CN216691072U

CN216691072U - Sample pumping and discharging device applied to logging-while-drilling instrument

Info

Publication number: CN216691072U
Application number: CN202122499052.6U
Authority: CN
Inventors: 穆重阳; 王守萌; 张晓鑫
Original assignee: Weihai Haina Marine Technology Co ltd
Current assignee: Weihai Haina Marine Technology Co ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-06-07
Anticipated expiration: 2031-10-18

Abstract

The utility model relates to the technical field of oil and gas exploration, in particular to a sample pumping and discharging device applied to a logging-while-drilling instrument, which improves the stability of the device in operation, can carry out depth adjustment on the device and is convenient for underground operation; the sample pumping and discharging device comprises a sample pumping and discharging device body and a threaded rod, wherein a protective shell is movably sleeved on the outer side of the sample pumping and discharging device body, a rectangular seat is sleeved on the top of the outer side of the protective shell, supporting components are detachably mounted on four sides of the outer end of the rectangular seat, a sealing cover is fixedly mounted on the top of the protective shell, an upper opening is formed in the top end of the sealing cover, a threaded pipe is rotatably arranged in the upper opening, and the bottom end of the threaded rod penetrates through the threaded pipe and extends into the protective shell and is rotatably connected with the top end of the sample pumping and discharging device body.

Description

Sample pumping and discharging device applied to logging-while-drilling instrument

Technical Field

The utility model relates to the technical field of oil and gas exploration, in particular to a sample pumping and discharging device applied to a logging-while-drilling instrument.

Background

It is well known that during downhole gas detection, logging-while-drilling tools require fluid in the wellbore to be drawn into a sample chamber inside the tool, which is depressurized to allow hydrocarbon gas dissolved in the fluid to evolve. After the detection system in the instrument has completed the hydrocarbon gas detection, the instrument also needs to drain the fluid back into the wellbore.

At present, a pumping module applied to a formation tester can pump fluid in a formation into an instrument and discharge the fluid to a borehole from the instrument, and a cylinder body in the existing sample pumping and discharging device is formed by combining a plunger cylinder and a piston cylinder, so that the pumped fluid can be depressurized in the plunger cylinder for subsequent detection. Meanwhile, a flow passage is arranged on the circumferential wall of the cylinder body so as to provide for the flow of fluid among different parts in the sample pumping and discharging device. A displacement sensor is arranged in the cylinder body and used for controlling the suction amount of the sample.

The existing sample pumping and discharging device applied to the logging-while-drilling instrument is found in use that the device gradually moves downwards from the inside of a well in a hoisting mode in the working process, and the device is easy to shake due to instability of pressure in a cavity in the sample pumping and discharging process, so that the working progress is influenced.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a sample pumping and discharging device applied to a logging-while-drilling instrument, which improves the stability of the device in operation, can adjust the depth of the device and is convenient for downhole operation.

In order to achieve the purpose, the utility model provides the following technical scheme: be applied to pump drainage appearance device of logging while drilling instrument, including pump drainage appearance device body and threaded rod, the outside activity cover of pump drainage appearance device body is equipped with the protective housing, the outside top cover of protective housing is equipped with the rectangle seat, the outer end four sides of rectangle seat all can be dismantled and install supporting component, the top fixed mounting of protective housing has sealed lid, the upper shed has been seted up on the top of sealed lid, the rotatable screwed pipe that is provided with in the upper shed, the bottom of threaded rod runs through the screwed pipe and stretches into to the protective housing to with the top rotatable coupling of pump drainage appearance device body.

Preferably, the supporting component comprises a transverse seat and a frame-shaped support installed at the bottom end of the transverse seat, the transverse seat is close to one end of the rectangular seat and is provided with an installation piece, the installation piece is connected with the rectangular seat through two groups of bolts, a pressing cylinder is installed at the top end of the transverse seat, the output end of the pressing cylinder extends into the frame-shaped support and is connected with a rack, a drilling machine is installed in the rack, and the bottom output end of the drilling machine is connected with a vertical downward fixed drill bit.

Preferably, a plurality of groups of clamping grooves in the vertical direction are formed in the inner wall of the protective shell at equal angles, the bottoms of the clamping grooves are located in the middle of the protective shell, and clamping strips matched with the plurality of groups of clamping grooves are installed in the upper half area of the sample pumping and discharging device body.

Preferably, the fixed column is all installed to the diapire of multiunit draw-in groove, and the bottom of multiunit card strip all seted up with fixed column assorted fixed slot.

Preferably, the upper half area of the outer end of the threaded pipe is provided with a rotating disc and a driving wheel, and the driving wheel is positioned below the rotating disc.

Preferably, a limiting plate is installed at the top end of the threaded rod.

Preferably, the positioning seats are arranged in the middle of four sides of the outer end of the rectangular seat, and positioning grooves matched with the positioning seats are arranged at one ends of the four groups of transverse seats close to the rectangular seat.

