CN108398205B - Calibration device for tension nipple - Google Patents
Calibration device for tension nipple Download PDFInfo
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- CN108398205B CN108398205B CN201810150814.1A CN201810150814A CN108398205B CN 108398205 B CN108398205 B CN 108398205B CN 201810150814 A CN201810150814 A CN 201810150814A CN 108398205 B CN108398205 B CN 108398205B
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- tension
- cylinder
- calibration device
- piston
- short section
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
Abstract
The invention provides a calibration device for a tension nipple, which comprises: the telescopic cylinder is provided with a piston rod and an annular piston cylinder, one end of the piston extends out of the top surface of the piston cylinder, a pressure gauge interface and a first pressure oil interface which are communicated with the rodless cavity are arranged on the piston cylinder, and a second pressure oil interface which is communicated with the rod cavity is also arranged on the piston cylinder; the annular first connecting piece is arranged on the piston rod and is used for being connected with one of the outer cylinder of the tension short section and the sensor of the tension short section; and the annular second connecting piece is arranged on the piston cylinder and is used for being connected with the other one of the outer cylinder of the tension short section and the sensor of the tension short section. The calibration device can effectively and conveniently perform real-time calibration on the sensor of the tension nipple on the ground.
Description
Technical Field
The paper relates to the technical field of machinery, in particular to a calibration device for a tension short section.
Background
At present, when a well wall coring instrument is used for coring, a tension short joint needs to be hung to detect the change state of underground tension, so that the judgment of the state of the underground tool instrument by a logging engineer can be assisted. The inside sensor of tension nipple joint belongs to mechanical sensor, needs the real-time scale of unscheduled, discovers in operation process moreover, and the sensor of tension nipple joint carries out the calibration scale many times before doing the operation in the pit, can also guarantee the security of operation, can effectively assist logging engineer to avoid the appearance of logging risk.
At present, the method for real-time calibration of tension pups joint comprises the steps of hanging all instruments, then utilizing a logging truck to hang a seven-core cable into a wellhead for calibration, and consuming a lot of manpower and material resources every time of calibration, so that the cost is high.
Disclosure of Invention
In order to solve at least one of above-mentioned technical problem, this paper provides a scale device of tension nipple joint, can effectively conveniently carry out real-time scale at the sensor of ground to tension nipple joint.
The scale device of the tension short section comprises: the telescopic cylinder is provided with a piston rod and an annular piston cylinder, one end of the piston rod extends out of the top surface of the piston cylinder, a pressure gauge interface and a first pressure oil interface which are communicated with the rodless cavity are arranged on the piston cylinder, and a second pressure oil interface which is communicated with the rod cavity is also arranged on the piston cylinder; the annular first connecting piece is arranged on the piston rod and is used for being connected with one of the outer cylinder of the tension short section and the sensor of the tension short section; and the annular second connecting piece is arranged on the piston cylinder and is used for being connected with the other one of the outer cylinder of the tension short section and the sensor of the tension short section.
Optionally, the calibration device of the tension sub further includes: and the pressure gauge is connected to the pressure gauge interface.
Optionally, the piston rod includes a plurality of piston rods uniformly distributed in the circumferential direction.
Optionally, a plurality of the piston rods are connected to an end face or an outer side face of the first connecting member.
Optionally, there are two of the plurality of piston rods.
Optionally, the inner side surface of the first connecting piece is provided with a connecting thread.
Optionally, the second connecting element is fixed to the outer bottom surface of the piston cylinder by an end surface.
Optionally, the inner side surface of the second connecting piece is provided with a connecting thread.
Optionally, the telescopic cylinder is a ram.
Optionally, a connecting shaft is installed at one end, far away from the outer cylinder, of the sensor, the first connecting piece is connected with the outer cylinder, and the second connecting piece is connected with the connecting shaft.
Compared with the prior art, the calibration device for the tension short section, provided by the invention, has the advantages that the tension short section is arranged in an area defined by the telescopic cylinder, the first connecting piece is connected with one of the outer cylinder of the tension short section and the sensor of the tension short section, the second connecting piece is connected with the other of the outer cylinder of the tension short section and the sensor of the tension short section, the pressure gauge is arranged at a pressure gauge interface, pressure oil is supplied into the rodless cavity through the first pressure oil interface, the sensor is calibrated by observing the numerical value of the pressure gauge, and the real-time calibration of the sensor of the tension short section on the ground is realized.
