CN219281725U - Near-bit measurement while drilling device - Google Patents
Near-bit measurement while drilling device Download PDFInfo
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- CN219281725U CN219281725U CN202222732262.XU CN202222732262U CN219281725U CN 219281725 U CN219281725 U CN 219281725U CN 202222732262 U CN202222732262 U CN 202222732262U CN 219281725 U CN219281725 U CN 219281725U
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- drill collar
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- bit
- measurement
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The utility model discloses a near-bit measurement while drilling device. The device comprises a screw rod, a drill bit, a transmitting drill collar and a receiving drill collar, wherein one end of the transmitting drill rod is connected with one end of the screw rod, the other end of the transmitting drill collar is connected with the drill bit, a first coil is arranged in an inner groove of the transmitting drill collar so as to realize measurement and transmission of electromagnetic wireless signals, and a first laser abrasion-resistant belt is arranged on the outer wall of the transmitting drill collar; one end of the receiving drill bit is connected with the other end of the screw rod, a second coil is arranged in the receiving drill collar to receive and analyze electromagnetic wireless signals, and a second laser abrasion-resistant belt is arranged on the outer wall of the receiving drill collar. The structure can ensure that the coil in the drill collar is stably protected, thereby ensuring the stability and the continuity of wireless transmission and meeting the measurement requirement.
Description
Technical Field
The utility model belongs to the technical field of measurement while drilling, and particularly relates to a near-bit measurement while drilling device.
Background
In the development of petroleum and natural gas, directional wells and horizontal wells are increasing. Logging while drilling instruments have been valued and developed rapidly to ensure that the wellbore progresses in the hydrocarbon reservoir. Because of the particularities of logging while drilling, downhole tools typically employ wireless means for signal transmission. The antenna is used as a key component for transmitting and receiving electromagnetic wave signals, and important protection is required in severe underground working conditions.
In the prior art, a protective cover is generally arranged on the outer side of the drill collar, which is used for arranging an antenna, and the protective cover is connected to the drill collar in a screw connection mode, so that the connection strength is limited. Because the underground working environment is high temperature, high pressure and high corrosiveness and is accompanied with long-time strong vibration, not only is the screw easy to loose, but also the protection cover is easy to wear and corrode, and the wireless transmission module also can generate temperature drift due to the high temperature problem, so that the interruption of wireless transmission is caused, the stability and the continuity of the wireless transmission cannot be ensured, and the protection of the whole antenna housing to the antenna can be invalid, on the other hand, the metal protection cover also can influence the antenna emission efficiency, and the measurement requirement cannot be met.
Aiming at the problems, the utility model provides the near-bit measurement while drilling device, and the non-magnetic wear-resistant belt is directly arranged on the drill collar provided with the antenna for external measurement, so that the protection cover is replaced, the coil in the drill collar is stably protected, the stability and the continuity of wireless transmission are ensured, and the measurement requirement is met.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art.
In view of the foregoing, the present utility model provides a near-bit measurement while drilling device. One end of the transmitting drill rod is connected with one end of the screw rod, the other end of the transmitting drill collar is connected with the drill bit, a first coil is arranged in an inner groove of the transmitting drill collar to realize measurement and transmission of electromagnetic wireless signals, and a first laser abrasion-resistant belt is arranged on the outer wall of the transmitting drill collar; one end of the receiving drill bit is connected with the other end of the screw rod, a second coil is arranged in the receiving drill collar to receive and analyze electromagnetic wireless signals, and a second laser abrasion-resistant belt is arranged on the outer wall of the receiving drill collar. The structure can ensure that the coil in the drill collar is stably protected, thereby ensuring the stability and the continuity of wireless transmission and meeting the measurement requirement.
According to the embodiment of the utility model, the wear-resistant belts are respectively arranged on the outer wall surfaces of the transmitting drill collar and the receiving drill collar corresponding to the coils, and have the performances of high temperature resistance, high strength, wear resistance and corrosion resistance, so that the coils in the drill collar can be stably protected, the stability and the continuity of wireless transmission are ensured, and the measurement requirement is met.
