CN106761648A - Pressure break mixing device, fracturing process, sand blender - Google Patents
Pressure break mixing device, fracturing process, sand blender Download PDFInfo
- Publication number
- CN106761648A CN106761648A CN201710083929.9A CN201710083929A CN106761648A CN 106761648 A CN106761648 A CN 106761648A CN 201710083929 A CN201710083929 A CN 201710083929A CN 106761648 A CN106761648 A CN 106761648A
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- pressure
- valve
- storage room
- holding vessel
- secondary stress
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- 239000004576 sand Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000008569 process Effects 0.000 title claims abstract description 8
- 239000012530 fluid Substances 0.000 claims abstract description 138
- 238000003860 storage Methods 0.000 claims abstract description 115
- 238000002347 injection Methods 0.000 claims abstract description 64
- 239000007924 injection Substances 0.000 claims abstract description 64
- 239000007787 solid Substances 0.000 claims description 62
- 239000002245 particle Substances 0.000 claims description 59
- 239000007788 liquid Substances 0.000 claims description 22
- 238000005086 pumping Methods 0.000 claims description 17
- 238000010276 construction Methods 0.000 abstract description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 45
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 16
- 229910002092 carbon dioxide Inorganic materials 0.000 description 8
- 239000001569 carbon dioxide Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
Abstract
The invention discloses a kind of pressure break mixing device, fracturing process, sand blender, it is related to adopt oil/gas equipment technical field.Pressure break mixing device of the present invention, including：Pressure storage, pressure storage is divided into principal pressure storage room and secondary stress storage room, is connected by storage room valve between principal pressure storage room and secondary stress storage room；Secondary stress storage room is provided with injection pressure mouthful valve and feeding port valve, and principal pressure storage room is provided with fracturing fluid outlet valve.The present invention can solve the problem that pressure break mixing device of the prior art cannot meet the technical problem of Large Scale and Continuous construction operation.
Description
Technical field
The present invention relates to adopt oil/gas equipment technical field, more particularly to a kind of pressure break mixing device, fracturing process, mulling
Equipment.
Background technology
Oil, gas well in formation testing or production process, near wellbore zone have pollution or stratum original permeability it is low due to
Oil, gas well yield can be caused relatively low, and this problem can be solved by fracturing technique.
Fracturing technique refer to recover the oil or gas production process in, acted on using fluid pressure, the reservoir of oil, gas is formed crack
A kind of method, its concrete operations are using the pump of high-pressure large-displacement, using the principle of liquid pressure transmission, by the pressure with certain viscosity
Liquid is split, is injected to reservoir with the pressure of the absorbability more than reservoir, and gradually rise well cylinder pressure, so as to be suppressed in shaft bottom
High pressure is played, when tensile strength of this pressure more than the crustal stress near the borehole wall and formation rock, just is produced from stratum near shaft bottom
Raw crack, continues to inject fracturing fluid, and crack extends forward and fills out with fracturing fluid, and fracturing fluid is present in crack after closing well, so that
The sand packed fracture with certain physical dimension and high flow conductivity is formed in stratum near shaft bottom, well is reached increasing yield and injection
Purpose.Wherein, fracturing fluid by the base fluid as solvent (for example：Liquid carbon dioxide or LPG) and as the solid of solute
Particle is (for example：Quartz sand) mixture forms.
At present, pressure break mixing device can be used in mixture solid, liquid raw material and become fracturing fluid；Specifically, prior art
In pressure break mixing device mainly include：Solids delivery device and the pressure vessel turned on it, the pressure vessel are provided with base
Liquid introducing port and solid-liquid export mouth.When using, solids delivery device is first passed through to adding sand, plus sand to finish in pressure vessel
Afterwards, then by the base fluid introducing port of pressure vessel it is connected with base fluid storage device, solid-liquid export mouth is connected with pressure break pumping equipment, with
Make base fluid storage device, pressure vessel that the confined space for connecting is formed with pressure break pumping equipment, then to slow in pressure vessel
Base fluid is filled, when the temperature and pressure of sand in pressure vessel reaches construction operation requirement, base fluid introducing port valve is closed, is stopped
Only fill, last base fluid is discharged after mixing with sand in pressure vessel by solid-liquid export mouth, into pressure break pumping equipment.
