CN208672481U - A kind of sanding gear considering fracturing fluid leak - Google Patents
A kind of sanding gear considering fracturing fluid leak Download PDFInfo
- Publication number
- CN208672481U CN208672481U CN201821353040.4U CN201821353040U CN208672481U CN 208672481 U CN208672481 U CN 208672481U CN 201821353040 U CN201821353040 U CN 201821353040U CN 208672481 U CN208672481 U CN 208672481U
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- China
- Prior art keywords
- fracturing fluid
- metal framework
- sanding gear
- fluid leak
- wellbore hole
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Abstract
The utility model discloses a kind of sanding gears for considering fracturing fluid leak, including mixing sand tank, force (forcing) pump, visualization sanding gear, the visualization sanding gear includes metal framework, simulation wellbore hole, poly (methyl methacrylate) plate, the simulation wellbore hole is equipped with perforation, the poly (methyl methacrylate) plate is equipped with several micropores, the poly (methyl methacrylate) plate is mounted on the two sides of metal framework, the simulation wellbore hole is mounted on one end of metal framework and perforation is located in metal framework, and the mixing sand tank, force (forcing) pump, simulation wellbore hole pass sequentially through pipeline connection；The utility model structure is simple, can simulate leak-off in hydraulic fracturing experiments well and affecting laws are migrated and laid to proppant.
Description
Technical field
The utility model relates to technical fields, and in particular, to a kind of sanding gear for considering fracturing fluid leak.
Background technique
Hydraulic fracturing is the main means of Low permeable oil and gas reservoirs transformation, and improves the important of oil and natural gas recovery ratio
Production measure.Hydraulic fracturing is exactly that fluid is pumped into stratum with certain forces traffic by high-tension apparatus, when pressure is higher than
When formation fracture pressure, formation rock can generate crack, and fluid carries proppant laying and keeps it turning on to the crack crack Zhong Bingshi
State thus forms one or more sufficiently long high flow conductivity between oil-gas reservoir and wellbore and supports crack, more favorably
Pit shaft is penetrated into from stratum in oil gas, thus the technical process for improving oil and gas production, increasing storage economically recoverable.Fracturing fluid is
The core of fracturing technology, its major function be rive crack and along seam convey proppant.
With the rise that shale gas is developed, slippery water fracturing fluid is using more and more extensive.It is smooth in slippery water fracturing process
For water because its viscosity, frictional resistance are low, leak-off problem runs through entire fracturing process.The leak-off bring of fracturing fluid influences very big, fracturing fluid
After a large amount of leak-offs, while reducing fluid efficiency, proppant transport is influenced, pressure break difficulty is increased.Therefore, it is necessary to study filters
Losing the sedimentation migration rule on slippery water fracturing propping agents in crack influences.
According to investigation, the parallel resin organic glass of Babcock first passage in 1967 visually has studied proppant
The rule laid in singly seam.Hereafter the experimental study for passing through numerous researchers, largely improves technique, device,
Design high-pressure flat plate, visualization device is combined with high pressure instrument, large-scale visualization list stitches device and visualization joint network structure etc.
Device becomes closer to the practical FRACTURE CHARACTERISTICS in scene.The utility model introduces fracturing fluid leak dress on forefathers' Research foundation
It sets, devises a set of sanding gear for considering fracturing fluid leak, the live FRACTURE CHARACTERISTICS of more acurrate simulation observes fracturing fluid leak pair
Proppant lays migration affecting laws.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of sanding gear for considering fracturing fluid leak, for simulating waterpower
Affecting laws are migrated to proppant and laid to leak-off in fracturing experiments.
The utility model uses following technical solutions:
It is a kind of consider fracturing fluid leak sanding gear, including mixing sand tank, force (forcing) pump, visualization sanding gear, it is described can
It include metal framework, simulation wellbore hole, poly (methyl methacrylate) plate depending on changing sanding gear, the simulation wellbore hole is equipped with perforation, described organic
Glass plate is equipped with several micropores, and the poly (methyl methacrylate) plate is mounted on the two sides of metal framework, and the simulation wellbore hole is mounted on
One end of metal framework and perforation is located in metal framework, the mixing sand tank, force (forcing) pump, simulation wellbore hole pass sequentially through pipeline company
It is logical.
