CN102002356B - Petroleum propping agent with ultra-low density and high strength - Google Patents
Petroleum propping agent with ultra-low density and high strength Download PDFInfo
- Publication number
- CN102002356B CN102002356B CN 201010231140 CN201010231140A CN102002356B CN 102002356 B CN102002356 B CN 102002356B CN 201010231140 CN201010231140 CN 201010231140 CN 201010231140 A CN201010231140 A CN 201010231140A CN 102002356 B CN102002356 B CN 102002356B
- Authority
- CN
- China
- Prior art keywords
- propping agent
- petroleum
- ultra
- high strength
- fractures
- 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.)
- Expired - Fee Related
Links
Landscapes
- Compositions Of Oxide Ceramics (AREA)
- Cosmetics (AREA)
Abstract
The invention discloses a petroleum propping agent with ultra-low density and high strength. The petroleum propping agent is prepared by uniformly mixing 30 to 50 weight percent of white mud, 30 to 50 weight percent of kaolin and 10 to 20 weight percent of feldspar serving as raw materials, adding a reinforcing agent such as aluminum sol, silicon sol or aluminum phosphate sol and the like in an amount which is 2 to 5 percent of the total weight of the three raw materials and performing wet ball milling, superfine grinding, spray drying, rolling forming, drying, screening and high-temperature sintering. The petroleum propping agent with ultra-low density and high strength has the characteristics of ultra-low apparent density, high strength and low crushing rate, so the propping agent has good flow conductivity, can quickly fill fractures in hydraulic fracturing, effectively props the fractures all the time after the hydraulic fracturing is finished, prevents reclosing of the fractures, enables the stratum fluid to enter the fractures in a linear mode, improves the hydraulic fracturing effect, and is favorable for petroleum yield increment. Meanwhile, the local resources can be fully utilized as raw materials for preparation so as to reduce the manufacturing cost of the propping agent.
Description
Technical field
The present invention relates to the petroleum killing fracturing propping agents, especially relate to a kind of ultralow density high-strength degree petroleum propping agent that the oilfield exploitation volume increase is increased substantially.
Background technology
As everyone knows, hydraulic fracturing technology is the technical measures of oil output, and waterfrac treatment is effective, and the oil output amount just improves, and affects the many factors of waterfrac treatment effect.Petroleum propping agent and fracturing liquid are indispensable engineering materialss in the exploitation of oil-gas field waterfrac treatment construction, and the type of concurrent fracturing liquid and the selection of propping agent also are the principal elements that affects fracturing effect.And being propping agents, the volume density of propping agent, intensity and percentage of damage affect the main performance index of fracturing effect.The kind of propping agent is also many at present, quartz sand, haydite, glass sphere and resin bag etc. are arranged, because ceramsite propping agent relatively other propping agent has the better characteristics of integrated performance index, ceramsite propping agent is mostly adopted in therefore existing deep low-permeability hydrocarbon-bearing pool layer exploitation.Ceramsite propping agent mainly is that employing aluminium vanadine is that main raw material is prepared with electrolysis or sintering method at present, but the ceramsite propping agent volume density is more than 2.7mg/cm3, the intensity that has (resistance to compression) under 52MPa hydraulic pressure pressure its percentage of damage greater than 10%, fracturing propping agents be can not satisfy fully and Fast Filling fracturing fracture and the firmly technical requirements of supporting crack seam face needed, cause earth formation deep oil reservoir part fracturing fracture sometimes to occur again closed under the action of gravity of top rock, thereby reduce the waterfrac treatment effect, be unfavorable for oil output.
Summary of the invention
Problem for fracturing propping agents existence in the above-mentioned prior art, the present invention proposes that a kind of not only volume density is low and ultimate compression strength is high, percentage of damage is little, energy Fast Filling pressure-break and support fracturing stitch face, are conducive to the ultralow density high-strength degree petroleum propping agent of oil output.
