CN214702663U

CN214702663U - A leakproofness safety inspection device for LWD logging

Info

Publication number: CN214702663U
Application number: CN202121133472.6U
Authority: CN
Inventors: 陈亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2021-11-12
Anticipated expiration: 2031-05-25

Abstract

The utility model discloses a leakproofness safety inspection device for LWD logging, including setting up the leakproofness safety inspection device body in LWD instrument interface one side, leakproofness safety inspection device body includes the seal box, be provided with sealed detectability mechanism on the seal box, the left side of seal box is provided with the sealed fast solid mechanism with LWD instrument interface matched with, sealed detectability mechanism includes the vacuum pressure gauge of fixed mounting at the seal box top, the detection end of vacuum pressure gauge extends to in the seal box. The utility model relates to a rationally, be convenient for fast with the sealed fixed connection of leakproofness safety inspection device body and LWD instrument interface, and through the mode of four clamp blocks synchronous to middle displacement shrink clamping, can be suitable for the LWD instrument interface clamping to different specifications, improve application scope, be convenient for detect the leakproofness of LWD instrument, satisfy the user demand, be favorable to the use.

Description

A leakproofness safety inspection device for LWD logging

Technical Field

The utility model relates to a leakproofness safety inspection equipment technical field especially relates to a leakproofness safety inspection device for LWD logging.

Background

LWD means "logging while drilling", which is a general concept that, in addition to measurement parameters including MWID, must include all or part of geological parameters (such as resistivity while drilling, gamma while drilling, density while drilling, porosity while drilling, etc.) and drilling engineering parameters (drilling tool torque while drilling, vibration while drilling, weight while drilling, etc.); the LWD technology is mainly applied to occasions of distinguishing strata, distinguishing oil, gas and water, judging stratum change, predicting high-pressure strata and the like; because LWD instrument's application occasion mostly is secret high pressure test environment, so put forward rigorous requirement to LWD instrument's leakproofness, if LWD instrument's leakproofness can not reach the requirement, then take place the liquid phenomenon of irritating easily in the pit, cause irreversible pollution injury to equipment, consequently, in order to guarantee LWD instrument in the qualified safe operation in the underground, must detect LWD instrument's leakproofness.

Through the retrieval, application number 201420866894.8 discloses a LWD's leakproofness detection device, including connecting piece, vacuum pressure table and mechanical pump, vacuum pressure table and three way connection's first articulate, the one end of connecting piece is equipped with and connects I, in addition-the end is equipped with and connects II, it is in to connect I and connect II the inside intercommunication of connecting piece, wherein connect I and LWD instrument interface sealing connection, connect II through first sealed tube with three way connection's second articulate, the air inlet of mechanical pump pass through second sealed tube with three way connection's third articulate, LWD instrument interface forms sealed space to between the mechanical pump. The utility model discloses a LWD's leakproofness detection device simple structure can effectively detect the gas tightness of LWD instrument, provides safe guarantee for the LWD instrument in the operation of underground.

Although the above patent realizes the function of detecting the tightness of the LWD instrument by the cooperation of the mechanical pump and the vacuum pressure gauge, it still has some disadvantages; the detection device has the defect that the detection device is not convenient to be quickly, hermetically and fixedly connected with interfaces of LWD instruments with different specifications; its mode that adopts the articulate can only be suitable for the LWD instrument interface of a specification, and application scope is more restricted, can not satisfy the user demand, to this phenomenon, therefore we have provided a leakproofness safety inspection device for LWD well logging for solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the leakproofness safety inspection device who proposes a be used for LWD logging.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a sealing safety detection device for LWD logging comprises a sealing safety detection device body arranged on one side of an LWD instrument interface, wherein the sealing safety detection device body comprises a sealing box, a sealing detection mechanism is arranged on the sealing box, and a sealing quick-fixing mechanism matched with the LWD instrument interface is arranged on the left side of the sealing box;

the sealing detection mechanism comprises a vacuum pressure gauge fixedly installed at the top of a sealing box, a detection end of the vacuum pressure gauge extends into the sealing box, a mechanical pump is fixedly installed at the top of the sealing box, an L-shaped pipe is fixedly connected with an air inlet of the mechanical pump, the bottom end of the L-shaped pipe extends into the sealing box, and an exhaust pipe is fixedly connected with the left side of the sealing box.

