Direct-reading sampling support cylinder gap bridge circuit connector

By using a pluggable direct-reading sampling tray bridge line connector, the problems of low mechanical strength and increased length of the tray were solved, achieving a reduction in tray length and an increase in strength, making it suitable for high-temperature and high-pressure sampling in underground wells.

CN223625330UActive Publication Date: 2025-12-02CHINA FRANCE BOHAI GEOSERVICES
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Patent Information

Application Number
CN202423047253.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-11
Publication Date
2025-12-02
Estimated Expiration
2034-12-11

AI Technical Summary

Technical Problem

The existing direct reading sample carrier bridge line design results in low mechanical strength of the carrier, and the length of the carrier increases with the increase of downhole temperature and depth, which affects the processing and design.

Method used

A pluggable direct-reading sample tray bridge line connector was designed, which adopts a combination structure of a line protector, a sealing chamber, a wiring pin and a limit ring. The pluggable connection shortens the length of the tray and increases the wall thickness, thereby improving mechanical strength.

Benefits of technology

This technology shortens the length of the support tube, increases its mechanical strength, ensures the safety of sampling operations, and adapts to the high temperature and high pressure environment downhole.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a direct-reading sampling support cylinder gap bridge circuit connector and a wire-passing protector. The direct-reading sampling support cylinder gap bridge circuit connector comprises two fixing heads, two sealing cabins and a wire-passing pipe, wherein the two sealing bins are arranged on the wire passing pipe, and the two fixing heads are arranged at the two ends of the wire passing pipe respectively; the bypass circuit comprises two wiring contact pins and a bypass wire, and the two wiring contact pins are connected to the two ends of the bypass circuit respectively; wherein the wiring pins are arranged in the sealing bins in a one-to-one correspondence manner; and the two limiting rings are arranged in the sealing bins in a one-to-one correspondence manner and are used for fixing the wiring contact pins. The bypass wire is connected with the wiring pin and then passes through the wire passing pipe, the bypass wire is fixed in the sealing bin through the limiting ring, and then the connected gap bridge circuit connector is inserted into the direct-reading sampling support cylinder and is fixed by a screw. The length of the direct-reading sampling support cylinder can be effectively shortened, the thickness of the cylinder body is increased, the overall mechanical strength is improved, and the safety of direct-reading sampling is guaranteed.
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Description

Technical Field

[0001] This utility model belongs to the field of high-voltage physical property sampling, and specifically relates to a direct reading sampling tray bridge line connector. Background Technology

[0002] Downhole high-pressure physical property sampling is one of the important methods for obtaining oil and gas samples. Many types of samplers exist both domestically and internationally, and the main sampling control methods include: mechanical clock-controlled sampling, cable-controlled real-time sampling, and breakdown-disk-controlled sampling. Among these, cable-controlled real-time sampling is a straightforward and efficient method. During sampling, a direct-reading sample holder carries a direct-reading pressure gauge to monitor downhole pressure and temperature in real time, and controls the sampling process based on the monitoring data.

[0003] As offshore oil exploration and development wells become increasingly deeper, downhole temperatures continue to rise. Because they need to carry 32mm high-temperature, high-pressure direct-reading pressure gauges, current direct-reading sampling trays are primarily designed as semi-sectioned structures. Existing bridging lines pass through the direct-reading sampling tray for connection, occupying part of the tray's space. With increasing sampling depth and temperature, the mechanical strength of existing semi-sectioned direct-reading sampling trays is not high. Furthermore, when existing bridging lines pass through the direct-reading sampling tray, a special joint is required inside the tray for fixation and support, resulting in an increased overall length of the direct-reading sampling tray and affecting its manufacturing and design.

[0004] To address the shortcomings of existing bridge lines and enhance the mechanical strength of direct reading sample holders, a pluggable direct reading sample holder bridge line connector was designed. Utility Model Content

[0005] The purpose of this invention is to provide a direct reading sample holder bridge line connector that can shorten the overall length of the direct reading sample holder, increase the effective wall thickness of the holder body, and improve the overall mechanical strength of the direct reading sample holder.

