CN205638405U - Crack guiding device - Google Patents

Crack guiding device Download PDF

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Publication number
CN205638405U
CN205638405U CN201620330073.1U CN201620330073U CN205638405U CN 205638405 U CN205638405 U CN 205638405U CN 201620330073 U CN201620330073 U CN 201620330073U CN 205638405 U CN205638405 U CN 205638405U
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China
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unit
flow guiding
guiding unit
injection unit
input
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Inventor
张福祥
杨向同
袁学芳
周珺
刘洪涛
刘举
冯觉勇
耿海龙
王茜
谢剑飞
景宏涛
张丽萍
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Petrochina Co Ltd
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Petrochina Co Ltd
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Abstract

The utility model provides a crack guiding device, include: the fracturing fluid flow detection device comprises a flow guide unit, a first injection unit, a second injection unit and a flow detection unit, wherein the output end of the flow guide unit is connected with the flow detection unit, the input end of the flow guide unit is respectively connected with the first injection unit and the second injection unit, the first injection unit is used for injecting a temporary plugging agent into the flow guide unit, and the second injection unit is used for injecting fracturing fluid into the flow guide unit; be equipped with two mountings that are used for two fixed rock stratum samples in the water conservancy diversion unit, and fix on two mountings form the crack between two rock stratum samples, the crack with the input and the output of water conservancy diversion unit are linked together, the utility model provides a crack guiding device has solved current dull and stereotyped crack guiding device and has leaded to the unable effectual technical problem who guides fracturing construction design of experimental parameter because unable simulation temporary plugging agent leads to the stifled effect of rock stratum crack temporarily.

Description

Fracture guide device
Technical field
This utility model relates to petroleum works technical field, particularly to a kind of fracture guide device.
Background technology
Along with the increase of oil extraction, reservoir quality changes in poor quality, Low Permeability Oil/gas reserves Becoming the oil-producing main body on oil field, for these low permeability oil fields, general employing fracturing production mode Exploit, in order to the recovery ratio in original oil field can be improved, general employing fiber temporary stall pressure technology, I.e. in fracturing process, first pass through pressure break agent and break rock stratum, after old fracture open, in pressure break agent Adding diverting agent in real time, diverting agent enters in old crack, along with the gathering of diverting agent can produce high intensity Filter cake, make follow-up pressure break agent can not enter in old crack, so along with the rising of pressure, will produce Secondary oil reservoir ruptures, and then change fracture initiation orientation is to produce new crack, by new crack Exploit, the yield in original oil field can be improved.
At present, during in order to ensure the pressure technology implementation of fiber temporary stall, predetermined fracturing effect can be reached, General carry out fracturing experiments to simulate fracturing process by flat board fracture guide device the most in the lab, be existing Field fiber blocks up turnaround fracture temporarily to be implemented to provide experiment basis and theoretical foundation.
But this flat board fracture guide device can only simulate the pressure break agent fracturing effect to rock stratum, it is impossible to simulation The diverting agent the most stifled effect to formation fractures, when blocking up work the most temporarily, needs to carry out repeatedly The most stifled trial, by virtue of experience fracture blocks up temporarily, and work efficiency is relatively low.
Utility model content
This utility model provides a kind of fracture guide device, solve existing flat board fracture guide device by Formation fractures is blocked up temporarily effect cause experiment parameter cannot effectively instruct pressure break to execute in diverting agent cannot be simulated The technical problem of work design.
This utility model provides a kind of fracture guide device, including:
Flow guiding unit, the first injection unit, the second injection unit and flow detection unit, wherein,
The outfan of described flow guiding unit is connected with described flow detection unit, the input of described flow guiding unit End is connected with described first injection unit and described second injection unit respectively, and described first injection unit is used In injecting diverting agent to described flow guiding unit, described second injection unit is for injecting to described flow guiding unit Fracturing fluid;
It is provided with two fixtures for fixing two pieces of formation sample in described flow guiding unit, and is fixed on institute State formation crack between the described two pieces of formation sample on two fixtures, described crack and described water conservancy diversion list The input of unit is connected with outfan.
In embodiment of the present utility model, optionally, the distance between said two fixture is adjustable Joint.
