CN202391348U - A split type instrument of getting that bores for breakable rock core - Google Patents
A split type instrument of getting that bores for breakable rock core Download PDFInfo
- Publication number
- CN202391348U CN202391348U CN2012200111763U CN201220011176U CN202391348U CN 202391348 U CN202391348 U CN 202391348U CN 2012200111763 U CN2012200111763 U CN 2012200111763U CN 201220011176 U CN201220011176 U CN 201220011176U CN 202391348 U CN202391348 U CN 202391348U
- Authority
- CN
- China
- Prior art keywords
- drill
- drill bit
- rock core
- core
- chip removal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000011435 rock Substances 0.000 title claims abstract description 38
- 238000005553 drilling Methods 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 239000000110 cooling liquid Substances 0.000 claims description 6
- 229910003460 diamond Inorganic materials 0.000 claims description 5
- 239000010432 diamond Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract 1
- 238000010008 shearing Methods 0.000 description 4
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 3
- 235000011613 Pinus brutia Nutrition 0.000 description 3
- 241000018646 Pinus brutia Species 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- TUTLDIXHQPSHHQ-UHFFFAOYSA-N tin(iv) sulfide Chemical compound [S-2].[S-2].[Sn+4] TUTLDIXHQPSHHQ-UHFFFAOYSA-N 0.000 description 1
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- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Earth Drilling (AREA)
Abstract
The utility model discloses a split type drilling tool for fragile rock core, which solves the problem that loose and fragile rock core and mud rock and the like are difficult to drill into plunger samples; the tool consists of a drill bit and a connecting piece, wherein the left end of the connecting piece is connected with a sealing sleeve on a drilling machine through a threaded screw; the left end of the drill is in threaded connection with the right end of the connecting piece, a core drill cutting head is arranged at the right end of the drill, the inner diameter of the core drill cutting head is smaller than the diameter of an inner cavity of the drill, chip removal ports are formed in the circumference of the core drill cutting head, a drill knife is formed at the edge of each chip removal port, and the length of each chip removal port is equal to that of the core drill cutting head. The drilling tool can overcome the defect of weak endurance of fragile rock cores such as loose and scattered rock cores and mudstone, and has the characteristics of high success rate, small sample breakage, good integrity, convenience in use, flexibility in loading and unloading and the like.
Description
Technical field
The utility model belongs to oil field prospecting, development field, relates to drill bit used when drilling through rock core plunger sample, and concrete is a kind ofly is applicable to pine, loose, the instrument that drills through of friable core sample.
Background technology
Experimental technique is the basis of oil field prospecting developmental research; Subsurface rock has different character; Like permeability, diffusivity, electrically, elasticity or the like; These character of test rock need the plunger sample of rule, and are very difficult for loose, soft, the sample preparation of friable core plunger, and success rate is very low.The routine that in the past adopted drills through instrument and is so-called drill bit, and is as shown in Figure 1, adopts integral structure, and its left end is a link 1, is connected with drilling rod in the sealing shroud on the drilling machine, and is provided with the drill bit cooling liquid inlet; Its right-hand member is a rock core drill crop 2, and drilling 2 is provided with chip removal mouth 3, and the edge of chip removal mouth 3 forms and bores cutter 4, and the length of the length of chip removal mouth 3 is shorter, less than the length of rock core drill crop 2.Rock core is in drilling operation, and shorter because of chip removal mouth 3, landwaste can not be discharged in the drill bit cavity, and during the drill bit rotation, landwaste can increase the extruding of sample in the drill bit and friction, causes the plunger sample of weak force resistance rock core broken; Again owing to reasons such as landwaste or rock core self expansions; The plunger sample can block and gets lodged in the drill bit cavity when drilling through sample, can not freely take out, and must firmly disclose from drill bit cooling liquid inlet 7 with thin rod; Sample could take out from drilling head end 2, can cause sample broken equally.And, cause landwaste to adhere in a large number and accumulation herein because the inner surface of drill bit cavity does not have the shearing function, increased the broken probability stifled of sample with card.Therefore, in the past rock core drill through instrument (drill bit) to pine, loose, the friable core sample has significant limitation.
Summary of the invention
The purpose of the utility model provides a kind of used instrument that drills through of rock core plunger sample that drills through, solved the problem that loose, friable core and mud stone etc. are difficult to be drilled to the plunger sample, has also reduced sample is got lodged in phenomenon in the drill bit cavity by card generation.
For realizing the foregoing invention purpose; The technical scheme that the application adopts is: a kind of split type instrument that drills through that is used for friable core; Be made up of drill bit and connector, on the said connector cooling liquid inlet be set, the left end of connector is connected with sealing shroud on the drilling machine through the screw thread screw thread; The main body of said drill bit is the round metal column casing; The left end of drill bit is threaded with the right-hand member of connector; The right-hand member of drill bit is set up the rock core drill crop, and rock core drill crop internal diameter is provided with the chip removal mouth parallel with the bit central axle less than the drill bit intracavity diameter on the circumference of rock core drill crop; The edge of chip removal mouth forms and bores cutter, the equal in length of the length of chip removal mouth and rock core drill crop.
Preferably inlay or spray diamond layer, thereby the frictional force that drill bit and sample room produce is converted into shearing force at rock core drill crop surfaces externally and internally.
