CN210217719U - Simulation crack sand-packed model - Google Patents
Simulation crack sand-packed model Download PDFInfo
- Publication number
- CN210217719U CN210217719U CN201922227568.8U CN201922227568U CN210217719U CN 210217719 U CN210217719 U CN 210217719U CN 201922227568 U CN201922227568 U CN 201922227568U CN 210217719 U CN210217719 U CN 210217719U
- Authority
- CN
- China
- Prior art keywords
- shaft
- simulated
- horizontal
- simulation
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a simulated crack sand-filling model, which comprises high-pressure glass, an upper frame body, a lower frame body, a connecting bolt, a sealing rubber ring, a simulated shaft, a simulated horizontal shaft, a holder, a cushion block and a plug bolt; the sand filling cavity is formed by the high-pressure glass, the upper frame body and the lower frame body are connected and compressed through connecting bolts, the cushion blocks are positioned in grooves at four corners of the inner side of the lower frame body, a simulation shaft and a simulation horizontal shaft for experiments are cushioned, each shaft penetrates through a pipe hole and is clamped by a clamp holder, and the rest pipe holes are sealed through hole plugging bolts; the utility model discloses a through using high-pressure glass, cushion, holder and tube hole to and introduce the horizontal pipe on the simulation pit shaft, under the condition that improves the visual degree of device, simulate out the in service behavior of horizontal well in the fissured oil and gas reservoir under the multiple condition according to the experimental conditions, with horizontal well development effect evaluation and the technical policy research of studying fissured oil and gas reservoir comprehensively.
Description
Technical Field
The utility model relates to an oil gas development physical simulation experiment field, especially a simulation crack sand-packed model.
Background
Fractured oil and gas reserves have a very important position in the composition of petroleum and natural gas worldwide. Due to the structural characteristics, the fractured oil and gas reservoir has the characteristics of uneven development and distribution of storage and seepage space, great difference between the storage performance of different storage parts of the reservoir and the actual permeability of exploitation in the rock core permeability measured in a laboratory, and the like, so that compared with a non-fractured oil and gas reservoir, the development of the fractured oil and gas reservoir needs to invest more research strength and resources.
In the aspect of well drilling type, the production rate is always greatly limited due to the influence of factors such as matrix permeability and the like in the process of developing fractured oil and gas reservoirs in a common vertical well. And the oil gas output can be effectively improved by utilizing the horizontal well to develop the fractured oil gas reservoir. Therefore, the evaluation of the horizontal well development effect and the research of technical policies of fractured hydrocarbon reservoirs are quite necessary, and meanwhile, a corresponding experimental model is required to be proposed for supporting the implementation of relevant researches.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, a simulated fracture sand filling model is provided.
A simulated crack sand filling model comprises high-pressure glass, an upper frame body, a lower frame body and connecting bolts, wherein the high-pressure glass is arranged in the upper frame body, the upper frame body is arranged above the lower frame body, the connecting bolts are arranged on the peripheries of the upper frame body and the lower frame body and are used for connecting and pressing the upper frame body and the lower frame body to form a sand filling model shell, four circular grooves are respectively arranged at four corners of an inner groove of the lower frame body, four groups of clamp holder holes and pipe holes which are in one-to-one correspondence are arranged at four corners of the upper surface of the upper frame body, the pipe holes are communicated with a sand filling cavity and the outside, clamp holders are arranged in the clamp holder holes, a sealing rubber ring, a simulated horizontal shaft, a simulated shaft, a cushion block and a hole plugging bolt are further arranged in the circular grooves, the simulated horizontal shaft and the simulated shaft penetrate through a part of the pipe holes and, the sealing rubber rings are respectively arranged in all the pipe holes, and the plug hole bolts are arranged in the other part of the remaining pipe holes.
Preferably, the cushion block is a cylinder, and the volume specification of the cushion block is matched with the circular grooves at four corners of the inner groove of the lower frame body.
Preferably, the inner diameter of the pipe hole is the same as that of the circular groove, and the circle center of the pipe hole on one side and the circle center of the circular groove share one vertical axis.
Preferably, the holder bore is immediately adjacent the tube bore.
