CN216342091U - Well depth gamma depth-measuring tracker - Google Patents
Well depth gamma depth-measuring tracker Download PDFInfo
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- CN216342091U CN216342091U CN202123103124.7U CN202123103124U CN216342091U CN 216342091 U CN216342091 U CN 216342091U CN 202123103124 U CN202123103124 U CN 202123103124U CN 216342091 U CN216342091 U CN 216342091U
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Abstract
The utility model relates to the technical field of drilling equipment, in particular to a well depth gamma sounding tracker. The device is fixedly installed on a support of a drilling machine and comprises a frame, a rotating shaft, a wire coil, a balancing weight and an encoder. The frame is fixedly arranged on a support of the drilling machine. The rotating shaft is fixedly arranged on the frame through a bearing seat. The rotating shaft is provided with an active section and a measuring section. The measuring section is provided with a lifting rope. One end of the lifting rope is connected with the rotating shaft, and the other end of the lifting rope is connected with the balancing weight. The wire coil is fixedly arranged on the active section of the rotating shaft. The wire coil is provided with a guide rope. One end of the guide rope is connected with the wire coil, and the other end of the guide rope is connected with the drill rod. The encoder is fixedly arranged at the end part of the rotating shaft and records the number of rotating turns of the rotating shaft. The device converts the linear motion of drilling rod into rotary motion through wire reel and pivot, utilizes the encoder to record the number of turns of pivot and measures the well depth. The utility model provides an auxiliary device for measuring the well depth outside the well in real time for drilling operation by improving the structure.
Description
Technical Field
The utility model relates to the technical field of drilling equipment, in particular to a well depth gamma sounding tracker.
Background
The natural gamma value of the stratum can reflect the change of the lithology of the stratum. In the drilling operation, directional drilling is carried out by utilizing a wireless inclinometer and gamma logging while drilling, so that the natural gamma value of a drilled stratum can be measured, drilling engineering and petroleum geology personnel can accurately analyze underground geological conditions, drilling design and construction process can be optimized in time, and a target stratum can be accurately drilled.
However, the TSJ-3000 drilling machine for construction cannot meet the requirement of installing a gamma well depth sensor of a wireless inclinometer while drilling. If no well depth sensor device is available, a specially-assigned person is needed to manually record gamma data, so that the working efficiency is low, and the accuracy of judging the lithology of the layer is reduced. Meanwhile, in the drilling process, the knowledge of the stratum parameters at any time is very important for a drilling engineer, and the knowledge provides a judgment basis for adjusting the track of the borehole, so that the drill bit can accurately drill a target layer, and the drilling rate of the borehole is improved.
In summary, in the drilling process of the TSJ-3000 drilling rig, how to design a device for measuring the well depth in real time to assist the gamma logging while drilling becomes a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The utility model aims to provide an auxiliary device for measuring the well depth outside a well in real time for drilling operation.
In order to achieve the purpose, the utility model adopts the following scheme: the well depth gamma sounding tracker is fixedly arranged on a support of a drilling machine and comprises a frame, a rotating shaft, a wire coil, a balancing weight and an encoder, wherein the frame is fixedly arranged on the support of the drilling machine and provides support for the well depth gamma sounding tracker;
the rotating shaft is fixedly arranged on the frame through a bearing seat, the rotating shaft is provided with an active section and a measuring section, a lifting rope is arranged on the measuring section, one end of the lifting rope is connected with the rotating shaft, the other end of the lifting rope is connected with a balancing weight, and the lifting rope rotates along with the rotating shaft and is wound on the outer circumference of the rotating shaft;
the wire coil is fixedly arranged at the active section of the rotating shaft, a guide rope is arranged on the wire coil, one end of the guide rope is connected with the wire coil, and the other end of the guide rope is connected with the drill rod, so that the drill rod moves downwards to drive the rotating shaft to rotate through the wire coil;
the encoder is fixedly arranged at the end part of the rotating shaft and records the number of rotating turns of the rotating shaft.
Preferably, the bearing seat is a bearing with a seat, the two bearings with the seat are respectively arranged at two ends of the rotating shaft, the driving section and the measuring section are positioned between the two bearings with the seat, the bearing with the seat has outstanding aligning performance and sealing performance, good working performance can be kept in a severe environment, and the bearing with the seat is suitable for the field environment of drilling operation, meanwhile, the bearing with the seat is convenient to install and maintain, and the use and maintenance cost of the well depth tracker is reduced.