However, present inventor has found, due to needing to be always ensured that pressure vessel is high pressure during construction operation
Confined space, using effectively storage by liquid carbon dioxide or LPG as base fluid fracturing fluid, therefore existing pressure break is mixed
Sand device is typically quantitative and first plus after sand builds the pressure again, after quantitative sand is finished, stops work plus could construct after sand builds the pressure again, so as to lead
Causing existing pressure break mixing device cannot continuously construct, and can only also meet small-sized construction operation, it is impossible to be applied to Large Construction work
Industry.
The content of the invention
It is an object of the invention to provide a kind of pressure break mixing device, fracturing process, sand blender, to solve prior art
In pressure break mixing device cannot meet the technical problem of Large Scale and Continuous construction operation.
The present invention provides a kind of pressure break mixing device, including：Pressure storage, the pressure storage is divided into principal pressure storage
Room and secondary stress storage room are deposited, is connected by storage room valve between the principal pressure storage room and the secondary stress storage room；
The secondary stress storage room is provided with injection pressure mouthful valve and feeding port valve, and the principal pressure storage room is provided with fracturing fluid outlet
Valve.
Wherein, the secondary stress storage room is additionally provided with and bleeds off pressure a mouthful valve.
Relative to prior art, pressure break mixing device of the present invention has the advantage that：
In the pressure break mixing device that the present invention is provided, due to be provided with the principal pressure storage room that is connected by storage room valve and
The pressure storage that secondary stress storage room is constituted, and secondary stress storage room is provided with injection pressure mouthful valve and feeding port valve, main pressure
Power storage room is provided with fracturing fluid outlet valve, therefore can be with when using：Close storage room valve, injection pressure mouthful valve and fracturing fluid
Outlet valve, and open feeding port valve；Solid particle enters in secondary stress storage room through feeding port valve；Treat that solid particle is defeated
Send after finishing, close feeding port valve；Injection pressure mouthful valve is opened, base fluid enters in secondary stress storage room through injection pressure mouthful valve；Treat
After base fluid injection is finished, injection pressure mouthful valve is closed；Storage room valve is opened, solid particle and base fluid are pressed through storage room valve by pair
After power storage room enters principal pressure storage room, storage room valve is closed, solid particle and base fluid mix in principal pressure storage room
Form fracturing fluid；Fracturing fluid outlet valve is opened, fracturing fluid is delivered to pumping through fracturing fluid outlet valve by principal pressure storage room
System；When needing to add sand, feeding port valve is opened, solid particle enters in secondary stress storage room through feeding port valve；Treat solid
After particle conveying is finished, feeding port valve is closed；Injection pressure mouthful valve is opened, base fluid enters secondary stress storage room through injection pressure mouthful valve
It is interior；After base fluid injection is finished, injection pressure mouthful valve is closed；Storage room valve is opened, solid particle and base fluid are through storage room valve
After entering principal pressure storage room by secondary stress storage room, storage room valve is closed, solid particle and base fluid are in principal pressure storage room
Fracturing fluid is inside mixed to form, fracturing fluid is delivered to pumping system through fracturing fluid outlet valve by principal pressure storage room.Thus analyze
Understand, the pressure break mixing device that the present invention is provided can be always ensured that principal pressure storage room is in during using and adding sand
High pressure sealing state such that it is able to realize continuously adding sand in use, and then disclosure satisfy that Large Scale and Continuous construction operation.
The present invention provides a kind of pressure break mixing device, including：Principal pressure holding vessel and secondary stress holding vessel, the principal pressure
Connected by reservoir valve between holding vessel and the secondary stress holding vessel；The secondary stress holding vessel is provided with injection pressure mouthful valve
Door and feeding port valve, the principal pressure holding vessel are provided with fracturing fluid outlet valve.
Wherein, the secondary stress holding vessel is additionally provided with and bleeds off pressure a mouthful valve.
Specifically, the injection pressure mouthful valve is communicated with liquid carbon dioxide tank car or LPG tank car.
During practical application, feeder is communicated with the feeding port valve.
Wherein, the feeder is auger feeding machine.
