CN217055129U - Downhole logging instrument - Google Patents
Downhole logging instrument Download PDFInfo
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- CN217055129U CN217055129U CN202220198614.5U CN202220198614U CN217055129U CN 217055129 U CN217055129 U CN 217055129U CN 202220198614 U CN202220198614 U CN 202220198614U CN 217055129 U CN217055129 U CN 217055129U
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Abstract
The utility model discloses a logging instrument in pit, include: a connecting end; the first tension end is fixedly connected with the connecting end; a second tension end slidably connected to the first tension end; one end of the tension meter is in threaded connection with the first tension end, and the other end of the tension meter is in threaded connection with the second tension end; a sealed cavity is formed between the first tension end and the second tension end, and the tensiometer is positioned in the sealed cavity; the connecting end and the first tension end are arranged in an oil cavity, the oil cavity is communicated with the sealed cavity, and hydraulic oil is filled in the oil cavity; a test end fixedly connected with the second tension end. The utility model provides a pair of logging instrument in pit not only can alleviate the friction between the inside each part of logging instrument through hydraulic oil, can also balance inside hydraulic pressure, avoids hydraulic pressure to produce and changes to guaranteed tension measurement result's accuracy, more convenient to use person uses.
Description
Technical Field
The utility model relates to a logging equipment technical field specifically is a logging instrument in pit.
Background
The logging equipment has important significance for petroleum exploration and development, the logging equipment and the logging technology are applied to detect a mine, so that various physical information such as force, heat, nuclear and the like in an underground environment can be effectively acquired, the data information is analyzed, the thickness and the position of an oil gas layer in an oil field range can be effectively explained, and performance parameters related to exploitation can be determined.
The existing logging instrument adopts a mechanical measurement mode when measuring the tension of a cable, but friction is generated among all parts in the measurement process, so that the result is not accurate, the service life is also shortened, sealing needs to be kept when lubricating oil is added to reduce the friction force, and the measurement result is inaccurate due to the relationship of internal pressure.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a logging instrument in pit, the purpose is solved current logging instrument and when measuring cable tension, adopts mechanical measurement's mode, but can produce the friction between each part in the measurement process, not only the result is inaccurate, has still reduced life, and when adding lubricating oil and reducing frictional force, need keep sealed, because the relation of inside pressure, the inaccurate problem of measuring result that can be.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a downhole logging tool, comprising:
a connecting end; and
the first tension end is fixedly connected with the connecting end;
a second tension end slidably connected to the first tension end;
one end of the tension meter is in threaded connection with the first tension end, and the other end of the tension meter is in threaded connection with the second tension end;
a sealed cavity is formed between the first tension end and the second tension end, and the tensiometer is positioned in the sealed cavity;
the connecting end and the first tension end are arranged in an oil cavity, the oil cavity is communicated with the sealed cavity, and hydraulic oil is filled in the oil cavity;
the test end is fixedly connected with the second tension end;
the circuit board is fixedly arranged inside the testing end and is electrically connected with the tension meter;
and the temperature sensor is electrically connected with the circuit board and is positioned inside the test end.
Preferably, the connection end includes, in its inside:
the sealing sleeve is positioned in the connecting end and is fixedly connected with the first tension end;
the sealing joint is fixedly connected with the sealing sleeve and is in sealing connection with the connecting end;
a first sealing plug disposed inside the sealing joint;
the through holes are formed in the sealing sleeve;
the connecting cavity is arranged in the sealing sleeve and communicated with the through hole;
and the balance piston is slidably sleeved outside the first tension end, is positioned inside the connecting end and is hermetically connected with the first tension end and the connecting end.
Preferably, a movable cavity is formed between the first tension end and the connecting end, the balance piston is located in the movable cavity, and the movable cavity is communicated with the through hole.
Preferably, the first tension end is internally provided with:
the first threaded sleeve is sleeved outside the first tension end, and the connecting end is fixedly connected with the first tension end through the first threaded sleeve;
the oil hole is formed in the first tension end and communicated with the connecting cavity;
and the oil filling plug is arranged inside the first tension end and used for adding hydraulic oil.
Preferably, the oil hole, the connecting cavity, the via hole and the movable cavity form the oil cavity.
Preferably, the inside of the second tension end is provided with a limit hole, the outside of the first tension end is in threaded connection with a limit screw, the limit screw extends to the inside of the limit hole, and the diameter of the limit hole is larger than that of the limit screw.
Preferably, the second tension end is internally provided with:
the overflow valve is arranged inside the second tension end;
the inner part of the second tension end is arranged in an air hole, and the air hole is communicated with the outside and the sealed cavity;
the air hole sealing nail is in threaded connection with the second tension end and is in sealing connection with the air hole;
the second threaded sleeve is sleeved outside the second tension end, and the test end is fixedly connected with the second tension end through the second threaded sleeve;
a second sealing plug disposed inside the second tension end.
Compared with the prior art, the utility model discloses possess following beneficial effect:
the utility model provides a pair of logging instrument in pit not only can alleviate the friction between the inside each part of logging instrument through hydraulic oil, can also balance inside hydraulic pressure, avoids hydraulic pressure to produce and changes to guaranteed tension measurement result's accuracy, more convenient to use person uses.
