CN214997611U

CN214997611U - Detachable antenna magnetic core safety cover and drilling device applying same

Info

Publication number: CN214997611U
Application number: CN202121462914.1U
Authority: CN
Inventors: 秦才会; 曹云风; 季新标; 朱玉宁; 李国玉; 徐鲲; 杨喜
Original assignee: China Oilfield Services Ltd; China National Offshore Oil Corp CNOOC
Current assignee: China Oilfield Services Ltd; China National Offshore Oil Corp CNOOC
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-12-03
Anticipated expiration: 2031-06-29

Abstract

The utility model relates to a detachable antenna magnetic core safety cover and use its along with boring device, the safety cover includes the safety cover body and fixes a plurality of coupling assembling on the safety cover body, a plurality of coupling assembling sets up on the relative both sides of the edge drill collar body axial of safety cover body, coupling assembling is used for being connected the cooperation with the drill collar body, wherein, coupling assembling's one end can liftoff form spacing connection with the drill collar body, coupling assembling's other end detachably with the safety cover body forms fixed connection. The utility model discloses a mechanical strength of drill collar not only can be guaranteed to detachable antenna magnetic core safety cover, still the fixed of secondary protection antenna magnetic core safety cover to the dismantlement maintenance of antenna magnetic core safety cover of can being convenient for.

Description

Detachable antenna magnetic core safety cover and drilling device applying same

Technical Field

The utility model belongs to the technical field of the oil field well drilling, concretely relates to detachable antenna magnetic core safety cover and use its along with boring device.

Background

The logging-while-drilling instrument has a severe working environment, requires high mechanical strength, is scour-resistant and corrosion-resistant, and simultaneously meets the logging-while-drilling requirement. The electromagnetic wave resistivity logging instrument of the while-drilling edge-exploring tool mainly comprises a drill collar assembly, a framework assembly, a flow channel converter and the like. Wherein, a four-transmitting four-receiving antenna sensor is manufactured in the drill collar assembly, wherein, a mounting groove of the antenna sensor is positioned on the drill collar and protected by an antenna magnetic core protection device.

The antenna magnetic core protective cover device of the existing large-diameter (675/800) edge-probing while drilling tool is fixed by radial bolts on a drill collar, and radial screw holes on the drill collar reduce the mechanical strength of the drill collar. Meanwhile, the outer diameter of a drill collar of the 475 while-drilling edge-probing tool is only 127mm, the radial space is very limited, and if the antenna magnetic core protective cover device is fixed by radial bolts, the mechanical strength of the drill collar can be greatly reduced, and the service life of the while-drilling edge-probing tool is shortened.

SUMMERY OF THE UTILITY MODEL

In order to solve the whole or partial problem, the utility model aims to provide a detachable antenna magnetic core safety cover, its mechanical strength that not only can guarantee the drill collar, still the fixed of secondary protection antenna magnetic core safety cover to the dismantlement maintenance of antenna magnetic core safety cover of can being convenient for.

According to the utility model discloses a first aspect provides a detachable antenna magnetic core safety cover. The detachable antenna magnetic core protective cover comprises a protective cover body and a plurality of connecting assemblies fixed on the protective cover body, wherein the connecting assemblies are arranged on two opposite sides of the protective cover body along the axial direction of the drill collar body and are used for being connected and matched with the drill collar body, one end of each connecting assembly can be detachably connected with the drill collar body in a limiting mode, and the other end of each connecting assembly is detachably connected with the protective cover body in a fixed mode.

Furthermore, the connecting assemblies are symmetrically arranged on two sides of the protective cover body along the axis of the drill collar body, and the connecting assemblies on the same side are uniformly distributed along the circumferential direction of the drill collar body.

Further, the protective cover body includes: two half side cover bodies forming a buckling; and a plurality of second bolts used for being detachably and fixedly connected with the two half side cover bodies, and the plurality of second bolts are fixedly connected with the two half side cover bodies along the tangential direction of the peripheral wall of the half side cover bodies.

Furthermore, the connecting assembly is located at the joint of the two half side cover bodies and is fixedly connected with the two half side cover bodies respectively.

According to the utility model discloses a second aspect provides a along with boring device. The device while drilling comprises a drill collar body and the detachable antenna magnetic core protection cover fixed on the drill collar body, wherein the antenna magnetic core protection cover can be detachably connected with the drill collar body in a limiting mode through the connecting component.

