CN208350745U - Imitative experimental appliance is stitched by a kind of transparent parallel crack device and Zan Biezao branch - Google Patents
Imitative experimental appliance is stitched by a kind of transparent parallel crack device and Zan Biezao branch Download PDFInfo
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- CN208350745U CN208350745U CN201820782881.0U CN201820782881U CN208350745U CN 208350745 U CN208350745 U CN 208350745U CN 201820782881 U CN201820782881 U CN 201820782881U CN 208350745 U CN208350745 U CN 208350745U
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Abstract
The utility model discloses a kind of transparent parallel crack device and Zan Biezao branch seam imitative experimental appliance, transparent parallel crack device is plate structure, it is internally provided with groove, both ends offer line inlet interface and pipeline outlet interface respectively, and line inlet interface and pipeline outlet interface are connected to the both ends of groove respectively；Transparent parallel crack device is divided into three sections, and three sections are respectively leading portion, interlude and back segment, and line inlet interface is opened at leading portion, and pipeline outlet interface is opened at back segment；For interlude for filling diverting agent, the groove at interlude is equipped with the position limiting structure for limiting to diverting agent；Interlude is with that can seal the detachable body being detachably connected, and after detachable body is removed from interlude, the lower half portion of the groove at interlude can expose, and detachable body is tightly connected between leading portion and back segment respectively.The utility model can the temporary stifled effect visually to diverting agent in fracturing process analyze and research.
Description
Technical field
The utility model relates to oil-gas field development field, in particular to a kind of transparent parallel crack device and temporarily suppressing is made point
Branch stitches imitative experimental appliance.
Background technique
Conventional gas and oil resource can no longer meet social demand, exploitation dynamics of the oil field for unconventional reservoir in recent years
Increasingly deepen.Hydraulic fracturing technology is the exploitation very effective means of unconventional reservoir petroleum resources all the time, however to
The sand packed fracture that high flow conductivity is formed in reservoir, improves oil gas well yield, must just extrude the more of complexity in the earth formation
Grade seam net.The seam net formed in the major defect fracturing process of conventional hydraulic fracturing technique at present is single, in the storage of rich accumulation of oil and gas
It is often difficult to extrude multistage complicated seam net in layer, and transverse and longitudinal extension is less, or even the oil field fracturing having is constructed in reservoir
It is only capable of pressing off a crack, to reservoir reconstruction almost without effect, results in oil gas in this way and be difficult to production of migrating, after pressing crack construction
Yield have no and significantly improve.In order to improve pressing crack construction efficiency, multistage complicated seam net is formed in the earth formation, can use temporarily stifled
Old cracking initiation is temporarily blocked up in agent, so that fracturing fluid pressure break direction be forced to turn to, finally extrudes multistage complicated seam net.However mesh
Preceding there is no experimental provisions to be used to simulate and analyze the temporary stifled process of diverting agent in the earth formation, thus greatly limits scientific research people
Member researchs and analyses temporary stifled fracturing technique, constrains the innovation of fracturing technique.
Utility model content
In order to overcome the defects of the prior art described above, the purpose of this utility model is to provide a kind of transparent parallel cracks
Imitative experimental appliance is stitched by device and Zan Biezao branch, and the utility model can visually block up the temporary of diverting agent in fracturing process
Effect is analyzed and researched.
In order to achieve the above object, the technical solution of the utility model are as follows:
A kind of transparent parallel crack device, transparent parallel crack device be plate structure, inside along its length
It is arranged fluted, the both ends of transparent parallel crack device offer line inlet interface and pipeline outlet interface, pipeline respectively
Ingress interface and pipeline outlet interface are connected to the both ends of groove respectively；
Transparent parallel crack device is divided into three sections, and three sections are respectively leading portion, interlude and back segment, and line inlet interface is opened
At leading portion, pipeline outlet interface is opened at back segment；
For interlude for filling diverting agent, the groove at interlude is equipped with the limit knot for limiting to diverting agent
Structure；Interlude has the detachable body that can be detachably connected, and detachable body is connect with interlude ontology intermediate seal, when removable
It unloads after body removes from interlude, the lower half portion of the groove at interlude can expose, between detachable body and leading portion
And it is tightly connected between back segment.
