CN216485538U

CN216485538U - VSP seismic data gathers device of giving medicine to next life

Info

Publication number: CN216485538U
Application number: CN202122454786.2U
Authority: CN
Inventors: 闫有平; 谢欢; 陈辉; 王云朋; 刘胜; 王彦庭; 于冬梅; 马纪明; 顾春桥; 魏星
Original assignee: North China Branch Of Sinopec Petroleum Engineering Geophysics Co ltd; Sinopec Oilfield Service Corp; Sinopec Petroleum Engineering Geophysics Co Ltd
Current assignee: North China Branch Of Sinopec Petroleum Engineering Geophysics Co ltd; Sinopec Oilfield Service Corp; Sinopec Petroleum Engineering Geophysics Co Ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2022-05-10
Anticipated expiration: 2031-10-12

Abstract

The utility model provides a VSP seismic data acquisition and discharging device which comprises a flexible connecting piece and a gun rod, wherein one end of the flexible connecting piece is used for bundling and fixing the flexible connecting piece at the lower part of a seismic charge, and the other end of the flexible connecting piece is provided with a clamping ring structure; the bottom of the gun rod is provided with a clamping groove with a downward opening, and the clamping groove is used for clamping a clamping ring structure, so that the gun rod drives the seismic charge to move downwards through the flexible connecting piece. When the device is used, one end of the flexible connecting piece is tied and fixed on the lower portion of the seismic charge, then the clamping groove at the bottom of the gun rod is clamped with the clamping ring structure, and the gun rod is moved downwards to further pull the seismic charge to descend to a specified depth for excitation. Compared with the prior art, the VSP seismic data acquisition and feeding device provided by the utility model has the advantages that the seismic charge is pulled to move downwards by moving the gun rod downwards, and the flexible connecting piece is tied and fixed below the seismic charge, so that the seismic charge moves downwards almost vertically, the seismic charge is prevented from being inclined in an explosion cavity or being clamped at a well wall step, and the smooth descending of the seismic charge is ensured.

Description

VSP seismic data gathers device of giving medicine to next life

Technical Field

The utility model relates to the technical field of oil-gas seismic exploration, in particular to a VSP seismic data acquisition and drug delivery device.

Background

VSP, a vertical seismic profiling, is an observation method used for oil and gas seismic exploration. The VSP seismic data acquisition mode is as follows: firstly, a plurality of geophones form a geophone array and are placed in an observation well, each geophone in the geophone array is vertically spaced at a certain distance, then an artificial seismic source is excited in the shot well, the geophone array is observed section by section from the deepest part of the observation well, after one-time observation is finished, the geophone array rises for a certain distance, the artificial seismic source is excited once again, the geophone array is observed again, and the process is repeated until the measurement of the whole well section is finished.

In the VSP seismic data acquisition process, in order to ensure the quality of the VSP seismic data, an ideal excitation mode is that an artificial seismic source is excited for multiple times at the same depth of the same shot hole. The existing commonly used VSP seismic data acquisition and launching mode is that a manufactured seismic charge is firstly placed at the wellhead of a shot hole, the top of the seismic charge is provided with a detonator, the detonator is connected with a shot line, the shot line is long, an operator slightly lifts the shot line, then presses the top of the seismic charge with a gun rod, presses down the seismic charge and pushes the seismic charge to a specified depth, and manual seismic source excitation is carried out.

However, after the artificial seismic source is excited for the first time, as shown in fig. 1, an explosion cavity 2 is formed at the bottom of the shot hole 1, the seismic charge 6 loses the borehole wall track control when reaching the explosion cavity 2, and then is deflected in advance, the gun rod 5 is separated from the seismic charge 6, and the seismic charge 6 cannot continue to descend. In addition, as shown in fig. 2, the manual seismic source is excited for multiple times to impact the well wall of the shot hole 1, a well wall step 3 is formed on the well wall, and when the seismic charge 6 is clamped at the well wall step 3, the gun rod 5, the seismic charge 6 and the gun line 4 cannot go down because the gun rod 5 is arranged at the top of the seismic charge 6. Therefore, the method for launching the seismic charge is difficult to ensure that the seismic charge is excited for multiple times in the same depth of the same shot hole.