In embodiment of the present utility model, optionally, the input of described flow guiding unit is provided with first Pressure detecting part;
The outfan of described flow guiding unit is provided with the second pressure detecting part, described first pressure detecting part and Described second pressure detecting part is for detecting the input of described flow guiding unit and the pressure of outfan.
In embodiment of the present utility model, optionally, described flow guiding unit is provided with temperature regulating part, Described temperature regulating part is for regulating the temperature in described flow guiding unit.
In embodiment of the present utility model, optionally, described first injection unit includes: piston container And nitrogen cylinder, wherein, described piston container includes the first cavity and the second cavity separated by piston, institute State the input of first cavity outlet with described flow guiding unit for storing diverting agent and described first cavity Being connected, described second cavity is connected with described nitrogen cylinder.
In embodiment of the present utility model, optionally, the exit of described first cavity is provided with the first control Valve processed;
It is provided with the second control valve between described nitrogen cylinder and described second cavity.
In embodiment of the present utility model, optionally, also include:
Three way cock, wherein, described three way cock includes the first joint, the second joint and the 3rd joint, Described first joint, described second joint and described 3rd joint respectively with the input of described flow guiding unit, Described first cavity is connected with described second injection unit.
In embodiment of the present utility model, optionally, described second injection unit includes constant-flux pump, institute State constant-flux pump for being pumped in described flow guiding unit by the fracturing fluid of storage in described second injection unit.
In embodiment of the present utility model, optionally, described second injection unit and described flow guiding unit The exit that input is connected is provided with the 3rd control valve.
In embodiment of the present utility model, optionally, the outfan of described flow guiding unit and described flow The pipeline that detector unit is connected is provided with the 4th control valve.
This utility model provides a kind of fracture guide device, by include flow guiding unit, the first injection unit, Second injection unit and flow detection unit, the outfan of described flow guiding unit and described flow detection unit Be connected, the input of described flow guiding unit respectively with described first injection unit and described second injection unit Being connected, described first injection unit is for injecting diverting agent to described flow guiding unit, and described second injects list Unit is for injecting fracturing fluid to described flow guiding unit;It is provided with in described flow guiding unit for fixing two pieces of rock stratum Forming crack between two fixtures of sample, and described two pieces of formation sample, described crack is led with described The input of stream unit is connected with outfan, so when the first injection unit is by diverting agent and the second note After entering the crack of the formation sample that fracturing fluid is implanted sequentially in flow guiding unit by unit, pass through flow detection Unit judges the most stifled effect of diverting agent fracture to the uninterrupted of the outfan of flow guiding unit, thus is The enforcement of on-the-spot diverting agent turnaround fracture technology provides experiment basis and theoretical foundation, in oil exploitation process In, improve on-the-spot work efficiency, therefore, the fracture guide device that this utility model provides solves existing Some flat board fracture guide devices due to cannot simulate diverting agent formation fractures is blocked up temporarily effect cause experiment ginseng Number cannot effectively instruct the technical problem that pressing crack construction designs.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, Accompanying drawing in describing below is embodiments more of the present utility model, comes for those of ordinary skill in the art Say, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the embodiment one of this utility model fracture guide device;
Fig. 2 is the structural representation of the embodiment two of this utility model fracture guide device.
Reference:
Flow guiding unit-30;
First injection unit-10;
Second injection unit-20;
Flow detection unit-40;
Input-B;
Outfan-A;
First pressure detecting part-301;
Second pressure detecting part-302;
Piston container-101;
Nitrogen cylinder-102;
First cavity-101a;
Second cavity-101c;
Piston-101b;
First control valve-101d;
Second control valve-1021;
3rd control valve-201;
4th control valve-303;
Three way cock-50.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, below in conjunction with Accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clear, It is fully described by, it is clear that described embodiment is a part of embodiment of this utility model rather than complete The embodiment in portion.Based on the embodiment in this utility model, those of ordinary skill in the art are not making The every other embodiment obtained under creative work premise, broadly falls into the scope of this utility model protection.
