CN111997590A - Tension nipple for logging instrument - Google Patents
Tension nipple for logging instrument Download PDFInfo
- Publication number
- CN111997590A CN111997590A CN202010938921.8A CN202010938921A CN111997590A CN 111997590 A CN111997590 A CN 111997590A CN 202010938921 A CN202010938921 A CN 202010938921A CN 111997590 A CN111997590 A CN 111997590A
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- Prior art keywords
- tension
- hole
- outer side
- tension shaft
- joint
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 210000002445 nipple Anatomy 0.000 title claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 31
- 238000000034 method Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
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- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to the technical field of underground exploration, in particular to a tension nipple for a logging instrument, which comprises an upper joint, a tension shaft, a sensor sheath, a tension sensor, a pressure sensor and a lower joint, wherein the lower joint is provided with an installation hole with an upward opening, the tension shaft with the upper part positioned above the lower joint is arranged in the installation hole, the outer side of the middle part of the tension shaft is provided with an outer ring platform positioned above the lower joint, and the outer side of the tension shaft corresponding to the position between the outer ring platform and the lower joint is provided with the pressure sensor. The pressure sensor is reasonable and compact in structure and convenient to use, and after the underground descending is blocked, the detection gap has a reduction trend by lowering the instrument string, so that the pressure sensor is pressed to generate a signal to measure the actual pressure of the instrument string in real time; after the downhole upward card occurs, the detection gap tends to increase by lifting the instrument string, so that the tension sensor is pulled to generate a signal to measure the actual tension of the instrument string in real time, and the method has the characteristics of accuracy, high efficiency and quickness.
Description
Technical Field
The invention relates to the technical field of underground exploration, in particular to a tension nipple for a logging instrument.
Background
When the instrument is lowered or lifted in the actual logging, the phenomenon of card contact is frequently caused, and when the instrument is in card contact, the phenomenon that a cable meets the card or the phenomenon that the instrument meets the card is difficult to distinguish. If misjudgment, adverse measures can be taken, which can cause cable breakage or well wall collapse, seriously affect the smooth completion of the logging task and increase the logging cost. Whether the cable meets the card or the instrument meets the card is correctly judged, and the method has important significance for improving the logging efficiency and reducing the logging cost. Therefore, the real state of the underground instrument string can be accurately judged only by combining the tension value of the underground instrument string and the tension value of the cable, and the existing measuring instrument string has the problem that the actual tension or pressure of the measuring instrument string cannot be measured in real time after the underground instrument string is blocked.
Disclosure of Invention
The invention provides a tension nipple for a logging instrument, overcomes the defects of the prior art, and can effectively solve the problem that the actual tension or pressure of the existing measuring instrument string cannot be measured in real time after the existing measuring instrument string is subjected to underground blockage.
The technical scheme of the invention is realized by the following measures: a tension nipple for a logging instrument comprises an upper joint, a tension shaft, a sensor sheath, a tension sensor, a pressure sensor and a lower joint, wherein the lower joint is provided with a mounting hole with an upward opening, the mounting hole is internally provided with the tension shaft with the upper part positioned above the lower joint, the outer side of the middle part of the tension shaft is provided with an outer ring platform positioned above the lower joint, the outer side of the tension shaft corresponding to the position between the outer ring platform and the lower joint is provided with the pressure sensor, the outer side of the middle part of the tension shaft is provided with the sensor sheath with the upper end positioned above the outer ring platform, the inner side of the lower end of the sensor sheath is fixedly installed with the outer side of the upper end of the lower joint together, the inner ring platform is arranged on the inner side of the upper end of the sensor, the outer side of the tension shaft corresponding to the position between the inner ring platform and the outer ring platform is provided with the, the upper end of the sensor sheath is positioned in the inner ring groove, and the gap between the upper end of the sensor sheath and the upper end of the inner ring groove is called a detection gap.
The following is further optimization or/and improvement of the technical scheme of the invention:
the above-mentioned also can include the locknut, the top of the top connection is equipped with the locknut fixedly mounted on the outside of the upper end of the tension shaft.
