CN221889792U - Digital intelligent powder formulation dispensing-free variable viscosity fracturing fluid skid-mounted equipment - Google Patents
Digital intelligent powder formulation dispensing-free variable viscosity fracturing fluid skid-mounted equipment Download PDFInfo
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- CN221889792U CN221889792U CN202420364959.2U CN202420364959U CN221889792U CN 221889792 U CN221889792 U CN 221889792U CN 202420364959 U CN202420364959 U CN 202420364959U CN 221889792 U CN221889792 U CN 221889792U
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- fracturing fluid
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- 239000000843 powder Substances 0.000 title claims abstract description 82
- 239000012530 fluid Substances 0.000 title claims abstract description 26
- 239000000203 mixture Substances 0.000 title abstract description 6
- 238000009472 formulation Methods 0.000 title abstract description 5
- 239000007788 liquid Substances 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000001502 supplementing effect Effects 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000013589 supplement Substances 0.000 claims abstract description 4
- 239000002552 dosage form Substances 0.000 claims description 10
- 230000005484 gravity Effects 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 7
- 238000002156 mixing Methods 0.000 abstract description 7
- 238000010276 construction Methods 0.000 description 20
- 239000000839 emulsion Substances 0.000 description 14
- 239000003638 chemical reducing agent Substances 0.000 description 13
- 238000006073 displacement reaction Methods 0.000 description 9
- 238000002360 preparation method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000000725 suspension Substances 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229920002401 polyacrylamide Polymers 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000004323 axial length Effects 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000003995 emulsifying agent Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000375 suspending agent Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000008398 formation water Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000003079 shale oil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000012224 working solution Substances 0.000 description 1
Abstract
The utility model discloses a numerical-intelligence powder formulation dispensing-free variable viscosity fracturing fluid skid-mounted device, which relates to the technical field of fracturing fluid mixing devices and comprises a main pipeline, wherein one end of the main pipeline is a water inlet, the other end of the main pipeline is a liquid outlet, a water inlet pump, a fluid dispensing system and an online viscometer are arranged on the main pipeline, and a powder adding hopper is arranged on the fluid dispensing system; the screw feeder is used for adding materials into the powder adding hopper; and the powder supplementing system supplements materials for the spiral feeder. The utility model realizes the dispensing-free variable viscosity fracturing fluid by adjusting the viscosity of the fracturing fluid in real time.
Description
Technical Field
The utility model relates to the technical field of hydraulic fracturing devices for petroleum and natural gas, in particular to a digital intelligent powder type fracturing fluid skid-mounted device without being matched with variable viscosity.
Background
At present, in the shale oil gas development process, a working solution with high drag reduction and good sand carrying performance is required to be used for completing the fracturing engineering. Polyacrylamide (hereinafter abbreviated as PAM) is a preferred material with mature and stable performance, and PAM types can be classified into powder type, emulsion type and suspension type products according to different synthesis processes. The emulsion type and the suspension type have the advantages of short hydration time and quick viscosity, and can effectively meet the short-time viscosity effect required by site construction, thereby achieving the construction operation effect.
At present, the hydraulic fracturing operation of each mining area mainly adopts emulsion and suspension drag reducer to carry out continuous mixing and slickwater construction, and is characterized in that the continuous mixing construction can be carried out, and the quality of the mixed liquid can achieve the construction effect. However, emulsion, suspension drag reducers suffer from the following drawbacks:
1. The solid content of the emulsion drag reducer is 30% -40%; the solid content of the dry powder drag reducer is 100%. The emulsion has low solid content, about 60% of the emulsion is oil phase solvent, no help is provided for site construction, and certain damage is caused to stratum;
2. The production cost of the emulsion drag reducer is equivalent to that of the dry powder drag reducer, the addition of the emulsion drag reducer is about 0.1% in site construction, and the addition of the powder is only about 0.04% in construction under the condition of the same effective content. The use cost of the medicine is greatly reduced;
3. The emulsion drag reducer is packaged by adopting a ton barrel, in the construction process, the continuous supply of the emulsion drag reducer generally adopts a ton barrel as a transfer barrel, equipment for pumping and adding the emulsion drag reducer in the construction is generally gear pumps, pneumatic pumps and the like and is pumped out of the transfer barrel, and when the surplus in the ton barrel is insufficient, the problem of empty pumps is easily caused, so that the emulsion drag reducer is cut off. And the replenishment in the transfer barrel is generally transferred into the transfer barrel from other ton barrels by adopting an additional gear pump or a pneumatic pump, so that the supervision of an operator is needed at any time, and the intelligent management of the number cannot be realized.
