CN109798105B - Measurement-while-drilling instrument and measurement-while-drilling system - Google Patents
Measurement-while-drilling instrument and measurement-while-drilling system Download PDFInfo
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- CN109798105B CN109798105B CN201711123192.5A CN201711123192A CN109798105B CN 109798105 B CN109798105 B CN 109798105B CN 201711123192 A CN201711123192 A CN 201711123192A CN 109798105 B CN109798105 B CN 109798105B
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Abstract
The invention relates to a measurement while drilling instrument, comprising: the measuring nipple is cylindrical, and a drilling fluid overflowing channel extending along the axial direction is arranged in the measuring nipple; a crossover sub disposed within the gauging sub; the measuring module is connected to one end of the measuring short section; and a connector is arranged between the conversion joint and the measuring module, and the conversion joint is connected with the measuring module through the connector. The invention also relates to a measurement while drilling system comprising: a drill pipe and surface equipment, wherein the measurement while drilling instrument is mounted on the drill pipe.
Description
Technical Field
The invention relates to the field of underground information measurement of petroleum drilling, in particular to a measurement-while-drilling instrument. The invention also relates to a measurement-while-drilling system comprising the measurement-while-drilling instrument.
Background
At present, drilling fluid pulse measurement while drilling is commonly adopted by home and abroad measurement while drilling systems to upload underground measurement data, and the system plays an important role in drilling engineering. However, when the drilling fluid works in the gas-filled or leaking stoppage material-containing drilling fluid, the signal sent to the ground by using the drilling fluid pulse measurement while drilling is very weak, and even the signal cannot work normally.
For this reason, electromagnetic measurement while drilling techniques have been developed in the prior art. The electromagnetic measurement while drilling instrument uses a closed loop formed by a drill rod, drilling fluid and a stratum as a transmission channel, and has the characteristics of no influence of a drilling fluid medium, suitability for various drilling processes, short measurement time, simplicity in operation, few easily-damaged parts, low application cost and the like. The electromagnetic measurement while drilling solves the technical problem that the pulse measurement while drilling of the drilling fluid can not work normally in the non-liquid phase drilling fluid, and is a key technology for using non-liquid phase fluids such as air and the like to orient wells and horizontal wells and improving the yield of low-pressure and low-permeability oil and gas fields.
However, electromagnetic transmission is affected by the formation resistivity, and generally, the measurement depth of electromagnetic measurement while drilling is in the range of 2000 meters to 3000 meters, and the formation resistivity is too high or too low to work normally. The mud pulse transmission is not influenced by the formation resistivity, and the measurement depth can reach more than 6000 meters. However, when the mud pulse measurement while drilling is performed, the drilling fluid is used as a transmission channel, and the drilling fluid cannot normally work in the occasions of air and foam drilling, underbalanced drilling, leakage stoppage while drilling and the like.
Therefore, based on the prior art, a multipurpose measurement-while-drilling instrument which can be connected with a mud pulse generator and an electromagnetic measurement-while-drilling instrument is needed, and the multipurpose measurement-while-drilling instrument is important for improving the drilling efficiency of a low-permeability stratum.
Disclosure of Invention
Aiming at least some technical problems, the invention aims to provide a measurement-while-drilling instrument which can be respectively connected with an electromagnetic wave transmission module and a mud pulse signal transmission module in a hanging mode, has better applicability and widens the application range of the instrument. Meanwhile, the measurement while drilling instrument has high integration level, shortens the length of the instrument, can be conveniently installed on a drill rod, has small volume and obviously saves the underground space.
The invention also provides a measurement while drilling system which comprises the measurement while drilling instrument.
According to a first aspect of the present invention, there is provided a measurement-while-drilling instrument comprising: the measuring short section is of a cylindrical structure, two ends of the measuring short section are respectively provided with a positive conical connecting buckle and a negative conical connecting buckle, and a drilling fluid overflowing channel is axially arranged at the center of the measuring short section; the adapter is arranged inside the measuring short section close to the negative conical connecting buckle, is provided with a cylindrical body part, and is provided with a convex shoulder at one end; the measuring module is connected to the negative conical connecting buckle of the measuring short section; and a connector is arranged between the adapter and the measuring module, and the shoulder part of the adapter is in butt joint with the measuring module through the contact pin.
In a preferred embodiment, the adapter comprises a first cylindrical portion of large diameter and a second cylindrical portion of small diameter.