Drawings
Fig. 1 is a schematic structural view of a downhole logging tool according to the present invention;
fig. 2 is a schematic structural diagram of the first tension end of the present invention;
fig. 3 is a schematic structural view of the tensiometer of the present invention;
fig. 4 is a schematic structural view of the second tension end of the present invention.
In the figure: the device comprises a 10 connecting end, 11 sealing sleeves, 12 sealing joints, 13 first sealing plugs, 14 through holes, 15 connecting cavities, 16 balance pistons, 20 first tension ends, 21 first thread sleeves, 22 oil holes, 23 movable cavities, 24 oil filling plugs, 25 limit screws, 30 second tension ends, 31 overflow valves, 32 air hole sealing nails, 33 second thread sleeves, 34 second sealing plugs, 40 tensiometers, 50 testing ends, 60 circuit boards and 61 temperature sensors.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Referring to fig. 1-4, a downhole logging tool includes: a connection end 10; and a first tension end 20 fixedly connected with the connection end 10; a second tension end 30 slidably connected to the first tension end 20; a tension meter 40 having one end screw-coupled to the first tension terminal 20 and the other end screw-coupled to the second tension terminal 30; a sealed cavity is formed between the first tension end 20 and the second tension end 30, and the tension meter 40 is positioned in the sealed cavity; the connecting end 10 and the first tension end 20 are arranged between the oil cavities, the oil cavities are communicated with the sealed cavity, and hydraulic oil is filled in the oil cavities; a test end 50 fixedly connected to the second tension end 30; a circuit board 60 fixedly installed inside the test terminal 50 and electrically connected to the tension meter 40; and a temperature sensor 61 electrically connected to the circuit board 60 and located inside the test terminal 50.
When the tension measuring device is used, the connecting end 10 and the testing end 50 are respectively connected with a cable, when tension is generated, the connecting end 10 and the testing end 50 are pulled, so that the first tension end 20 and the second tension end 30 are pulled, finally, the pulling force is transmitted to the tension meter 40, the tension can be measured, the friction between the first tension end 20 and the second tension end 30 and the tension meter 40 can be reduced by filling hydraulic oil in the sealed cavity and the oil cavity, and the accuracy of the measuring result of the tension meter 40 is ensured.
The inside of the connection terminal 10 includes: the sealing sleeve 11 is positioned inside the connecting end 10 and is fixedly connected with the first tension end 20; the sealing joint 12 is fixedly connected with the sealing sleeve 11 and is in sealing connection with the connecting end 10; a first sealing plug 13 provided inside the sealing joint 12; a plurality of via holes 14 opened inside the seal cover 11; a connecting cavity 15 which is opened inside the sealing sleeve 11 and communicated with the via hole 14; and the balance piston 16 is slidably sleeved outside the first tension end 20, is positioned inside the connecting end 10, and is hermetically connected with the first tension end 20 and the connecting end 10.
The sealing at the connection end 10 is ensured by the sealing joint 12 and the first sealing plug 13.
The first tension end 20 and the connecting end 10 form a movable cavity 23 therebetween, the balance piston 16 is positioned in the movable cavity 23, and the movable cavity 23 is communicated with the through hole 14.
The first tension end 20 is internally provided with: the first threaded sleeve 21 is sleeved outside the first tension end 20, and the connecting end 10 is fixedly connected with the first tension end 20 through the first threaded sleeve; an oil hole 22 opened inside the first tension end 20 and communicating with the connection chamber 15; and an oil filling plug 24 arranged inside the first tension end 20 for adding hydraulic oil.
The oil hole 22, the connecting cavity 15, the through hole 14 and the movable cavity 23 form an oil chamber.
When using, when appearing dragging, the effect of tension can make tensiometer 40 elongated slightly, form relative displacement between first tension end 20 and the second tension end 30, thereby make seal chamber volume grow, thereby can make inside hydraulic pressure change, at this moment under the effect of atmospheric pressure, can promote balanced piston 16 and remove, so that the inside hydraulic oil in activity chamber 23 loops through via hole 14, it supplements in the seal chamber to connect chamber 15 and oilhole 22, change because of the seal chamber volume that drags and produce in order to balance, make the shared space of inside hydraulic oil still unchangeable, and then make hydraulic pressure can keep unchangeable, thereby avoided the hydraulic pressure to the harmful effects who produces tensiometer 40, make the tension that tensiometer 40 surveyed more accurate.
The inside of second tension end 30 is seted up in spacing hole, and the outside threaded connection of first tension end 20 has stop screw 25, and stop screw 25 extends to the inside in spacing hole, and the diameter in spacing hole is greater than stop screw 25's diameter.
During the pulling process, a relative displacement is formed between the first tension end 20 and the second tension end 30, at this time, the limit screw 25 slides in the limit hole, and when the pressure is too large, the limit hole limits the movement of the limit screw 25, so that the relative movement between the first tension end 20 and the second tension end 30 is limited, and the tensiometer 40 is prevented from being pulled apart.
