CN206053884U - sealing liquid rope coring drill - Google Patents
sealing liquid rope coring drill Download PDFInfo
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- CN206053884U CN206053884U CN201621093139.6U CN201621093139U CN206053884U CN 206053884 U CN206053884 U CN 206053884U CN 201621093139 U CN201621093139 U CN 201621093139U CN 206053884 U CN206053884 U CN 206053884U
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- inner tube
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- sealing fluid
- tube
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Abstract
The utility model relates to a sealing liquid rope coring drilling tool, which comprises an inner pipe and an outer pipe, the upper end of the outer pipe is connected with a drill rod, the lower end pipe orifice of the outer pipe is provided with a drill bit, the upper end of the inner pipe is connected with a fishing device, the lower end pipe cavity of the inner pipe is internally provided with an upper piston and a lower piston in a sliding way, a cavity used for loading sealing liquid is arranged between the upper piston and the lower piston and the inner pipe, the lower end pipe orifice of the inner pipe forms an inlet of a rock core, in the process of lifting the lower piston, a gap through which the sealing liquid passes is arranged between the lower piston and the inner pipe, the lower end of the inner pipe is also provided with a snap spring used for cutting off the rock core, the drilling of the drilling tool is realized in the process of driving the outer pipe to rotate, the rock core drives the lower piston to move upwards, so that the gap through which the sealing, the leakage of core gas is reduced, the core is cut off by the aid of the clamp spring, and the inner pipe is pulled out from the outer pipe by the aid of the fishing device.
Description
Technical field
This utility model is related to geological core drilling technical field, also can be used for oil, gas drilling core drilling neck
A kind of domain, and in particular to sealing fluid cord coring drill.
Background technology
Traditional oil, natural gas large diameter drilling take sealing rock core carry out carrying drilling coring.Deep-well puts
A time drilling tool, take a substantial amount of time, and affect drilling well work efficiency, make cost increase；Although geological core drilling realizes
Do not carry brill wire line core drilling process, however, rock core above carry during, as rock core is in the state of leakage,
Rock core is highly susceptible to pollution, and the gas in rock core easily leaks, and has a strong impact on the data analysiss accuracy of rock core.Above two
There is many deficiencies in traditional coring method.In addition, traditional oil, gas drilling sealing core drilling drilling tool structure are complicated, use
It is single on the way.
Utility model content
The purpose of this utility model is：A kind of sealing fluid cord coring drill is provided, while drilling through rock core, can be implemented
Sealing to rock core, improves speed and work efficiency that probing sealing is cored, saves drilling cost.
For achieving the above object, the technical solution adopted in the utility model is：
Sealing fluid cord coring drill, including inner tube and outer tube, the upper end of the outer tube are connected with drilling rod, the lower end of outer tube
The mouth of pipe is provided with drill bit, and the upper end of inner tube is connected with fishing device, and sliding in the lower end tube chamber of inner tube is provided with upper and lower piston,
It is provided between the upper and lower piston and inner tube for loading the chamber of sealing fluid, the lower end mouth of pipe of said inner tube constitutes rock core
Entrance, during the lower piston rises, the gap for having sealing fluid to pass through between lower piston and inner tube, the lower end of inner tube is also
It is provided with for blocking the jump ring of rock core.
This utility model is also equipped with following characteristics：
The lower end of said inner tube is connected with inner tube nipple, and the internal diameter of said inner tube nipple is kissed with the external diameter of lower piston
Close, lower piston is slidingly sealed and is arranged in inner tube nipple, the internal diameter of said inner tube is more than the external diameter of lower piston.
The upper end of said inner tube is connected with inner pipe joint, and stepped hole, the stepped hole hole are offered on said inner tube joint
Vertically, the large scale end of stepped hole is located at upper end to length direction, and the upper piston is slidingly sealed the large scale end for being arranged on stepped hole
It is interior.
Location hole is offered between said inner tube nipple and lower piston, in the location hole, alignment pin is provided with.
The lower end mouth of pipe of said inner tube nipple is connected with clip spring seat, and the jump ring is arranged in clip spring seat.
On the stepped hole of said inner tube joint, nose end is provided with spacing stopper, and the spacing stopper is constituted with upper piston and fitted
Or away from cooperation, in the spacing stopper, offer intercommunicating pore.
The drill bit is provided with multiple limbers, the two ends of limbers gap respectively between inner tube and outer tube and
Extraneous connection.
