CN212031473U

CN212031473U - Artificial rock core pressing and evaluation integrated mechanism

Info

Publication number: CN212031473U
Application number: CN202020472327.XU
Authority: CN
Inventors: 舒晓
Original assignee: Chengdu Nuoxin Petroleum Science & Technology Co ltd
Current assignee: Chengdu Nuoxin Petroleum Science & Technology Co ltd
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2020-11-27
Anticipated expiration: 2030-04-03

Abstract

The utility model relates to an artificial rock core simulation evaluation equipment technical field, concretely relates to artificial rock core suppression and evaluation integral type mechanism, including outside sleeve, internal cover and cock lid, outside sleeve is the cylinder structure, and outside sleeve comprises upper end and lower extreme, the tip outer wall of lower extreme is equipped with first screw thread, the inner circle of locating outside cover lower extreme is inserted to inside cover, the outer wall of internal cover and the inside fixed connection of outside telescopic lower extreme, the cock lid can be dismantled with the lower extreme threaded connection of outer sleeve, the inside of cock lid is equipped with the drain pipe, but this mechanism can have the multipurpose rock core centre gripping evaluation device of rock core suppression, modularization test rock core physical property parameter simultaneously concurrently.

Description

Artificial rock core pressing and evaluation integrated mechanism

Technical Field

The utility model relates to an artificial rock core simulation evaluation equipment technical field, concretely relates to artificial rock core suppression and evaluation integral type mechanism.

Background

The rock core is an important means for scientific research of strata in the process of oil field development, especially plays an important role in experimental research of tertiary oil recovery, oil field recovery rate improvement, stratum drillability simulation evaluation and the like, most of rock core simulation experiments adopt artificial rock cores due to the limitation of small quantity, poor homogeneity and the like of natural rock cores, the preparation equipment of the artificial rock core and various rock core physical property parameter testing instruments are mutually independent, the rock core is transferred from pressurization preparation to the testing process to have a pressure relief process, stress change can influence the rock core physical property, so the original rock core evaluation device can not meet the requirement of the rock core physical property parameter testing accuracy, and the artificial rock core physical properties, such as permeability, water sensitivity, expansion rate and the like, are all prepared in a rock core die specially-made at present and transferred to the rock core testing equipment to test the rock core physical property, the internal stress of the rock core is released in the processes of pressing and transferring, and the obtained various physical parameters have certain deviation with the physical parameters under the condition of simulating formation pressure, so that the physical parameter properties of the rock core under the action of stress cannot be truly reflected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an artificial rock core suppression and evaluation integral type mechanism, but this mechanism has the multipurpose rock core centre gripping evaluation device of rock core suppression, modularization test rock core rerum natura parameter simultaneously concurrently.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides an artificial rock core pressing and evaluation integrated mechanism, which comprises an external sleeve, an internal sleeve and a cock cover, wherein the external sleeve is of a cylindrical structure, the external sleeve is composed of an upper end and a lower end, the outer wall of the end part of the lower end is provided with a first thread, the internal sleeve is inserted into an inner ring at the lower end of the external sleeve, the outer wall of the internal sleeve is fixedly connected with the inside of the lower end of the external sleeve, the cock cover can be detachably connected with the lower end of the external sleeve by threads, the inside of the cock cover is provided with a liquid outlet pipe,

preferably, the inside center department of plug cover is equipped with the baffle, and the center department of baffle is equipped with the lower liquid channel that extends to the inside lower extreme of plug cover, and the drain pipe is one side that the level lies in lower liquid channel extension end, the one end of drain pipe and the inside intercommunication of lower liquid channel, and the inner wall and the outer wall that the plug cover was passed to the one end of drain pipe extend outwards.

Preferably, the inside of liquid discharge passage is equipped with the circular valve plate that is the level setting, and the outer lane of circular valve plate is equipped with can slide and the sealing washer of laminating with liquid discharge passage inner wall, and the upper surface of circular valve plate can level with the upper surface of baffle.

Preferably, a screw rod is arranged below the circular valve plate, a thread sleeve is arranged at the center of the bottom of the cock cover, the lower end of the screw rod penetrates through an inner ring of the thread sleeve and extends towards the lower part of the cock cover, the top of the screw rod can be rotatably inserted into the center of the bottom of the circular valve plate, and a knob is arranged at the extending end of the bottom of the screw rod.

Preferably, the outer wall of the extending end of the liquid outlet pipe is provided with a second thread.

Preferably, the inner sleeve is made of a rubber material.

