CN215408609U - Temperature measuring probe for logging instrument - Google Patents
Temperature measuring probe for logging instrument Download PDFInfo
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- CN215408609U CN215408609U CN202121460093.8U CN202121460093U CN215408609U CN 215408609 U CN215408609 U CN 215408609U CN 202121460093 U CN202121460093 U CN 202121460093U CN 215408609 U CN215408609 U CN 215408609U
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- metal protective
- heat insulation
- insulation pipe
- temperature
- protective shell
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Abstract
The utility model provides a temperature measuring probe for a logging instrument, which comprises a temperature sensor, a metal protective shell head, a heat insulation pipe, a fixed seat and a lead, wherein the metal protective shell head and the heat insulation pipe are hollow, the temperature sensor is arranged in the metal protective shell head, one end of the metal protective shell head is fixedly and hermetically connected with one end of the heat insulation pipe, the other end of the heat insulation pipe is fixedly and hermetically connected with the fixed seat, a lead hole is formed in the fixed seat, the output end of the temperature sensor is connected with the lead, the lead is led out from the lead hole in the fixed seat through the metal protective shell head and the heat insulation pipe in sequence, and high-temperature glue is filled in the metal protective shell head and the heat insulation pipe. The temperature measuring probe adopts a sectional structure, has short temperature measuring time delay, quick heat conduction and small heat loss, and can reflect the real-time temperature in the well in time.
Description
Technical Field
The utility model belongs to the technical field of temperature measurement, and particularly belongs to a temperature measurement probe for a logging instrument.
Background
The temperature measuring probe is a common device for measuring downhole temperature parameters by a logging instrument, mainly measures the downhole temperature parameters, the performance of the temperature measuring probe is crucial to the measurement result, the temperature of each section of stratum is generally measured in the process of lowering or lifting the logging instrument due to the particularity of the using working condition of the logging instrument, if the temperature conduction of the temperature measuring probe is slow, the temperature conduction is delayed, and the real temperature value cannot be timely and accurately reflected. When the logging instrument is used for measurement, the real-time temperature change condition of the underground stratum is required to be measured at any time, and the pressure bearing of the temperature measuring probe is also required. The temperature measuring probe manufactured by the prior technical scheme is characterized in that a temperature measuring device is arranged in a metal protective shell with a certain thickness, is led out by a lead and is encapsulated with a resin adhesive. During measurement, the underground temperature is transmitted to the metal protective shell through the underground medium and then transmitted to the temperature sensing device through the metal protective shell, the temperature transmission is slow, the heat loss is large, and the underground real-time temperature cannot be reflected timely.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model aims to provide a temperature measuring probe for a logging instrument, which can reflect the real-time temperature in a well in time.
In order to achieve the purpose, the utility model provides the following technical scheme: a temperature measuring probe for a logging instrument comprises a temperature sensor, a metal protective shell head, a heat insulation pipe, a fixed seat and a lead,
wherein, the inside cavity of metal protective housing head and thermal-insulated pipe, temperature sensor set up in the metal protective housing head, metal protective housing head one end and the fixed sealing connection of one end of thermal-insulated pipe, the other end and the fixed sealing connection of fixing base of thermal-insulated pipe are provided with the wire guide on the fixing base, and temperature sensor's output and wire are connected, and the wire is drawn forth from the wire guide on the fixing base through metal protective housing head, thermal-insulated pipe in proper order, the filling has high temperature to glue in metal protective housing head and the thermal-insulated pipe.
Furthermore, one end of the head of the metal protective shell is sealed, the other end of the head of the metal protective shell is provided with an opening, and one end of the opening is fixedly connected with the heat insulation pipe.
Furthermore, the open-ended one end of metal protective housing head is equipped with the internal thread, the one end of thermal-insulated pipe be provided with the external screw thread that the internal thread matches now, the one end threaded connection of metal protective housing head and thermal-insulated pipe.
Furthermore, be provided with the internal thread on the fixing base, the other end of thermal-insulated pipe be provided with the external screw thread that the internal thread matches now, the fixing base with the other end fixed connection of thermal-insulated pipe.
Furthermore, high-temperature glue is poured into the heat insulation pipe and the metal protection shell head through the wire hole, and the high-temperature glue is used for bonding and sealing the metal protection shell head, the heat insulation pipe, the fixing seat and the wires.
Furthermore, the head of the metal protective shell is made of stainless steel, brass, titanium alloy and beryllium bronze.
Further, the heat insulation pipe is a glass fiber reinforced composite material pipe or a ceramic pipe.
Further, the heat insulation pipe is made of low heat conduction materials, and the low heat conduction materials comprise high temperature resistant polyether-ether-ketone and polytetrafluoroethylene.
Furthermore, the fixing seat is made of stainless steel or titanium alloy.
Further, the wire is a high-temperature-resistant wire.
Compared with the prior art, the utility model has at least the following beneficial effects:
the temperature measuring probe for the logging instrument adopts a sectional structure, reduces the volume of the original metal protective shell by adding the heat insulation pipe between the head of the metal protective shell and the fixed seat, has short temperature measurement time delay, quick heat conduction and small heat loss, and can timely reflect the real-time temperature in the well.
Drawings
FIG. 1 is a temperature measurement probe according to the present invention;
in the drawings: 1 a temperature sensor; 2 a metal protective shell head; 3, a heat insulation pipe; 4, fixing a base; 5 conducting wires.
Detailed Description
The utility model is further described with reference to the following figures and detailed description.
As shown in fig. 1, the present invention provides a temperature measurement probe for a logging instrument, which includes a temperature sensor 1, a metal protective shell head 2, a heat insulation pipe 3, a fixed seat 4, and a lead 5.
The metal protective shell head 2 and the heat insulation pipe 3 are hollow, one end of the metal protective shell head 2 is sealed, one end of the metal protective shell head 2 is provided with an opening, two ends of the heat insulation pipe 3 are provided with openings, the temperature sensor 1 is arranged in the metal protective shell head 2 and used for sensing and measuring temperature, the open end of the metal protective shell head 2 is fixedly and hermetically connected with one end of the heat insulation pipe 3, the other end of the heat insulation pipe 3 is fixedly and hermetically connected with the fixed seat 4, and the heat insulation pipe 3 is used for preventing the metal protective shell head 2 from conducting heat to the fixed seat 4 and an instrument shell and reducing heat loss; the fixed seat 4 is provided with a wire hole, the output end of the temperature sensor 1 is connected with a wire 5, the wire 5 is a high-temperature-resistant wire, the wire 5 is led out from the wire hole on the fixed seat 4 through the head part 2 of the metal protective shell and the heat insulation pipe 3 in sequence, and the fixed seat 4 is used for fixing the temperature measuring probe on a logging instrument;
preferably, internal threads are arranged on the opening end of the metal protective shell 2 and the fixed seat 4, external threads matched with the internal threads are arranged at two ends of the heat insulation pipe 3, and the metal protective shell 2 and the fixed seat 4 are respectively in threaded connection with two ends of the heat insulation pipe 3;
after the components are assembled, high-temperature glue is poured into the heat insulation pipe 3 and the metal protective shell head 2 from the wire hole, and the high-temperature glue is firmly bonded and sealed with the metal protective shell head 2, the heat insulation pipe 3, the fixing seat 4 and the wires 5 after being poured.
Preferably, the material of the metal protective shell 2 is stainless steel, brass material, titanium alloy material or beryllium bronze material.
Preferably, the heat insulation pipe 3 is a glass fiber reinforced composite material pipe or a ceramic pipe, and the heat insulation pipe 3 is a low heat conduction material, specifically a high temperature resistant polyether-ether-ketone or polytetrafluoroethylene material;
preferably, the fixing seat 4 is made of stainless steel or titanium alloy.
When in use, the temperature measuring probe is fixed on a logging instrument through the fixing seat 4 to measure the downhole temperature.
Claims (10)
1. A temperature measuring probe for a logging instrument is characterized by comprising a temperature sensor (1), a metal protective shell head (2), a heat insulation pipe (3), a fixed seat (4) and a lead (5),
wherein, the inside cavity of metal protective housing head (2) and insulating tube (3), temperature sensor (1) sets up in metal protective housing head (2), the one end fixed seal of metal protective housing head (2) one end and insulating tube (3) is connected, the other end and fixing base (4) fixed seal of insulating tube (3) are connected, be provided with the wire guide on fixing base (4), the output and wire (5) of temperature sensor (1) are connected, wire (5) are drawn forth from the wire guide on fixing base (4) through metal protective housing head (2), insulating tube (3) in proper order, the filling has high temperature to glue in metal protective housing head (2) and insulating tube (3).
2. A logging tool temperature measurement probe according to claim 1, wherein the metal protective casing head (2) is sealed at one end and provided with an opening at the other end, and one end of the opening is fixedly connected with the heat insulation pipe (3).
3. The temperature measurement probe for the logging instrument as recited in claim 1, wherein an internal thread is provided at an open end of the head portion (2) of the metal protective shell, an external thread which is matched with the internal thread is provided at an end of the heat insulation pipe (3), and the head portion (2) of the metal protective shell is in threaded connection with an end of the heat insulation pipe (3).
4. The temperature measuring probe for the logging instrument according to claim 1, wherein an internal thread is arranged on the fixed seat (4), an external thread matched with the internal thread is arranged at the other end of the heat insulation pipe (3), and the fixed seat (4) is fixedly connected with the other end of the heat insulation pipe (3).
5. The temperature measurement probe for the logging instrument according to claim 1, wherein the high temperature glue is poured into the heat insulation pipe (3) and the metal protective shell head (2) through the wire hole, and the high temperature glue is used for bonding and sealing the metal protective shell head (2), the heat insulation pipe (3), the fixed seat (4) and the wire (5).
6. A logging tool temperature measurement probe according to claim 1, wherein the protective metal shell head (2) is made of stainless steel, brass, titanium alloy, beryllium bronze.
7. A logging instrument temperature measurement probe according to claim 1, wherein the thermally insulated tube (3) is a glass fibre reinforced composite tube or a ceramic tube.
8. A logging instrument temperature measurement probe according to claim 1, wherein the heat insulating tube (3) is made of a low thermal conductivity material comprising polyetheretherketone, polytetrafluoroethylene, which is resistant to high temperatures.
9. A logging instrument temperature measurement probe according to claim 1, wherein the holder (4) is made of stainless steel or titanium alloy.
10. A logging instrument temperature measurement probe according to claim 1, wherein the wire (5) is a high temperature resistant wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121460093.8U CN215408609U (en) | 2021-06-29 | 2021-06-29 | Temperature measuring probe for logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121460093.8U CN215408609U (en) | 2021-06-29 | 2021-06-29 | Temperature measuring probe for logging instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215408609U true CN215408609U (en) | 2022-01-04 |
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ID=79643063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121460093.8U Active CN215408609U (en) | 2021-06-29 | 2021-06-29 | Temperature measuring probe for logging instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215408609U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115127698A (en) * | 2022-08-25 | 2022-09-30 | 鲲鹏基因（北京）科技有限责任公司 | Waterproof temperature polling instrument for temperature calibration of polymerase chain reaction analyzer |
-
2021
- 2021-06-29 CN CN202121460093.8U patent/CN215408609U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115127698A (en) * | 2022-08-25 | 2022-09-30 | 鲲鹏基因（北京）科技有限责任公司 | Waterproof temperature polling instrument for temperature calibration of polymerase chain reaction analyzer |
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