CN103623732A - Coaxial bidirectional stirring device used in continuous offshore fracturing fluid blending device - Google Patents
Coaxial bidirectional stirring device used in continuous offshore fracturing fluid blending device Download PDFInfo
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- CN103623732A CN103623732A CN201310565941.5A CN201310565941A CN103623732A CN 103623732 A CN103623732 A CN 103623732A CN 201310565941 A CN201310565941 A CN 201310565941A CN 103623732 A CN103623732 A CN 103623732A
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Abstract
The invention relates to a coaxial bidirectional stirring device used in a continuous offshore fracturing fluid blending device. The coaxial bidirectional stirring device is characterized by comprising a stirring tank and a plurality of stirrers, wherein the stirrers are uniformly and fixedly arranged at intervals around the central shaft of the stirring tank; each stirrer comprises an upper motor, a lower motor, an upper transmission shaft, a lower transmission shaft, an upper stirring blade, a lower stirring blade and a coupler; the upper motors and the lower motors are respectively and fixedly arranged on an upper cover plate and a lower cover plate of the stirring tank; the upper ends of the upper transmission shafts and the lower ends of the lower transmission shafts are respectively and fixedly connected with the power output ends of the upper motors and the lower motors; the lower ends of the upper transmission shafts and the upper ends of the lower transmission shafts are connected through the couplers; the upper stirring blades and the lower stirring blades are respectively fixed on the upper transmission shafts and the lower transmission shafts. When a fracturing fluid is blended, the upper transmission shafts and the lower transmission shafts respectively drive the upper stirring blades and the lower stirring blades to make bidirectional rotation along the axes of the couplers under the driving of the upper motors and the lower motors, so as to share and blend the fracturing fluid. The coaxial bidirectional stirring device can be applied to the stirring process of liquids such as the fractural fluid.
Description
Technical field
The present invention relates to a kind of agitating device, particularly about a kind of coaxial two-direction agitating device for marine fracturing fluid continuous mixing device.
Background technology
The exploitation in low-permeability oil gas field mainly adopts hydraulic fracturing technology transformation oil reservoir, and the technology that fracturing work is carried out in oil field, land is at present comparative maturity.The key of the success or not of fracturing work depends on the quality of fracturing fluid quality to a great extent, and the main method that improves fracturing fluid quality is to improve thickening agent performance and the raising technique that is mixed.Recent year drops into great effort research thickening agent to improve the performance of thickening agent, and after 2003, land is used blending device performance to be also greatly improved, and continuous mixing device and arrangement and method for construction are mature on the whole, and each elephant is progressively applied at home.But for the exploitation in marine low-permeability oil gas field, owing to being subject to the factor impacts such as the restriction of operation on the sea construction site, marine high investment excessive risk and marine environmental protection, the Fracturing Technology in oil field, land comparative maturity is difficult to be directly used in sea.Particularly be applicable to the marine blending device using and also need further research.
Past fracturing work to be adopted and take the oil base fracturing fluid that diesel oil is base fluid, its pollution post-processed difficulty that pump ground return face causes after completing pressure break back-up sand task is large, if large-scale promotion application fracturing technique at sea, must consider aqueous fracturing fluid, and high-quality is mixed continuously, aqueous fracturing fluid is still global problem, subject matter is that hydration rate is slow, the thickening agent that your powder of guanidine of take is master is difficult for and water affinity, in the process that is mixed, also can form large water gaging bag powder (being commonly called as flake), can not after secondary cycle, mix again, and natural swelling time long (more than 120 minutes), these all can not meet marine fracturing work requirement.For making up the problem of hydration rate deficiency, improve liquid dispensing device performance and improve thickening agent performance just most important.At present, offshore oilfield is with the mode of the being mixed fracturing fluid that is mixed in advance in batches while carrying out fracturing work, but this mode cannot realize and being mixed continuously to of the fracturing fluid.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of simple in structure, sufficient coaxial two-direction agitating device for marine fracturing fluid continuous mixing device of stirring.
For achieving the above object, the present invention takes following technical scheme: a kind of coaxial two-direction agitating device for marine fracturing fluid continuous mixing device, it is characterized in that: it comprises an agitator tank and some agitators, some described agitators be take the central shaft of described agitator tank and are evenly fixedly installed in described agitator tank as interval, axle center; Described in each, agitator comprises that motor on, uploads paddle on moving axis,, a shaft coupling, once paddle, a lower drive shaft and motor once; Described upper motor and lower motor are fixedly installed on respectively on the upper cover plate and lower cover of described agitator tank, describedly upload the clutch end that the upper end of moving axis and the lower end of lower drive shaft are connected to described upper motor and lower motor, describedly upload the lower end of moving axis and the upper end of lower drive shaft is connected by described shaft coupling, described in described upper paddle and lower paddle are separately fixed at, upload on moving axis and lower drive shaft.