Furthermore, a plurality of grooves are formed in the peripheral wall, located on two sides of the protective cover body, of the drill collar body at intervals, notches of the grooves on the two sides are opposite, the connecting assembly comprises a fixing bolt and a plurality of first bolts, the fixing bolt is parallel to the axis of the drill collar body, the first bolts are used for fixedly connecting the fixing bolt with the protective cover body, and the fixing bolt is inserted in the grooves.

Further, the fixing latch is constructed in a plate-shaped structure.

Furthermore, the device while drilling further comprises a wear-resistant belt and a fixed lantern ring, wherein the wear-resistant belt and the fixed lantern ring are sleeved on the drill collar body and are located on two axial sides of the protective cover body, one end of the fixed lantern ring is fixedly connected between the wear-resistant belt and the drill collar body, a gap is formed between a partial area of the other end of the fixed lantern ring and the drill collar body, and the gap is a groove.

Further, the wear-resistant belt and the fixed lantern ring are fixedly connected with the drill collar body through a laser cladding technology.

Further, be formed with the butt joint platform face on the internal face of safety cover body, the second bolt passes through the butt joint platform face and connects two half side cover bodies, and the position that lies in the butt joint platform face on the drill collar body forms the limiting plane, and the butt joint platform face cooperates with the laminating of limiting plane to the rotation of restriction antenna magnetic core safety cover.

According to the technical scheme, when the detachable antenna magnetic core protective cover is used, on one hand, the antenna magnetic core protective cover is more convenient to mount and dismount, and the problem that the antenna magnetic core protective cover rotates can be effectively avoided, so that the fixing stability of the antenna magnetic core protective cover is better; on the other hand, the connection strength of the half-side cover bodies of the two buckles is further improved through the fixing bolt, so that the half-side cover bodies of the two buckles can form a second-stage fixed connection through the fixing of the fixing bolt while forming a first-stage fixed connection through the second screw, and the overall structural strength of the antenna magnetic core protection cover can be effectively guaranteed through the two-stage fixed connection.

Drawings

Fig. 1 is a schematic structural view of a detachable antenna magnetic core protection cover according to an embodiment of the present invention;

FIG. 2 is a schematic top view of the removable antenna core protective cover shown in FIG. 1;

fig. 3 is a schematic structural diagram of the device while drilling according to an embodiment of the present invention;

FIG. 4 is a side view of the while drilling apparatus shown in FIG. 3;

FIG. 5 is a view along A-A of the while drilling apparatus shown in FIG. 3;

FIG. 6 is a schematic structural diagram of the while-drilling device shown in FIG. 3 after an antenna magnetic core protective cover is removed;

FIG. 7 is a view of the while drilling apparatus of FIG. 6 taken in the direction B-B;

FIG. 8 is a schematic view of the while drilling device shown in FIG. 6 with the retaining pins removed;

FIG. 9 is a view along the direction C-C of the while drilling apparatus shown in FIG. 8;

FIG. 10 is a view in the direction D-D of the while drilling apparatus shown in FIG. 8.

Detailed Description

For better understanding the utility model discloses a purpose, structure and function, below combine the figure, right the utility model discloses a further detailed description is done to detachable antenna magnetic core safety cover along with boring device.

Fig. 1 and 2 show a structure of a detachable antenna core protection cover 100 according to an embodiment of the present invention. As shown in fig. 1 and fig. 2, and with reference to fig. 3 to fig. 5, the detachable antenna core protection cover 100 includes a protection cover body 2 and a plurality of connection assemblies 3 fixed on the protection cover body 2, the plurality of connection assemblies 3 are disposed on two opposite sides of the protection cover body 2 along the axial direction of the drill collar body 1, and the connection assemblies 3 are used for connecting and matching with the drill collar body 1. Wherein, the one end of coupling assembling 3 can form spacing connection with drill collar body 1 disengagably, and the other end detachably of coupling assembling 3 forms fixed connection with safety cover body 2.

The utility model discloses detachable antenna magnetic core safety cover 100 is when using, and it is shown to combine fig. 3 to fig. 5, detachable antenna magnetic core safety cover 100 includes two kinds of user state: one is to detach the connection member 3 and the shield body 2 first so that they are separated into separate parts when the detachable antenna-core shield 100 is mounted. And then fixing the connecting component 3 and the drill collar body 1, wherein the connecting component 3 and the drill collar body 1 can be directly fixed through bolts or fixed through splicing and the like. And then the connecting assembly 3 and the protective cover body 2 are fixed, thereby completing the installation of the detachable antenna magnetic core protective cover 100. The other is that when the detachable antenna core protection cover 100 is detached, only the protection cover body 2 needs to be separated from the connection component 3.

