CN214944016U - Diamond compact and drill bit - Google Patents

Abstract

The application relates to a diamond compact and drill bit, diamond compact, it includes: a substrate comprising a first substrate of a first shape and a second substrate of a second shape, the second shape having a cross-sectional perimeter that is greater than the cross-sectional perimeter of the first shape; the composite layer comprises a first composite layer in a first shape and a second composite layer in a second shape, the first composite layer and the second composite layer are respectively arranged on one end surfaces of the first substrate and the second substrate, and the side surface, away from the substrates, of the composite layer is provided with a cutting surface; the cutting structure comprises a cutting part, and the cutting part is arranged on the cutting surface in a convex shape. This application has the advantage that improves diamond compact piece shock resistance and improved and bore and dig efficiency.

Description

Diamond compact and drill bit

Technical Field

The application relates to the field of oil drilling, in particular to a diamond compact and a drill bit.

Background

At present, deep well operation in petroleum and natural gas drilling engineering is gradually increased, and drilling of encountered strata is more and more complex.

In the related technology, a combined type drill bit is adopted for cutting, a diamond composite layer is arranged on the end face of the drill bit, and the diamond is in contact with a soil layer, so that the drilling and digging of the stratum with different components are facilitated.

However, in order to adapt to installation, the main body of the existing drill bit is generally cylindrical, the drilling area of the existing drill bit is limited, the efficiency is low, and the diamond composite layer is uniformly arranged on the end face of the main body, so that the diamond composite layer is simultaneously contacted with the ground layer during drilling, and particularly the edge of the diamond composite layer is easily damaged due to overlarge impact force.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a diamond compact piece and drill bit to solve the weak and lower problem of boring efficiency of diamond compact piece shock resistance in the correlation technique.

In a first aspect, there is provided a diamond compact comprising: a substrate comprising a first substrate of a first shape and a second substrate of a second shape, the second shape having a cross-sectional perimeter that is greater than the cross-sectional perimeter of the first shape;

the composite layer comprises a first composite layer with the first shape and a second composite layer with the second shape, the first composite layer and the second composite layer are respectively arranged on one end surfaces of the first substrate and the second substrate, and the side surface, away from the substrate, of the composite layer is provided with a cutting surface;

the cutting structure comprises a cutting part, and the cutting part is arranged on the cutting surface in a convex shape.

In some embodiments, the cutting portion includes at least one ridge stripe extending from both ends thereof to edges of the first composite layer and the second composite layer, respectively, the ridge stripe dividing the cutting face into a plurality of portions.

In some embodiments, the cutting structure further comprises a connecting surface, the connecting surface connects adjacent ridge bars, and the connecting surface connects the ridge bars and the edge of the cutting surface.

In some embodiments, the connection surface is disposed obliquely, and the distance from the connection surface to the base body gradually increases in a direction approaching the ridge stripe.

In some embodiments, one end of each of the plurality of ridge bars is connected to each other, and the other end of each of the plurality of ridge bars extends to the edge of the cutting surface.

In some embodiments, the cutting structure further comprises a central face, and both ends of the ridge extend to the edges of the central face and the cutting face, respectively.

In some embodiments, the distance of the central plane from the substrate is greater than or equal to the distance of the ridge from the substrate.

In some embodiments, the plurality of ridge bars are disposed at an angle, and both ends of the plurality of ridge bars are located at the edge of the cutting surface.

In some embodiments, the cutting structure further comprises a connecting groove disposed between adjacent ridge bars.

In a second aspect, there is provided a drill bit comprising a diamond compact as described above.