Embodiment one
Fig. 1 is the structural representation of the embodiment one of this utility model fracture guide device, wherein, this reality Execute the fracture guide device of example offer for diverting agent is carried out prior mould to the most stifled effect of formation sample Intend, thus experimental basis and theoretical basis are provided during reality is applied, in order to improve the work of site operation Efficiency.
In the present embodiment, as it is shown in figure 1, fracture guide device includes: flow guiding unit 30, first injects Unit the 10, second injection unit 20 and flow detection unit 40, wherein, flow guiding unit 30 includes input End B and output terminals A, the output terminals A of flow guiding unit 30 is connected with flow detection unit 40, water conservancy diversion list The input B of unit 30 is connected with the first injection unit 10 and the second injection unit 20 respectively, and first injects Unit 10 is for injecting diverting agent to flow guiding unit 30, and the second injection unit 20 is for flow guiding unit 30 inject fracturing fluid.
Wherein, in order to realize the diverting agent the most stifled effect to formation sample, in the present embodiment, choose Formation sample, concrete, formation sample can be the monoblock rock stratum fetched by job site, is split After splitting, two pieces of formation sample of formation, in order to two pieces of formation sample are fixed, in the present embodiment, Two fixture (not shown) for fixing two pieces of formation sample it are provided with in flow guiding unit 30, i.e. two Two pieces of formation sample are fixed by fixture, and when two pieces of formation sample are placed on fixture, two pieces Form crack between formation sample, there is certain interval between i.e. two pieces formation sample, specifically can pass through Make to be formed between two pieces of formation sample crack, or also by forming certain interval between two fixtures When fixing formation sample, the position of two pieces of formation sample can be adjusted such that two pieces of rock stratum samples Forming crack between product, wherein, the width in crack needs the fracture width of pressure break with specific reference to actual field Set, the present embodiment is not any limitation as.
Wherein, enter into for the ease of diverting agent and fracturing fluid and crack carries out the most stifled test, the present embodiment In, the input B of flow guiding unit 30 is all connected with crack with output terminals A, and such first injects list Unit 10 and the second injection unit 20 be when injecting diverting agent and fracturing fluid in flow guiding unit 30, diverting agent with Fracturing fluid can carry out the most stifled test at crack.
In the present embodiment, diverting agent is specifically as follows the pressure break agent containing fiber, i.e. fiber diverting agent, tool Body can be biodegradable fiber diverting agent, it is also possible to for the graininess diverting agent of different-diameter, wherein, One injection unit 10 when flow guiding unit 30 injects diverting agent, can first by include different-diameter Granular diverting agent injects in the crack between two pieces of formation sample, then by temporary for the fiber that includes different length Blocking agent is re-injected in crack, i.e. diverting agent includes fiber diverting agent and graininess diverting agent, due to Granular diverting agent injects in the crack between two pieces of formation sample, so can make the graininess that volume is bigger Our degree the most first fills up fracture spaces, injects different length the most again in the crack between two pieces of formation sample Fiber diverting agent, the fiber diverting agent of small volume so can be made to replenish between graininess diverting agent Space, make full use of the volume of the graininess diverting agent of different length fiber diverting agent and different-diameter Different, it is achieved that formation fractures is blocked up the most temporarily effect.
In the present embodiment, fracturing fluid specifically uses fracturing fluid conventional in fracturing process, in the present embodiment not Repeat again.
The fracture guide device that the present embodiment provides, concrete work process and principle are as follows:
First, on two fixtures that two pieces of formation sample are separately fixed in flow guiding unit 30, and two Crack, the input B of this crack and flow guiding unit 30 and output terminals A phase is formed between block formation sample Connection;
Then, the first injection unit 10 injects diverting agent, diverting agent to the input B of flow guiding unit 30 In the predetermined crack that input B enters between two pieces of formation sample, owing to diverting agent is containing fiber Pressure break agent, so pressure break agent in diverting agent can be discharged from the output terminals A of flow guiding unit 30, and big Few fibers can be stayed in predetermined crack, and meanwhile, flow detection unit 40 detects flow guiding unit 30 and exports The flow of end A, the uninterrupted detected by flow detection unit 40 judges that diverting agent splits predetermined The temporarily stifled situation of seam, and after estimating that diverting agent can play the most stifled effect according to uninterrupted, first injects Unit 10 stops injecting diverting agent in flow guiding unit 30.
