CN214471939U

CN214471939U - Sampling device for drilling mud and rock debris

Info

Publication number: CN214471939U
Application number: CN202120225243.0U
Authority: CN
Inventors: 黄博; 郝伟劲; 饶万雄; 吴定云; 李超钧; 王健
Original assignee: Gongxian Dadi Environmental Protection Technology Co ltd
Current assignee: Gongxian Dadi Environmental Protection Technology Co ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-10-22
Anticipated expiration: 2031-01-26

Abstract

The utility model discloses a sampling device for drilling mud rock scraps, which comprises a sampling tube and a rotary propulsion component, wherein the sampling tube is provided with a piston cavity with an opening at one end, a sampling head communicated with the piston cavity is fixed at the opening end of the sampling tube, the rotary propulsion component is arranged in the piston cavity and comprises a fixed seat, propulsion rod and lead screw, the fixed fixing base of wearing to be equipped with of piston chamber open-ended one end is kept away from to the fixing base, the one end of fixing base extends to the piston intracavity and has seted up the rectangle chamber, the lead screw is located the rectangle intracavity and rotates with the fixing base to be connected, the lead screw is on a parallel with the axis setting of sampling tube, propulsion rod slidable sets up in the rectangle intracavity and with lead screw threaded connection, the cross-section of propulsion rod contacts for the outer wall of rectangle and propulsion rod and the inner wall in rectangle chamber, the one end that the fixing base was kept away from to the propulsion rod is fixed with the piston, the outer wall of piston contacts with the inside of sampling tube. The situation that the piston moves due to external influence is avoided, and the sampling effect is improved.

Description

Sampling device for drilling mud and rock debris

Technical Field

The utility model relates to a detritus sampling technical field specifically is a drilling mud sampling device for detritus.

Background

The shale gas development is a hot spot concerned in the current world energy field, the geological dessert of the shale gas can be judged quickly and timely by utilizing the isotope fractionation phenomenon of the shale gas, and the technology has the characteristics of quickness, high efficiency and accuracy and gradually becomes the front edge of shale gas exploration and research. Shale gas can be gradually released from shale debris reversely discharged along with circulation of drilling mud, the shale gas is taken out and placed in a sealed tank body, and then the shale gas released from the shale debris is extracted by a sampling needle to perform isotope analysis. The sample process is to take over and transfer to the sealed jar body from the shale shaker with the contrary discharge of well drilling mud circulation, and current sampling needle all is sharp pulling piston rod, piston in driving the sampling needle through the piston rod reciprocates, thereby realize sample or row appearance process, but this sampling needle receives external pressure easily and takes place the condition that the piston removed, for example when the sample is accomplished, carry out the in-process that shifts the detritus, when the tip of piston rod receives the collision, produce the power along the sampling needle axis, thereby lead to the piston rod to drive the condition of piston displacement, and then lead to the mud detritus in the sampling needle to receive the piston extrusion and discharge, thereby influence the sample effect of sampling needle.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a drilling mud is sampling device for detritus, avoided the piston to receive external influence and the condition that removes, improved the sample effect.

The purpose of the utility model is realized through the following technical scheme: a sampling device for drilling mud and rock debris comprises a sampling tube and a rotary propelling component, wherein the sampling tube is provided with a piston cavity with an opening at one end, a sampling head communicated with the piston cavity is fixed at the opening end of the sampling tube, and the rotary propelling component is arranged in the piston cavity;

rotatory propulsion subassembly includes fixing base, impulse lever and lead screw, the fixing base is kept away from piston chamber open-ended one end is fixed to be worn to be equipped with the fixing base, the one end of fixing base extends to the piston intracavity has seted up the rectangle chamber, the lead screw is located the rectangle intracavity and with the fixing base rotates to be connected, the lead screw is on a parallel with the axis setting of sampling tube, impulse lever slidable sets up the rectangle intracavity and with lead screw threaded connection, the cross-section of impulse lever contacts for the outer wall of rectangle and impulse lever and the inner wall in rectangle chamber, the impulse lever is kept away from the one end of fixing base is fixed with the piston, the outer wall of piston with the inside of sampling tube contacts.

Furthermore, a connecting rod is fixed at one end, away from the pushing rod, of the screw rod, a rotary disc is fixed at one end, away from the screw rod, of the connecting rod, and a limiting assembly is arranged on the rotary disc and used for limiting the screw rod to rotate.

Further, spacing subassembly is adjusting bolt, adjusting bolt and carousel threaded connection, the fixing base is kept away from the one end of pushing ram seted up a plurality ofly with adjusting bolt looks adaptation's circular recess, it is a plurality of the circular recess is the circumference equipartition, the circular recess is located adjusting bolt's removal route is last.

Furthermore, the edge of the rotary disc is detachably provided with a connecting rod, and one end, far away from the rotary disc, of the connecting rod is fixedly provided with a plugging block for plugging the opening of the piston cavity.

Further, the connecting rod and the rotary table are in threaded connection.