Compared with the prior art, the utility model has the following beneficial effects:

1. this be applied to pump drainage appearance device of logging while drilling instrument, the outside activity cover of pump drainage appearance device body is equipped with the protective housing, the outside top cover of protective housing is equipped with the rectangle seat, the outer end four sides of rectangle seat all can be dismantled and install the supporting component, all set up automatic locking device in the four supporting component of group, setting through the protective housing, the effect of protection has been played to pump drainage appearance device body, damage with the wall of a well friction when avoiding borehole operation, through the setting of supporting component, the steadiness of device in the operation has been improved.

2. This be applied to pump drainage appearance device of logging while drilling instrument, the top fixed mounting of protective housing has sealed lid, screwed pipe and the upper shed rotatable coupling on sealed lid top, the bottom of threaded rod runs through the screwed pipe and stretches into to the protective housing to with the top rotatable coupling of pump drainage appearance device body, through the operation of positive and negative rotation screwed pipe, the pump drainage appearance device body that drives the threaded rod bottom moves down for the protective housing relatively, thereby can carry out the degree of depth to the device and adjust, be convenient for carry out borehole operation.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a set of support assemblies of the present invention;

FIG. 3 is a schematic top view of the rectangular base and four sets of support assemblies of the present invention;

FIG. 4 is a schematic cross-sectional view of the present invention;

fig. 5 is a schematic view of the enlarged structure of the portion a in fig. 4 according to the present invention.

The symbols in the figures indicate:

1. a sample drawing and discharging device body; 2. a protective shell; 3. a rectangular base; 4. a sealing cover; 5. a threaded pipe; 6. a threaded rod; 7. a transverse seat; 8. a frame-shaped support; 9. mounting a sheet; 10. a pressing cylinder; 11. a frame; 12. a drilling machine; 13. fixing a drill bit; 14. a card slot; 15. clamping the strip; 16. fixing a column; 17. fixing grooves; 18. rotating the disc; 19. a drive wheel; 20. a limiting plate; 21. positioning seats; 22. and (6) positioning a groove.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.

Referring to fig. 1 to 5, the utility model provides a sample pumping and discharging device applied to a logging-while-drilling instrument, which comprises a sample pumping and discharging device body 1 and a threaded rod 6, wherein a protective shell 2 is movably sleeved outside the sample pumping and discharging device body 1, the length of the protective shell 2 is equal to that of the sample pumping and discharging device body 1, and the protective shell 2 is arranged to protect the sample pumping and discharging device body 1 and avoid friction damage with a well wall during downhole operation.

In the embodiment, the rectangular seat 3 is sleeved at the top of the outer side of the protective shell 2, the supporting components are detachably mounted on the four sides of the outer end of the rectangular seat 3, and the stability of the device in operation is improved through the arrangement of the supporting components; the top fixed mounting of protective housing 2 has sealed lid 4, and the upper shed has been seted up on the top of sealed lid 4, the rotatable screwed pipe 5 that is provided with in the upper shed, and the bottom of threaded rod 6 runs through screwed pipe 5 and stretches into to protective housing 2 to with the top rotatable coupling of pump drainage appearance device body 1, limiting plate 20 is installed on the top of threaded rod 6, through the setting of screwed pipe 5 and threaded rod 6, can carry out depth control to the device, is convenient for carry out borehole operation.

In the embodiment, the supporting assembly comprises a transverse seat 7 and a frame-shaped support 8 arranged at the tail end of the bottom of the transverse seat 7, an installation sheet 9 is arranged at one end, close to the rectangular seat 3, of the transverse seat 7, the installation sheet 9 is connected with the rectangular seat 3 through two groups of bolts, a pressing cylinder 10 is arranged at the top end of the transverse seat 7, and the output end of the pressing cylinder 10 extends into the frame-shaped support 8 and is connected with a frame 11; a drilling machine 12 is installed in the rack 11, the bottom output end of the drilling machine 12 is connected with a fixed drill bit 13 which faces downwards vertically, the outer end of the rack 11 is attached to the inner wall of the frame-shaped support 8, the pressing air cylinder 10 and the drilling machine 12 work simultaneously, and the drilling machine 12 drives the fixed drill bit 13 to drill into the ground to be fixed, so that the stability of the supporting seat is improved.

In this embodiment, the inner wall of the protective housing 2 is provided with a plurality of sets of vertical clamping grooves 14 at equal angles, the bottom of each clamping groove 14 is located in the middle of the protective housing 2, the upper half area of the sample pumping and discharging device body 1 is provided with clamping strips 15 matched with the plurality of sets of clamping grooves 14, the sample pumping and discharging device body 1 located in the protective housing 2 is stabilized through the arrangement of the plurality of sets of clamping strips 15 and the plurality of sets of clamping grooves 14, and the inner wall of the protective housing 2 is in contact with the sample pumping and discharging device body 1.

Furthermore, in this embodiment, fixed column 16 is all installed to the diapire of multiunit draw-in groove 14, and fixed slot 17 with fixed column 16 assorted is all seted up to the bottom of multiunit card strip 15, and when pump drainage appearance device body 1 was located the lowest position for protective housing 2, fixed column 16 inserted to fixed slot 17 in, the steadiness when the fixture block was in draw-in groove 14 lowest position has been improved.

