CN206707688U - Fracture support agent lays analogue experiment installation - Google Patents

Abstract

The utility model provides a kind of fracture support agent and lays analogue experiment installation, including mulling slurry dispensing assembly, seam screen component and detection components；Mulling slurry dispensing assembly includes proppant holding vessel, fracturing fluid holding vessel, injection pump and mixing sand tank；Seam screen component includes the simulation wellbore hole, hollow box body and the multiple and contour seam net chunk of hollow box body placed vertically, detection components include pressure-detecting device and flow detector, pressure-detecting device is arranged on the connectivity part that main seam stitches with branch, the pressure value for the connectivity part stitched for detecting main seam with branch, flow detector is arranged on the porch of main seam, for detecting the flow value for the mulling slurry for entering main seam.Therefore, fracture support agent provided by the utility model lays analogue experiment installation and can ensure that model experiment is consistent with true fracture support agent laying mechanism.

Description

Fracture support agent lays analogue experiment installation

Technical field

It the utility model is related to and probe into hydraulic fracturing process proppant laying rule technical field, more particularly to a kind of crack Proppant lays analogue experiment installation.

Background technology

During oil gas well mining, pressing crack construction to produce many intrinsic fractures in near-wellbore region, wherein master is split The connection of seam both sides has a plurality of branch fractures, forms complicated seam web frame.Adopted to ensure that oil gas smoothly exports completion by crack Collection is, it is necessary to lay proppant into crack.Proppant is the natural sand with certain particle size and grading or artificial high strength ceramics Grain, it, which can support crack, prevents formation closure, and forms higher flow conductivity, and the oil gas allowed in stratum preferably passes through Crack reaches ground, so that oil gas field obtains higher yield.Therefore the shadow that fracture pattern lays rule to proppant is probed into Sound is significant in oil-gas mining field.

The Chinese invention patent of Application No. 201410825216.1 and 201510105692.0 is more conventional at present Two kinds of research complex fractures lay the method and device of rule to proppant.It is mixed proppant and fracturing fluid using injection pump Close in the mulling injection complex fracture device formed, the complex fracture device is in the true shale of manual simulation prepared by crack , wherein crack is straight passage, and it includes main seam and stitched from main seam connection and with main slit into the branch of different angles, and And the wall of passage offers multiple holes, thus fracturing fluid hole can be flowed into complex fracture device internal cavities, therefore The device can probe into the influence that crack angle, fracture width and fracturing fluid leak etc. lay result to final proppant.

But it is above-mentioned in the prior art, do not account for interference between crack tortuosity and seam and result laid to proppant Influence, therefore can not truly reflect the laying situation of proppant during actual oil-gas mining, there is larger limitation.

Utility model content

The utility model, which provides a kind of fracture support agent laying analogue experiment installation, can simulate the complicated seam net in true crack Disturbed between form and seam, and width, crack tortuosity, the row of crack inner wall roughness and injection pump between seam can be adjusted Amount, studies the influence that above-mentioned factor lays result to proppant in crack, it is ensured that simulated experiment and true fracture support agent Laying mechanism is consistent, improves applicability and accuracy that fracture support agent lays simulated experiment.

The utility model provides a kind of fracture support agent and lays analogue experiment installation, and it is real to lay simulation for fracture support agent Test, including mulling slurry dispensing assembly, seam screen component and detection components.

Mulling slurry dispensing assembly includes proppant holding vessel, fracturing fluid holding vessel, injection pump and mixing sand tank, proppant storage The outlet for depositing tank and fracturing fluid holding vessel connects with the entrance of mixing sand tank, for by the proppant and pressure in proppant holding vessel Split the fracturing fluid in liquid holding vessel and be delivered in mixing sand tank and be mixed to form mulling slurry.

The outlet of mixing sand tank is connected by injection pump with seam screen component, for mulling slurry to be injected in seam screen component.

Seam screen component includes the simulation wellbore hole, hollow box body and the multiple and contour seam net group of hollow box body placed vertically Block, the slurry outlet for flowing out mulling slurry is offered on simulation wellbore hole, seam net chunk is each attached to inside hollow box body, stitches net Chunk is adjacent to hollow box body inwall, and has interval between adjacent seam net chunk, and mulling slurry can be poured into be formed Crack, crack include a main seam connected with slurry outlet and at least one and stitched with the main branch connected of stitching.