The beneficial effect that technical scheme that this application provided brought includes:

the embodiment of the application provides a diamond compact piece and drill bit, because be provided with cutting structure on the cutting face of composite bed, in the work progress, cutting structure's cutting portion contacts and collides with the stratum earlier, has replaced the composite bed directly to contact with the stratum, and the cutting portion has increased the thickness of composite bed, consequently, has improved the shock resistance of composite bed, in the actual work progress, diamond compact piece is difficult for damaging, the diamond compact piece of being convenient for popularize and apply on a large scale. Meanwhile, the substrate and the composite layer are formed by combining two shapes, the first shape can adapt to the installation of the existing drilling machine, and the second shape prolongs the length of the cutting line of the composite layer, so that the perimeter of the cross section of the diamond composite sheet is improved, and the length of the cutting line of a soil layer is lengthened when the drilling operation is carried out, so that the drilling efficiency is accelerated.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural view of a diamond compact provided in an embodiment of the present application;

fig. 2 is a top view of the diamond compact of fig. 1;

fig. 3 is a schematic view of a diamond compact structure provided in other embodiments of the present application;

fig. 4 is a top view of the diamond compact of fig. 3;

FIG. 5 is a schematic sectional view taken along line A-A of FIG. 4;

fig. 6 is a schematic view of a diamond compact structure provided in accordance with another embodiment of the present application;

fig. 7 is a top view of the diamond compact of fig. 6;

FIG. 8 is a schematic cross-sectional view taken along line B-B of FIG. 7;

fig. 9 is a schematic view of a diamond compact structure provided in accordance with another embodiment of the present application;

fig. 10 is a top view of the diamond compact of fig. 9.

In the figure: 1. a substrate; 101. a first substrate; 102. a second substrate; 2. compounding layers; 201. a first composite layer; 202. a second composite layer; 203. a bonding surface; 3. a cutting structure; 301. ridge-shaped strips; 3011. a first ridge; 3012. a second ridge; 3013. a third ridge; 3014. a fourth ridge; 3015. a fifth ridge; 302. a connecting surface; 303. a central plane; 304. and connecting the grooves.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application provides a diamond compact, it can solve in the correlation technique diamond compact shock resistance weak, bore the problem of digging inefficiency.

A diamond compact, comprising: it includes:

a base 1 comprising a first base 101 of a first shape and a second base 102 of a second shape having a cross-sectional perimeter greater than the cross-sectional perimeter of the first shape;

a composite layer 2 including a first composite layer 201 of the first shape and a second composite layer 202 of the second shape, the first composite layer 201 and the second composite layer 202 being respectively disposed on one end surfaces of the first substrate 101 and the second substrate 102, and a cutting surface being disposed on a side surface of the composite layer 2 facing away from the substrate 1;

and the cutting structure 3 comprises a cutting part which is arranged on the cutting surface in a convex shape.

Referring to fig. 1 and 2, the diamond compact includes a substrate 1, a composite layer 2, and a cutting structure 3. The cross section shapes of the base body 1 and the composite layer 2 are consistent, and when the composite layer 2 is arranged on the end face of the base body 1, the composite layer 2 and the circumferential outer side face of the base body 1 are arranged in a flush mode. The cross-sectional shapes of the substrate 1 and the composite layer 2 comprise a circle, an ellipse or a combination of a plurality of curves. In the present embodiment, the substrate 1 includes a first substrate and a second substrate, and the composite layer 2 includes a first composite layer and a second composite layer. The cross-sectional shapes of the substrate 1 and the composite layer 2 are each defined by a combination of a plurality of curves, preferably including a first curve and a second curve, specifically, the first curve includes a circular arc-shaped curve, and the second curve includes an elliptic arc-shaped curve. The central angle of the arc-shaped curve is 180 degrees, namely the arc-shaped curve is a semicircular arc line, the elliptic arc curve is a semicircular elliptic arc line, the length of the minor axis of the semiellipse defined by the elliptic arc curve is consistent with the diameter of the semicircle defined by the arc-shaped curve, and half of the major axis of the semiellipse is larger than the diameter of the semicircle. In this embodiment, the diameter of the semi-arc line formed by the first curve is 15.875mm, the major axis of the semi-arc line formed by the second curve is 18mm, and the minor axis length is 15.875 mm.