In a preferred embodiment, the second cylindrical portion is provided with a diametric through-hole, and a central bore is provided in the adapter, which bore extends through the second cylindrical portion and terminates in and communicates with the through-hole.
In a preferred embodiment, a plurality of grooves for mounting electronic components are uniformly arranged on the outer peripheral surface of the lateral gauge nipple along the circumferential direction, and the bottom of each groove is provided with a wiring hole which can be aligned with the through hole in the adapter.
In a preferred embodiment, the connector comprises a female pin arranged at the end of the measurement module and a male pin mounted at the end of the second cylindrical portion of the adapter.
In a preferred embodiment, the adapter and the measuring module are connected together by the female pin and the male pin, and a sealing ring is arranged between the female pin and the male pin.
In a preferred embodiment, a drill pipe antenna and insulation assembly are attached to the end of the measurement module distal to the crossover connection.
In a preferred embodiment, one end of the measuring module, which is far away from the adapter connector, is connected with a non-magnetic drill collar and an insulating assembly.
In a preferred embodiment, a cylindrical cavity with a diameter larger than that of the drilling fluid flow passage is arranged at one end of the measuring nipple connected with the measuring module, so that a shoulder is formed at the bottom of the cylindrical cavity, and the adapter is mounted on the shoulder.
According to a second aspect of the present invention, there is provided a measurement-while-drilling system comprising: a drill stem; and surface equipment, wherein the measurement while drilling instrument is installed on the drill rod.
Drawings
The invention will now be described with reference to the accompanying drawings.
FIG. 1 shows a structural cross-sectional view of a measurement-while-drilling instrument connected with an electromagnetic measurement-while-drilling instrument according to the present invention.
FIG. 2 shows the structure of an adapter in the measurement while drilling instrument of FIG. 1.
FIG. 3 shows a cross-sectional view of a configuration of a measurement-while-drilling instrument coupled to a mud pulse generator according to the present invention.
FIG. 4 shows a measurement-while-drilling system according to the present invention.
In the present application, the drawings are all schematic and are used only for illustrating the principles of the invention and are not drawn to scale.
Detailed Description
The invention is described below with reference to the accompanying drawings.
FIG. 1 shows a cross-sectional view of a measurement-while-drilling instrument 100 connected with an electromagnetic measurement-while-drilling instrument according to the present invention. As shown in FIG. 1, the measurement-while-drilling instrument 100 comprises a measurement nipple 6, wherein the measurement nipple 6 comprises a body portion 6-1 which is substantially cylindrical, and a positive conical connecting buckle 61 and a negative conical connecting buckle 62 are respectively arranged at two ends of the body portion 6-1. A drilling fluid flow passage 60 is provided axially in the centre of the body portion 6-1. This arrangement of the gauging nipple 6 not only allows safe and effective flow-through of drilling fluid, but also allows the body portion 6-1 to be quickly and easily attached to a drill pipe (not shown) by means of a tapered connector coupling. Such attachment means are well known in the art and will not be described in detail herein.
According to the present invention, the measurement-while-drilling instrument 100 further comprises an adapter 5. As shown in fig. 1, the crossover sub 5 is disposed near the end of the gauging nipple 6 where the negative taper connector 62 is disposed. For this purpose, a cylindrical cavity with a diameter larger than the drilling fluid flow channel 60 is provided at the end of the measuring nipple 6 provided with the negative taper connector 62, so that a shoulder 64 is formed at the bottom of the cylindrical cavity, and the adapter 5 is mounted on the shoulder 64. In this way, the crossover sub 5 is held in place by engagement with the body portion 6-1 of the gauging nipple 6 and the shoulder 64.
Fig. 2 shows the structure of the crossover joint 5. As shown in fig. 2, the adapter 5 includes a first cylindrical portion 5-6 of a large diameter and a second cylindrical portion 5-7 of a small diameter. The first cylindrical portion 5-6 is mounted on the shoulder 64 and the second cylindrical portion 5-7 is directed axially outwards of the gauging nipple 6. A central passage 5-2 is provided in the interior of the adapter 5, which central passage 5-2 extends through the second cylindrical portion 5-7 and terminates at a central position in the first cylindrical portion 5-6. Meanwhile, a drilling fluid circulation passage (not shown) is provided inside the crossover joint for the drilling fluid to flow therethrough.
In addition, several side holes in the radial direction are provided in the first cylindrical portion 5-6 of the adapter 5. The side openings are evenly distributed in the axial direction, for example, in the embodiment shown two radially symmetrical side openings 5-3 and 5-4 are provided. And the side holes communicate with the central bore 5-2 at a central position of the first cylindrical portion 5-6.
