CN204344033U - A kind of gas storage coring tool - Google Patents
A kind of gas storage coring tool Download PDFInfo
- Publication number
- CN204344033U CN204344033U CN201420811828.0U CN201420811828U CN204344033U CN 204344033 U CN204344033 U CN 204344033U CN 201420811828 U CN201420811828 U CN 201420811828U CN 204344033 U CN204344033 U CN 204344033U
- Authority
- CN
- China
- Prior art keywords
- gas
- connecting rod
- top connection
- cavity
- cartridge module
- 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.)
- Withdrawn - After Issue
Links
Abstract
The utility model discloses a kind of gas storage coring tool, comprise top connection, connecting rod, outer barrel component, rotation assembly, interior cartridge module, core grabber assembly and drill bit, wherein connecting rod one end is connected with top connection, the other end is connected with rotation assembly, connecting rod outer wall is provided with projection, outer barrel component one end is socketed between the top connection of connecting rod and projection, and drill bit is arranged at the outer barrel component other end; For aspect describes, suppose that top connection one side is top, drill bit one side is below; Below rotation assembly, be provided with at least one group of air storing cavity, interior cartridge module is arranged at below air storing cavity, and core grabber assembly is arranged at below interior cartridge module, and when drilling tool is carried, core grabber component bottom is airtight.Coordinating with gas ball-and-seat by arranging stepped gas collection chamber above interior cartridge module, effectively achieving the collection of oil gas, storage.
Description
Technical field
The utility model belongs to drilling and coring delivery apparatus field, is specifically related to a kind of gas storage coring tool.
Background technology
Be used for the analysis of oily in geology and research to obtain core from down-hole, all can in certain layer position coring tool core drilling.Rock core is in trip-out process, and due to the reduction of pressure, the easily volatilization or out excessive such as the oil gas water in stratum, simultaneously due to the release of pressure, the certain physical characteristics of rock core also can change thereupon.Normal core-extracting tool can not collect the gas-bearing formation data in rock core effectively, and therefore its rock core taken out is comparatively large with stratum difference in oil gas physical property, produces have a strong impact on the decision-making of exploration and development.In prior art, as the patent No. is: one section of patent of CN201120358385, by arranging ball valve at drill bit place to keep pressure when pulling out of hole, although the object of pressurize can be reached, but effectively can not store oil gas, if oil gas easily overflows during hypertonia in drilling process in inner core.
Utility model content
It is simple, easy to use that the utility model object is to provide a kind of structure, can realize the gas storage coring tool effectively storing oil gas.
For realizing above-mentioned technical purpose, use following technical scheme:
A kind of gas storage coring tool, comprise top connection, connecting rod, outer barrel component, rotation assembly, interior cartridge module, core grabber assembly and drill bit, wherein connecting rod one end is connected with top connection, the other end is connected with rotation assembly, connecting rod outer wall is provided with projection, outer barrel component one end is socketed between the top connection of connecting rod and projection, and drill bit is arranged at the outer barrel component other end; For convenience of describing, suppose that top connection one side is top, drill bit one side is below; Below rotation assembly, be provided with at least one group of air storing cavity, interior cartridge module is arranged at below air storing cavity, and core grabber assembly is arranged at below interior cartridge module, and when drilling tool is carried, core grabber component bottom is airtight.
For making the utility model more be suitable for practicality, make further improvements below:
Described air storing cavity comprises cavity and the chamber wall of closed tubular, is provided with on ball-and-seat, chamber wall is provided with gas test valve at cavity bottom.Core after terminating, utilize special testing instrument to be tested the gas collected in cavity by the gas test valve on the wall of chamber.
Described air storing cavity is set to two groups, and the ball-and-seat that top is a group is communicated with the cavity of one group, below.Make to be communicated with by ball-and-seat between the cavity of two groups of air storing cavities, the stepped gas collection chamber of formation.
The chamber wall of described airtight cylindrical chamber is provided with gas safety valve.When making the gas pressure in chamber reach the safety value of gas safety valve setting, gas safety valve is opened, release portion gas, thus remains that the gas pressure value in chamber is in safety margin.
Described connecting rod is six square bars.
