CN110939429A - Logging instrument - Google Patents
Logging instrument Download PDFInfo
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- CN110939429A CN110939429A CN201811110687.9A CN201811110687A CN110939429A CN 110939429 A CN110939429 A CN 110939429A CN 201811110687 A CN201811110687 A CN 201811110687A CN 110939429 A CN110939429 A CN 110939429A
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- measuring line
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- 238000004519 manufacturing process Methods 0.000 claims abstract description 38
- 238000012544 monitoring process Methods 0.000 claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 210000002445 nipple Anatomy 0.000 claims description 16
- 238000012806 monitoring device Methods 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 12
- 239000000523 sample Substances 0.000 claims description 11
- 238000005259 measurement Methods 0.000 abstract description 38
- 238000013461 design Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000010978 in-process monitoring Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
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Abstract
The invention discloses a logging instrument, and belongs to the field of oil and gas field equipment. The logging tool comprises: center rod, support arm, motor, drive mechanism and monitoring facilities. The outer wall of the central rod is axially provided with a sliding groove, and the support arm is arranged in the sliding groove and can slide in the sliding groove along the axial direction of the sliding groove. The motor is fixed on the central rod, is connected with the support arm through a transmission mechanism and is used for driving the support arm to slide in the sliding groove along the axial direction of the sliding groove. The monitoring equipment is arranged on the support arm and used for measuring the production data of the gas well. According to the invention, the monitoring equipment is arranged on the support arm, and the monitoring equipment is moved to the positions corresponding to different production layers through the operation of the motor, so that the production data of each production layer are respectively obtained, the measurement efficiency is improved, and the labor intensity is reduced. And continuous measurement can be carried out along with the continuous movement of the support arm through the monitoring equipment, the measurement result covers the production data of different depths, the device can be suitable for the complex working condition that the produced gas continuously flows, and the measurement reliability is higher.
Description
Technical Field
The invention relates to the field of gas field equipment, in particular to a logging instrument.
Background
The coal field gas well comprises a plurality of production layers with different depths, and in the coal bed gas exploitation process, the coal bed gas in the plurality of production layers is mixed and exploited to a well head through an oil pipe. In order to facilitate the mastering of the productivity of each downhole production zone, it is necessary to measure the production data of each production zone.
In the prior art, when production data of each production layer is measured, a worker holds a rope at a wellhead to put a measuring instrument into a gas well at a position corresponding to one production layer, production data corresponding to the production layer is obtained, then the measuring instrument is moved to the position corresponding to the next production layer through the rope to obtain production data corresponding to the next production layer, and the operation is repeated for many times, so that production data corresponding to a plurality of production layers can be obtained.
The inventor finds that the prior art has at least the following problems:
staff need remove the measuring instrument to the different degree of depth many times, and it is great to consume the labour.
Disclosure of Invention
The embodiment of the invention provides a logging instrument, which can solve the technical problem. The specific technical scheme is as follows:
there is provided a logging tool, the logging tool comprising: the device comprises a central rod, a support arm, a motor, a transmission mechanism and monitoring equipment;
the outer wall of the central rod is axially provided with a sliding groove, and the support arm is arranged in the sliding groove and can slide in the sliding groove along the axial direction of the sliding groove;
the motor is fixed on the central rod, is connected with the support arm through the transmission mechanism and is used for driving the support arm to slide in the sliding groove along the axial direction of the sliding groove;
the monitoring equipment is arranged on the support arm and used for measuring the production data of the gas well.
In a possible design, the support arm is including connecting portion and installation department together, connecting portion are located in the spout, the installation department with well core rod interval is relative, monitoring facilities sets up on the installation department.
In one possible design, the transmission mechanism includes: the gear is meshed with the straight rack;
the gear sleeve is arranged on the output shaft of the motor, and the spur rack is positioned in the chute and connected with the connecting part.
In one possible design, the transmission mechanism includes: the lead screw is connected with an output shaft of the motor, and the connecting part is in threaded connection with the lead screw.
In one possible design, the monitoring device includes: a thermal gas flow sensor and/or a probe sensor;
the thermal gas flow sensor is fixed on the support arm and used for measuring the gas flow in the gas well;
the probe sensor is fixed on the support arm and used for measuring the combustible content of the gas produced in the gas well.
In one possible design, the tool further comprises one or more subs coupled to the waveguide.
In one possible design, the tool includes: the bottom of first nipple joint with well core rod's top is connected, the top of second nipple joint with well core rod's bottom is connected.