As described above, the base 1 includes the first base 101 of the first shape and the second base 102 of the second shape which are integrally molded. The first shape includes a semi-cylindrical shape, the second shape includes a semi-elliptical shape, the first base 101 is disposed in a semi-cylindrical shape, and the second base 102 is disposed in a semi-elliptical cylindrical shape. The composite layer 2 includes a first composite layer 201 of a first shape and a second composite layer 202 of a second shape integrally formed, and thus the first composite layer 201 is disposed in a semi-cylindrical shape and the second composite layer 202 is disposed in a semi-elliptical cylindrical shape. The edge of the composite layer 2 is provided with a chamfer structure, and the chamfer structure is an oblique chamfer.

Referring to fig. 1 and 2, the composite layer 2 is fixed to the base 1 by welding or bonding. The end face of the substrate 1 for connecting with the composite layer 2 is arranged in a plane, a concave-convex surface or a groove surface, the first composite layer 201 is arranged on one end face of the first substrate 101, and the second composite layer 202 is arranged on one end face of the second substrate 102. In this embodiment, in order to facilitate the processing and the matching between the composite layer 2 and the substrate 1, it is preferable that the end surface of the substrate 1 in contact with the composite layer 2 is a plane. During construction, the composite layer 2 replaces the substrate 1 to contact with the stratum, so that the abrasive resistance of the diamond compact is improved conveniently. In the present embodiment, the composite layer 2 includes a polycrystalline diamond composite layer or a thermally stable polycrystalline diamond composite layer.

Referring to fig. 1 and 2, the end face of the composite layer 2 facing away from the substrate 1 is a cutting face on which the cutting structures 3 are arranged, while the cutting structures 3 are preferentially in contact with the formation. The cutting structure 3 comprises a cutting part which is integrally formed or welded and fixed on the cutting surface, the cutting part is arranged on the cutting surface in a convex shape, and the cutting part is firstly contacted with the stratum during construction.

According to the arrangement, the composite layer 2 and the substrate 1 are integrally formed by the semicylindrical part and the semicylindrical part, the substrate 1 and the composite layer 2 are combined to form the diamond composite sheet with the semicylindrical part and the semicylindrical part, and the diamond composite sheet has a half cylindrical surface, so that the diamond composite sheet can be well adapted to the existing cylindrical tooth cavity of the drill bit, is convenient to weld and has high adaptation degree. Because this diamond compact piece has oval cylinder, therefore diamond compact piece installs the back on the drill bit, for current cylinder tooth, it has more diamond area, has improved diamond compact piece's wear resistance. And the elliptical part of the diamond compact increases the cutting area of the stratum, and improves the drilling efficiency. Further, because the cutting structure 3 is arranged on the cutting face of the composite layer 2, in the construction process, the cutting part of the cutting structure 3 is firstly contacted and collided with the stratum, the direct contact with the stratum of the composite layer 2 is replaced, and the thickness of part of the position of the composite layer is increased, therefore, the impact resistance of the composite layer 2 is improved, and in the actual construction process, the diamond compact is not easy to damage, so that the diamond compact is convenient to popularize and apply on a large scale.

Alternatively, the cutting portion includes at least one ridge stripe 301, both ends of the ridge stripe 301 extending to the edges of the first composite layer 201 and the second composite layer 202, respectively, the ridge stripe 301 to divide the cutting face into a plurality of portions.

Optionally, the cutting structure 3 further comprises a connection surface 302, the connection surface 302 being adapted to connect adjacent ridge bars 301, and the connection surface 302 being adapted to connect the ridge bars 301 with the rim of the cutting surface.

Optionally, the connection surface 302 is disposed obliquely, and a distance from the connection surface 302 to the base 1 gradually increases in a direction approaching the ridge 301.