Preferably, the encoder is connected at the end of the rotating shaft close to the measuring section, the rotating shaft of the encoder is connected with the end of the rotating shaft through a nut, the shell of the encoder is fixed with the frame through a sheet metal part, the nut is equivalent to a coupler, the end of the rotating shaft is connected with the rotating shaft of the encoder, the rotating shaft of the encoder rotates synchronously along with the rotating shaft, and the number of turns of the rotating shaft is accurately recorded.
Preferably, the encoder is connected with the gamma-ray logging-while-drilling system through a signal line, and the recorded rotation number is transmitted to the gamma-ray logging-while-drilling system, so that a drilling engineer can conveniently know the gamma value of the rock stratum at the real-time drilling depth position, and further the condition of underground drilling is judged.
As preferred, the one end of guide rope links to each other with the drum, and the other end is connected on the coaster that moves about, and the coaster that moves about links to each other with the drilling rod, utilizes the assembly pulley structure of the coaster that moves about, is favorable to reducing the impact load to the guide rope, and the drum of being convenient for drives the pivot and rotates more steadily, reduces the measuring error of encoder for measurement to the well depth is more accurate, helps improving the brill of well and meets the rate.
Preferably, the wire coil comprises an inner ring and an outer ring, the inner ring and the outer ring are connected through ribs, a plurality of ribs are uniformly distributed, the inner ring is fixedly mounted on the rotating shaft, the outer ring is connected with the guide rope, the wire coil is of a spoke type structure, the weight of the wire coil is reduced, the rotating resistance of the rotating shaft is reduced, meanwhile, the weight of the whole well depth tracker is reduced, and the influence on the stability of an original drilling machine is reduced.
Preferably, the end face of the outer ring is provided with an edge, so that the unwinding of the guide rope when the guide rope is wound on the wire coil is prevented, and the use reliability of the well depth tracker is improved.
Preferably, the lifting rope and the guide rope are steel wire ropes, the steel wire ropes are convenient to obtain on one hand, and on the other hand, the elongation of the steel wire ropes under the load can be predicted, so that the measurement accuracy is improved when the well depth is measured.
When the well depth gamma sounding tracker provided by the utility model is used, the guide rope moves towards the underground along with the drilling of the drill rod, and the wire coil and the rotating shaft synchronously rotate under the traction of the guide rope. The pivot is at the pivoted in-process, and the lifting rope is rolled up constantly, and the balancing weight moves upward along with the rolling of lifting rope. The encoder records the number of rotation turns of the rotating shaft, so that the descending distance of the drill rod can be conveniently calculated by a gamma logging while drilling system.
Compared with the prior art, the well depth gamma sounding tracker provided by the utility model has the following substantive characteristics and progresses:
1. the gamma depth-measuring tracker is fixedly arranged on a bracket of a drilling machine, the linear motion of a drill rod is converted into rotary motion through a wire coil and a rotating shaft, and the rotary number of turns of the rotating shaft is recorded by using an encoder to measure the depth of a well, so that the problem that a gamma depth-measuring sensor is difficult to be additionally arranged on some drilling machines to measure the depth of the well is solved, the workload of manual recording is reduced, and the drilling efficiency is improved;
2. this well depth gamma sounding tracker sets up the balancing weight for the guide rope keeps certain tension by the in-process that the drilling rod was towed, prevents that the pivot from idling, has improved the precision of measuring the well depth.
Drawings
FIG. 1 is a schematic diagram of a well depth gamma tracker in an embodiment of the present invention.
Reference numerals: the device comprises a frame 1, a bearing seat 2, a rotating shaft 3, an encoder 4, a wire coil 5, a balancing weight 6, a lifting rope 7, a guide rope 8 and a drilling machine support 9.
Detailed Description
The following detailed description of embodiments of the utility model refers to the accompanying drawings.
The gamma depth-measuring tracker shown in fig. 1 is used for measuring the well depth outside a well in real time and reflecting the underground drilling condition by matching with the formation gamma value measured in real time. The depth-sounding tracker converts the linear motion of the drill rod into rotary motion through the wire disc and the rotating shaft. The rotary turns of the rotary shaft are recorded by the encoder to measure the well depth, so that the problem that a gamma well depth sensor is difficult to be additionally arranged on some drilling machines to measure the well depth is solved, the workload of manual recording is reduced, and the drilling efficiency is improved.
A well depth gamma depth finder tracker shown in fig. 1 is fixedly mounted on a drill rig support 9. The well depth gamma sounding tracker comprises a frame 1, a rotating shaft 3, a wire coil 5, a balancing weight 6 and an encoder 4. The frame 1 is fixedly arranged on a drilling machine support 9 and provides support for a well depth gamma depth measurement tracker. Wherein, the frame 1 can be formed by welding a plurality of rectangular pipes. The frame 1 and the drill support 9 can be connected by bolts or welding.