Further, an inner threaded hole is formed in one end, far away from the connecting rod, of the blocking block, an outer wall of the sampling head is provided with an outer thread, and the sampling head is arranged in the inner threaded hole and connected with the blocking block in a threaded mode.

The utility model has the advantages that:

1. the utility model provides a well drilling mud sampling device for rock bits, during the sample, install the connecting rod on the carousel, be convenient for manually rotate the carousel through the connecting rod, the carousel drives the lead screw and rotates, the contact through impulse shaft outer wall and rectangle intracavity wall is spacing to the rotational degree of freedom of impulse shaft, make the impulse shaft drive the piston along the axis direction of lead screw and remove, make the piston rebound with the inner space in increase piston chamber, make mud rock bits enter into the piston intracavity and accomplish the sample process, the removal that makes the piston can only be realized by rotatory carousel, thereby avoided the carousel to receive the extrusion and driven the condition that the piston mistake removed, thereby the loss of mud rock bits has been avoided, the stable transportation of sample has been guaranteed, the sampling effect has been improved.

2. After the sample was accomplished, rotate adjusting bolt, it is that adjusting bolt stretches into a circular recess to carry on spacingly to the rotational degree of freedom of carousel, further the mistake of having avoided the piston removes, has improved the effect of sample.

3. Connecting rod detachable connects on the carousel, installs the connecting rod on the carousel when the sample, and the manual carousel of rotating of being convenient for takes off the connecting rod after the sample is accomplished, with the sprue one end threaded connection of connecting rod on the sample head to the effectual opening of having avoided mud detritus from the sample head that spills guarantees that the sample is difficult for running off, and the connecting rod has multiple use simultaneously, has reduced sampling device's structure.

Drawings

FIG. 1 is a perspective view of a sampling device for drilling mud and rock debris in accordance with the present invention;

FIG. 2 is a schematic view of the internal structure of a sampling device for drilling mud and rock debris according to the present invention;

FIG. 3 is a front view of a sampling device for drilling mud and rock debris in accordance with the present invention;

in the figure, 1-sampling tube, 2-piston cavity, 3-fixing seat, 4-pushing rod, 5-screw rod, 6-rectangular cavity, 7-piston, 8-connecting rod, 9-rotating disk, 10-adjusting bolt, 11-circular groove, 12-connecting rod, 13-block and 14-sampling head.

Detailed Description

The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.

As shown in fig. 1 to 3, a sampling device for drilling mud rock crumbs comprises a sampling tube 1 and a rotary propulsion assembly, wherein the sampling tube 1 is provided with a piston cavity 2 with an opening at one end, a sampling head 14 communicated with the piston cavity 2 is fixed at the opening end of the sampling tube 1, the rotary propulsion assembly is arranged in the piston cavity 2 and comprises a fixed seat 3, a propulsion rod 4 and a screw rod 5, the fixed seat 3 is fixedly penetrated at the end, away from the opening of the piston cavity 2, of the fixed seat 3, one end of the fixed seat 3 extends into the piston cavity 2 and is provided with a rectangular cavity 6, the screw rod 5 is positioned in the rectangular cavity 6 and is rotatably connected with the fixed seat 3, the screw rod 5 is arranged parallel to the axis of the sampling tube 1, the propulsion rod 4 is slidably arranged in the rectangular cavity 6 and is in threaded connection with the screw rod 5, the section of the propulsion rod 4 is rectangular, the outer wall of the propulsion rod 4 is contacted with the inner wall of the rectangular cavity 6, the sections of the propulsion rod 4 and the rectangular cavity 6 are rectangular cavities, realize spacing to the rotatory degree of freedom of ejector pin 4 through the rectangle adaptation, make ejector pin 4, lead screw 5 and fixing base 3 form screw nut pair, change the rotation of lead screw 5 into the rectilinear movement of ejector pin 4, the one end that fixing base 3 was kept away from to ejector pin 4 is fixed with piston 7, the outer wall of piston 7 contacts with the inside of sampling tube 1, the one end that ejector pin 4 was kept away from to lead screw 5 is fixed with connecting rod 8, the one end that lead screw 5 was kept away from to connecting rod 8 is fixed with carousel 9, be provided with spacing subassembly on the carousel 9, spacing subassembly is used for restricting 5 rotations of lead screw. During the sample, install connecting rod 12 on carousel 9, be convenient for manually rotate carousel 9 through connecting rod 12, carousel 9 drives lead screw 5 and rotates, contact through 4 outer walls of push rod and 6 inner walls of rectangular cavity is spacing to push rod 4's rotational degree of freedom, make push rod 4 drive piston 7 along the axis direction of lead screw 5 and remove, make piston 7 rebound with the inner space of increase piston chamber 2, make mud detritus enter into piston chamber 2 and accomplish the sample process, make piston 7's removal can only rotate the carousel and just can realize, thereby avoided the carousel to receive the extrusion and drive the condition that the piston mistake removed, thereby the loss of mud detritus has been avoided, the steady transportation of sample has been guaranteed, the sampling effect has been improved.

