CN215927376U

CN215927376U - Intelligent testing tool for underground oil and water

Info

Publication number: CN215927376U
Application number: CN202121990495.9U
Authority: CN
Inventors: 丁观世; 汪杰
Original assignee: Cnpc Cube Tianjin Technology Co ltd
Current assignee: Cnpc Cube Tianjin Technology Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-03-01
Anticipated expiration: 2031-08-23

Abstract

The utility model provides an underground oil-water intelligent testing tool which comprises a sealed detection shell, wherein a data acquisition mechanism and a mobile motor are hermetically and fixedly arranged in the sealed detection shell, and a propeller is arranged at the front end of the sealed detection shell and is in transmission connection with the mobile motor; the data acquisition mechanism is including the sampling motor, the coaxial transmission of sampling motor is connected with the location gyro wheel, the location gyro wheel is kept away from the sampling motor one side and is connected with the sample detection mechanism who is used for detecting crude oil water content. The utility model can preferably measure the water content of the underground crude oil before the crude oil is produced to determine whether the oil field has the production value and save the production cost.

Description

Intelligent testing tool for underground oil and water

Technical Field

The utility model relates to the technical field of underground oil-water intelligent testing tools, in particular to an underground oil-water intelligent testing tool.

Background

The water content of crude oil is an important parameter in the petrochemical industry, the detection of the water content of the crude oil is a problem generally concerned in exploitation, if the water content of the crude oil is not accurately detected, the dynamic analysis of an oil well and an oil layer is directly influenced, the dehydration effect of a crude oil valve is influenced, and great energy waste is caused for the collection and transportation of the crude oil.

Among the prior art, the acquisition that detects crude oil water content can lead to installation water content survey probe on defeated oil pipeline, detects when crude oil gathers to the water content of survey crude oil, but the water content of the unable accurate underground crude oil of acquireing before crude oil gathers, especially when carrying out water injection exploitation many times to the oil well, can't judge whether this oil field still has the mining value according to the water content of underground crude oil, cause unnecessary extravagant.

SUMMERY OF THE UTILITY MODEL

In view of the above, the problem to be solved by the present invention is to provide an intelligent testing tool for oil and water in a well, which can preferably measure the water content of the underground crude oil before the crude oil is produced to determine whether the oil field still has the production value, so as to save the production cost.

In order to solve the technical problems, the utility model adopts the technical scheme that:

an intelligent testing tool for underground oil and water comprises a sealed detection shell, wherein a data acquisition mechanism and a mobile motor are fixedly installed in the sealed detection shell in a sealed mode, a propeller is installed at the front end of the sealed detection shell, and the propeller is in transmission connection with the mobile motor;

the data acquisition mechanism is including the sampling motor, the coaxial transmission of sampling motor is connected with the location gyro wheel, the location gyro wheel is kept away from the sampling motor one side and is connected with the sample detection mechanism who is used for detecting crude oil water content.

Furthermore, the sampling detection mechanism comprises a sampling cavity, a piston is movably arranged in the sampling cavity in a sealing mode, and the top surface of the piston is connected with a telescopic rod used for moving axially;

the side wall of the sampling cavity is provided with an oil inlet, and the oil inlet is arranged close to the bottom surface of the sampling cavity.

Furthermore, an ultrasonic generator is installed on the bottom surface of the sampling cavity, and a detection device is installed on the side wall of the sampling cavity.

Furthermore, the working face of the positioning roller is provided with a telescopic clamping groove for movably clamping the telescopic rod, and the working face of the positioning roller is obliquely arranged.

Furthermore, the bottom surface of the positioning roller is provided with an entering groove for installing a telescopic rod, and the entering groove is communicated with the telescopic clamping groove.

Further, a mounting rack for mounting the mobile motor and the sampling motor is fixedly mounted in the sealed detection shell, mounting grooves are formed in two ends of the mounting rack, and wire holes for placing wires are formed in the side walls of the mounting grooves;

the inner wall of the sealed detection shell is provided with a wire groove for arranging wires.

Furthermore, the inner wall of the sealed detection shell is additionally provided with a positioning baffle table for fixing the sealed detection shell.

Furthermore, the cable for power supply and data transmission is fixedly installed at the tail end of the sealed detection shell in a sealed mode, and the sampling motor, the mobile motor, the ultrasonic generator and the detection device are all connected with the cable.

Furthermore, one end of the cable, which is far away from the sealed detection shell, is connected with a central processing system for processing data of the detection device and a control system for enabling the sampling motor, the moving motor, the ultrasonic generator and the detection device to act.

Further, the movable motor is in transmission connection with the propeller through a coupler, a sealing ring is installed on the top surface of the coupler, and a flange cover is fixedly installed on the top surface of the sealing ring.

The utility model has the advantages and positive effects that:

through with data acquisition mechanism fixed mounting in sealed detection shell, the sealed front end installation screw that surveys the shell, the screw area is sealed to be surveyed the shell and is removed in the oil well, make under the data acquisition mechanism acquires the different degree of depth in the oil well, the measured data of crude oil water content, the trailing end connection of sealed detection shell has the cable, the cable will detect data transmission to ground, the central processing system on ground estimates the water content of crude oil according to the data that acquire, before not exploiting the oil field, just can survey the water content of underground crude oil, whether still have mining value in order to confirm this oil field, and the production cost is saved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is an internal schematic view of an intelligent testing tool for oil and water in a well;

FIG. 2 is a front sectional view of an intelligent testing tool for oil and water in a well.

In the figure: 1. sealing the detection shell; 101. positioning a blocking platform; 2. a sampling detection mechanism; 201. a sampling cavity; 202. an ultrasonic generator; 203. a detection device; 204. a piston; 205. a telescopic rod; 206. an oil inlet; 3. a cable; 4. positioning the roller; 401. a telescopic clamping groove; 402. entering a groove; 403. a bearing; 5. a mounting frame; 501. a coupling; 5011. a seal ring; 5012. a flange cover; 502. sampling a motor; 503. a moving motor; 504. a wire guide hole; 6. a propeller.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 and 2, the utility model provides an intelligent testing tool for oil and water in a well, which comprises a sealed detection shell 1, wherein a data acquisition mechanism is fixedly installed in the sealed detection shell 1 in a sealed manner, and is used for acquiring crude oil at different positions in an oil pipe as samples and detecting the water content of the samples so as to estimate the whole oil content of an underground oil field. The screw 6 is installed to sealed detection shell 1 front end, and screw 6 is used for taking sealed detection shell 1 to remove in oil pipe, makes things convenient for the different position measurement of data acquisition mechanism in oil pipe, and the sealed fixed mounting of tail end of sealed detection shell 1 has cable 3, and cable 3 is used for the power supply and transmits the data information that data acquisition mechanism detected to the external world.

A movable motor 503 is fixedly installed in the sealed detection shell 1 in a sealed mode, the propeller 6 is in transmission connection with the movable motor 503, and the movable motor 503 controls the propeller 6 to rotate forwards or reversely so that the sealed detection shell 1 can move forwards and backwards in the oil pipe. The moving motor 503 is connected to the cable 3, and the cable 3 supplies power to the moving motor 503 and controls the motor to rotate forward and backward.

The movable motor 503 is in transmission connection with the propeller 6 through the coupler 501, the sealing ring 5011 is installed on the top surface of the coupler 501, the flange cover 5012 is fixedly installed on the top surface of the sealing ring 5011, the front end of the sealed detection shell 1 is sealed through the coupler 501, the flange cover 5012 and the sealing ring 5011, and the phenomenon that crude oil enters the sealed detection shell 1 to influence the action of the movable motor 503 is avoided.

Data acquisition mechanism is including being used for driven sampling motor 502, and fixed mounting has mounting bracket 5 in the sealed shell of surveying 1, and mounting bracket 5 is used for fixed mounting moving motor 503 and sampling motor 502, and the mounting groove has all been seted up at the both ends of mounting bracket 5 for the cross-section of mounting bracket 5 is the I-shaped, at the both ends of mounting bracket 5 fixed mounting moving motor 503 and sampling motor 502 respectively, and moving motor 503 groove sets up to the front end of sealed shell of surveying 1.

In order to lead out the wires of the mobile motor 503 and the sampling motor 502 conveniently, wire holes 504 are formed in the side walls of the two mounting grooves, the sealed detection shell 1 and the wire holes 504 are arranged in opposite positions, and after the wires are arranged, the openings are sealed by a sealing plate. The inner wall of the sealed detection shell 1 is provided with a wire groove for arranging wires so as to arrange and install the wires of the mobile motor 503 and the sampling motor 502.

