CN112576242A - Anti-interference pulse generator driving head - Google Patents
Anti-interference pulse generator driving head Download PDFInfo
- Publication number
- CN112576242A CN112576242A CN202011437292.7A CN202011437292A CN112576242A CN 112576242 A CN112576242 A CN 112576242A CN 202011437292 A CN202011437292 A CN 202011437292A CN 112576242 A CN112576242 A CN 112576242A
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- China
- Prior art keywords
- head
- mushroom head
- conical structure
- pulse generator
- interference
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 235000001674 Agaricus brunnescens Nutrition 0.000 claims abstract description 30
- 239000002002 slurry Substances 0.000 claims description 12
- 239000007769 metal material Substances 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000005553 drilling Methods 0.000 abstract description 11
- 230000008859 change Effects 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000002349 favourable effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000035485 pulse pressure Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B47/18—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 through the well fluid, e.g. mud pressure pulse telemetry
Abstract
The invention relates to the technical field of wireless inclinometers while drilling, and particularly discloses an anti-interference pulse generator driving head which comprises a mushroom head and a restrictor ring, wherein the mushroom head is connected with the restrictor ring in a sliding fit manner, one end of the mushroom head is of a first conical structure, the restrictor ring is provided with a second conical structure, the first conical structure is matched with the second conical structure, and the first conical structure and the second conical structure are both conical. According to the invention, the mushroom head and the current-limiting ring structure are arranged, so that the waveform strength is adjustable, the attenuation resistance and the anti-interference capability of the transmitted signal are stronger, the pressure change is more uniform, the signal is more anti-interference, and the later decoding is more facilitated.
Description
Technical Field
The invention relates to the technical field of wireless inclinometer while drilling, in particular to an anti-interference pulse generator driving head.
Background
The wireless inclinometer while drilling is widely applied to directional drilling of excavation-free engineering such as geological exploration, oil development, coal mining, municipal administration, traffic, water conservancy and the like. The wireless inclinometer while drilling consists of a ground device and an underground instrument string. The data processor of the ground equipment is responsible for transmitting signals from the underground instrument string mud pulse pressure, decoding the data, and transmitting the data to the remote data processor for use by engineering personnel. The underground instrument string consists of a probe assembly, a pulse generator, a power supply assembly, an instrument seat key and the like. The pulse generator is used for orderly generating mud pulse pressure under the control of the probe assembly and transmitting data and signals to a ground instrument to finish the excavation-free drilling engineering. The pulse generator is an important component of the wireless inclinometer while drilling and is an actuating mechanism of the instrument, so that the performance and the working stability of the pulse generator directly determine the stability of the whole instrument. The working principle of the driving head of the existing wireless inclinometer pulse generator is shown in fig. 1, and the driving head moves to change the flow area of mud, change pressure change and form pulses (shown in fig. 2). The driving head is influenced by the reacting force of mud in the moving process, the pressure change is uneven, the signal is not smooth, and the signal is interfered by sawtooth waves, so that the later decoding is influenced.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an anti-interference pulse generator driving head aiming at the defects in the prior art, and the mushroom head and the current-limiting ring structure are arranged, so that the waveform strength is adjustable, the attenuation resistance and the anti-interference capability of the transmitted signal are stronger, the pressure change is more uniform, the signal is more anti-interference, and the later decoding is more facilitated.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides an anti-interference impulse generator drive head, includes mushroom head and restrictor ring, mushroom head and restrictor ring sliding fit are connected, the one end of mushroom head is first toper structure, be provided with second toper structure on the restrictor ring, first toper structure with second toper structure looks adaptation, first toper structure and second toper structure all are the taper shape.
Preferably, the cross section of the first conical structure and the cross section of the second conical structure are both circular.
Preferably, the cross-sectional area of the first conical structure increases from left to right, and the cross-sectional area of the second conical structure decreases from left to right.