Embodiments according to the present utility model may also have the following additional technical features:
according to one embodiment of the utility model, the transmitting drill collar and the receiving drill collar are both nonmagnetic stainless steel pieces, and the first laser cladding wear-resistant belt and the second laser cladding wear-resistant belt are both nonmagnetic cladding layers formed by cladding nonmagnetic alloy powder with laser.
According to one embodiment of the utility model, the nonmagnetic cladding layer is a nickel-based alloy cladding layer comprising tungsten carbide.
According to one embodiment of the utility model, the nonmagnetic cladding layer comprises a first cladding layer and a second cladding layer, the first cladding layer is arranged on the surface of the drill collar, the first cladding layer contains 30% of tungsten carbide by mass, the second cladding layer is arranged on the surface of the first cladding layer, and the first cladding layer contains 60% of tungsten carbide by mass.
According to one embodiment of the utility model, the outer walls of the transmitting drill collar and the receiving drill collar, which correspond to the coils, are respectively provided with at least one annular groove, and a non-magnetic wear-resistant layer is arranged in each annular groove, wherein the thickness of the non-magnetic wear-resistant layer is larger than the depth of each annular groove.
According to one embodiment of the utility model, the outer walls of the transmitting drill collar and the receiving drill collar, which correspond to the coils, are respectively provided with two annular grooves at intervals, and the outer wall of the drill collar between the two annular grooves at intervals is provided with a copper alloy layer.
According to one embodiment of the utility model, the outer walls of the transmitting drill collar and the receiving drill collar, which correspond to the coils, are respectively provided with a spiral groove, the nonmagnetic wear-resistant layer is arranged in the spiral grooves, and the thickness of the nonmagnetic wear-resistant layer is larger than the depth of the spiral grooves.
According to one embodiment of the utility model, the outer wall of the drill collar between the spiral grooves is provided with a copper alloy layer.
According to one embodiment of the present utility model, the thickness of the first cladding layer is 0.6mm to 0.8mm, and the thickness of the second cladding layer is 1mm to 1.5mm.
According to one embodiment of the utility model, the annular groove and the spiral groove each have a width of 120mm to 150mm.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of a near-bit measurement while drilling apparatus according to an embodiment of the utility model;
FIG. 2 is a partial front view of a near-bit measurement while drilling apparatus according to an embodiment of the utility model;
FIG. 3 is a cross-sectional view of the area A of FIG. 2;
FIG. 4 is a partial cross-sectional view of a further embodiment according to the utility model;
FIG. 5 is a partial cross-sectional view of yet another embodiment of the present utility model;
FIG. 6 is a partial cross-sectional view according to another embodiment of the present utility model;
reference numerals:
near bit measurement while drilling device 100;
a screw 10;
a drill bit 20;
a transmit drill collar 30; a first laser wear strip 31; the first cladding layer 311; a second cladding layer 312; copper alloy layer 32;
receiving a drill collar 40; a second laser wear strip 41.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring now to fig. 1-6, a near-bit measurement while drilling apparatus 100 according to an embodiment of the present utility model is described in detail with reference to the accompanying drawings, wherein a combination of a screw 10, a drill bit 20, a transmitting drill collar 30, and a receiving drill collar 40 is used.
Specifically, as shown in fig. 1 and 2, one end of a transmitting drill rod is connected with one end of a screw rod 10, the other end of a transmitting drill collar 30 is connected with a drill bit 20, a first coil is arranged in an inner groove of the transmitting drill collar 30 to realize measurement and transmission and emission of electromagnetic wireless signals, and a first laser abrasion-resistant belt 31 is arranged on the outer wall of the transmitting drill collar 30; one end of the receiving drill bit 20 is connected with the other end of the screw rod 10, a second coil is arranged in the receiving drill collar 40 to receive and analyze electromagnetic wireless signals, and a second laser abrasion-resistant belt 41 is arranged on the outer wall of the receiving drill collar 40.
In other words, one end of the transmitting drill collar 30 may be connected to one end of the screw 10, the other end of the transmitting drill collar 30 may be connected to the drill bit 20, an inner groove may be formed on the transmitting drill collar 30, a first coil may be disposed in the inner groove, measurement and transmission of electromagnetic wireless signals may be implemented, and a first laser abrasion-resistant belt 31 may be disposed on an outer wall of the transmitting drill collar 30; one end of the receiving drill bit 20 can be connected with the other end of the screw rod 10, a second coil can be arranged in the receiving drill collar 40, electromagnetic wireless signal receiving and analysis can be realized, and a second laser abrasion-resistant belt 41 can be arranged on the outer wall of the receiving drill collar 40.