In this embodiment, in order to ensure the relative sealing between the central bore 5-2 of the crossover sub 5 and the drilling fluid flow passage 60 of the gauging nipple 6. A sealing ring is provided at the junction of the crossover sub 5 and the body portion 6-1 of the gauging nipple 6. For example, a seal ring 5-5 is provided between the first cylindrical portion 5-6 of the crossover sub 5 and the inner wall of the body portion 6-1 of the gauging nipple 6. The sealing ring 5-5 ensures the sealing of the central bore 5-2 of the crossover 5, in particular, and prevents drilling fluid from entering the interior of the crossover 5 and affecting the operational performance of the components in the crossover 5.
According to the present invention, the measurement-while-drilling instrument 100 further includes a measurement module 3 connected to one end (upper end in fig. 1) of the measurement nipple 6. The measuring module 3 comprises a shell part 3-1, the shell part 3-1 is constructed into a cylindrical structure similar to the body part 6-1 of the measuring short section 6, and a positive conical connecting buckle and a negative conical connecting buckle which are matched with the conical connecting buckle of the measuring short section 6 are respectively arranged at two ends of the shell part 3-1. As shown in fig. 1, the positive tapered connection port of the measurement module 3 is connected with the negative tapered connection buckle 62 of the measurement nipple 6. The taper connecting buckle structure can quickly connect the measuring module 3 and the measuring nipple 6 together, so that the installation is simple and convenient, and the installation efficiency is greatly improved.
In this embodiment, the measuring module 3 further comprises an insulating member 3-2 mounted inside the housing portion 3-1, the insulating member 3-2 having a cylindrical shape with one end (lower end in fig. 1) connected to the second cylindrical portion 5-7 of the adapter 5. According to the invention, a connector is provided between the crossover connection 5 and the insulation module 3-2, the crossover connection 5 being connected to the measuring module 3 via the connector.
As shown in fig. 1, the connector includes a female pin 4-1 and a male pin 4-2. The female pin 4-1 is disposed at one end of the insulation assembly 3-2 connected to the second cylindrical portion 5-7 of the adapter 5, and the male pin 4-2 is mounted at the end of the second cylindrical portion 5-6 of the adapter 5. Thus, the adapter 5 and the measurement module 3 are stably mounted in a butt joint by the female pin 4-1 and the male pin 4-2. The female contact pin 4-1 and the male contact pin 4-2 are respectively arranged on the measuring module 3 and the measuring short section 6, and the structure greatly facilitates the installation, the disassembly and the maintenance of the measuring module 3 and the measuring short section 6.
According to the invention, several grooves are provided on the outer circumferential surface of the measuring nipple 6, which grooves are evenly arranged in the circumferential direction. For ease of discussion, two diametrically opposed grooves 6-2 and 6-5 are shown in FIG. 1. And the bottoms of the grooves 6-2 and 6-5, which are close to the end, provided with the negative conical buckle 62, of the measuring nipple 6, are respectively provided with a wiring hole 6-8 and a wiring hole 6-9. After installation, the side openings 5-3 and 5-4 of the adapter 5 are aligned with the wire connection openings 6-8 and 6-9, respectively, such that the recesses 6-2 and 6-5 communicate with the central opening 5-2 of the adapter 5. Thus, the central bore 5-2 of the adapter 5 and the groove form a communicating channel via the lateral bores and the connecting bore, in which channel the necessary wires can be arranged in order to switch the line hanging centrally in the instrument into the grooves 6-2 and 6-5 of the measuring nipple 6. Of course, more or fewer grooves may be provided as desired for a particular situation as would be apparent to one skilled in the art. For example, more grooves may be formed to accommodate measurement modules with various functions, such as gamma, weight on bit, torque, drilling fluid pressure, etc., thereby expanding the range of applications of the measurement while drilling instrument 100.
The necessary electronics modules of the measurement while drilling instrument 100 may be disposed within the recesses 6-2 and 6-5. For example, in the embodiment shown in FIG. 1, a power source 7, which power source 7 may be a battery pack, is mounted within the recess 6-2. At the same time, a circuit board 8 is mounted in the recess 6-5. Through the passage as described above, the power supply 7 and the circuit board 8 are connected to each other with a wire, so that the power supply 7 can supply power to the circuit board 8. The recesses 6-2 and 6-5 are closed by cover plates 6-3 and 6-4, respectively, and are fixed by screws 6-7. In order to enhance the sealing of the grooves 6-2 and 6-5, sealing rings 6-6 are provided at the cover plates 6-3 and 6-4, respectively.
