CN101824315A - Super-low-density proppant and preparation method thereof - Google Patents
Super-low-density proppant and preparation method thereof Download PDFInfo
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- CN101824315A CN101824315A CN201010168613A CN201010168613A CN101824315A CN 101824315 A CN101824315 A CN 101824315A CN 201010168613 A CN201010168613 A CN 201010168613A CN 201010168613 A CN201010168613 A CN 201010168613A CN 101824315 A CN101824315 A CN 101824315A
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Abstract
The invention discloses a super-low-density proppant. The proppant is characterized by mainly being prepared from the following raw materials in part by mass: 20 to 25 parts of calcined bauxite, 30 to 35 parts of raw bauxite and 45 to 50 parts of clay. The invention also discloses a method for preparing the super-low-density proppant. The proppant of the invention has low specific weight of only 1.35 to 1.45, apparent specific gravity of 2.5 to 2.65, low density and good suspension property, is not easy to precipitate and is easy to carry into a well.
Description
Technical field
The present invention relates to a kind of deep-seated oil, gas well fracturing technology super-low-density proppant, the invention still further relates to the preparation method of this super-low-density proppant.
Background technology
In order to develop deep-seated oil, gas well, improve output, fracturing technology is widely used.In order to ensure effectively strutting of underground deep layer pressure-break, the proper supporting agent is necessary, and it can increase the flow conductivity on stratum, improves the output of oil or gas, is the important factor that fracturing technology is used quality.
Ideal well fracturing propping agent requires to have high carrying capacity and high sand ratio, therefore needs alap density and high as far as possible intensity.Existing propping agent is mainly high-density, middle density and three kinds of propping agents of low density, and in order to satisfy the requirement of intensity, the density of existing propping agent is bigger, and its suspension is poor, and precipitation is not easy to be carried in the well easily, and cost of winning is big.
Summary of the invention
Goal of the invention: the objective of the invention is at the deficiencies in the prior art, provide a kind of suspension good, be difficult for sedimentary intensity height, super-low-density proppant.
Another object of the present invention is to provide the preparation method of this super-low-density proppant.
Technical scheme: for achieving the above object, super-low-density proppant of the present invention is mainly made by following raw material: 20～25 parts of calcined bauxites, and 30～35 parts of raw bauxites, 45～50 parts of clays are in mass parts.
In order to reduce sintering temperature, (formal name used at school: the magnesium silicate minerals) 1～3 part and/or titanium dioxide are 1～3 part, in mass parts also to comprise talcum in the described raw material.
In order to guarantee the quality of propping agent, Al in the described calcined bauxite
2O
3Content be 90～98% (wt); Al in the described raw bauxite
2O
3Content be 70～78% (wt); Al in the described clay
2O
3Content be 20～30% (wt).
The preparation method of above-mentioned super-low-density proppant is: by usual method, raw material pulverizing, batch mixing, balling-up, sintering are made.
Beneficial effect: the present invention compared with prior art, its beneficial effect is: 1, product light specific gravity of the present invention, proportion only is 1.35～1.45, bulk specific gravity is 2.5～2.65, density is low, suspension is good, is difficult for precipitation, is carried in the well easily; 2, the intensity height of product of the present invention, under the pressure condition of 52MPa, colony's percentage of damage is 3～4% only, is not easy fragmentation, is not easy stifled well, satisfies requirement of engineering; 3, product cut size of the present invention is little, and granularity is 40～70 orders; Product of the present invention has lower density under the condition of higher-strength, solved the contradiction of intensity and density preferably, not only help in the pressing crack construction fracturing liquid and carry and being pressed in the cracking seam, and the crevice volume consumption is few, can reduce use cost; 4, product of the present invention can adopt traditional method to prepare, and the preparation method is simple, does not need to update the equipment.
Embodiment
Below most preferred embodiment is elaborated, but protection scope of the present invention is not limited to described embodiment.
Embodiment 1: a kind of super-low-density proppant, and raw material is: 23 parts of calcined bauxites, 32 parts of raw bauxites, 48 parts of clays, 2 parts in talcum, 2 parts of titanium dioxide by usual method, make raw material pulverizing, batch mixing, balling-up, sintering.
Wherein, Al in the described calcined bauxite
2O
3Content be 94% (wt), Al in the described raw bauxite
2O
3Content be 75% (wt), Al in the described clay
2O
3Content be 25% (wt).