The upper joint can be fixedly installed together with the outer side of the upper part of the tension shaft through threaded connection, and the inner side of the lower end of the sensor sheath is fixedly installed together with the outer side of the upper end of the lower joint through threaded connection.
The sealing device also comprises an O-shaped sealing ring, wherein at least one upper sealing ring groove is arranged on the outer side of the middle part of the upper joint at intervals from top to bottom, and the O-shaped sealing ring is arranged in the upper sealing ring groove; at least one O-shaped sealing ring is arranged between the sensor sheath and the lower joint at intervals up and down; at least one lower sealing ring groove is arranged at the outer side of the lower part of the lower joint at intervals up and down, and an O-shaped sealing ring is arranged in the lower sealing ring groove.
The tension shaft can be provided with a wire routing hole, the wire routing hole comprises a vertical blind hole and a via hole, the upper end of the tension shaft is provided with the vertical blind hole with an upward opening, and the outer side of the outer ring table is provided with the via hole capable of being communicated with the vertical hole.
The anti-rotation device can further comprise an anti-rotation pin, an inner anti-rotation hole which is radially communicated is formed in the outer side of the lower portion of the tension shaft, an outer anti-rotation hole is formed in the outer side of the lower joint corresponding to the position of the inner anti-rotation hole, and an anti-rotation pin which is arranged in the inner anti-rotation hole is fixedly arranged in the outer anti-rotation hole.
The pressure sensor is reasonable and compact in structure and convenient to use, and after the underground descending is blocked, the detection gap has a reduction trend by lowering the instrument string, so that the pressure sensor is pressed to generate a signal to measure the actual pressure of the instrument string in real time; after the underground ascending encountering card occurs, the detecting gap tends to increase by lifting the instrument string, so that the tension sensor is pulled to generate a signal to measure the actual tension of the instrument string in real time; has the characteristics of accuracy, high efficiency and rapidness.
Drawings
FIG. 1 is a schematic sectional view of the preferred embodiment of the present invention.
The codes in the figures are respectively: the device comprises an upper joint 1, a tension shaft 2, a sensor sheath 3, a tension sensor 4, a pressure sensor 5, a lower joint 6, a locknut 7, an anti-rotation pin 8, an O-shaped sealing ring 9, a vertical blind hole 10, a through hole 11, an outer annular table 12, an inner annular table 13, an outer annular groove 14, an inner annular groove 15, a mounting hole 16 and a detection gap 17.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative positional relationship of the components is described according to the layout pattern of fig. 1 of the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.
The invention is further described with reference to the following examples and figures:
as shown in the attached figure 1, the tension nipple for the logging instrument comprises an upper joint 1, a tension shaft 2, a sensor sheath 3, a tension sensor 4, a pressure sensor 5 and a lower joint 6, wherein the lower joint 6 is provided with a mounting hole 16 with an upward opening, the mounting hole 16 is internally provided with the tension shaft 2 with the upper part positioned above the lower joint 6, the outer side of the middle part of the tension shaft 2 is provided with an outer ring platform 12 positioned above the lower joint 6, the outer side of the tension shaft 2 corresponding to the position between the outer ring platform 12 and the lower joint 6 is provided with the pressure sensor 5, the outer side of the middle part of the tension shaft 2 is provided with the sensor sheath 3 with the upper end positioned above the outer ring platform 12, the inner side of the lower end of the sensor sheath 3 is fixedly installed with the outer side of the upper end of the lower joint 6, the inner ring platform 13 is arranged on the inner side of the upper end of the sensor, the tension sensor 4 is arranged on the outer side, an inner ring groove 15 is arranged on the inner side of the lower end of the upper joint 1, an outer ring groove 14 is arranged on the outer side of the upper end of the sensor sheath 3, the upper end of the sensor sheath 3 is positioned in the inner ring groove 15, and a gap between the upper end of the sensor sheath 3 and the upper end of the inner ring groove 15 is called a detection gap 17. In the using process, the invention is connected into the existing well-known logging instrument string, after the downhole descending is met with the resistance, the instrument string is put down, so that the detection gap 17 has the trend of reducing, and under the action of the outer ring table 12 and the lower joint 6, the pressure sensor 5 is pressed to generate a signal to measure the actual pressure of the instrument string in real time; after the occurrence of the downhole ascending encountering card, the detecting gap 17 has an increasing trend by lifting the instrument string, and under the action of the inner annular table 13 and the outer annular table 12, the tension sensor 4 is pulled to generate a signal to measure the actual tension of the instrument string in real time.