Sampling motor 502 coaxial drive is connected with location gyro wheel 4, and location gyro wheel 4 keeps away from sampling motor 502 one side transmission and is connected with sampling test mechanism 2, and sampling test mechanism 2 is used for acquireing crude oil sample to detect the sample, confirm the water content of sample. The sampling detection mechanism 2 comprises a sampling cavity 201 which is used for obtaining a sample and is fixedly arranged in the sealed detection shell 1, a piston 204 is movably arranged in the sampling cavity 201 in a sealed mode, the piston 204 can reciprocate in the sampling cavity 201, crude oil is sucked into the sampling cavity 201, and the crude oil is discharged from the sampling cavity 201. Meanwhile, the piston 204 is provided with a sealing partition, so that the material exchange on two sides of the piston 204 is avoided.

An oil inlet 206 is arranged on the side wall of the sampling cavity 201, the oil inlet 206 is arranged close to the bottom surface of the sampling cavity 201, when the piston 204 reciprocates in the sampling cavity 201, the sampling cavity 201 sucks crude oil in the oil pipe, the water content of the crude oil is detected, after the detection is finished, the crude oil in the sampling cavity 201 is discharged, and the sampling and the detection of the crude oil are finished once.

The top surface of the piston 204 is connected with a telescopic rod 205 for reciprocating movement, the working surface of the positioning roller 4 is obliquely arranged, and the working surface of the positioning roller 4 is provided with a round telescopic clamping groove 401. The telescopic rod 205 is movably clamped in the telescopic clamping groove 401, and when the positioning roller 4 rotates, the positioning roller 4 drives the telescopic rod 205 to move back and forth. Because the working face of the positioning roller 4 is obliquely arranged, the gas exhausted from the sampling cavity 201 can be stored, and the influence on the partition performance of the piston 204 due to overlarge pressure difference between two ends of the piston 204 can be avoided.

An entering groove 402 for installing the telescopic rod 205 is formed in the bottom surface of the positioning roller 4, the entering groove 402 is communicated with the connecting clamping groove, during installation, the clamping end of the telescopic rod 205 is placed into the entering groove 402, and the clamping end slides into the telescopic clamping groove 401 along the communication path. Preferably, the entrance slot 402 may be a cylindrical structure, and the diameter of the entrance slot 402 is not smaller than the diameter of the clamping end of the extension rod 205.

The inner wall of the sealed detection shell 1 is additionally provided with a positioning baffle table 101 for fixing the sealed detection shell 1, a buffer bearing 403 is fixedly mounted on the positioning baffle table 101, and an inner hole of the buffer bearing 403 is fixedly connected with the positioning roller 4 so as to ensure the stable rotation of the positioning roller 4.

An ultrasonic generator 202 is installed on the bottom surface of the sampling cavity 201 and used for emitting ultrasonic waves capable of penetrating through crude oil, a detection device 203 is installed on the side wall of the sampling cavity 201, and the detection device 203 detects the ultrasonic intensity data after the ultrasonic waves penetrate through the crude oil. Supersonic generator 202 and detecting device 203 all are connected with cable 3, and cable 3 is far away from sealed casing 1 one end of surveying and is connected with central processing system and control system, and cable 3 detects the ultrasonic intensity who detects with detecting device 203 and transmits central processing system for, and central control system calculates the attenuation condition of ultrasonic, obtains crude oil to with the attenuation coefficient of ultrasonic, and then calculates the water content of crude oil. The control system is used for controlling the actions of the sampling motor 502, the moving motor 503, the ultrasonic generator 202 and the detection device 203.

The working principle and the working process of the utility model are as follows:

taking vertical well exploitation as an example, after a test tool is put into an underground oil pipe in advance, the control system enables the movable motor 503 to rotate forwards, the movable motor 503 drives the propeller 6 to rotate forwards through the coupler 501, the test tool moves downwards in the oil pipe, and the depth of the test tool in the well is judged according to the length of the transmission cable.

After the testing tool reaches the set depth, the movable motor 503 stops rotating, meanwhile, the control system controls the sampling motor 502 to rotate for half a circle, the sampling motor 502 enables the piston 204 to slowly get away from the bottom surface of the sampling cavity 201 through the positioning roller 4 and the telescopic rod 205, the pressure at the bottom end of the sampling cavity 201 is reduced, crude oil outside the testing tool is pressed into the bottom end of the sampling cavity 201 from the oil inlet 206, and air at the top end of the sampling cavity 201 is discharged into the bottom surface of the positioning roller 4.