Then, the second injection unit 20 injects fracturing fluid, fracturing fluid to the input B of flow guiding unit 30 Entering in crack, flow detection unit 40 detects the uninterrupted of flow guiding unit 30 output terminals A simultaneously, The uninterrupted detected according to flow detection unit 40 judges the most stifled effect of diverting agent fracture, specifically , the flow detected when flow detection unit 40 is less, then show the most stifled effect of diverting agent fracture Preferably, the most stifled effect of diverting agent fracture is poor.
The present embodiment provide fracture guide device, by include flow guiding unit the 30, first injection unit 10, Second injection unit 20 and flow detection unit 40, the output terminals A of flow guiding unit 30 and flow detection list Unit 40 be connected, the input B of flow guiding unit 30 respectively with the first injection unit 10 and the second injection unit 20 are connected, and the first injection unit 10 is used for injecting diverting agent to flow guiding unit 30, the second injection unit 20 For injecting fracturing fluid to flow guiding unit 30;It is provided with in flow guiding unit 30 for fixing two pieces of formation sample Two fixtures, and between two pieces of formation sample, form crack, the input of crack and flow guiding unit 30 B is connected with output terminals A, so when the first injection unit 10 is by diverting agent and the second injection unit Behind the crack of 20 formation sample being implanted sequentially in flow guiding unit 30 by fracturing fluid, pass through flow detection Unit 40 judges the most stifled effect of diverting agent fracture to the uninterrupted of the output terminals A of flow guiding unit 30, Thus the enforcement for on-the-spot diverting agent turnaround fracture technology provides experiment basis and theoretical foundation, opens at oil During adopting, improve on-the-spot work efficiency, therefore, the fracture guide device solution that this utility model provides Formation fractures is blocked up effect cause owing to cannot be simulated diverting agent by existing flat board fracture guide device of having determined temporarily The technical problem that during actual application, work efficiency is relatively low.
Further, on the basis of above-described embodiment, split for the ease of being formed between two pieces of formation sample Seam, in the present embodiment, when two fixtures are set in flow guiding unit 30, by between two fixtures away from Adjustable from being set to, specifically at least one in two fixtures can be slidably arranged in water conservancy diversion list In unit 30, so by fixture is carried out the distance adjusted between two fixtures of sliding, Jin Ershi The now regulation to the fracture width between on fixture two pieces of formation sample.
In the present embodiment, by the distance between two fixtures is set to adjustable, it is achieved that right The regulation of the fracture width between two pieces of formation sample, so can be to cracks different in actual application Width is simulated test, thus expands the simulation experiment to different fracture widths of this fracture guide device, More reference data is provided for reality application.
Embodiment two
Fig. 2 is the structural representation of the embodiment two of this utility model fracture guide device, wherein, upper Stating in embodiment, the most stifled effect of diverting agent is exported according to flow guiding unit 30 by flow detection unit 40 The uninterrupted of end A judges, wherein in order to sentence the most stifled effect of diverting agent more accurately Disconnected, in the present embodiment, as in figure 2 it is shown, the input B of flow guiding unit 30 is provided with the first pressure detecting Part 301, the output terminals A of flow guiding unit 30 is provided with the second pressure detecting part 302, the first pressure detecting Part 301 and the second pressure detecting part 302 are for detecting input B and the output terminals A of flow guiding unit 30 Pressure, in the present embodiment, detected by the first pressure detecting part 301 and the second pressure detecting part 302 The input B of flow guiding unit 30 and output terminals A upward pressure size, thus become according to the pressure detected Change the most stifled situation reflecting diverting agent to formation fractures, therefore, in the present embodiment, not only by The uninterrupted of flow guiding unit 30 output terminals A reacts the diverting agent the most stifled situation to formation fractures, also Can be changed by the pressure of the output terminals A of flow guiding unit 30 and input B and react fiber the most stifled The agent the most stifled situation to formation fractures so that experimental data is more comprehensive, provides many ginsengs for scene Examine data so that during on-the-spot application, work efficiency is higher, more accurate.