Referring to fig. 1 and 2, the cutting portion includes at least one ridge stripe 301, and the ridge stripe 301 is integrally formed on the cutting surface. The side of the ridge-shaped strip 301 departing from the composite layer 2 is one or more of an arc surface, a plane, a gradual change curved surface or a line. In this embodiment, ridge stripe 301 is equipped with one, and ridge stripe 301 deviates from the side of composite bed 2 and is the arcwall face setting, and ridge stripe 301 is rounding off with the junction of cutting the face. Both ends of the ridge stripe 301 extend to the edge of the cutting face. The longitudinal direction of the ridge stripe 301 coincides with the longitudinal direction of the cross section of the second composite layer 202, and the axial direction of the first composite layer 201 is perpendicular to the longitudinal direction of the ridge stripe 301. The ridge 301 divides the cutting surface into two parts having the same shape.

Referring to fig. 1 and 2, the cutting structure 3 further comprises a connecting surface 302, the connecting surface 302 being adapted to connect adjacent ridge-shaped strips 301, the connecting surface 302 being adapted to connect the ridge-shaped strips 301 with the edges of the cutting surface. When one ridge bar 301 is provided in this embodiment, the two connection surfaces 302 are used to connect the ridge bar 301 to the edge of the cutting surface, that is, the two connection surfaces 302 are provided, and the two connection surfaces 302 are respectively located on two opposite sides of the ridge bar 301. It will be appreciated that the side of the ridge 301 facing away from the composite layer 2 and the two connecting faces 302 now form a cutting face. The connection surface 302 is obliquely arranged, and the distance from the connection surface 302 to the substrate 1 is gradually increased along the direction that the distance from the connection surface 302 to the substrate 1 is close to the ridge-shaped strip 301. The included angle between the two connecting surfaces 302 ranges from 120 degrees to 160 degrees, and preferably, the included angle between the two connecting surfaces 302 is 150 degrees. It can be understood that connect the setting of face 302 for composite bed 2 is close to the position thickness of ridge strip 301 and is thicker, and the thickness of 2 border departments of composite bed is thinner, is convenient for stick out ridge strip 301, and improves the shock resistance of diamond compact piece, simultaneously, has improved composite bed 2's structural integrity, and composite bed 2 is difficult to damage when the construction.

Alternatively, one ends of the plurality of ridge bars 301 are connected to each other, and the other ends of the plurality of ridge bars 301 extend to the edge of the cutting face.

Referring to fig. 3 to 5, in other embodiments, a plurality of ridge bars 301 may be provided, wherein one ends of the plurality of ridge bars 301 are connected to each other, and the other ends of the plurality of ridge bars 301 extend to the edge of the cutting surface. The number of ridge bars 301 may be designed to be 2, 3, 4, 5 or other number of bars as desired. In this embodiment, preferably, three ridge-shaped bars 301 are provided, each ridge-shaped bar 301 includes a first ridge 3011, a second ridge 3012, and a third ridge 3013, and the axis of the first composite layer 201 passes through the connection point of the first ridge 3011, the second ridge 3012, and the third ridge 3013. The fixed side surfaces of the composite layer 2 and the substrate 1 are bonding surfaces 203, the length direction and the size of the projection of the first ridge 3011 on the bonding surface 203 are both consistent with the long axis direction and the size of the cross section of the second composite layer 202, so that the cutting surface of the first ridge 3011 on the second composite layer 202 is divided into two same parts, and the length of the projection of the second ridge 3012 and the projection of the third ridge 3013 on the bonding surface 203 are both consistent with the radius of the cross section of the first composite layer 201. The projections of the first, second and third ridges 3011, 3012 and 3013 on the bonding surface 203 are all arranged at an angle of 120 degrees.

Referring to fig. 3-5, the first, second and third ridges 3011, 3012 and 3013 may be disposed parallel to the bonding surface 203 or at an angle to the bonding surface 203, and in this embodiment, the included angle between the first, second and third ridges 3011, 3012 and 3013 and the bonding surface 203 is in the range of 3 degrees to 8 degrees, preferably 5 degrees. The side faces of the first raised ridge 3011, the second raised ridge 3012 and the third raised ridge 3013, which depart from the composite layer 2, are arranged in a curved surface manner, the curvature radius of the side faces, which depart from the composite layer 2, of the first raised ridge 3011, the second raised ridge 3012 and the third raised ridge 3013 is smaller near the edge of the cutting face, and the curvature radius of the side faces, which depart from the composite layer 2, of the first raised ridge 3011, the second raised ridge 3012 and the third raised ridge 3013 is larger near the mutual connection position.