Above-mentioned scheme has restricted piston 7's mistake to a great extent and has removed, has avoided external collision, nevertheless leaves the incasement or when transporting in the pocket, can cause the rotation of carousel 9 when carousel 9 receives the friction to the loss of mud detritus appears, this application increases spacing subassembly in above-mentioned scheme and rotates in order to avoid the mistake of carousel 9, and concrete real-time mode is as follows:

further, as shown in fig. 1, the limiting component is an adjusting bolt 10, the adjusting bolt 10 is in threaded connection with the rotary table 9, one end of the fixing seat 3, which is far away from the pushing rod 4, is provided with a plurality of circular grooves 11 which are matched with the adjusting bolt 10, the circular grooves 11 are circumferentially and uniformly distributed, and the circular grooves 11 are located on a moving path of the adjusting bolt 10. After the sample is accomplished, rotate adjusting bolt 10, it is that adjusting bolt 10 stretches into to a circular recess 11 in to carry on spacingly to the rotational degree of freedom of carousel 9, further the mistake of having avoided piston 7 removes, has improved the effect of sample.

Further, carousel 9's marginal detachable is provided with connecting rod 12, and connecting rod 12 keeps away from the one end of carousel 9 and is fixed with the sprue 13 that is used for carrying out the shutoff to 2 openings in piston chamber, and connecting rod 12 adopts threaded connection with carousel 9, and the internal thread hole has been seted up to the one end that connecting rod 12 was kept away from to sprue 13, and the outer wall of sample head 14 is equipped with the external screw thread, and sample head 14 arranges in the internal thread hole and with sprue 13 threaded connection. Connecting rod 12 detachable connects on carousel 9, install connecting rod 12 on carousel 9 when the sample, the manual carousel 9 that rotates of being convenient for, take off connecting rod 12 after the sample is accomplished, with 13 one end threaded connection of sprue of connecting rod 12 on sample head 14 to the effectual mud detritus of having avoided spills from the opening of sample head, guarantee that the sample is difficult for running off, connecting rod 12 has multiple use simultaneously, has reduced sampling device's structure.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. The sampling device for drilling mud and rock debris is characterized by comprising a sampling tube (1) and a rotary propelling component, wherein the sampling tube (1) is provided with a piston cavity (2) with an opening at one end, a sampling head (14) communicated with the piston cavity (2) is fixed at the opening end of the sampling tube (1), and the rotary propelling component is arranged in the piston cavity (2);

the rotary propelling component comprises a fixing seat (3), a propelling rod (4) and a screw rod (5), wherein the fixing seat (3) is far away from one end of an opening of a piston cavity (2) and fixedly provided with the fixing seat (3), one end of the fixing seat (3) extends into the piston cavity (2) and is provided with a rectangular cavity (6), the screw rod (5) is positioned in the rectangular cavity (6) and is rotatably connected with the fixing seat (3), the screw rod (5) is parallel to the axis of the sampling tube (1), the propelling rod (4) is slidably arranged in the rectangular cavity (6) and is in threaded connection with the screw rod (5), the section of the propelling rod (4) is rectangular, the outer wall of the propelling rod (4) is in contact with the inner wall of the rectangular cavity (6), one end of the propelling rod (4) far away from the fixing seat (3) is fixedly provided with a piston (7), the outer wall of the piston (7) is in contact with the interior of the sampling tube (1).

2. The sampling device for drilling mud and rock debris as claimed in claim 1, wherein a connecting rod (8) is fixed at one end of the screw rod (5) far away from the propelling rod (4), a rotary table (9) is fixed at one end of the connecting rod (8) far away from the screw rod (5), and a limiting assembly is arranged on the rotary table (9) and used for limiting the rotation of the screw rod (5).

3. The sampling device for drilling mud and rock debris according to claim 2, wherein the limiting component is an adjusting bolt (10), the adjusting bolt (10) is in threaded connection with the rotary table (9), one end of the fixing seat (3) far away from the push rod (4) is provided with a plurality of circular grooves (11) matched with the adjusting bolt (10), the circular grooves (11) are uniformly distributed in the circumferential direction, and the circular grooves (11) are located on the moving path of the adjusting bolt (10).

4. A sampling device for drilling mud and debris according to claim 2, characterized in that a connecting rod (12) is detachably arranged at the edge of the rotary disc (9), and a plug (13) for plugging the opening of the piston chamber (2) is fixed at one end of the connecting rod (12) far away from the rotary disc (9).

5. A sampling device for drilling mud cuttings as claimed in claim 4, characterized in that said connecting rod (12) is screwed to said rotary table (9).

6. The sampling device for drilling mud and rock debris as claimed in claim 4, wherein an internal threaded hole is formed in one end of the block (13) far away from the connecting rod (12), an external thread is formed on the outer wall of the sampling head (14), and the sampling head (14) is arranged in the internal threaded hole and is in threaded connection with the block (13).