In the present embodiment, when the first pressure detecting part 301 and the second pressure detecting part 302 are specifically arranged, First pressure detecting part 301 can be arranged on flow guiding unit 30 input B and the first injection unit 10 Or second on the pipeline connected between injection unit 20, and the first pressure detecting part 301 is arranged on pipeline and leans on On nearly flow guiding unit 30 input B one end, the second pressure detecting part 302 is specifically located at flow guiding unit On pipeline between 30 output terminals A and flow detection unit 40, and the second pressure detecting part 302 is close Flow guiding unit 30 output terminals A is arranged, in the present embodiment, and the first pressure detecting part 301 and the second pressure Detection piece 302 is specifically as follows piezometer, it is also possible to for pressure transducer.
The present embodiment provide fracture guide device in use, when the first injection unit 10 is to flow guiding unit After the input B of 30 injects diverting agent, flow detection unit 40 detects the output terminals A of flow guiding unit 30 Flow, and the first pressure detecting part 301 and the second pressure detecting part 302 detect flow guiding unit 30 and input End B and the pressure of output terminals A, accordingly, when the second injection unit 20 injects pressure to flow guiding unit 30 When splitting liquid, flow detection unit 40 detects the flow of the output terminals A of flow guiding unit 30, and the first pressure Detection piece 301 and the second pressure detecting part 302 detect flow guiding unit 30 input B and output terminals A Pressure, judges the most stifled effect according to the uninterrupted detected and change value of pressure.
Further, on the basis of above-described embodiment, in the present embodiment, owing to rock stratum is split by diverting agent The temporarily stifled effect of seam also has the biggest relation with on-the-spot temperature, in order to can simulated field more accurately Situation, in the present embodiment, flow guiding unit 30 is provided with temperature regulating part (not shown), temperature regulating part Temperature in regulating flow guiding unit 30, i.e. temperature regulating part are big according to the temperature in flow guiding unit 30 The little temperature regulated in flow guiding unit 30, such experimental temperature is identical with work on the spot temperature so that real Test data more accurate.
Further, on the basis of above-described embodiment, in the present embodiment, the first injection unit 10 includes: Piston container 101 and nitrogen cylinder 102, wherein, piston container 101 includes separated by piston 101b One cavity 101a and the second cavity 101c, the first cavity 101a are used for storing diverting agent and the first cavity 101a Outlet be connected with the input B of flow guiding unit 30, the second cavity 101c is connected with nitrogen cylinder 102, Wherein, nitrogen cylinder 102 is used for storing nitrogen, in the present embodiment, in order to diverting agent and nitrogen are controlled, The exit of the first cavity 101a is provided with the first control valve 101d, nitrogen cylinder 102 and the second cavity 101c Between be provided with the second control valve 1021, when needs input diverting agent in flow guiding unit 30, the first note The work process entering unit 10 is as follows:
First, open the first control valve 101d, make to contain fiber diverting agent or the first of graininess diverting agent Cavity 101a connects with the input B of flow guiding unit 30, then, opens the second control valve 1021, nitrogen Nitrogen in gas cylinder 102 is injected in the second cavity 101c, makes the nitrogen in the second cavity 101c increase, Promote piston 101b, and then make the diverting agent in the first cavity 101a be injected in flow guiding unit 30, its In, when needing the injection pressure strengthening diverting agent, the can be made by regulating the second control valve 1021 Nitrogen pressure in two cavity 101c increases, and drags piston 101b, and then in making the first cavity 101a Pressure increases, and when needs stop injecting diverting agent, closes the first control valve 101d and the second control valve 1021.
In the present embodiment, include piston container 101 and nitrogen cylinder 102 by the first injection unit 10, real Show and diverting agent has been injected into the purpose in flow guiding unit 30, the injection pressure of diverting agent can also have been regulated simultaneously Power, simple in construction, easy to operate.