Thus, the necessary electronic modules of the measurement-while-drilling instrument 100, such as the power supply 7 and the circuit board 8, are integrated on one measurement sub 6. Therefore, the length of the whole instrument is greatly shortened, and the integration level is improved. Because the measurement-while-drilling instrument 100 can be made as a compact sub, it can save valuable downhole space, allowing more space for the drill pipe used to install the measurement-while-drilling instrument 100 to install other electronics. In addition, the measurement-while-drilling instrument with the structure is convenient to mount, dismount, maintain and transport.
According to the invention, the drilling antenna 1 is connected to the negative conical connection button of the housing part 3-1 of the measuring module 3. As shown in FIG. 1, a borehole antenna 1 includes a borehole antenna upper section 2-1 and a borehole antenna lower section 2-2. The upper drilling antenna section 2-1 and the lower drilling antenna section 2-2 are each arranged in a cylindrical shape with positive and negative conical coupling buttons, similar to the structure of the housing section 3-1 of the measuring module 3. Thus, the upper drilling antenna section 2-1 and the lower drilling antenna section 2-2 are connected together by positive and negative tapered connectors to form the drilling antenna 1. The drilling antenna 1 is connected with a negative conical connecting buckle of a measuring module 3 connected on a measuring short section 6 through a positive conical connecting buckle of a lower section 2-2 of the drilling antenna, so that the measurement while drilling instrument 100 is formed.
In the present embodiment, as shown in fig. 1, an insulation assembly 1-3 is provided inside a lower section 2-2 of the borehole antenna, and one end (lower end in fig. 1) of the insulation assembly 1-3 is connected to an insulation assembly 3-2 inside a measurement module 3. An upper seat key 1-2 connected to the other end (the upper end in the figure 1) of the insulating component 1-3 is arranged inside the upper section 2-1 of the drilling antenna, and a fishing head 1-1 is arranged at one end, far away from the insulating component 1-3, of the upper seat key 1-2. The measurement-while-drilling instrument 100 is connected to the drill pipe through the fishing head 1-1 and the negative taper connecting buckle of the upper section 2-1 of the drilling antenna. The structure of the measurement while drilling instrument 100 has strong stability, safe and reliable operation, simple and quick installation and connection, and convenient disassembly and maintenance.
FIG. 3 shows a cross-sectional view of a measurement-while-drilling instrument 200 according to another embodiment of the present invention. The measurement-while-drilling instrument 200 of this embodiment is used in conjunction with a mud pulser. As shown in fig. 2, the measurement-while-drilling instrument 200 connected with the mud pulse generator is different from the structure of the measurement-while-drilling instrument 100 connected with the electromagnetic measurement-while-drilling instrument in that one end of the measurement module 3 of the measurement-while-drilling instrument 200, which is far away from the measurement nipple 6, is connected with a non-magnetic drill collar 20. And an insulating component, an upper seat key 1-2 and a fishing head 1-1 are arranged in the non-magnetic drill collar 20.
The method of installing the measurement while drilling instrument 100 according to the present invention is briefly described below. First, the battery pack 7 and the circuit board 78 are mounted in the grooves 6-2 and 6-5 of the body portion 6-1, respectively. The battery pack 7 can supply power to electronic modules such as the circuit board 8 through the wires by passing the wires through the holes connecting the grooves 6-2 and 6-5. Thereafter, the seal rings 6-6 are installed in both the grooves 6-2 and 6-5, and the cover plates 6-3 and 6-4 are closed over the grooves 6-2 and 6-5 and fixed by screws 6-7. Subsequently, the male pin 4-2 is fitted to the end of the second cylindrical portion 5-7 of the adapter 5. The adapter 5 is then mounted on the internal shoulder 64 of the gauging sub 6, while ensuring that the lateral openings 5-3 and 5-4 of the adapter 5 are aligned with the wiring openings 6-8 and 6-9 at the bottom of the recesses 6-2 and 6-5, respectively, and that the sealing rings 5-5 are mounted between the outer wall of the first cylindrical portion 5-6 of the adapter 5 and the inner wall of the gauging sub 6. The circuit board 8 is connected to the measuring module 3 by means of wires arranged in the passage between the adapter 5 and the recess 7-2. And then, assembling the upper section 2-1 of the drilling antenna and the lower section 2-2 of the drilling antenna, performing insulation treatment on threads (not shown) among the conical connecting buckles, and then sequentially connecting the fishing head 1-1, the upper seat key 1-2, the insulation assembly 3, the measuring module 3 and the female pin 4-1 of the connector. Finally, the female contact pin 4-1 and the male contact pin 4-2 are installed in a butt joint mode, and the measuring module 3 and components connected with the measuring module are connected to the body portion 6-1 of the measuring short section 6, so that the measurement while drilling instrument 100 is obtained.
