在线一本码道高清

Core manufacturing device capable of simulating inclined stratum, method and process

发布日期:2020-01-07 13:12 Document serial number: 19641814 Release date: 2020-01-07 13:12
Core manufacturing device capable of simulating inclined stratum, method and process

The invention relates to the related field of rock mechanics in petroleum engineering, in particular to a core manufacturing device and method capable of simulating inclined strata.



Background technique:

The study of the influence of stratum dip angle on rock mechanics characteristics is an important subject. However, due to the particularity and complexity of the stratigraphic environment, as well as difficult and expensive field measurements, it is difficult to comprehensively analyze the influence of stratum dip angle on rock mechanics characteristics. In the core mechanics test, there is no core capable of simulating inclined formations for use, and it is difficult to draw the influence of formation dip angle on rock mechanics.

In order to solve the above problems, the device improves the existing core processing and manufacturing equipment, so that it can process ordinary cores that meet the daily experiments of students, and cores that can simulate inclined formations for scholars to study the influence of rock formation inclination on rock mechanical characteristics.



Technical realization elements:

The problem to be solved by the present invention is to provide a core making device and method capable of processing and making a simulated sloping formation, in view of the deficiency that the existing core making device cannot process a core capable of simulating the sloping formation.

To meet the above objectives, the present invention adopts the following technical solutions:

A core making device capable of simulating inclined strata, characterized in that the device includes a wedge-shaped combined mold, a vibration base, a controllable compaction system, and a computer monitoring system;

The wedge-shaped combined mold is composed of a first-stage mold, a second-stage mold, a third-stage mold, a fourth-stage mold, and an edge positioning pin;

The vibration base is composed of a base plate, a supporting leg and a vibration motor;

The controllable compaction system is composed of a lifting bracket, a pressure output device, a pressure rod, a pressure plate, and a pressure sensor;

The computer monitoring system is composed of a computer and a cable.

The wedge-shaped combined mold according to the present invention is assembled from the first mold, the second mold, the third mold, and the fourth mold from bottom to top. Each mold is an oblique hollow cylinder and the inner and outer diameters are the same. The molds of each level are fixedly connected by edge positioning pins, and the edge positioning pins are fixed at 90 degrees to each other at the connection points of the molds of each level.

The lower end of the first-stage mold according to the present invention is fixed to the base by bolts, the upper surface of the first-stage mold forms a certain angle with the horizontal plane, the connection surface between the first-stage mold and the second-stage mold, the second-stage mold and the first-stage mold. The connecting surface of the third level, the connecting surface of the third level mold and the fourth level mold all form a certain angle with the horizontal plane, and the included angle can simulate the inclination of the real rock formation.

The core making device capable of simulating inclined strata according to the present invention is characterized in that the lower end of the liftable bracket is fixed to the base by bolts, the pressure output device is fixed to the upper end of the liftable bracket, and the pressure output device. The pressure rod is connected to the pressure plate, and the surface of the pressure rod is affixed with a pressure sensing piece, and the diameter of the pressure plate is equal to the inner diameter of the wedge-shaped mold.

The core making device capable of simulating inclined strata according to the present invention is characterized in that the base plate is supported by four mutually perpendicular support feet, the vibration motor is fixed at the center of the lower end of the base plate, and the vibration intensity of the vibration motor can be adjusted.

The core making device capable of simulating inclined strata according to the present invention is characterized in that the computer can control the vibration intensity of the vibration motor and the output pressure of the pressure output device through a cable, and can be controlled and monitored at any time during the operation of the device. Device health.

A method for processing a core capable of simulating inclined strata by using the device of the present invention includes the following steps:

Step 1: Weigh the filling materials required for the first-stage mold according to the proportion, stir well, and prepare the filling materials required for the second-stage mold, the third-stage mold, and the fourth-stage mold in turn according to the first-stage steps;

Step 2: Fill the prepared first-stage mold filling material into the first-stage mold. After filling, use a scraper to scrape the filling surface along the cross-section. Start the vibration motor to evenly and compact the filling material and let it stand for a while. , Add adhesive to the surface of the filling material of the first-stage mold to facilitate the connection between the filling materials of the various levels, and fix the second-stage mold to the first-stage mold with positioning pins, and continue the second-stage mold. Filling, the filling method is similar to the first-level mold, and the third-level mold and the fourth-level mold are filled in sequence according to the above steps, until all the molds are filled;

Step 3: Start the vibration motor to compact the filling material in the mold, and then start the pressure output device to press the assembled mold through the pressure plate. The pressure can be adjusted by the pressure monitor and unloaded after 2-3 days. Pressure

Step 4: After the pressure is released, let it stand for 24 hours, remove the positioning pins from top to bottom, remove the molds in sequence, and take out the prepared core for experimental research.

The invention has the following advantages:

(1) Compared with the previous technical solutions, the device is simple to operate, and can be used to make ordinary cores and cores that can simulate inclined strata.

