CN111577247B - Circumferential positioning connection structure of acoustic logging instrument - Google Patents
Circumferential positioning connection structure of acoustic logging instrument Download PDFInfo
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- CN111577247B CN111577247B CN202010345688.2A CN202010345688A CN111577247B CN 111577247 B CN111577247 B CN 111577247B CN 202010345688 A CN202010345688 A CN 202010345688A CN 111577247 B CN111577247 B CN 111577247B
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- 238000000034 method Methods 0.000 claims description 12
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- 238000003801 milling Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 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
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- 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
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
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- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geophysics (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Acoustics & Sound (AREA)
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Abstract
The application provides a circumferential positioning connection structure of a sound wave logging instrument, which comprises a receiving circuit shell, an upper connector and an upper adjusting head which are sequentially connected, wherein a first shaft groove is formed in the upper connecting head, a first quick-rotating nut is installed in the first shaft groove, and the first quick-rotating nut is connected with the receiving circuit shell and the upper connector; a first positioning key is further arranged between the receiving circuit shell and the upper connector and used for circumferentially positioning the receiving circuit shell and the upper connector, a second shaft groove is formed in the upper adjusting head, a second quick-screwing nut is mounted in the second shaft groove and connected with the upper connector and the upper adjusting head; and a second positioning key is further arranged between the upper connector and the upper adjusting head and used for circumferentially positioning the upper connector and the upper adjusting head.
Description
Technical Field
The application relates to but is not limited to the acoustic logging instrument field, especially a circumferential positioning connection structure of acoustic logging instrument.
Background
As shown in fig. 1, it is a connection structure of a receiving acoustic system and a receiving circuit in a cross dipole receiving short section at 175 ℃ in the prior art, and a part 91 is a receiving circuit housing; part 92 is the upper connector; part 93 is to receive the upper adjustment head.
The male thread button at the left end of the upper connector is connected with the female thread button at the right end of the receiving circuit shell, and the female thread button at the right end of the upper connector is connected with the male thread button at the left end of the receiving upper adjusting head. Since the circumferential directivities of the receiving circuit and the receiving acoustic system cannot be ensured by the simple thread-fastening connection, the receiving pup joint connected by the connection structure shown in fig. 1 needs to be scaled in the circumferential direction when connected to other instruments.
Disclosure of Invention
In order to solve the problems, the application provides a circumferential positioning connection structure of an acoustic logging instrument, which can realize circumferential positioning when the instruments are connected and is convenient and reliable to position.
The application provides a circumferential positioning connection structure of a sound wave logging instrument, which comprises a receiving circuit shell, an upper connector and an upper adjusting head which are sequentially connected, wherein a first shaft groove is formed in the upper connecting head, a first quick-rotating nut is installed in the first shaft groove, and the first quick-rotating nut is connected with the receiving circuit shell and the upper connector; a first positioning key is arranged between the receiving circuit shell and the upper connector and used for circumferentially positioning the receiving circuit shell and the upper connector,
a second shaft groove is formed in the upper adjusting head, a second quick-screwing nut is mounted in the second shaft groove, and the second quick-screwing nut is connected with the upper connector and the upper adjusting head; and a second positioning key is further arranged between the upper connector and the upper adjusting head and used for circumferentially positioning the upper connector and the upper adjusting head.
Compared with the prior art, the method has the following beneficial effects:
the application provides a circumferential location connection structure of sound wave logging instrument, through the mode that sets up keyway structure + fast nut of screwing, make receiving circuit shell and last connector, go up the connector and adjust between the head closely to can realize circumferential location, saved the instrument and carried out this step of position scale before the operation of going into the well, simplified the operation flow before the instrument goes into the well greatly, simultaneously, also effectively improved the positioning accuracy of instrument assembly. In addition, the circumference location connection structure that this application provided is simple relatively, and the operational reliability is high, and long service life has improved this circumference location connection structure's practicality greatly.