Therefore, the near-bit 20 measurement while drilling device 100 according to the embodiment of the utility model adopts a structure that wear-resistant belts are respectively arranged on the outer wall surfaces of the transmitting drill collar 30 and the receiving drill collar 40 corresponding to the coils, and the wear-resistant belts have the performances of high temperature resistance, high strength, wear resistance and corrosion resistance, so that the coils in the drill collar can be stably protected, the stability and the continuity of wireless transmission are ensured, and the measurement requirement is met.
According to one embodiment of the utility model, the transmitting drill collar 30 and the receiving drill collar 40 may be non-magnetic stainless steel pieces, the first laser cladding wear-resistant belt and the second laser cladding wear-resistant belt may be non-magnetic cladding layers formed by laser cladding non-magnetic alloy powder, and the non-magnetic materials are adopted to improve accuracy and stability of wireless signals and avoid interference to influence measurement data.
Preferably, the nonmagnetic cladding layer can be a nickel-based alloy cladding layer containing tungsten carbide, and the cladding layer has higher strength, hardness, high temperature resistance, abrasion resistance and corrosion resistance and can meet the severe downhole operation conditions of the product.
Further, as shown in fig. 3, the nonmagnetic cladding layer may include a first cladding layer 311 and a second cladding layer 312, the first cladding layer 311 may be disposed on the surface of the drill collar, the first cladding layer 311 may contain 30% by mass of tungsten carbide, the second cladding layer 312 may be disposed on the surface of the first cladding layer 311, the first cladding layer 311 may contain 60% by mass of tungsten carbide, and two times of gradient materials containing tungsten carbide particles with different mass fractions may be used, so that not only the bonding strength between the cladding layer and the surface of the drill collar may be improved, but also the abrasion-resistant layer may be prevented from falling off, the strength, hardness and other physical and chemical properties of the abrasion-resistant layer may be improved to a greater extent, and the service life of the product may be prolonged.
In some embodiments of the present utility model, as shown in FIG. 4, at least one annular groove may be provided on the outer walls of the transmitting drill collar 30 and the receiving drill collar 40 corresponding to the coils, a nonmagnetic wear layer may be provided in each annular groove to prevent the wear layer from falling off, the nonmagnetic wear layer may have a thickness greater than the depth of the annular groove, and friction between the mud and rock layers and the outer wall of the drill collar may be reduced during drilling.
Alternatively, as shown in fig. 5, two annular grooves with intervals are formed on the outer walls of the transmitting drill collar 30 and the receiving drill collar 40 corresponding to the coils, and a copper alloy layer 32 is arranged on the outer wall of the drill collar between the two annular grooves with intervals, so that the transmitting efficiency of the antenna can be improved, and the measurement requirement can be met.
Preferably, as shown in fig. 6, the outer walls of the transmitting drill collar 30 and the receiving drill collar 40 corresponding to the coils may be provided with spiral grooves, and the nonmagnetic wear layer may be disposed in the spiral grooves, and the thickness of the nonmagnetic wear layer may be greater than the depth of the spiral grooves. The spiral wear-resistant layer structure is arranged along the outer wall of the drill collar, so that the stress direction of the wear-resistant layer is consistent with the downward spiral movement direction during the operation of the drill collar, the surface abrasion of the wear-resistant layer can be reduced, and the service life of a product is prolonged.
Further, as shown in fig. 6, the copper alloy layer 32 is arranged on the outer wall of the drill collar between the spiral grooves, so that the antenna emission efficiency can be improved, and the measurement requirement can be met.
According to one embodiment of the utility model, the thickness of the first cladding layer 311 can be 0.6 mm-0.8 mm, so that the bonding strength between the first cladding layer 311 and the surface of the drill collar is improved, the first cladding layer is prevented from falling off, the thickness of the second cladding layer 312 can be 1 mm-1.5 mm, the thickness of the total wear-resistant layer is increased, and the wear-resistant life of the wear-resistant layer is improved.