According to another aspect of the invention, a measurement while drilling system is also provided. As shown in FIG. 4, the measurement-while-drilling system includes a drill pipe 150 sleeved with a casing 170, a measurement-while-drilling instrument 100 according to the present invention mounted on the drill pipe 150, and a surface apparatus 400 for processing signals. The path of the signal transmission is shown by arrow 180 in fig. 2. That is, the data signals measured by the measurement-while-drilling instrument 100 are transmitted to the surface equipment 400 for processing.
According to the measurement-while-drilling instrument 100, the battery pack 7 and the circuit board 8 are integrated on the measuring nipple 6, so that the integral integration level of the instrument is improved, and the length of the instrument is shortened. Meanwhile, the measurement-while-drilling instrument 100 can be compatible with an electromagnetic measurement-while-drilling instrument or a mud pulse generator, and the application range of the instrument is widened. And mechanical and electrical communication of the whole instrument is realized through the adapter 5 with the pore channel, and the measuring module 3 is communicated with a power supply or a circuit in the measuring short section 6 through a lead. The measurement signal is uploaded to the surface via the drilling antenna 1 or mud pulser. All of these results in the measurement while drilling instrument 100 according to the present invention having a high integration level and a wide application range.
Finally, it should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and do not limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing examples, or that equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A measurement-while-drilling instrument, comprising:
the measuring nipple is cylindrical, and a drilling fluid overflowing channel extending along the axial direction is arranged in the measuring nipple;
a crossover sub disposed within the gauging sub; and
the measuring module is connected to one end of the measuring short section;
the measuring device comprises a measuring module, a conversion joint, a measuring nipple and a measuring device, wherein a connector is arranged between the conversion joint and the measuring module, the conversion joint is connected with the measuring module through the connector, the conversion joint comprises a first cylindrical part with a large diameter and a second cylindrical part with a small diameter, a central channel is arranged in the second cylindrical part, a through hole along the diameter direction is arranged in the first cylindrical part, the central channel is communicated with the through hole, a plurality of grooves used for mounting electronic components are uniformly arranged on the peripheral surface of the measuring nipple along the circumferential direction, and a wiring hole aligned with the through hole in the conversion joint is arranged at the bottom of each groove, so that a line hung in the center of an instrument can be converted into the grooves, and the electronic modules can be integrated on one measuring nipple.
2. The measurement-while-drilling instrument of claim 1, wherein the connector comprises a female pin disposed at an end of the measurement module and a male pin mounted within the second cylindrical portion of the adapter.
3. The measurement-while-drilling instrument as recited in claim 2, wherein the adapter and the measurement module are connected together by the female pin and the male pin, and a sealing ring is disposed between the female pin and the male pin.
4. The measurement-while-drilling instrument of any one of claims 1 to 3, wherein a drill pipe antenna and an insulation assembly are connected to an end of the measurement module remote from the crossover sub connection.
5. The measurement-while-drilling instrument of any one of claims 1 to 3, wherein a non-magnetic drill collar and an insulating assembly are connected to one end of the measurement module, which is far away from the adapter connection.
6. The measurement-while-drilling instrument of claim 1, wherein the end of the measurement nipple connected to the measurement module is provided with a cylindrical cavity having a diameter larger than the drilling fluid flow passage, thereby forming a shoulder at the bottom of the cylindrical cavity, the adapter fitting being mounted on the shoulder.