Preferably, the sealing and fast-fixing mechanism comprises an annular plate arranged on the left side of the sealing box, the annular plate is welded and sleeved on the exhaust pipe, a conical rubber plug is fixedly bonded on the left side of the annular plate, the outer side of the conical rubber plug is in movable contact with the inner side of the right end of the LWD instrument interface, the conical rubber plug is welded and sleeved on the exhaust pipe, an annular groove is formed in the right side of the annular plate, four screw rods are rotatably arranged on the inner side wall of the annular groove in an annular and equidistant manner, L-shaped moving rods are sleeved on the screw rods in a threaded manner, two opposite L-shaped moving rods are symmetrically arranged, one sides, far away from each other, of the two opposite L-shaped moving rods extend out of the annular plate, clamping blocks are fixedly connected on the inner walls, far away from each other, of the two opposite L-shaped moving rods, the LWD instrument interface is located between the four clamping blocks, a small umbrella-shaped gear is welded and sleeved on the screw rods, the two opposite small umbrella-shaped gears are symmetrically arranged, the right sides of the four small bevel gears are meshed with a large bevel gear, the large bevel gear is rotatably sleeved on the inner side wall of the annular groove, an outer gear ring is fixedly sleeved on the large bevel gear, the top of the outer gear ring is meshed with a first gear, an annular baffle is fixedly connected to the right side of the annular plate and matched with the annular groove, a driving motor is fixedly mounted at the top of the left side of the seal box, and an output shaft of the driving motor extends into the annular groove and is fixedly connected with the right side of the first gear.

Preferably, the inner wall of the top of the seal box is provided with a first round hole and a second round hole, the inner wall of the first round hole is fixedly connected with the outer side of the detection end of the vacuum pressure gauge, the inner wall of the second round hole is fixedly connected with the outer side of the L-shaped pipe, the inner wall of the left side of the seal box is provided with a third round hole, and the inner wall of the third round hole is fixedly connected with the outer side of the exhaust pipe.

Preferably, a fourth round hole is formed in the right side of the conical rubber plug, and the inner wall of the fourth round hole is fixedly bonded with the outer side of the exhaust tube.

Preferably, an anti-slip rubber is fixedly bonded to one side of the clamping block, which is close to the interface of the LWD instrument.

Preferably, the inner side wall of the annular groove is fixedly connected with four first bearings at equal intervals, and the inner rings of the first bearings are welded and sleeved with the outer sides of the corresponding screws.

Preferably, be the annular equidistant four rectangular holes of having seted up on the lateral wall of ring channel, and the inner wall of rectangular hole and the outside sliding connection of the L shape carriage release lever that corresponds, the spacing groove has been seted up on the right side of the L shape carriage release lever that lies in the top in four L shape carriage release levers, fixedly connected with stopper on the right side inner wall of the rectangular hole that lies in the top in four rectangular holes, and stopper and spacing groove sliding connection.

Preferably, the opposite ends of the two L-shaped moving rods close to each other are provided with thread grooves, and the thread grooves are in threaded connection with the corresponding screw rods.

Preferably, a fifth round hole is formed in the right side of the large bevel gear, a large bearing is fixedly sleeved in the fifth round hole, and the inner side of an inner ring of the large bearing is fixedly connected with the inner side wall of the annular groove.