The tension nipple for the logging instrument can be further optimized or/and improved according to actual needs:
as shown in the attached figure 1, the tension shaft device also comprises a locknut 7, and the locknut 7 fixedly installed on the outer side of the upper end of the tension shaft 2 is arranged above the upper joint 1. In the use, through setting up locknut 7, avoid top connection 1 and tension shaft 2 not hard up.
As shown in the attached figure 1, the upper joint 1 and the outer side of the upper part of the tension shaft 2 are fixedly installed together through threaded connection, and the inner side of the lower end of the sensor sheath 3 and the outer side of the upper end of the lower joint 6 are fixedly installed together through threaded connection. In the use, through threaded connection's mounting means, be convenient for each parts between installation and dismantlement.
As shown in the attached figure 1, the pipe joint further comprises an O-shaped sealing ring 9, at least one upper sealing ring groove is arranged on the outer side of the middle part of the upper joint 1 at intervals from top to bottom, and the O-shaped sealing ring 9 is arranged in the upper sealing ring groove; at least one O-shaped sealing ring 9 is arranged between the sensor sheath 3 and the lower joint 6 at intervals up and down; at least one lower sealing ring groove is arranged at the outer side of the lower part of the lower joint 6 at intervals up and down, and an O-shaped sealing ring 9 is arranged in the lower sealing ring groove. The sealing performance of the inner part of the invention is ensured by the arrangement during the use process.
As shown in fig. 1, a wire routing hole is formed in the tension shaft 2, the wire routing hole comprises a vertical blind hole 10 and a via hole 11, the vertical blind hole 10 with an upward opening is formed in the upper end of the tension shaft 2, and the via hole 11 capable of being communicated with the vertical hole is formed in the outer side of the outer ring table 12. In the use, through setting up the line hole, the pressure sensor 5 of being convenient for and tension sensor 4 and instrument cluster wired connection, transmission data.
As shown in the attached drawing 1, the anti-rotation device further comprises an anti-rotation pin 8, an inner anti-rotation hole which is radially communicated is formed in the outer side of the lower portion of the tension shaft 2, an outer anti-rotation hole is formed in the outer side of the lower connector 6 corresponding to the position of the inner anti-rotation hole, and the anti-rotation pin 8 in the inner anti-rotation hole is fixedly installed in the outer anti-rotation hole. In the use process, the tension shaft 2 is prevented from rotating by arranging the anti-rotation pin 8.
The above technical features constitute the best embodiment of the present invention, which has strong adaptability and best implementation effect, and unnecessary technical features can be increased or decreased according to actual needs to meet the requirements of different situations.
Claims (10)
1. A tension nipple for a logging instrument is characterized by comprising an upper joint, a tension shaft, a sensor sheath, a tension sensor, a pressure sensor and a lower joint, wherein the lower joint is provided with a mounting hole with an upward opening, the tension shaft with the upper part positioned above the lower joint is arranged in the mounting hole, an outer ring platform positioned above the lower joint is arranged on the outer side of the middle part of the tension shaft, the pressure sensor is arranged on the outer side of the tension shaft corresponding to the position between the outer ring platform and the lower joint, the sensor sheath with the upper end positioned above the outer ring platform is arranged on the outer side of the middle part of the tension shaft, the inner side of the lower end of the sensor sheath is fixedly installed with the outer side of the upper end of the lower joint together, an inner ring platform is arranged on the inner side of the upper end of the sensor, the tension sensor is arranged on the outer side of the tension shaft corresponding to the position between the inner ring platform and the outer ring platform, the upper end of the sensor sheath is positioned in the inner ring groove, and the gap between the upper end of the sensor sheath and the upper end of the inner ring groove is called a detection gap.
