CN216816177U

CN216816177U - Gas sampling device for logging

Info

Publication number: CN216816177U
Application number: CN202123127376.3U
Authority: CN
Inventors: 程地奎; 陈达
Original assignee: Sichuan Zhongtuoyoushi Optical Control Technology Co ltd
Current assignee: Sichuan Zhongtuoyoushi Optical Control Technology Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-06-24
Anticipated expiration: 2031-12-13

Abstract

The utility model relates to the technical field of logging, in particular to a gas sampling device for logging, which comprises a driving mechanism and a sampling mechanism, wherein the driving mechanism comprises two threaded rods, two fixing plates, two threaded sleeves, two gears, a driving wheel and a first motor, the driving wheel is meshed with the two gears, the first motor is fixedly connected with the driving wheel, the sampling mechanism comprises a sampling shell, two fixing components, a valve component and an analysis component, the threaded rods are fixed, the driving wheel and the gears are in meshed connection relation, one threaded rod is a positive thread, the other threaded rod is a reverse thread, when the gear drives the threaded sleeve to rotate forwards, the threaded sleeve moves upwards on the threaded rod simultaneously, the fixing component fixes the sampling shell on the driving mechanism, the driving mechanism moves to drive the sampling shell to move, the problem of current for the logging gas sampling device sampling range comparatively limit, inefficiency when needs sample many times on a large scale has been solved with this.

Description

Gas sampling device for logging

Technical Field

The utility model relates to the technical field of logging, in particular to a gas sampling device for logging.

Background

The logging technique is the most basic technique in the activity of oil-gas exploration and development, is the most timely and direct means for finding and evaluating oil-gas reservoirs, and has the characteristics of timely and various underground information acquisition, rapid analysis and interpretation and wide application range.

At present, the prior art (CN213397850U) discloses a gas sampling device for natural gas logging, which comprises a cylinder and a pull rod, wherein a first notch is uniformly formed below the cylinder, the first notch is sequentially provided with a first connecting block, a second connecting block and a third connecting block in a through manner, a right sealing disc is arranged at the right end of the first connecting block, the second connecting block and the third connecting block, a left sealing disc is arranged at the left end of the first connecting block, the second connecting block and the third connecting block, a bayonet is arranged on the surface of the left end of the left sealing disc, a first gas hole is formed in the middle end below the cylinder, a second gas hole is formed below the surface of the cylinder, and a second notch is uniformly formed in the upper end of the cylinder; when needs gas sampling, make fixture block bayonet socket through rotatory pull rod and stopper, stopper block second notch holds the handle again, and the pulling holding rod makes the translation of right side sealed dish, and the gas of suction sample in to the barrel through first gas port makes the gas of sample can not run off until left side sealed dish and barrel right-hand member internal surface sealing washer contact.

Adopt above-mentioned mode, the gas that only can prevent the sample can not run off, but general sampling device can only get local sample when the sample, and the gas sample that this kind of sampling device took out is local relatively, and the representativeness is not enough, and the sample need take a sample many times on an intended large scale, and not only waste time but also efficiency is lower, can not satisfy people's requirement.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a gas sampling device for logging, and aims to solve the problems that the sampling range of the existing gas sampling device for logging is limited, and the efficiency is low when the gas sampling device needs to sample for multiple times in a large range.

In order to achieve the above object, the present invention provides a gas sampling device for logging,

comprises a driving mechanism and a sampling mechanism;

the driving mechanism comprises two threaded rods, two fixing plates, two threaded sleeves, two gears, a driving wheel and a first motor, the two threaded rods are respectively and fixedly connected with the two fixing plates and are respectively positioned between the two fixing plates, the two threaded sleeves are respectively and threadedly connected with the two threaded rods and are respectively positioned on the outer side walls of the threaded rods, the two gears are respectively and fixedly connected with the two threaded sleeves and are respectively positioned on the outer side walls of the two threaded sleeves, the driving wheel is meshed with the two gears and is positioned between the two gears, and the first motor is fixedly connected with the driving wheel and is positioned on one side of the driving wheel;

the sampling mechanism includes sample shell, two fixed subassemblies, valve member and analysis subassembly, the sample shell with first motor fixed connection, and be located first motor is kept away from one side of drive wheel, two one side of fixed subassembly respectively with two the threaded sleeve rotates to be connected, two the opposite side of fixed subassembly respectively with sample shell fixed connection, be located respectively the both sides of sample shell, the valve member with sample shell fixed connection, and run through the sample shell, the analysis subassembly with sample shell fixed connection, and be located the inside wall of sample shell.