Face offers the first shallow slot and the second shallow slot, the first shallow slot 6-2- respectively in the upper and lower surfaces of interlude
The width of 1 width and the second shallow slot is of same size with groove, and the first shallow slot and the second shallow slot are used to limit diverting agent.
The depth of first shallow slot and the second shallow slot is respectively 0.5cm~1cm and 1.5cm~2cm.
Detachable body is detachably connected by bolt, and outer rim of the interlude in recess width direction two sides is respectively set several
Bolt.
It is connected by hierarchic structure between detachable body and leading portion and between detachable body and back segment, hierarchic structure
Gasket is equipped at ladder.
The material of transparent parallel crack device is transparent organic glass.
Transparent parallel crack device is rectangle tabular structure, and the length of transparent parallel crack device is 3~6m, wide
Degree is 0.5~1m, and the height of groove is 1.5~2cm, and the width of groove is 0.3~0.8m, and the length of interlude is 1~2m,
The length of leading portion is 0.5~1m, and the length of back segment is 1.5~3m.
A kind of Zan Biezao branch seam imitative experimental appliance, including flow container, displacement pump, valve, pressure gauge, data collection task
Platform and above-mentioned transparent parallel crack device, flow container are connect by pipeline with the entrance that displacement pumps, and displacement pump discharge passes through pipeline
It is connect with the line inlet interface of transparent parallel crack device, the pipeline outlet interface of transparent parallel crack device is connected with
Pipeline；Displacement pumps to the pipeline between line inlet interface and is successively arranged the first valve and first pressure gauge, pipeline outlet interface
Second pressure gauge and the second valve are successively arranged on the pipeline of connection；
Displacement pump, first pressure gauge and second pressure gauge are connect with data collection task platform.
It further include waste liquid pool, the pipeline of pipeline outlet interface connection is connected to waste liquid pool.
The beneficial effects of the utility model are:
For the interlude of the transparent parallel crack device of the utility model for filling diverting agent, interlude has can be close
Seal the detachable body being detachably connected, after detachable body is removed from interlude, the lower half of the groove at interlude
Dividing can expose, therefore, convenient for the laying of diverting agent；The working principle of the transparent parallel crack device of the utility model is:
Diverting agent is laid in the device interlude groove of transparent parallel crack with the truth in simulated formation crack, by transparent
Being plugged in for parallel plank split device outlet is no, can control the position of diverting agent in a groove, can analyze diverting agent recessed
The temporary stifled situation of slot different location, with the temporary stifled situation of simulation fracture different location；The energy of transparent parallel crack device leading portion
Enough buffer the turbulence effect of fracturing fluid.When from line inlet interface to the groove of transparent parallel crack device inject fracturing fluid
When, if diverting agent plays the role of temporarily blocking up, the pressure of transparent parallel crack device portal side can over time gradually
Increase, in this process, can visually observe the variation that diverting agent occurs in the device of transparent parallel crack.
The utility model Zan Biezao branch seam imitative experimental appliance by displacement pump can by the fracturing fluid in flow container from
In the groove of the entrance injection transparent parallel crack device of transparent parallel crack device, stream can be controlled by the first valve
Amount is able to detect the pressure that diverting agent temporarily blocks up front end fracturing fluid by first pressure gauge, is able to detect temporarily by second pressure gauge
Blocking agent temporarily blocks up the pressure of rear end fracturing fluid, can control diverting agent in the device groove of transparent parallel crack by the second valve
Position；When displacement, which is pumped, injects fracturing fluid to the entrance of transparent parallel crack device, if diverting agent plays the role of temporarily blocking up,
The pressure value of first pressure gauge can be gradually increased over time, in this process, pass through data collection task platform
The flow and pressure, the pressure value of first pressure gauge and the pressure value of second pressure gauge of displacement pump are recorded, while observing diverting agent
The variation occurred in the device of crack is analyzed finally by the experimental data recorded to data collection task platform, is obtained saturating
The pump-in pressure of the pressure of bright parallel plank split device entrance, the displacement flow of displacement pump and displacement pump changes with time
Curve, further according to curve judgment experiment analog result；Therefore the Zan Biezao branch seam imitative experimental appliance of the utility model solves
The bottleneck problem that current temporarily stifled fracturing technique faces, provides true and reliable experiment for temporary stifled Fracturing Technique Study and simulates and fill
It sets.