Furthermore, in this embodiment, the upper half area of the outer end of the threaded pipe 5 is provided with a rotating disc 18 and a driving wheel 19, the driving wheel 19 is located below the rotating disc 18, and the driving wheel 19 is in transmission with an external motor, a driving wheel and a belt, so as to drive the threaded pipe 5 conveniently.

Furthermore, in this embodiment, the positioning seats 21 are respectively installed in the middle of four sides of the outer end of the rectangular seat 3, the positioning grooves 22 matched with the positioning seats 21 are respectively installed at one end of each of the four groups of the transverse seats 7 close to the rectangular seat 3, and the four groups of the supporting seats are conveniently installed by the positioning seats 21 and the positioning grooves 22, so that the installation efficiency is improved.

When the device is used, firstly, four groups of supporting seats are installed and are in contact with the ground, the pressing cylinder 10 and the drilling machine 12 are simultaneously opened and work simultaneously, and the drilling machine 12 drives the fixed drill bit 13 to drill into the ground for fixing, so that the stability of the supporting seats is improved; then the cooperation through external motor and belt, drive screwed pipe 5 after being connected with drive wheel 19 transmission and rotate, screwed pipe 5 drives threaded rod 6 and rotates, the bottom of threaded rod 6 is connected with the top of pump drainage appearance device body 1, consequently, threaded rod 6 moves down in-process drive pump drainage appearance device body 1 moves down from the pit, thereby carry out pump drainage appearance operation in the pit, remove the in-process, the multiunit fixture block of pump drainage appearance device body 1 outer end removes from the multiunit draw-in groove 14 of protective housing 2 inner wall, consequently, its stability has been improved.

In the description of the present invention, it is to be understood that the orientations or positional relationships indicated by the terms, such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are based on the orientations or positional relationships shown in the drawings, and are for convenience of description and simplicity of description only, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application.

Further, in the description of the present application, "a plurality" means two or more unless specifically defined otherwise.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a be applied to pump drainage appearance device of logging while drilling instrument, its characterized in that, including pump drainage appearance device body (1) and threaded rod (6), the outside activity cover of pump drainage appearance device body (1) is equipped with protective housing (2), the outside top cover of protective housing (2) is equipped with rectangle seat (3), the outer end four sides of rectangle seat (3) all can be dismantled and install supporting component, the top fixed mounting of protective housing (2) has sealed lid (4), the upper shed has been seted up on the top of sealed lid (4), the rotatable screwed pipe (5) that is provided with in the upper shed, the bottom of threaded rod (6) is run through screwed pipe (5) and is stretched into protective housing (2), and with the top rotatable coupling of pump drainage appearance device body (1).

2. The sample pumping and discharging device applied to the logging-while-drilling instrument is characterized in that the supporting assembly comprises a transverse seat (7) and a frame-shaped support (8) arranged at the bottom end of the transverse seat (7), a mounting piece (9) is arranged at one end, close to the rectangular seat (3), of the transverse seat (7), the mounting piece (9) is connected with the rectangular seat (3) through two groups of bolts, a pressing cylinder (10) is arranged at the top end of the transverse seat (7), the output end of the pressing cylinder (10) extends into the frame-shaped support (8) and is connected with a rack (11), a drilling machine (12) is arranged in the rack (11), and the bottom output end of the drilling machine (12) is connected with a fixed drill bit (13) which vertically faces downwards.

3. The sample pumping and discharging device applied to the logging-while-drilling instrument as recited in claim 1, wherein a plurality of groups of vertical clamping grooves (14) are formed in the inner wall of the protective shell (2) at equal angles, the bottoms of the clamping grooves (14) are located in the middle of the protective shell (2), and clamping strips (15) matched with the plurality of groups of clamping grooves (14) are installed on the upper half area of the sample pumping and discharging device body (1).

4. The sample pumping and discharging device applied to the logging-while-drilling instrument as recited in claim 3, wherein fixing columns (16) are mounted on the bottom walls of the multiple groups of clamping grooves (14), and fixing grooves (17) matched with the fixing columns (16) are formed in the bottom ends of the multiple groups of clamping strips (15).

5. The sample pumping and draining device applied to the logging-while-drilling instrument as recited in claim 1, wherein the upper half area of the outer end of the threaded pipe (5) is provided with a rotating disc (18) and a driving wheel (19), and the driving wheel (19) is positioned below the rotating disc (18).

6. The sample pumping and draining device applied to the logging-while-drilling instrument is characterized in that a limiting plate (20) is mounted at the top end of the threaded rod (6).

7. The sample pumping and discharging device applied to the logging-while-drilling instrument as recited in claim 2, wherein the positioning seats (21) are respectively installed at the four sides of the outer end of the rectangular seat (3), and the positioning grooves (22) matched with the positioning seats (21) are respectively installed at the four ends of the four groups of the transverse seats (7) close to the rectangular seat (3).