Preferably, sieve is equipped in the micropore.
Preferably, the micropore is equipped with flow and adjusts lid.
Preferably, the metal framework is equipped with leakage fluid dram far from one end of simulation wellbore hole.
Preferably, waste liquid pool is equipped with by the metal framework, the leakage fluid dram is equipped with switch valve, and the switch valve passes through
Pipeline is connected to waste liquid pool.
The lower section of the preferred metal framework is equipped with reservoir, and metal framework is placed on above reservoir.
Preferably, the metal framework lower end is equipped with Butterworth Hatch.
Preferably, blender is equipped in the mixing sand tank.
Preferably, valve is equipped between the mixing sand tank and force (forcing) pump.
Preferably, pressure gauge is equipped between the force (forcing) pump and simulation wellbore hole.
The beneficial effects of the utility model are:
1, different slit widths (the distance between two poly (methyl methacrylate) plates) can be set to meet different experiments requirement；
2, poly (methyl methacrylate) plate is transformed, so that it is allowed fracturing fluid seepage flow, reaches filtration effect；
3, different meshes sieve is housed on micropore, and is equipped with flow in end and adjusts lid, realizes control leak-off and non-
Uniform leak-off.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, the attached drawing of embodiment will be made below simple
Ground introduction, it should be apparent that, the accompanying drawings in the following description merely relates to some embodiments of the utility model, rather than practical to this
Novel limitation.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the microcellular structure schematic diagram of the utility model；
Fig. 3 is the metal framework left view of the utility model；
Fig. 4 is that the flow of the utility model adjusts the structural schematic diagram of lid；
It is as shown in the figure:
Wherein, 1-blender, 2-mixing sand tanks, 3-valves, 4-pedestals, 5-force (forcing) pumps, 6-pressure gauges, 7-simulations
Pit shaft, 8-preforation tunnels, 9-metal frameworks, 10-poly (methyl methacrylate) plates, 11-reservoirs, 12-waste liquid pools, 13-Butterworth Hatch,
14-leakage fluid drams, 15-micropores, 16-sieves, 17-flows adjust lid.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
The technical solution of the utility model embodiment is clearly and completely described in the attached drawing of type embodiment.Obviously, described
Embodiment is a part of the embodiment of the utility model, instead of all the embodiments.Based on described the utility model
Embodiment, those of ordinary skill in the art's every other embodiment obtained under the premise of being not necessarily to creative work, all belongs to
In the range of the utility model protection.
Unless otherwise defined, the technical term or scientific term that the disclosure uses should be tool in disclosure fields
The ordinary meaning for thering is the personage of general technical ability to be understood.The similar word meaning such as " comprising " or "comprising" used in the disclosure
Point out that element or object before the existing word are covered the element for appearing in the word presented hereinafter or object and its be equal, without
Exclude other elements or object."upper", "lower", "left", "right" etc. are only used for indicating relative positional relationship, when being described object
Absolute position change after, then the relative positional relationship may also correspondingly change.
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in Figures 1 to 4, a kind of sanding gear considering fracturing fluid leak, including it is mixing sand tank 2, force (forcing) pump 5, visual
Change sanding gear, the visualization sanding gear includes metal framework 9, simulation wellbore hole 7, poly (methyl methacrylate) plate 10, the simulation well
Cylinder 7 is equipped with perforation 8, and the diameter of the preforation tunnel 8 is 6mm, and quantity is 3, and the upper end of simulation wellbore hole 7 seals, described to have
Machine glass plate 10 is equipped with several micropores 15, and the poly (methyl methacrylate) plate 10 is mounted on the front and rear sides of metal framework 9, the mould
Quasi- pit shaft 7 is mounted on one end of metal framework 9 and perforation 8 is located in metal framework 9, left side, the upper end of the metal framework 9
Face is sealed with metal plate, and lower end is equipped with Butterworth Hatch 13, the metal plate, simulation wellbore hole 7, poly (methyl methacrylate) plate 10 and metal framework
Silica gel sealing is used between 9；The mixing sand tank 2, force (forcing) pump 5, simulation wellbore hole 7 pass sequentially through pipeline connection.