The application's beneficial effect: the instrument that drills through of the utility model adopts split-type design; And drill bit cavity internal diameter is greater than sample diameter; Guaranteed that sample is not to be close in the drill bit inner chamber, so the sample that in the removal of core process, can avoid card to get lodged in the drill bit is disclosed bad by thin rod.The design of lengthening drill bit chip removal mouth in addition; The chip of having avoided in drilling operation effectively being produced in drill bit a large amount of residual with pile up; Reduced the ruined probability of rock core; Also reduced sample and got lodged in the generation of phenomenon in the drill bit cavity, protected the sample that is drilled through effectively, improved integrality and the ratio of briquetting of sample by card.At drilling surfaces externally and internally spraying or mosaic gold hard rock, increased the shearing force that the drill bit rotation brings, reduce the frictional resistance between drill bit and the sample, sample is played a very good protection, reduced the sample destructive rate.Use this drilling tool to drill through the plunger sample of friable core, have the success rate height, sample breakage property is little, and good in integrity is easy to use, loads and unloads characteristics such as flexible.
Description of drawings
Fig. 1 is that prior art is used the core bit structural representation.
Fig. 2 is the structural representation that the rock core of the utility model drills through instrument.
The specific embodiment
Further is explanation below in conjunction with accompanying drawing to the application:
By shown in Figure 1: a kind of split type instrument that drills through that is used for friable core, form by drill bit 12 and connector 11, on the said connector 11 cooling liquid inlet 17 is set, the left end of connector 11 is connected with sealing shroud on the drilling machine through the screw thread screw thread; The main body of said drill bit 12 is the round metal column casing; The left end of drill bit 12 is threaded with the right-hand member of connector 11; The right-hand member of drill bit 12 is set up rock core drill crop 13, and rock core drill crop 13 internal diameters are provided with the chip removal mouth parallel with the bit central axle 14 less than the drill bit intracavity diameter on the circumference of rock core drill crop 13; The edge of chip removal mouth 14 forms and bores cutter 15, the equal in length of the length of chip removal mouth 14 and rock core drill crop 13.Owing to inlaying at rock core drill crop 13 surfaces externally and internallies or spraying diamond layer 16, make the edge of chip removal mouth 14 and rock core drill crop 13 surfaces externally and internallies have the shearing function, therefore, bore the three-dimensional brill cutter that cutter 15 and diamond layer 16 have formed this drilling tool.
Said drilling tool bores cutter 15 and cuts the plunger sample that the mill rock core drills through and constantly get into the drilling tool cavity in drilling operation, piles up to be cut by diamond layer 16 with the chip that sticks to sample surfaces and grinds off, and the chip of the two generation can be discharged from the chip removal mouth 14 of drill bit smoothly.The sample that has drilled through can be deviate from from the right-hand member 2 of drill bit smoothly.For the stifled sample of card, den bohrkopf abbauen 12 from the connector 11 is put in the drill bit cavity with thin column that is similar to the sample diameter size or harder same diameter sample, ejects sample with barred body.
In the drilling operation, cooling fluid is flowed in the drill bit cavity by the cooling liquid inlet on the connector 17, cools off boring cutter and drill bit housing.
This split type drilling tool is practice test; The plunger sample that can accomplish special rock cores such as loose, loose rock core and mud stone drills through work; Can overcome the weak characteristics of friable core endurance property such as pine, diffusing rock core and mud stone; Farthest save sample from damage, improve the success rate that the plunger sample drills through.
Claims (2)
1. the split type instrument that drills through that is used for friable core is made up of drill bit and connector, it is characterized in that: on the said connector cooling liquid inlet is set, the left end of connector is connected with sealing shroud on the drilling machine through the screw thread screw thread; The main body of said drill bit is the round metal column casing; The left end of drill bit is threaded with the right-hand member of connector; The right-hand member of drill bit is set up the rock core drill crop, and the internal diameter of rock core drill crop is provided with the chip removal mouth parallel with the bit central axle less than the drill bit intracavity diameter on the circumference of rock core drill crop; The edge of chip removal mouth forms and bores cutter, the equal in length of the length of chip removal mouth and heart drilling head.
2. the split type instrument that drills through that is used for friable core according to claim 1 is characterized in that: inlay or spray diamond layer at rock core drill crop surfaces externally and internally.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200111763U CN202391348U (en) | 2012-01-11 | 2012-01-11 | A split type instrument of getting that bores for breakable rock core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200111763U CN202391348U (en) | 2012-01-11 | 2012-01-11 | A split type instrument of getting that bores for breakable rock core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202391348U true CN202391348U (en) | 2012-08-22 |
Family
ID=46666279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200111763U Expired - Fee Related CN202391348U (en) | 2012-01-11 | 2012-01-11 | A split type instrument of getting that bores for breakable rock core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202391348U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103409313A (en) * | 2013-08-15 | 2013-11-27 | 山东省农业科学院农业质量标准与检测技术研究所 | Electric sampler of DNA detection sample |
| CN106837182A (en) * | 2017-03-01 | 2017-06-13 | 侯如升 | A kind of road surface exploration coring bit for facilitating depoling |
| CN106903807A (en) * | 2017-05-03 | 2017-06-30 | 金代圣 | Diamond bit |
| CN109372456A (en) * | 2018-12-03 | 2019-02-22 | 邹城兖矿泰德工贸有限公司 | Core barrel |
-
2012
- 2012-01-11 CN CN2012200111763U patent/CN202391348U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103409313A (en) * | 2013-08-15 | 2013-11-27 | 山东省农业科学院农业质量标准与检测技术研究所 | Electric sampler of DNA detection sample |
| CN103409313B (en) * | 2013-08-15 | 2014-07-09 | 山东省农业科学院农业质量标准与检测技术研究所 | Electric sampler of DNA detection sample |
| CN106837182A (en) * | 2017-03-01 | 2017-06-13 | 侯如升 | A kind of road surface exploration coring bit for facilitating depoling |
| CN106903807A (en) * | 2017-05-03 | 2017-06-30 | 金代圣 | Diamond bit |
| CN109372456A (en) * | 2018-12-03 | 2019-02-22 | 邹城兖矿泰德工贸有限公司 | Core barrel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20120822 Termination date: 20190111 |