[0006] The technical solution provided by this utility model is as follows:

[0007] A direct-read sample tray bridge line connector, characterized in that it comprises:

[0008] The cable pass protector includes two fixing heads, two sealing chambers, and a cable pass tube;

[0009] The two sealing chambers are disposed on the conduit, and the two fixing heads are respectively disposed at both ends of the conduit;

[0010] A bypass line includes two connector pins and a bypass wire, wherein the two connector pins are respectively connected to both ends of the bypass line;

[0011] The wiring pins are arranged one-to-one inside the sealed chamber;

[0012] Two limiting rings are installed in the sealed chamber, one in each direction, to fix the wiring pins.

[0013] Preferably, the fixing head is provided with a screw hole, and the wire guide is connected to the direct reading sample holder body by means of a screw passing through the screw hole, and the size of the screw is consistent with the inner diameter of the screw hole.

[0014] Preferably, the two sealing chambers and the two fixing heads are symmetrically arranged, and the wire protection device is axially symmetrical as a whole.

[0015] Preferably, the limiting ring is circular, the wiring pin is cylindrical, the outer diameter of the wiring pin is the same as the inner diameter of the limiting ring, and the wiring pin is inserted into the limiting ring.

[0016] Preferably, the sealing chamber is cylindrical, with an inner diameter the same as the outer diameter of the limiting ring. After the connected limiting ring and wiring pin are inserted into the sealing chamber, the bypass line can be sealed.

[0017] Preferably, the line protector is made of stainless steel.

[0018] The beneficial effects of this utility model are:

[0019] (1) The direct reading sample tray bridge line connector provided by this utility model is easy to install and replace;

[0020] (2) The direct reading sample tray bridge line connector provided by this utility model has a shortened overall length of the tray, an increased thickness of the tray, and improved overall mechanical strength, thus ensuring the safety of direct reading sample operation. Attached Figure Description

[0021] Figure 1 This is an assembly diagram of the direct reading sample holder bridge circuit connector described in this utility model.

[0022] Figure 2 This is a cross-sectional view of the direct reading sample holder bridge line connector described in this utility model.

[0023] Figure 3 This is a cross-sectional view of the over-line protector of the direct reading sample tray bridge line connector of this utility model.

[0024] Figure 4 This is a front view of the bypass circuit of the direct reading sample tray bridge circuit connector of this utility model.

[0025] Figure 5a This is a front view of the limiting ring of the direct reading sample tray bridge line connector of this utility model.

[0026] Figure 5b This is a top view of the limiting ring of the direct reading sample holder bridge line connector of this utility model.

[0027] Figure 6a This is a front view of the screws of the direct reading sample holder bridge line connector described in this utility model.

[0028] Figure 6b This is a top view of the screws of the direct reading sample holder bridge circuit connector described in this utility model. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0030] like Figure 1 and Figure 2 As shown, this utility model provides a direct reading sample bridge line connector, which mainly includes a line protector 110, a bypass line 120, a limit ring 130, and a screw 140.

[0031] like Figure 3 As shown, the wire pass protector 110 includes two fixing heads 111, two sealing chambers 112, and a wire pass tube 113. The two sealing chambers are disposed on the wire pass tube, and the two fixing heads are respectively disposed at both ends of the wire pass tube. Each fixing head 111 has a screw hole, through which a screw 140 passes to connect the wire pass protector 110 to the direct reading sample holder body. The screw 140 is the same size as the inner diameter of the screw hole. The sealing chamber 112 is cylindrical, with an inner diameter the same as the outer diameter of the limiting ring 130. Inserting the connected limiting ring 130 and wiring pin 121 into the sealing chamber seals the bypass line. A bypass wire 122 passes through the inside of the wire pass tube 113 to protect the series-connected bypass wire 122.

[0032] like Figure 4 As shown, the bypass line 120 includes two connector pins 121 and a bypass wire 122. The two connector pins 121 are respectively connected to the two ends of the bypass line 120. The connector pins 121 are arranged one-to-one in the sealed chamber 112. The bypass wire 122 passes through the conduit 113 and is used to connect the connector pins 121 at both ends.

