CN205400637U - Petroleum geology is coring tool for well drilling - Google Patents
Petroleum geology is coring tool for well drilling Download PDFInfo
- Publication number
- CN205400637U CN205400637U CN201620128673.XU CN201620128673U CN205400637U CN 205400637 U CN205400637 U CN 205400637U CN 201620128673 U CN201620128673 U CN 201620128673U CN 205400637 U CN205400637 U CN 205400637U
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- China
- Prior art keywords
- assembly
- heart
- coring
- piston
- connecting rod
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Abstract
The utility model discloses a petroleum geology is coring tool for well drilling, include pressure regulating head, safety joint, the urceolus of coring, cut heart assembly and core bit, the inside central point of pressure regulating head puts the vertical spring that is equipped with, the lower part of spring is fixed with the piston no. One, the inside downside threaded connection of urceolus of coring cuts heart assembly, cut to be equipped with on the middle part inner wall of heart assembly and cut heart tooth, the sealed slip in bottom of cutting heart assembly is equipped with the piston no. Three, be connected through the connecting rod between no. Three pistons and the piston, the upper portion and the lower part of connecting rod are equipped with seal assembly and lower seal assembly respectively, descend seal assembly, go up seal assembly and safety joint constitution cushion chamber, the inside packing of cushion chamber has shear thickening fluid, the intermediate position of cushion chamber is improved level in the connecting rod and is equipped with the piston no. Two. The utility model discloses stable in structure is reliable, and it is good to install the shock -absorbing capacity, can provide safeguard for the well drilling coring operation.
Description
Technical field
This utility model relates to a kind of ground coring apparatus, specifically a kind of petroleum geology drilling well coring tool.
Background technology
Exploitation day by day along with oil field; the bad ground that core drilling runs into also gets more and more; carry in drill-through journey coring; owing to drilling tool vibrations are big; rock core often slips in well, affects work efficiency, and the impacting with high pressure power that regulator is subject to when coring can cause regulator to damage; cause production to produce this increase, and have impact on job schedule.
Utility model content
The purpose of this utility model is in that to provide a kind of petroleum geology drilling well coring tool, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, this utility model provides following technical scheme:
nullA kind of petroleum geology drilling well coring tool，Including pressure regulation head、Safety joint、Core urceolus、Cut heart assembly and core bit，Between described pressure regulation head and safety joint、Safety joint is threadeded with coring between urceolus and coring to be between urceolus with core bit，The inside of described pressure regulation head is pressure regulating cavity，The top of described pressure regulating cavity is provided with regulator hole，The inner hub location of described pressure regulating cavity is vertically provided with spring，Described spring is hard extension spring，The bottom of described spring is fixed with a piston，The inner wall sealing of a described piston and pressure regulation head is slidably connected，The inner lower of described urceolus of coring is threaded cuts heart assembly，The described inside cutting heart assembly is rock core chamber，The described middle part inwall cutting heart assembly is provided with and cuts heart tooth，The described sealed bottom cutting heart assembly slides and is provided with No. three pistons，Connect by connecting rod is fixing between described No. three pistons and a piston，The top of described connecting rod is provided with upper black box in the downside slipper seal of pressure regulation head，The bottom of described connecting rod is provided with lower seal assembly in the upside slipper seal cutting heart assembly，Described lower seal assembly、Upper black box and safety joint composition cushion chamber，The inside of described cushion chamber is filled with shear thickening liquid，The centre position of described cushion chamber level in connecting rod is provided with No. two pistons.
As further program of the utility model: the height in described rock core chamber is less than the height of pressure regulating cavity.
As further program of the utility model: described in cut the inside top of heart assembly and bottom is cylindrical tube, and physical dimension is identical.
As further program of the utility model: described in cut heart tooth be wave structure.
As further program of the utility model: the arcuate structure of fovea superior centered by the bottom of described No. three pistons.