Detailed description of the invention
Fig. 1 is the utility model Zan Biezao branch slit die draft experiment schematic device；
Fig. 2 is the longitudinal sectional drawing of the utility model transparent parallel crack device；
Fig. 3 is the utility model transparent parallel crack device and lateral (interlude) sectional view；
Fig. 4 is the portion the A enlarged diagram in Fig. 2；
Fig. 5 is the top view of the utility model transparent parallel crack device.
In figure, 1- flow container, 2- pipeline, 3- canal is for pump, the first valve of 4-, the second valve of 4-1-, 5- first pressure gauge, 5-1-
Second pressure gauge, 6- transparent parallel crack device, 6-1- leading portion, 6-2- interlude, the first shallow slot of 6-2-1-, 6-2-2- second
Shallow slot, 6-2-3- detachable body, 6-3- back segment, 6-4- groove, 6-5- line inlet interface, 6-6- pipeline outlet interface, 7- are useless
Liquid pool, 8- bolt, 9- data collection task platform, 10- gasket.
Specific embodiment
It is described in detail below with reference to the experimental simulation device schematic diagram of the utility model.
As shown in Figures 2 to 5, the transparent parallel crack device 6 of the utility model be plate structure, inside along length
Fluted 6-4 is arranged in direction, and the both ends of transparent parallel crack device 6 offer line inlet interface 6-5 respectively and pipeline goes out
Mouth interface 6-6, line inlet interface 6-5 and pipeline outlet interface 6-6 are connected to the both ends of groove 6-4 respectively；
It is three sections that transparent parallel crack device 6, which divides, and three sections are respectively leading portion 6-1, interlude 6-2 and back segment 6-3, pipeline
Ingress interface 6-5 is opened at leading portion 6-1, and pipeline outlet interface 6-6 is opened at back segment 6-3；
Interlude 6-2 is equipped at the groove 6-4 at interlude 6-2 for limiting diverting agent for filling diverting agent
The position limiting structure of position；Interlude 6-2 is with that can seal the detachable body 6-2-3 being detachably connected, such as Fig. 2, Fig. 3 and Fig. 5 institute
Show, detachable body 6-2-3 is detachably connected by bolt 8, and outer rim of the interlude 6-2 in groove 6-4 width direction two sides is distinguished
If bolt stem 8 is arranged, after detachable body 6-2-3 is removed from interlude 6-2, under the groove 6-4 at interlude 6-2
Half part can be exposed, and detachable body 6-2-3 is tightly connected between leading portion 6-1 and back segment 6-3 respectively.
As shown in Figure 2 and Figure 4, referring to Fig. 5, face offers first respectively in the upper and lower surfaces of interlude 6-2
The width of shallow slot 6-2-1 and the second shallow slot 6-2-2, the width of the first shallow slot 6-2-1 and the second shallow slot 6-2-2 with groove 6-4
(such as Fig. 5) of same size, the first shallow slot 6-2-1 and the second shallow slot 6-2-2 are used to limit diverting agent.First shallow slot 6-2-1
Depth with the second shallow slot 6-2-2 is respectively 0.5cm~1cm and 1.5cm~2cm.
As shown in figure 4, between detachable body 6-2-3 and leading portion 6-1 and between detachable body 6-2-3 and back segment 6-3
Connected by hierarchic structure, at the ladder of hierarchic structure be equipped with gasket 10, between detachable body 6-2-3 and leading portion 6-1 and
It is tightly connected by hierarchic structure and gasket 10 between back segment 6-3.