In one possible design, a magnetic positioning sensor, a temperature sensor and/or a pressure sensor is arranged on the first short section.
In one possible design, a high-frequency radio frequency sensor and/or a contact type liquid flow sensor is/are arranged on the second short section.
In one possible design, a first measuring line is arranged in the first short section, and the first measuring line is electrically connected with the magnetic positioning sensor, the temperature sensor and/or the pressure sensor respectively;
a second measuring line is arranged in the second short section and is electrically connected with the high-frequency radio frequency sensor and/or the contact type liquid flow sensor respectively;
a third measuring circuit is arranged in the center rod and is electrically connected with the thermal gas flow sensor and/or the probe sensor respectively;
the first measurement line, the second measurement line, and the third measurement line are electrically connected.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
according to the logging instrument provided by the embodiment of the invention, the monitoring equipment is arranged on the support arm, the support arm is driven to slide up and down through the operation of the motor, and the monitoring equipment can be moved to the positions corresponding to different production layers through the operation of the motor only by lowering the logging instrument to the underground preset position, so that the production data of each production layer can be respectively obtained, the measurement efficiency is improved, and the labor intensity is reduced. And continuous measurement can be carried out along with the continuous movement of the support arm through the monitoring equipment, the measurement result covers the production data of different depths, the device can be suitable for the complex working condition that the produced gas continuously flows, and the measurement reliability is higher.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a portion of a tool provided in accordance with an embodiment of the present invention;
FIG. 2 is a schematic diagram of a structure of a logging tool according to an embodiment of the present invention, in which a support arm is located in a slide groove;
FIG. 3 is a schematic structural diagram of a first sub in the logging tool provided by the embodiment of the invention;
FIG. 4 is a schematic structural diagram of a second sub in the logging tool provided by the embodiment of the invention;
FIG. 5 is a schematic diagram of an overall configuration of a logging tool provided by an embodiment of the invention.
The reference numerals denote:
1-a central rod, wherein the central rod is provided with a plurality of holes,
101-a slide groove, wherein the slide groove is provided with a sliding groove,
2-a support arm, wherein the support arm is provided with a support arm,
21-a connecting part, wherein the connecting part is provided with a plurality of connecting holes,
22-the mounting portion,
3-the motor is arranged on the base plate,
4-a transmission mechanism is arranged on the frame,
41-a lead screw, wherein the lead screw is provided with a screw rod,
42-a nut, the nut being,
5-monitoring the equipment, namely monitoring the equipment,
51-a thermal-type gas flow sensor,
52-the probe-sensor is used to measure,
6-the first short section is provided with a short pipe,
61-a magnetic positioning sensor-the magnetic position of the sensor,
62-a temperature sensor, the temperature of which is measured,
63-a pressure sensor-the pressure of the fluid,
7-a second short section,
71-a high-frequency radio-frequency sensor,
72-a contact liquid flow sensor, which is,
8-the first measuring line is connected to the first measuring line,
9-a second measuring line for the measurement of,
10-a third measuring line, which is,
11-a guide.
Detailed Description
Unless defined otherwise, all technical terms used in the examples of the present invention have the same meaning as commonly understood by one of ordinary skill in the art. In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
An embodiment of the present invention provides a logging tool, as shown in fig. 1 and 2, including: the device comprises a central rod 1, a support arm 2, a motor 3, a transmission mechanism 4 and monitoring equipment 5. The outer wall of the central rod 1 is provided with a sliding groove 101 along the axial direction, and the support arm 2 is arranged in the sliding groove 101 and can slide in the sliding groove 101 along the axial direction of the sliding groove 101. The motor 3 is fixed in the central rod 1, connected with the support arm 2 through the transmission mechanism 4, and used for driving the support arm 2 to slide in the sliding groove 101 along the axial direction of the sliding groove 101. The monitoring device 5 is arranged on the support arm 2 and used for measuring production data of the gas well.
The working principle of the logging instrument provided by the embodiment of the invention is explained as follows:
during the application, with this logging instrument through cable etc. go into the gas well down, well core rod 1 corresponds the position on production zone, and the different production zones of different depth on the core rod 1. When the motor 3 runs, the transmission mechanism 4 drives the support arm 2 to slide up and down in the chute 101. Monitoring facilities 5 sets up on support arm 2, reciprocates along with support arm 2, and when support arm 2 removed different positions, monitoring facilities 5's position corresponded different production layers, can obtain the production data of each production layer respectively.
