CN202215152U - Diamond impregnated block with toothed holes - Google Patents
Diamond impregnated block with toothed holes Download PDFInfo
- Publication number
- CN202215152U CN202215152U CN2011201544584U CN201120154458U CN202215152U CN 202215152 U CN202215152 U CN 202215152U CN 2011201544584 U CN2011201544584 U CN 2011201544584U CN 201120154458 U CN201120154458 U CN 201120154458U CN 202215152 U CN202215152 U CN 202215152U
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- diamond
- impregnated
- diamond impregnated
- cave
- cutting element
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Abstract
The utility model discloses a diamond impregnated block with toothed holes, which consists of the toothed holes and a diamond impregnated block, wherein the toothed holes are positions for embedding and assembling a man-made polycrystalline diamond clad sheet (PDC), a thermal stable polycrystalline diamond (TSP) and/or a cubic boron nitride block (CBN or PCBN) and other cutting elements, the diamond impregnated block is a cutting element with the suppletion function after the embedding and assembling cutting element is damaged, and each diamond impregnated block with the toothed holes can be provided with one, two, three, four or five toothed holes. The diamond impregnated block with the toothed holes is generally used for the central part of a diamond impregnated block bit, and has lower linear velocity and less generated heat, the embedding and assembling cutting element can normally work, and is cooperatively operated with the diamond impregnated block to play the role of double insurance, the hollow-out phenomenon of the diamond impregnated block bit is better prevented, and the footage improvement is benefited. The diamond impregnated block with the toothed holes can be used in petroleum and geological bits.
Description
Technical field
The utility model belongs to oil, the geological drilling drill bit is used cutting element.
Background technology
At present, diamond-impregnated bit is widely used in oil, the drilling well of geology hard rock, has obtained good result of use.Existing impregnated diamond segment is mainly: 1. the cutter head or the joint piece that are used for the stone material saw; With the cuboid is fundamental form; The arc surface that the diameter that changes two parallel surfaces of cuboid and saw into is complementary be to improve cutting-rate, and is longitudinal layered or form wavy at cutting edge; For reducing the sawing resistance, slot in the cutter head both sides.2. be used for impregnated on the core bit; It is the approximate cuboid of two parallel surfaces and core bit coupling arc surface; For improving the drilling well timeliness at top design chamfering, layering, circumferentially fluting, pointed tooth, ball apical tooth, fluting radially, for reducing resistance, at inside and outside wall design groove; For strengthening weld strength, increase the welding plane, be designed to the dihedral weld bond.These cutter heads or impregnated are single impregnated block structures.These impregnated heart portion that is used for diamond-impregnated bit can not prevent from the bottom of one's heart well.
The utility model content
The utility model for solve existing impregnated diamond segment be used for the heart portion of diamond-impregnated bit can not fine prevention problem from the bottom of one's heart.The purpose of the utility model is exactly for the impregnated diamond segment in band tooth cave is provided.
For realizing above-mentioned purpose, the impregnated diamond segment in band tooth cave is made up of tooth cave and impregnated diamond segment.The tooth cave is the position of insert man-made polycrystalline diamond composite sheet (PDC), TSP (TSP) and/or cubic boron nitride piece cutting elements such as (CBN or PCBN), is positioned at the side of the impregnated diamond segment in band tooth cave.Being shaped as of cutting element be cylindrical, fan cylindricality, wedge shape, hexahedron, elliptical cylinder-shape or prismatic, and the tooth cave is shaped as cylindrical, fan cylindricality, wedge shape, hexahedron, elliptical cylinder-shape or prismatic for this reason.On the impregnated diamond segment in every band tooth cave 1,2,3,4 or 5 tooth caves can be arranged, impregnated diamond segment is the mixed sintering body of diamond particles and matrix material for playing the cutting element of suppletion after damaging when the insert cutting element.Diamond particles is natural diamond particle, thermally-stabilised man-made polycrystalline diamond (TSP), artificial diamond's stone granulate.