Referring to fig. 3 to 5, in this embodiment, the connection surface 302 is used to connect the adjacent ridge-shaped bars 301 and the edges of the ridge-shaped bars 301 and the cutting surface, in this embodiment, the connection surface 302 is also inclined, and the distance from the connection surface 302 to the substrate 1 gradually decreases along a first direction, which is a direction away from the ridge-shaped bars 301. The angle between the attachment face 302 and the adhesive face 203 is in the range of 5-10 degrees, preferably 8 degrees.

Set up like this, through setting up many ridge strips 301, and interconnect between ridge strip 301, improved composite bed 2's wholeness, in the construction engineering, many ridge strips 301 are preferred to be contacted with the stratum, have improved composite bed 2's shock resistance.

Optionally, the cutting structure 3 further comprises a central face 303, and the two ends of the ridge 301 extend to the edges of the central face 303 and the cutting face, respectively.

Optionally, the distance of the central plane 303 from the substrate 1 is greater than or equal to the distance of the ridge 301 from the substrate 1.

Referring to fig. 6-8, in other embodiments, first ridge 3011, second ridge 3012, and third ridge 3013 may not be directly connected. The cutting structure 3 further comprises a central surface 303, the central surface 303 being arranged in a plane, an arc or a gradual curve, in this embodiment the central surface 303 is arranged in a plane, and preferably the central surface 303 is arranged in parallel with the bonding surface 203. The ends of first, second, and third ridges 3011, 3012, and 3013 extend to the edges of central face 303 and the cutting face, respectively. The highest height of the first, second, and third ridges 3011, 3012, and 3013 relative to the bonding surface 203 is less than or equal to the height of the central surface 303 relative to the bonding surface 203. The connecting surface 302 now serves to connect the central surface 303, the edge of the cutting surface and the ridge 301. Wherein, the junction of the central plane 303 and the connecting plane 302 is in circular arc transition.

Thus, in this embodiment, in the construction process, after the central surface 303 and the ridge-shaped bar 301 contact and collide with the ground layer, the loosened ground layer contacts the connecting surface 302 again, and the central surface 303 and the ridge-shaped bar 301 improve the impact resistance of the composite layer 2 while ensuring the wear resistance.

Optionally, the plurality of ridge bars 301 are disposed at an angle therebetween, and both ends of the plurality of ridge bars 301 are located at the edge of the cutting surface.

Optionally, the cutting structure 3 further comprises a connecting groove 304, the connecting groove 304 being provided between adjacent ridge bars 301.

Referring to fig. 9 and 10, in other embodiments, a plurality of ridge bars 301 are disposed at an angle, that is, adjacent ridge bars 301 are disposed at an angle, in this embodiment, the number of ridge bars 301 is 2, 3, 4, 5 or another number, and an included angle between adjacent ridge bars 301 ranges from 0 degree to 90 degrees, and in this embodiment, the number of ridge bars 301 is preferably two. The ridge-shaped strips 301 comprise a fourth ridge 3014 and a fifth ridge 3015, both the fourth ridge 3014 and the fifth ridge 3015 are arranged parallel to the bonding surface 203, the included angle between the fourth ridge 3014 and the fifth ridge 3015 is preferably 30 degrees, and the fourth ridge 3014 and the fifth ridge 3015 are arranged symmetrically to the plane of symmetry of the composite layer 2.

Referring to fig. 9 and 10, in this embodiment, the intersections of the extensions of the fourth ridges 3014 and the extensions of the fifth ridges 3015 are located on the plane of symmetry of the composite layer 2, and preferably, the ends of the smaller distance between the fourth ridges 3014 and the fifth ridges 3015 are located on the second composite layer 202, and the ends of the larger distance between the fourth ridges 3014 and the fifth ridges 3015 are located on the first composite layer 201.