Described agitator tank is arranged to cylindrical, and it comprises a tank body, a upper cover plate and a lower cover; Described upper cover plate is arranged on the upper end of described tank body, and described lower cover is arranged on the lower end of described tank body; On described upper cover plate, offer fracturing fluid entrance, on described lower cover, offer fracturing fluid outlet.
On described motor with described in upload the upper end link position of moving axis and the lower end link position of described lower motor and described lower drive shaft is provided with a protective cover.
The blade quantity of described upper paddle and described lower paddle is set to more than two; In the blade of described upper paddle, have one and be horizontally disposed with blade, rest blade is from the horizontal by acute angle and oblique lower setting; In the blade of described lower paddle, have one with blade from the horizontal by acute angle and arrange obliquely, rest blade is from the horizontal by acute angle and oblique lower setting.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, the present invention is owing to comprising an agitator tank and some agitators, some agitators be take the central shaft of agitator tank and are evenly fixedly installed in agitator tank as interval, axle center, therefore the present invention is simple in structure, easy for installation, can meet marine fracturing work and space site requirements.2, the present invention is owing to being provided with some agitators in agitator tank, each agitator comprises that motor on, uploads paddle on moving axis,, a shaft coupling, once paddle, a lower drive shaft and motor once, upload moving axis and lower drive shaft drives respectively paddle and lower paddle to do Double-directional rotary along the axle center of shaft coupling under the drive of upper motor and lower motor, fracturing fluid is sheared, stirred, therefore the present invention can fully stir fracturing fluid, thereby shortens mixing time.Based on above advantage, the present invention can be applied in the whipping process of the liquid such as fracturing fluid.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention
Fig. 2 is the top view of Fig. 1
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Fig. 1～Fig. 2, the present invention includes an agitator tank 1 and some agitators 2, some agitators 2 be take the central shaft of agitator tank 1 and are evenly arranged in agitator tank 1 as interval, axle center.
Each agitator 2 comprises on one that motor 21, uploads paddle 23 on moving axis 22,, a shaft coupling 24, once paddle 25, a lower drive shaft 26 and motor 27 once.Upper motor 21 and lower motor 25 are fixedly installed on respectively on upper cover plate 12 and lower cover 13, upload the clutch end that the upper end of moving axis 22 and the lower end of lower drive shaft 26 are connected to motor 21 and lower motor 27, upload the lower end of moving axis 22 and the upper end of lower drive shaft 26 is connected by shaft coupling 24, so that upload moving axis 22 and lower drive shaft 26, can under the drive of upper motor 21 and lower motor 25, realize respectively coaxial two-direction and rotate, upper paddle 23 and lower paddle 25 are separately fixed to be uploaded on moving axis 22 and lower drive shaft 26.
In above-described embodiment; at upper motor 21 and upper end link position and the lower motor 27 of uploading moving axis 22, be provided with a protective cover 28 with the lower end link position of lower drive shaft 26; for the protection of upper motor 21 and lower motor 27, prevented that fracturing fluid from entering in motor 21 and lower motor 27 in whipping process.
In above-described embodiment, agitator tank 1 is arranged to cylindrical.
In above-described embodiment, the needs in flow field in agitator tank 1 during according to actual job, the blade quantity of upper paddle 23 and lower paddle 25 is set to more than two, wherein, in the blade of upper paddle 23, have one and be horizontally disposed with blade, rest blade is from the horizontal by acute angle and oblique lower setting; In the blade of lower paddle 25, have one with blade from the horizontal by acute angle and arrange obliquely, rest blade is from the horizontal by acute angle and oblique lower setting.
While adopting the coaxial two-direction agitating device for marine fracturing fluid continuous mixing device of the present invention to stir fracturing fluid, of the fracturing fluid liquid level exceeds paddle 23, motor 21 and lower motor 27 in unlatching, uploading moving axis 22 and lower drive shaft 26 drives respectively paddle 23 and lower paddle 25 to do Double-directional rotary along the axle center of shaft coupling 24, fracturing fluid is sheared, stirred, thereby fracturing fluid is fully stirred and shortens mixing time.
The various embodiments described above are only for illustrating the present invention, and wherein the structure of each parts, connected mode etc. all can change to some extent, and every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (5)
1. the coaxial two-direction agitating device for marine fracturing fluid continuous mixing device, it is characterized in that: it comprises an agitator tank and some agitators, some described agitators be take the central shaft of described agitator tank and are evenly fixedly installed in described agitator tank as interval, axle center; Described in each, agitator comprises that motor on, uploads paddle on moving axis,, a shaft coupling, once paddle, a lower drive shaft and motor once; Described upper motor and lower motor are fixedly installed on respectively on the upper cover plate and lower cover of described agitator tank, describedly upload the clutch end that the upper end of moving axis and the lower end of lower drive shaft are connected to described upper motor and lower motor, describedly upload the lower end of moving axis and the upper end of lower drive shaft is connected by described shaft coupling, described in described upper paddle and lower paddle are separately fixed at, upload on moving axis and lower drive shaft.
