A vibrator plate capable of monitoring vibration output in real time

Abstract

The present invention relates to a controllable seismic source vibrator plate that can monitor vibration output in real time, which solves the problems of large deformation, uneven contact force distribution and low vibration output accuracy in existing vibrator plates. It is mainly composed of a cover plate, a support arch, a baffle, a constraint plate, a force sensor and a base plate. The cover plate is a right-angled rectangle, the cover plate is located at the top, the constraint plate is located below the cover plate, and the base plate is located below the constraint plate; the main support arch is an arch structure and is welded between the cover plate and the constraint plate; the constraint plate and the base plate are connected in the form of a slide groove; the baffle is located at the opening of the slide groove and is connected to the constraint plate by bolts; the force sensor is located between the base plate and the constraint plate and is fixed below the constraint plate. The present invention reduces the deformation of the plate, effectively improves the uneven distribution of contact force between the vibrator plate and the earth, realizes real-time monitoring of vibration output, provides accurate feedback signals for high-precision excitation of the controllable seismic source, and can improve the resolution of seismic data.

Description

Technical Field

[0001] The invention relates to a vibrator plate with a controllable source for geological exploration and capable of monitoring vibration output in real time, belonging to a vibrator component. Background Art

[0002] As the demand for oil and natural gas continues to increase, the requirements for seismic exploration technology are also increasing accordingly. In order to obtain more accurate exploration information and conduct exploration in deeper strata, there is an urgent need to improve the level of exploration equipment. A controllable vibrator is an artificial seismic source with low energy and long-duration vibration. Its excitation frequency and amplitude are controllable, making it suitable for exploration areas such as deserts, pebble areas, and urban areas where wells are difficult to drill. At present, the vibrator plate of a controllable vibrator generally adopts an I-beam structure, and this structural plate has two major technical problems during operation. First, the plate has large deformation, resulting in a large decoupling during its coupling with the earth, causing excessive interference signals and reducing the resolution of seismic data. Second, the vibration output calculated using the weighted sum method has low accuracy and cannot meet the requirements of high-precision excitation of the controllable vibrator. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems of large deformation and low vibration output calculation accuracy of existing vibrator plates, and to provide a controllable source vibrator plate that can monitor vibration output in real time.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a controllable source vibrator plate that can monitor vibration output in real time, which is composed of a cover plate, a support arch, an air spring pad, a column pad, a constraint plate, a base plate, a weight pad, a force sensor, a baffle, and baffle fixing bolts. Its characteristics are: the cover plate is a right-angled rectangle, the base plate is an inverted "J"-shaped plate, the cover plate is located at the top, the constraint plate is located below the cover plate, and the base plate is located below the constraint plate; the support arch is an arch structure, the four support arches are adjacently distributed, and the two ends are welded to the lower surface of the cover plate, and the middle part of the support arch is a raised platform and welded to the upper surface of the constraint plate; a slide groove is provided on the constraint plate, and the base plate can slide from the front of the constraint plate through the slide groove to the bottom of the constraint plate; the baffle is then installed on the constraint plate through the baffle fixing bolts, which can constrain the movement of the base plate in the left and right and front and back directions; there are 6- There is a gap of 10mm to ensure that the constraint plate can move in the up and down directions; 12 force sensors are distributed between the base plate and the constraint plate and fixed on the lower surface of the constraint plate, and are respectively installed directly under the four support arches, and three force sensors are evenly installed directly under each support arch in the front-to-back direction; the force sensors are not fixed to the base plate, but there is a gap of 1 to 5 mm; holes are opened in the middle of the cover plate, the two middle support arches, the constraint plate and the base plate; two weight pads and one air spring pad are welded on the left and right sides of the upper surface of the cover plate; with the center of the cover plate as the axis, four column pads are evenly arranged and welded.

[0005] The beneficial effects of the present invention are: 1. The arch structure is adopted to evenly transmit the force transmitted from the vibrator column to the flat plate, reducing the deformation of the flat plate and effectively improving the uneven distribution of the contact force between the vibrator flat plate and the ground; 2. A force sensor is installed under the supporting arch to monitor the vibration output in real time and provide accurate feedback signals for high-precision excitation of the controllable seismic source. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is an isometric view of a vibrator plate of a controllable source for monitoring vibration output in real time according to the present invention.

[0007] Figure 2 yes Figure 1 AA cross-sectional view.

[0008] In the figure: 1. cover plate, 2. support arch, 3. air spring pad, 4. baffle, 5. column pad, 6. restraint plate, 7. bottom plate, 8. weight pad, 9. force sensor, 10. baffle fixing bolt. DETAILED DESCRIPTION

[0009] The present invention will be further described below with reference to the accompanying drawings and examples.