Preferably, the inner sleeve protrudes from the surface of the inner side wall of the outer sleeve, and the upper end of the inner sleeve is provided with a chamfer.

The utility model has the advantages that: an artificial rock core pressing and evaluating integrated mechanism is characterized in that a cock cover is screwed up through a first thread on the lower end of an outer sleeve when the mechanism is used, an inner sleeve can protrude out of the inner side wall of the outer sleeve in order to better improve the force application effect through a rubber material, a chamfer is arranged at the upper end of the inner sleeve protruding out of the inner side wall of the outer sleeve so as to be convenient for pressurization, when tests such as shale expansion rate, hydration strength and the like are required, the upper surface of a set partition plate is flush with the upper surface of the partition plate, tests such as the shale expansion rate, the hydration strength and the like are further carried out, when the tests such as rock core permeability and the like are required, a screw rod is driven to rotate along a thread sleeve by manual rotation and screwing, a circular valve plate is driven to move downwards along a liquid discharging channel until the circular valve plate passes through one end of a liquid discharging pipe, the tests, the second screw thread that sets up on the drain pipe is connected with the professional equipment of tests such as rock core permeability, and this mechanism can have the multipurpose rock core centre gripping evaluation device that rock core suppression, can modularization test rock core physical property parameter simultaneously concurrently.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic perspective view of a first embodiment of the present invention;

fig. 2 is an exploded view of an embodiment of the present invention;

fig. 3 is a top view of an embodiment of the present invention;

fig. 4 is a cross-sectional view taken along a-a of fig. 3 according to an embodiment of the present invention.

In the figure: 1-an outer sleeve; 2-inner sleeve; 3-plug cover; 4-a first thread; 5-a liquid outlet pipe; 6-a separator; 7-liquid discharge channel; 8-circular valve plate; 9-sealing ring; 10-a screw; 11-a threaded sleeve; 12-a knob; 13-a second thread; and (14) chamfering.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are used only for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms will be understood by those skilled in the art according to the specific circumstances.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being either a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, the artificial core pressing and evaluating integrated mechanism comprises an outer sleeve 1, an inner sleeve 2 and a cock cover 3, wherein the outer sleeve 1 is of a cylindrical structure, the outer sleeve 1 is composed of an upper end and a lower end, the outer wall of the end part of the lower end is provided with a first thread 4, the inner sleeve 2 is inserted into an inner ring at the lower end of the outer sleeve, the outer wall of the inner sleeve 2 is fixedly connected with the inner part of the lower end of the outer sleeve 1, the cock cover 3 is detachably connected with the lower end of the outer sleeve in a threaded manner, a liquid outlet pipe 5 is arranged inside the cock cover 3,

the inside center department of corkscrew 3 is equipped with baffle 6, and the center department of baffle 6 is equipped with lower liquid channel 7 to the extension of the inside lower extreme of corkscrew 3, and drain pipe 5 is the level and lies in one side that lower liquid channel 7 extends the end, and the one end of drain pipe 5 communicates with lower liquid channel 7's inside, and the inner wall and the outer wall that corkscrew 3 was passed to the one end of drain pipe 5 extend outwards.

The inside of lower fluid passage 7 is equipped with the circular valve plate 8 that is the level setting, and the outer lane of circular valve plate 8 is equipped with can slide and the sealing washer 9 of laminating with lower fluid passage 7 inner wall, and the upper surface of circular valve plate 8 can flush with the upper surface of baffle 6, when tests such as needs carry out shale expansion rate, hydration intensity, the upper surface of baffle 6 that sets up keeps flushing with the upper surface of baffle 6, and then carries out tests such as shale expansion rate, hydration intensity.

The below of circular valve plate 8 is equipped with screw rod 10, the bottom center department of cock lid 3 is equipped with thread bush 11, the lower extreme of screw rod 10 passes the inner circle of thread bush and extends to the below of cock lid 3, the top of screw rod 10 can the pivoted insert the bottom center department of locating circular valve plate 8, the bottom of screw rod 10 is extended the end and is equipped with knob 12, when tests such as rock core permeability need to carry out, manual rotation is twisted soon, it is rotatory along thread bush 11 to drive screw rod 10, and make circular valve plate 8 move down along lower liquid passageway 7, stop after passing circular valve plate 8 one end of drain pipe 5, carry out tests such as rock core permeability through lower liquid passageway 7 and drain pipe 5.