In addition, the mud in the shot hole becomes dense due to multiple times of excitation, the bottom area of the seismic charge is large, and the seismic charge is difficult to descend due to the adoption of the charge feeding mode; particularly, when the seismic charge is a mud-shaped emulsion explosive, the emulsion explosive is soft, so the seismic charge is difficult to move downwards under the pressing action of a gun rod and difficult to descend.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a VSP seismic data acquisition and feeding device, which solves the problem that seismic explosive columns are difficult to descend when meeting an explosion cavity or a well wall step due to the fact that a gun rod is adopted to press the seismic explosive columns in the prior art.

In order to achieve the purpose, the VSP seismic data acquisition and medicine feeding device adopts the following technical scheme:

the utility model provides a VSP seismic data gathers lower part of a prescription device, includes flexible connectors and gun pole, and flexible connectors's one end is used for tying up and fixes the lower part at the focus powder column, and flexible connectors's the other end is provided with the snap ring structure, and the gun pole bottom is provided with the draw-in groove that the opening is down, and the draw-in groove is used for blocking the snap ring structure to make the gun pole pass through flexible connectors and drive the focus powder column and remove downwards.

The beneficial effects of the above technical scheme are that: arranging a flexible connecting piece, wherein one end of the flexible connecting piece is tied up and fixed below the seismic charge, and the other end of the flexible connecting piece is provided with a snap ring structure; the bottom of the gun rod is provided with a clamping groove with a downward opening, and the clamping groove is used for clamping a clamping ring structure, so that the gun rod drives the seismic charge to move downwards through the flexible connecting piece. When the VSP seismic data acquisition and feeding device is used, one end of the flexible connecting piece is firstly tied and fixed at the lower part of the seismic charge, then the clamping groove at the bottom of the gun rod is clamped with the clamping ring structure, and the gun rod is moved downwards to further pull the seismic charge to descend to the specified depth for excitation.

Compared with the prior art, the VSP seismic data acquisition and charge device disclosed by the utility model has the advantages that the gun rod is moved downwards, the gun rod pulls the seismic charge to move downwards through the snap ring structure, and the flexible connecting piece is tied and fixed below the seismic charge, so that the seismic charge is moved downwards almost vertically, the seismic charge is prevented from being inclined in an explosion cavity or being clamped at a well wall step, and the seismic charge is ensured to move downwards smoothly.

Furthermore, the gun barrel is formed by detachably connecting a plurality of gun barrel sections.

The beneficial effects of the above technical scheme are that: the gun pole is formed by multistage gun pole section releasable connection, and according to the degree of depth that the focus explosive column need move down during the operation, select the gun pole section of suitable quantity, make the focus explosive column move down to the appointed degree of depth, make things convenient for the use of gun pole and accomodate.

Furthermore, two adjacent gun rod sections are in threaded connection.

The beneficial effects of the above technical scheme are that: and two adjacent gun rod sections are in threaded connection, and the connection mode is simple and is connected and fastened.

Furthermore, two adjacent cannon pole sections are connected in a hanging mode, one of the two adjacent cannon pole sections is provided with a hanging head, and the other one of the two adjacent cannon pole sections is provided with a hanging groove.

The beneficial effects of the above technical scheme are that: two adjacent cannon pole sections are connected in a hanging mode, the connection mode is simple, and the operation is convenient.

Further, it is the step shaft form to hang the head, it includes big footpath section and the path section that links to each other with big footpath section to hang the head, the big gun rod section tip that is equipped with the hanging groove is provided with the end plate, it includes the cylindricality chamber to hang the groove, first notch and second notch, first notch setting passes through in order to supply big footpath section on the end plate, second notch and first notch intercommunication, the second notch sets up and passes through in order to supply the path section on the lateral wall of big gun rod section, the cylindricality chamber is located big gun rod section inside and with first notch and second notch intercommunication, the cylindricality chamber is used for holding big footpath section and supplies the rotatory back of big footpath section to articulate the cooperation with the end plate.