The technical solution used in the present invention is: it is after raw material mixes that described ultralow density high-strength degree petroleum propping agent adopts the white clay of 30-50%wt, the kaolin of 30-50%wt and the feldspar of 10-20%wt, the toughener that adds again above-mentioned three kinds of raw material gross weight 2-5% forms through wet ball grinding, extra-fine grinding, spraying drying, rolling moulding, oven dry, screening and high-temperature firing.
The white clay that Pingxiang City Nan Keng town, the preferred Jiangxi Province of described white clay produces, the kaolin that the preferred Jiangxi Province of described kaolin Yichun City is produced, the feldspar that Gaoan City, the preferred Jiangxi Province of described feldspar produces, described toughener is aluminium colloidal sol, silicon sol or phosphaljel.
The present invention adopts the made propping agent property indices of technique scheme to be:
Percentage of damage (under the 52MPa water pressure) :≤8%
Volume density: 2.0-2.5mg/cm3
The present invention forms mechanism: after described raw material mixes the adding toughener, through wet ball grinding and extra-fine grinding art breading, its compound becomes and is ultra-fine grain shape (fineness is 0.5-1 μ m), thereby greatly improve the specific surface area of particle, toughener can evenly compactly be covered on the ultra-fine grain surface, can make the tiny reticulated bone support body of the inner formation of propping agent behind the high-temperature firing, reduced the space between the propping agent internal particle, make between the particle connect tightr and firm, thereby greatly reduce the volume density of propping agent, improve propping agent ultimate compression strength, reduced the percentage of damage of propping agent.
The ultralow density high-strength degree of the present invention petroleum propping agent is owing to having ultralow volume density, the characteristics of high strength and low percentage of damage, therefore the propping agent of making has good flow conductivity, in waterfrac treatment, can fill rapidly fracturing fracture, and after waterfrac treatment finishes, the crack is effectively supported, prevent that fracturing fracture is again closed, makes resident fluid enter the crack with linear mode, improve the waterfrac treatment effect, be conducive to oil output.It is that raw material is prepared that simultaneously the present invention also can take full advantage of local resource, thereby can reduce the propping agent manufacturing cost.
Embodiment
Embodiment 1; be after raw material evenly mixes with the kaolin of the white clay of 35%wt, 50%wt and the feldspar of 15%wt; the silicon sol that adds again above-mentioned three kinds of raw material gross weights 4%; particle fineness reaches 0.5-1 μ m after wet ball grinding 40 hours, extra-fine grinding; carry out spraying drying again, then roll in warding off a machine and carry out the 20-40 mesh sieve after moulding, the drying and shaping again and divide, the proppant particles that will obtain after will sieving again is incubated 2-4 hour under 1100-1300 ℃ of high temperature fires and forms.