Detection components include pressure-detecting device and flow detector, and pressure-detecting device is arranged on main seam and stitched with branch Connectivity part, for detect it is main seam with branch seam connectivity part pressure value, flow detector be arranged on main seam porch, For detecting the flow value for the mulling slurry for entering main seam.

Fracture support agent provided by the utility model lays analogue experiment installation, by the multiple seam net chunks for stitching screen component Simulate the complicated seam net of various forms and disturbed between stitching；It is wide between seam so as to adjust by adjusting each seam the distance between net chunk Degree；By simulating true crack tortuosity with seam net chunk of different shapes；By the outside that crack is contacted in seam net chunk Wall pastes coarse paster and simulates true crack inner wall roughness, and by adjusting the discharge capacity of injection pump, so as to study it to branch Support agent lays the influence of result in crack, it is ensured that simulated experiment is consistent with true fracture support agent laying mechanism, improves crack Proppant lays the applicability and accuracy of simulated experiment.

Brief description of the drawings

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the required accompanying drawing used does one and simply introduced in description of the prior art, it should be apparent that, drawings in the following description are Some embodiments of the utility model, for those of ordinary skill in the art, do not paying the premise of creative labor Under, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is that the fracture support agent that the utility model embodiment one provides lays analogue experiment installation structural representation；

Fig. 2 is the knot for the seam screen component that the fracture support agent that the utility model embodiment one provides lays analogue experiment installation Structure schematic diagram；

Fig. 3 is Fig. 2 top view；

Fig. 4 is to disturb movement between the fracture support agent that the utility model embodiment one provides lays the seam of analogue experiment installation Preceding cube component inside structural representation；

Fig. 5 is to disturb movement between the fracture support agent that the utility model embodiment one provides lays the seam of analogue experiment installation Cube component inside structural representation afterwards；

Fig. 6 is to disturb movement between the fracture support agent that the utility model embodiment one provides lays the seam of analogue experiment installation Cube element structure schematic diagram afterwards；

Fig. 7 is that the fracture support agent for being configured with Liquid and gas damper that the utility model embodiment one provides lays simulated experiment The structural representation of device；

Fig. 8 is the flow chart that the fracture support agent that the utility model embodiment two provides lays analogue experiment method.

Description of reference numerals：

10- mulling slurry dispensing assemblies；20- stitches screen component；30- detection components；

40- Liquid and gas dampers；11- proppant holding vessels；12- fracturing fluid holding vessels；

13- injection pumps；14- mixing sand tanks；15- flow control valves；

21- simulation wellbore holes；22- hollow box bodies；23- stitches net chunk；

The main seams of 24-；25- branches stitch；211- slurry outlets；

231- vertical masonry joint component groups；232- R-joining component groups；233- irregular slit component groups；

2311- cube components；2321- straight triangular prism components；2331- components in irregular shape；

2311a- the first side walls；2311b- second sidewalls；2311c- traces.

Embodiment

It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Based on the implementation in the utility model Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is belonged to The scope of the utility model protection.

Fig. 1 is that the fracture support agent that the utility model embodiment one provides lays analogue experiment installation structural representation, Fig. 2 It is the structural representation that the fracture support agent that the utility model embodiment one provides lays the seam screen component of analogue experiment installation, schemes 3 be Fig. 2 top view.

As shown in Figure 1 to Figure 3, the utility model embodiment one provides a kind of fracture support agent and lays analogue experiment installation, Simulated experiment, including mulling slurry dispensing assembly 10, seam screen component 20 and detection components 30 are laid for fracture support agent.

Mulling slurry dispensing assembly 10 includes proppant holding vessel 11, fracturing fluid holding vessel 12, injection pump 13 and mixing sand tank 14, the entrance of the outlet of proppant holding vessel 11 and fracturing fluid holding vessel 12 with mixing sand tank 14 connects, for proppant to be stored up Deposit the fracturing fluid in the proppant in tank 11 and fracturing fluid holding vessel 12 and be delivered in mixing sand tank 14 and be mixed to form mulling slurry.