Specifically, the discharging opening of the auger feeding machine is connected with the feeding port valve.
During practical application, sand deliverer is communicated with the fracturing fluid outlet valve.
Wherein, the sand deliverer is screw conveyer.
Specifically, the feed hopper of the screw conveyer is connected with the fracturing fluid outlet valve.
During practical application, the principal pressure holding vessel is at least correspondingly arranged on two secondary stress holding vessels.
Wherein, multiple secondary stress holding vessels are disposed on the top area of the principal pressure holding vessel.
During practical application, the reservoir valve is located at bottom, the principal pressure holding vessel of the secondary stress holding vessel
Top area.
Wherein, the feeding port valve is located at the top area of the secondary stress holding vessel.
Specifically, the injection pressure mouthful valve is located at the top of the secondary stress holding vessel.
Further, the fracturing fluid outlet valve is located at the bottom of the principal pressure holding vessel.
Further, mouthful valve that bleeds off pressure is positioned at the top of the secondary stress holding vessel.
During practical application, principal pressure holding vessel described at least two is provided with the pressure break mixing device.
Wherein, the cross section of the principal pressure holding vessel is circular, rectangle or ellipse.
Specifically, the cross section of the secondary stress holding vessel is circular, rectangle or ellipse.
Relative to prior art, pressure break mixing device of the present invention has the advantage that：
The present invention provide pressure break mixing device in, due to be provided with by reservoir valve connect principal pressure holding vessel and
Secondary stress holding vessel, and secondary stress holding vessel is provided with injection pressure mouthful valve and feeding port valve, principal pressure holding vessel are provided with pressure
Split liquid outlet valve, therefore can be with when using：Reservoir valve, injection pressure mouthful valve and fracturing fluid outlet valve are closed, and is opened
Feeding port valve；Solid particle enters in secondary stress holding vessel through feeding port valve；After solid particle conveying is finished, in closing
Material mouth valve；Injection pressure mouthful valve is opened, base fluid enters in secondary stress holding vessel through injection pressure mouthful valve；After base fluid injection is finished,
Close injection pressure mouthful valve；Reservoir valve is opened, solid particle and base fluid are entered through reservoir valve by secondary stress holding vessel to be led
After pressure storage, reservoir valve is closed, solid particle and base fluid are mixed to form fracturing fluid in principal pressure holding vessel；Open
Fracturing fluid outlet valve, fracturing fluid is delivered to pumping system through fracturing fluid outlet valve by principal pressure holding vessel；When needing to add sand,
Feeding port valve is opened, solid particle enters in secondary stress holding vessel through feeding port valve；After solid particle conveying is finished, close
Close material mouth valve；Injection pressure mouthful valve is opened, base fluid enters in secondary stress holding vessel through injection pressure mouthful valve；Treat that base fluid injection is finished
Afterwards, injection pressure mouthful valve is closed；Reservoir valve is opened, solid particle and base fluid are entered through reservoir valve by secondary stress holding vessel
After principal pressure holding vessel, reservoir valve is closed, solid particle and base fluid are mixed to form fracturing fluid in principal pressure holding vessel, pressed
Split liquid and pumping system is delivered to by principal pressure holding vessel through fracturing fluid outlet valve.Thus knowable to analysis, the pressure that the present invention is provided
Splitting mixing device can be always ensured that principal pressure holding vessel is in high pressure sealing state during using and adding sand, so as to
It is enough to realize continuously adding sand in use, and then disclosure satisfy that Large Scale and Continuous construction operation.
The present invention provides a kind of fracturing process, comprises the following steps：Noted in secondary stress holding vessel or secondary stress storage room
Enter solid particle and base fluid, and be forced into preset value；The solid particle and base fluid pressurize enter principal pressure holding vessel or main pressure
Power storage room, is mixed to form fracturing fluid and externally pumps；Pressure is externally pumped in the principal pressure holding vessel or principal pressure storage room
While splitting liquid, continue to inject solid particle and base fluid in the secondary stress holding vessel or secondary stress storage room, be forced into pre-
If value, for supplementing the fracturing fluid in the principal pressure holding vessel or principal pressure storage room.
The present invention also provides a kind of sand blender, including：Pressure break mixing device according to any of the above-described.