As shown in Figure 1, imitative experimental appliance is stitched by the Zan Biezao branch of the utility model, including flow container 1, displacement pump 3, are used for
Valve, pressure gauge, waste liquid pool 7, data collection task platform 9 and the transparent parallel crack device 6 of flow are controlled, flow container 1 passes through
Pipeline 2 is connect with the entrance of displacement pump 3, and 3 outlet of displacement pump passes through the line inlet of pipeline 2 and transparent parallel crack device 6
Interface 6-5 connection, the pipeline outlet interface 6-6 of transparent parallel crack device 6 are connected with pipeline 2, pipeline outlet interface 6-6
The pipeline 2 of connection is connected to waste liquid pool 7；Displacement pump 3 to the pipeline 2 between line inlet interface 6-5 is successively arranged the first valve
4 and first pressure gauge 5, second pressure gauge 5-1 and the second valve 4- are successively arranged on the pipeline 2 of pipeline outlet interface 6-6 connection
1；
Displacement pump 3, first pressure gauge 5 and second pressure gauge 5-1 are connect with data collection task platform 9.
In the utility model, the material of transparent parallel crack device 6 is transparent organic glass, transparent parallel crack dress
6 are set as rectangle tabular structure, (the first, the second) pressure gauge is electronic pressure gage, and displacement pump 3 can guarantee regime flow
It is pumped into fluid, and the pump-in pressure of device 3 can be adjusted in real time, the length of transparent parallel crack device 6 is 3~6m, width
For 0.5~1m, the height of groove 6-4 is 1.5~2cm, and the width of groove 6-4 is 0.3~0.8m, and the length of interlude 6-2 is
The length of 1~2m, leading portion 6-1 are 0.5~1m, and the length of back segment 6-3 is 1.5~3m.
As shown in Figure 1, stitching imitative experimental appliance in conjunction with Fig. 2 to Fig. 5 by the Zan Biezao branch of the utility model and carrying out temporarily
The process of Bie Zao branch slit die draft experiment the following steps are included:
Step 1, detachable body 6-2-3 is removed, upper diverting agent is uniformly laid into the groove 6-4 at interlude 6-2, so
Detachable body 6-2-3 is installed afterwards；
Step 2, setting displacement pumps 3 flow and pump-in pressure parameter, wherein flow set 0-2m3/ min is pumped into pressure
Power is set as 0-100MPa, opens displacement pump 3, displacement pump 3 is by the fracturing fluid in flow container 1, and fracturing fluid is through pipeline 2 and line inlet
Interface 6-5 enters transparent parallel crack device 6, and the temporary stifled situation to simulation diverting agent in crack middle section then opens first
Valve 4 and the second valve 4-1；The first valve 4 is opened to temporary stifled situation of the simulation diverting agent in crack end, closes second
Valve 4-1, and the setting of such situation initial flow is no more than 0.3m3/ min, displacement pressure are no more than 10MPa；
If diverting agent plays the role of temporarily blocking up, the pressure value of first pressure gauge 5 can be gradually increased over time,
In this process, by data collection task platform 9 record displacement pump 3 flow and pressure, the pressure value of first pressure gauge 5 and
The pressure value of second pressure gauge 5-1, while the variation that diverting agent occurs in the device of crack is observed, it is acquired finally by data
The experimental data that workbench 9 records is analyzed, and obtains the pressure of 6 entrance of transparent parallel crack device, displacement pumps 3
The pump-in pressure versus time curve of displacement flow and displacement pump 3, further according to curve judgment experiment analog result.
The utility model will tighten the bolt 8 on transparent parallel crack device 6 before the experiments, make interlude 6-2 with
And between interlude and leading portion 6-1 between interlude 6-2 and back segment 6-3 equal not leak fluids, connect and check pipeline and pressure
Whether power table is normal, then can just open displacement pump and be tested.