The beneficial effects of the utility model are: the utility model structure is simple, easy to use, coordinate with gas ball-and-seat by arranging stepped gas collection chamber above interior cartridge module.Because in pit shaft, the pressure of drilling fluid reduces along with the reduction of well depth, in tool operation, the gas pressure stored in rock core begins to exceed the head of liquid of drilling fluid, gas in rock core discharging gradually, start to be full of whole inner core, and sealed completely by annular seal space below inner core, the release of gas begins through gas ball-and-seat and enters in air storing cavity.Due to the unidirectional principle of gas ball-and-seat, gas enters in air storing cavity and can not flow backwards, thus is effectively collected by the gas in rock core, keeps with in air storing cavity.Effectively achieve the collection of oil gas, storage.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation when creeping into.
Structural representation when Fig. 2 is the utility model trip-out.
Fig. 3 is air storing cavity structural representation.
Reference numeral: 1-top connection, 2-connecting rod, 3-rotates assembly, 4-air storing cavity, 5-outer barrel component, 6-core grabber assembly, 7-drill bit, 8-cavity, 9-chamber wall, 10-gas test valve, 11-gas safety valve, 12-ball-and-seat, and 13-is protruding, cartridge module in 14-.
Detailed description of the invention
As shown in Figure 1, Figure 2 and Figure 3, a kind of gas storage coring tool, comprise top connection 1, connecting rod 2, outer barrel component 5, rotate assembly 3, interior cartridge module 14, core grabber assembly 6 and drill bit 7, wherein connecting rod 2 one end is connected with top connection 1, the other end is connected with rotation assembly 3, connecting rod 2 outer wall is provided with protruding 13, outer barrel component 5 one end is socketed between the top connection 1 of connecting rod 2 and protruding 13, and drill bit 7 is arranged at outer barrel component 5 other end; For aspect describes, suppose that top connection 1 one side is top, drill bit 7 one side is below; Below rotation assembly 3, be provided with at least one group of air storing cavity 4, interior cartridge module 14 is arranged at below air storing cavity 4, and core grabber assembly 6 is arranged at below interior cartridge module 14, airtight bottom core grabber assembly 6 when drilling tool is carried.Described air storing cavity 4 comprises cavity 8 and the chamber wall 9 of closed tubular, is provided with on ball-and-seat 12, chamber wall 9 and is provided with gas test valve 10 bottom cavity 8.Core after terminating, utilize special testing instrument to be tested by the gas collected in 10 pairs of cavitys of the gas test valve on chamber wall 98.Described air storing cavity 4 is set to two groups, and the ball-and-seat 12 that top is a group is communicated with the cavity 8 of one group, below.Make to be communicated with by ball-and-seat 12 between the cavity 8 of two groups of air storing cavities 4, the stepped gas collection chamber of formation.The chamber wall 9 of described airtight cylindrical chamber is provided with gas safety valve 11.When making the gas pressure in chamber reach the safety value of gas safety valve 11 setting, gas safety valve 11 is opened, release portion gas, thus remains that the gas pressure value in chamber is in safety margin.Described connecting rod 2 is six square bars.
After core-drilling, above carry drilling tool, airtight bottom core grabber assembly 6, connecting rod 2 is up, and projection 13 and outer barrel component 5 step surface of connecting rod 2 are fitted, and drive whole instrument up.Because in pit shaft, the pressure of drilling fluid reduces along with the reduction of well depth, in the up process of instrument, the gas pressure stored in rock core begins to exceed the head of liquid of drilling fluid, gas in rock core discharging gradually, start to be full of whole inner core, and interior cartridge module 14 bottom is completely sealed, the release along with gas begins through ball-and-seat 12 and enters in cavity 8.Due to the unidirectional principle of ball-and-seat 12, gas enters in cavity 8 and can not flow backwards, thus is effectively collected by the gas in rock core, is stored in cavity 8.
After coring tool trips out ground, dismantle instrument, removal of core, air storing cavity 4 is shipped to ground simultaneously, utilize special testing instrument to be tested by the gas collected in 10 pairs of air storing cavities of the gas test valve on air storing cavity 44.And then effectively ensure that the integrality of rock core Mesosphere data, obtain while achieving rock core and oil gas.
Claims (5)
1. a gas storage coring tool, it is characterized in that: comprise top connection (1), connecting rod (2), outer barrel component (5), rotate assembly (3), interior cartridge module (14), core grabber assembly (6) and drill bit (7), wherein connecting rod (2) one end is connected with top connection (1), the other end is connected with rotation assembly (3), connecting rod (2) outer wall is provided with projection (13), outer barrel component (5) one end is socketed between the top connection (1) of connecting rod (2) and protruding (13), drill bit (7) is arranged at outer barrel component (5) other end, for convenience of describing, suppose that top connection (1) side is top, drill bit (7) side is below, rotation assembly (3) below is provided with at least one group of air storing cavity (4), interior cartridge module (14) is arranged at air storing cavity (4) below, core grabber assembly (6) is arranged at interior cartridge module (14) below, and when drilling tool is carried, core grabber assembly (6) bottom is airtight.