It should be noted that during proppant laying, inject in crack, prop up simultaneously after proppant and fracturing fluid mixing Support agent is to be carried by fracturing fluid to each corner in crack, and then proppant supporting crack makes its keep open configuration, so as to ensure Oil gas smoothly can be endlessly flowed out in the gap between proppant and proppant.Wherein between proppant and fracturing fluid Proportioning can influence the laying effect of proppant and the support effect in crack.Therefore, different quality can be measured according to experiment demand Proppant and fracturing fluid, be respectively implanted proppant holding vessel 11 and fracturing fluid holding vessel 12, proppant holding vessel 11 and pressure break Entrance of the outlet of liquid holding vessel 12 with mixing sand tank 14 connects, and proppant and fracturing fluid flow into mixing sand tank 14 simultaneously, in mulling Mixing is stirred in tank 14, forms mulling slurry.Connect in proppant holding vessel 11 and fracturing fluid holding vessel 12 with mixing sand tank 14 The valve body for adjusting flow velocity also can be set on logical pipeline, regulation respectively is prevented into the proppant and fracturing fluid of mixing sand tank 14 Fluid stopping speed is excessive, causes to mix the problem of uneven.

The outlet of mixing sand tank 14 is connected by injection pump 13 with seam screen component 20, for mulling slurry to be injected into seam screen component In 20.

It should be noted that the mulling slurry in mixing sand tank 14 is to be injected by injection pump 13 in seam screen component 20, note The kinetic energy of flowing can be provided for mulling slurry by entering pump 13, ensure that mortar physical efficiency is circulated to each corner in crack.

Seam screen component 20 includes simulation wellbore hole 21, the hollow box body 22 and multiple contour with hollow box body 22 placed vertically Seam net chunk 23, the slurry outlet 211 for flowing out mulling slurry is offered on simulation wellbore hole 21, seam net chunk 23 is each attached to Inside hollow box body 22, seam net chunk 23 is adjacent to the inwall of hollow box body 22, and between having between adjacent seam net chunk 23 Every, can pour into the crack of mulling slurry to be formed, crack include a main seam 24 and at least one connected with slurry outlet 211 and Branch's seam 25 of the main connection of seam 24.

It is to be noted its mulling slurry by oil and gas gathering pit shaft it should be noted that during actual support agent laying Enter, then flowed into by the duct on oil and gas gathering pit shaft in the man-made fracture and intrinsic fracture on stratum.The utility model is implemented The fracture support agent that example one provides lays analogue experiment installation according to practical condition, sets in screen component 20 is stitched and puts vertically The simulation wellbore hole 21 put, for simulating actual oil and gas gathering pit shaft, offered on simulation wellbore hole 21 for flowing out mortar The slurry outlet 211 of body.It is pointed out that as shown in Fig. 2 the slurry outlet 211 on simulation wellbore hole 21 has multiple, it is opened in respectively The position of the different depth of simulation wellbore hole 21, the depth for studying slurry outlet 211 lay the influence of result to proppant.

And stitch and hollow box body 22 and the multiple and contour seam net chunk 23 of hollow box body 22 are additionally provided with screen component 20, seam Net chunk 23 is fixed on the inside of hollow box body 22.Fixed mode can have a variety of, but optimal choose dismountable connection side Formula, it is ensured that seam screen component 20 repeatedly uses, such as pastes connection or bolt connection.Wherein using bolt connection as Example, open up the screw that is mutually matched in the seam side wall of net chunk 23 and the side wall of hollow box body 22 respectively, after net chunk will be stitched by bolt 23 are fixed on the side wall of hollow box body 22.Seam net chunk 23 is adjacent to the inwall of hollow box body 22, and adjacent seam net chunk 23 it Between there is interval, the crack of mulling slurry can be poured into be formed, crack includes a main seam 24 connected with slurry outlet 211 and extremely The few one branch's seam 25 connected with main seam 24.It is pointed out that as shown in figure 3, in the utility model embodiment one only Comprising a main seam 24 and a plurality of branch seam 25, but in actual production, it may include a plurality of main seam 24 and point in communication Branch seam 25.Therefore, on the basis of this embodiment, may further be provided in remaining crack of the main connection of seam 24, it is multiple so as to be formed Miscellaneous seam net form state is to simulate the seam web frame in actual production, it is not limited to the seam net form state of the present embodiment.