The upper end of said inner tube joint is connected with return connector, and ball valve seat is provided with intercommunicating pore, and the ball valve seat is arranged
In the tube chamber of return connector, the valve port of ball valve seat is provided with steel ball, and the outer wall of return connector is provided with connection outer tube tube chamber
Connected entrance.
Compared with the prior art, the beneficial effects of the utility model are embodied in：Drilling rod drive outer tube rotate during,
So as to the drill bit for interlocking outer tube lower end is rotated, and then the drilling of drilling tool is realized, rock core is entered in inner tube by the mouth of pipe of inner tube lower end,
Rock core is ordered about during moving on lower piston so that lower piston and inner tube produce the gap that sealing fluid passes through, sealing fluid by
Gap is flowed out, and sticks on rock core, attached so as to realize the bag to rock core, prevents the pollution of rock core, reduces rock core gas
Leak, reach sealing rock core purpose, using jump ring, so as to rock core is blocked, using fishing device so as to by inner tube from outer tube
Interior extraction, and then rock core is taken out.
Description of the drawings
Fig. 1 is the profile of sealing fluid cord coring drill；
Fig. 2 is the I enlarged drawings of Fig. 1；
Fig. 3 is the II enlarged drawings of Fig. 1.
Specific embodiment
With reference to Fig. 1 to Fig. 3, the utility model is further described：
Sealing fluid cord coring drill, including inner tube 10 and outer tube 20, the upper end of the outer tube 20 are connected with drilling rod 21, outward
The lower end mouth of pipe of pipe 20 is provided with drill bit 22, and the upper end of inner tube 10 is connected with fishing device, it is characterised in that：The lower end of inner tube 10
Slide in tube chamber and be provided with upper and lower piston 11,12, be provided between the upper and lower piston 11,12 and inner tube 10 close for loading
The chamber 13 of sealing liquid, the lower end mouth of pipe of said inner tube 10 constitute the entrance of rock core, during the lower piston 12 rises, lower work
There is the gap that sealing fluid passes through between plug 12 and inner tube 10, the lower end of inner tube 10 is additionally provided with for blocking the jump ring 14 of rock core.
This utility model is, on the basis of conventional cord coring drill structure, 10 bottom of inner tube to be designed as sealing fluid and is taken
Core structure, before probing sealing coring operation, fills preparation in the sealed chamber 13 that upper and lower piston 11,12 and inner tube 10 are formed
Viscosity height well, good fluidity, adhesive force are strong, the sealing fluid of good waterproof performance, realize inner and outer pipe 10,20 by floating upper piston 11
Fluid pressure autobalance, after the rock core of drilling enters 22 lip of drill bit, promote, now lower piston 12
Seal line is opened, and discharges the sealing fluid in inner tube 10, makes bored rock core periphery all parcel adhesion sealing liquid, prevents
Rock core pollutes, and reduces gas leak, reaches the purpose of sealing rock core.When coring is ended, it is not required to carry brill, from well by steel wire
Enter in 20 assembly of outer tube under rope fishing device, you can sealing rock core is salvaged ground；If sealing fluid column drill need not be adopted
When entering, then uneasiness switchs to conventional wire line core drilling by loading piston 12.
Used as preferred version of the present utility model, the lower end of said inner tube 10 is connected with inner tube nipple 30, said inner tube
The internal diameter of nipple 30 is coincide with the external diameter of lower piston 12, and lower piston 12 is slidingly sealed and is arranged in inner tube nipple 30, described
External diameter of the internal diameter of inner tube 10 more than lower piston 12；
In above-mentioned preferred version, when rock core driving lower piston 12 is cut off to be advanced in inner tube 10 on alignment pin 15, lower work
Plug seal line is opened, and the gap that sealing fluid can be between inner tube 10 and lower piston 12 is flowed out, and sticks on rock core, from
And realize attached to most appearance bags of rock core.After rock core enters inner tube 10, it is completely submerged in sealing fluid, realizes
Full environmental sealing to rock core.