Other features and advantages of the present application will be set forth in the description that follows.
Drawings
The accompanying drawings are included to provide a further understanding of the claimed subject matter and are incorporated in and constitute a part of this specification, illustrate embodiments of the subject matter and together with the description serve to explain the principles of the subject matter and not to limit the subject matter.
FIG. 1 is a schematic diagram of a prior art circumferentially oriented coupling arrangement for a logging tool;
FIG. 2 is a schematic diagram of a circumferentially oriented coupling structure of an acoustic logging tool according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a receiving circuit casing according to an embodiment of the present application;
fig. 4 is a first schematic structural diagram of an upper connector according to an embodiment of the present application;
fig. 5 is a second schematic structural diagram of an upper connector according to an embodiment of the present application;
FIG. 6 is a schematic structural diagram of an upper conditioning head according to an embodiment of the present application;
FIG. 7 is a schematic view (perspective view) of a portion of a first restraint slot according to an embodiment of the present application;
FIG. 8 is a schematic partial structural view (front view) of a first retaining groove according to an embodiment of the present disclosure;
fig. 9 is a schematic structural diagram of a first positioning key according to an embodiment of the present application.
Illustration of the drawings:
11-receiving circuit housing, 111-first transverse groove, 12-upper connector, 121-second transverse groove, 13-upper adjusting head, 21-first axial groove, 22-second axial groove, 31-first quick-turn nut, 32-second quick-turn nut, 41-first positioning key, 42-second positioning key, 51-radial limiting part, 52-circumferential limiting part, 61-first limiting groove, 62-second limiting groove, 71-radial limiting groove, 72-circumferential limiting groove, 8-process groove, 91-receiving circuit housing (prior art), 92-upper connector (prior art), 93-upper adjusting head (prior art).
Detailed Description
To make the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application 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.
The embodiment of the application provides a circumferential positioning connection structure of a sonic logging instrument, as shown in fig. 2 to 6, the circumferential positioning connection structure comprises a receiving circuit shell 11, an upper connector 12 and an upper adjusting head 13 which are sequentially connected, a first shaft groove 21 is formed in the upper connector 12, a first quick-turn nut 31 is installed in the first shaft groove 21, and the first quick-turn nut 31 is connected with the receiving circuit shell 11 and the upper connector 12; a first positioning key 41 is further arranged between the receiving circuit shell 11 and the upper connector 12, the first positioning key 41 circumferentially positions the receiving circuit shell 11 and the upper connector 12, a second shaft groove 22 is arranged on the upper adjusting head 13, a second quick-turning nut 32 is installed in the second shaft groove 22, and the second quick-turning nut 32 is connected with the upper connector 12 and the upper adjusting head 13; a second positioning key 42 is further arranged between the upper connector 12 and the upper adjusting head 13, and the second positioning key 42 circumferentially positions the upper connector 12 and the upper adjusting head 13.
Ordinary threaded connection can not carry out circumference location, and in this application embodiment, through setting up fast turn nut and keyway structure complex mode, makes receiving circuit shell 11 and last connector 12, goes up and has realized circumference location when still through threaded connection between connector 12 and the last adjusting head 13. Specifically, the first quick-turn nut 31 is assembled in the axial groove of the upper connector 12, so that the first quick-turn nut 31 and the upper connector 12 are axially fixed, and an external thread is provided on the outer surface of the first quick-turn nut 31 and is matched with the internal thread of the receiving circuit shell 11. The structure of the second quick-turn nut 32 is the same as that described above, and will not be described again.
The first axial slot 21 can communicate with the first end of the first limiting slot 61, so that one end (the left end in fig. 2) of the first quick-turn nut 31 abuts against the first positioning key 41, and the first quick-turn nut 31 axially limits the first positioning key.