During practical application, the sand blender is that fracturing blender truck or mulling are prized.
The sand blender had the advantage that relative to prior art with above-mentioned pressure break mixing device it is identical, herein no longer
Repeat.
Brief description of the drawings
The accompanying drawing for constituting a part of the invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate, for explaining the present invention, not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is a kind of structural representation of pressure break mixing device provided in an embodiment of the present invention；
Fig. 2 is the structural representation of another pressure break mixing device provided in an embodiment of the present invention.
In figure：
10- pressure storages；11- principal pressure storage rooms；
12- secondary stress storage rooms；13- storage room valves；
121- injection pressures mouthful valve；122- feeding port valves；
111- fracturing fluid outlet valves；123- bleeds off pressure a mouthful valve；
01- principal pressure holding vessels；02- secondary stress holding vessels；
03- reservoir valves；04- feeders；
05- sand deliverers.
Specific embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 1 is a kind of structural representation of pressure break mixing device provided in an embodiment of the present invention.
As shown in figure 1, the embodiment of the present invention provides a kind of pressure break mixing device, including：Pressure storage 10, pressure reservoir
10 points of tank is principal pressure storage room 11 and secondary stress storage room 12, is passed through between principal pressure storage room 11 and secondary stress storage room 12
Storage room valve 13 is connected；Secondary stress storage room 12 is provided with injection pressure mouthful valve 121 and feeding port valve 122, principal pressure storage
Room 11 is provided with fracturing fluid outlet valve 111.
Relative to prior art, the pressure break mixing device described in the embodiment of the present invention has the advantage that：
In pressure break mixing device provided in an embodiment of the present invention, as shown in figure 1, being connected by storage room valve 13 due to being provided with
The pressure storage 10 that logical principal pressure storage room 11 and secondary stress storage room 12 are constituted, and secondary stress storage room 12 is provided with note
Pressure mouth valve 121 and feeding port valve 122, principal pressure storage room 11 are provided with fracturing fluid outlet valve 111, therefore can when using
With：Storage room valve 13, injection pressure mouthful valve 121 and fracturing fluid outlet valve 111 are closed, and opens feeding port valve 122；Solid
Particle enters in secondary stress storage room 12 through feeding port valve 122；After solid particle conveying is finished, feeding port valve is closed
122；Injection pressure mouthful valve 121 is opened, base fluid enters in secondary stress storage room 12 through injection pressure mouthful valve 121；Treat that base fluid injection is finished
Afterwards, injection pressure mouthful valve 121 is closed；Storage room valve 13 is opened, solid particle and base fluid are stored up through storage room valve 13 by secondary stress
Deposit after room 12 enters principal pressure storage room 11, close storage room valve 13, solid particle and base fluid are in principal pressure storage room 11
It is mixed to form fracturing fluid；Fracturing fluid outlet valve 111 is opened, fracturing fluid is through fracturing fluid outlet valve 111 by principal pressure storage room
11 are delivered to pumping system；When needing to add sand, feeding port valve 122 is opened, solid particle enters secondary pressure through feeding port valve 122
In power storage room 12；After solid particle conveying is finished, feeding port valve 122 is closed；Open injection pressure mouthful valve 121, base fluid warp
Injection pressure mouthful valve 121 enters in secondary stress storage room 12；After base fluid injection is finished, injection pressure mouthful valve 121 is closed；Open storage
After room valve 13, solid particle and base fluid enter principal pressure storage room 11 through storage room valve 13 by secondary stress storage room 12, close
Storage room valve 13 is closed, solid particle and base fluid are mixed to form fracturing fluid in principal pressure storage room 11, and fracturing fluid is through fracturing fluid
Outlet valve 111 is delivered to pumping system by principal pressure storage room 11.Thus knowable to analysis, pressure break provided in an embodiment of the present invention
Mixing device can be always ensured that principal pressure storage room 11 is in high pressure sealing state during using and adding sand, so as to
It is enough to realize continuously adding sand in use, and then disclosure satisfy that Large Scale and Continuous construction operation.