Preferably, a first slurry channel is arranged inside the mushroom head, a second slurry channel is arranged inside the flow limiting ring, and the first slurry channel is communicated with the second slurry channel.
Preferably, the outer surface of the mushroom head is in sliding fit connection with the inner surface of the restrictor ring.
Preferably, the mushroom head and the flow restricting ring are both made of metal materials.
By adopting the technical scheme, the anti-interference pulse generator driving head provided by the invention has the following beneficial effects: through set up first toper structure and second toper structure on mushroom head and restrictor ring respectively, it is more even that the mushroom head receives mud reaction force in the motion process for the wave form is strong and weak adjustable, and the anti-attenuation of transmitted signal and interference killing feature are stronger, and pressure variation is more even, makes the signal anti-interference more, more is favorable to the later stage to decode, thereby more favourable and the drilling operation of drilling team.
Drawings
FIG. 1 is a schematic diagram of a conventional driving head of a pulse generator;
FIG. 2 is a pulse waveform diagram of a conventional pulser-driven head;
FIG. 3 is a schematic structural diagram according to a first embodiment of the present invention;
FIG. 4 is a schematic structural diagram according to a second embodiment of the present invention;
FIG. 5 is a pulse waveform diagram of the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
As shown in fig. 3-4, in the structural schematic of the present invention, the driving head of the anti-interference pulse generator includes a mushroom head and a restrictor, the restrictor is on the left in the figure, the mushroom head is connected with the restrictor in a sliding fit, one end of the mushroom head is a first tapered structure, the restrictor is provided with a second tapered structure, the first tapered structure is adapted to the second tapered structure, and both the first tapered structure and the second tapered structure are conical. It is understood that the cross section of the first conical structure and the cross section of the second conical structure are both circular; the cross sectional area of the first conical structure is sequentially increased from left to right, and the cross sectional area of the second conical structure is sequentially decreased from left to right. The present invention redesigns the structure of the mushroom head and the restrictor ring. The mushroom head is designed into a conical structure, and the flow-limiting ring is correspondingly designed into the conical structure, so that the pressure change is more uniform.
Specifically, a first slurry channel is arranged inside the mushroom head, a second slurry channel is arranged inside the flow limiting ring, and the first slurry channel is communicated with the second slurry channel; the outer surface of the mushroom head is connected with the inner surface of the flow-limiting ring in a sliding fit manner. It can be understood that the mushroom head and the restrictor ring are made of metal materials.
Specifically, fig. 5 is a pulse waveform diagram of the present invention, in which the driving head of the pulse generator makes the waveform strength adjustable, the transmitted signal has stronger anti-attenuation and anti-interference capabilities, and the pressure change is more uniform, so that the signal is more anti-interference, and is more favorable for later decoding.
The mushroom head pressure-reducing device is reasonable in design and unique in structure, firstly, the reaction force applied to the mushroom head in the movement process is more uniform, the waveform strength is adjustable, the attenuation resistance and the anti-interference capability of the transmitted signal are higher, the pressure change is more uniform, sawtooth waves do not exist, and the pressure wave is more regular; and secondly, the requirement on mud is smaller, and the drilling operation with a drilling team is more facilitated.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (6)
1. An anti-interference pulse generator drive head, characterized by: including mushroom head and restrictor ring, mushroom head and restrictor ring sliding fit are connected, the one end of mushroom head is first toper structure, be provided with second toper structure on the restrictor ring, first toper structure with second toper structure looks adaptation, first toper structure and second toper structure all are the taper shape.
2. The tamper resistant pulser-driven head of claim 1, wherein: the cross section of the first conical structure and the cross section of the second conical structure are both circular.
3. The tamper resistant pulser-driven head of claim 1, wherein: the cross sectional area of the first conical structure is sequentially increased from left to right, and the cross sectional area of the second conical structure is sequentially decreased from left to right.