After adopting this structure, cutting element on the insert on the impregnated diamond segment in novel band tooth cave, the cutting element of insert and impregnated diamond segment collaborative work play the dual fail-safe effect.Be used for the heart portion of diamond-impregnated bit, linear velocity is lower, and it is few to produce heat, and the insert cutting element can operate as normal, cutting heart portion rock.When the insert cutting element damaged, impregnated diamond segment can be taken over became main cutting element cutting heart portion rock, the phenomenon from the bottom of one's heart of better preventing diamond-impregnated bit.The impregnated diamond segment in novel band tooth cave is used for the heart portion of diamond-impregnated bit simultaneously; Guaranteed that heart portion rock cuts fast; Heart portion rock core can not occur and withstand the phenomenon that drill bit influences rate of penetration, can significantly improve the rate of penetration and the drilling depth of diamond-impregnated bit.
Description of drawings
Diamond cast block structure one front view in Fig. 1 .1 band tooth cave
Diamond cast block structure one left view in Fig. 1 .2 band tooth cave
Diamond cast block structure one vertical view in Fig. 1 .3 band tooth cave
Diamond cast block structure two front views in Fig. 2 .1 band tooth cave
Diamond cast block structure two left views in Fig. 2 .2 band tooth cave
Diamond cast block structure two vertical views in Fig. 2 .3 band tooth cave
Diamond cast block structure three front views in Fig. 3 .1 band tooth cave
Diamond cast block structure three left views in Fig. 3 .2 band tooth cave
Diamond cast block structure three vertical views in Fig. 3 .3 band tooth cave
The impregnated diamond segment insert cutting element front view in Fig. 4 .1 band tooth cave
The impregnated diamond segment insert cutting element left view in Fig. 4 .2 band tooth cave
The impregnated diamond segment insert cutting element vertical view in Fig. 4 .3 band tooth cave
The impregnated diamond segment insert sketch map in Fig. 5 band tooth cave
1. tooth caves among the figure, 2. impregnated diamond segment, 3. cutting element, 4. matrix.
The specific embodiment
Below in conjunction with Figure of description the utility model is done further detailed description.
Embodiment one: the impregnated diamond segment in the band tooth cave shown in Fig. 1 .1, Fig. 1 .2, Fig. 1 .3 is by tooth cave 1; Impregnated diamond segment 2 is formed, and tooth cave 1 is the position of insert cutting element, is cylindrical hole among the figure; Insert PDC composite sheet etc., the concrete shape in hole is confirmed with the shape of using cutting teeth.Impregnated diamond segment 2 is mixed sintered bodies of diamond particles and matrix powder, and diamond particles is natural diamond particle, diamond, TSP and cubic boron nitride piece.Cambered surface on the impregnated diamond segment 2 and sphere are to concentrate for reducing stress, strengthen impregnated weld strength.The diameter in tooth cave 1 is identical with the width of impregnated diamond segment 2.
Embodiment two: the impregnated diamond segment in the band tooth cave shown in Fig. 2 .1, Fig. 2 .2, Fig. 2 .3 is that with the difference of the impregnated diamond segment in the tooth of band shown in Fig. 1 .1 of embodiment one, Fig. 1 .2, Fig. 1 .3 cave width of impregnated diamond segment 2 is bigger than the diameter in tooth cave 1.Each cambered surface of the impregnated diamond segment in band tooth cave is also along with variation.
Embodiment three: the impregnated diamond segment in the band tooth cave shown in Fig. 3 .1, Fig. 3 .2, Fig. 3 .3; Be to arrange on the impregnated diamond segment 22 tooth caves 1 with the difference of the impregnated diamond segment in the tooth of band shown in Fig. 1 .1 of embodiment one, Fig. 1 .2, Fig. 1 .3 cave, promptly with the impregnated diamond segment in bidentate cave.
Can also design the impregnated diamond segment with 3 above tooth caves, the shape in tooth cave 1 changes with the change in shape of cutting element, and impregnated diamond segment 2 can be designed to more shape.
Shown in Fig. 4 .1, Fig. 4 .2, Fig. 4 .3, be installed with cutting element 3 in the tooth cave 1 of the impregnated diamond segment 2 in band tooth cave.Cutting element 3 is fanned cylindricality, wedge shape, hexahedron, elliptical cylinder-shape or prismatic in addition except that cylindrical, the shape in tooth cave corresponds to cylindrical, fan cylindricality, wedge shape, hexahedron, elliptical cylinder-shape or prismatic for this reason.Cutting element 3 is artificial composite polycrystal-diamond, thermally-stabilised man-made polycrystalline diamond, cubic boron nitride piece, wear-resistant ceramic piece and natural diamond particle.