Additional features and advantages of the disclosure will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the disclosure. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the embodiments herein and are incorporated in and constitute a part of this specification, illustrate embodiments herein and are not to be construed as limiting the embodiments herein.
Fig. 1 is a schematic front view of a calibration device of a tension sub according to an embodiment of the present invention.
Wherein, the corresponding relation between the reference numbers and the names of the components in fig. 1 is as follows:
11 piston rods, 12 piston cylinders, 21 pressure gauge ports, 22 first pressure oil ports, 23 second pressure oil ports, 3 pressure gauges, 31 first connecting pieces and 32 second connecting pieces.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, however, the present disclosure may be practiced otherwise than as specifically described herein, and thus the scope of the present disclosure is not limited by the specific embodiments disclosed below.
The calibration device of the tension sub of some embodiments of the present disclosure is described below with reference to the accompanying drawings.
The calibration device for the tension sub provided by the invention is shown in fig. 1 and comprises: the telescopic cylinder is provided with a piston rod 11 and an annular piston cylinder 12, one end of the piston rod 11 extends out of the top surface of the piston cylinder 12, a pressure gauge interface 21 and a first pressure oil interface 22 which are communicated with a rodless cavity are arranged on the piston cylinder 12, and a second pressure oil interface 23 which is communicated with a rod cavity is also arranged on the piston cylinder 12; an annular first connecting piece 31 which is arranged on the piston rod 11 and is used for connecting with one of the outer cylinder of the tension short section and the sensor of the tension short section; and an annular second coupling member 32 mounted on the piston cylinder 12 for coupling with the other of the outer cylinder of the tension sub and the sensor of the tension sub.
According to the calibration device for the tension short section, the tension short section is arranged in an area defined by a telescopic cylinder, a first connecting piece 31 is connected with one of an outer cylinder of the tension short section and a sensor of the tension short section, a second connecting piece 32 is connected with the other of the outer cylinder of the tension short section and the sensor of the tension short section, a pressure gauge 3 is arranged at a pressure gauge interface 21, pressure oil is supplied into a rodless cavity through a first pressure oil interface 22, the sensor is calibrated by observing the numerical value of the pressure gauge 3, and real-time calibration of the sensor of the tension short section on the ground is realized.
Optionally, the calibration device of the tension sub further includes: and a pressure gauge 3 connected to the pressure gauge port 21 for reading the pressure of the supplied pressure oil when the sensor is calibrated (in response to the pulling force applied to the sensor by the telescopic cylinder).
Preferably, the piston rod 11 comprises a plurality of piston rods which are uniformly distributed in the circumferential direction, so that the pulling force applied to the sensor is more uniform, and the scales are more accurate.
In particular, the plurality of piston rods 11 are connected to the end face or the outer side face of the first connecting piece 31, so that the installation of the tension nipple into the area enclosed by the telescopic cylinder is not affected.
The purpose of the present application can be achieved by two, three or four piston rods 11, which do not depart from the design concept of the present invention and are not described herein again.
Further, the inner side surface of the first connecting piece 31 is provided with connecting threads, the inner side surface of the second connecting piece 32 is also provided with connecting threads, one end of the sensor close to the outer cylinder is connected to the outer cylinder, one end of the sensor far away from the outer cylinder is provided with a connecting shaft, the first connecting piece 31 is connected with the outer cylinder through a thread structure, and the second connecting piece 32 is connected with the connecting shaft through a thread structure.
Alternatively, the second connecting element 32 is fixed to the outer bottom surface of the piston cylinder 12 by an end surface, so that the installation of the tension nipple into the area enclosed by the telescopic cylinder is not affected.
Preferably, the telescopic cylinder is an oil cylinder, the pressure of the telescopic cylinder is stable, and the accuracy of the scales is ensured.
Namely: the tension nipple comprises an outer cylinder, a sensor and a connecting shaft, and the sensor is located between the outer cylinder and the connecting shaft. One end of the sensor is connected to the outer cylinder, and the other end of the sensor is connected to the connecting shaft.
In summary, according to the calibration device for the tension nipple, the tension nipple is installed in an area defined by a telescopic cylinder, a first connecting piece is connected with one of an outer cylinder of the tension nipple and a sensor of the tension nipple, a second connecting piece is connected with the other of the outer cylinder of the tension nipple and the sensor of the tension nipple, a pressure gauge is installed at a pressure gauge interface, pressure oil is supplied into a rodless cavity through a first pressure oil interface, the sensor is calibrated by observing the numerical value of the pressure gauge, and real-time calibration of the sensor of the tension nipple on the ground is achieved.