The beneficial effects of the above technical scheme are that: when adjacent big gun pole section is connected, the path section of the string head of one of them big gun pole section passes through the second notch of the string groove of another big gun pole section, and the major diameter section passes through first notch and gets into the cylindricality intracavity, and the major diameter section articulates the cooperation with the end plate after rotatory, realizes that two adjacent big gun pole sections articulate continuously, simple structure, connects reliably.

Furthermore, the clamping groove is in an inverted V shape.

The beneficial effects of the above technical scheme are that: the clamping groove is inverted V-shaped, so that the clamping groove and the clamping ring structure are conveniently connected.

Further, the gun barrel is an aluminum rod.

The beneficial effects of the above technical scheme are that: the gun rod is an aluminum rod, so that the weight is light and the operation is convenient.

Further, the gun barrel is a hollow rod.

The beneficial effects of the above technical scheme are that: the gun rod is a hollow rod, so that the material is saved, and the cost is low.

Furthermore, the snap ring structure is a ring formed by bundling flexible connecting pieces.

The beneficial effects of the above technical scheme are that: the snap ring structure is a ring formed by bundling flexible connecting pieces, and the snap ring structure is conveniently formed.

Further, the flexible connecting piece is a gun line.

The beneficial effects of the above technical scheme are that: the flexible connecting piece is the same as a gun line used for igniting the seismic charge, and materials are convenient to obtain.

Drawings

FIG. 1 is a schematic diagram of a state of the art in which a gun barrel and a seismic charge enter an explosive cavity;

FIG. 2 is a schematic diagram showing a state in which a gun rod and a seismic charge pass through a well wall step in the prior art;

in fig. 1-2: 1. a shot hole; 2. an explosive cavity; 3. a well wall step; 4. carrying out blasting line; 5. a gun barrel; 6. seismic charge;

FIG. 3 is a schematic view showing the connection state of the flexible connector and the seismic source explosive column of the VSP seismic data acquisition and feeding device of the utility model;

FIG. 4 is a schematic bottom view of a gun barrel of the VSP seismic data acquisition and loading device of the present invention;

FIG. 5 is a schematic view showing the usage of the VSP seismic data acquisition and dosing device of the present invention;

FIG. 6 is a schematic view showing the state where the VSP seismic data acquisition and discharge device and the seismic charge enter the explosion cavity in the present invention;

FIG. 7 is a schematic view of the state of the VSP seismic data acquisition and discharge device and seismic charge passing through a borehole wall step in the utility model.

In fig. 3-7: 1. a shot hole; 2. an explosive cavity; 3. a well wall step; 4. carrying out blasting line; 6. seismic charge; 7. a flexible connector; 7-1, a snap ring structure; 8. a gun barrel; 8-1 and a clamping groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The features and properties of the present invention are described in further detail below with reference to examples.

An embodiment of the VSP seismic data acquisition and dosing device (hereinafter referred to as dosing device) in the utility model is shown in fig. 3, and comprises a flexible connecting piece 7, wherein one end of the flexible connecting piece 7 is fixed on the lower part of a seismic charge 6 in a bundling manner, the other end of the flexible connecting piece 7 is provided with a snap ring structure 7-1, and the snap ring structure 7-1 is a ring formed by bundling the flexible connecting piece 7 for convenience of use. For convenience of material drawing, the flexible connecting piece 7 is the same as the shot line 4 connected with the top of the seismic charge 6, and the length of the flexible connecting piece 7 is 40 cm.

As shown in fig. 4 and 5, the explosive discharging device further comprises a gun barrel 8, a clamping groove 8-1 with a downward opening is formed in the bottom of the gun barrel 8, and the clamping groove 8-1 is used for clamping the clamping ring structure 7-1, so that the gun barrel 8 drives the seismic charge 6 to move downwards through the flexible connecting piece 7. Specifically, in order to adapt to different depths, the gun rod 8 is formed by detachably connecting a plurality of gun rod sections, both ends of each gun rod section are respectively provided with a threaded hole and a threaded section, and adjacent gun rod sections are in threaded connection through the threaded holes and the threaded sections; the clamping groove 8-1 is formed in the bottom of the first cannon rod section, when the cannon rod is used, a threaded hole or a threaded section of the first cannon rod section is removed, and then the clamping groove 8-1 is machined in the rod body of the cannon rod section. The clamping groove 8-1 is inverted V-shaped for convenient connection with the snap ring structure 7-1. In addition, for convenience of operation and reduction of the mass of the gun barrel 8, the gun barrel 8 is made of an aluminum hollow rod.