Optionally, the widths of the annular groove and the spiral groove can be 120-150 mm, so that the bonding strength of the wear-resistant layer and the surface of the drill collar can be improved, and the wear-resistant layer can meet the use requirement of a product.
In summary, according to the method of the embodiment of the utility model, through the combined structure of the screw 10, the drill bit 20, the transmitting drill collar 30 and the receiving drill collar 40, the structure of the wear-resistant belt is respectively arranged on the outer wall surfaces of the transmitting drill collar 30 and the receiving drill collar 40 corresponding to the coils, and the wear-resistant belt has the performances of high temperature resistance, high strength, wear resistance and corrosion resistance, so that the coils in the drill collar can be stably protected, the stability and the continuity of wireless transmission are ensured, and the measurement requirement is met.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. A near bit measurement while drilling device, comprising:
a screw;
a drill bit;
the device comprises a transmitting drill collar, wherein one end of the transmitting drill collar is connected with one end of a screw rod, the other end of the transmitting drill collar is connected with a drill bit, a first coil is arranged in an inner groove of the transmitting drill collar to realize measurement and transmission of electromagnetic wireless signals, and a first laser abrasion-resistant belt is arranged on the outer wall of the transmitting drill collar;
the device comprises a receiving drill collar, wherein one end of the receiving drill collar is connected with the other end of the screw rod, a second coil is arranged in the receiving drill collar to receive and analyze electromagnetic wireless signals, and a second laser abrasion-resistant belt is arranged on the outer wall of the receiving drill collar.
2. The near-bit measurement while drilling device of claim 1, wherein the transmitting drill collar and the receiving drill collar are both non-magnetic stainless steel pieces, and the first laser wear resistant belt and the second laser wear resistant belt are both non-magnetic cladding layers formed by laser cladding non-magnetic alloy powder.
3. The near-bit measurement while drilling device of claim 2, wherein the outer walls of the transmitting drill collar and the receiving drill collar corresponding to the coil are provided with at least one annular groove, the nonmagnetic cladding layer is arranged in each annular groove, and the nonmagnetic cladding layer is thicker than the annular grooves.
4. The near-bit measurement while drilling device of claim 3, wherein the outer walls of the transmitting drill collar and the receiving drill collar corresponding to the coil are respectively provided with two spaced annular grooves, and a copper alloy layer is arranged on the outer wall of the drill collar between the two spaced annular grooves.
5. The near-bit measurement while drilling device of claim 2, wherein the outer walls of the transmitting drill collar and the receiving drill collar corresponding to the coil are provided with spiral grooves, the nonmagnetic cladding layer is arranged in the spiral grooves, and the nonmagnetic cladding layer is thicker than the spiral grooves.
6. The near bit measurement while drilling device of claim 5, wherein the outer wall of the drill collar between the helical grooves is provided with a copper alloy layer.
7. The near bit measurement while drilling device of any one of claims 3-6, wherein the first laser wear strip has a thickness of 0.6mm to 0.8mm and the second laser wear strip has a thickness of 1mm to 1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222732262.XU CN219281725U (en) | 2022-10-18 | 2022-10-18 | Near-bit measurement while drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222732262.XU CN219281725U (en) | 2022-10-18 | 2022-10-18 | Near-bit measurement while drilling device |
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| Publication Number | Publication Date |
|---|---|
| CN219281725U true CN219281725U (en) | 2023-06-30 |
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ID=86927512
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222732262.XU Active CN219281725U (en) | 2022-10-18 | 2022-10-18 | Near-bit measurement while drilling device |
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| CN (1) | CN219281725U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117265526A (en) * | 2023-11-18 | 2023-12-22 | 西南石油大学 | Laser repairing equipment and process for repairing non-magnetic drill collar by adopting stainless steel powder |
-
2022
- 2022-10-18 CN CN202222732262.XU patent/CN219281725U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117265526A (en) * | 2023-11-18 | 2023-12-22 | 西南石油大学 | Laser repairing equipment and process for repairing non-magnetic drill collar by adopting stainless steel powder |
| CN117265526B (en) * | 2023-11-18 | 2024-01-26 | 西南石油大学 | Laser repairing equipment and process for repairing non-magnetic drill collar by adopting stainless steel powder |
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