4. Emulsion drag reducers typically exhibit more or less oil phase separation and stratification after 1 month of rest.
5. Common auxiliary additives mainly comprise an oil phase, organic bentonite, a suspending agent, a dispersing agent, an emulsifying agent and the like, wherein the oil phase is easy to be mixed with formation water and then emulsified, and the organic bentonite, the suspending agent, the dispersing agent, the emulsifying agent and the like are easy to be adsorbed on the surface of shale to block pore throats and microcracks, so that an oil gas flow channel is blocked, the permeability of a matrix is reduced, and the gas production is influenced.
At present, some equipment can be used for preparing powder and liquid, but continuous on-line construction and mixing cannot be realized, and the equipment is generally prepared by a large-scale fracturing truck or fracturing skid. But large-scale fracturing trucks or fracturing trucks have large occupied areas, high power consumption and high construction discharge, and are not suitable for continuous blending of slick water.
Disclosure of utility model
The utility model aims to provide a digital intelligent powder formulation dispensing-free variable viscosity fracturing fluid skid-mounted device, which solves the problems of fish eyes and uneven fluid dispensing existing in the existing powder directly mixed with water, is beneficial to reducing the product addition during construction and improving the use efficiency of the powder.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The intelligent powder dosage form dispensing-free variable viscosity fracturing fluid skid-mounted device comprises a main pipeline, wherein one end of the main pipeline is provided with a water inlet, the other end of the main pipeline is provided with a liquid outlet, a water inlet pump, a liquid dispensing system for powder mixing and an online viscometer are sequentially arranged on the main pipeline between the water inlet and the liquid outlet, and a powder adding hopper is arranged on the liquid dispensing system;
the screw feeder is used for adding materials into the powder adding hopper; and the powder supplementing system supplements materials for the spiral feeder.
Preferably, the liquid preparation system comprises a nozzle and a suction cavity which are arranged in the main pipeline, wherein the nozzle and the suction cavity are both arranged in the main pipeline, the nozzle opening of the nozzle is opposite to the inlet of the suction cavity and is positioned at the joint of the main pipeline and the powder adding hopper, and the nozzle and the suction cavity mix powder with liquid.
Preferably, the inlet and the outlet of the suction cavity are both in a horn shape, the axial length of the inlet is smaller than that of the outlet, and the horn shape is favorable for forming a negative pressure space.
Preferably, the nozzle comprises an outer ring and an inner ring arranged in the outer ring, and strip-shaped slits are arranged on the outer ring and the inner ring along the axial direction so as to enable the outer ring and the inner ring to have certain elasticity.
Preferably, the powder supplementing system comprises a powder storage tank and a powder supplementing device, wherein a screw feeder hopper is arranged on the screw feeder, and the powder supplementing device pumps materials in the powder storage tank into the screw feeder hopper through a pipeline.
Preferably, the main pipeline is provided with a main pipeline valve, and the main pipeline at the water inlet is provided with an electromagnetic flowmeter.
Preferably, a gravity sensor is arranged below the powder adding hopper and used for monitoring the weight of materials in the powder adding hopper.
Preferably, the powder supplementing device is a pneumatic powder pump or a screw conveying pump.
Preferably, the automatic feeding device also comprises a PLC controller, wherein the PLC controller is connected with the online viscometer, the electromagnetic flowmeter, the water inlet pump, the screw feeder, the gravity sensor and the powder supplementing system.
Compared with the prior art, the utility model has the following beneficial effects:
1. The utility model improves the problems of fish eyes and uneven liquid distribution existing in the prior art when powder is directly mixed with water, is beneficial to simultaneously reducing the product addition during construction, improves the use efficiency of the powder,
2. The utility model simultaneously eliminates secondary damage to stratum caused by other additives, and further improves the cleaning degree of the fracturing fluid.
3. According to the utility model, as the PLC is adopted for liquid preparation, the liquid preparation quality can be monitored in real time, and the addition amount of the dry powder drag reducer is automatically regulated according to the signal acquisition feedback of the liquid preparation quality, so that the viscosity of the fracturing liquid is intelligently controlled, the liquid is prepared before the hand-free, and the process of preparing the non-sticky fracturing liquid is realized.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of a liquid dispensing system according to the present utility model;
FIG. 3 is a front view of the nozzle of the present utility model;
FIG. 4 is a top view of the nozzle of the present utility model;
Fig. 5 is a flow chart of the operation of the present utility model.