Through the setting, the utility model discloses detachable antenna magnetic core safety cover 100's installation and dismantlement are all more convenient, and coupling assembling 3 forms spacing connection with drill collar body 1 and has still effectively avoided detachable antenna magnetic core safety cover 100 to produce the pivoted problem to make the fixed stability of detachable antenna magnetic core safety cover 100 better.

Preferably, as shown in fig. 1 and fig. 2, several connection assemblies 3 may be symmetrically disposed on two sides of the protective housing body 2 along the axis of the drill collar body 1, and several connection assemblies 3 on the same side may be uniformly distributed along the circumference of the drill collar body 1. Through this setting, can further improve intensity and stability that detachable antenna magnetic core safety cover 100 is connected with drill collar body 1. Further preferably, the detachable antenna core protection cover 100 may include four connection assemblies 3, and the four connection assemblies 3 may be symmetrically disposed on two sides of the protection cover body 2 in a two-by-two set manner.

Preferably, as shown in fig. 1 and 2 in combination, the protective cover body 2 may include: two half side covers 24 forming a snap fit; and a plurality of second bolts 25 (as shown in fig. 4) for detachably and fixedly connecting the two half side covers 24, wherein the plurality of second bolts 25 are fixedly connected with the two half side covers 25 along the tangential direction of the outer peripheral wall of the half side cover 24. Preferably, the second bolt 25 is M5 size bolt.

Preferably, as shown in fig. 1 and 2, the connecting assembly 3 may be located at the connection position of the two half-side shells 24, and is fixedly connected with the two half-side shells 24 respectively. Through this setting, can further improve the joint strength of the half side cover body 24 of two locks through fixed connection subassembly 3 for when the two of the half side cover body 24 of two locks formed first order fixed connection, can also form second level fixed connection through coupling assembling 3's fixed, two-stage fixed connection can guarantee detachable antenna magnetic core safety cover 100 overall structure intensity effectively.

Fig. 3 to 5 show the structure of the device 200 while drilling according to an embodiment of the present invention. As shown in fig. 3 to fig. 5, the while-drilling device 200 includes a drill collar body 1 and the detachable antenna core protection cover 100 fixed on the drill collar body 1, wherein the antenna core protection cover 100 is detachably connected to the drill collar body 1 in a limiting manner through the connection component 3.

In a preferred embodiment shown in fig. 3 and 6 to 10, in combination with fig. 8 to 10, grooves 11 are formed at intervals on the outer circumferential wall of the drill collar body 1 on both sides of the protective cover body 2, the notches of the grooves 11 on both sides are opposite, the connection assembly 3 may include a fixing pin 31 arranged parallel to the axis of the drill collar body 1 and a plurality of first bolts 32 for fixedly connecting the fixing pin 31 and the protective cover body 2, and the fixing pin 31 is inserted into the grooves 11.

When the connecting assembly 3 of the application is used, the first bolt 32 can connect the fixing bolt 31 and the protective cover body 2 along the radial direction of the drill collar body 1, and the first bolt 32 passes through the fixing bolt 31 and then forms threaded connection with a threaded hole formed in the protective cover body 2, so that the fixing bolt 31 is finally fixed. Wherein, the end of the protection cover body 2 may be formed with a slot 21 (shown in fig. 5) for placing the fixing plug 31. The top wall 22 of the socket 21 may be formed with a hole for the first bolt 32 to pass through, and the bottom wall 23 of the socket 21 may be formed with a screw hole corresponding to the hole. The groove 11 of the present application forms a plug-fit with the fixing plug 31, and therefore, the shape of the groove 11 should match the shape of the fixing plug 31. Preferably, the first bolt 32 is M4 size bolt.

In a preferred embodiment, the fixing plug 31 may be in the form of a plug rod or a plug board, or in other forms, as long as the shape of the fixing plug 31 matches with that of the groove 11, so that the two can form a plug limit connection. In the preferred embodiment shown in fig. 1 and 2, the fixing latch 31 is constructed in a plate-like structure.

Preferably, as shown in fig. 9 and 10, the while drilling device 200 may further include a wear-resistant belt 12 and a fixed collar 13, which are sleeved on the drill collar body 1 and located at two axial sides of the protective cover body 2, one end of the fixed collar 13 is fixedly connected between the wear-resistant belt 12 and the drill collar body 1, and a gap is formed between a partial region of the other end of the fixed collar 13 and the drill collar body 1, and the gap is configured as a groove 11.