Sieve 16 is radially provided in the micropore 15, depending on quantity and mesh number require according to specific experiments, the micropore
15 outer end face is equipped with flow and adjusts lid 17, and it includes that two pieces of arc-shaped lids, shaft and lid body, the insertion of lid body are micro- that flow, which adjusts lid 17,
In hole 15, one of arc-shaped lid can be rotated along shaft, to play the role of unlatching, close micropore 15；The utility model
It is set in micropore 15 with 16 combination of screens of different number and different meshes, and is equipped with flow in 15 end of micropore and adjusts lid
17, the size that control micropore 15 is open reaches the non-homogeneous filtration effect of wall surface, the effect of the micropore 15 also resides in practical pressure break
In the process, the effect that the problem of simulating fracturing fluid leak lays proppant.
The metal framework 9 is equipped with leakage fluid dram 14 far from one end of simulation wellbore hole 7, is equipped with waste liquid pool by metal framework 9
12, the leakage fluid dram 14 is equipped with switch valve, and the switch valve is connected to by pipeline with waste liquid pool 12, the number of the leakage fluid dram 14
Amount is 3, and the lower end of the metal framework 9 is equipped with reservoir 11, and metal framework 9 is placed on 11 top of reservoir.It is described micro-
The waste liquid of waste liquid or Butterworth Hatch 13 in hole 15 flows into reservoir 11；On pipeline between the force (forcing) pump 5 and simulation wellbore hole 7
Equipped with pressure gauge 6；The upper end of the mixing sand tank 2 is equipped with blender 1, and valve 3 is equipped between lower end and force (forcing) pump 5.
Utility model works principle is: it is equipped with micropore 15 on entire poly (methyl methacrylate) plate, sieve 16 is housed on micropore,
During fracturing fluid is pumped into, due to inside and outside differential pressure, fracturing fluid starts outside leak-off, with the progress of leak-off, 16 meeting of part sieve
It is blocked by gravel, filter loss is reduced, and realizes that filter loss is with time, the progress of technique, filtration rate, filter in practical fracturing process
The process that vector gradually decreases；In the actual production process, due to the heterogeneity of crack wall surface, the leak-off of fracturing fluid is also presented
Heterogeneity in experimental provision, fills micropore 15 with different meshes sieve 16, and flow control lid is housed in 15 end of micropore,
It can achieve control leak-off, non-homogeneous filtration effect；During practical crack leak-off, due to 9 rear and front end of metal framework
There is leak-off effect on end face, proppant migration direction is influenced by leak-off, therefore is equipped on two pieces of poly (methyl methacrylate) plates 10 micro-
Hole 15, and sieve 16 is housed, migration affecting laws are laid to proppant to simulate double-walled face leak-off in practical crack.
When the utility model is tested, steps are as follows for specific experiment:
1) fracturing fluid, proppant type are chosen according to requirement of experiment, proppant mesh number etc. adjusts fracture width, and design is real
Proved recipe case installs experimental facilities；
2) fracturing fluid is configured, check device cleannes clean up if having sand setting, hydrops etc., then start to test；
3) the pressurized pump pressurization of configured fracturing fluid is pumped in visualization sanding gear, at this point, in inside and outside differential pressure
Under, fracturing fluid starts leak-off, and filtration rate is larger, and leak-off liquid enters reservoir by the outflow of micropore 15 equipped with sieve 16；
4) after fracturing fluid pumping, fracturing fluid and proppant are mixed in proportion, load fluid is formed and is pumped into crack
Interior, proppant enters crack with load fluid, starts to lay, at this point, proppant particles gradually block sieve 16, filtration rate is gradually
Decline, observation proppant, which lays process and records, finally lays state；
5) a period of time after to be supported dose of laying is stablized, leakage fluid dram 14 is opened, part proppant is flowed out with fracturing fluid, is observed
Proppant lays state until drain terminates；
6) drain terminates, cleaning device, alternately opens Butterworth Hatch, until cleaning up, experiment terminates, and adjusts sieve mesh number
With the openings of sizes of flow control lid, prepare next group.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation be not intended to limit the utility model although the utility model has been disclosed with preferred embodiment as above, it is any ripe
Professional and technical personnel is known, is not being departed within the scope of technical solutions of the utility model, when in the technology using the disclosure above
Hold the equivalent embodiment made a little change or be modified to equivalent variations, but all without departing from technical solutions of the utility model
Hold, any simple modification, equivalent change and modification made by the above technical examples according to the technical essence of the present invention, still
It is within the scope of the technical solutions of the present invention.