As lower piston 12 is during upper shifting, the sealing fluid in meeting compression seal sap cavity room 13, is balance chamber 13
Interior pressure, the upper end of said inner tube 10 are connected with inner pipe joint 40, and to be threadedly coupled, said inner tube connects for above-mentioned connection
Stepped hole 401 is offered on 40, vertically, the large scale end of stepped hole 401 is located at upper end to 401 hole length direction of the stepped hole,
The upper piston 11 is slidingly sealed and is arranged in the large scale end of stepped hole 401；When the pressure of within the chamber is constant, upper piston 11
Fixed state is in, when lower piston 12 is moved up, due to the pressure rise in chamber 13, so that on upper piston 11
Move, until causing the pressure in chamber 13 to be in constant state.
To realize the fixation to lower piston 12, location hole between said inner tube nipple 30 and lower piston 12, is offered,
Alignment pin 15 is provided with the location hole, when drilling rod 21 is driven during outer tube 20 moves down, rock core cause lower piston 12 to
Upper movement, and then alignment pin 15 is cut off.
The lower end mouth of pipe of said inner tube nipple 30 is connected with clip spring seat 16, and above-mentioned connection is threaded connection, the card
Spring 14 is arranged in clip spring seat 16.When outer tube 20 stops creeping into, inner tube 10 is lifted up using fishing device, due to jump ring
The effect of seat 16, jump ring 14 produces the contraction of radial direction along at aperture position, and during contraction, jump ring 14 is by rock core
Firmly hold tightly, it is during fishing device above puies forward inner tube 10, so as to the rock core in jump ring 14 is blocked and then convenient by rock
The heart is salvaged.
Spacing to what is moved on upper piston 11 to realize, on the stepped hole 401 of said inner tube joint 40, nose end installs limited location
Stopper 41, the spacing stopper 41 and upper piston 11 are constituted and fits or away from cooperation, for convenience by the mud on upper piston 11 and
Air is excluded, and offers intercommunicating pore 411 in the spacing stopper 41.
To avoid the current between inner tube 10 and outer tube 20 from entering in inner tube 10, the drill bit 22 is provided with multiple water flowings
Hole, the two ends of the limbers are connected with the gap between inner tube 10 and outer tube 20 and the external world respectively.Drill bit 22 at this is bottom
Spray drill bit, drill bit 22 is passed through High-Pressure Water between inner tube 10 and outer tube 20 during drilling, so as to by inner tube 10 with it is outer
The current in the gap between pipe 20 are discharged, and then avoid the current between inner tube 10 and outer tube 20 from entering in inner tube 10.
The upper end of said inner tube joint 40 is connected with return connector 50, and ball valve seat 42, the ball are provided with intercommunicating pore 411
Valve seat 42 is arranged in the tube chamber of return connector 50, and the valve port of ball valve seat 42 is provided with steel ball 43, and the outer wall of return connector 50 sets
It is equipped with the connected entrance 51 of connection 20 tube chamber of outer tube；Above-mentioned return connector 50 is used for the pressure differential for balancing upper piston 11, in ball valve
In the presence of the check valve that seat 42 and steel ball 43 are constituted, the impurity such as mud cannot be entered in upper piston 11 from return connector 50.
In concrete application, drilling tool will strictly be installed figure and be assembled, and assembly program is first outside and then inside, gets on, get off (from brill
Start at 22).Seal the sealing property that inner tube assembly assembling of coring must conscientiously check the sealing ring of upper and lower piston 11,12
And the single action performance of inner tube assembly, regulate the water flowing in gap and water isolating inside and outside pipe assembly bottom and drill bit 22.
In concrete application, by the drilling tool for assembling, after outer pipe assembly is gone into the well, if select sealing core-drilling, will sealing
Core, then spacing stopper 41, upper piston 11 are taken
Go out, drilling tool is disposed vertically, in inner tube 10, then sealing fluid is filled, in order upper piston 11, spacing stopper 41 and Fen Shui are connect
50 assemble, and upper piston 11 is in lower dead point position, under enter in outer pipe assembly, you can carry out sealing wire line core drilling；
If carrying out the second round trip to core, repeat upper round trip operation；If switching to conventional wire line coring, sealing is cored under inner tube assembly
Piston 12 is laid down.
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
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type is by claims rather than described above is limited, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in this utility model.Any reference in claim should not be considered as restriction
Involved claim.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of description is only that those skilled in the art should for clarity
Using description as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, form those skilled in the art
Understandable other embodiment.