Compared with prior art, the beneficial effects of the utility model are: can moving up and down of connecting rod be cushioned by shear thickening liquid, avoid under the high pressure conditions when coring, causing pressure regulation head to damage, heart tooth is cut by arranging corrugated on the inwall in rock core chamber, rock core can be held, by the bottom arcuate structure of No. three pistons, rock core is carried out negative-pressure adsorption, the steadiness of rock core can be promoted, avoiding device core end when lifting up rock core drop, and then improve production work efficiency, it is ensured that being normally carried out of job schedule.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
nullRefer to Fig. 1，In this utility model embodiment，A kind of petroleum geology drilling well coring tool，Including cutting heart tooth 1、Lower seal assembly 2、Shear thickening liquid 3、No. two pistons 4、Upper black box 5、A number piston 6、Spring 7、Regulator hole 8、Pressure regulation 9、Safety joint 10、Core urceolus 11、Cut heart assembly 12、Connecting rod 13、No. three pistons 14 and core bit 15，Between described pressure regulation 9 and safety joint 10、Safety joint 10 is threadeded with coring between urceolus 11 and core to be between urceolus 11 with core bit 15，The inside of described pressure regulation 9 is pressure regulating cavity，The top of described pressure regulating cavity is provided with regulator hole 8，The inner hub location of described pressure regulating cavity is vertically provided with spring 7，Described spring 7 is hard extension spring，The bottom of described spring 7 is fixed with a piston 6，The inner wall sealing of a described piston 6 and pressure regulation 9 is slidably connected，The inner lower of described urceolus 11 of coring is threaded cuts heart assembly 12，The described inside cutting heart assembly 12 is rock core chamber，And the height in rock core chamber is less than the height of pressure regulating cavity，Avoid damaging spring 7，The described inside top cutting heart assembly 12 and bottom are cylindrical tube，And physical dimension is identical，The described middle part inwall cutting heart assembly 12 is provided with and cuts heart tooth 1，The described heart tooth 1 that cuts is for wave structure，Can so that rock core better resides in rock core chamber by cutting heart tooth 1，The described sealed bottom cutting heart assembly 12 slides and is provided with No. three pistons 14，The arcuate structure of fovea superior centered by the bottom of described No. three pistons 14，It is connected by connecting rod 13 is fixing between described No. three pistons 14 and a piston 6，The top of described connecting rod 13 is provided with upper black box 5 in the downside slipper seal of pressure regulation 9，The bottom of described connecting rod 13 is provided with lower seal assembly 2 in the upside slipper seal cutting heart assembly 12，By lower seal assembly 2 and upper black box 5, connecting rod 13 is carried out position to fix，And sealed by lower seal assembly 2 and upper black box 5，Described lower seal assembly 2、Upper black box 5 and safety joint 10 form cushion chamber，The inside of described cushion chamber is filled with shear thickening liquid 3，The centre position of described cushion chamber level in connecting rod 13 is provided with No. two pistons 4，By shear thickening liquid 3, No. two pistons 4 are cushioned，So that No. two pistons 4 operate steadily，And then make a piston 6 and No. three pistons 14 longitudinally running steadily.
Operation principle of the present utility model is: blasts gases at high pressure beforehand through regulator hole 8 to pressure regulating cavity, and seals, and spring 7 is in extended state, and a piston 6 is positioned at the bottom of pressure regulating cavity, and No. three pistons 14 are positioned at the bottom in rock core chamber；When device advance to wait core position time, by regulator hole 8, pressure regulating cavity is carried out pressure release, the cushioning effect to No. two pistons 4 by the negative drawing effect of spring 7 and shear thickening liquid 3, a number piston 6 and No. three pistons 14 slowly move up, and core by cutting heart assembly 12, by cutting the wave structure of heart tooth 1 rock core held and rock core being carried out negative-pressure adsorption by the bottom arcuate structure of No. three pistons 14, it is possible to promote the steadiness of rock core, it is to avoid when device lifts up, rock core drops.It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and when without departing substantially from spirit of the present utility model or basic feature, it is possible to realize this utility model in other specific forms.Therefore, no matter from which point, embodiment all should be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than described above, it is intended that all changes in the implication of the equivalency dropping on claim and scope included in this utility model.Any accompanying drawing labelling in claim should be considered as the claim that restriction is involved.