Therefore, according to the logging instrument provided by the embodiment of the invention, the monitoring device 5 is arranged on the support arm 2, the support arm 2 is driven to slide up and down through the operation of the motor 3, and the monitoring device 5 can be moved to the positions corresponding to different production layers through the operation of the motor 3 only by lowering the logging instrument to the underground preset position, so that the production data of each production layer can be respectively obtained, the measurement efficiency is improved, and the labor intensity is reduced. And continuous measurement can be carried out along with the continuous movement of the support arm 2 through the monitoring equipment 5, the measurement result covers the production data of different depths, the device can be suitable for the complex working condition that the produced gas continuously flows, and the measurement reliability is high.
The following describes the components and their functions of the logging tool provided by the embodiments of the present invention, respectively:
well core rod 1 is the main part of logging instrument, through putting well core rod 1 down and can go into this logging instrument to predetermine the degree of depth in the pit. Well core rod 1 can be for post tubular structure, and motor 3 can be fixed in well core rod 1's inner space through support etc. well core rod 1 plays the guard action to motor 3, avoids gaseous and/or liquid etc. to produce the corrosion damage to motor 3 in the pit.
The outer wall of the central rod 1 is provided with a sliding groove 101 along the axial direction, namely, the sliding groove 101 is long from top to bottom, and the support arm 2 can move up and down in the sliding groove 101. As to how the arm 2 is disposed in the chute 101, the following is exemplified:
alternatively, as shown in fig. 2, the arm 2 includes a connecting portion 21 and a mounting portion 22 connected together, the connecting portion 21 is located in the sliding groove 101 and connected to the transmission mechanism 4, the mounting portion 22 is spaced apart from and opposite to the central rod 1, and the monitoring device 5 is disposed on the mounting portion 22.
So set up, connecting portion 21 can slide from top to bottom in spout 101, drives installation department 22 and reciprocates, and monitoring facilities 5 sets up on installation department 22, is driven by installation department 22 and reciprocates. And installation department 22 is relative with well core rod 1 interval, can not contact with monitoring facilities 5 when the adhesion liquid on well core rod 1 glides along well core rod 1, can avoid causing the damage to monitoring facilities 5 on the one hand, and on the other hand avoids producing the influence to the monitoring data.
Further, the monitoring device 5 may be provided on a side wall of the mounting portion 22 opposite to the center rod 1, that is, the monitoring device 5 is provided inside the mounting portion 22. So, installation department 22 can play the guard action to monitoring facilities 5, avoids logging instrument to go into in-process monitoring facilities 5 and take place to collide with the wall of a well and cause the damage to monitoring facilities 5.
As for the structure of the arm 2, the following is exemplified:
in an example, as shown in fig. 2, the mounting portion 22 of the arm 2 may be an arc-shaped rod or an arc-shaped plate, and the connecting portion 21 of the arm 2 may be two sliding blocks respectively disposed at two ends of the mounting portion 22, and the two sliding blocks may slide in the sliding groove 101.
In another example, the arm 2 may further include a connecting rod having one end connected to the connecting portion 21 located in the sliding groove 101 and the other end connected to the mounting portion 22 such that the mounting portion 22 is spaced apart from and opposite to the central rod 1. The connecting portion 21 may be a slider or a first rod located in the sliding groove 101, the mounting portion 22 may be a second rod spaced opposite to the center rod 1, and the connecting rods may be perpendicular to the center rod 1 and the second rod, respectively.
In this example, the second bar may be a straight bar or an arc bar or the like.
In both of the above examples, the number of arms 2 may be one or more. When the number of the support arms 2 is plural, the number of the sliding grooves 101 on the central rod 1 may be one, and the plurality of support arms 2 are distributed in the sliding grooves 101 from top to bottom. And a plurality of support arms 2 can be connected to the same motor 3 through the transmission mechanism 4, when the motor 3 drives each support arm 2 to synchronously slide up and down for the same stroke, the stroke of the measurement range of the monitoring equipment 5 is multiplied by the number of the support arms 2, and the monitoring range is wider. Or, the quantity of spout 101 can be a plurality of, and a plurality of spouts 101 distribute along well core rod 1's circumference, can be provided with a plurality of top-down's support arm 2 in every spout 101, so, make monitoring facilities 5 can measure the stratum from top to bottom data of different angles. For example, the number of the support arms 2 is 9, the support arms are respectively distributed in 3 sliding grooves 101, the included angle between the adjacent sliding grooves 101 is 120 degrees, 3 support arms 2 are arranged in each sliding groove 101, the 9 support arms 2 are connected to the same motor 4 through a transmission mechanism 4, when the motor 4 drives each support arm 2 to slide for 10m, the measurement range of the monitoring device 5 is 30m, and the measurement data of each depth includes measurement data of three different angles.