The fixing assembly comprises a rotary drum and a connecting rod, the rotary drum is rotatably connected with the two threaded sleeves and is located on the outer side walls of the threaded sleeves, one side of the connecting rod is fixedly connected with the rotary drum, and the other side of the connecting rod is fixedly connected with the sampling shell and is located between the rotary drum and the sampling shell.

Wherein, the valve assembly includes intake pipe, baffle, bull stick, backup pad and second motor, the intake pipe with sample shell fixed connection, and run through the sample shell, the baffle with the intake pipe rotates to be connected, and is located the intake pipe inside wall, the bull stick with baffle fixed connection, and run through the intake pipe, the backup pad with sample shell fixed connection, and be located the lateral wall of sample shell, one side of second motor with bull stick fixed connection, the opposite side of second motor with backup pad fixed connection, and be located the bull stick with between the backup pad.

The driving mechanism further comprises a spring and a limiting plate, the spring is fixedly connected with the fixing plate and located on the outer side wall of the spring, and the limiting plate is fixedly connected with the spring and located on one side close to the fixing plate.

The baffle further comprises a baffle body and a sealing ring, the sealing ring is fixedly connected with the baffle body and is positioned on the outer side wall of the baffle body, and the sealing ring is rotatably connected with the air inlet pipe and is positioned on the inner side wall of the air inlet pipe.

The gas sampling device for logging is characterized in that the driving mechanism drives the sampling mechanism to move up and down, the fixing assembly fixes the sampling shell on the driving mechanism, the valve assembly controls gas to enter the sampling shell, the analysis assembly analyzes the gas entering the sampling shell, specifically, the fixing plate fixes the threaded rod, the first motor drives the driving wheel to rotate, the driving wheel and the gear are in meshed connection, the driving wheel drives the gear to rotate when rotating, the gear drives the threaded sleeve to rotate, one of the two threaded rods is a positive thread and the other is a negative thread, when the first motor drives the driving wheel to rotate positively, the two gears drive the two threaded sleeves connected with the gears to simultaneously move upwards on the corresponding threaded rods, when first motor drive when the drive wheel reverses, the gear drives the threaded sleeve is in downstream simultaneously on the threaded rod, because fixed subassembly will the sample shell is fixed on actuating mechanism, works as actuating mechanism removes and also drives the sample shell removes, valve assembly control gas whether gets into in the sample shell, pass through when gas gets into back in the sample shell analysis subassembly carries out the analysis, analysis subassembly utilizes priori knowledge to establish the relevant model of hydrocarbon reservoir characteristic, and the model can be analyzed including liquid performance, conductivity, and normal position hydrocarbon gas composition data carries out more comprehensive accurate analysis to the hydrocarbon reservoir, has reduced the human factor in the analysis, compares traditional approach, can obtain the cross information between the initial information that is most relevant with the hydrocarbon reservoir characteristic and the initial information, simultaneously based on under the scene of difference, if the aperture of a well and the humidity and temperature under test conditions are searched, the method automatically adjusts the model to adapt to the detection environment, a numerical network avoids human factors in a traditional experience method, larger-scale automatic analysis can be completed, multi-information combined analysis is combined with the correlation among multiple information, more analysis bases are provided, the most accurate result is obtained, the sampling mechanism is driven to move up and down by the driving mechanism, and therefore the problems that the sampling range of the existing gas sampling device for logging is limited, and the efficiency is low when the sampling is carried out for a plurality of times in a large range are solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of a gas sampling apparatus for logging according to the present invention.

FIG. 2 is a side view of a logging gas sampling apparatus of the present invention.

Fig. 3 is a cross-sectional view taken along plane B-B of fig. 2.

Fig. 4 is a cross-sectional view taken along plane C-C of fig. 2.