The petroleum propping agent that the present embodiment 1 makes is through sampling Detection, and performance index are:
Volume density: 2.45mg/cm3
Percentage of damage (under the 52MPa water pressure): 7.1%
Embodiment 2; adopting the white clay of 50%wt, the kaolin of 38%wt and the feldspar of 12%wt is after raw material evenly mixes; the phosphaljel that adds again above-mentioned three kinds of raw material gross weights 2%; particle fineness reaches 0.5-1 μ m after wet ball grinding 40 hours, extra-fine grinding; carry out spraying drying again, then roll in warding off a machine and carry out the 40-70 mesh sieve after moulding, the drying and shaping again and divide, the proppant particles that will obtain after will sieving again is incubated 2-4 hour under 1100-1300 ℃ of high temperature fires and forms.The petroleum propping agent that the present embodiment 2 makes is through sampling Detection, and performance index are:
Volume density: 2.33mg/cm3
Percentage of damage (under the 52MPa water pressure): 6.2%
Embodiment 3; be after raw material evenly mixes with Yichuan kaolin of hole, the south of 40%wt white clay, 40%wt and the high peace feldspar of 20%wt; the aluminium colloidal sol that adds again above-mentioned three kinds of raw material gross weights 3%; through wet ball grinding 40 hours; particle fineness reaches 0.5-1 μ m after the extra-fine grinding; carry out spraying drying again, then roll in warding off a machine and carry out the 30-50 mesh sieve after moulding, the drying and shaping again and divide, the proppant particles that will obtain after will sieving again is incubated 2-4 hour under 1100-1300 ℃ of high temperature fires and forms.The petroleum propping agent that the present embodiment 3 makes is through sampling Detection, and performance index are:
Volume density: 2.05mg/cm3
Percentage of damage (under the 52MPa water pressure): 5.6%
Embodiment 4; be after raw material evenly mixes with Yichuan kaolin of hole, the south of 30%wt white clay, 50%wt and the high peace feldspar of 20%wt; the aluminium colloidal sol that adds again above-mentioned three kinds of raw material gross weights 3%; through wet ball grinding 40 hours; particle fineness reaches 0.5-1 μ m after the extra-fine grinding; carry out spraying drying again, then roll in warding off a machine and carry out the 20-40 mesh sieve after moulding, the drying and shaping again and divide, the proppant particles that will obtain after will sieving again is incubated 2-4 hour under 1100-1300 ℃ of high temperature fires and forms.The petroleum propping agent that the present embodiment 4 makes is through sampling Detection, and performance index are:
Volume density: 2.39mg/cm3
Percentage of damage (under the 52MPa water pressure): 6.5%
Embodiment 5; be after raw material evenly mixes with Yichuan kaolin of hole, the south of 50%wt white clay, 35%wt and the high peace feldspar of 15%wt; the aluminium colloidal sol that adds again above-mentioned three kinds of raw material gross weights 4%; through wet ball grinding 40 hours; particle fineness reaches 0.5-1 μ m after the extra-fine grinding; carry out spraying drying again, then roll in warding off a machine and carry out the 40-70 mesh sieve after moulding, the drying and shaping again and divide, the proppant particles that will obtain after will sieving again is incubated 2-4 hour under 1100-1300 ℃ of high temperature fires and forms.The petroleum propping agent that the present embodiment 5 makes is through sampling Detection, and performance index are:
Volume density: 2.23mg/cm3
Percentage of damage (under the 52MPa water pressure): 6.05%.
Claims (2)
1. ultralow density high-strength degree petroleum propping agent, it is characterized in that: it adopts the white clay of 30-50%wt, the kaolin of 30-50%wt and the feldspar of 10-20%wt is after raw material evenly mixes, the toughener that adds again above-mentioned three kinds of raw material gross weight 2-5%, form through wet ball grinding, extra-fine grinding, spraying drying, rolling moulding, oven dry, screening and 1100-1300 ℃ of high-temperature firing, the volume density of described ultralow density high-strength degree petroleum propping agent is 2.0-2.5mg/cm
3, the percentage of damage of described ultralow density high-strength degree petroleum propping agent≤8% under 52MPa hydraulic pressure.