Referring to fig. 9 and 10, in this embodiment, the cutting structure 3 further includes a connecting groove 304, the connecting groove 304 is located between adjacent ridge bars 301, that is, the connecting groove 304 is located between a fourth ridge 3014 and a fifth ridge 3015, the connecting groove 304 includes two groove walls, the two groove walls are connected at the groove bottom of the connecting groove 304, and the connection of the two groove walls is in a circular arc transition. The angle between the two slot walls of the coupling slot 304 is 140 degrees to 160 degrees, preferably 150 degrees. The two groove walls of the connecting groove 304 are also arranged symmetrically with respect to the plane of symmetry of the composite layer 2. The two groove walls are respectively connected with the fourth raised ridge 3014 and the fifth raised ridge 3015, and the connection positions of the two groove walls and the fourth raised ridge 3014 and the fifth raised ridge 3015 are in arc transition.

Referring to fig. 9 and 10, in this embodiment, the connecting surface 302 is used to connect the ridge-shaped strip 301 and the edge of the cutting surface, two connecting surfaces 302 are provided, and the connecting surface 302 is also inclined so as to protrude the fourth ridge 3014 and the fifth ridge 3015 through the connecting groove 304 and the inclined connecting surface 302.

By such arrangement, the connection groove 304 and the connection surface 302 protrude out of the fourth ridge 3014 and the fifth ridge 3015, so that the fourth ridge 3014 and the fifth ridge 3015 preferentially contact with the ground layer in the construction process, and the impact resistance of the composite layer 2 is improved.

Another embodiment of the present application provides a drill bit comprising a diamond compact as described above.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A diamond compact, characterized in that it comprises:

a substrate (1) comprising a first substrate (101) of a first shape and a second substrate (102) of a second shape, the second shape having a larger cross-sectional perimeter than the first shape;

the composite layer (2) comprises a first composite layer (201) with the first shape and a second composite layer (202) with the second shape, the first composite layer (201) and the second composite layer (202) are respectively arranged on one end surfaces of the first substrate (101) and the second substrate (102), and the side surface, which is far away from the substrate (1), of the composite layer (2) is provided with a cutting surface;

and the cutting structure (3) comprises a cutting part, and the cutting part is arranged on the cutting surface in a convex shape.

2. The diamond compact of claim 1, wherein the cutting portion comprises at least one ridge stripe (301), both ends of the ridge stripe (301) extending to the edges of the first composite layer (201) and the second composite layer (202), respectively, the ridge stripe (301) dividing the cutting face into a plurality of portions.

3. A diamond compact according to claim 2, characterized in that the cutting structure (3) further comprises a connecting surface (302), the connecting surface (302) connecting adjacent ridge bars (301), and the connecting surface (302) connecting the ridge bars (301) and the edge of the cutting surface.

4. A diamond compact according to claim 3, characterized in that said joint surface (302) is arranged obliquely, the distance of said joint surface (302) from said substrate (1) increasing in the direction approaching said ridge stripe (301).

5. A diamond compact according to claim 3 or 4, characterized in that one ends of the plurality of ridge bars (301) are connected to each other, and the other ends of the plurality of ridge bars (301) extend to the edge of the cutting face.

6. A diamond compact according to claim 3 or 4, characterized in that the cutting structure (3) further comprises a central face (303), the ridge (301) extending at both ends to the edges of the central face (303) and the cutting face, respectively.

7. A diamond compact according to claim 6, characterized in that the distance of the central face (303) from the substrate (1) is greater than or equal to the distance of the ridge stripe (301) from the substrate (1).

8. The diamond compact of claim 3, wherein the plurality of ridge bars (301) are disposed at an angle, and both ends of the plurality of ridge bars (301) are located at the edge of the cutting surface.

9. A diamond compact according to claim 8, wherein the cutting structure (3) further comprises attachment grooves (304), the attachment grooves (304) being provided between adjacent ridge bars (301).

10. A drill bit comprising the diamond compact of any one of claims 1 to 9.

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