Detection components 30 include pressure-detecting device and flow detector, and pressure-detecting device is arranged on main seam 24 with dividing The connectivity part of branch seam 25, the pressure value of the connectivity part for detecting main seam 24 and branch's seam 25, flow detector are arranged on master The porch of seam 24, for detecting the flow value for the mulling slurry for entering main seam 24.

It should be noted that each connectivity part in main seam 24 and branch's seam 25 is mounted on pressure-detecting device, for examining Survey the pressure value that main seam 24 stitches 25 connectivity part with branch.It is main seam 24 porch installation flow detector, for detect into Become owner of the flow value of the mulling slurry of seam 24.Influence of the research flow to proppant laying result accordingly, and main seam 24 and branch Proppant can be characterized into the laying filling effect of branch's seam 25 by stitching the pressure value of 25 connectivity parts.

Specifically, hollow box body 22 and seam net chunk 23 are respectively clear hollow casing 22 and transparent seam net chunk 23.

It should be noted that in this embodiment one, hollow box body 22 and seam net chunk 23 are respectively clear hollow casing 22 and transparent seam net chunk 23, make hollow box body 22 and seam net chunk 23, such as glass or polyphenyl second from transparent material The less high score subclass material of crystallinity of alkenes.The hollow box body 22 and seam net chunk 23 of transparent material can ensure directly perceived clear Form of the clear observation mulling slurry after the flow process in stitching screen component 20 and proppant are laid, analyzes each of experimentation Kind experimental variable, such as interference etc. lays effect to proppant between width, crack tortuosity, crack inner wall roughness and seam between seam Influence.

Further, the sealing bearing of trend of main seam 24 is parallel with the length direction of hollow box body 22, and seam net chunk 23 wraps At least one set of component groups are included, at least one component is included in each component groups, component groups include vertical masonry joint component groups 231, R-joining Component groups 232 and irregular slit component groups 233.

Wherein, vertical masonry joint component groups 231 include two cube components 2311, the relative face of two cube components 2311 It is parallel to each other and is arranged at intervals, forms the branch seam 25 vertical with main seam 24.

It should be noted that in embodiment one of the present utility model, crack is formed by adjacent seam net chunk 23 , seam net chunk 23 includes at least one set of component groups, includes at least one component in each component groups, component groups include vertical masonry joint Component groups 231, R-joining component groups 232 and irregular slit component groups 233, respectively to formed branch seam 25 in vertical masonry joint, R-joining And irregular slit.

Wherein, vertical masonry joint is relative two faces interval as two cube components 2311 and obtained from be arrangeding in parallel, The vertical masonry joint is vertical with main seam 24.Further, can also by adjust cube component 2311 it is main seam 24 sealing bearing of trends Length, so as to adjust main seam 24 and the positions of vertical masonry joint connectivity part.

R-joining component groups 232 include two straight triangular prism components 2321, and the inclined-plane of two straight triangular prism components 2321 is relative And be arranged at intervals, to form between main seam 24 the branch's seam 25 for forming slanted angle.

It should be noted that R-joining is relative by the inclined-plane of two straight triangular prism components 2321 and is arranged at intervals what is obtained, should R-joining forms inclined angle with main seam 24, and the different angle of angle can pass through the inclination angle on the inclined-plane for adjusting straight triangular prism Degree is realized.Preferably, two straight triangular prism inclined-planes are identical relative to the angle of inclination of 24 sealing bearing of trends of main seam, ensure to be formed The uniform R-joining of fracture width.Further, side where the right-angle side of straight triangular prism can also be with cube component 2311 Side relative spacing is set, and so as to form vertical masonry joint, therefore the component that can flexibly fix both shapes according to being actually needed is with shape Branch into different shape stitches 25.

Irregular element group includes two components 2331 in irregular shape, two 2331 common splits of component in irregular shape Into cube, relative two face of two components 2331 in irregular shape is the folding face being mutually matched, and two in irregular shape The folding face of component 2331 is arranged at intervals, and is stitched with forming the branch connected with main seam 24 between two components 2331 in irregular shape 25。

It should be noted that irregular slit is formed by two splits of component 2331 in irregular shape, formed after split vertical Cube.It is the folding face being mutually matched in the opposite face of two components 2331 in irregular shape, both are arranged at intervals to be formed and main seam Branch's seam 25 of 24 connections.The irregular slit is mainly to simulate the crack with tortuosity, and it is tortuous further to study crack Spend the influence that effect is laid to proppant.

Particularly, two side walls for being oppositely arranged and not forming main seam 24 of cube component 2311 can be relative in level side Upward another two side wall produces synchronous slide in the direction along two side wall lines, with one in two side walls by mixed During the pressure of body, another in two side walls is promoted along two side wall line direction synchronizing movings.

Fig. 4 is to disturb movement between the fracture support agent that the utility model embodiment one provides lays the seam of analogue experiment installation Preceding cube component inside structural representation, Fig. 5 are that the fracture support agent that the utility model embodiment one provides lays simulation in fact Cube component inside structural representation after interference is mobile between the seam of experiment device, Fig. 6 are that the utility model embodiment one provides Fracture support agent disturbs cube element structure schematic diagram after movement between laying the seam of analogue experiment installation.Fig. 4 referring to the drawings- Shown in Fig. 6, two side walls for being oppositely arranged in cube component 2311 and not forming main seam 24 can relatively in the horizontal direction Another two side wall produces synchronous slide in the direction along two side wall lines, i.e. the first side wall 2311a and with the first side wall 2311a The side wall of face produces synchronous slide, the side of slip relative to the first side wall 2311b and with the side wall of the first side wall 2311b faces To being the first side wall 2311a and the line direction between the side wall of the first side wall 2311a faces.Producing the mode slided can be with Have a variety of, such as be fixed with trace between the side wall of the first side wall 2311a and the first side wall 2311a faces in the present embodiment 2311c, after filling mulling slurry in the branch's seam 25 contacted with the first side wall 2311a, the first side wall 2311a is by mortar After the pressure of body, apply direction to pressure and move.The internal structure of cube component 2311 before motion is as shown in Figure 4.Transporting During dynamic, driven by trace 2311c, moved therewith to equidirectional with the side wall of the first side wall 2311a faces.So as to The structure of cube component 2311 such as Fig. 5 and Fig. 6 is formed, the side wall with the first side wall 2311a faces is relative to cube component 2311 is overall to an outer projection part, and mulling slurry in 25 stitches in the branch that the boss can further influence to contact Flowing, so as to influence the laying of proppant herein, therefore the laying of proppant in 25 is stitched by the branch contacted with the first side wall 2311a Can influence and the laying of proppant in branch's seam 25 of the side wall of the first side wall 2311a faces indirectly.If conversely, and the first side wall After extruding of the side wall of 2311a faces by mulling slurry, trace 2311c and the first side wall 2311a can be also driven to move.On The gearing process stated can simulate the process disturbed in actual production between seam, and interference lays result to proppant between research seam accordingly Influence.

Specifically, the paster that outer surface is mat surface is pasted on the surface that seam screen component 20 contacts with crack.

It should be noted that in the rock stratum of reality, the wall in crack has certain roughness.Therefore it is new in this practicality In type embodiment one, can by the paster in the surface mount outer surface that contact with crack of seam screen component 20 for mat surface so that Simulate the roughness of actual rock stratum.Further, can also be real according to the feature being actually needed from different roughness, increase simulation Test the similarity with actual rock stratum.

Specifically, seam net chunk 23 has hollow cavity, it is further opened with the side wall in the formation crack of seam net chunk 23 more Individual eyelet, multiple eyelets connect with hollow cavity, for making the fracturing fluid in the mulling slurry in crack flow into hollow cavity.