In addition, it is to be understood that, although this specification is been described by according to embodiment, but not each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should be made as a whole by those skilled in the art, and the technical scheme in each embodiment through appropriately combined, can also form other embodiments that it will be appreciated by those skilled in the art that.
Claims (5)
- null1. a petroleum geology drilling well coring tool，Including pressure regulation head、Safety joint、Core urceolus、Cut heart assembly and core bit，It is characterized in that，Between described pressure regulation head and safety joint、Safety joint is threadeded with coring between urceolus and coring to be between urceolus with core bit，The inside of described pressure regulation head is pressure regulating cavity，The top of described pressure regulating cavity is provided with regulator hole，The inner hub location of described pressure regulating cavity is vertically provided with spring，Described spring is hard extension spring，The bottom of described spring is fixed with a piston，The inner wall sealing of a described piston and pressure regulation head is slidably connected，The inner lower of described urceolus of coring is threaded cuts heart assembly，The described inside cutting heart assembly is rock core chamber，The described middle part inwall cutting heart assembly is provided with and cuts heart tooth，The described sealed bottom cutting heart assembly slides and is provided with No. three pistons，Connect by connecting rod is fixing between described No. three pistons and a piston，The top of described connecting rod is provided with upper black box in the downside slipper seal of pressure regulation head，The bottom of described connecting rod is provided with lower seal assembly in the upside slipper seal cutting heart assembly，Described lower seal assembly、Upper black box and safety joint composition cushion chamber，The inside of described cushion chamber is filled with shear thickening liquid，The centre position of described cushion chamber level in connecting rod is provided with No. two pistons.
- 2. petroleum geology drilling well coring tool according to claim 1, it is characterised in that the height in described rock core chamber is less than the height of pressure regulating cavity.
- 3. petroleum geology drilling well coring tool according to claim 1, it is characterised in that described in cut the inside top of heart assembly and bottom is cylindrical tube, and physical dimension is identical.
- 4. petroleum geology drilling well coring tool according to claim 1, it is characterised in that described in cut heart tooth be wave structure.
- 5. petroleum geology drilling well coring tool according to claim 1, it is characterised in that the arcuate structure of fovea superior centered by the bottom of described No. three pistons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620128673.XU CN205400637U (en) | 2016-02-19 | 2016-02-19 | Petroleum geology is coring tool for well drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620128673.XU CN205400637U (en) | 2016-02-19 | 2016-02-19 | Petroleum geology is coring tool for well drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205400637U true CN205400637U (en) | 2016-07-27 |
Family
ID=56447870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620128673.XU Expired - Fee Related CN205400637U (en) | 2016-02-19 | 2016-02-19 | Petroleum geology is coring tool for well drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205400637U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374511A (en) * | 2019-07-11 | 2019-10-25 | 中电建路桥集团有限公司 | A kind of boring and coring drilling rod |
| CN112377132A (en) * | 2020-12-21 | 2021-02-19 | 无锡锡钻地质装备有限公司 | Directional core drill with marking function |
| CN114320197A (en) * | 2022-02-12 | 2022-04-12 | 东北石油大学 | Piston type controllable differential mechanism for fidelity coring device |
-
2016
- 2016-02-19 CN CN201620128673.XU patent/CN205400637U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374511A (en) * | 2019-07-11 | 2019-10-25 | 中电建路桥集团有限公司 | A kind of boring and coring drilling rod |
| CN112377132A (en) * | 2020-12-21 | 2021-02-19 | 无锡锡钻地质装备有限公司 | Directional core drill with marking function |
| CN112377132B (en) * | 2020-12-21 | 2024-04-30 | 无锡锡钻地质装备有限公司 | Directional core drill with marking function |
| CN114320197A (en) * | 2022-02-12 | 2022-04-12 | 东北石油大学 | Piston type controllable differential mechanism for fidelity coring device |
| CN114320197B (en) * | 2022-02-12 | 2023-08-25 | 东北石油大学 | Piston type controllable differential mechanism for fidelity coring device |
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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 |
Granted publication date: 20160727 Termination date: 20170219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |