CN214412314U

CN214412314U - Power supply device for storage type logging instrument

Info

Publication number: CN214412314U
Application number: CN202021165966.8U
Authority: CN
Inventors: 臧德福; 黄玉科; 李彦民; 张付明; 刘树勤
Original assignee: China Petrochemical Corp; Sinopec Oilfield Service Corp; Sinopec Shengli Petroleum Engineering Corp; Logging Co of Sinopec Shengli Petroleum Engineering Corp
Current assignee: Shengli Logging Co Of Sinopec Jingwei Co ltd; China Petrochemical Corp; Sinopec Oilfield Service Corp; Sinopec Shengli Petroleum Engineering Corp; Sinopec Jingwei Co Ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2021-10-15
Anticipated expiration: 2030-06-22

Abstract

The utility model discloses a power supply device for a storage type logging instrument, which comprises an encapsulation shell, wherein a plug mounting seat, a high-temperature lithium battery and a socket mounting seat are arranged in the encapsulation shell, a single-core plug is arranged in the plug mounting seat, and a single-core socket is arranged in the single-core socket mounting seat; the high-temperature lithium battery is a working power supply of the underground instrument, and is packaged in the packaging shell by using heat-conducting pouring sealant; the negative lead wire of the high-temperature lithium battery is connected with the single-core plug, and the positive lead wire is connected with the single-core socket; and a safety is arranged between the positive leading-out wire and the single-core socket. The device has high safety and reliability, simple operation, convenient maintenance and high cost performance. The device provides a stable and reliable power supply for the downhole operation of the instrument, and ensures that the logging of the downhole instrument is carried out smoothly.

Description

Power supply device for storage type logging instrument

Technical Field

The utility model relates to a power supply unit is used to logging instrument and instrument in pit in power supply unit, especially oil exploration and development field.

Background

With the continuous development of drilling technology and the exploration and development of various oil and gas reservoirs, the technologies of horizontal wells, extended reach wells, multilateral wells, fishbone wells and the like improve the exposed area of the oil reservoir, improve the recovery ratio and reduce the production cost of oil and gas per ton, thereby being popularized and applied. Specially designed well tracks such as S-shaped, stepped and spiral well bores and the like are only used for the long open hole highly deviated well and the horizontal well with the surface casing of 200-300 meters, and difficulty and challenge are brought to logging construction.

The construction procedure of the pipe conveying wet joint mode is complex, the situations that the joint is easy to separate, the cable is damaged and the cable is blocked off sometimes occur, even the cable and an instrument fall down accident is caused, logging information cannot be obtained, and the economic loss which cannot be measured is caused. The conveying mode of the crawler is influenced by factors such as output power of the instrument, load, well track, well wall stability and the like, and the success rate of the well logging instrument reaching a target horizon is low under the complex well condition. In addition, logging while drilling is costly and expensive.

The storage type logging can directly adopt a drilling tool conveying instrument to go down the well for acquiring the formation information without using a cable. The ground data acquisition system records time and depth when the drilling tool is lifted and lowered, and the downhole instrument simultaneously finishes acquisition and storage of time and formation measurement information. After the downhole instrument returns to the surface, the surface data acquisition system reads the data stored in the downhole instrument. And the logging system software realizes the matching of the formation depth and the measurement information through the time information recorded by the ground and the downhole instruments respectively, and completes the cable-free logging.

The storage type logging can circulate mud in the process of tripping up and down the drilling tool, and the instrument can smoothly reach a target layer in the complex difficult well to obtain all logging information. The safety and reliability of well logging are high, and the cost is lower than that of well logging while drilling.

Because no cable is used, power supply for ensuring the operation of the instrument can not be provided from the ground in the logging operation process, so that a stable and reliable underground power supply is provided for the downhole instrument, and the technical problem which needs to be solved is solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a stable, reliable power supply for instrument work in the pit. The utility model discloses the reliability is high, with low costs, overall structure is simple, it is convenient to change.

The purpose of the utility model is realized by the following technical scheme.

The utility model provides a power supply unit for storage formula logging instrument, includes the encapsulation shell, install plug mount pad, high temperature lithium cell, socket mount pad in the encapsulation shell.

And the high-temperature lithium battery is filled and sealed and fixed by using the heat-conducting pouring sealant.

And a negative lead wire and a positive lead wire are welded at two ends of the high-temperature lithium battery, the negative lead wire is welded with the single-core plug, and the positive lead wire is welded with the single-core socket.

And a safety is arranged between the positive lead wire and the single-core socket and welded on the single-core socket.

The plug mounting seat and the socket mounting seat are fixed with the packaging shell through screws.

A single-core plug, a single-core plug insulating pad and an elastic retainer ring are arranged in the plug mounting seat; a single-core socket, a single-core socket insulating pad and an elastic retainer ring are arranged in the socket mounting seat.

And a sealing ring I is arranged outside the single-core plug, a sealing ring II is arranged outside the single-core plug mounting seat, and AB glue is packaged outside the plug mounting seat.

The utility model has the main advantages that: the power supply device has high safety and reliability, simple operation, convenient maintenance and high cost performance. The device provides a stable and reliable power supply for the downhole operation of the instrument, and ensures that the logging of the downhole instrument is carried out smoothly.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;

in the figure: 1-single core plug, 2-single core plug insulating pad, 3-elastic retainer ring, 4-screw, 5-plug mounting seat, 6-high temperature lithium battery, 7-packaging shell, 8-high temperature pouring sealant, 9-fuse, 10-single core socket, 11-socket mounting seat, 12-single core socket insulating pad, 13-heat shrink tube, 14-positive pole outgoing line, 15-negative pole outgoing line, 16-AB glue, 17-sealing ring I, 18-sealing ring II, 19-protective cap I, 20-power supply device, 21-pressure-bearing shell, 22-sealing ring III, 23-lower joint, 24-sealing ring IV, 25-protective cap II, 26-double-head connector and 27-retainer ring.

Detailed Description

The invention will be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and descriptions are provided to explain the invention, but not to limit the invention.

The first embodiment is as follows:

referring to fig. 1, a power supply device for a storage logging tool includes a high temperature lithium battery 6, a package casing 7, a single core plug 1, a plug mounting base 5, a socket mounting base 11, and a single core socket 10.

The high-temperature lithium battery 6 is packaged in a packaging shell 7, a plug mounting seat 5 and a socket mounting seat 11 are inserted at two ends of the packaging shell 7, a single-core plug 1 is inserted in the plug mounting seat 5, a single-core socket 10 is inserted in the socket mounting seat 11, a positive pole lead wire 14 and a negative pole lead wire 15 are respectively welded on a positive pole and a negative pole of the high-temperature lithium battery 6, the positive pole lead wire 14 is connected with the socket mounting seat 11, and the negative pole lead wire 15 is connected with the plug mounting seat 5.

The single-core plug insulation pad comprises a single-core plug insulation pad 2, an elastic retainer ring 3, a screw 4, high-temperature pouring sealant 8, a fuse 9, a single-core socket insulation pad 12, a heat-shrinkable tube 13, AB glue 16, a sealing ring I17 and a sealing ring II 18.

The high-temperature lithium battery 6 is a working power supply of the underground instrument. Different high-temperature lithium batteries 6 are selected, different power supply voltages, different electric energies and different temperature-resistant parameters can be provided, and the underground instrument can be guaranteed to normally supply power during working. And the high-temperature lithium battery 6 is packaged in the packaging shell 7 by using the heat-conducting pouring sealant 8. The encapsulation mode can effectively fix the high-temperature lithium battery 6 and also can play a good role in shock absorption.

The high-temperature lithium battery 6 is welded with a negative electrode lead-out wire 15 on the left side and a positive electrode lead-out wire 14 on the right side. The negative electrode lead wire 15 is connected to the single core plug 1, and the positive electrode lead wire 14 is connected to the single core socket 10. A fuse 9 is arranged between the positive electrode lead wire 14 and the single-core socket 10. The fuse 9 is fixed on the single-core socket 10, and a heat-shrinkable tube 13 is sleeved outside the fuse 9. If the power supply device has a short circuit, the safety 9 can effectively protect the high-temperature lithium battery 6; the fuse 9 is fixed on the single-core socket 10, so that the fuse 9 cannot be loosened due to vibration, and the heat-shrinkable tube 13 provides a reliable insulating environment for the fuse 9.

The plug mounting seat 5 and the socket mounting seat 11 are fixed with the packaging shell 7 through screws 4; a single-core plug 1 is arranged in the plug mounting seat 5, and a single-core socket 10 is arranged in the socket mounting seat 11; the two elastic retainer rings 3 respectively fix the single-core plug 1 in the plug mounting seat 5 and the single-core socket 10 in the socket mounting seat (11).

Single core plug insulating pad 2 is equipped with on single core plug 1 left side, single core socket 10 right side is equipped with single core socket insulating pad 12, and single core plug insulating pad 2 is with plug mount pad 5 and single core plug 1 effective insulation isolation, single core socket insulating pad 12 is with socket mount pad 11 and single core socket 10 effective insulation isolation.

The single-core socket 10 is installed inside the socket installation seat 11, and short circuit caused by misoperation can be effectively avoided.

A sealing ring I17 is installed on the single-core plug 1, an AB glue 16 is packaged outside the plug installation seat 5, and the heat-conducting pouring sealant 8 cannot flow out when the high-temperature lithium battery 6 is poured and sealed.

The single-core plug 1 and the single-core socket 10 supply electricity to the underground instrument, and when the power supply device is insufficient in electricity, the power supply device is convenient to replace.

And a sealing ring II 18 is arranged outside the plug mounting seat 5, so that the power supply device is ensured to be centered when being mounted.

Example two:

referring to fig. 2, the power supply device for the storage logging instrument further includes a protective cap i 19, a power supply device 20, a pressure-bearing housing 21, a sealing ring iii 22, a lower connector 23, a sealing ring iv 24, a protective cap ii 25, a double-head connector 26, and a retainer 27.