In a preferred embodiment, the wear strip 12 and the retaining collar 13 may be fixedly attached to the collar body 1 by laser cladding techniques. The laser cladding technology mentioned in the application refers to sleeving a wear-resistant belt 12 and a fixed lantern ring 13 on the surface of a drill collar body 1, melting the wear-resistant belt 12, the fixed lantern ring 13 and the surface of the drill collar body 1 simultaneously through laser irradiation, and forming an integrated structure after rapid solidification.

Preferably, as shown in fig. 1, 2 and 6, a butt-joint platform surface 26 is formed on an inner wall surface of the protective cover body 2, the second bolt 25 is connected to the two half-side cover bodies 24 through the butt-joint platform surface 26, a limiting plane 14 is formed on the drill collar body 1 at the position of the butt-joint platform surface 26, and the butt-joint platform surface 26 is in fit with the limiting plane 14 to limit the rotation of the antenna-core protective cover 100.

As shown in fig. 1 and 2, the butt-joint platform surface 26 formed on the inner wall surface of the protection cover body 2 mentioned in the present application can be understood that the two half-side covers 24 are each configured to be approximately U-shaped, and the openings of the U-shapes are butted to constitute the protection cover body 2. The docking platform surface 26 may be understood as the left and right planar surfaces of the U-shape. A second bolt 25 connects the two half shells 24 via a docking platform face 26. Through this setting, butt joint platform face 26 and the 14 laminating cooperations of spacing plane, make the utility model discloses detachable antenna magnetic core safety cover 100 is when long-time use, and still accessible spacing plane prevents antenna magnetic core safety cover 100 to produce and rotate to what can be better protects the antenna magnetic core, in order to play measurement and the communication of effectively avoiding influencing the antenna magnetic core, cause the emergence of the damage scheduling problem of antenna magnetic core and protection casing.

Preferably, a plurality of strip-shaped grooves for the antenna to pass through are formed on the protection cover body 2 at intervals.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

In the description of the present application, it is to be understood that the terms "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", etc. 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. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims

1. The utility model provides a detachable antenna core safety cover, its characterized in that includes the safety cover body and fixes a plurality of coupling assembling, a plurality of on the safety cover body coupling assembling sets up on the relative both sides of the edge drill collar body axial of safety cover body, coupling assembling is used for being connected the cooperation with the drill collar body, wherein, coupling assembling's one end can liftoff form spacing connection with the drill collar body, coupling assembling's other end detachably with the safety cover body forms fixed connection.

2. The detachable antenna core protection cover according to claim 1, wherein a plurality of the connection assemblies are symmetrically arranged on two sides of the protection cover body along an axis of the drill collar body, and a plurality of the connection assemblies on the same side are uniformly distributed along the circumference of the drill collar body.

3. The removable antenna core protective cover according to claim 1 or 2, wherein the protective cover body comprises: two half side cover bodies forming a buckling; and the second bolts are fixedly connected with the two half side cover bodies in a detachable mode.

4. The removable antenna core protection cover according to claim 3, wherein the connection assembly is located at a connection position of the two half-side covers and is fixedly connected with the two half-side covers respectively.

5. A device while drilling is characterized by comprising a drill collar body and the detachable antenna core protective cover according to claim 3 or 4 fixed on the drill collar body, wherein the antenna core protective cover can be detachably connected with the drill collar body in a limiting manner through the connecting component.

6. The device while drilling as recited in claim 5, wherein a plurality of grooves are formed at intervals on the outer peripheral wall of the drill collar body on two sides of the antenna magnetic core protection cover, notches of the grooves on two sides are opposite, the connection assembly comprises a fixing bolt arranged parallel to the axis of the drill collar body and a plurality of first bolts for fixedly connecting the fixing bolt and the antenna magnetic core protection cover, and the fixing bolt is inserted in the grooves.

7. The while drilling apparatus of claim 6 wherein the retaining latch is configured as a plate-like structure.

8. The device while drilling as recited in claim 6, further comprising a wear-resistant belt and a fixed collar sleeved on the drill collar body and located on two axial sides of the protective cover body, wherein one end of the fixed collar is fixedly connected between the wear-resistant belt and the drill collar body, and a gap is formed between a partial area of the other end of the fixed collar and the drill collar body, and the gap is configured as the groove.

9. The while drilling device as recited in claim 8, wherein the hardbanding and the retaining collar are fixedly attached to the collar body by laser cladding.

10. The device while drilling as recited in claim 7, wherein a docking platform surface is formed on an inner wall surface of the protective cover body, the second bolt is connected with the two half side cover bodies through the docking platform surface, a limiting plane is formed on the drill collar body at the docking platform surface, and the docking platform surface is in fit with the limiting plane to limit rotation of the antenna magnetic core protective cover.