[0010] like Figure 1 、 Figure 2 As shown, the controllable source vibrator plate capable of monitoring vibration output in real time of the present invention is composed of a cover plate 1, a support arch 2, an air spring pad 3, a baffle 4, a column pad 5, a constraint plate 6, a base plate 7, a weight pad 8, a force sensor 9, and a baffle fixing bolt 10. The cover plate 1 is a right-angled rectangle, and the base plate 7 is an inverted "F"-shaped plate. The cover plate 1 is located at the top, the constraint plate 6 is located below the cover plate, and the base plate 7 is located below the constraint plate; the support arch 2 is an arch structure, and the four support arches 2 are adjacently distributed, and the two ends are welded to the lower surface of the cover plate 1. The middle part of the support arch 2 is a raised platform and is welded to the upper surface of the constraint plate 6; a slide groove is provided on the constraint plate 6, and the base plate 7 can slide from the front of the constraint plate 6 into the constraint plate 6 through the slide groove; the baffle 4 is then installed on the constraint plate 6 by the baffle fixing bolt 10, which can be approximately Constrain the movement of the bottom plate 7 in the left and right and front and back directions; there is a gap of 6-10mm between the upper surface of the left and right ends of the bottom plate 7 and the lower surface of the constraint plate 6, so as to ensure that the constraint plate 6 can move in the up and down directions; 12 force sensors 9 are distributed between the bottom plate 7 and the constraint plate 6 and fixed on the lower surface of the constraint plate 6, and are respectively installed directly under the four support arches 2, and three force sensors 9 are evenly installed directly under each support arch 2 in the front and back directions; the force sensors 9 are not fixedly connected to the bottom plate 7, but there is a gap of 1 to 5 mm; holes are opened in the middle of the cover plate 1, the two middle support arches 2, the constraint plate 6 and the bottom plate 7; two weight pads 8 and one air spring pad 3 are welded on the left and right sides of the upper surface of the cover plate 1; with the center of the cover plate 1 as the axis, four column pads 5 are evenly arranged and welded.

Claims

1. A vibrator plate capable of monitoring vibration output in real time, comprising a cover plate (1), a support arch (2), an air spring pad (3), a baffle (4), a column pad (5), a restraining plate (6), a bottom plate (7), a weight pad (8), a force sensor (9), and baffle fixing bolts (10), and characterized by: The cover plate (1) is a right-angled rectangle, the bottom plate (7) is an inverted "F"-shaped plate, the cover plate (1) is located at the top, the constraint plate (6) is located below the cover plate (1), and the bottom plate (7) is located below the constraint plate (6); The supporting arch (2) is an arch structure, and the four supporting arches (2) are adjacently distributed, with both ends welded to the lower surface of the cover plate (1), and the middle part of the supporting arch (2) is a raised platform welded to the upper surface of the restraining plate (6); The restraining plate (6) is provided with a slide groove, and the bottom plate (7) can slide from the front of the restraining plate (6) into the bottom of the restraining plate (6) through the slide groove; the baffle plate (4) is then installed on the restraining plate (6) through the baffle plate fixing bolt (10), which can restrain the movement of the bottom plate (7) in the left and right and front and back directions; Twelve force sensors (9) are distributed between the base plate (7) and the constraint plate (6) and fixed on the lower surface of the constraint plate (6), and are respectively installed directly below the four support arches (2); The gap between the force sensor (9) and the bottom plate (7) is 1-5 mm, and three force sensors (9) are evenly installed in the front-to-back direction directly below each support arch (2); Holes are provided in the middle of the cover plate (1), the two middle support arches (2), the restraining plate (6) and the bottom plate (7); Two weight pads (8) and one air spring pad (3) are welded on the left and right sides of the upper surface of the cover plate (1); With the center of the cover plate (1) as the axis, four column pads (5) are evenly arranged and welded.

2. The vibrator plate capable of real-time monitoring of vibration output according to claim 1, characterized in that: The restraining plate (6) is provided with a slide groove, and the bottom plate (7) can slide from the front of the restraining plate (6) into the bottom of the restraining plate (6) through the slide groove; the baffle plate (4) is then installed on the restraining plate (6) through the baffle plate fixing bolt (10), which can restrain the movement of the bottom plate (7) in the left and right and front and back directions; There is a gap of 6-10 mm between the upper surfaces of the left and right ends of the bottom plate (7) and the lower surface of the restraining plate (6), thereby ensuring that the restraining plate (6) can move in the up and down directions.

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