[0033] like Figure 5a and 5bAs shown, the limiting ring 130 connects to the wiring pin 121 and is fixed inside the sealing chamber 112 of the wire protection device 110. The limiting ring 130 is circular, and the wiring pin 121 is cylindrical. The outer diameter of the wiring pin 121 is the same as the inner diameter of the limiting ring 130, and the outer diameter of the limiting ring 130 is the same as the inner diameter of the sealing chamber 112. The wiring pin 121 is inserted into the limiting ring 130. The connected limiting ring 130 and the wiring pin 121 are inserted into the sealing chamber. They are the same size and are tightly connected to limit, fix and seal, ensuring the stability and reliability of the device.

[0034] like Figure 6a and 6b As shown, the screw 140 is used to fix the assembled bridge line connector 110 to the direct reading sample holder body.

[0035] When installing the direct reading sample holder bridge line connector provided by this utility model, first connect one end of the bypass wire 122 to one of the wiring pins 121, and pass the other end through the wire tube 113 to connect to another wiring pin 121; install and fix the connected wiring pins 121 into the sealing chamber 112 through the limiting ring 130; insert the connected bridge line connector into the direct reading sample holder body and fix it with the screw 140.

[0036] It should be noted that when the bypass wire 122 passes through the conduit 113, a special passing tool is required, and the operation should be slow to prevent damage to the bypass wire 122. When the connected connector pin 121 is installed and fixed into the sealed chamber 112 through the limiting ring 130, care should be taken to ensure proper installation to prevent the connector pin 121 from becoming loose or wobbling. When selecting the screw 140, the limiting ring 130, and the connector pin 121, attention should be paid to their size to prevent mismatches that could lead to insecure fixing. When moving, assembling, installing, or storing the wire protector 120, care should be taken to prevent irreversible damage, such as bending or squeezing.

[0037] The direct-reading sampling tray bridge line connector provided by this utility model secures the connected bypass wire and wiring pin to the sealed chamber via a limiting ring, and then inserts the connected bridge line connector into the direct-reading sampling tray and fixes it with screws. Compared with the existing direct-reading sampling tray and wiring connection, this utility model places the bridge line connector above the direct-reading sampling tray, adopting a plug-in connection and symmetrical installation design, which eliminates the original wiring fixing joint, shortens the overall length of the direct-reading sampling tray, and increases the effective wall thickness of the tray body, thereby improving the overall mechanical strength of the direct-reading sampling tray. Furthermore, the body of the direct-reading sampling tray bridge line connector provided by this utility model is made of stainless steel, which has the advantages of high temperature resistance, high pressure resistance, and corrosion resistance, and can better adapt to downhole high-pressure physical property sampling work.

[0038] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A direct-reading sample tray bridge circuit connector, characterized in that, include: The cable pass protector includes two fixing heads, two sealing chambers, and a cable pass tube; The two sealing chambers are disposed on the conduit, and the two fixing heads are respectively disposed at both ends of the conduit; A bypass line includes two connector pins and a bypass wire, wherein the two connector pins are respectively connected to both ends of the bypass line; The wiring pins are arranged one-to-one inside the sealed chamber; Two limiting rings are installed in the sealed chamber, one in each direction, to fix the wiring pins.

2. The direct-reading sample tray bridge line connector according to claim 1, characterized in that, The fixing head is provided with a screw hole, and the wire protector is connected to the direct reading sample holder body by using a screw passing through the screw hole. The size of the screw is consistent with the inner diameter of the screw hole.

3. The direct-reading sample tray bridge circuit connector according to claim 1, characterized in that, The two sealed chambers and the two fixed heads are symmetrically arranged, and the wire protection device is axially symmetrical as a whole.

4. The direct-reading sample tray bridge circuit connector according to claim 1, characterized in that, The limiting ring is circular, and the wiring pin is cylindrical. The outer diameter of the wiring pin is the same as the inner diameter of the limiting ring, and the wiring pin is inserted into the limiting ring.

5. The direct-reading sample tray bridge circuit connector according to claim 4, characterized in that, The sealing chamber is cylindrical, with an inner diameter the same as the outer diameter of the limiting ring. After the connected limiting ring and wiring pin are inserted into the sealing chamber, the bypass line can be sealed.

6. The direct-reading sample tray bridge circuit connector according to claim 1, characterized in that, The over-line protector is made of stainless steel.