Claims (7)
1. sealing fluid cord coring drill, including inner tube (10) and outer tube (20), upper end and the drilling rod (21) of the outer tube (20)
Connection, the lower end mouth of pipe of outer tube (20) are provided with drill bit (22), and the upper end of inner tube (10) is connected with fishing device, and its feature exists
In：Slide in the lower end tube chamber of inner tube (10) and be provided with upper and lower piston (11,12), the upper and lower piston (11,12) and inner tube
(10) it is provided between for loading the chamber (13) of sealing fluid, the lower end mouth of pipe of said inner tube (10) constitutes the entrance of rock core,
During the lower piston (12) rises, the gap for having sealing fluid to pass through between lower piston (12) and inner tube (10), inner tube
(10) lower end is additionally provided with for blocking the jump ring (14) of rock core.
2. sealing fluid cord coring drill according to claim 1, it is characterised in that：The lower end connection of said inner tube (10)
There is inner tube nipple (30), the internal diameter of said inner tube nipple (30) is coincide with the external diameter of lower piston (12), and lower piston (12) is sliding
Dynamic sealing is arranged in inner tube nipple (30), and the internal diameter of said inner tube (10) is more than the external diameter of lower piston (12).
3. sealing fluid cord coring drill according to claim 1 and 2, it is characterised in that：The upper end of said inner tube (10)
Inner pipe joint (40) is connected with, stepped hole (401) on said inner tube joint (40), is offered, stepped hole (401) hole is rectangular
To vertical, the large scale end of stepped hole (401) is located at upper end, and the upper piston (11) is slidingly sealed and is arranged on stepped hole (401)
Large scale end in.
4. sealing fluid cord coring drill according to claim 2, it is characterised in that：Said inner tube nipple (30) is with
Location hole is offered between piston (12), alignment pin (15) in the location hole, is provided with.
5. sealing fluid cord coring drill according to claim 3, it is characterised in that：The step of said inner tube joint (40)
On hole (401), nose end is provided with spacing stopper (41), and the spacing stopper (41) is constituted with upper piston (11) to be fitted or away from matching somebody with somebody
Close, on the spacing stopper (41), offer intercommunicating pore (411).
6. sealing fluid cord coring drill according to claim 1, it is characterised in that：The drill bit (22) is provided with multiple
Limbers, the two ends of the limbers are connected with the gap between inner tube (10) and outer tube (20) and the external world respectively.
7. sealing fluid cord coring drill according to claim 5, it is characterised in that：The upper end of said inner tube joint (40)
Return connector (50) is connected with, intercommunicating pore (411) place is provided with ball valve seat (42), and the ball valve seat (42) is arranged on return connector
(50), in tube chamber, the valve port of ball valve seat (42) is provided with steel ball (43), and the outer wall of return connector (50) is provided with connection outer tube
(20) connected entrance (51) of tube chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621093139.6U CN206053884U (en) | 2016-09-29 | 2016-09-29 | sealing liquid rope coring drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621093139.6U CN206053884U (en) | 2016-09-29 | 2016-09-29 | sealing liquid rope coring drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206053884U true CN206053884U (en) | 2017-03-29 |
Family
ID=58366671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621093139.6U Active CN206053884U (en) | 2016-09-29 | 2016-09-29 | sealing liquid rope coring drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206053884U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223888A (en) * | 2016-09-29 | 2016-12-14 | 安徽省地质矿产勘查局313地质队 | sealing liquid rope coring drill |
| CN113898307A (en) * | 2021-09-30 | 2022-01-07 | 四川大学 | Flexible liquid storage and release mechanism of in-situ self-triggering film-forming while-drilling quality-guaranteeing coring device |
-
2016
- 2016-09-29 CN CN201621093139.6U patent/CN206053884U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223888A (en) * | 2016-09-29 | 2016-12-14 | 安徽省地质矿产勘查局313地质队 | sealing liquid rope coring drill |
| CN106223888B (en) * | 2016-09-29 | 2020-01-17 | 安徽省地质矿产勘查局313地质队 | Sealing liquid rope coring drill |
| CN113898307A (en) * | 2021-09-30 | 2022-01-07 | 四川大学 | Flexible liquid storage and release mechanism of in-situ self-triggering film-forming while-drilling quality-guaranteeing coring device |
| CN113898307B (en) * | 2021-09-30 | 2023-02-28 | 四川大学 | Flexible liquid storage and release mechanism of in-situ self-triggering film-forming while-drilling quality-guaranteeing coring device |
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| GR01 | Patent grant |