CN102758604B - Swelling technology for carrying out fracturing construction on fiber - Google Patents
Swelling technology for carrying out fracturing construction on fiber Download PDFInfo
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- CN102758604B CN102758604B CN201210265769.7A CN201210265769A CN102758604B CN 102758604 B CN102758604 B CN 102758604B CN 201210265769 A CN201210265769 A CN 201210265769A CN 102758604 B CN102758604 B CN 102758604B
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Abstract
The invention belongs to the technical field of fracturing construction in development of petroleum and gas and more particularly relates to a swelling technology for carrying out fracturing construction on fiber. The swelling technology is characterized in that high-pressure air forms negative pressure through an air jet sprayer and sucks bundle fiber; the bundle fiber is metered by volume by a metering screw pump and swelled by the air jet sprayer to form silky fiber; the silky fiber is blown away into a fracturing mixing tank by using air flowing at high speed in the negative area and is mixed with sandy fluid according to proportions; and the mixed fiber and sandy fluid and fracturing fluid are pressed into an oil and gas reservoir to carry out fiber fracturing construction. A swelling technology device for carrying out fracturing construction on the fiber consists of a fiber hopper, a frequency-conversion speed-adjusting motor, a metering screw pump, an air jet mixer, a corrugated pipe, a throttle and the fracturing mixing tank. According to the swelling technology for carrying out fracturing construction on the fiber, the negative pressure area is formed by using high-speed air, and the fracturing construction is carried out after the bundle fiber are converted into the silky fiber.
Description
Technical field
The invention belongs to natural petroleum gas field pressing crack construction technical field, is the expansion technique of pressing crack construction fiber.
Background technology
The fiber fracturing technology of anti-proppant backflow, it is a kind of new Fracturing Technology that recent domestic rises, its main method is mixed in fracturing fluid by monfil in pressing crack construction process, join together with proppant in the middle of oil-gas Layer, make the proppant in crack discharge in the process of liquid in well afterwards in pressure; Or in the manufacturing process of conventional gas and oil well, proppant is wrapped, do not allow it discharge with the liquid produced in well outside well, cause the support effect step-down of proppant fracture, have influence on chronicity and the validity of pressure break support effect.
At present, research and experiment both at home and abroad to fracturing fibre, substantially, be tending towards ripe, also can produce the fiber of applicable well fracturing construction, but the fiber produced is fiber of getting one's things ready, instead of filamentary fibers, will by expanded for bundle fiber this technology of one-tenth filamentary fibers, all be in confidential state both at home and abroad, also do not declare patent, also outwards do not carry out exchange of technology.
Summary of the invention
The object of this invention is to provide puffing technique and its device of a kind of pressing crack construction fiber, after making bundle fiber become filamentary fibers, carry out pressing crack construction.
Technical scheme of the present invention is the puffing technique of pressing crack construction fiber, it is characterized in that: utilize pressure-air by air-spray ejector, form negative pressure and suck bundle fiber, bundle fiber is after meter screw stem pump measures according to quantity, expanded by air-spray ejector, by expanded for bundle fiber one-tenth filamentary fibers, the swiftly flowing air in recycling negative pressuren zone dispels in pressure break blending tank, mix in proportion with husky liquid, be finally pressed into oil-gas Layer together with fracturing fluid, carry out fiber fracturing construction.
The puffing technique device of pressing crack construction fiber, it comprises fiber hopper, frequency conversion adjustable speed motor, metering screw bar pump, air-spray blender, bellows, restriction choke and pressure break blending tank, it is characterized in that: metering screw bar pump left end and adjustable speed variable-frequency motor are screwed and conducting; The hopper port of fiber hopper is welded and fixed with input port above the left end of metering screw bar pump case and is communicated with; Metering screw bar pump right-hand member is circular arc bend pipe, is communicated with by screwed connection with the top of air-spray blender; Restriction choke is arranged on the inside of air-spray blender, is connected with air-spray blender internal thread by variable buckle; The left end of bellows inserts the right part of air-spray blender, and is fixedly connected with by steel wire clip; The right part of bellows passes into the entrance of pressure break blending tank, and is fixedly connected with by clamp.
Described metering screw bar pump is driven by frequency conversion adjustable speed motor, and the range of speed control of frequency conversion adjustable speed motor is to 10L/min.
The diameter of described restriction choke is 3.5mm to 4mm, and require that supply gas pressure is 0.7MPa, namely the supply gas pressure of source of the gas is not less than 0.7MPa.
Described bellows can bear negative pressure, and can not inhale under swiftly flowing air-flow partially.