When the medicine feeding device is used, firstly, an operator ties up and fixes one end of the flexible connecting piece 7 at the lower part of the seismic charge 6, and then ties up the other end of the flexible connecting piece 7 to form a ring to form a clamping ring structure 7-1; secondly, an operator processes an inverted V-shaped clamping groove at the bottom of the first gun rod section; then, the operator lightly lifts the gun line 4 at the top of the seismic charge 6 and simultaneously clamps the snap ring structure 7-1 of the flexible connecting piece 7 through the inverted V-shaped clamping groove at the bottom of the first gun rod section, finally, the operator pulls the seismic charge 6 to move downwards in the gun well 1 by moving downwards the first gun rod section, and the seismic charge 6 moves downwards to a specified depth by sequentially connecting the second gun rod section, the third gun rod section and more gun rod sections.

Compared with the prior art, when the charging device is used, the gun rod 8 is moved downwards, the gun rod 8 pulls the seismic charge 6 to move downwards through the snap ring structure 7-1, and the flexible connecting piece 7 is tied and fixed below the seismic charge 6, so that the seismic charge moves downwards almost vertically, as shown in fig. 6, when the seismic charge 6 is placed into the explosion cavity 2, the seismic charge 6 is not easy to be inclined and separated from the gun rod 8, and the seismic charge 6 is ensured to smoothly move downwards in the explosion cavity 2; as shown in fig. 7, in the downward movement process, the seismic charge 6 is nearly vertical, so that the seismic charge 6 is not easily clamped at the well wall step 3, even if the seismic charge 6 is clamped at the well wall step 3, the seismic charge 6 can be separated from the well wall step 3 to continuously move downward by shaking the gun rod 8, the situation that the gun rod 8 and the seismic charge 6 cannot move downward is avoided, and the situation that the seismic charge 8 smoothly moves downward at the well wall step 3 is ensured. In addition, when the mud in the gun well 1 is dense, the bottom area of the gun rod 8 is small, so that the gun rod is easy to extend into the mud, and the seismic charge 6 is pulled to move downwards, so that the seismic charge 6 smoothly goes downwards; when the seismic explosive column 6 adopts the mud-shaped emulsion explosive, the gun rod 8 pulls the seismic explosive column 6 to move downwards through the snap ring structure 7-1, namely, the seismic explosive column 6 is pulled to move downwards in a traction mode, so that the seismic explosive column 6 smoothly goes downwards.

The second embodiment of the VSP seismic data acquisition and medicine feeding device is different from the first embodiment in that two adjacent gun rod sections are connected in a hanging mode.

Specifically, one of two adjacent cannon pole sections is provided with a hanging head, and the other is provided with a hanging groove. The hanging head is the step shaft form, the hanging head includes big footpath section and the path section that links to each other with big footpath section, the big gun pole section tip that is equipped with the hanging groove is provided with the end plate, the hanging groove includes the cylindricality chamber, first notch and second notch, first notch setting passes through in order to supply big footpath section on the end plate, second notch and first notch intercommunication, the second notch setting passes through in order to supply the path section on the lateral wall of big gun pole section, the cylindricality chamber is located big gun pole section inside and with first notch and second notch intercommunication, the cylindricality chamber is used for holding big footpath section and supplies the rotatory back of big footpath section and articulates the cooperation with the end plate.

When two adjacent gun pole sections are connected, at first, two gun pole sections are vertically arranged, the small diameter section of the hanging head of one gun pole section passes through the second notch of the hanging groove of the other gun pole section, so that the large diameter section of the hanging head radially enters the cylindrical cavity of the hanging groove through the first notch, then the large diameter section of the hanging head is rotated, at the moment, the large diameter section is in hanging fit with the end plate, two adjacent gun pole sections are hung and connected, the operation is convenient, and the adjacent gun pole sections are not easy to separate.