7. A measurement-while-drilling system, comprising:
a drill stem; and
the ground equipment is used for the ground equipment,
characterized in that a measurement-while-drilling instrument according to any one of claims 1 to 6 is mounted on the drill rod.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711123192.5A CN109798105B (en) | 2017-11-14 | 2017-11-14 | Measurement-while-drilling instrument and measurement-while-drilling system |
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| CN201711123192.5A CN109798105B (en) | 2017-11-14 | 2017-11-14 | Measurement-while-drilling instrument and measurement-while-drilling system |
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| CN109798105A CN109798105A (en) | 2019-05-24 |
| CN109798105B true CN109798105B (en) | 2022-02-01 |
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| CN112525440A (en) * | 2020-11-25 | 2021-03-19 | 贝兹维仪器(苏州)有限公司 | Simulation test system and test method for slurry pulser system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201486545U (en) * | 2009-09-02 | 2010-05-26 | 中国石油天然气集团公司 | Underground vibration measuring instrument |
| CN203321513U (en) * | 2013-06-05 | 2013-12-04 | 中国石油天然气集团公司 | Insulation connecting structure between electromagnetic wave measurement while drilling downhole instruments |
| CN203441474U (en) * | 2013-08-30 | 2014-02-19 | 中国石油集团西部钻探工程有限公司 | Inclination measuring tray |
| CN103899301A (en) * | 2012-12-28 | 2014-07-02 | 中国电子科技集团公司第二十二研究所 | Wireless measurement while drilling system and method |
| CN104179496A (en) * | 2014-08-12 | 2014-12-03 | 中国海洋石油总公司 | Connecting piece of short section of logging while drilling instrument |
| CN204791510U (en) * | 2015-07-09 | 2015-11-18 | 中国海洋石油总公司 | Along with boring instrument conversion testing arrangement |
| CN105804719A (en) * | 2016-04-07 | 2016-07-27 | 中国海洋石油总公司 | Internal wiring structure of pup joint of well logging instrument during drilling |
| CN107339098A (en) * | 2017-07-11 | 2017-11-10 | 北京泰瑞博创科技有限公司 | A kind of measurement while drilling drilling tool and its measurement pipe nipple |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9022144B2 (en) * | 2009-04-23 | 2015-05-05 | Schlumberger Technology Corporation | Drill bit assembly having electrically isolated gap joint for measurement of reservoir properties |
| CN102493768B (en) * | 2011-12-02 | 2014-05-28 | 东北石油大学 | High-frequency pulsed jet flow resonance well drilling device and well drilling method thereof |
| CN203334971U (en) * | 2013-06-09 | 2013-12-11 | 中国石油化工股份有限公司 | Adapter substitute of logging instrument |
| WO2015161209A1 (en) * | 2014-04-17 | 2015-10-22 | Schlumberger Canada Limited | Automated sliding drilling |
| US10520639B2 (en) * | 2016-02-19 | 2019-12-31 | China Petroleum & Chemical Corporation | System for geosteering and formation evaluation utilizing near-bit sensors |
| CN105781534B (en) * | 2016-04-07 | 2019-05-17 | 中国海洋石油集团有限公司 | The connection structure and connector for logging while drilling that data stick, drill collar and internal pipe nipple are formed |
-
2017
- 2017-11-14 CN CN201711123192.5A patent/CN109798105B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201486545U (en) * | 2009-09-02 | 2010-05-26 | 中国石油天然气集团公司 | Underground vibration measuring instrument |
| CN103899301A (en) * | 2012-12-28 | 2014-07-02 | 中国电子科技集团公司第二十二研究所 | Wireless measurement while drilling system and method |
| CN203321513U (en) * | 2013-06-05 | 2013-12-04 | 中国石油天然气集团公司 | Insulation connecting structure between electromagnetic wave measurement while drilling downhole instruments |
| CN203441474U (en) * | 2013-08-30 | 2014-02-19 | 中国石油集团西部钻探工程有限公司 | Inclination measuring tray |
| CN104179496A (en) * | 2014-08-12 | 2014-12-03 | 中国海洋石油总公司 | Connecting piece of short section of logging while drilling instrument |
| CN204791510U (en) * | 2015-07-09 | 2015-11-18 | 中国海洋石油总公司 | Along with boring instrument conversion testing arrangement |
| CN105804719A (en) * | 2016-04-07 | 2016-07-27 | 中国海洋石油总公司 | Internal wiring structure of pup joint of well logging instrument during drilling |
| CN107339098A (en) * | 2017-07-11 | 2017-11-10 | 北京泰瑞博创科技有限公司 | A kind of measurement while drilling drilling tool and its measurement pipe nipple |
Non-Patent Citations (2)
| Title |
|---|
| Experimental and numerical study on casing wear in a directional well under in situ stress for oil and gas drilling;Hao Yu;《Journal of Natural Gas Science and Engineering》;20160917;986-996 * |
| 基于应力波传输的随钻测量系统研究;李晓军;《河南科学》;20140731;第32卷(第7期);1247-1250 * |
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| CN109798105A (en) | 2019-05-24 |
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