Compared with the prior art, the beneficial effects of the utility model are that:

the sealing safety detection device comprises a sealing box, a mechanical pump, an L-shaped pipe, a vacuum pressure gauge, an exhaust tube, an annular plate, a conical rubber plug, an annular groove, a screw rod, an L-shaped movable rod, a small bevel gear, a large bevel gear, an outer gear ring, a driving motor, a first gear and an annular baffle which are matched with clamping blocks, wherein the conical rubber plug is inserted into an LWD instrument interface leftwards to be plugged, the driving motor is started forward to drive the first gear to rotate, the first gear drives the large bevel gear to rotate through the outer gear ring, the large bevel gear drives four screw rods to rotate through four small bevel gears, the screw rods can drive the corresponding L-shaped movable rod to move towards the direction close to the exhaust tube through rotation, the four L-shaped movable rods drive the four clamping blocks to synchronously contract towards the middle, the four clamping blocks drive four anti-skid rubber sheets to clamp the LWD instrument interface towards the middle, and the aim of rapidly sealing safety detection device body and the LWD instrument interface are sealed and fixed is achieved, the four clamping blocks synchronously move towards the middle to shrink and clamp the interfaces of LWD instruments with different specifications;

when the leakproofness detects, open the mechanical pump and make it through the suction of L venturi tube in to the seal box, under suction, form the vacuum in seal box and LWD instrument interface, the vacuum pressure gauge detects the vacuum pressure in the seal box, closes the mechanical pump, whether changes through watching the numerical value on the vacuum pressure gauge in a period, if not changing, then the leakproofness is qualified, if the numerical value diminishes, then can judge for the leakproofness is unqualified.

The utility model relates to a rationally, be convenient for fast with the sealed fixed connection of leakproofness safety inspection device body and LWD instrument interface, and through the mode of four clamp blocks synchronous to middle displacement shrink clamping, can be suitable for the LWD instrument interface clamping to different specifications, improve application scope, be convenient for detect the leakproofness of LWD instrument, satisfy the user demand, be favorable to the use.

Drawings

Fig. 1 is a schematic structural diagram of a sealing safety detection device for LWD logging according to the present invention;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is an enlarged view of part A of FIG. 2;

fig. 4 is the utility model provides a sealing safety inspection device's for LWD logging annular plate, screw rod and L shape carriage release lever connecting piece right side view structure schematic diagram.

In the figure: the device comprises a sealing box 1, a mechanical pump 2, a 3L-shaped pipe, a 4 vacuum pressure gauge, a 5 air exhaust pipe, a 6 annular plate, a 7 conical rubber plug, an 8 annular groove, a 9 screw, a 10L-shaped moving rod, a 11 small umbrella-shaped gear, a 12 large umbrella-shaped gear, a 13 outer gear ring, a 14 driving motor, a 15 first gear, a 16 annular baffle and a 17 clamping block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a sealing safety detection device for LWD logging comprises a sealing safety detection device body arranged on one side of an LWD instrument interface, wherein the sealing safety detection device body comprises a seal box 1, a sealing detection mechanism is arranged on the seal box 1, and a sealing quick-fixing mechanism matched with the LWD instrument interface is arranged on the left side of the seal box 1;

the sealing detection mechanism comprises a vacuum pressure gauge 4 fixedly arranged at the top of a sealing box 1, a detection end of the vacuum pressure gauge 4 extends into the sealing box 1, a mechanical pump 2 is fixedly arranged at the top of the sealing box 1, an air inlet of the mechanical pump 2 is communicated and fixed with an L-shaped pipe 3, the bottom end of the L-shaped pipe 3 extends into the sealing box 1, and an exhaust pipe 5 is communicated and fixed at the left side of the sealing box 1;