In the embodiment of the invention, the support arm 2 is connected with the motor 3 through the transmission mechanism 4, the support arm 2 is driven to slide by the operation of the motor 3, and for how the transmission mechanism 4 converts the rotation of the motor 3 into the up-and-down sliding of the support arm 2, several possible implementation modes are given as follows:
in a first implementation, the transmission mechanism 4 comprises: the gear is meshed with the spur rack. The gear is sleeved on an output shaft of the motor 3, and the spur rack is positioned in the chute 101 and connected with the connecting part 21.
Through setting up gear and spur rack of intermeshing, when motor 3 drove the gear and rotates, the spur rack translated under the effect of gear. Because the spur rack is connected with the connecting part 21, the whole support arm 2 slides up and down along with the spur rack. The straight rack is located the spout 101 and is connected with connecting portion 21, carries on spacingly through spout 101 straight rack, avoids rocking the skew etc. of straight rack.
Wherein, when motor 3 was located well core rod 1, spout 101 was the through groove with well core rod 1's inner space intercommunication, and the one end that spout 101 kept away from well core rod 1 axis is provided with the eaves. The spur rack is positioned in the sliding groove 101, one side face of the spur rack is abutted to the edge, the gear is positioned in the inner space of the central rod 1 and is meshed with the other side face opposite to the one side face, and the spur rack is clamped and fixed through the gear and the edge. Further, the chute 101 may include a first space close to the axis of the central rod 1 and a second space far from the axis of the central rod 1, the first space having a width smaller than that of the second space, with a step formed therebetween. The spur rack can include the body and set up in the tooth of body a side, and the body is located first space, and tooth is located the second space and with gear engagement, drives the spur rack and reciprocates when gear revolve. So set up, it is better to the spacing effect of alignment rack.
In a second implementation, as shown in fig. 1, the transmission mechanism 4 comprises: the lead screw 41, the lead screw 41 is connected with the output shaft of the motor 3, and the connecting part 21 is connected with the lead screw 41 in a threaded manner.
When the screw 41 rotates, the connecting portion 21 is disposed in the chute 101 and cannot rotate with the screw 41, and the two rotate relative to each other to cause relative displacement in the axial direction of the screw 41. The height of the screw 41 is constant during rotation, and the connecting portion 21 is displaced vertically.
It is understood that the axial direction of the lead screw 41 is the same direction as the axial direction of the chute 101, so that the relative displacement direction of the connecting portion 21 and the lead screw 41 is the up-down direction along the axial direction of the chute 101. The spindle 41 may be connected to the output shaft of the motor 3 by a coupling.
When the motor 3 is located in the central rod 1, the sliding groove 101 is a through groove communicated with the inner space of the central rod 1. The screw 41 may be sleeved with a nut 42, the nut 42 may be connected to the connecting portion 21 by a rod member or the like, one end of the rod member is connected to the nut 42 located in the inner space of the central rod 1, and the other end of the rod member is connected to the connecting portion 21, so that the connecting portion 21 and the nut 42 move synchronously. Because the connecting portion 21 is located in the sliding groove 101, the rotation of the nut 42 connected to the connecting portion 21 is limited, and when the motor 3 operates to drive the screw 41 to rotate, the nut 42 slides up and down, so that the support arm 2 slides up and down.
In the above two implementation manners, when the output shaft of the motor 3 rotates in the first direction, the connecting portion 21 is driven to move upwards, and when the output shaft of the motor 3 rotates in the second direction, the connecting portion 21 is driven to move downwards. The moving direction of the support arm 2 can be controlled by controlling the forward and reverse rotation of the motor 3. The distance of the movement of the support arm 2 can be controlled by controlling the number of turns of the motor 3.
Alternatively, the motor 3 may be a direct current motor, facilitating control of the rotation direction of the output shaft of the motor 3 by changing the direction of the current. By controlling the energization time, the number of turns of the output shaft of the motor 3 can be controlled.