The slit die draft experiment side of Zan Biezao branch of the utility model can effectively simulate diverting agent and temporarily block up in crack
Journey can analyze and research to the temporary stifled effect of diverting agent in fracturing process.And whole process visualizes, temporary convenient for observation
The variation of blocking agent, convenient for Oil Field application before carry out experiment simulation obtain it is true and reliable as a result, for field technician
With reference to.
Embodiment
It is removed first detachable referring to figs. 1 to Fig. 5 in order to simulate biodegradable fiber in the temporary stifled situation of crack interlude
Body 6-2-3 uniformly lays the biodegradable fiber that upper diameter is 20 μm inside the crack groove of interlude 6-2, so will be removable
It unloads body 6-2-3 to be installed in place, makes to merge between detachable body 6-2-3 and leading portion 6-1 and back segment 6-2 securely.It will using pipeline 2
Flow container 1, displacement pump 3, pressure gauge 5, parallel plank split device 6 and waste liquid pool 7 connect.Displacement velocity is set as 0.5m3/
Min opens the first valve 4 and the second valve 4-1, opens displacement pump 3, check pipeline whether leak with pressure gauge whether plussage
Journey, check transparent parallel crack device 6 whether leak fluid.If finding the problem, it should close displacement pump 3 in time, be examined
Look into maintenance.
If entire checking process is not found the problem, the flow that displacement pump (3) is arranged is 0.85m3/ min, pump-in pressure
Parameter is 5MPa, carries out simulated experiment using clear water displacement.
In experimentation, if discovery pressure gauge parametric approximation maximum range, should close pump in time, pressure gauge is avoided to damage.
In experimentation, the record discovery of data collection task platform 9 gage pressure value after displacement 2min increases step by step
And when reaching 10.2MPa, reach stable state, pressure floats up and down very little, and pressure reduces step by step after ten minutes.?
Agglomerated together when starting to the observation discovery biodegradable fiber of interlude detachable body during this, water flow passes through speed
Relatively slow, biodegradable fiber is gradually broken up flow rate of water flow and starts to increase step by step over time.
The experimental results showed that 20 μm of biodegradable fibers can form the temporary stifled pressure of up to 10.2MPa in crack interlude
Power, and steady pressure 10min, are fully achieved the condition of Zan Biezao branch seam in the earth formation, and experimental result is that scene is actually answered
It is provided a strong basis with biodegradable fiber.
Claims (9)
1. a kind of transparent parallel crack device, which is characterized in that transparent parallel crack device (6) is plate structure, in
Portion is arranged fluted (6-4) along its length, and the both ends of transparent parallel crack device (6) offer line inlet interface respectively
(6-5) and pipeline outlet interface (6-6), line inlet interface (6-5) and pipeline outlet interface (6-6) respectively with groove (6-4)
Both ends connection；
Transparent parallel crack device (6) is divided into three sections, and three sections are respectively leading portion (6-1), interlude (6-2) and back segment (6-3),
Line inlet interface (6-5) is opened at leading portion (6-1), and pipeline outlet interface (6-6) is opened at back segment (6-3)；
Interlude (6-2) is equipped at the groove (6-4) at interlude (6-2) for diverting agent for filling diverting agent
The position limiting structure of limit；Interlude (6-2) has the detachable body (6-2-3) that can be detachably connected, detachable body (6-2-3)
It is connect with interlude (6-2) ontology intermediate seal, after detachable body (6-2-3) is removed at interlude (6-2), in centre
The lower half portion of groove (6-4) at section (6-2) can expose, between detachable body (6-2-3) and leading portion (6-1) and with it is rear
It is tightly connected between section (6-3).
2. a kind of transparent parallel crack device according to claim 1, which is characterized in that the upper table of interlude (6-2)
Face offers the first shallow slot (6-2-1) and the second shallow slot (6-2-2) respectively on face and lower surface, the first shallow slot (6-2-1)
The width of width and the second shallow slot (6-2-2) is of same size with groove (6-4), the first shallow slot (6-2-1) and the second shallow slot
(6-2-2) is used to limit diverting agent.
3. a kind of transparent parallel crack device according to claim 2, which is characterized in that the first shallow slot (6-2-1) and
The depth of second shallow slot (6-2-2) is respectively 0.5cm~1cm and 1.5cm~2cm.
4. a kind of transparent parallel crack device according to claim 1, which is characterized in that detachable body (6-2-3) is logical
It crosses bolt (8) to be detachably connected, interlude (6-2) is in groove (6-4) if bolt stem is respectively set in the outer rim of width direction two sides
(8)。
5. a kind of transparent parallel crack device according to claim 1, which is characterized in that detachable body (6-2-3) with
It is connect by hierarchic structure between leading portion (6-1) and between detachable body (6-2-3) and back segment (6-3), hierarchic structure
Gasket (10) are equipped at ladder.
6. a kind of transparent parallel crack device according to claim 1, which is characterized in that transparent parallel crack device
(6) material is transparent organic glass.
7. a kind of transparent parallel crack device described in -6 any one according to claim 1, which is characterized in that transparent parallel
Plank split device (6) is rectangle tabular structure, and the length of transparent parallel crack device (6) is 3~6m, width is 0.5~
1m, the height of groove (6-4) are 1.5~2cm, and the width of groove (6-4) is 0.3~0.8m, and the length of interlude (6-2) is 1
~2m, the length of leading portion (6-1) are 0.5~1m, and the length of back segment (6-3) is 1.5~3m.
8. imitative experimental appliance is stitched by a kind of Zan Biezao branch, which is characterized in that pump (3), valve, pressure including flow container (1), displacement
Transparent parallel crack device (6) described in table, data collection task platform (9) and claim 1-7 any one, flow container (1)
It is connect by pipeline (2) with the entrance of displacement pump (3), displacement pumps (3) outlet and passes through pipeline (2) and transparent parallel crack device
(6) line inlet interface (6-5) connection, the pipeline outlet interface (6-6) of transparent parallel crack device (6) are connected with pipeline
(2)；The first valve (4) and the first pressure are successively arranged on displacement pump (3) to the pipeline (2) between line inlet interface (6-5)
Power table (5), pipeline outlet interface (6-6) connection pipeline (2) on be successively arranged second pressure gauge (5-1) and the second valve (4-
1)；
Displacement pump (3), first pressure gauge (5) and second pressure gauge (5-1) are connect with data collection task platform (9).
9. imitative experimental appliance is stitched by a kind of Zan Biezao branch according to claim 8, which is characterized in that further include waste liquid pool
(7), the pipeline (2) of pipeline outlet interface (6-6) connection is connected to waste liquid pool (7).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519467A (en) * | 2018-05-24 | 2018-09-11 | 西安石油大学 | A kind of transparent parallel crack device, Zan Biezao branches seam analogue experiment installation and simulation experiment method |
| CN110485999A (en) * | 2019-06-27 | 2019-11-22 | 西南石油大学 | Simulation fracture module, slit formation drilling fluid leak stopping test device |
-
2018
- 2018-05-24 CN CN201820782881.0U patent/CN208350745U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519467A (en) * | 2018-05-24 | 2018-09-11 | 西安石油大学 | A kind of transparent parallel crack device, Zan Biezao branches seam analogue experiment installation and simulation experiment method |
| CN108519467B (en) * | 2018-05-24 | 2023-11-03 | 西安石油大学 | Transparent parallel plate crack device, temporary holding manufactured branch crack simulation experiment device and simulation experiment method |
| CN110485999A (en) * | 2019-06-27 | 2019-11-22 | 西南石油大学 | Simulation fracture module, slit formation drilling fluid leak stopping test device |
| CN110485999B (en) * | 2019-06-27 | 2022-07-22 | 西南石油大学 | Simulation crack module, crack type drilling fluid leaking stoppage testing arrangement |
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