the sealing and quick-fixing mechanism comprises an annular plate 6 arranged on the left side of a sealing box 1, the annular plate 6 is welded and sleeved on an exhaust pipe 5, a conical rubber plug 7 is fixedly bonded on the left side of the annular plate 6, the outer side of the conical rubber plug 7 is in movable contact with the inner side of the right end of an LWD instrument interface, the conical rubber plug 7 is bonded and sleeved on the exhaust pipe 5, an annular groove 8 is formed in the right side of the annular plate 6, four screw rods 9 are rotatably arranged on the inner side wall of the annular groove 8 at equal intervals in an annular mode, L-shaped moving rods 10 are sleeved on the screw rods 9 in a threaded mode, two opposite L-shaped moving rods 10 are symmetrically arranged, the sides, far away from each other, of the two opposite L-shaped moving rods 10 extend out of the annular plate 6, clamping blocks 17 are fixedly connected to the inner walls, far away from each other, the LWD instrument interface is located between the four clamping blocks 17, a small umbrella-shaped gear 11 is arranged on the screw rods 9 in a welding sleeve manner, the utility model relates to a sealing safety detection device, which is characterized in that two opposite small bevel gears 11 are symmetrically arranged, the right sides of the four small bevel gears 11 are meshed with a large bevel gear 12, the large bevel gear 12 is rotatably sleeved on the inner side wall of a ring groove 8, an outer gear ring 13 is fixedly sleeved on the large bevel gear 12, a first gear 15 is meshed at the top of the outer gear ring 13, an annular baffle 16 is fixedly connected at the right side of an annular plate 6, the annular baffle 16 is matched with the ring groove 8, a driving motor 14 is fixedly installed at the top of the left side of a sealing box 1, and an output shaft of the driving motor 14 extends into the ring groove 8 and is fixedly connected with the right side of the first gear 15, the sealing safety detection device is conveniently and fixedly connected with an LWD instrument interface in a sealing way, and the clamping and clamping of the LWD instrument interfaces with different specifications can be realized by a synchronous shrinkage clamping mode of four clamping blocks 17 towards the middle displacement, the application range is widened, the sealing performance of the LWD instrument is convenient to detect, the use requirement is met, and the LWD instrument is favorable for use.

In the utility model, the inner wall of the top of the seal box 1 is provided with a first round hole and a second round hole, the inner wall of the first round hole is fixedly connected with the outer side of the detection end of the vacuum pressure gauge 4, the inner wall of the second round hole is fixedly connected with the outer side of the L-shaped pipe 3, the inner wall of the left side of the seal box 1 is provided with a third round hole, the inner wall of the third round hole is fixedly connected with the outer side of the exhaust pipe 5, the right side of the conical rubber plug 7 is provided with a fourth round hole, the inner wall of the fourth round hole is fixedly bonded with the outer side of the exhaust pipe 5, one side of the clamping block 17 close to the interface of the LWD instrument is fixedly bonded with an anti-slip rubber sheet, the inner side wall of the ring groove 8 is fixedly connected with four first bearings at equal intervals in a ring shape, the inner ring of the first bearings is welded and sleeved with the outer side of the corresponding screw rod 9, the outer side wall of the ring groove 8 is provided with four rectangular holes at equal intervals, and the inner wall of the rectangular holes is slidably connected with the corresponding L-shaped movable rod 10, the right side of the L-shaped moving rod 10 positioned above the four L-shaped moving rods 10 is provided with a limiting groove, the inner wall of the right side of the rectangular hole positioned above the four rectangular holes is fixedly connected with a limiting block, the limiting block is connected with the limiting groove in a sliding way, the opposite ends of the two L-shaped moving rods 10 close to each other are provided with thread grooves, the thread grooves are in threaded connection with the corresponding screw rods 9, the right side of the large umbrella-shaped gear 12 is provided with a fifth round hole, a large bearing is fixedly sleeved in the fifth round hole, the inner side of the inner ring of the large bearing is fixedly connected with the inner side wall of the annular groove 8, the utility model has reasonable design, is convenient for rapidly and fixedly connecting the sealing safety detection device body with the LWD instrument interface in a sealing way, and can be applicable to the clamping of the LWD instrument interfaces with different specifications by synchronously displacing towards the middle through the four clamping blocks 17 for shrinkage clamping, improves the application range, and is convenient for the sealing detection of the LWD instrument, the use requirement is met, and the use is facilitated.