The second tension end 30 is internally provided with: a relief valve 31 provided inside the second tension end 30; the interior of the second tension end 30 is opened at an air hole which is communicated with the outside and the sealed cavity; a vent sealing nail 32 which is in threaded connection with the second tension end 30 and is in sealing connection with the vent; the second threaded sleeve 33 is sleeved outside the second tension end 30, and the test end 50 is fixedly connected with the second tension end 30 through the second threaded sleeve; a second sealing plug 34 disposed inside the second tension end 30.
When adding oil, take off gas pocket seal nail 32, then through oiling stopper 24 department to the inside addition hydraulic oil of oilhole 22, hydraulic oil can be organized and fill up oilhole 22, connect chamber 15, via hole 14, activity chamber 23, gas pocket and seal chamber, inside gas is then got rid of through the gas pocket simultaneously, and when hydraulic oil filled up the back, it can accomplish sealedly to twist gas pocket seal nail 32, easy operation is convenient for adjust hydraulic oil.
To sum up, the utility model provides a pair of logging instrument in pit not only can alleviate the friction between the inside each part of logging instrument through hydraulic oil, can also balance inside hydraulic pressure, avoids hydraulic pressure to produce and changes to guarantee tension measurement result's accuracy, more convenient to use person uses.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A downhole logging instrument, comprising:
a connection end (10); and
a first tension end (20) which is fixedly connected to the connection end (10);
a second tension end (30) slidably connected to the first tension end (20);
a tension meter (40) having one end in threaded connection with the first tension end (20) and the other end in threaded connection with the second tension end (30);
a sealed cavity is formed between the first tension end (20) and the second tension end (30), and the tension meter (40) is positioned in the sealed cavity;
an oil cavity is arranged between the connecting end (10) and the first tension end (20), the oil cavity is communicated with the sealed cavity, and hydraulic oil is filled in the oil cavity;
a test end (50) fixedly connected to the second tension end (30);
a circuit board (60) fixedly mounted inside the test terminal (50) and electrically connected with the tension meter (40);
a temperature sensor (61) electrically connected to the circuit board (60) and located inside the testing end (50).
2. A downhole logging tool according to claim 1, wherein: the interior of the connection end (10) comprises:
the sealing sleeve (11) is positioned inside the connecting end (10) and is fixedly connected with the first tension end (20);
the sealing joint (12) is fixedly connected with the sealing sleeve (11) and is in sealing connection with the connecting end (10);
a first sealing plug (13) arranged inside the sealing joint (12);
a plurality of through holes (14) which are opened in the sealing sleeve (11);
the connecting cavity (15) is arranged in the sealing sleeve (11) and communicated with the through hole (14);
the balance piston (16) is sleeved outside the first tension end (20) in a sliding mode, is located inside the connecting end (10), and is connected with the first tension end (20) and the connecting end (10) in a sealing mode.
3. A downhole logging tool according to claim 2, wherein: a movable cavity (23) is formed between the first tension end (20) and the connecting end (10), the balance piston (16) is located in the movable cavity (23), and the movable cavity (23) is communicated with the through hole (14).
4. A downhole logging tool according to claim 3, wherein: the first tension end (20) is internally provided with:
the first threaded sleeve (21) is sleeved outside the first tension end (20), and the connecting end (10) is fixedly connected with the first tension end (20) through the first threaded sleeve;
an oil hole (22) which is opened inside the first tension end (20) and is communicated with the connecting cavity (15);
an oil plug (24) disposed inside the first tension end (20) for adding hydraulic oil.
5. A downhole logging instrument according to claim 4, wherein: the oil hole (22), the connecting cavity (15), the via hole (14) and the movable cavity (23) form the oil cavity.
6. A downhole logging tool according to claim 1, wherein: the inside of second tension end (30) is seted up in spacing hole, the outside threaded connection of first tension end (20) has stop screw (25), stop screw (25) extend to the inside in spacing hole, the diameter in spacing hole is greater than the diameter of stop screw (25).
7. A downhole logging instrument according to claim 1, wherein the second tension end (30) is internally provided with:
a relief valve (31) disposed inside the second tension end (30);
the inner part of the second tension end (30) is arranged in an air hole, and the air hole is communicated with the outside and the sealed cavity;
a vent sealing nail (32) in threaded connection with the second tension end (30) and in sealing connection with the vent;
a second threaded sleeve (33) sleeved outside the second tension end (30), through which the test end (50) is fixedly connected with the second tension end (30);
a second sealing plug (34) disposed inside the second tension end (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220198614.5U CN217055129U (en) | 2022-01-25 | 2022-01-25 | Downhole logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220198614.5U CN217055129U (en) | 2022-01-25 | 2022-01-25 | Downhole logging instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217055129U true CN217055129U (en) | 2022-07-26 |
Family
ID=82485510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220198614.5U Active CN217055129U (en) | 2022-01-25 | 2022-01-25 | Downhole logging instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217055129U (en) |
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2022
- 2022-01-25 CN CN202220198614.5U patent/CN217055129U/en active Active
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