It should be noted that in actual rock stratum, because the consistency of rock stratum is different, can exist wherein micro gap or Hole so that the fracturing fluid in mulling slurry, which is penetrated into rock stratum, forms leak-off.Therefore, can in the utility model embodiment one By seam net chunk 23 formation crack side wall on open up multiple eyelets, and opened up inside it connected with eyelet it is hollow Cavity so that fracturing fluid can be flowed into hollow cavity by the eyelet, simulate the leak-off process in actual production.Further, The aperture of eyelet and hole shape may be configured as difference, increase model experiment and the similarity of actual rock stratum.

Particularly, flow control valve 15 is additionally provided between injection pump 13 and seam screen component 20, enters seam net group for adjusting The flow of the mulling slurry of part 20.

It should be noted that the flow value that mulling slurry enters seam screen component 20 can be fixing to proppant laying generation one Ring, if flow is excessive, filter loss can be caused to increase, be unfavorable for proppant and uniformly lay；And if flow is too small, proppant can not fill The filling of foot also can equally cause proppant to lay uneven into each branch seam 25.Therefore can be in injection pump 13 and seam net group Flow control valve 15 is set on the pipeline that part 20 connects, by adjusting the flow value of mulling slurry, realizes the uniform paving of proppant Put.

Further, in addition to control device, control device electrically connects with flow control valve 15, for controlling Flow-rate adjustment The switch of valve 15.

Control device electrically connects with flow detector and pressure-detecting device respectively, for receiving flow detector inspection The pressure value of flow value and the pressure-detecting device detection of survey, and flow rate pressure change song is drawn according to flow value and pressure value Line chart.

It should be noted that be additionally provided with control device in the utility model embodiment one, control device respectively with stream Adjustable valve 15, flow detector and pressure-detecting device electrical connection, so as to control the switch of flow control valve, realize the mould The intelligent manipulation of draft experiment device.Further the flow value of reception flow detector detection and pressure-detecting device detect Pressure value, experimental data value is stored, and flow rate pressure change curve is drawn according to experimental data value, the knot of analysis experiment in real time Fruit.

Further, the embodiment that also settable high-speed camera recorder record proppant is laid in the present embodiment.

Further, enclosed outside hollow box body 22 provided with the netted frame for being used to fasten the outer wall of hollow box body 22.

It should be noted that to prevent the flow value of mulling slurry into seam screen component 20 excessive, hollow box body 22 is caused Proppant is laid with the seam compressive deformation of screen component 20 and had an impact, encloses and is set for fastening hollow box body outside hollow box body 22 The netted frame of 22 outer walls, for increasing the support strength of hollow box body 22.

Particularly, shown in reference picture 7, Liquid and gas damper 40 is also included in the utility model embodiment one, the gas-liquid is delayed Rushing device 40 mainly includes plunger, cylinder body, air chamber, piston and liquid room, wherein liquid room by pipeline and the outlet of injection pump 13, Air chamber connects with the exit of main seam 24, and when the injection mulling slurry pressure of injection pump 13 is excessive, a part of fracturing fluid enters Liquid room, the plunger in cylinder body is promoted to be moved to air chamber, gas gas pressure inside increase, gas is pressed into main seam 24 by pipeline In.But when the pressure of injection pump 13 is excessive, piston can reset under gas pressure effect, be moved to liquid room direction, so as to realize Vapor liquid equilibrium, thus also can it is main seam 24 and Liquid and gas damper 40 between form a vapor liquid equilibrium passage, to prevent into It is excessive to enter to stitch the pressure value of the mulling slurry of screen component 20, causes proppant to lay the problem of uneven.

The fracture support agent that the utility model embodiment one provides lays analogue experiment installation, by stitching in net chunk 23 not The component of similar shape simulates the complicated seam net form state of various forms, by setting trace 2311c moulds between the side wall of component Intend interfering process between the seam in actual crack, by adjusting the distance between each seam net chunk 23 so as to adjust width between seam, pass through True crack tortuosity is simulated with seam net chunk 23 of different shapes, is glued by the lateral wall that crack is contacted in seam net chunk 23 Paste coarse paster and simulate true crack inner wall roughness, and by adjusting the discharge capacity of injection pump 13, so as to study it to support Agent lays the influence of result in crack, it is ensured that simulated experiment is consistent with true fracture support agent laying mechanism, improves crack branch Support applicability and accuracy that agent lays simulated experiment.