In an exemplary embodiment, the first nut 31 includes two semicircular nut shells and fasteners that combine the two semicircular nut shells into the first nut 31 and mount to the upper connector 12, and the second nut 32 includes two semicircular nut shells and fasteners that combine the two semicircular nut shells into the second nut 32 and mount to the upper adjustment head 13.
The two semicircular fast nut shells of the first fast nut 31 are fastened on the first axial groove 21 and connected by a fastening member (e.g. a screw) to form a complete first fast nut 31. The second quick-turn nut 32 works the same.
In an exemplary embodiment, as shown in fig. 4 and 6, a first limiting groove 61 is disposed on a contact surface of the upper connector 12 and the receiving circuit housing 11, the first limiting groove 61 is used for mounting the first positioning key 41, a second limiting groove 62 is disposed on a contact surface of the upper adjusting head 13 and the upper connector 12, and the second limiting groove 62 is used for mounting the second positioning key 42.
After the first positioning key 41 is installed in the first limiting groove 61, the first limiting groove 61 is disposed on the outer side wall surface of the upper connector 12 for circumferentially positioning the space between the receiving circuit housing 11 and the upper connector 12. The second limiting groove 62 works similarly.
In an exemplary embodiment, as shown in fig. 7 and 8, the first end of the first retaining groove 61 communicates with the first axial groove 21, such that the first detent key 41 is axially slidably mounted into the first retaining groove 61 from the first end of the first retaining groove 61, and the first end of the second retaining groove 62 communicates with the second axial groove 22, such that the second detent key 42 is axially slidably mounted into the second retaining groove 62 from the first end of the second retaining groove 62.
The first positioning key 41 is not directly placed into the first limiting groove 61 from top to bottom, but is axially slidably installed into the first limiting groove 61 through the first end of the first limiting groove 61, and after installation is completed, the first positioning key 41 is radially limited by the first limiting groove 61. The second positioning key 42 works similarly.
Specifically, as shown in fig. 7 and 8, each of the first and second stopper grooves 61 and 62 includes a radial stopper groove 71 and a circumferential stopper groove 72, and the width of the radial stopper groove 71 is larger than the width of the circumferential stopper groove 72.
In an exemplary embodiment, as shown in fig. 9, each of the first positioning key 41 and the second positioning key 42 includes a radial stopper portion 51 and a circumferential stopper portion 52, and the width of the radial stopper portion 51 is greater than the width of the circumferential stopper portion 52. The height of the radial stopper portion 51 is smaller than the height of the circumferential stopper portion 52.
The first positioning key 41 comprises a radial limiting part 51 and a circumferential limiting part 52 which respectively correspond to the radial limiting groove 71 and the circumferential limiting groove 72 of the first limiting groove 61; the width of the radial limiting part 51 is greater than that of the circumferential limiting part 52, that is, the radial limiting part 51 of the first positioning key 41 is clamped into the radial limiting groove 71, the circumferential limiting part 52 is clamped into the circumferential limiting groove 72, and the first limiting groove 61 circumferentially limits the first positioning key 41 (and thus circumferentially limits the receiving circuit housing 11), and radially limits the first positioning key. Regarding the radial limit of the first limit groove 61 to the first positioning key 41, it should be noted that: in the actual assembling process, for the convenience of assembly, the outer diameter of the upper connector 12 on which the first positioning key 41 is installed is still smaller than the inner diameter of the receiving circuit casing 11 (if the two are equal, the assembling is difficult), and at this time, the upper end of the first positioning key 41 after the assembling is completed does not abut against the inner side wall surface of the receiving circuit casing 11, so that the first positioning key 41 needs to be radially limited by the first limiting groove 61, and the first positioning key 41 cannot radially move at the installation position after the assembling is completed. Of course, it is easily understood that the first positioning key 41 does not rotate in the circumferential direction in the first stopper groove 61 (the reason for this is not described again). In addition, because the first positioning key 41 is supported by the first nut 31 after the installation is completed, the first positioning key 41 does not move in the axial direction after the installation is completed, that is, the first positioning key 41 is completely fixed when the circumferential limiting of the upper connector 12 and the receiving circuit housing 11 is performed. The second positioning key 42 has the same function.