In the figure: 1. the powder feeding device comprises a water feeding port, 2, an electromagnetic flowmeter, 3, a water inlet pump, 4, a powder adding valve, 5, a spiral feeder, 6, a gravity sensor, 7, a powder storage tank, 8, a powder supplementing device, 9, a main pipeline valve, 10, a nozzle, 11, an online viscometer, 12, a liquid outlet, 13, a screw feeder hopper, 14, a powder adding hopper, 15 and a suction cavity; 10-1 parts of outer ring, 10-2 parts of inner ring, 10-3 parts of strip-shaped seam.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Embodiment one:
Referring to fig. 1-4, a dispensing-free variable viscosity fracturing fluid skid-mounted device for an intelligent powder formulation comprises a main pipeline, wherein one end of the main pipeline is provided with a water inlet 1, the other end of the main pipeline is provided with a liquid outlet 12, a water inlet pump 3, a dispensing system for powder mixing and an online viscometer 11 are sequentially arranged on the main pipeline between the water inlet 1 and the liquid outlet 12, and a powder adding hopper 14 is arranged on the dispensing system;
And a screw feeder 5 for adding material to the powder adding hopper 14; and the powder supplementing system supplements materials for the screw feeder 5. A gravity sensor 6 is arranged below the powder adding hopper 14 and is used for monitoring the weight of materials in the powder adding hopper 14.
The liquid preparation system comprises a nozzle 10 and a suction cavity 15 which are arranged in a main pipeline, wherein the nozzle 10 and the suction cavity 15 are fixedly arranged in the main pipeline, the nozzle opening of the nozzle 10 is opposite to the inlet of the suction cavity 15 and is positioned at the joint of the main pipeline and a powder adding hopper 14, and powder and liquid are mixed by the nozzle and the suction cavity.
The nozzle 10 comprises an outer ring 10-1 and an inner ring 10-2 arranged in the outer ring 10-1, wherein strip-shaped slits 10-3 are arranged on the outer ring 10-1 and the inner ring 10-2 along the axial direction, the strip-shaped slits 10-3 enable the nozzle to have certain elasticity, and the outer ring 10-1 is fixed.
The inner diameter of the nozzle 10 is one of the main factors affecting the negative pressure, and a certain negative pressure is formed by changing the flow rate of the liquid. The material in the nozzle has a certain flow velocity, and the discharge capacity is increased or reduced by matching with the water inlet pump, so that the purpose of regulating the discharge capacity of the system can be achieved.
The inlet and the outlet of the suction cavity 15 are both in a horn shape, the axial length of the inlet is smaller than that of the outlet, and the horn shape is favorable for forming a negative pressure space. The liquid enters through the nozzle 10 under pressure and is converted into a high-speed flow under pressure. This high velocity flow is ejected into the suction chamber 15 creating a partial vacuum where the suction substance is mixed with the powder in the negative pressure chamber of the suction chamber 15.
The powder supplementing system comprises a powder storage tank 7 and a powder supplementing device 8, a screw feeder hopper 13 is arranged on the screw feeder 5, and the powder supplementing device 8 pumps materials in the powder storage tank 7 into the screw feeder hopper 13 through a pipeline.
The powder supplementing device is a pneumatic powder pump or a screw conveying pump.
The main pipeline is provided with a main pipeline valve 9, and the main pipeline at the water inlet 1 is provided with an electromagnetic flowmeter 2.
Embodiment two:
On the basis of the first embodiment, the utility model further comprises a PLC controller, wherein the PLC controller is connected with the online viscometer 11, the electromagnetic flowmeter 2, the water inlet pump 3, the screw feeder 5, the gravity sensor 6, the powder supplementing system and the like, and the model of the PLC controller is DVP-48EH.
The PLC controls and executes the devices such as the frequency modulation of the water inlet pump 3, the powder adding valve 4 and the like in real time to adjust the viscosity value according to the viscosity data fed back by the online viscometer 11 as constraint conditions by comparing with the viscosity data of the fracturing fluid required by the imported site, and feeds back the viscosity value according to the viscosity value after real-time adjustment.