Embodiment 2～5: a kind of super-low-density proppant, its preparation method are with embodiment 1, and its raw material and content see Table 1, all in mass parts.
| Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| Calcined bauxite | ??20 | ??25 | ??21 | ??24 |
| Al in the calcined bauxite 2O 3 | ??90％(WT) | ??92％(WT) | ??98％(WT) | ??96％(WT) |
| Raw bauxite | ??30 | ??32 | ??34 | ??35 |
| Al in the raw bauxite 2O 3 | ??70％(WT) | ??78％(WT) | ??74％(WT) | ??76％(WT) |
| Clay | ??46 | ??45 | ??47 | ??50 |
| Al in the clay 2O 3 | ??20％(WT) | ??22％(WT) | ??28％(WT) | ??30％(WT) |
| Talcum | ??1 | ??1.5 | ??0 | ??3 |
| Titanium dioxide | ??0 | ??1.5 | ??1 | ??3 |
The personage who knows this area will understand, though described specific embodiment for the ease of explaining here, can make various changes under the situation that does not deviate from spirit and scope of the invention.Therefore, except claims, can not be used to limit the present invention.
Claims (6)
1. super-low-density proppant is characterized in that mainly being made by following raw material: 20～25 parts of calcined bauxites, and 30～35 parts of raw bauxites, 45～50 parts of clays are in mass parts.
2. super-low-density proppant according to claim 1 is characterized in that raw material also comprises: 1～3 part of 1～3 part in talcum and/or titanium dioxide, and in mass parts.
3. super-low-density proppant according to claim 1 and 2 is characterized in that: Al in the described calcined bauxite
2O
3Content be 90～98% (wt).
4. super-low-density proppant according to claim 1 and 2 is characterized in that: Al in the described raw bauxite
2O
3Content be 70～78% (wt).
5. super-low-density proppant according to claim 1 and 2 is characterized in that: Al in the described clay
2O
3Content be 20～30% (wt).
6. according to the preparation method of the described super-low-density proppant of arbitrary claim in the claim 1～5, it is characterized in that: raw material pulverizing, batch mixing, balling-up, sintering are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010168613.8A CN101824315B (en) | 2010-05-11 | 2010-05-11 | Super-low-density proppant and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010168613.8A CN101824315B (en) | 2010-05-11 | 2010-05-11 | Super-low-density proppant and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101824315A true CN101824315A (en) | 2010-09-08 |
| CN101824315B CN101824315B (en) | 2015-01-07 |
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ID=42688484
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010168613.8A Expired - Fee Related CN101824315B (en) | 2010-05-11 | 2010-05-11 | Super-low-density proppant and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104479666A (en) * | 2014-12-11 | 2015-04-01 | 淄博嘉丰矿业有限公司 | Ultralow-density ceramsite proppant prepared from silica and preparation method of ceramsite proppant |
| CN107033870A (en) * | 2017-04-21 | 2017-08-11 | 常州市奥普泰科光电有限公司 | A kind of preparation method of low-density and high-strength petroleum fracturing propping agent |
| CN109534793A (en) * | 2018-12-29 | 2019-03-29 | 陕西科技大学 | Low-density petroleum fracturing propping agent of the crystal containing sapphirine and preparation method thereof |
| CN109958424A (en) * | 2017-12-22 | 2019-07-02 | 中国石油化工股份有限公司 | A method of realizing that hydraulic fracture end effectively blocks |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1367306A (en) * | 2002-03-10 | 2002-09-04 | 宜兴东方石油支撑剂有限公司 | Solid propping agent and its preparation method |
| CN101701149A (en) * | 2009-11-20 | 2010-05-05 | 中陶支撑剂(贵州)有限公司 | Low-density ceramsite propping agent |
-
2010
- 2010-05-11 CN CN201010168613.8A patent/CN101824315B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1367306A (en) * | 2002-03-10 | 2002-09-04 | 宜兴东方石油支撑剂有限公司 | Solid propping agent and its preparation method |
| CN101701149A (en) * | 2009-11-20 | 2010-05-05 | 中陶支撑剂(贵州)有限公司 | Low-density ceramsite propping agent |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104479666A (en) * | 2014-12-11 | 2015-04-01 | 淄博嘉丰矿业有限公司 | Ultralow-density ceramsite proppant prepared from silica and preparation method of ceramsite proppant |
| CN104479666B (en) * | 2014-12-11 | 2017-03-01 | 淄博嘉丰矿业有限公司 | Ultralow close ceramsite propping agent with Silicon stone as raw material and preparation method thereof |
| CN107033870A (en) * | 2017-04-21 | 2017-08-11 | 常州市奥普泰科光电有限公司 | A kind of preparation method of low-density and high-strength petroleum fracturing propping agent |
| CN109958424A (en) * | 2017-12-22 | 2019-07-02 | 中国石油化工股份有限公司 | A method of realizing that hydraulic fracture end effectively blocks |
| CN109534793A (en) * | 2018-12-29 | 2019-03-29 | 陕西科技大学 | Low-density petroleum fracturing propping agent of the crystal containing sapphirine and preparation method thereof |
| CN109534793B (en) * | 2018-12-29 | 2021-07-13 | 陕西科技大学 | Low-density petroleum fracturing propping agent containing sapphirine crystals and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101824315B (en) | 2015-01-07 |
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