Preferably, the simulated horizontal shaft consists of a vertical pipe body and a horizontal pipe, the horizontal pipe is arranged at the bottom of the vertical pipe body, the surface of the horizontal pipe is provided with a perforation, and the horizontal pipe can rotate and face along the central axis of the vertical pipe body in the cavity of the device.
Preferably, the bottom of the simulated shaft body is provided with a perforation, and the perforation can rotate and face along the central shaft of the simulated shaft in the cavity of the device.
Preferably, the bottom surfaces of the simulated horizontal shaft and the simulated shaft are circular planes.
Preferably, the holder is installed in a holder hole provided with a simulated horizontal shaft and a simulated shaft in the corresponding pipe hole, and the holder stably holds the simulated horizontal shaft and the simulated shaft.
The utility model has the advantages that:
1. the device structural design is convenient for make up and dismantle and wash, uses glass to improve visual degree simultaneously, can clearly master the particular case in the crack experiment.
2. The depth of the simulation casing pipe entering the sand layer can be changed by adding cushion columns with different lengths into the circular groove, so that the condition of a physical crack simulation experiment under different stratum depth conditions is simulated.
3. The simulated shaft extending into the sand filling layer can be freely set in position, composition and bottom inlet orientation according to experimental requirements, so that the device can be used for simulating and researching fractured oil and gas reservoirs under the conditions of a vertical well or a horizontal well respectively.
Drawings
FIG. 1 is a schematic sectional view of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
in the figure, 1 high-pressure glass, 2 sealing rubber rings, 3 upper frame bodies, 4 lower frame bodies, 5 simulation horizontal shafts, 6 clamping devices, 7 connecting bolts, 8 simulation shafts, 9 cushion blocks and 10 plug hole bolts are arranged.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the present invention.
Example (b):
referring to fig. 1 and 2, the high-pressure glass 1 is arranged in an upper frame 3, the upper frame 3 is arranged above a lower frame 4, and the connecting bolts 7 are arranged at the peripheries of the upper frame 3 and the lower frame 4 and are used for connecting and pressing the upper frame 3 and the lower frame 4 to form a sand-filled model shell; four corners of an inner groove of the lower frame 4 are respectively provided with four circular grooves; four corners of the upper surface of the upper frame 3 are provided with four groups of clamp holes and pipe holes which are in one-to-one correspondence, the pipe holes are communicated with the sand filling cavity and the outside, the clamp holes are close to the pipe holes, the inner diameter of each pipe hole is the same as that of the circular groove, the circle centers of the pipe holes and the circular groove on the same side share one vertical axis, and clamps 6 are arranged in the clamp holes; the cushion block 9 is a cylinder and is arranged in the circular groove, and the volume specification of the cushion block is matched with the circular grooves at four corners of the inner groove of the lower frame 4; the simulation horizontal shaft 5 and the simulation shaft 8 penetrate through a part of pipe holes and are arranged above the cushion block 9, the bottoms of the two simulation shafts are both circular planes, the simulation horizontal shaft 5 consists of a vertical pipe body and a horizontal pipe, the horizontal pipe is arranged at the bottom of the vertical pipe body, the surface of the horizontal pipe is provided with a perforation, the horizontal pipe can rotate and face along the central shaft of the vertical pipe body in a cavity of the device, the bottom of the pipe body of the simulation shaft 8 is provided with a perforation, the perforation can rotate and face along the central shaft of the simulation shaft 8 in the cavity of the device, and the two simulation shafts are stably clamped by the; the plug hole bolt 10 is arranged in the other part of the residual pipe hole; and sealing rubber rings 2 are respectively arranged in all the pipe holes to seal the contact surface formed by each simulated shaft or plug hole bolt 10.
As a further explanation of this embodiment, the height of the cushion block is half of the vertical height of the inner space of the sand-packed model shell, but it is not a limitation of the present invention, and in other embodiments, the height of the cushion column can be determined according to the actual situation.
As a further description of the present embodiment, the simulated horizontal shaft and the simulated shaft are respectively disposed in two sets of pipe holes diagonally distributed in the upper frame, but the present invention is not limited thereto, and the distribution positions of different types of simulated shafts can be selected according to experimental requirements in other embodiments.
As a further illustration of the present embodiment, the orientations of the two sets of simulated bottom perforations of the wellbore are both directed to the center of the device, but not as a limitation of the present invention, the orientations of the bottom perforations may be determined according to experimental requirements in other embodiments.