2. The tension nipple for logging instrument according to claim 1, further comprising a locknut, wherein the locknut is fixedly installed on the upper end of the tension shaft and outside the upper joint.
3. The tension sub for logging instrument according to claim 1 or 2, wherein the upper joint is fixedly mounted with the outer side of the upper part of the tension shaft through threaded connection, and the inner side of the lower end of the sensor sheath is fixedly mounted with the outer side of the upper end of the lower joint through threaded connection.
4. The tension nipple for logging instrument according to claim 1 or 2, further comprising an O-ring seal, wherein at least one upper ring groove is formed in the outer side of the middle portion of the upper joint at intervals up and down, and the O-ring seal is arranged in the upper ring groove; at least one O-shaped sealing ring is arranged between the sensor sheath and the lower joint at intervals up and down; at least one lower sealing ring groove is arranged at the outer side of the lower part of the lower joint at intervals up and down, and an O-shaped sealing ring is arranged in the lower sealing ring groove.
5. The tension nipple for logging instrument according to claim 5, further comprising an O-shaped sealing ring, wherein at least one upper sealing ring groove is arranged on the outer side of the middle part of the upper joint at intervals up and down, and the O-shaped sealing ring is arranged in the upper sealing ring groove; at least one O-shaped sealing ring is arranged between the sensor sheath and the lower joint at intervals up and down; at least one lower sealing ring groove is arranged at the outer side of the lower part of the lower joint at intervals up and down, and an O-shaped sealing ring is arranged in the lower sealing ring groove.
6. A tension nipple for a logging instrument according to claim 1, 2 or 5, wherein the tension shaft is provided with a wire-passing hole, the wire-passing hole comprises a vertical blind hole and a through hole, the upper end of the tension shaft is provided with a vertical blind hole with an upward opening, and the outer side of the outer ring table is provided with a through hole capable of communicating with the vertical hole.
7. The tension nipple for logging instrument according to claim 3, wherein the tension shaft is provided with a wire-passing hole, the wire-passing hole comprises a blind vertical hole and a through hole, the upper end of the tension shaft is provided with a blind vertical hole with an upward opening, and the outer side of the outer ring platform is provided with the through hole capable of communicating with the vertical hole.
8. The tension nipple for logging instrument according to claim 4, wherein the tension shaft is provided with a wire-passing hole, the wire-passing hole comprises a blind vertical hole and a through hole, the upper end of the tension shaft is provided with a blind vertical hole with an upward opening, and the outer side of the outer ring platform is provided with the through hole capable of communicating with the vertical hole.
9. The tension nipple joint for the logging instrument according to claim 1, 2, 5, 7 or 8, further comprising an anti-rotation pin, wherein an inner anti-rotation hole is formed in the outer side of the lower portion of the tension shaft in a radial direction, an outer anti-rotation hole is formed in the outer side of the lower joint corresponding to the position of the inner anti-rotation hole, and the anti-rotation pin is fixedly installed in the inner end of the outer anti-rotation hole and is arranged in the inner anti-rotation hole.