The working principle is as follows: when in use, before detection, the conical rubber plug 7 is firstly inserted into an LWD instrument interface leftwards, at the moment, the conical rubber plug 7 seals the right end of the LWD instrument interface, at the moment, the driving motor 14 is started in the forward direction, the driving motor 14 drives the first gear 15 to rotate, the first gear 15 drives the large bevel gear 12 to rotate through the outer gear ring 13 meshed with the first gear, the large bevel gear 12 drives the four small bevel gears 11 meshed with the large bevel gear to rotate, because the two small bevel gears 11 which are opposite are symmetrically arranged, at the moment, the rotating directions of the two small bevel gears 11 which are opposite, the small bevel gears 11 drive the corresponding screw rods 9 to rotate, at the moment, the rotating directions of the two opposite screw rods 9 are opposite, under the action of the thread grooves formed on the L-shaped moving rods 10, the screw rods 9 can drive the corresponding L-shaped moving rods 10 to move towards the direction close to the air exhaust pipe 5, at the moment, the four L-shaped moving rods 10 drive the four clamping blocks 17 to synchronously retract towards the middle, the four clamping blocks 17 drive the four anti-skid rubber sheets to clamp and fix the interfaces of the LWD instruments towards the middle, under the clamping effect, the sealing effect of the conical rubber plug 7 is matched, the purpose of rapidly sealing and fixing the sealing safety detection device body and the interfaces of the LWD instruments is achieved, and the interfaces of the LWD instruments with different specifications can be clamped and fixed in a mode that the four clamping blocks 17 synchronously move towards the middle to shrink and clamp, so that the application range is improved;

when the tightness is detected, a mechanical pump 2 is started, the mechanical pump 2 sucks the inside of a sealing box 1 through an L-shaped pipe 3, the sealing box 1 sucks an LWD instrument interface through an exhaust pipe 5, under the suction force, vacuum is formed in the sealing box 1 and the LWD instrument interface, a vacuum pressure gauge 4 detects the vacuum pressure in the sealing box 1, the mechanical pump 2 is closed, at the moment, a person watches whether the numerical value on the vacuum pressure gauge 4 changes within a period of time, if the numerical value does not change, the tightness is qualified, if the numerical value is reduced, the air leakage phenomenon occurs, at the moment, the tightness can be judged to be unqualified, and the tightness detection of the LWD instrument is facilitated;

after the detection is finished, the driving motor 14 is started reversely, the movement direction of the driving motor 14 is completely opposite to that of the driving motor 14, at the moment, the four clamping blocks 17 are changed into outward expansion movement, the clamping is released, and at the moment, the personnel can separate the sealing safety detection device body from the LWD instrument interface.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The sealing safety detection device for the LWD logging comprises a sealing safety detection device body arranged on one side of an LWD instrument interface, and is characterized in that the sealing safety detection device body comprises a sealing box (1), a sealing detection mechanism is arranged on the sealing box (1), and a sealing quick-fixing mechanism matched with the LWD instrument interface is arranged on the left side of the sealing box (1);

the sealing detection mechanism comprises a vacuum pressure gauge (4) fixedly installed at the top of a sealing box (1), a detection end of the vacuum pressure gauge (4) extends into the sealing box (1), a mechanical pump (2) is fixedly installed at the top of the sealing box (1), an air inlet of the mechanical pump (2) is communicated and fixed with an L-shaped pipe (3), the bottom end of the L-shaped pipe (3) extends into the sealing box (1), and an exhaust pipe (5) is communicated and fixed on the left side of the sealing box (1);