The first axial groove 21 can communicate with the first end of the first limiting groove 61, so that one end (the left end in fig. 2) of the first quick-screwing nut 31 abuts against the first positioning key 41, and the first quick-screwing nut 31 axially limits the first positioning key 41.
In an exemplary embodiment, as shown in fig. 4, 6 and 7, the second ends of the first and second restraint grooves 61 and 62 are provided with the process groove 8.
That is, the first limiting groove 61 is away from one end of the first quick-screwing nut 31, the second limiting groove 62 is away from one end of the second quick-screwing nut 32, the process groove 8 is formed, and the process groove 8 is formed to facilitate manufacturing and processing of the first limiting groove 61 and the second limiting groove 62.
In an exemplary embodiment, as shown in fig. 3 and 5, a first transverse groove 111 is provided on a contact surface of the receiving circuit housing 11 with the upper connector 12, a circumferential limiting portion of the first positioning key 41 runs in the first transverse groove 111 and stays in the first transverse groove 111, a second transverse groove 121 is provided on a contact surface of the upper connector 12 with the upper adjustment head 13, and a circumferential limiting portion of the second positioning key 42 runs in the second transverse groove 121 and stays in the second transverse groove 121.
The circumferential stopper portion 52 of the first positioning key 41 runs in the first lateral groove 111 and remains in the first lateral groove 111, namely: the first transverse groove 111 is used for the circumferential direction limiting portion 52 of the first positioning key 41 to pass through and accommodate, and the radial direction limiting portion 51 is matched with the radial direction limiting groove 71 in the first limiting groove 61, so that interference with the first transverse groove 111 (the surrounding wall surface) is avoided.
Specifically, one end of the first transverse slot 111 may extend to the end of the receiving circuit housing 11, and the other end extends to be flush with the distal end of the process slot 8 on the upper connecting head 12, a second transverse slot 121 is disposed on the contact surface of the upper connecting head 12 and the upper adjusting head 13, one end of the second transverse slot 121 may extend to the end of the upper connecting head 12, and the other end extends to be flush with the distal end of the process slot 8 on the upper adjusting head 13. The distal end of the process groove 8 on the upper connector 12 is referred to as the leftmost side of the process groove 8 in fig. 4, but the other end of the first transverse groove 111 may extend to be flush with the distal end of the first limiting groove 61 (i.e., the rightmost side of the process groove 8 in fig. 4, or the leftmost side of the first limiting groove 61). The second transverse slot 121 is similar.
In an exemplary embodiment, the first and second transverse grooves 111 and 121 are formed by a milling process.
The first and second transverse grooves 111 and 121 are formed by milling, which can improve the surface smoothness of the first and second transverse grooves 111 and 121 and facilitate assembly work.
In an exemplary embodiment, the first positioning key 41 and the second positioning key 42 are made of titanium alloy.
The titanium alloy can effectively provide the strength of the first positioning key 41 and the second positioning key 42, and the working reliability of the circumferential positioning connecting structure is ensured.
The circumferential positioning connection structure of the acoustic logging instrument provided by the embodiment of the application, when assembling, pack first positioning key 41 into first spacing groove 61 earlier, install first fast-screwing nut 31 on first shaft groove 21, in will going up connector 12 and tentatively inserting receiving circuit shell 11 again, twist first fast-screwing nut 31 soon, make connector 12 and receiving circuit shell 11 be connected closely, realize connecting and location between the two promptly. The assembly of the upper connecting head 12 and the upper adjusting head 13 is the same.
The embodiment of the application provides a circumferential location connection structure of sound wave logging instrument, can be used as the mechanical structure who connects high temperature cross dipole receiving circuit and receive the acoustic system and guarantee the circumference direction uniformity, it sets up the connection location mode of "keyway structure + fast nut" simultaneously in the upper connector left and right sides, need not additionally to increase under the prerequisite of special connection structure, the connection location of logging instrument has been realized, and is easy operation, and convenient assembling has improved the practicality of the circumferential location connection structure of sound wave logging instrument greatly.
In the description of the present application, it should be noted that the term "plurality" refers to two or more, and the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", and the like are based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present application and simplifying the description, but do not indicate or imply that the structures referred to have a specific direction, are configured and operated in a specific direction, and thus, cannot be construed as limiting the present application.
In the description of the embodiments of the present application, unless expressly stated or limited otherwise, the terms "connected," "mounted," and "installed" are to be construed broadly, e.g., the term "connected" may be a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The embodiments described herein are exemplary rather than limiting and it will be apparent to those of ordinary skill in the art that many more embodiments and implementations are possible that are within the scope of the embodiments described herein. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Any feature or element of any embodiment may be used in combination with or instead of any other feature or element in any other embodiment, unless expressly limited otherwise.
The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements that have been disclosed in this application may also be combined with any conventional features or elements to form unique aspects as defined by the claims. Any feature or element of any embodiment may also be combined with features or elements from other aspects to form another unique aspect as defined by the claims. Thus, it should be understood that any of the features shown and/or discussed in this application may be implemented alone or in any suitable combination. Accordingly, the embodiments are not limited except as by the appended claims and their equivalents. Furthermore, various modifications and changes may be made within the scope of the appended claims.
Claims (8)
1. A circumferential positioning connection structure of a sound wave logging instrument comprises a receiving circuit shell, an upper connector and an upper adjusting head which are sequentially connected, and is characterized in that a first shaft groove is formed in the upper connector, a first quick-screwing nut is installed in the first shaft groove, and the first quick-screwing nut is connected with the receiving circuit shell and the upper connector; a first positioning key is further arranged between the receiving circuit shell and the upper connector, and the first positioning key is used for circumferentially positioning the receiving circuit shell and the upper connector; one end of the first quick-screwing nut props against the first positioning key to axially limit the first positioning key;
a second shaft groove is formed in the upper adjusting head, a second quick-screwing nut is mounted in the second shaft groove, and the second quick-screwing nut is connected with the upper connector and the upper adjusting head; a second positioning key is further arranged between the upper connector and the upper adjusting head, and the second positioning key is used for circumferentially positioning the upper connector and the upper adjusting head; one end of the second quick-screwing nut props against the second positioning key to axially limit the second positioning key;
a first limiting groove is formed in a contact surface of the upper connector and the receiving circuit shell, the first limiting groove is used for mounting the first limiting key, and a first end of the first limiting groove is communicated with the first shaft groove, so that the first limiting key is axially installed in the first limiting groove in a sliding mode from the first end of the first limiting groove; the first limiting groove is used for radially limiting and circumferentially limiting the first positioning key;
a second limiting groove is formed in a contact surface of the upper adjusting head and the upper connecting head, the second limiting groove is used for mounting the second positioning key, and a first end of the second limiting groove is communicated with the second shaft groove, so that the second positioning key is axially installed in the second limiting groove in a sliding manner from the first end of the second limiting groove; the second limiting groove is used for radially limiting and circumferentially limiting the second positioning key.
2. A circumferentially positionable attachment structure for a sonic logging instrument according to claim 1, wherein the first nut comprises two semi-circular nut shells and a fastener that combines the two semi-circular nut shells into the first nut and mounts on the upper connector,
the second quick-screwing nut comprises two semicircular quick-screwing nut shells and a fastening piece, and the fastening piece is used for forming the second quick-screwing nut by the two semicircular quick-screwing nut shells and is arranged on the upper adjusting head.
3. A circumferential locating connection structure for an acoustic logging instrument as claimed in claim 1, wherein the first and second retaining grooves each comprise a radial retaining groove and a circumferential retaining groove, the radial retaining groove having a width greater than the circumferential retaining groove.