In the embodiment of the present invention, the monitoring device 5 is used for measuring production data of a gas well, and for example, as shown in fig. 1, the monitoring device 5 includes: a thermal gas flow sensor 51 and/or a probe sensor 52. The thermal gas flow sensor 51 is fixed on the support arm 2 and used for measuring the gas flow in the gas well; a probe sensor 52 is fixed to the arm 2 for measuring the combustible content of the gas produced in the gas well.
By providing a gas flow sensor, the gas flow in the well can be obtained, and by providing the probe sensor 52, the combustible content of the produced gas can be obtained.
The logging instrument provided by the embodiment of the invention further comprises one or more short joints connected with the central rod 1. Through connect the nipple joint on well core rod 1, can adjust logging instrument to different length according to the user demand, can also set up partial monitoring facilities 5 on the nipple joint.
Optionally, as shown in fig. 5, the logging tool further comprises: the bottom end of the first short section 6 is connected with the top end of the central rod 1, and the top end of the second short section 7 is connected with the bottom end of the central rod 1.
As shown in fig. 3, the first short section 6 is provided with a magnetic positioning sensor 61, a temperature sensor 62 and/or a pressure sensor 63. First nipple joint 6 is connected through the top at well core rod 1, sets up magnetism positioning sensor 61 in first nipple joint 6 and can acquire the degree of depth of going into of logging instrument, and then controls the degree of depth of going into of logging instrument. Temperature sensor 62 is used to obtain downhole temperature and pressure sensor 63 is used to obtain downhole pressure for learning downhole conditions.
As shown in fig. 4, the second short section 7 is provided with a high-frequency rf sensor 71 and/or a contact liquid flow sensor 72. The high-frequency radio frequency sensor 71 is used for measuring the water content percentage in the produced gas, and the contact type liquid flow sensor 72 is used for measuring the liquid flow, so that the production data of the gas well can be further mastered.
In order to facilitate the transmission of the measurement data of each monitoring device 5 in the well to the well head, a first measurement line 8 is arranged in the first short section 6, and the first measurement line 8 is electrically connected with the magnetic positioning sensor 61, the temperature sensor 62 and/or the pressure sensor 63 respectively. A second measuring line 9 is arranged in the second short section 7, and the second measuring line 9 is electrically connected with the high-frequency radio frequency sensor 71 and/or the contact type liquid flow sensor 72 respectively. A third measuring line 10 is arranged in the center rod 1, and the third measuring line 10 is electrically connected with a thermal gas flow sensor 51 and/or a probe sensor 52 respectively. The first measuring line 8, the second measuring line 9 and the third measuring line 10 are electrically connected.
According to the arrangement, the measurement data of the magnetic positioning sensor 61, the measurement data of the temperature sensor 62 and/or the measurement data of the pressure sensor 63 are sent to the first measurement line 8, the measurement data of the high-frequency radio frequency sensor 71 and/or the contact type liquid flow sensor 72 are sent to the second measurement line 9, the measurement data of the thermal type gas flow sensor 51 and/or the measurement data of the probe sensor 52 are sent to the third measurement line 10, the first measurement line 8, the second measurement line 9 and the third measurement line 10 are electrically connected, and the measurement data of each monitoring device 5 can be obtained at the wellhead only by arranging a signal sending module connected with the first measurement line 8 in the first short section 6 or connecting the first measurement line 8 with wellhead equipment through a cable.
Wherein, threaded connection can be had between first nipple joint 6 and the central rod 1, and the bottom of first nipple joint 6 and the top of central rod 1 are provided with the multicore contact respectively, and first nipple joint 6 is fixed back with central rod 1, and the multicore contact is aimed at, makes first measuring line 8 and third measuring line 10 electricity connect. The second short section 7 and the central rod 1 can be in threaded connection, the top end of the second short section 7 and the bottom end of the central rod 1 are respectively provided with a multi-core contact, and after the second short section 7 and the central rod 1 are fixed, the multi-core contacts are aligned to enable the second measuring line 9 and the third measuring line 10 to be electrically connected, so that the first measuring line 8, the second measuring line 9 and the third measuring line 10 are electrically connected.
When first measuring line 8 passes through the cable and is connected with well head equipment, the top of first nipple joint 6 can also be provided with single core plug, and first measuring line 8 and single core plug are connected, can be connected the cable with 8 electricity of first measuring line with cable and single core plug connection.