The outer wall of the extending end of the liquid outlet pipe 5 is provided with a second thread 13, and the second thread 13 arranged on the liquid outlet pipe 5 is connected with special equipment for testing the rock core permeability and the like.

The inner sleeve 2 is made of rubber material, and in use, the plug cap 3 is screwed down by means of the first thread 4 on the lower end of the outer sleeve 1, in order to better provide the force action.

The inner sleeve 2 protrudes out of the surface of the inner side wall of the outer sleeve, the upper end of the inner sleeve 2 is provided with a chamfer 14, the inner sleeve 2 can protrude out of the inner side wall of the outer sleeve 1, and the upper end of the inner sleeve 2 protruding out of the inner side wall of the outer sleeve 1 is provided with the chamfer 14 so as to be convenient for pressurization.

The working principle is as follows: when the device is used, the plug cover 3 is screwed up through the first thread 4 on the lower end of the outer sleeve 1, in order to better improve the acting force through rubber materials, the inner sleeve 2 can protrude out of the inner side wall of the outer sleeve 1, the upper end of the inner sleeve 2 protruding out of the inner side wall of the outer sleeve 1 is provided with a chamfer 14 so as to be convenient for pressurization, when tests such as shale expansion rate, hydration strength and the like are required, the upper surface of the arranged partition plate 6 is kept flush with the upper surface of the partition plate 6, and then the tests such as the shale expansion rate, the hydration strength and the like are carried out, when the tests such as the rock core permeability and the like are required, the screw rod 10 is rotated and screwed manually, the circular valve plate 8 is driven to rotate along the thread sleeve 11, the circular valve plate 8 moves downwards along the lower liquid channel 7 until the circular valve plate 8 passes through one end of the liquid outlet pipe 5, the tests such, and a second thread 13 arranged on the liquid outlet pipe 5 is connected with special equipment for testing the rock core permeability and the like.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an artificial rock core suppression and evaluation integral type mechanism which characterized in that: including outside sleeve (1), inside cover (2) and cock lid (3), outside sleeve (1) is the cylinder structure, and outside sleeve (1) comprises upper end and lower extreme, the tip outer wall of lower extreme is equipped with first screw thread (4), inner cover (2) are inserted and are located the inner circle of outside cover lower extreme, and the outer wall of inside cover (2) and the inside fixed connection of the lower extreme of outside sleeve (1), the cock lid (3) can be dismantled with the lower extreme threaded connection of outer sleeve, the inside of cock lid (3) is equipped with drain pipe (5).

2. The artificial core pressing and evaluating integrated mechanism according to claim 1, characterized in that: the inside center department of plug cap (3) is equipped with baffle (6), and the center department of baffle (6) is equipped with lower liquid passageway (7) that extend to the inside lower extreme of plug cap (3), and drain pipe (5) are the level and lie in one side that lower liquid passageway (7) extend the end, the one end of drain pipe (5) and the inside intercommunication of lower liquid passageway (7), and the inner wall and the outer wall of plug cap (3) are passed to the one end of drain pipe (5) extend outwards.

3. The artificial core pressing and evaluating integrated mechanism according to claim 2, characterized in that: the inside of lower liquid passageway (7) is equipped with circular valve plate (8) that is the level and sets up, and the outer lane of circular valve plate (8) is equipped with can slide and sealing washer (9) of laminating with lower liquid passageway (7) inner wall, and the upper surface of circular valve plate (8) can flush with the upper surface of baffle (6).

4. The artificial core pressing and evaluating integrated mechanism according to claim 3, characterized in that: the improved rotary valve is characterized in that a screw rod (10) is arranged below the circular valve plate (8), a threaded sleeve (11) is arranged at the center of the bottom of the plug cap (3), the lower end of the screw rod (10) penetrates through the inner ring of the threaded sleeve and extends towards the lower portion of the plug cap (3), the top of the screw rod (10) can be rotatably inserted into the center of the bottom of the circular valve plate (8), and a knob (12) is arranged at the extending end of the bottom of the screw rod (10).

5. The artificial core pressing and evaluating integrated mechanism according to claim 4, characterized in that: and a second thread (13) is arranged on the outer wall of the extending end of the liquid outlet pipe (5).

6. The artificial core pressing and evaluating integrated mechanism according to claim 5, characterized in that: the inner sleeve (2) is made of rubber.

7. The artificial core pressing and evaluating integrated mechanism according to claim 6, characterized in that: the inner sleeve (2) protrudes out of the surface of the inner side wall of the outer sleeve, and the upper end of the inner sleeve (2) is provided with a chamfer (14).