2. gas storage coring tool as claimed in claim 1, it is characterized in that: described air storing cavity (4) comprises cavity (8) and the chamber wall (9) of closed tubular, be provided with on ball-and-seat (12), chamber wall (9) in cavity (8) bottom and be provided with gas test valve (10).
3. gas storage coring tool as claimed in claim 2, it is characterized in that: described air storing cavity (4) is set to two groups, the cavity (8) of ball-and-seat (12) and the below one group that top is a group is communicated with.
4. gas storage coring tool as described in Claims 2 or 3, is characterized in that: the chamber wall (9) of described airtight cylindrical chamber is provided with gas safety valve (11).
5. gas storage coring tool as claimed in claim 1, is characterized in that: described connecting rod (2) is six square bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420811828.0U CN204344033U (en) | 2014-12-18 | 2014-12-18 | A kind of gas storage coring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420811828.0U CN204344033U (en) | 2014-12-18 | 2014-12-18 | A kind of gas storage coring tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204344033U true CN204344033U (en) | 2015-05-20 |
Family
ID=53227308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420811828.0U Withdrawn - After Issue CN204344033U (en) | 2014-12-18 | 2014-12-18 | A kind of gas storage coring tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204344033U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405320A (en) * | 2014-12-18 | 2015-03-11 | 四川川庆石油钻采科技有限公司 | Gas storing and core taking tool |
| CN108952611A (en) * | 2018-10-22 | 2018-12-07 | 吉林大学 | A kind of ocean hole bottom freezing cord coring drill and method |
-
2014
- 2014-12-18 CN CN201420811828.0U patent/CN204344033U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405320A (en) * | 2014-12-18 | 2015-03-11 | 四川川庆石油钻采科技有限公司 | Gas storing and core taking tool |
| CN104405320B (en) * | 2014-12-18 | 2017-01-25 | 四川川庆石油钻采科技有限公司 | Gas storing and core taking tool |
| CN108952611A (en) * | 2018-10-22 | 2018-12-07 | 吉林大学 | A kind of ocean hole bottom freezing cord coring drill and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2853196C (en) | Apparatus and process for extracting a sample while maintaining a pressure prevailing at the sampling site | |
| CN107109899A (en) | Core barrel head assembly with integrated sample directional orientation tool and the system using the component | |
| CN101566046A (en) | Anti-collapse hole drill tool | |
| CN108979630B (en) | Strain gauge type pressure test tight oil seepage and suction experimental device | |
| CN204344033U (en) | A kind of gas storage coring tool | |
| CN107966316A (en) | A kind of fixed sampler of hydraulic pressure and its sampling method | |
| CN104405320A (en) | Gas storing and core taking tool | |
| CN103196702A (en) | Method for measuring gas content of coal bed through airtight coring | |
| CN201060110Y (en) | Group connecting type rotary earth borrowing apparatus | |
| CN206477794U (en) | A kind of boring drill bit of fault belt Rock And Soil | |
| CN207673305U (en) | A kind of coal bed gas seismic exploration original position coring drilling with keep up pressure drilling tool | |
| CN210396678U (en) | Advance and bore geological exploration drilling sample coring device | |
| CN204609784U (en) | A kind of soft seam setting of casing locking-type combined drill | |
| CN204344034U (en) | A kind of coring drilling with keep up pressure instrument | |
| CN203285341U (en) | With-pressure wet drill coring bit | |
| CN104453760A (en) | Pressure-maintaining coring tool | |
| RU2326232C2 (en) | Well completion process | |
| CN211692372U (en) | Novel geological engineering drilling machine | |
| CN209430144U (en) | Three-layer pipe impacts core bit | |
| CN103195385B (en) | Wet brill core bit with pressure | |
| CN103195366B (en) | Wet brill coring method with pressure | |
| CN102713143B (en) | Pump-in seal | |
| CN204163667U (en) | A kind of releasing device being applied to the pressurized coring tool that surges | |
| CN204113277U (en) | The static gas pressure measurement instrument of HZZ-2 boring coal seam in-situ | |
| CN104165034B (en) | A kind of release device of the pressurized coring tool that is applied to surge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150520 Effective date of abandoning: 20161109 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |