing sinking beads of hollow glass beads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611234274.2A CN106701056A (en) | 2016-12-28 | 2016-12-28 | Method for preparing low-density fracturing proppant by utilizing sinking beads of hollow glass beads |
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| Publication Number | Publication Date |
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| CN106701056A true CN106701056A (en) | 2017-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611234274.2A Pending CN106701056A (en) | 2016-12-28 | 2016-12-28 | Method for preparing low-density fracturing proppant by utilizing sinking beads of hollow glass beads |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101563436A (en) * | 2006-12-19 | 2009-10-21 | 陶氏环球技术公司 | A new coating composition for proppant and the method of making the same |
| CN101586024A (en) * | 2008-05-21 | 2009-11-25 | 北京仁创科技集团有限公司 | Kind of laminated granule for oil extraction, proppant and oil extraction method using the proppant |
| CN102127417A (en) * | 2010-01-15 | 2011-07-20 | 北京仁创科技集团有限公司 | Propping agent particles and preparation method thereof |
| US20120183687A1 (en) * | 2003-10-22 | 2012-07-19 | Halliburto Energy Services, Inc. | Methods for Reducing Particulate Density |
| CN104946233A (en) * | 2014-03-28 | 2015-09-30 | 北京仁创科技集团有限公司 | Self-suspension supporting agent for natural water fracturing |
| EP2989177A2 (en) * | 2013-04-26 | 2016-03-02 | Carbo Ceramics Inc. | Compositions and methods for use of proppant surface chemistry to improve proppant consolidation and flowback control |
| CN105623638A (en) * | 2014-10-31 | 2016-06-01 | 中国石油天然气股份有限公司 | Resin coated hollow glass beads and preparation method therefor |
| CN105985766A (en) * | 2015-02-04 | 2016-10-05 | 北京仁创科技集团有限公司 | Proppant and preparation method thereof |
-
2016
- 2016-12-28 CN CN201611234274.2A patent/CN106701056A/en active Pending
Patent Citations (8)
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|---|---|---|---|---|
| US20120183687A1 (en) * | 2003-10-22 | 2012-07-19 | Halliburto Energy Services, Inc. | Methods for Reducing Particulate Density |
| CN101563436A (en) * | 2006-12-19 | 2009-10-21 | 陶氏环球技术公司 | A new coating composition for proppant and the method of making the same |
| CN101586024A (en) * | 2008-05-21 | 2009-11-25 | 北京仁创科技集团有限公司 | Kind of laminated granule for oil extraction, proppant and oil extraction method using the proppant |
| CN102127417A (en) * | 2010-01-15 | 2011-07-20 | 北京仁创科技集团有限公司 | Propping agent particles and preparation method thereof |
| EP2989177A2 (en) * | 2013-04-26 | 2016-03-02 | Carbo Ceramics Inc. | Compositions and methods for use of proppant surface chemistry to improve proppant consolidation and flowback control |
| CN104946233A (en) * | 2014-03-28 | 2015-09-30 | 北京仁创科技集团有限公司 | Self-suspension supporting agent for natural water fracturing |
| CN105623638A (en) * | 2014-10-31 | 2016-06-01 | 中国石油天然气股份有限公司 | Resin coated hollow glass beads and preparation method therefor |
| CN105985766A (en) * | 2015-02-04 | 2016-10-05 | 北京仁创科技集团有限公司 | Proppant and preparation method thereof |
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| Title |
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