Described fiber hopper, when reinforced, remains that in hopper, fiber is full.
Feature of the present invention is by utilizing high-speed air to form negative pressuren zone, pressing crack construction is carried out after making bundle fiber become filamentary fibers, the blend tank of the alternative cement paste of puffing technique of this pressing crack construction fiber, directly can enter in well after utilizing this technology that cement is expanded and cement the well, reduce the blend tank equipment of cementing equipment, simplify cementing equipment further; And can to dry powder additive carry out expanded after add, shorten it and melt the swollen time, the technology of limit cobordant pressure can be carried out, reduce the link of on-the-spot dosing, reduce construction cost further.
Accompanying drawing explanation
Below in conjunction with embodiment, the present invention is further illustrated.
Fig. 1 is the structural representation of the puffing technique device of pressing crack construction fiber.
In figure: 1, fiber hopper; 2, frequency conversion adjustable speed motor; 3, metering screw bar pump; 4, high-pressure air inlet; 5, restriction choke; 6, air-spray ejector; 7, bellows; 8, pressure break blending tank; 9, negative pressure fluffing zone.
Detailed description of the invention
As shown in Figure 1, the puffing technique device of pressing crack construction fiber, it comprises fiber hopper 1, frequency conversion adjustable speed motor 2, metering screw bar pump 3, air-spray blender 6, bellows 7, restriction choke 5 and pressure break blending tank 8.
Metering screw bar pump 3 left end and adjustable speed variable-frequency motor 2 are screwed and conducting, adjustable speed variable-frequency motor 2 drives metering screw bar pump 3, carry out measuring to the fibre weight added and control, reach when for can the uniform requirement of rotating speed when different additions, guarantee the stable of expansion effect, the range of speed control of frequency conversion adjustable speed motor 2 is 1 to 10L/min.
The hopper port of fiber hopper 1 is welded and fixed with input port above the left end of metering screw bar pump 3 shell and is communicated with; Fiber hopper 1 adds material bin, and it is full for adding the fashionable fiber remained in hopper.
Metering screw bar pump 3 right-hand member is circular arc bend pipe, be communicated with by screwed connection with the top of air-spray blender 6, air-spray blender 6 left end is provided with high-pressure air inlet 4, and pressure-air enters air-spray blender 6 from high-pressure air inlet 4, and can form negative pressure fluffing zone 9.
Restriction choke 5 is arranged on the inside of air-spray blender 6, is connected with air-spray blender 6 internal thread by variable buckle.The diameter of restriction choke 5 is 3.5mm to 4mm, and require that supply gas pressure is 0.7MPa, namely the supply gas pressure of source of the gas is not less than 0.7MPa.
The left end of bellows 7 inserts the right part of air-spray blender 6, and is fixedly connected with by steel wire clip, and bellows 7 can bear negative pressure, and can not inhale under swiftly flowing air-flow partially.
The right part of bellows 7 passes into the entrance of pressure break blending tank 8, and is fixedly connected with by clamp.Be convenient to dismounting.
Puffing technique principle: the gas in material, after being reduced suddenly by the pressure of its surrounding environment, can expand; When this pressure reduction is urged enough large, this material can be made to break, even can be broken.Such as, flying upward of sand dust, bends, the puffing technique of food.
During work, bundle fiber enters the metering screw bar pump 3 driven by frequency conversion adjustable speed motor 2 through fiber hopper 1, the negative pressure fluffing zone 9 formed when utilizing pressure-air to spray at nozzle place, after fiber being sent into this position, the air news speed of dissolving in fiber expands, by expanded for bundle fiber one-tenth filamentary fibers, the swiftly flowing air in recycling negative pressuren zone is dispelled, be blown in mixing sand tank by a flexible pipe, be pressed into oil-gas Layer together with fracturing fluid, enter fiber fracturing.
The parts that the present embodiment does not describe in detail and structure belong to the well-known components of the industry and common structure or conventional means, do not describe one by one here.
Claims (5)
1. the puffing technique device of pressing crack construction fiber, it comprises fiber hopper (1), frequency conversion adjustable speed motor (2), metering screw bar pump (3), air-spray blender (6), bellows (7), restriction choke (5) and pressure break blending tank (8), it is characterized in that: metering screw bar pump (3) left end and adjustable speed variable-frequency motor (2) are screwed and conducting; The hopper port of fiber hopper (1) is welded and fixed with input port above the left end of metering screw bar pump (3) shell and is communicated with; Metering screw bar pump (3) right-hand member is circular arc bend pipe, is communicated with by screwed connection with the top of air-spray blender (6); Restriction choke (5) is arranged on the inside of air-spray blender (6), is connected with air-spray blender (6) internal thread by variable buckle; The left end of bellows (7) inserts the right part of air-spray blender (6), and is fixedly connected with by steel wire clip; The right part of bellows (7) passes into the entrance of pressure break blending tank (8), and is fixedly connected with by clamp.