the sealing and quick-fixing mechanism comprises an annular plate (6) arranged on the left side of a sealing box (1), the annular plate (6) is welded and sleeved on an exhaust pipe (5), a conical rubber plug (7) is fixedly bonded on the left side of the annular plate (6), the outer side of the conical rubber plug (7) is in movable contact with the inner side of the right end of an LWD instrument interface, the conical rubber plug (7) is fixedly bonded and sleeved on the exhaust pipe (5), an annular groove (8) is formed in the right side of the annular plate (6), four screw rods (9) are rotatably arranged on the inner side wall of the annular groove (8) in an annular and equidistant mode, L-shaped moving rods (10) are sleeved on the screw rods (9) in a threaded mode, the two opposite L-shaped moving rods (10) are symmetrically arranged, one sides, far away from each other, of the two opposite L-shaped moving rods (10) extend out of the annular plate (6), and clamping blocks (17) are fixedly connected on the inner wall of one side, far away from each other, of the two opposite L-shaped moving rods (10), LWD instrument interface is located between four clamp splice (17), the welding cover is equipped with little bevel gear (11) on screw rod (9), two relative little bevel gear (11) symmetries set up, the right side meshing of four little bevel gear (11) has same big bevel gear (12), big bevel gear (12) rotate the cover and establish on the inside wall of ring channel (8), fixed cover is equipped with outer ring gear (13) on big bevel gear (12), and the top meshing of outer ring gear (13) has first gear (15), the right side fixedly connected with ring baffle (16) of ring baffle (6), ring baffle (16) cooperate with ring channel (8), the left side top fixed mounting of seal box (1) has driving motor (14), and the output shaft of driving motor (14) extend to in ring channel (8) and with the right side fixed connection of first gear (15).

2. The sealing safety detection device for the LWD logging as recited in claim 1, wherein a first round hole and a second round hole are formed in the inner wall of the top of the seal box (1), the inner wall of the first round hole is fixedly connected with the outer side of the detection end of the vacuum pressure gauge (4), the inner wall of the second round hole is fixedly connected with the outer side of the L-shaped pipe (3), a third round hole is formed in the inner wall of the left side of the seal box (1), and the inner wall of the third round hole is fixedly connected with the outer side of the exhaust tube (5).

3. The sealing safety detection device for the LWD logging as recited in claim 1, wherein a fourth round hole is formed in the right side of the conical rubber plug (7), and the inner wall of the fourth round hole is fixedly bonded with the outer side of the exhaust tube (5).

4. The sealing safety detection device for the LWD logging as recited in claim 1, wherein an anti-slip rubber is adhesively fixed on one side of the clamp block (17) close to the LWD instrument interface.

5. The tightness safety detection device for LWD logging according to claim 1, wherein four first bearings are fixedly connected to the inner side wall of the annular groove (8) at equal intervals, and the inner rings of the first bearings are welded and sleeved with the outer sides of the corresponding screws (9).

6. The tightness safety detection device for LWD logging as claimed in claim 1, wherein said annular groove (8) has four rectangular holes on its outer sidewall at equal intervals, and the inner walls of the rectangular holes are slidably connected to the outer sides of the corresponding L-shaped moving rods (10), and the right side of the upper L-shaped moving rod (10) of the four L-shaped moving rods (10) has a limiting groove, and the right side of the upper rectangular hole of the four rectangular holes has a limiting block fixedly connected to the inner wall thereof, and the limiting block is slidably connected to the limiting groove.

7. The tightness safety detection device for LWD logging as recited in claim 1, wherein the opposite L-shaped movable rods (10) have screw grooves at their ends close to each other, and the screw grooves are in threaded connection with the corresponding screw rods (9).

8. The tightness safety detection device for LWD logging as recited in claim 1, wherein a fifth circular hole is provided on the right side of said large bevel gear (12), and a large bearing is fixedly sleeved in the fifth circular hole, and the inner side of the inner ring of the large bearing is fixedly connected with the inner side wall of the annular groove (8).