Wherein, in order to prevent plus sand during open feeding port valve 122 when, cause secondary stress storage room 12 and pressure
Holding vessel 10 explodes, as shown in figure 1, above-mentioned secondary stress storage room 12 should still be provided with and bleed off pressure mouthful valve 123, so as to add
Before opening feeding port valve 122 during sand, should first open and bleed off pressure mouthful valve 123, and then 123 pairs, mouthful valve is bled off pressure by this
Pressure in secondary stress storage room 12 is discharged, to effectively improve the security of pressure break mixing device.
Fig. 2 is the structural representation of another pressure break mixing device provided in an embodiment of the present invention.
As shown in Fig. 2 the embodiment of the present invention provides a kind of pressure break mixing device, including：Principal pressure holding vessel 01 and secondary pressure
Power holding vessel 02, is connected between principal pressure holding vessel 01 and secondary stress holding vessel 02 by reservoir valve 03；Secondary stress is stored
Tank 02 is provided with injection pressure mouthful valve 121 and feeding port valve 122, and principal pressure holding vessel 01 is provided with fracturing fluid outlet valve 111.
Relative to prior art, the pressure break mixing device described in the embodiment of the present invention has the advantage that：
In pressure break mixing device provided in an embodiment of the present invention, as shown in Fig. 2 being connected by reservoir valve 03 due to being provided with
Logical principal pressure holding vessel 01 and secondary stress holding vessel 02, and secondary stress holding vessel 02 is provided with injection pressure mouthful valve 121 and feeding
Mouthful valve 122, principal pressure holding vessel 01 are provided with fracturing fluid outlet valve 111, therefore can be with when using：Close reservoir valve
03rd, injection pressure mouthful valve 121 and fracturing fluid outlet valve 111, and open feeding port valve 122；Solid particle is through feeding port valve
122 enter in secondary stress holding vessel 02；After solid particle conveying is finished, feeding port valve 122 is closed；Open injection pressure mouthful valve
121, base fluid enters in secondary stress holding vessel 02 through injection pressure mouthful valve 121；After base fluid injection is finished, injection pressure mouthful valve is closed
121；Reservoir valve 03 is opened, solid particle and base fluid enter principal pressure and store up through reservoir valve 03 by secondary stress holding vessel 02
After depositing tank 01, reservoir valve 03 is closed, solid particle and base fluid are mixed to form fracturing fluid in principal pressure holding vessel 01；Open
Fracturing fluid outlet valve 111, fracturing fluid is delivered to pumping system through fracturing fluid outlet valve 111 by principal pressure holding vessel 01；Need
When adding sand, feeding port valve 122 is opened, solid particle enters in secondary stress holding vessel 02 through feeding port valve 122；Treat solid
After particle conveying is finished, feeding port valve 122 is closed；Injection pressure mouthful valve 121 is opened, base fluid enters secondary through injection pressure mouthful valve 121
In pressure storage 02；After base fluid injection is finished, injection pressure mouthful valve 121 is closed；Open reservoir valve 03, solid particle and
After base fluid enters principal pressure holding vessel 01 through reservoir valve 03 by secondary stress holding vessel 02, reservoir valve 03, solid are closed
Particle and base fluid are mixed to form fracturing fluid in principal pressure holding vessel 01, and fracturing fluid is through fracturing fluid outlet valve 111 by principal pressure
Holding vessel 01 is delivered to pumping system.Thus analysis understands that pressure break mixing device provided in an embodiment of the present invention can used
With plus sand during, be always ensured that principal pressure holding vessel 01 be in high pressure sealing state such that it is able to realize in use
Continuously add sand, and then disclosure satisfy that Large Scale and Continuous construction operation.
Wherein, in order to prevent plus sand during open feeding port valve 122 when, cause secondary stress holding vessel 02 and main pressure
Power holding vessel 01 explodes, as shown in Fig. 2 above-mentioned secondary stress holding vessel 02 should still be provided with and bleed off pressure mouthful valve 123, so that
Plus should first open and bleed off pressure mouthful valve 123, and then mouthful valve 123 is bled off pressure by this before unlatching feeding port valve 122 during sand
Pressure in secondary stress holding vessel 02 is discharged, to effectively improve the security of pressure break mixing device.