2. according to the puffing technique device of the pressing crack construction fiber described in claim 1, it is characterized in that: described metering screw bar pump (3) is driven by frequency conversion adjustable speed motor (2), and the range of speed control of frequency conversion adjustable speed motor (2) is 1 to 10L/min.
3. according to the puffing technique device of the pressing crack construction fiber described in claim 1, it is characterized in that: the diameter of described restriction choke (5) is 3.5mm to 4mm, require that supply gas pressure is 0.7MPa.
4. according to the puffing technique device of the pressing crack construction fiber described in claim 1, it is characterized in that: described bellows (7) can bear negative pressure, and can not inhale under swiftly flowing air-flow partially.
5. according to the puffing technique device of the pressing crack construction fiber described in claim 1, it is characterized in that: described fiber hopper (1), when reinforced, remains that in hopper, fiber is full.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210265769.7A CN102758604B (en) | 2012-07-30 | 2012-07-30 | Swelling technology for carrying out fracturing construction on fiber |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210265769.7A CN102758604B (en) | 2012-07-30 | 2012-07-30 | Swelling technology for carrying out fracturing construction on fiber |
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| CN102758604A CN102758604A (en) | 2012-10-31 |
| CN102758604B true CN102758604B (en) | 2014-12-17 |
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| CN201210265769.7A Active CN102758604B (en) | 2012-07-30 | 2012-07-30 | Swelling technology for carrying out fracturing construction on fiber |
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| US10020711B2 (en) | 2012-11-16 | 2018-07-10 | U.S. Well Services, LLC | System for fueling electric powered hydraulic fracturing equipment with multiple fuel sources |
| US10119381B2 (en) | 2012-11-16 | 2018-11-06 | U.S. Well Services, LLC | System for reducing vibrations in a pressure pumping fleet |
| CN104121005B (en) * | 2014-07-15 | 2016-10-05 | 中北大学 | High energy air stream drives proppant imports the equipment on underground fracture stratum |
| CN104712272A (en) * | 2014-08-01 | 2015-06-17 | 孙泽义 | Fast SW drilling fluid hydrating and preparing device |
| CN106215795B (en) * | 2016-09-18 | 2019-02-19 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of prewired formula fiber dispersal device and method and application |
| CN107469723A (en) * | 2017-09-08 | 2017-12-15 | 成都劳恩普斯科技有限公司 | A kind of accurate formula liquid dispensing device and fracturing fluid liquid mixing system |
| CA3115650A1 (en) | 2018-10-09 | 2020-04-23 | U.S. Well Services, LLC | Electric powered hydraulic fracturing pump system with single electric powered multi-plunger pump fracturing trailers, filtration units, and slide out platform |
| WO2020231483A1 (en) | 2019-05-13 | 2020-11-19 | U.S. Well Services, LLC | Encoderless vector control for vfd in hydraulic fracturing applications |
| CN110145277A (en) * | 2019-06-12 | 2019-08-20 | 烟台杰瑞石油装备技术有限公司 | A kind of dry cementing equipment for adding system of collection fiber |
| CA3148987A1 (en) | 2019-08-01 | 2021-02-04 | U.S. Well Services, LLC | High capacity power storage system for electric hydraulic fracturing |
| CN111502626A (en) * | 2020-05-18 | 2020-08-07 | 常州市易用科技有限公司 | High-pressure liquid quantitative sand carrying device |
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| US4335965A (en) * | 1978-07-07 | 1982-06-22 | Dresser Industries, Inc. | Fiber-resin blending technique |
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| CN201640030U (en) * | 2010-03-22 | 2010-11-24 | 陕西科技大学 | Multifunctional straw processing machine |
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| JP2004532644A (en) * | 2001-06-19 | 2004-10-28 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | How to dry coat food particles or enclose frozen liquid particles |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4335965A (en) * | 1978-07-07 | 1982-06-22 | Dresser Industries, Inc. | Fiber-resin blending technique |
| CN2291794Y (en) * | 1997-03-27 | 1998-09-23 | 张正 | Grain-saving biological fodder bulking machine |
| CN1906340A (en) * | 2004-01-06 | 2007-01-31 | 纳幕尔杜邦公司 | Process for preparing poly(trimethylene 1,3-terephthalate) fiber |
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| CN102758604A (en) | 2012-10-31 |
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