In the description herein, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., "connected" may be a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms herein can be understood by those of ordinary skill in the art as appropriate.
In the description of the specification, reference to the term "one embodiment," "some embodiments," "a specific embodiment," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example herein. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although the embodiments disclosed herein are described above, the descriptions are only for the convenience of understanding the embodiments and are not intended to limit the disclosure. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure, and that the scope of the disclosure herein may be limited only by the appended claims.
Claims (10)
1. A calibration device for a tension short section is characterized by comprising:
the telescopic cylinder is provided with a piston rod and an annular piston cylinder, one end of the piston rod extends out of the top surface of the piston cylinder, a pressure gauge interface and a first pressure oil interface which are communicated with a rodless cavity are arranged on the piston cylinder, a second pressure oil interface which is communicated with a rod cavity is also arranged on the piston cylinder, and the tension nipple is arranged in an area defined by the telescopic cylinder;
the annular first connecting piece is arranged on the piston rod and is used for being connected with one of the outer cylinder of the tension short section and the sensor of the tension short section; and
and the annular second connecting piece is arranged on the piston cylinder and is used for being connected with the other one of the outer cylinder of the tension short section and the sensor of the tension short section.
2. The tension sub calibration device according to claim 1, further comprising:
and the pressure gauge is connected to the pressure gauge interface.
3. The tension sub calibration device according to claim 1 or 2, wherein the piston rod comprises a plurality of rods which are uniformly distributed in the circumferential direction.
4. The tension sub calibration device according to claim 3, wherein a plurality of said piston rods are connected to the end face or the outer side face of said first connector.
5. The tension sub calibration device according to claim 3, wherein there are two piston rods.
6. A calibration device for a tension sub according to claim 1 or 2, wherein the inner side surface of the first connecting piece is provided with connecting threads.
7. A calibration device for a tension sub according to claim 1 or 2, wherein the second connecting member is fixed on the outer bottom surface of the piston cylinder by an end surface.
8. The tension sub calibration device according to claim 7, wherein the inner side surface of the second connecting member is provided with connecting threads.
9. A calibration device for a tension sub according to claim 1 or 2, wherein the telescopic cylinder is a cylinder.
10. The calibration device for the tension sub as claimed in claim 1 or 2, wherein a connecting shaft is mounted at one end of the sensor far away from the outer cylinder, the first connecting piece is connected with the outer cylinder, and the second connecting piece is connected with the connecting shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810150814.1A CN108398205B (en) | 2018-02-13 | 2018-02-13 | Calibration device for tension nipple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810150814.1A CN108398205B (en) | 2018-02-13 | 2018-02-13 | Calibration device for tension nipple |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108398205A CN108398205A (en) | 2018-08-14 |
| CN108398205B true CN108398205B (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810150814.1A Active CN108398205B (en) | 2018-02-13 | 2018-02-13 | Calibration device for tension nipple |
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| Country | Link |
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| CN (1) | CN108398205B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109323994B (en) * | 2018-11-19 | 2021-01-29 | 中国海洋石油集团有限公司 | Calibration method and device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4334399A1 (en) * | 1993-10-08 | 1995-04-13 | Siemens Ag | Measuring sensor and method for determining tensile stresses in an elongate material |
| CN1718998A (en) * | 2005-07-07 | 2006-01-11 | 中国石化集团胜利石油管理局测井公司 | Tension nipple of under well logging instrument |
| CN101117885B (en) * | 2007-08-28 | 2010-09-29 | 广汉川油井控装备有限公司 | Well control method for changing valve under pressure |
| CN204729018U (en) * | 2015-06-19 | 2015-10-28 | 中国石油大学(华东) | Bottom hole pressure difference pipe nipple falls in a kind of batch (-type) |
| CN205483368U (en) * | 2016-02-04 | 2016-08-17 | 中石化石油工程技术服务有限公司 | Real -time tension of passive cable in pit monitoring nipple joint |
| CN206458453U (en) * | 2016-12-24 | 2017-09-01 | 中石化石油工程技术服务有限公司 | Logger tension nipple detection device |
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2018
- 2018-02-13 CN CN201810150814.1A patent/CN108398205B/en active Active
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| CN108398205A (en) | 2018-08-14 |
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