4. The tamper resistant pulser-driven head of claim 1, wherein: the mushroom head is characterized in that a first slurry channel is arranged inside the mushroom head, a second slurry channel is arranged inside the flow limiting ring, and the first slurry channel is communicated with the second slurry channel.
5. The tamper resistant pulser-driven head of claim 1, wherein: the outer surface of the mushroom head is connected with the inner surface of the flow limiting ring in a sliding fit mode.
6. The tamper resistant pulser-driven head of claim 1, wherein: the mushroom head and the flow limiting ring are both made of metal materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011437292.7A CN112576242A (en) | 2020-12-07 | 2020-12-07 | Anti-interference pulse generator driving head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011437292.7A CN112576242A (en) | 2020-12-07 | 2020-12-07 | Anti-interference pulse generator driving head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112576242A true CN112576242A (en) | 2021-03-30 |
Family
ID=75130832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011437292.7A Pending CN112576242A (en) | 2020-12-07 | 2020-12-07 | Anti-interference pulse generator driving head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112576242A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2787829Y (en) * | 2004-11-16 | 2006-06-14 | 中国海洋石油总公司 | Positive mud pulse generator |
| CN201560757U (en) * | 2009-12-21 | 2010-08-25 | 北京中联博韬科技咨询有限公司 | Mud pulse generator |
| CN103015990A (en) * | 2012-12-26 | 2013-04-03 | 西安思坦仪器股份有限公司 | Downhole mud positive pulse generator |
| CN203271731U (en) * | 2013-02-21 | 2013-11-06 | 广东普洛测控科技有限公司 | Novel slurry pulse generator |
| CN103670380A (en) * | 2013-12-18 | 2014-03-26 | 贝兹维仪器(苏州)有限公司 | Down-hole slurry pulse signal generation device |
| CN205154151U (en) * | 2015-11-20 | 2016-04-13 | 武汉海阔科技有限公司 | Mud turbine formula impulse generator from electricity generation |
| CN106640059A (en) * | 2015-10-30 | 2017-05-10 | 中石化石油工程技术服务有限公司 | Continuous wave positive pulse generator driven by linear motor |
| CN210598965U (en) * | 2019-10-17 | 2020-05-22 | 刘剑冰 | Underground pulse generator for oil field drilling |
| CN111566313A (en) * | 2018-01-09 | 2020-08-21 | 瑞梅井下技术有限公司 | Hydraulic auxiliary pulser system and related method |
-
2020
- 2020-12-07 CN CN202011437292.7A patent/CN112576242A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2787829Y (en) * | 2004-11-16 | 2006-06-14 | 中国海洋石油总公司 | Positive mud pulse generator |
| CN201560757U (en) * | 2009-12-21 | 2010-08-25 | 北京中联博韬科技咨询有限公司 | Mud pulse generator |
| CN103015990A (en) * | 2012-12-26 | 2013-04-03 | 西安思坦仪器股份有限公司 | Downhole mud positive pulse generator |
| CN203271731U (en) * | 2013-02-21 | 2013-11-06 | 广东普洛测控科技有限公司 | Novel slurry pulse generator |
| CN103670380A (en) * | 2013-12-18 | 2014-03-26 | 贝兹维仪器(苏州)有限公司 | Down-hole slurry pulse signal generation device |
| CN106640059A (en) * | 2015-10-30 | 2017-05-10 | 中石化石油工程技术服务有限公司 | Continuous wave positive pulse generator driven by linear motor |
| CN205154151U (en) * | 2015-11-20 | 2016-04-13 | 武汉海阔科技有限公司 | Mud turbine formula impulse generator from electricity generation |
| CN111566313A (en) * | 2018-01-09 | 2020-08-21 | 瑞梅井下技术有限公司 | Hydraulic auxiliary pulser system and related method |
| CN210598965U (en) * | 2019-10-17 | 2020-05-22 | 刘剑冰 | Underground pulse generator for oil field drilling |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210330 |
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| RJ01 | Rejection of invention patent application after publication |