The rotating shaft 3 is fixedly arranged on the frame 1 through a bearing seat 2. The shaft 3 has an active section and a measuring section. The measuring section is provided with a lifting rope 7. One end of the lifting rope 7 is connected with the rotating shaft 3, and the other end is connected with the balancing weight 6. The lifting rope 7 can be wound on the outer circumference of the rotating shaft 3 along with the rotation of the rotating shaft 3. The balancing weight 6 can be customized and processed, and can also be a steel pipe which is discarded in a drilling site.
And the wire coil 5 is fixedly arranged on the active section of the rotating shaft 3. The wire coil 5 is provided with a guide rope 8. One end of the guide rope 8 is connected with the wire coil 5, and the other end of the guide rope is connected with the drill rod to form that the drill rod moves downwards to drive the rotating shaft 3 to rotate through the wire coil 5. The balancing weight 6 is used for keeping certain tension in the process that the guide rope 8 is pulled by the drill rod, so that the rotating shaft is prevented from idling, and the precision of measuring the well depth is improved.
The encoder 4 is fixedly installed at the end of the rotating shaft 3 and is used for recording the number of rotation turns of the rotating shaft 3. The workload of manual recording depth sounding is reduced, and meanwhile, the measurement deviation caused by human factors is avoided.
Preferably, the bearing housing 2 is a seated bearing. Two bearings with seats are respectively arranged at two ends of the rotating shaft 3. The active section and the measuring section are located between the two seated bearings. The bearing with the seat has outstanding aligning performance and sealing performance, can keep good working performance in severe environment, is suitable for the field environment of drilling operation, and meanwhile, the bearing with the seat is convenient to install and maintain, and the use and maintenance cost of the well depth tracker is reduced. The pedestal bearing can be preferably a UCP308 pedestal bearing according to the actual use requirement.
Preferably, the encoder 4 is attached to the end of the shaft 3 near the measuring section. The rotary shaft of the encoder 4 is connected to the end of the rotary shaft 3 by a nut. The housing of the encoder 4 is fixed to the frame 1 by sheet metal parts. The nut corresponds to a coupling that couples the end of the rotating shaft 3 and the rotating shaft of the encoder 4. The rotation shaft of the encoder 4 rotates synchronously with the rotation shaft 3, and the number of rotation turns of the rotation shaft 3 is accurately recorded.
Preferably, the encoder 4 is connected to the gamma-ray logging-while-drilling system through a signal line, and transmits the recorded rotation number to the gamma-ray logging-while-drilling system. The method is convenient for a drilling engineer to know the gamma value of the rock stratum at the real-time depth of the drilling well, and further the condition of underground drilling is judged. The encoder may preferably be a rotating encoder disk of the type SM39A, which supplies 12V.
Preferably, the guide line 8 is connected at one end to the spool 5 and at the other end to the travelling block. The traveling block is connected with the drill rod. The pulley block structure of the traveling block is utilized, so that the impact load to the guide rope 8 in the drilling process is favorably reduced, the wire coil 5 can drive the rotating shaft 3 to rotate more stably, the measuring error of the encoder 4 is reduced, the measurement of the well depth is more accurate, and the drilling rate of drilling is favorably improved. The traveling block can be connected with the drill rod through the lifting lug, and is convenient to install and disassemble.
Preferably, as shown in fig. 1, the coil 5 comprises an inner ring and an outer ring. The inner ring and the outer ring are connected through ribs, and a plurality of ribs are uniformly distributed. The inner ring is fixedly arranged on the rotating shaft 3. The outer ring is connected to a guide rope 8. The wire coil 5 adopts a spoke type structure, which is beneficial to reducing the weight of the wire coil 5 and reducing the rotating resistance of the rotating shaft 3. Meanwhile, the weight of the whole well depth tracker is reduced, and the influence on the stability of the original drilling machine is reduced.
Preferably, the end face of the outer ring is provided with an edge, so that the unwinding condition is prevented when the guide rope is wound on the wire coil, and the use reliability of the well depth tracker is improved.
Preferably, the lifting rope 7 and the guiding rope 8 are both steel wire ropes. On one hand, the steel wire rope is convenient to obtain, on the other hand, the elongation of the steel wire rope under the load can be predicted, and when the well depth is measured, the measurement accuracy is improved.