2. ultralow density high-strength degree petroleum propping agent according to claim 1, it is characterized in that: described toughener is aluminium colloidal sol, silicon sol or phosphaljel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010231140 CN102002356B (en) | 2010-05-11 | 2010-07-08 | Petroleum propping agent with ultra-low density and high strength |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010167539.8 | 2010-05-11 | ||
| CN201010167539 | 2010-05-11 | ||
| CN 201010231140 CN102002356B (en) | 2010-05-11 | 2010-07-08 | Petroleum propping agent with ultra-low density and high strength |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102002356A CN102002356A (en) | 2011-04-06 |
| CN102002356B true CN102002356B (en) | 2013-01-02 |
Family
ID=43810058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010231140 Expired - Fee Related CN102002356B (en) | 2010-05-11 | 2010-07-08 | Petroleum propping agent with ultra-low density and high strength |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102002356B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6324888B2 (en) * | 2011-06-29 | 2018-05-16 | グランド・アビス・エルエルシー | Method and system for deep isolation of nuclear and other hazardous waste |
| CN103820101B (en) * | 2014-01-21 | 2017-01-04 | 佛山市东鹏陶瓷有限公司 | A kind of acidproof petroleum fracturing propping agent and manufacture method thereof |
| CN104177538B (en) | 2014-08-13 | 2016-06-22 | 中国地质大学（武汉） | A kind of preparation method of Oil/gas Well extremely-low density fracturing propping agents |
| CN104629683B (en) * | 2015-01-13 | 2017-01-11 | 江苏金石研磨有限公司 | Preparation method of high-strength parent nucleus for centrifugal shaping of ceramic grinding ball |
| US10115489B2 (en) | 2016-09-12 | 2018-10-30 | Grand Abyss, Llc | Emergency method and system for in-situ disposal and containment of nuclear material at nuclear power facility |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101023243A (en) * | 2004-09-14 | 2007-08-22 | 卡博陶粒有限公司 | Sintered spherical pellets |
| WO2008094069A2 (en) * | 2006-12-27 | 2008-08-07 | Schlumberger Canada Limited | Proppant, proppant production method and use of proppant |
-
2010
- 2010-07-08 CN CN 201010231140 patent/CN102002356B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101023243A (en) * | 2004-09-14 | 2007-08-22 | 卡博陶粒有限公司 | Sintered spherical pellets |
| WO2008094069A2 (en) * | 2006-12-27 | 2008-08-07 | Schlumberger Canada Limited | Proppant, proppant production method and use of proppant |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102002356A (en) | 2011-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103224772B (en) | Well cementation cement slurry, preparation method and application thereof | |
| CN103421485B (en) | A kind of coal bed fracturing Lightweight ceramsite proppant and preparation method thereof | |
| US6780804B2 (en) | Extended particle size distribution ceramic fracturing proppant | |
| CN102002356B (en) | Petroleum propping agent with ultra-low density and high strength | |
| US20140110110A1 (en) | Porous Proppants | |
| AU2014342806C1 (en) | Proppants with improved strength | |
| CN101787270B (en) | Low-density ceramic proppant and preparation method thereof | |
| CN103013486B (en) | Fracturing fluid and fracturing method for improving laying efficiency of proppant in fractured fracture | |
| AU2012325773A1 (en) | Porous proppants | |
| CN103773355B (en) | Fracturing propping agent for shale gas mining and preparation method thereof | |
| CN102181274B (en) | Thixotropic chemical channeling sealing agent | |
| CN105131934A (en) | Double-layer high-strength fracturing propping agent and preparing method thereof | |
| CN102703044A (en) | Novel cement slurry plugging fluid | |
| Liao et al. | Lightweight proppants in unconventional oil and natural gas development: A review | |
| CN109777395A (en) | A kind of preparation method of petroleum propping agent | |
| CN104479667A (en) | Low-density and moderate-strength oil fracturing propping agent and preparing method thereof | |
| CN108102638A (en) | A kind of ceramsite sand petroleum propping agent | |
| CN105801161A (en) | Preparation method of ion type rare earth tailing porous ceramsite | |
| CN109880611A (en) | A kind of petroleum propping agent | |
| CN108315006B (en) | Bionic intelligent three-dimensional proppant and application thereof | |
| CN107903883B (en) | Ultra-low density cement slurry suspension stabilizer suitable for low-temperature to high-temperature conditions | |
| CN106186769A (en) | Preparation method and application are dried in a kind of alkaline residue water-retaining agent and revolution thereof | |
| CN102865061A (en) | Honeycomb type paving method of propping agent and application thereof | |
| CN105801162A (en) | Preparation method of pyrite tailing ceramsite proppant | |
| CN104910891A (en) | Low-density ceramic fracturing propping agent and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20130708 |