Use the utility model discloses an embodiment when testing, the operating procedure is:
determining the positions and the number of clamping holes and pipe holes required to be used in the upper frame 3 according to experimental requirements, sealing the unused pipe holes by using plug hole bolts 10, and arranging sealing rubber rings 2 in the pipe holes;
installing a clamping device 6 on a clamping hole corresponding to the pipe hole determined to be used;
arranging cushion blocks 9 in the circular grooves at four corners of the inner groove of the lower frame 4 according to experimental requirements;
arranging the simulated horizontal shaft 5 and the simulated shaft 8 on a cushion block 9 according to the experimental requirements, and filling sand and generating cracks in the horizontal pipe at the bottom and the perforation after determining that the horizontal pipe at the bottom faces the perforation;
and (3) covering the upper frame 3 after sand filling is finished, enabling each simulated shaft to penetrate through the pipe hole, connecting and compacting the whole device by using a connecting bolt 7, checking the sealing performance, clamping the upper end of each simulated shaft by using a clamp holder 6 after the checking is finished, and formally starting the experiment.
After the experiment is completed, the devices are sequentially dismantled, and the sand filling is cleaned.
The utility model discloses visual degree is high, simple structure, and the assembly and disassembly is simple and convenient, easy to maintain to can carry out the physical crack simulation of different grade type pit shaft under different positions, the degree of depth condition according to experimental study's relevant requirement.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the embodiments of the present invention are all covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The utility model provides a simulation crack sand filling model, includes high-pressure glass (1), upper portion framework (3), lower part framework (4), connecting bolt (7), high-pressure glass (1) sets up in upper portion framework (3), upper portion framework (3) set up lower part framework (4) top, connecting bolt (7) set up in upper portion framework (3) and lower part framework (4) periphery, connect and compress tightly upper portion framework (3) and lower part framework (4) constitution sand filling model casing, characterized in that, lower part framework (4) inside slot four corners is equipped with four circular recesses respectively, be provided with four group's holder holes and tube hole that are the one-to-one correspondence on the upper surface four corners of upper portion framework (3), wherein sand filling cavity and external world are filled in the intercommunication, be provided with holder (6) in the holder hole, still be provided with sealing rubber ring (2) in the sand filling model casing, Simulation horizontal shaft (5), simulation shaft (8), cushion (9), consent bolt (10), wherein, cushion (9) set up in the circular recess, simulation horizontal shaft (5) with simulation shaft (8) pass partly the tube hole sets up in cushion (9) top, sealed rubber ring (2) are established respectively in whole tube holes, consent bolt (10) are established in remaining another part tube hole.
2. The simulated fracture sand pack model of claim 1, wherein: the cushion block (9) is a cylinder, and the volume specification of the cushion block is matched with the circular grooves at four corners of the inner groove of the lower frame body (4).
3. The simulated fracture sand pack model of claim 1, wherein: the inner diameter of the pipe hole is the same as that of the circular groove, and the circle center of the pipe hole on one side and the circle center of the circular groove share the same axis in the vertical direction.
4. The simulated fracture sand pack model of claim 1, wherein: the holder bore abuts the tube bore.
5. The simulated fracture sand pack model of claim 1, wherein: the simulation horizontal shaft (5) consists of a vertical pipe body and a horizontal pipe, the horizontal pipe is arranged at the bottom of the vertical pipe body, the surface of the horizontal pipe is provided with a perforation, and the horizontal pipe can rotate and face along the central axis of the vertical pipe body in a cavity of the device.
6. The simulated fracture sand pack model of claim 1, wherein: and the bottom of the body of the simulated shaft (8) is provided with a perforation which can rotate and face along the central shaft of the simulated shaft in the cavity of the device.
7. The simulated fracture sand pack model of claim 2, wherein: the bottom surfaces of the simulated horizontal shaft (5) and the simulated shaft (8) are circular planes.