Fig. 8 is that the fracture support agent of the offer of the utility model embodiment two lays the flow chart of analogue experiment method, such as Fig. 8 Shown, the utility model embodiment two provides a kind of fracture support agent and lays analogue experiment method, applied to above-mentioned crack branch Agent is supportted to lay in analogue experiment installation, including：

Step S1：The multiple seam net chunks 23 stitched in screen component 20 are fixed in hollow box body 22, with hollow box body 22 are internally formed crack, and crack includes branch's seam 25 that a main seam 24 and at least one connects with main seam 24；Main seam 24 and seam The slurry outlet 211 of simulation wellbore hole 21 connects in screen component 20；

Step S2：The simulation wellbore hole for the mulling slurry injection seam screen component 20 that proppant and fracturing fluid are uniformly mixed to form 21, and mulling slurry is flowed out to by the slurry outlet 211 of simulation wellbore hole 21 in crack；

Step S3：Detection mulling slurry flows into the flow value of main seam 24 and main seam 24 stitches the pressure of 25 connectivity parts with each branch Force value, and flow rate pressure change curve is determined according to pressure value and flow value.

It should be noted that the fracture support agent that the utility model embodiment two provides lays analogue experiment method, first, Using component groups of different shapes in screen component 20 are stitched a main seam 24 and at least one is formed in the inside split of hollow box body 22 The branch's seam 25 connected with main seam 24, wherein vertical masonry joint component groups 231, R-joining component groups 232 and irregular slit component groups can be passed through 233 vertical masonry joint, R-joining and the seams in irregular shape formed in branch's seam 25.

Mulling slurry is formed by proppant and fracturing fluid are well mixed using mixing sand tank 14, by injection pump 13 by mortar Body injection seam screen component 20 in, the slurry outlet 211 by stitching simulation wellbore hole 21 in screen component 20 flow into it is main seam 24 and with master In each branch seam 25 of the connection of seam 24.

Enter seam screen component 20 by being arranged on injection pump 13 and stitching the flow detector detection between screen component 20 The flow value of mulling slurry, each branch of pressure-detecting device detection detection of 25 connectivity parts is stitched by being arranged on main seam 24 and branch The pressure value of 25 porch is stitched, so that it is determined that be to draw flow rate pressure change curve between flow value and pressure value, point Analyse the influence of its effect laid to proppant.

The fracture support agent that the utility model embodiment two provides lays analogue experiment method, by stitching in net chunk 23 not The component of similar shape simulates the complicated seam net form state of various forms, by setting trace 2311c moulds between the side wall of component Intend interfering process between the seam in actual crack, by adjusting the distance between each seam net chunk 23 so as to adjust width between seam, pass through True crack tortuosity is simulated with seam net chunk 23 of different shapes, is glued by the lateral wall that crack is contacted in seam net chunk 23 Paste coarse paster and simulate true crack inner wall roughness, and by adjusting the discharge capacity of injection pump 13, so as to study it to support Agent lays the influence of result in crack, it is ensured that simulated experiment is consistent with true fracture support agent laying mechanism, improves crack branch Support applicability and accuracy that agent lays simulated experiment.

One of ordinary skill in the art will appreciate that：Realizing all or part of step of above-mentioned each method embodiment can lead to The related hardware of programmed instruction is crossed to complete.Foregoing program can be stored in a computer read/write memory medium.The journey Sequence upon execution, execution the step of including above-mentioned each method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or Person's CD etc. is various can be with the medium of store program codes.

Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly The scope of each embodiment technical scheme of type.