Specifically, above-mentioned injection pressure mouthful valve 121 is communicated with liquid carbon dioxide tank car or LPG tank car.Due to using
When water base or oil base fracturing fluid carries out fracturing operation, easily reservoir being caused damage after degradation, (especially degraded is produced
Impurity can cause damage to the pore around Reservoir Fracture), and after the completion of pressure break, water base or oil base fracturing fluid is anti-when arranging
Between more long, anti-row's effect it is poor, the easily normal exploitation of influence petroleum-gas fiedl, therefore in order to solve the above problems, the present invention is implemented
The injection pressure mouthful valve 121 of the pressure break mixing device that example is provided is communicated with liquid carbon dioxide tank car or LPG tank car, so that
By liquid carbon dioxide or LPG as fracturing fluid base fluid.
During practical application, for the ease of the conveying of solid particle, as shown in Fig. 2 can be even at above-mentioned feeding port valve 122
Feeder 04 is connected with, so as to realize the conveying to solid particle by the feeder 04, makes solid particle by feeding port valve 122
Into in secondary stress holding vessel 02.Wherein, operated to realize the feeding from lower toward eminence, above-mentioned feeder 04 can be elected as
Auger feeding machine, thus by auger feeding machine realize by solid particle by lower position (for example：At feeding hopper) be delivered to compared with
The purpose of high position (at feeding port valve 122).During specific assembling, as shown in Fig. 2 the discharging opening and feeding port of auger feeding machine
Valve 122 is connected, thus solid particle can in the presence of auger motor and auger boosted cylinder by feeding hopper lifted it is defeated
Discharge outlet is delivered to, and is entered in secondary stress holding vessel 02 through feeding port valve 122 by discharging opening.
During practical application, for the ease of the conveying of fracturing fluid, as shown in Fig. 2 can be with above-mentioned fracturing fluid outlet valve 111
Sand deliverer 05 is communicated with, so as to realize the conveying to fracturing fluid by the sand deliverer 05, makes fracturing fluid through fracturing fluid outlet valve
111 are delivered to pumping system by principal pressure holding vessel 01.Wherein, in order to realize the operation of low speed sediment transport, above-mentioned sand deliverer well
05 can elect screw conveyer as.During specific assembling, as shown in Fig. 2 the feed hopper of screw conveyer 05 and fracturing fluid outlet valve
Door 111 is connected, so that fracturing fluid can be through the feed hopper of screw conveyer 05 and in the case where paddle motor and blade are acted on by main pressure
Power holding vessel 01 is steadily delivered to pumping system.
During practical application, in order to improve the operating efficiency of pressure break mixing device, as described in Figure 2, above-mentioned principal pressure holding vessel
01 can at least be correspondingly arranged on two secondary stress holding vessels 02, so as to the friendship when sand is added by multiple secondary stress holding vessels 02
For adding sand or adding sand simultaneously, to realize improving the purpose of pressure break mixing device operating efficiency.
Wherein, secondary stress holding vessel 02 can smoothly be entered by principal pressure holding vessel 01 to ensure solid particle and base fluid
In, as shown in Fig. 2 multiple secondary stress holding vessels 02 can be disposed on the top area of principal pressure holding vessel 01, so that solid
Body particle and base fluid voluntarily can enter secondary stress holding vessel 02 by principal pressure holding vessel 01 under gravity.It is this kind of to set
Put, without adding conveying device in tank body such that it is able to simplify the structure of pressure break mixing device, and reduce manufacturing cost and dimension
Shield cost.
During practical application, for the ease of solid particle and base fluid in principal pressure holding vessel 01 and secondary stress holding vessel 02
Conveying circulation, as shown in Fig. 2 reservoir valve 03 is located at bottom, the top of principal pressure holding vessel 01 of secondary stress holding vessel 02
Region；Also, feeding port valve 122 is located at the top area of secondary stress holding vessel 02, injection pressure mouthful valve 121 is stored up positioned at secondary stress
The top of tank 02 is deposited, fracturing fluid outlet valve 111 is located at the bottom of principal pressure holding vessel 01, so that solid particle and base fluid can
The whole driving by Action of Gravity Field is realized voluntarily conveying in principal pressure holding vessel 01 and secondary stress holding vessel 02.