Optionally, as shown in fig. 4, a guide 11 may be further connected to the bottom end of the second short section 7, and the guide 11 includes: the barrel is connected with the bottom end of the second short section 7, and the mallet body is connected with the top end of the barrel. The mallet body can be hemispherical structure, and the external diameter of barrel is the same with the external diameter of second nipple joint 7, and the bottom of barrel is provided with the reducing section that external diameter top-down reduces gradually, and when logging instrument transferred the process and met the resistance, the mallet body of guide 11 bottom at first contacted with the barrier, supported out the passageway, then enlarges the passageway when the barrel passed through the barrier. It can be seen that damage such as bumps on that can avoid second nipple joint 7 direct and barrier contact to cause through setting up guide 11.
The above description is only an illustrative embodiment of the present invention, and should not be taken as limiting the scope of the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A logging tool, comprising: the device comprises a central rod (1), a support arm (2), a motor (3), a transmission mechanism (4) and monitoring equipment (5);
a sliding groove (101) is axially formed in the outer wall of the central rod (1), and the support arm (2) is arranged in the sliding groove (101) and can slide in the sliding groove (101) along the axial direction of the sliding groove (101);
the motor (3) is fixed on the central rod (1), is connected with the support arm (2) through the transmission mechanism (4), and is used for driving the support arm (2) to slide in the sliding groove (101) along the axial direction of the sliding groove (101);
the monitoring equipment (5) is arranged on the support arm (2) and used for measuring production data of the gas well.
2. The logging instrument of claim 1, wherein the arm (2) comprises a connecting portion (21) and a mounting portion (22) connected together, the connecting portion (21) being located in the sliding groove (101), the mounting portion (22) being spaced apart from the central rod (1), the monitoring device (5) being disposed on the mounting portion (22).
3. A logging tool according to claim 2, wherein the transmission mechanism (4) comprises: the gear is meshed with the straight rack;
the gear sleeve is arranged on an output shaft of the motor (3), and the spur rack is positioned in the sliding groove (101) and connected with the connecting part (21).
4. A logging tool according to claim 2, wherein the transmission mechanism (4) comprises: the lead screw (41), lead screw (41) with the output shaft connection of motor (3), connecting portion (21) with lead screw (41) threaded connection.
5. A logging tool according to claim 1, wherein the monitoring device (5) comprises: a thermal gas flow sensor (51) and/or a probe sensor (52);
the thermal gas flow sensor (51) is fixed on the support arm (2) and is used for measuring the gas flow in the gas well;
the probe sensor (52) is fixed on the support arm (2) and is used for measuring the combustible content of gas produced in the gas well.
6. The logging tool according to claim 1, further comprising one or more subs connected to the central rod (1).
7. The logging tool of claim 6, wherein the logging tool comprises: first nipple joint (6) and second nipple joint (7), the bottom of first nipple joint (6) with the top of well core rod (1) is connected, the top of second nipple joint (7) with the bottom of well core rod (1) is connected.
8. A logging tool according to claim 6, wherein the first sub (6) is provided with a magnetic positioning sensor (61), a temperature sensor (62) and/or a pressure sensor (63).
9. A logging tool according to claim 7, wherein the second sub (7) is provided with a high frequency RF sensor (71) and/or a contact liquid flow sensor (72).
10. A logging instrument according to claim 8, wherein a first measuring line (8) is provided in the first sub (6), the first measuring line (8) being electrically connected to the magnetic positioning sensor (61), the temperature sensor (62) and/or the pressure sensor (63), respectively;
a second measuring line (9) is arranged in the second short section (7), and the second measuring line (9) is electrically connected with the high-frequency radio frequency sensor (71) and/or the contact type liquid flow sensor (72) respectively;
a third measuring line (10) is arranged in the center rod (1), and the third measuring line (10) is electrically connected with the thermal gas flow sensor (51) and/or the probe sensor (52) respectively;
the first measuring line (8), the second measuring line (9) and the third measuring line (10) are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811110687.9A CN110939429A (en) | 2018-09-21 | 2018-09-21 | Logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811110687.9A CN110939429A (en) | 2018-09-21 | 2018-09-21 | Logging instrument |
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|---|---|
| CN110939429A true CN110939429A (en) | 2020-03-31 |
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|---|---|---|---|
| CN201811110687.9A Pending CN110939429A (en) | 2018-09-21 | 2018-09-21 | Logging instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112647910A (en) * | 2020-12-22 | 2021-04-13 | 北京紫贝龙科技股份有限公司 | Water drive logging device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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