Further, on the basis of above-described embodiment, in the present embodiment, the second injection unit 20 includes Constant-flux pump (not shown), constant-flux pump is for being pumped to lead by the fracturing fluid of storage in the second injection unit 20 In stream unit 30, wherein, constant-flux pump specifically can be arranged on the second injection unit 20 and flow guiding unit 30 On the pipeline that input B is connected, the import of such constant-flux pump is connected with the second injection unit 20, constant-flux pump Outlet be connected with the input B of flow guiding unit 30, or the second injection unit 20 can also be arranged on In, such advection delivery side of pump is connected with the input B of flow guiding unit 30, in the present embodiment, by flat The effect of stream pump makes fracturing fluid can be injected in flow guiding unit 30, and wherein, constant-flux pump is existing equipment, Concrete result and operation principle are referred to existing constant-flux pump, repeat no more in the present embodiment.
Further, on the basis of above-described embodiment, in the present embodiment, the second injection unit 20 with lead The exit that stream unit 30 input B is connected is provided with the 3rd control valve 201, and the 3rd control valve 201 is used for Control the fracturing fluid that the second injection unit 20 injects to flow guiding unit 30, when needs are to flow guiding unit 30 note When entering fracturing fluid, the 3rd control valve 201 is opened, by the second injection unit under the pump action of constant-flux pump Fracturing fluid in 20 is injected in flow guiding unit 30, when needs stop injecting fracturing fluid to flow guiding unit 30 Time, close the 3rd control valve 201, in the present embodiment, the 3rd control valve 201 can be arranged on the second note Enter on the pipeline between unit 20 and flow guiding unit 30 input B, and the 3rd control valve 201 is near The outlet of two injection units 20, wherein, when constant-flux pump is also disposed at the second injection unit 20 and water conservancy diversion list Time on pipeline between unit 30 input B, the 3rd control valve 201 may be located at constant-flux pump and second and injects Between unit 20, or constant-flux pump is between the 3rd control valve 201 and the second injection unit 20.
Further, on the basis of above-described embodiment, due to flow guiding unit 30 input B respectively with First injection unit 10 is connected with the second injection unit 20, for the ease of connecting, in the present embodiment, also Including: three way cock 50, and wherein, three way cock 50 includes that the first joint, the second joint and the 3rd connect Head, the first joint, the second joint and the 3rd joint respectively with input B, first chamber of flow guiding unit 30 Body 101a and the second injection unit 20 are connected, wherein, as shown in Figure 2, for example, the first joint Can be connected with the input B of flow guiding unit 30, the second joint and the first cavity 101a are connected, Concrete, the second joint is connected by the first control valve 101d and the first cavity 101a, the 3rd joint Being connected with the second injection unit 20, concrete, the 3rd joint passes through the 3rd control valve 201 and the second note Entering unit 20 to be connected, in the present embodiment, it is right that the first joint, the second joint and the 3rd joint are only intended to Joint in three way cock 50 makes a distinction, and is not used to limit joint.
Meanwhile, as in figure 2 it is shown, flow guiding unit 30 and the first injection unit 10 and the second injection unit 20 When being connected by three way cock 50, the first control valve 101d can be arranged on three way cock 50 and first On pipeline between cavity 101a, it is also possible to the first control valve 101d is arranged on flow guiding unit 30 and inputs On pipeline between end B and three way cock 50, wherein it is arranged on flow guiding unit when the first control valve 101d Time on pipeline between 30 input B and three way cock 50, need the second injection unit 20 to water conservancy diversion list When fracturing fluid injects in unit 30, need to open the 3rd control valve 201 and the first control valve 101d simultaneously, When needs the first injection unit 10 injects diverting agent to flow guiding unit 30, then close the 3rd control valve 201, Open the first control valve 101d and the second control valve 1021, or can also set in the first control valve 101d While putting on the pipeline between three way cock 50 and the first cavity 101a, input at flow guiding unit 30 On pipeline between end B and three way cock 50, a master control valve is set again.
Further, when flow guiding unit 30 and the first injection unit 10 and the second injection unit 20 are by three When pass joint 50 is connected, owing to three way cock 50 is connected with the input B of flow guiding unit 30, so Pressure in three way cock 50 is identical with the pressure of flow guiding unit 30 input B, and hence it is also possible to will First pressure detecting part 301 is set directly on three way cock 50, by three way cock 50 can so that The setting of the first pressure detecting part 301.
Further, the pipeline that the output terminals A of flow guiding unit 30 is connected with flow detection unit 40 sets There are the 4th control valve 303, the 4th control valve 303 can control the break-make of flow guiding unit 30 output terminals A.