Wherein, discharged in order to expeditiously realize the pressure in secondary stress holding vessel 02, as shown in Fig. 2 above-mentioned put
Pressure mouth valve 123 may be located at the top of secondary stress holding vessel 02, so as to ensure that gases at high pressure can be by secondary stress holding vessel 02
Sprayed directly up through bleeding off pressure mouthful valve 123, realization is efficient, rapidly bleed off pressure operation, and ensures the safety of pressure break mixing device
Property, effectively play explosion-proof.
During practical application, in order to further improve the operating efficiency of pressure break mixing device, at least two masters can be provided with
Pressure storage 01, and each principal pressure holding vessel 01 can be correspondingly arranged on multiple secondary stress holding vessels 02, so that by many
Individual principal pressure holding vessel 01 and multiple secondary stress holding vessels 02, further to effectively improve the operating efficiency of pressure break mixing device.
Wherein, there is bearing capacity higher in order to ensure principal pressure holding vessel 01 and secondary stress holding vessel 02, while compared with
Big degree ground reduces cost, as shown in Fig. 2 the cross section of above-mentioned principal pressure holding vessel 01 and secondary stress holding vessel 02 can be with excellent
Elect circular or oval as.Certainly, the cross section of principal pressure holding vessel 01 and secondary stress holding vessel 02 can also be other shapes,
Such as rectangle etc., this is not restricted.
The embodiment of the present invention provides a kind of fracturing process, comprises the following steps：Stored up in secondary stress holding vessel 02 or secondary stress
Injection solid particle and base fluid in room 12 is deposited, and is forced into preset value；Solid particle and base fluid pressurize enter principal pressure holding vessel
01 or principal pressure storage room 11, it is mixed to form fracturing fluid and externally pumps；In principal pressure holding vessel 01 or principal pressure storage room 11
Externally while pumping fracturing fluid, continue to inject solid particle and base in secondary stress holding vessel 02 or secondary stress storage room 12
Liquid, is forced into preset value, for supplementing the fracturing fluid in principal pressure holding vessel 01 or principal pressure storage room 11.
During concrete operations, with reference to shown in Fig. 2, may include steps of：Close reservoir valve 03, injection pressure mouthful valve
121st, mouthful valve 123 and fracturing fluid outlet valve 111 are bled off pressure, and opens feeding port valve 122；Solid particle passes through auger feeding
Machine enters in secondary stress holding vessel 02 through feeding port valve 122；After solid particle conveying is finished, feeding port valve 122 is closed；Open
Injection pressure mouthful valve 121 is opened, base fluid enters secondary pressure by liquid carbon dioxide tank car or LPG tank car through injection pressure mouthful valve 121
In power holding vessel 02；After base fluid injection is finished, injection pressure mouthful valve 121 is closed；Open reservoir valve 03, solid particle and base fluid
After entering principal pressure holding vessel 01 by secondary stress holding vessel 02 through reservoir valve 03 under gravity, reservoir valve is closed
03, solid particle and base fluid are mixed to form fracturing fluid in principal pressure holding vessel 01；Open fracturing fluid outlet valve 111, pressure break
Liquid is delivered to pumping system through fracturing fluid outlet valve 111 by screw conveyer by principal pressure holding vessel 01；When needing to add sand,
Unlatching bleeds off pressure mouthful valve 123, treats that the release of the pressure in secondary stress holding vessel 02 is finished, and opens feeding port valve 122, solid particle
Entered in secondary stress holding vessel 02 through feeding port valve 122 by auger feeding machine；After solid particle conveying is finished, feeding is closed
Mouthful valve 122 and bleed off pressure mouthful valve 123；Injection pressure mouthful valve 121 is opened, base fluid passes through liquid carbon dioxide tank car or LPG
Tank car enters in secondary stress holding vessel 02 through injection pressure mouthful valve 121；After base fluid injection is finished, injection pressure mouthful valve 121 is closed；Open
Reservoir valve 03, solid particle and base fluid enter main pressure through reservoir valve 03 by secondary stress holding vessel 02 under gravity
After power holding vessel 01, reservoir valve 03 is closed, solid particle and base fluid are mixed to form fracturing fluid in principal pressure holding vessel 01,
Fracturing fluid is delivered to pumping system through fracturing fluid outlet valve 111 by screw conveyer by principal pressure holding vessel 01.