As shown in Figure 5; The impregnated diamond segment 2 that is installed with the band tooth cave of cutting element 3 is installed in the matrix 4, and impregnated diamond segment 2 is designed to help improving with matrix 4 bonding strengths and reduce the concentrated shape of stress and help improving the shape in stock-removing efficiency and application life.
When using at the scene, the impregnated diamond segment 2 that is installed with the band tooth cave of cutting element 3 is installed in the matrix 4 of drill bit heart portion.When the drill bit formation drilling, the linear velocity of heart portion cutting teeth is lower, and the heat of generation is less, and temperature is lower, generally can satisfy the job requirement of PDC composite sheet.See that from the working condition of PDC drill bit the PDC composite sheet can fine prevention phenomenon appearance from the bottom of one's heart.Facts have proved that the PDC composite sheet is used for diamond-impregnated bit heart portion can better prevent from the bottom of one's heart, the prevention diamond-impregnated bit damages in advance, helps improving drilling depth.Simultaneously, because the pressure of the drill and moment of torsion that PDC composite sheet cutting stratum needs are lower than impregnated diamond segment, therefore can play the speed-raising effect.The cutting element 3 that is installed in the tooth cave 1 also can be cubic boron nitride piece, wear-resistant ceramic piece, thermally-stabilised man-made polycrystalline diamond and natural diamond particle.When bore meeting the strong rock of abrasiveness, when cutting elements such as composite sheet 3 are comparatively fast damaged, impregnated diamond segment 2 will continue the cutting formation rock as alternative cutting element, continue maintenance not by from the bottom of one's heart.This structure plays the dual fail-safe effect from the bottom of one's heart to drill bit.
Claims (3)
1. be with the impregnated diamond segment in tooth cave; It is characterized in that: form by tooth cave (1), impregnated diamond segment (2); Tooth cave (1) is positioned at the side of the impregnated diamond segment in band tooth cave, and tooth cave (1) is 1,2,3,4 or 5, and impregnated diamond segment (2) is a sintered body.
2. the impregnated diamond segment in band tooth according to claim 1 cave; It is characterized in that: being shaped as of tooth cave (1) be cylindrical, fan cylindricality, wedge shape, hexahedron, elliptical cylinder-shape and prismatic, and being shaped as of cutting element (3) is cylindrical, fan cylindricality, wedge shape, hexahedron, elliptical cylinder-shape and prismatic.
3. the impregnated diamond segment in band tooth according to claim 1 and 2 cave is characterized in that: cutting element (3) is artificial composite polycrystal-diamond, thermally-stabilised man-made polycrystalline diamond, cubic boron nitride piece, wear-resistant ceramic piece or natural diamond particle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201544584U CN202215152U (en) | 2011-05-08 | 2011-05-08 | Diamond impregnated block with toothed holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201544584U CN202215152U (en) | 2011-05-08 | 2011-05-08 | Diamond impregnated block with toothed holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202215152U true CN202215152U (en) | 2012-05-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201544584U Expired - Fee Related CN202215152U (en) | 2011-05-08 | 2011-05-08 | Diamond impregnated block with toothed holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202215152U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399992A (en) * | 2014-10-20 | 2015-03-11 | 四川川庆石油钻采科技有限公司 | Manufacturing method of double-cutting diamond impregnated insert |
| CN104747091A (en) * | 2013-12-31 | 2015-07-01 | 中国石油化工集团公司 | Diamond impregnated segment with tooth cavities |
-
2011
- 2011-05-08 CN CN2011201544584U patent/CN202215152U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747091A (en) * | 2013-12-31 | 2015-07-01 | 中国石油化工集团公司 | Diamond impregnated segment with tooth cavities |
| CN104399992A (en) * | 2014-10-20 | 2015-03-11 | 四川川庆石油钻采科技有限公司 | Manufacturing method of double-cutting diamond impregnated insert |
| CN104399992B (en) * | 2014-10-20 | 2017-01-18 | 四川川庆石油钻采科技有限公司 | Manufacturing method of double-cutting impregnated insert |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150924 Address after: 100029 Beijing Chaoyang District Hui Xin a No. twelve layer 6 Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Patentee after: Drilling Well Technology Institute, Shengli Petroleum Engineering Co., Ltd., SINOPEC Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: China Petrochemical Group Corp. Patentee before: Well-Drilling Technology Inst., Shengli Petroleum Administration, SINOPEC |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20200508 |