8. The simulated fracture sand pack model of claim 4, wherein: the gripper (6) is arranged in a gripper hole which is provided with a simulated horizontal shaft (5) and a simulated shaft (8) in the corresponding pipe hole, and the gripper (6) stably grips the simulated horizontal shaft (5) and the simulated shaft (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922227568.8U CN210217719U (en) | 2019-12-12 | 2019-12-12 | Simulation crack sand-packed model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922227568.8U CN210217719U (en) | 2019-12-12 | 2019-12-12 | Simulation crack sand-packed model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210217719U true CN210217719U (en) | 2020-03-31 |
Family
ID=69921628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922227568.8U Active CN210217719U (en) | 2019-12-12 | 2019-12-12 | Simulation crack sand-packed model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210217719U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622668A (en) * | 2020-04-08 | 2020-09-04 | 上海蓝滨石化设备有限责任公司 | Stratum simulation system of rotary steering drilling system test matching system |
| CN113389544A (en) * | 2021-07-09 | 2021-09-14 | 中国石油大学(华东) | Visual model for boundary water reservoir water invasion simulation experiment |
| CN114776285A (en) * | 2022-04-26 | 2022-07-22 | 西南石油大学 | Device for evaluating contribution of fracture filling and perforation capacity of highly-deviated well |
-
2019
- 2019-12-12 CN CN201922227568.8U patent/CN210217719U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622668A (en) * | 2020-04-08 | 2020-09-04 | 上海蓝滨石化设备有限责任公司 | Stratum simulation system of rotary steering drilling system test matching system |
| CN113389544A (en) * | 2021-07-09 | 2021-09-14 | 中国石油大学(华东) | Visual model for boundary water reservoir water invasion simulation experiment |
| CN114776285A (en) * | 2022-04-26 | 2022-07-22 | 西南石油大学 | Device for evaluating contribution of fracture filling and perforation capacity of highly-deviated well |
| CN114776285B (en) * | 2022-04-26 | 2024-05-31 | 西南石油大学 | High-inclination well fracturing filling crack and hole productivity contribution evaluation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210217719U (en) | Simulation crack sand-packed model | |
| CN109991108B (en) | Simulation test method for metal framework reinforced coal and gas outburst under action of dynamic and static loads | |
| CN107165624B (en) | Three-dimensional large-size physical model of fracture-cave carbonate reservoir and preparation method thereof | |
| CN109632509B (en) | Hypergravity true triaxial rock loading experimental apparatus and method | |
| CN102011581B (en) | Simulated evaluation device for well-drilling plugging of stress sensitivity stratum | |
| CN109900543B (en) | Two-dimensional combined stress induction protrusion simulation test device | |
| CN108412472B (en) | Fracture-cavity type carbonate reservoir three-dimensional injection and production model, simulation system and experimental method | |
| CN101725345B (en) | Device for simulating casing-cement sheath damage indoor test under stratum action | |
| CN204188492U (en) | Rock true triaxial permeability clamper | |
| CN109611085B (en) | Hydraulic fracturing coal-series reservoir fracture extension form simulation device and simulation method thereof | |
| CN111579464A (en) | Seepage anisotropy test device and method suitable for triaxial testing machine | |
| CN102353584A (en) | Cylindrical rock core true triaxial gripper | |
| CN107991188B (en) | Method for predicting hydraulic fracture complexity based on core residual stress level | |
| CN104727814A (en) | Heterogeneous artificial core | |
| CN106640016A (en) | Multi-scale true-triaxial horizontal well hydrofracturing pressure bearing cylinder and using method | |
| CN112986287A (en) | Ultrahigh-pressure nonmetal core holder | |
| CN105403444B (en) | A kind of device and method for preparing well-cementing cement sample under high temperature and high pressure environment | |
| CN207991936U (en) | A kind of simulation region of high stress Underground Engineering Excavation rock burst experimental rig | |
| CN112630121B (en) | Device and method for testing permeability of fractured surrounding rock of deep chamber under stress action | |
| CN111189687B (en) | Test method for simulating sliding instability of fractured rock mass under action of injected fluid | |
| CN114910358A (en) | Full-diameter core fracturing crack-making evaluation instrument | |
| CN105547539B (en) | Stress direction measuring system and method based on longitude and latitude strain line | |
| CN207636225U (en) | Detecting earth stress device in a kind of tunnel | |
| CN108362622B (en) | True triaxial clamp holder for keeping rock stress to realize seepage in different directions | |
| CN110631897A (en) | Multifunctional rock core holder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |