CN217841635U - Underground tester - Google Patents

Abstract

The utility model relates to a downhole tester, be in including shell and setting the detection module of the inside of shell, be provided with on the shell and pass the liquid passageway, pass the liquid passageway and access to the inside of shell, detection module passes through pass the liquid passageway and detect the parameter of liquid in the pit. The technical scheme provided by the utility model, but have simple structure repeatedly usable, the lower characteristics of cost.

Description

Underground tester

Technical Field

The utility model relates to a parameter measurement technical field under the oil well, concretely relates to downhole tester.

Background

The concentric pipe jet pump is a lifting device commonly used in the crude oil development and production process, and is widely applied to the fields of conventional oil extraction, thick oil thermal recovery, water and gas drainage, sand and oil extraction and the like. When adopting concentric tube jet pump to lift the mode and carry out production in the oil well, need gather temperature, pressure data of jet pump core department in the pit under the prerequisite that does not influence normal production in succession to judge the jet pump operating mode in the pit, according to jet pump operating mode in the pit again, adjust oil well production parameter in a flexible way, promote concentric tube jet pump and lift the effect and satisfy the production demand.

At present, a concentric tube jet pump lacks a downhole temperature and pressure testing device and cannot accurately judge the production condition of an oil well. The existing testers such as pump working conditions, pressure gauges and the like monitor production data of underground or other pump types, but are influenced by factors such as control modes of the testers and the like, and cannot adapt to the well conditions of concentric pipe jet pump oil wells.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned whole or partial problem, the utility model aims to provide an underground tester to obtain comparatively accurate, real-time concentric tube jet pump core department temperature, pressure data, provide the foundation for the adjustment of oil well production parameter.

The utility model provides a downhole tester, be in including shell and setting the detection module of the inside of shell, be provided with on the shell and pass the liquid passageway, pass the liquid passageway and access to the inside of shell, detection module passes through pass the liquid passageway and detect the parameter of liquid in the pit.

Further, the shell comprises a guide head, a sensor barrel and a battery barrel which are sequentially connected through threads;

the liquid conveying channel is arranged on the guide head and is in an inverted T shape, and the detection module is arranged on the guide head and is connected with the liquid conveying channel.

Further, a sealing ring is arranged at the joint of the sensor cylinder and the battery cylinder.

Further, the detection module includes warm pressure sensor, the upper end of guide head is provided with the mounting groove, warm pressure sensor places the inside of mounting groove, the bottom of mounting groove with pass the upper end of liquid passageway and be connected.

Further, the temperature and pressure sensor comprises a temperature sensor and a pressure sensor.

Further, the detection module also comprises a data storage which is placed inside the sensor cylinder and is electrically connected with the temperature and pressure sensor.

Further, the detection module further comprises a battery pack and a circuit device, the battery pack and the circuit device are placed inside the battery barrel, the circuit device is electrically connected with the temperature and pressure sensor, the data storage and the battery pack respectively, and the battery pack provides power for the temperature and pressure sensor and the data storage through the circuit device.

Further, the battery pack adopts a high-temperature-resistant battery.

Further, the outer surfaces of the warm-pressing sensor, the data storage and the battery pack are all provided with protective layers.

Furthermore, a threaded connector is arranged at the top end of the battery barrel;

the guide head, the sensor cylinder and the outer wall of the battery cylinder are provided with clamping grooves matched with mounting tools.

The utility model provides a pair of downhole tester has following advantage:

(1) The device can be placed to the bottom of a well along with the pump core of the jet pump, and can continuously acquire the temperature and pressure parameters of the pump core of the jet pump in the well so as to flexibly adjust the production parameters of an oil well.

(2) The detection module is placed in the shell, so that the detection module is protected from being influenced by the external environment and can work stably.

(3) Has the characteristics of simple structure, repeated use and lower cost.

Drawings

FIG. 1 is a cross-sectional view of a downhole tester in an embodiment of the present invention;

FIG. 2 is a front view of an embodiment of the present invention;

FIG. 3 isbase:Sub>A cross-sectional view A-A of FIG. 2;

fig. 4 is a schematic diagram of the connection between the downhole tester and the pump core in the embodiment of the present invention.

Description of reference numerals: a guide head 1A; a liquid transfer channel 2A; a temperature and pressure sensor 3A; a sensor cylinder 4A; a data storage 5A; a seal ring 6A; a circuit device 7A; a battery pack 8A; a battery can 9A; a downhole tester 10A; a pump core 11A; a housing 12A; a detection module 13A; a mounting groove 14A; a card slot 15A; a threaded connector 16A.

Detailed Description

For better understanding of the purpose, structure and function of the present invention, the following description will be made in detail with reference to the accompanying drawings.

As shown in fig. 1, 2 and 4, the present embodiment discloses a downhole tester 10A, which includes a housing 12A and a detection module 13A disposed inside the housing 12A, the housing 12A is provided with a liquid transmission channel 2A, the liquid transmission channel 2A leads to the inside of the housing 12A, and the detection module 13A detects parameters of downhole liquid through the liquid transmission channel 2A.

Further, the downhole tester 10A is placed to the bottom of the well along with the pump core 11A of the jet pump, and can continuously acquire temperature and pressure data at the pump core 11A of the downhole jet pump, so as to flexibly adjust the production parameters of the oil well.

Further, the detection module 13A is disposed inside the housing 12A, which is beneficial to protecting the detection module 13A from the external environment and can work stably; the shell 12A is provided with a liquid transmission channel 2A, and the liquid transmission channel 2A leads to the inside of the shell 12A from the outer surface of the shell 12A, so that fluid can enter the inside of the shell 12A through the liquid transmission channel 2A, which is convenient for the detection module 13A to detect.

As shown in fig. 3, in the present embodiment, the housing 12A includes a lead 1A, a sensor cartridge 4A, and a battery cartridge 9A, which are connected in this order by screws;

pass liquid passageway 2A and set up on guide head 1A, pass liquid passageway 2A and be the type of inverting T, detection module 13A sets up on guide head 1A and is connected with passing liquid passageway 2A.

Further, the detachable housing 12A facilitates installation and removal of the detection module 13A, as well as inspection and maintenance of the detection module 13A; preferably, the housing 12A is made of a material having high strength and high corrosion resistance to adapt to the complex environment under the oil well.

Further, the guide head 1A is connected with the sensor barrel 4A through a sealing pipe thread, and the sensor barrel 4A is connected with the battery barrel 9A through a sealing pipe thread, so that the detection module 13A is convenient to install, and the detection module 13A is prevented from being damaged by underground fluid and impurities.

Further, the guiding head 1A includes a conical body and a cylinder connected with the conical body, the liquid transmission channel 2A is arranged on the cylinder, wherein the liquid transmission channel 2A is in an inverted T shape, so that the fluid can be discharged after entering the shell 12A, and the fluid can be ensured not to stay in the shell 12A for a long time, so that the detection module 13A is not influenced by the external environment, and the service life of the detection module 13A can be prolonged.

Further, the detection module 13A is disposed on the guide head 1A and connected to the liquid conveying channel 2A, and the fluid reaches the detection module 13A through the liquid conveying channel 2A, and the detection module 13A detects the fluid.

In this embodiment, a seal ring 6A is provided at the joint between the sensor tube 4A and the battery tube 9A.

Further, the sensor cylinder 4A and the battery cylinder 9A are connected through a sealing thread, and a sealing ring 6A is arranged at the joint for secondary sealing, so that the detection module 13A is prevented from being damaged by downhole fluid and impurities, and the work of the detection module 13A is not affected.

In this embodiment, detection module 13A includes warm pressure sensor 3A, and guide head 1A's upper end is provided with mounting groove 14A, and warm pressure sensor 3A places in mounting groove 14A's inside, and mounting groove 14A's bottom is connected with the upper end that passes liquid passageway 2A.

Further, the upper end of the interior of the guide head 1A is provided with a mounting groove 14A, the fluid enters the interior of the guide head 1A through the fluid transmission channel 2A and reaches the mounting groove 14A, and the temperature and pressure parameters of the fluid are detected by the temperature and pressure sensor 3A arranged in the mounting groove 14A.

In this embodiment, the temperature and pressure sensor 3A includes a temperature sensor and a pressure sensor.

In this embodiment, the detection module 13A further includes a data storage 5A, and the data storage 5A is placed inside the sensor cylinder 4A and electrically connected to the temperature and pressure sensor 3A.

Further, the data storage 5A is electrically connected to the temperature and pressure sensor 3A, and data detected by the temperature and pressure sensor 3A is transmitted to the data storage 5A for storage.

In this embodiment, the detection module 13A further includes a battery pack 8A and a circuit device 7A, the battery pack 8A and the circuit device 7A are placed inside the battery barrel 9A, the circuit device 7A is electrically connected to the temperature and pressure sensor 3A, the data storage 5A, and the battery pack 8A provides power for the temperature and pressure sensor 3A and the data storage 5A through the circuit device 7A.

Further, the battery pack 8A is detachably placed inside the battery case 9A, and when the battery pack 8A needs to be replaced, the battery case 9A is opened, so that the battery pack 8A can be replaced.

In this embodiment, the battery pack 8A is a high-temperature-resistant battery.

Further, since the downhole temperature of the heavy oil thermal production well is high, a high-temperature-resistant battery is used in order to normally supply power to the battery pack 8A.

In this embodiment, the outer surfaces of the temperature and pressure sensor 3A, the data storage 5A, and the battery pack 8A are provided with protective layers.

Further, the outer surfaces of the temperature and pressure sensor 3A, the data storage 5A and the battery pack 8A are provided with protective layers, so that the influence of underground vibration or interference of other factors on normal operation can be avoided, and the effects of moisture resistance, water resistance and high temperature resistance can be achieved.

In this embodiment, a threaded connector 16A is provided at the top end of the battery can 9A;

the outer walls of the guide head 1A, the sensor barrel 4A and the battery barrel 9A are provided with clamping grooves 15A matched with mounting tools.

Further, the top end of the battery case 9A is provided with a threaded connector 16A for facilitating connection with the pump cartridge 11A of the jet pump.

Further, the outer walls of the guide head 1A, the sensor barrel 4A and the battery barrel 9A are respectively provided with a clamping groove 15A matched with a mounting tool, so that the guide head 1A, the sensor barrel 4A and the battery barrel 9A can be mounted and dismounted conveniently.

In a preferred embodiment, the downhole tester 10A is connected with the pump core 11A of the jet pump through threads and is lowered into an oil well together, in the production process, fluid flows to the temperature and pressure sensor 3A through the fluid transfer channel 2A, the temperature and pressure sensor 3A transmits detected temperature and pressure data to the data storage 5A, when downhole dynamic data needs to be obtained, the downhole tester 10A and the pump core 11A are lifted out together, the data storage 5A is connected with equipment such as a computer and the like to read the data, and the downhole tester 10A and the pump core 11A are lowered into the well together after the data is obtained, so that production is recovered and can be reused, and the production cost is reduced.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not intended to be limited to the particular embodiments disclosed herein, but rather to include all embodiments falling within the scope of the appended claims.

Claims (10)

1. The downhole tester is characterized by comprising a shell and a detection module arranged inside the shell, wherein a liquid transmission channel is arranged on the shell, the liquid transmission channel leads to the inside of the shell, and the detection module detects parameters of downhole liquid through the liquid transmission channel.

2. The downhole tester of claim 1, wherein the housing comprises a guide head, a sensor cartridge, and a battery cartridge, which are sequentially connected by threads;

the liquid conveying channel is arranged on the guide head and is in an inverted T shape, and the detection module is arranged on the guide head and is connected with the liquid conveying channel.

3. The downhole tester of claim 2, wherein a seal ring is provided at the junction of the sensor cartridge and the battery cartridge.

4. The downhole tester according to claim 2, wherein the detection module comprises a temperature and pressure sensor, the upper end of the guide head is provided with a mounting groove, the temperature and pressure sensor is placed inside the mounting groove, and the bottom of the mounting groove is connected with the upper end of the liquid transmission channel.

5. The downhole tester of claim 4, wherein the temperature and pressure sensors comprise a temperature sensor and a pressure sensor.

6. The downhole tester of claim 4, wherein the detection module further comprises a data storage disposed inside the sensor cartridge and electrically connected to the temperature and pressure sensor.

7. The downhole tester of claim 6, wherein the testing module further comprises a battery pack and a circuit device, the battery pack and the circuit device are disposed inside the battery barrel, the circuit device is electrically connected with the temperature and pressure sensor, the data storage and the battery pack, respectively, and the battery pack supplies power to the temperature and pressure sensor and the data storage through the circuit device.

8. The downhole tester of claim 7, wherein the battery pack is a high temperature battery.

9. The downhole tester of claim 7, wherein the outer surfaces of the warm pressure sensor, the data storage, and the battery pack are provided with protective layers.

10. A downhole tester according to any of claims 2-9, wherein the top end of the battery cartridge is provided with a threaded connector;

the guide head, the sensor cylinder and the outer wall of the battery cylinder are provided with clamping grooves matched with mounting tools.

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