Claims (9)

1. a kind of fracture support agent lays analogue experiment installation, simulated experiment is laid for fracture support agent, it is characterised in that bag Include mulling slurry dispensing assembly, seam screen component and detection components；

The mulling slurry dispensing assembly includes proppant holding vessel, fracturing fluid holding vessel, injection pump and mixing sand tank, the support Entrance of the outlet of agent holding vessel and the fracturing fluid holding vessel with the mixing sand tank connects, for the proppant to be stored The fracturing fluid in proppant and the fracturing fluid holding vessel in tank, which is delivered in the mixing sand tank, is mixed to form mulling slurry；

The outlet of the mixing sand tank is connected by the injection pump with the seam screen component, for the mulling slurry to be injected into institute State in seam screen component；

The seam screen component includes the simulation wellbore hole, hollow box body and the multiple and contour seam of the hollow box body placed vertically Net chunk, the slurry outlet for flowing out the mulling slurry is offered on the simulation wellbore hole, and the seam net chunk is each attached to Inside the hollow box body, it is described seam net chunk be adjacent to the hollow box body inwall, and the adjacent seam net chunk it Between there is interval, to be formed can pour into the crack of the mulling slurry, the crack includes one and connected with the slurry outlet Main seam and at least one stitches with the main branch connected of stitching；

The detection components include pressure-detecting device and flow detector, and the pressure-detecting device is arranged on the main seam The connectivity part stitched with the branch, the pressure value for the connectivity part stitched for detecting the main seam with the branch, the flow inspection The porch that device is arranged on the main seam is surveyed, for detecting the flow value for the mulling slurry for entering the main seam.

2. fracture support agent according to claim 1 lays analogue experiment installation, it is characterised in that the hollow box body and The seam net chunk is respectively clear hollow casing and transparent seam net chunk.

3. fracture support agent according to claim 1 lays analogue experiment installation, it is characterised in that the sealing of the main seam Bearing of trend is parallel with the length direction of the hollow box body, and the seam net chunk includes at least one set of component groups, each described Include at least one component in component groups, the component groups include vertical masonry joint component groups, R-joining component groups and irregular slit component Group；

Wherein, the vertical masonry joint component groups include two cube components, and the relative face of two cube components is mutually flat Row and interval setting, stitched with forming the branch vertical with the main seam；

The R-joining component groups include two straight triangular prism components, and the inclined-plane of two straight triangular prism components is relative and interval is set Put, to form branch's seam forming slanted angle between the main seam；

The irregular element group includes two components in irregular shape, and two common splits of component in irregular shape are set up Cube, relative two face of two components in irregular shape is the folding face being mutually matched, and two described in irregular shape The folding face of component is arranged at intervals, and is stitched with being formed between two components in irregular shape with the main branch connected of stitching.

4. fracture support agent according to claim 3 lays analogue experiment installation, it is characterised in that the cube component Two side walls for being oppositely arranged and not forming the main seam can relatively in the horizontal direction another two side wall along described two The direction of individual side wall line produces synchronous slide, the pressure with one in described two side walls by the mulling slurry When, another in described two side walls is promoted along described two side wall line direction synchronizing movings.

5. the fracture support agent according to claim any one of 1-4 lays analogue experiment installation, it is characterised in that the seam Paste the paster that outer surface is mat surface in the surface that screen component contacts with the crack.

6. fracture support agent according to claim 5 lays analogue experiment installation, it is characterised in that the seam net chunk tool There is hollow cavity, multiple eyelets, the multiple hole are further opened with the side wall in the formation crack of the seam net chunk Eye connects with the hollow cavity, described hollow for flowing into the fracturing fluid in the mulling slurry in the crack In cavity.

7. fracture support agent according to claim 5 lays analogue experiment installation, it is characterised in that the injection pump and institute State seam screen component between be additionally provided with flow control valve, for adjust enter it is described seam screen component the mulling slurry flow.

8. fracture support agent according to claim 7 lays analogue experiment installation, it is characterised in that also includes control dress Put, the control device electrically connects with the flow control valve, for controlling the switch of the flow control valve；

The control device electrically connects with the flow detector and the pressure-detecting device respectively, for receiving the stream The flow value of amount detecting device detection and the pressure value of pressure-detecting device detection, and according to the flow value The flow rate pressure change curve is drawn with the pressure value.

9. fracture support agent according to claim 8 lays analogue experiment installation, it is characterised in that outside the hollow box body Enclose provided with the netted frame for being used to fasten the hollow box body outer wall in portion.