In other embodiments of the VSP seismic data acquisition and administration device, the flexible connectors are not gun lines, but are nylon ropes or ropes of other materials.

In other embodiments of the VSP seismic data acquisition and administration device, the snap ring structure is not a ring formed by bundling flexible connectors, but a metal ring is additionally arranged on the flexible connectors.

In other embodiments of the VSP seismic data acquisition launch device, the gun barrel is not a hollow rod, but a solid rod.

In other embodiments of the VSP seismic data acquisition and administration device, the gun barrel is not an aluminum barrel, but is a steel or other metal barrel.

In other embodiments of the VSP seismic data acquisition and administration device, the card slot is not an inverted V-shaped slot, but is a T-shaped slot or a U-shaped slot.

In other embodiments of the VSP seismic data acquisition and dosing device, the hanging head is not in a stepped shaft shape but is a dovetail protrusion, at the moment, the hanging groove is a dovetail groove, and the dovetail protrusion of one gun rod section is matched with the dovetail groove of the adjacent gun rod section to realize hanging connection between the two adjacent gun rod sections.

In other embodiments of the VSP seismic data acquisition and discharge device, the gun barrel is not formed by detachably and fixedly connecting a plurality of gun barrel sections, but is an integrated barrel, and at the moment, the downward movement distance of the seismic charge is limited.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.

Claims

1. The VSP seismic data acquisition and discharging device is characterized by comprising a flexible connecting piece (7) and a gun rod (8), wherein one end of the flexible connecting piece (7) is used for being tied up and fixed to the lower portion of a seismic source explosive column (6), a clamping ring structure (7-1) is arranged at the other end of the flexible connecting piece (7), a clamping groove (8-1) with a downward opening is formed in the bottom of the gun rod (8), and the clamping groove (8-1) is used for clamping the clamping ring structure (7-1) so that the gun rod (8) can drive the seismic source explosive column (6) to move downwards through the flexible connecting piece (7).

2. The VSP seismic data acquisition and deployment device of claim 1, wherein the barrel (8) is formed from a plurality of barrel segments that are releasably connected.

3. The VSP seismic data acquisition and downloading device of claim 2, wherein two adjacent gun barrel sections are connected by a screw thread.

4. The VSP seismic data acquisition and downloading device of claim 2, wherein two adjacent gun barrel sections are connected in a hanging manner, one of the two adjacent gun barrel sections is provided with a hanging head, and the other one of the two adjacent gun barrel sections is provided with a hanging groove.

5. The VSP seismic data acquisition and pill-dropping device according to claim 4, wherein the hanging head is in the shape of a stepped shaft, the hanging head comprises a large-diameter section and a small-diameter section connected with the large-diameter section, the end part of the gun barrel section provided with the hanging groove is provided with an end plate, the hanging groove comprises a cylindrical cavity, a first notch and a second notch, the first notch is arranged on the end plate and used for the large-diameter section to pass through, the second notch is communicated with the first notch, the second notch is arranged on the side wall of the gun barrel section and used for the small-diameter section to pass through, the cylindrical cavity is arranged inside the gun barrel section and is communicated with the first notch and the second notch, and the cylindrical cavity is used for accommodating the large-diameter section and used for the large-diameter section to be hung and matched with the end plate after rotating.

6. The VSP seismic data acquisition and downloading device according to any of claims 1-5, characterized in that the card slot (8-1) is in an inverted V shape.

7. The VSP seismic data acquisition and downloading device according to any of claims 1-5, characterized in that the gun barrel (8) is an aluminum barrel.

8. The VSP seismic data acquisition and downloading device according to any of claims 1-5, characterized in that the gun barrel (8) is a hollow barrel.

9. The VSP seismic data acquisition and administration device according to any of claims 1-5, characterized in that the snap ring structure (7-1) is a loop formed by bundling flexible connectors (7).

10. The VSP seismic data acquisition and downloading device according to any of claims 1-5, characterized in that the flexible connection (7) is a gun line.