When the well depth gamma depth measurement tracker provided in the embodiment is used, the guide rope moves towards the underground along with the drilling of the drill rod, and the wire coil and the rotating shaft synchronously rotate under the traction of the guide rope. The pivot is at the pivoted in-process, and the lifting rope is rolled up constantly, and the balancing weight moves upward along with the rolling of lifting rope. The encoder records the number of rotation turns of the rotating shaft, so that the descending distance of the drill rod can be conveniently calculated by a gamma logging while drilling system.
Wherein the winding diameter of the rotating shaft in the measuring section is preferably 50 mm. The winding diameter of the coil is preferably 600 mm. So set up, when frame mounting height is limited, be favorable to shortening the length of lifting rope, the installation of the balancing weight of being convenient for.
When the well depth is measured, the length of the drill rods is 9-11 meters, so that the well depth can be roughly estimated by adding the number of the added drill rods. The depth measurement principle of the well depth gamma depth measurement tracker can be understood as that the length of each additionally-arranged drill rod is continuously measured and accumulated to obtain an accumulated value. Meanwhile, the length of a certain position of the drill rod from the bottom end of the drill rod can be measured in real time to obtain a real-time value. And adding the accumulated value and the real-time value by the gamma logging while drilling system to obtain the real-time well depth.
The present invention is not limited to the specific technical solutions described in the above embodiments, and other embodiments may be made in the present invention in addition to the above embodiments. It will be understood by those skilled in the art that various changes, substitutions of equivalents, and alterations can be made without departing from the spirit and scope of the utility model.
Claims (8)
1. The utility model provides a well depth gamma sounding tracker, fixed mounting uses on the support of rig which characterized in that includes: the device comprises a frame, a rotating shaft, a wire coil, a balancing weight and an encoder, wherein the frame is fixedly arranged on a support of a drilling machine and provides support for a well depth gamma depth measurement tracker;
the rotating shaft is fixedly arranged on the frame through a bearing seat, the rotating shaft is provided with an active section and a measuring section, a lifting rope is arranged on the measuring section, one end of the lifting rope is connected with the rotating shaft, the other end of the lifting rope is connected with a balancing weight, and the lifting rope rotates along with the rotating shaft and is wound on the outer circumference of the rotating shaft;
the wire coil is fixedly arranged at the active section of the rotating shaft, a guide rope is arranged on the wire coil, one end of the guide rope is connected with the wire coil, and the other end of the guide rope is connected with the drill rod, so that the drill rod moves downwards to drive the rotating shaft to rotate through the wire coil;
the encoder is fixedly arranged at the end part of the rotating shaft and records the number of rotating turns of the rotating shaft.
2. The well depth gamma depth finder tracker of claim 1, wherein the bearing mount is a mounted bearing, two mounted bearings are respectively mounted at both ends of the rotating shaft, and the active section and the measurement section are located between the two mounted bearings.
3. The well depth gamma depth sounding tracker of claim 1, wherein the encoder is connected to an end portion of the rotating shaft near the measuring section, a rotating shaft of the encoder is connected to the end portion of the rotating shaft through a nut, and a housing of the encoder is fixed to the frame through a sheet metal part.
4. The well depth gamma depth sounding tracker of claim 1, wherein the encoder is connected to the gamma-ray logging-while-drilling system via a signal line to transmit the recorded number of turns to the gamma-ray logging-while-drilling system.
5. The well depth gamma depth finder tracker of claim 1 wherein the guide rope is attached at one end to the spool and at the other end to a travelling block attached to the drill pipe.
6. The well depth gamma depth sounding tracker of claim 1, wherein the wire coil comprises an inner ring and an outer ring, the inner ring and the outer ring are connected through ribs, the ribs are uniformly distributed, the inner ring is fixedly mounted on the rotating shaft, and the outer ring is connected with the guide rope.
7. The well depth gamma depth finder tracker of claim 6 wherein an edge is provided on an end surface of the outer ring.
8. The well depth gamma depth finder tracker of claim 1, wherein the lifting and guide lines are steel wire ropes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123103124.7U CN216342091U (en) | 2021-12-08 | 2021-12-08 | Well depth gamma depth-measuring tracker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123103124.7U CN216342091U (en) | 2021-12-08 | 2021-12-08 | Well depth gamma depth-measuring tracker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216342091U true CN216342091U (en) | 2022-04-19 |
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ID=81164201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123103124.7U Active CN216342091U (en) | 2021-12-08 | 2021-12-08 | Well depth gamma depth-measuring tracker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216342091U (en) |
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2021
- 2021-12-08 CN CN202123103124.7U patent/CN216342091U/en active Active
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