As shown in fig. 5, the workflow of the PLC controller mainly includes the following aspects:
1. setting target viscosity and construction displacement of fracturing fluid according to site requirements, and giving displacement and viscosity instructions;
2. After receiving the construction displacement and viscosity, the PLC controller outputs displacement through system computing equipment according to the construction displacement, and outputs signals to the water inlet pump 3 for frequency modulation, and adjusts the discharge displacement; the screw feeder 5 gives out adding amount data according to the comparison of the viscosity and the displacement, and converts the adding amount into the adding weight of the powder adding system to realize liquid preparation;
3. The online viscometer 11 monitors the viscosity of the liquid discharged by the device in real time, the viscosity is fed back to the PLC controller and is compared with the target viscosity and the construction flow program, the PLC controller judges whether the viscosity meets the flow program set viscosity at the moment, and the set error value is smaller than 2%;
4. the PLC controller separately records and stores the output displacement and viscosity of each process in each construction according to the content of a preset flow program, and collects the output displacement and viscosity in units of time (seconds);
5. After the construction is completed, the equipment is closed.
Claims (9)
1. The intelligent powder dosage form dispensing-free variable viscosity fracturing fluid skid-mounted device is characterized by comprising a main pipeline, wherein one end of the main pipeline is provided with a water inlet (1) and the other end is provided with a liquid outlet (12), the main pipeline is provided with a water inlet pump (3), a liquid dispensing system and an online viscometer (11), and the liquid dispensing system is provided with a powder adding hopper (14);
The feeding machine also comprises a screw feeder (5) for adding materials into the powder adding hopper (14); the powder supplementing system supplements materials for the screw feeder (5).
2. The intelligent powder dosage form dispensing-free variable viscosity fracturing fluid skid-mounted device according to claim 1, wherein the fluid dispensing system comprises a nozzle (10) and a suction cavity (15) which are arranged in a main pipeline, the nozzle (10) and the suction cavity (15) are both arranged in the main pipeline, and a spout of the nozzle (10) is opposite to an inlet of the suction cavity (15) and is positioned at a joint of the main pipeline and a powder adding hopper (14).
3. The intelligent powder dosage form dispensing-free variable viscosity fracturing fluid skid-mounted device according to claim 2, wherein the inlet and outlet of the suction cavity (15) are horn-shaped cavities.
4. The dispensing-free variable viscosity fracturing fluid skid-mounted device for the digital and intelligent powder dosage forms, as claimed in claim 2, is characterized in that the nozzle (10) comprises an outer ring (10-1) and an inner ring (10-2) arranged in the outer ring (10-1), strip-shaped slits (10-3) are formed in the outer ring (10-1) and the inner ring (10-2) along the axial direction, and the outer ring is fixed.
5. The intelligent powder counting dosage form dispensing-free variable viscosity fracturing fluid skid-mounted device according to claim 1, wherein the powder supplementing system comprises a powder storage tank (7) and a powder supplementing device (8), a screw feeder hopper (13) is arranged on the screw feeder (5), and the powder supplementing device (8) pumps materials in the powder storage tank (7) into the screw feeder hopper (13).
6. The intelligent powder dosage form dispensing-free variable viscosity fracturing fluid skid-mounted device is characterized in that a main pipeline valve (9) is arranged on the main pipeline, and an electromagnetic flowmeter (2) is arranged on the main pipeline at the water inlet (1).
7. The intelligent powder dosage form dispensing-free variable viscosity fracturing fluid skid-mounted device according to claim 1, wherein a gravity sensor (6) is arranged below the powder adding hopper (14).
8. The intelligent powder dosage form dispensing-free variable viscosity fracturing fluid skid-mounted device of claim 5, wherein the powder supplementing device is a pneumatic powder pump or a screw conveying pump.
9. The intelligent powder counting dosage form dispensing-free variable viscosity fracturing fluid skid-mounted device is characterized by further comprising a PLC, wherein the PLC is connected with an online viscometer (11), an electromagnetic flowmeter (2), a water inlet pump (3), a screw feeder (5), a gravity sensor (6) and a powder supplementing system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420364959.2U CN221889792U (en) | 2024-02-27 | 2024-02-27 | Digital intelligent powder formulation dispensing-free variable viscosity fracturing fluid skid-mounted equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420364959.2U CN221889792U (en) | 2024-02-27 | 2024-02-27 | Digital intelligent powder formulation dispensing-free variable viscosity fracturing fluid skid-mounted equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221889792U true CN221889792U (en) | 2024-10-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420364959.2U Active CN221889792U (en) | 2024-02-27 | 2024-02-27 | Digital intelligent powder formulation dispensing-free variable viscosity fracturing fluid skid-mounted equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221889792U (en) |
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2024
- 2024-02-27 CN CN202420364959.2U patent/CN221889792U/en active Active
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