2. a kind of coaxial two-direction agitating device for marine fracturing fluid continuous mixing device as claimed in claim 1, is characterized in that: described agitator tank is arranged to cylindrical, and it comprises a tank body, a upper cover plate and a lower cover; Described upper cover plate is arranged on the upper end of described tank body, and described lower cover is arranged on the lower end of described tank body; On described upper cover plate, offer fracturing fluid entrance, on described lower cover, offer fracturing fluid outlet.
3. a kind of coaxial two-direction agitating device for marine fracturing fluid continuous mixing device as claimed in claim 1, is characterized in that: on described motor with described in upload the upper end link position of moving axis and the lower end link position of described lower motor and described lower drive shaft is provided with a protective cover.
4. a kind of coaxial two-direction agitating device for marine fracturing fluid continuous mixing device as claimed in claim 2, is characterized in that: on described motor with described in upload the upper end link position of moving axis and the lower end link position of described lower motor and described lower drive shaft is provided with a protective cover.
5. a kind of coaxial two-direction agitating device for marine fracturing fluid continuous mixing device as claimed in claim 1 or 2 or 3 or 4, is characterized in that: the blade quantity of described upper paddle and described lower paddle is set to more than two; In the blade of described upper paddle, have one and be horizontally disposed with blade, rest blade is from the horizontal by acute angle and oblique lower setting; In the blade of described lower paddle, have one with blade from the horizontal by acute angle and arrange obliquely, rest blade is from the horizontal by acute angle and oblique lower setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310565941.5A CN103623732A (en) | 2013-11-14 | 2013-11-14 | Coaxial bidirectional stirring device used in continuous offshore fracturing fluid blending device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310565941.5A CN103623732A (en) | 2013-11-14 | 2013-11-14 | Coaxial bidirectional stirring device used in continuous offshore fracturing fluid blending device |
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| CN103623732A true CN103623732A (en) | 2014-03-12 |
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| CN201310565941.5A Pending CN103623732A (en) | 2013-11-14 | 2013-11-14 | Coaxial bidirectional stirring device used in continuous offshore fracturing fluid blending device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107096418A (en) * | 2017-03-30 | 2017-08-29 | 浙江亚德复合材料有限公司 | Storage tank agitating device |
| CN111558316A (en) * | 2020-05-29 | 2020-08-21 | 中国石油天然气集团有限公司 | Device for preparing fracturing acidizing fracturing fluid with high viscosity and low resistance reduction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06170202A (en) * | 1992-12-09 | 1994-06-21 | Dainippon Ink & Chem Inc | Agitating device |
| CN201404786Y (en) * | 2009-02-19 | 2010-02-17 | 中国海洋石油总公司 | Polymer stirring device |
| CN203170270U (en) * | 2013-04-08 | 2013-09-04 | 烟台杰瑞石油服务集团股份有限公司 | Stirrer for fracturing equipment |
| CN203281253U (en) * | 2013-06-15 | 2013-11-13 | 响水县光明植物胶有限公司 | Double-driving-head efficient gelatine stirring device |
| CN203540414U (en) * | 2013-11-14 | 2014-04-16 | 中国海洋石油总公司 | Coaxial bidirectional agitating device for offshore fracturing fluid continuous mixing device |
-
2013
- 2013-11-14 CN CN201310565941.5A patent/CN103623732A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06170202A (en) * | 1992-12-09 | 1994-06-21 | Dainippon Ink & Chem Inc | Agitating device |
| CN201404786Y (en) * | 2009-02-19 | 2010-02-17 | 中国海洋石油总公司 | Polymer stirring device |
| CN203170270U (en) * | 2013-04-08 | 2013-09-04 | 烟台杰瑞石油服务集团股份有限公司 | Stirrer for fracturing equipment |
| CN203281253U (en) * | 2013-06-15 | 2013-11-13 | 响水县光明植物胶有限公司 | Double-driving-head efficient gelatine stirring device |
| CN203540414U (en) * | 2013-11-14 | 2014-04-16 | 中国海洋石油总公司 | Coaxial bidirectional agitating device for offshore fracturing fluid continuous mixing device |
Non-Patent Citations (2)
| Title |
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| 冯广平等: "《北京植物学史图鉴》", 30 April 2011, 北京科学技术出版社 * |
| 牛志荣: "《地基处理技术及工程应用》", 30 April 2004, 中国建材工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107096418A (en) * | 2017-03-30 | 2017-08-29 | 浙江亚德复合材料有限公司 | Storage tank agitating device |
| CN111558316A (en) * | 2020-05-29 | 2020-08-21 | 中国石油天然气集团有限公司 | Device for preparing fracturing acidizing fracturing fluid with high viscosity and low resistance reduction |
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Application publication date: 20140312 |