4. A circumferential locating connection according to claim 3, wherein the first and second locating keys each comprise a radial stop portion and a circumferential stop portion, the radial stop portion having a width greater than the circumferential stop portion.
5. The circumferential positioning and connecting structure of an acoustic logging instrument of claim 1, wherein the second end of the first retaining groove and the second end of the second retaining groove are provided with process grooves.
6. A circumferential positioning connection structure of an acoustic logging instrument according to claim 5, wherein a first transverse groove is provided on a contact surface of the receiving circuit housing with the upper connector, a circumferential limiting portion of the first positioning key travels in the first transverse groove and remains in the first transverse groove,
and a second transverse groove is formed in the contact surface of the upper connector and the upper adjusting head, and a circumferential limiting part of the second positioning key advances in the second transverse groove and is left in the second transverse groove.
7. A circumferentially positionable attachment structure for a sonic logging instrument as defined in claim 6, wherein the first transverse groove and the second transverse groove are formed by milling.
8. A circumferential positioning and connecting structure of an acoustic logging instrument according to any one of claims 1 to 7, wherein the first positioning key and the second positioning key are made of titanium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010345688.2A CN111577247B (en) | 2020-04-27 | 2020-04-27 | Circumferential positioning connection structure of acoustic logging instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010345688.2A CN111577247B (en) | 2020-04-27 | 2020-04-27 | Circumferential positioning connection structure of acoustic logging instrument |
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| CN111577247A CN111577247A (en) | 2020-08-25 |
| CN111577247B true CN111577247B (en) | 2022-10-18 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2632687Y (en) * | 2003-05-30 | 2004-08-11 | 徐凌堂 | Multifrequency array sonic logging instrument |
| CN203035195U (en) * | 2013-01-28 | 2013-07-03 | 中国石油集团渤海钻探工程有限公司 | Source-spacing-adjustable acoustic logging sonic system |
| CN208380515U (en) * | 2018-05-14 | 2019-01-15 | 中国石油集团西部钻探工程有限公司 | Sealing adjustment connector |
| CN109236270A (en) * | 2018-08-24 | 2019-01-18 | 中国海洋石油集团有限公司 | A kind of logging instrument |
| CN109281650A (en) * | 2017-07-19 | 2019-01-29 | 中国科学院声学研究所 | A kind of borehole wall real time imagery method based on cylinder ultrasonic phase array |
| CN209818054U (en) * | 2019-04-22 | 2019-12-20 | 吉艾（天津）石油工程有限公司 | Cross dipole acoustic logging instrument |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640055B (en) * | 2016-11-21 | 2017-11-17 | 中国科学院地质与地球物理研究所 | It is a kind of to be applied to the reception device for boring orientation acoustic logging |
-
2020
- 2020-04-27 CN CN202010345688.2A patent/CN111577247B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2632687Y (en) * | 2003-05-30 | 2004-08-11 | 徐凌堂 | Multifrequency array sonic logging instrument |
| CN203035195U (en) * | 2013-01-28 | 2013-07-03 | 中国石油集团渤海钻探工程有限公司 | Source-spacing-adjustable acoustic logging sonic system |
| CN109281650A (en) * | 2017-07-19 | 2019-01-29 | 中国科学院声学研究所 | A kind of borehole wall real time imagery method based on cylinder ultrasonic phase array |
| CN208380515U (en) * | 2018-05-14 | 2019-01-15 | 中国石油集团西部钻探工程有限公司 | Sealing adjustment connector |
| CN109236270A (en) * | 2018-08-24 | 2019-01-18 | 中国海洋石油集团有限公司 | A kind of logging instrument |
| CN209818054U (en) * | 2019-04-22 | 2019-12-20 | 吉艾（天津）石油工程有限公司 | Cross dipole acoustic logging instrument |
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