The embodiment of the present invention also provides a kind of sand blender, including：Pressure break mixing device according to any of the above-described；
During practical application, the sand blender can be that fracturing blender truck or mulling are prized.Due to pressure break mixing device provided in an embodiment of the present invention
Can in use realize continuously adding sand, to meet Large Scale and Continuous construction operation, therefore be provided with the pressure break mixing device
Sand blender (for example：Fracturing blender truck or mulling are prized) can also realize continuously adding sand in use, to meet Large Scale and Continuous
Construction operation.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. a kind of pressure break mixing device, it is characterised in that including：Pressure storage (10), the pressure storage (10) is divided into
Principal pressure storage room (11) and secondary stress storage room (12), the principal pressure storage room (11) and the secondary stress storage room (12)
Between by storage room valve (13) connect；The secondary stress storage room (12) is provided with injection pressure mouthful valve (121) and feeding port
Valve (122), the principal pressure storage room (11) is provided with fracturing fluid outlet valve (111).
2. pressure break mixing device according to claim 1, it is characterised in that the secondary stress storage room (12) is additionally provided with
Bleed off pressure a mouthful valve (123).
3. a kind of pressure break mixing device, it is characterised in that including：Principal pressure holding vessel (01) and secondary stress holding vessel (02), institute
State and connected by reservoir valve (03) between principal pressure holding vessel (01) and the secondary stress holding vessel (02)；The secondary stress
Holding vessel (02) is provided with injection pressure mouthful valve (121) and feeding port valve (122), and the principal pressure holding vessel (01) is provided with pressure
Split liquid outlet valve (111).
4. pressure break mixing device according to claim 3, it is characterised in that the secondary stress holding vessel (02) is additionally provided with
Bleed off pressure a mouthful valve (123).
5. pressure break mixing device according to claim 4, it is characterised in that feeding port valve (122) place is communicated with
Feeder (04).
6. pressure break mixing device according to claim 4, it is characterised in that fracturing fluid outlet valve (111) place connects
It is connected with sand deliverer (05).
7. pressure break mixing device according to claim 1, it is characterised in that the principal pressure holding vessel (01) at least corresponds to
It is provided with two secondary stress holding vessels (02).
8. a kind of fracturing process, it is characterised in that comprise the following steps：
Injection solid particle and the base fluid in secondary stress holding vessel (02) or secondary stress storage room (12), and it is forced into preset value；
The solid particle and base fluid pressurize enter principal pressure holding vessel (01) or principal pressure storage room (11), are mixed to form pressure break
Liquid is simultaneously externally pumped；
While the principal pressure holding vessel (01) or principal pressure storage room (11) externally pumping fracturing fluid, in the secondary stress
Continue to inject solid particle and base fluid in holding vessel (02) or secondary stress storage room (12), preset value is forced into, for described
Fracturing fluid in principal pressure holding vessel (01) or principal pressure storage room (11) is supplemented.
9. a kind of sand blender, it is characterised in that including：Pressure break mulling dress according to any one of claim 1-7
Put.
10. sand blender according to claim 9, it is characterised in that the sand blender is that fracturing blender truck or mulling are prized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710083929.9A CN106761648A (en) | 2017-02-16 | 2017-02-16 | Pressure break mixing device, fracturing process, sand blender |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710083929.9A CN106761648A (en) | 2017-02-16 | 2017-02-16 | Pressure break mixing device, fracturing process, sand blender |
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| Publication Number | Publication Date |
|---|---|
| CN106761648A true CN106761648A (en) | 2017-05-31 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710083929.9A Pending CN106761648A (en) | 2017-02-16 | 2017-02-16 | Pressure break mixing device, fracturing process, sand blender |
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| CN113882843A (en) * | 2021-09-24 | 2022-01-04 | 盐城旭东机械有限公司 | Automatic hydraulic control fracturing manifold |
| CN114658405A (en) * | 2022-04-07 | 2022-06-24 | 烟台杰瑞石油装备技术有限公司 | Fracturing equipment |
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