10. The tension nipple for the logging instrument according to claim 6, further comprising an anti-rotation pin, wherein an inner anti-rotation hole is radially formed in the outer side of the lower portion of the tension shaft, an outer anti-rotation hole is formed in the outer side of the lower joint corresponding to the position of the inner anti-rotation hole, and the anti-rotation pin in the inner anti-rotation hole is fixedly installed in the outer anti-rotation hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010938921.8A CN111997590A (en) | 2020-09-09 | 2020-09-09 | Tension nipple for logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010938921.8A CN111997590A (en) | 2020-09-09 | 2020-09-09 | Tension nipple for logging instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111997590A true CN111997590A (en) | 2020-11-27 |
Family
ID=73469008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010938921.8A Pending CN111997590A (en) | 2020-09-09 | 2020-09-09 | Tension nipple for logging instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111997590A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112945746A (en) * | 2021-02-02 | 2021-06-11 | 北京精诚恒通工程技术检测有限公司 | Universal testing machine free of replacing clamp |
| CN113294140A (en) * | 2021-04-15 | 2021-08-24 | 中石化石油工程技术服务有限公司 | Perforation tensiometer |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4265110A (en) * | 1978-06-30 | 1981-05-05 | Schlumberger Technology Corp. | Downhole cable tension measuring apparatus |
| FR2620821A1 (en) * | 1987-09-17 | 1989-03-24 | Inst Francais Du Petrole | Device for indicating tension between a member and a linkage element |
| 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 |
| CN201292838Y (en) * | 2008-11-24 | 2009-08-19 | 中国石油集团长城钻探工程有限公司 | Pipe column state detection device |
| CN203547728U (en) * | 2013-07-29 | 2014-04-16 | 杭州瑞利声电技术公司 | Small tension and pressure logger |
| CN105507879A (en) * | 2015-12-24 | 2016-04-20 | 武汉海王机电工程技术公司 | Rotary nipple with pressure balancing mechanism |
| CN205297534U (en) * | 2015-12-18 | 2016-06-08 | 杭州瑞利声电技术公司 | Antidetonation tension magnetic localization logging instrument |
| CN205876295U (en) * | 2016-08-05 | 2017-01-11 | 西安思坦仪器股份有限公司 | Logging instrument tension measurement equipment |
| US20190032470A1 (en) * | 2016-01-25 | 2019-01-31 | Impact Selector International, Llc | Downhole tension sensing apparatus |
| CN209430187U (en) * | 2018-11-08 | 2019-09-24 | 杭州丰禾测控技术有限公司 | A kind of non-maintaining three parameter logging instruments device |
| CN210509144U (en) * | 2019-09-05 | 2020-05-12 | 陕西华晨石油科技有限公司 | Perforation tensiometer |
-
2020
- 2020-09-09 CN CN202010938921.8A patent/CN111997590A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4265110A (en) * | 1978-06-30 | 1981-05-05 | Schlumberger Technology Corp. | Downhole cable tension measuring apparatus |
| FR2620821A1 (en) * | 1987-09-17 | 1989-03-24 | Inst Francais Du Petrole | Device for indicating tension between a member and a linkage element |
| 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 |
| CN201292838Y (en) * | 2008-11-24 | 2009-08-19 | 中国石油集团长城钻探工程有限公司 | Pipe column state detection device |
| CN203547728U (en) * | 2013-07-29 | 2014-04-16 | 杭州瑞利声电技术公司 | Small tension and pressure logger |
| CN205297534U (en) * | 2015-12-18 | 2016-06-08 | 杭州瑞利声电技术公司 | Antidetonation tension magnetic localization logging instrument |
| CN105507879A (en) * | 2015-12-24 | 2016-04-20 | 武汉海王机电工程技术公司 | Rotary nipple with pressure balancing mechanism |
| US20190032470A1 (en) * | 2016-01-25 | 2019-01-31 | Impact Selector International, Llc | Downhole tension sensing apparatus |
| CN205876295U (en) * | 2016-08-05 | 2017-01-11 | 西安思坦仪器股份有限公司 | Logging instrument tension measurement equipment |
| CN209430187U (en) * | 2018-11-08 | 2019-09-24 | 杭州丰禾测控技术有限公司 | A kind of non-maintaining three parameter logging instruments device |
| CN210509144U (en) * | 2019-09-05 | 2020-05-12 | 陕西华晨石油科技有限公司 | Perforation tensiometer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112945746A (en) * | 2021-02-02 | 2021-06-11 | 北京精诚恒通工程技术检测有限公司 | Universal testing machine free of replacing clamp |
| CN113294140A (en) * | 2021-04-15 | 2021-08-24 | 中石化石油工程技术服务有限公司 | Perforation tensiometer |
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Application publication date: 20201127 |
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