Last it is noted that various embodiments above is only in order to illustrate the technical solution of the utility model, and Non-to its restriction;Although this utility model being described in detail with reference to foregoing embodiments, ability The those of ordinary skill in territory is it is understood that it still can be to the technical scheme described in foregoing embodiments Modify, or the most some or all of technical characteristic is carried out equivalent;And these amendment or Person replaces, and does not make the essence of appropriate technical solution depart from the model of this utility model each embodiment technical scheme Enclose.

Claims (10)

1. a fracture guide device, it is characterised in that including:
Flow guiding unit, the first injection unit, the second injection unit and flow detection unit, wherein,
The outfan of described flow guiding unit is connected with described flow detection unit, the input of described flow guiding unit End is connected with described first injection unit and described second injection unit respectively, and described first injection unit is used In injecting diverting agent to described flow guiding unit, described second injection unit is for injecting to described flow guiding unit Fracturing fluid;
It is provided with two fixtures for fixing two pieces of formation sample in described flow guiding unit, and is fixed on institute State formation crack between the described two pieces of formation sample on two fixtures, described crack and described water conservancy diversion list The input of unit is connected with outfan.
Fracture guide device the most according to claim 1, it is characterised in that said two fixture Between distance be adjustable.
Fracture guide device the most according to claim 2, it is characterised in that described flow guiding unit Input is provided with the first pressure detecting part;
The outfan of described flow guiding unit is provided with the second pressure detecting part, described first pressure detecting part and Described second pressure detecting part is for detecting the input of described flow guiding unit and the pressure of outfan.
Fracture guide device the most according to claim 3, it is characterised in that on described flow guiding unit Being provided with temperature regulating part, described temperature regulating part is for regulating the temperature in described flow guiding unit.
5. according to the arbitrary described fracture guide device of claim 1-4, it is characterised in that described first Injection unit includes: piston container and nitrogen cylinder, and wherein, described piston container includes being separated by piston First cavity and the second cavity, described first cavity is for storing diverting agent and the outlet of described first cavity Being connected with the input of described flow guiding unit, described second cavity is connected with described nitrogen cylinder.
Fracture guide device the most according to claim 5, it is characterised in that described first cavity Exit is provided with the first control valve;
It is provided with the second control valve between described nitrogen cylinder and described second cavity.
Fracture guide device the most according to claim 6, it is characterised in that also include:
Three way cock, wherein, described three way cock includes the first joint, the second joint and the 3rd joint, Described first joint, described second joint and described 3rd joint respectively with the input of described flow guiding unit, Described first cavity is connected with described second injection unit.
Fracture guide device the most according to claim 7, it is characterised in that described second injects list Unit includes constant-flux pump, and described constant-flux pump is for being pumped to the fracturing fluid of storage in described second injection unit In described flow guiding unit.
Fracture guide device the most according to claim 8, it is characterised in that described second injects list The exit that first and described flow guiding unit input is connected is provided with the 3rd control valve.
Fracture guide device the most according to claim 1, it is characterised in that described flow guiding unit The pipeline that is connected with described flow detection unit of outfan be provided with the 4th control valve.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107642349A (en) * 2017-10-16 2018-01-30 西南石油大学 A kind of complex fracture, which can heat, becomes inclination angle proppant morphological Simulation device
CN107664028A (en) * 2016-07-29 2018-02-06 中国石油天然气股份有限公司 Temporary plugging fracturing method and crack flow guide device
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
CN114459974A (en) * 2020-10-21 2022-05-10 中国石油化工股份有限公司 Evaluation device and evaluation method for stability of acid fracturing high-temperature temporary plugging agent

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107664028A (en) * 2016-07-29 2018-02-06 中国石油天然气股份有限公司 Temporary plugging fracturing method and crack flow guide device
CN107642349A (en) * 2017-10-16 2018-01-30 西南石油大学 A kind of complex fracture, which can heat, becomes inclination angle proppant morphological Simulation device
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
CN114459974A (en) * 2020-10-21 2022-05-10 中国石油化工股份有限公司 Evaluation device and evaluation method for stability of acid fracturing high-temperature temporary plugging agent

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