Claims (10)
1. a kind of sanding gear for considering fracturing fluid leak, which is characterized in that including mixing sand tank (2), force (forcing) pump (5), visualization
Sanding gear, the visualization sanding gear include metal framework (9), simulation wellbore hole (7), poly (methyl methacrylate) plate (10), the mould
Quasi- pit shaft (7) are equipped with perforation (8), and the poly (methyl methacrylate) plate (10) is equipped with several micropores (15), the poly (methyl methacrylate) plate
(10) two sides of metal framework (9) are mounted on, the simulation wellbore hole (7) is mounted on one end of metal framework (9) and perforation (8) position
In metal framework (9), the mixing sand tank (2), force (forcing) pump (5), simulation wellbore hole (7) pass sequentially through pipeline connection.
2. a kind of sanding gear for considering fracturing fluid leak according to claim 1, which is characterized in that the micropore (15)
It is interior to be equipped with sieve (16).
3. a kind of sanding gear for considering fracturing fluid leak according to claim 2, which is characterized in that the micropore (15)
It is equipped with flow and adjusts lid (17).
4. a kind of sanding gear for considering fracturing fluid leak according to claim 1, which is characterized in that the metal framework
(9) one end far from simulation wellbore hole (7) is equipped with leakage fluid dram (14).
5. a kind of sanding gear for considering fracturing fluid leak according to claim 4, which is characterized in that the metal framework
(9) other to be equipped with waste liquid pool (12), the leakage fluid dram (14) is equipped with switch valve, and the switch valve passes through pipeline and waste liquid pool (12)
Connection.
6. a kind of sanding gear of consideration fracturing fluid leak according to claim 3 or 5, which is characterized in that the metal
The lower section of frame (9) is equipped with reservoir (11), and metal framework (9) is placed on above reservoir (11).
7. a kind of sanding gear for considering fracturing fluid leak according to claim 6, which is characterized in that the metal framework
(9) lower end is equipped with Butterworth Hatch (13).
8. a kind of sanding gear for considering fracturing fluid leak according to claim 1, which is characterized in that the mixing sand tank
(2) blender (1) is equipped in.
9. a kind of sanding gear for considering fracturing fluid leak according to claim 8, which is characterized in that the mixing sand tank
(2) valve (3) are equipped between force (forcing) pump (5).
10. a kind of sanding gear of consideration fracturing fluid leak according to claim 7 or 9, which is characterized in that the pressurization
It pumps and is equipped with pressure gauge (6) between (5) and simulation wellbore hole (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821353040.4U CN208672481U (en) | 2018-08-22 | 2018-08-22 | A kind of sanding gear considering fracturing fluid leak |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821353040.4U CN208672481U (en) | 2018-08-22 | 2018-08-22 | A kind of sanding gear considering fracturing fluid leak |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208672481U true CN208672481U (en) | 2019-03-29 |
Family
ID=65839663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821353040.4U Expired - Fee Related CN208672481U (en) | 2018-08-22 | 2018-08-22 | A kind of sanding gear considering fracturing fluid leak |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208672481U (en) |
-
2018
- 2018-08-22 CN CN201821353040.4U patent/CN208672481U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190329 Termination date: 20190822 |
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| CF01 | Termination of patent right due to non-payment of annual fee |