FIG. 5 is an enlarged view of detail A of FIG. 4

1-driving mechanism, 2-sampling mechanism, 3-threaded rod, 4-fixed plate, 5-threaded sleeve, 6-gear, 7-driving wheel, 8-first motor, 9-sampling shell, 10-fixed component, 11-valve component, 12-analysis component, 13-rotary drum, 14-connecting rod, 15-air inlet pipe, 16-baffle, 17-rotary rod, 18-supporting plate, 19-second motor, 20-spring, 21-limiting plate, 22-baffle body and 23-sealing ring.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1 to 5, the present invention provides a gas sampling device for logging:

comprises a driving mechanism 1 and a sampling mechanism 2;

the driving mechanism 1 comprises two threaded rods 3, two fixing plates 4, two threaded sleeves 5, two gears 6, a driving wheel 7 and a first motor 8, the two threaded rods 3 are respectively and fixedly connected with the two fixing plates 4 and are respectively positioned between the two fixing plates 4, the two threaded sleeves 5 are respectively and threadedly connected with the two threaded rods 3 and are respectively positioned on the outer side walls of the threaded rods 3, the two gears 6 are respectively and fixedly connected with the two threaded sleeves 5 and are respectively positioned on the outer side walls of the two threaded sleeves 5, the driving wheel 7 is meshed with the two gears 6 and is positioned between the two gears 6, and the first motor 8 is fixedly connected with the driving wheel 7 and is positioned on one side of the driving wheel 7;

sampling mechanism 2 is including sample shell 9, two fixed subassemblies 10, valve assembly 11 and analysis subassembly 12, sample shell 9 with first motor 8 fixed connection, and be located first motor 8 is kept away from one side of drive wheel 7, two one side of fixed subassembly 10 respectively with two threaded sleeve 5 rotates to be connected, two the opposite side of fixed subassembly 10 respectively with sample shell 9 fixed connection, be located respectively the both sides of sample shell 9, valve assembly 11 with sample shell 9 fixed connection, and run through sample shell 9, analysis subassembly 12 with sample shell 9 fixed connection, and be located the inside wall of sample shell 9.

In this embodiment, the driving mechanism 1 drives the sampling mechanism 2 to move up and down, the fixing component 10 fixes the sampling shell 9 on the driving mechanism 1, the valve component 11 controls the gas to enter the sampling shell 9, the analyzing component 12 analyzes the gas entering the sampling shell 9, specifically, the fixing plate 4 fixes the threaded rod 3, the first motor 8 drives the driving wheel 7 to rotate, the driving wheel 7 and the gear 6 are in a meshed connection relationship, the driving wheel 7 drives the gear 6 to rotate when rotating, the gear 6 drives the threaded sleeve 5 to rotate, since the threaded sleeve 5 and the threaded rod 3 are in threaded connection, one of the two threaded rods 3 is a positive thread and the other is a negative thread, when the first motor 8 drives the driving wheel 7 to rotate positively, two the gear 6 drives two be connected it threaded sleeve 5 is in the correspondence simultaneously upward movement on the threaded rod 3, when first motor 8 drive when drive wheel 7 reverses, gear 6 drives threaded sleeve 5 is in threaded rod 3 simultaneously downward movement, because fixed subassembly 10 will sample shell 9 is fixed on actuating mechanism 1, when actuating mechanism 1 removes and also drives sample shell 9 removes, valve member 11 control gas gets into in the sample shell 9, passes through after gas gets into in the sample shell 9 analysis subassembly 12 carries out the analysis, analysis subassembly 12 utilizes priori knowledge to establish the relevant model of hydrocarbon reservoir characteristic, and the model analysis includes liquid performance, conductivity, and normal position hydrocarbon gas composition data carries out more comprehensive accurate analysis to the hydrocarbon reservoir, has reduced the human factor in the analysis, compared with the traditional method, the method can obtain the cross information between the original information most relevant to the characteristics of the hydrocarbon reservoir and the original information, meanwhile, the humidity and the temperature under different scenes such as the aperture of a well and the testing conditions are checked, the method automatically adjusts the model to adapt to the testing environment, the numerical network avoids human factors in the traditional experience method, larger-scale automatic analysis can be completed, the correlation among multiple information is combined in the multi-information combined analysis, more analysis bases are provided, and the most accurate result is obtained.