The control system starts the ultrasonic generator 202 and the detection device 203, the detection device 203 detects ultrasonic waves, and after the ultrasonic intensity data is transmitted to the central processing system, the control system controls the ultrasonic generator 202 and the detection device 203 to stop working, and simultaneously, the sampling motor 502 continuously rotates for a half circle in the same direction, so that the piston 204 is close to the bottom surface of the sampling cavity 201, and crude oil in the sampling cavity 201 is discharged from the oil inlet 206.

After the sampling motor 502 finishes the action, the control system enables the moving motor 503 to continue to rotate forwards, and the testing tool continues to move downwards so as to detect the water content of the crude oil at different depths. When it is desired to retrieve the test tool, the control system reverses the travel motor 503 and the test tool is removed from the well via the cable 3.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.

Claims

1. The underground intelligent oil-water testing tool is characterized by comprising a sealed detection shell (1), wherein a data acquisition mechanism and a mobile motor (503) are hermetically and fixedly installed in the sealed detection shell (1), a propeller (6) is installed at the front end of the sealed detection shell (1), and the propeller (6) is in transmission connection with the mobile motor (503);

the data acquisition mechanism is including sampling motor (502), sampling motor (502) coaxial drive is connected with location gyro wheel (4), location gyro wheel (4) are kept away from sampling motor (502) one side and are connected with sample detection mechanism (2) that are used for detecting crude oil water content.

2. The intelligent testing tool for the oil and water in the well according to claim 1, wherein the sampling detection mechanism (2) comprises a sampling cavity (201), a piston (204) is movably installed in the sampling cavity (201) in a sealing mode, and a telescopic rod (205) used for moving axially is connected to the top surface of the piston (204);

an oil inlet (206) is formed in the side wall of the sampling cavity (201), and the oil inlet (206) is arranged close to the bottom surface of the sampling cavity (201).

3. The intelligent testing tool for the oil and water in the well is characterized in that an ultrasonic generator (202) is installed on the bottom surface of the sampling cavity (201), and a detection device (203) is installed on the side wall of the sampling cavity (201).

4. The intelligent testing tool for the oil and water in the well according to claim 1, wherein a telescopic clamping groove (401) for movably clamping a telescopic rod (205) is formed in the working surface of the positioning roller (4), and the working surface of the positioning roller (4) is obliquely arranged.

5. The intelligent testing tool for the oil and water in the well according to claim 4, wherein an entering groove (402) used for installing an expansion link (205) is formed in the bottom surface of the positioning roller (4), and the entering groove (402) is communicated with an expansion slot (401).

6. The intelligent testing tool for the oil and water in the well according to claim 1, characterized in that a mounting rack (5) for mounting a moving motor (503) and a sampling motor (502) is fixedly mounted in the sealed detection shell (1), mounting grooves are formed in both ends of the mounting rack (5), and wire holes (504) for placing wires are formed in the side walls of the mounting grooves;

the inner wall of the sealed detection shell (1) is provided with a wire groove for arranging wires.

7. The intelligent testing tool for the oil and water in the well is characterized in that a positioning baffle table (101) used for fixing the sealing detection shell (1) is additionally arranged on the inner wall of the sealing detection shell (1).

8. The intelligent testing tool for the oil and water in the well according to claim 1, wherein a cable (3) for power supply and data transmission is fixedly installed at the tail end of the sealed detection shell (1) in a sealed mode, and the sampling motor (502), the moving motor (503), the ultrasonic generator (202) and the detection device (203) are all connected with the cable (3).

9. The intelligent testing tool for the oil and water in the well according to claim 8, characterized in that one end of the cable (3) far away from the sealed detection shell (1) is connected with a central processing system for processing data of the detection device and a control system for enabling the sampling motor (502), the moving motor (503), the ultrasonic generator (202) and the detection device (203) to act.

10. The intelligent testing tool for the oil and water in the well is characterized in that the movable motor (503) is in transmission connection with the propeller (6) through a coupler (501), a sealing ring (5011) is installed on the top surface of the coupler (501), and a flange cover (5012) is fixedly installed on the top surface of the sealing ring (5011).