(2) The output pressure of the pressure output device of the device can be adjusted and controlled by the pressure monitor, which can monitor the pressure in real time to avoid the output pressure being too large or too small.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of the device structure and composition of the present invention.

FIG. 2 is an assembly schematic diagram of the wedge-shaped combined mold of the present invention.

FIG. 3 is a partially enlarged view of a positioning pin of the present invention.

Fig. 4 is a plan view of a mold according to the present invention.

Fig. 5 is a schematic diagram of the core formation simulated by the present invention.

FIG. 6 is a core effect diagram of a simulated sloping formation processed by the present invention.

detailed description

In order to have a clear understanding of the technical features, objects, and effects of the present invention, specific embodiments of the present invention will now be described with reference to the drawings.

A core making device capable of simulating inclined strata, as shown in FIG. 1, the device includes a wedge-shaped combined mold, a vibration base, a controllable compaction system, and a computer monitoring system;

As shown in FIG. 2, the wedge-shaped combination mold includes a first-stage mold (5), a second-stage mold (6), a third-stage mold (7), a fourth-stage mold (8), and an edge positioning pin (13). ) Composition;

The vibration base is composed of a base plate (4), support feet (1) and a vibration motor (2);

The controllable compaction system is composed of a lifting bracket (16), a pressure rod (10), a pressure output device (11), a pressure plate (9) and a pressure sensor (12);

The computer monitoring system is composed of a computer (15) and a cable (14).

As shown in FIG. 3, the wedge-shaped combination mold is assembled from bottom to top by a first mold (5), a second mold (6), a third mold (7), and a fourth mold (8). Each mold is an oblique hollow cylinder with the same inside and outside diameters. The molds at all levels are fixedly connected by edge positioning pins (13), and the edge positioning pins (13) are fixed at 90 ° to each other at the connection points of the molds.

In the wedge-shaped combination mold, the lower end of the first-stage mold (5) is fixed to the base plate (4) by bolts (3), the first-stage mold (5), the second-stage mold (6), and the third-stage mold (7). ) And the wedge-shaped surface of the fourth-level mold are at a certain angle with the horizontal plane, as shown in Figure 5. Taking the first-level mold as an example, the intersection of the mold wedge-shaped surface and the horizontal plane is the stratum line ab, and the direction of the line is vertical. The rays drawn from the downward direction of the connecting surface are the inclined line od. The azimuth indicated by the projected line of the inclined line on the horizontal plane is called the rock formation tendency. The angle between the wedge surface and the horizontal plane is the formation inclination angle α1.

The lower end of the liftable bracket (16) is fixed to the base plate (4) by bolts, the pressure output device (11) is fixed to the upper end of the liftable bracket (16), and the pressure output device is connected with the pressure rod (10) and The pressure plate (9) is connected, and a pressure sensor (12) is attached to the surface of the pressure rod (10). The pressure sensor can measure the output pressure. The diameter of the pressure plate (9) is equal to the inner diameter of the wedge-shaped mold.

The base plate (4) is supported by four mutually perpendicular supporting feet (1), the vibration motor (2) is fixed at the center of the lower end of the base plate (4), and the vibration intensity of the vibration motor (2) can be adjusted.

The described core making device capable of simulating inclined strata is characterized in that the computer (15) can control and monitor the output pressure of the pressure output device (11) through the cable (14), and can be used at any time during the operation of the device. Control and monitor the operation of the device.

A method for processing a core capable of simulating inclined strata by using the device of the present invention includes the following steps:

Step 1: Weigh the filling materials required for the first-stage mold according to the proportion, stir well, and prepare the filling materials required for the second-stage mold, the third-stage mold, and the fourth-stage mold in turn according to the first-stage steps;

Step 2: Fill the prepared first-stage mold filling material into the first-stage mold (5). After filling, use a scraper to scrape the filling surface along the section. Start the vibration motor (2) to shake the filling material evenly and Compact and let stand for 1 hour, add adhesive to the surface of the filling material of the first-stage mold (5), so that the connection between the filling materials of each stage is more tight. Use the positioning pin of the second-stage mold (6). (13) Fix it to the first-level mold (5), and continue to fill the second-level mold (6). The filling method is similar to the first-level mold (5). Fill the third-level mold (7) and the Four-level mold (8), until all mold levels are filled;

Step 3: Start the vibration motor (2) to compact the filling material in the mold, and then start the pressure output device (11). The pressure output device presses the core material assembled in the mold through the pressure plate (9). It can be adjusted by the computer (15), and the pressure is released after 2-3 days of loading; after the pressure is released, the device is left for 24 hours, the positioning pins (14) are disassembled from top to bottom, the mold is disassembled, and the produced product is taken out. The core of the sloping stratum is simulated. The core effect diagram is shown in Figure 6.

Know more
Current 1 Page 1 2 3
已有0条留言 There are 0 comments
  • No one has commented yet. Wonderful comments will be liked!
1