Further, the fixing assembly 10 includes a rotating cylinder 13 and a connecting rod 14, the rotating cylinder 13 is rotatably connected to two of the threaded sleeves 5 and is located on the outer side wall of the threaded sleeves 5, one side of the connecting rod 14 is fixedly connected to the rotating cylinder 13, the other side of the connecting rod 14 is fixedly connected to the sampling shell 9 and is located between the rotating cylinder 13 and the sampling shell 9, the valve assembly 11 includes an air inlet pipe 15, a baffle 16, a rotating rod 17, a supporting plate 18 and a second motor 19, the air inlet pipe 15 is fixedly connected to the sampling shell 9 and penetrates through the sampling shell 9, the baffle 16 is rotatably connected to the air inlet pipe 15 and is located on the inner side wall of the air inlet pipe 15, the rotating rod 17 is fixedly connected to the baffle 16 and penetrates through the air inlet pipe 15, the supporting plate 18 is fixedly connected to the sampling shell 9 and is located on the outer side wall of the sampling shell 9, one side of the second motor 19 with the rotating rod 17 is fixedly connected, the other side of the second motor 19 with the supporting plate 18 is fixedly connected and is located between the rotating rod 17 and the supporting plate 18, the baffle 16 further comprises a baffle body 22 and a sealing ring 23, the sealing ring 23 is fixedly connected with the baffle body 22 and is located on the outer side wall of the baffle body 22, and the sealing ring 23 is rotatably connected with the air inlet pipe 15 and is located on the inner side wall of the air inlet pipe 15.

In this embodiment, the connection rod 14 fixedly connects the sampling shell 9 and the rotary drum 13, since the rotary drum 13 is rotatably connected to the threaded sleeve 5, when the threaded sleeve 5 rotates, the rotary drum 13 does not interfere with the threaded sleeve 5, the rotary drum 13 is also moved when the threaded sleeve 5 moves on the threaded rod 3, the sampling shell 9 on the connection rod 14 is moved when the rotary drum 13 moves, the support plate 18 fixes the second motor 19, the rotary rod 17 rotates when the second motor 19 rotates, the rotary rod 17 rotates the baffle 16 in the air inlet pipe 15, the air inlet pipe 15 is opened or closed, and the seal ring 23 seals between the baffle 16 and the inner side wall of the air inlet pipe 15 more firmly

Further, the driving mechanism 1 further includes a spring 20 and a limiting plate 21, the spring 20 is fixedly connected to the fixing plate 4 and is located on the outer side wall of the fixing plate 4, and the limiting plate 21 is fixedly connected to the spring 20 and is located on one side close to the fixing plate 4.

In this embodiment, when the sampling shell 9 moves to the lowest part of the device, the limiting plate 21 prevents the bottom of the sampling shell 9 from hitting the fixing plate 4 to damage the sampling shell 9, and the spring 20 is located between the limiting plate 21 and the fixing plate 4 to play a role of buffering the sampling shell 9.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made without departing from the spirit and scope of the utility model.

Claims

1. A gas sampling device for logging is characterized in that,

comprises a driving mechanism and a sampling mechanism;

2. The gas sampling apparatus for logging of claim 1,

the fixed assembly comprises a rotary drum and a connecting rod, the rotary drum is rotatably connected with the two threaded sleeves and is positioned on the outer side walls of the threaded sleeves, one side of the connecting rod is fixedly connected with the rotary drum, and the other side of the connecting rod is fixedly connected with the sampling shell and is positioned between the rotary drum and the sampling shell.

3. The gas sampling apparatus for logging of claim 1,

the valve assembly includes intake pipe, baffle, bull stick, backup pad and second motor, the intake pipe with sample shell fixed connection, and run through the sample shell, the baffle with the intake pipe rotates to be connected, and is located the intake pipe inside wall, the bull stick with baffle fixed connection, and run through the intake pipe, the backup pad with sample shell fixed connection, and be located the lateral wall of sample shell, one side of second motor with bull stick fixed connection, the opposite side of second motor with backup pad fixed connection, and be located the bull stick with between the backup pad.

4. The logging gas sampling apparatus of claim 1,

the driving mechanism further comprises a spring and a limiting plate, the spring is fixedly connected with the fixing plate and is located on the outer side wall of the spring, and the limiting plate is fixedly connected with the spring and is located on one side close to the fixing plate.

5. The gas sampling apparatus for logging of claim 3,

the baffle still includes baffle body and sealing washer, the sealing washer with baffle body fixed connection to be located the lateral wall of baffle body, the sealing washer with the intake pipe rotates to be connected, and is located the intake pipe inside wall.