The power supply device for the storage logging instrument is integrally arranged in a pressure-bearing shell 21, the top end of the pressure-bearing shell 21 is provided with external threads, and when the well is lowered, the top end of the pressure-bearing shell 21 is in threaded connection with a conveying device of the well lowering instrument; the lower end of the pressure-bearing shell 21 is connected with a lower joint 23 through internal threads. The double-ended connector 26 is mounted in the lower header 23 and is secured by a retainer ring 27.

The negative electrode of the power supply device 20 is inserted into the top of the pressure-bearing shell 21 to realize the grounding of the negative electrode; the positive pole of the power supply device 20 is inserted into the double-head connector 26, and the double-head connector 26 transmits the electric signal to a rear connected instrument to provide a stable and reliable power supply for the normal work of the instrument.

The pressure-bearing shell 21 isolates the external pressure, and provides a normal-pressure working environment for the power supply device 20. The pressure-bearing shell 21 is sealed with the lower connector 23 through the sealing ring III 22, and the lower connector 23 is connected with a following instrument in a threaded mode through the sealing ring IV 24 to generate a sealing effect.

In the process of transporting and storing the power supply device, the top end of the pressure-bearing shell 21 is in threaded connection with a protective cap I19, the lower joint 23 is in threaded connection with a protective cap II 25, the protective cap is used for protecting the power supply device, the top end of the pressure-bearing shell 21 and the screw thread of the lower joint 23 are prevented from being damaged, and the protective cap is taken down when an instrument or a conveying device is connected.

The above description is provided for the purpose of describing the present invention in more detail with reference to the specific preferred embodiments, and it should not be construed that the detailed description of the present invention is limited thereto, and it will be apparent to those skilled in the art that the present invention can be implemented in a number of ways without departing from the spirit and scope of the present invention.

Claims

1. A power supply device for a storage type logging instrument comprises a packaging shell (7), and is characterized in that a plug mounting seat (5), a high-temperature lithium battery (6) and a socket mounting seat (11) are mounted in the packaging shell (7);

the high-temperature lithium battery (6) is packaged in a packaging shell (7) by using a heat-conducting pouring sealant (8).

2. The power supply device for the storage logging instrument as claimed in claim 1, wherein the high temperature lithium battery (6) is a downhole instrument working power supply, and different high temperature lithium batteries (6) are selected to provide different power supply voltages, different electric energies and different temperature-resistant parameters so as to ensure that the downhole instrument works normally.

3. The power supply device for the storage type logging instrument as claimed in claim 1, wherein the high-temperature lithium battery (6) is welded with a negative lead wire (15) on the left side and a positive lead wire (14) on the right side, the negative lead wire (15) is connected with the single-core plug (1), and the positive lead wire (14) is connected with the single-core socket (10).

4. A power supply device for a storage logging instrument according to claim 3, wherein a fuse (9) is arranged between the positive lead-out wire (14) and the single-core socket (10), the fuse (9) is fixed on the single-core socket (10), a heat-shrinkable tube (13) is sleeved outside the fuse (9), and if the power supply device is short-circuited, the fuse (9) can effectively protect the high-temperature lithium battery (6); the fuse (9) is fixed on the single-core socket (10) to ensure that the fuse (9) cannot be loosened due to vibration, and the heat-shrinkable tube (13) provides a reliable insulating environment for the fuse (9).

5. A power supply apparatus for a storage logging tool according to claim 1, wherein the plug mount (5) and the socket mount (11) are fixed to the package housing (7) by screws (4); a single-core plug (1) is arranged in the plug mounting seat (5), and a single-core socket (10) is arranged in the socket mounting seat (11); the single-core plug (1) and the single-core socket (10) are respectively fixed in the plug mounting seat (5) and the socket mounting seat (11) by the two elastic retainer rings (3).

6. The power supply device for the storage type logging instrument according to claim 5, wherein a single core plug insulating pad (2) is arranged on the left side of the single core plug (1), a single core socket insulating pad (12) is arranged on the right side of the single core socket (10), the single core plug insulating pad (2) effectively isolates the plug mounting seat (5) from the single core plug (1), and the single core socket insulating pad (12) effectively isolates the socket mounting seat (11) from the single core socket (10).

7. A power supply device for a storage logging tool according to claim 5, characterized in that the single-core socket (10) is mounted inside the socket mounting seat (11) to effectively avoid short circuit caused by misoperation.

8. The power supply device for the storage type logging instrument as claimed in claim 5, wherein a sealing ring I (17) is mounted on the single-core plug (1), and an AB glue (16) is packaged outside the plug mounting seat (5), so that the heat-conducting pouring sealant (8) cannot flow out when the high-temperature lithium battery (6) is poured and sealed.

9. A power supply apparatus for a storage logging tool according to claim 5, characterized in that the power supply apparatus supplies power to the downhole tool via a single core plug (1) and a single core socket (10), and the power supply apparatus is easily replaced when the power supply apparatus is low.