CN105201408B - A kind of nearly drill bit reamer - Google Patents
A kind of nearly drill bit reamer Download PDFInfo
- Publication number
- CN105201408B CN105201408B CN201510561004.1A CN201510561004A CN105201408B CN 105201408 B CN105201408 B CN 105201408B CN 201510561004 A CN201510561004 A CN 201510561004A CN 105201408 B CN105201408 B CN 105201408B
- Authority
- CN
- China
- Prior art keywords
- reamer
- fluid passage
- drill bit
- ring
- pressure
- 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.)
- Active
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The present invention includes column reamer body for a kind of nearly drill bit reamer, and the circumferential side wall of reamer body, which is uniformly provided with multiple installing spaces for running through fluid passage, each installing space, is respectively mounted Counterboring apparatus；Counterboring apparatus includes reamer and protecting cover.The slidable setting of reamer in through-holes, is provided with spring between reamer and protecting cover, the rear end of fluid passage is provided with support bar, and support bar is fixed on reamer body by back-up ring.The nearly drill bit reamer of the present invention can be realized to creep into reaming hole, is directly connected with drill bit, shortens the depth crept into before reaming hole.The reaming hole diameter of reamer can be controlled by drilling liquid pressure and spring, easy to use, drilling is quick, reaming hole effect is good.
Description
Technical field
The present invention is on a kind of oil and gas well drilling instrument, more particularly to a kind of nearly drill bit reamer.
Background technology
With going deep into for being exploited to oil-gas reservoir, the depth of drilling well is also progressively being deepened, and the problem of drilling well runs into is also increasingly
Complexity, and these it is complicated the problem of then need more preferable instrument to solve.Reaming hole drilling technology is exactly to be sent out in such background
What exhibition was got up, reamer is widely paid close attention to and applied also with the extensive use of reaming hole drilling technology.
Reamer is mainly for domestic widely distributed saline bed stratum, because saline bed stratum is by meeting after mud soak
Expand, cause hole shrinkage to cause the accidents such as bit freezing, so needing to carry out reaming hole operation to well, prevent bit freezing.
Reamer is also suitable a variety of drilling modes, the method that problem under more preferable processing well is provided for various drilling modes.
Drilling well reaming hole can increase annular clearance first, increase the thickness of cementing concrete ring, improve cementing quality.Secondly, in sidetracking water
Reaming hole operation is carried out during horizontal well, the step problem of sidetracking section well is reduced, prevents bit freezing.Finally it is applied to casing drilling and tail pipe
Drilling well, meets application of Special Drilling Operation mode etc..
Thus, the present inventor relies on experience and the practice for being engaged in relevant industries for many years, proposes a kind of nearly drill bit reamer, with
Overcome the defect of prior art.
The content of the invention
It is an object of the invention to provide a kind of nearly drill bit reamer, easy to use, drilling is quick, reaming hole effect is good.
The object of the present invention is achieved like this, a kind of nearly drill bit reamer, and the nearly drill bit reamer includes a reaming hole
Device body, the center of the reamer body has along its fluid passage axially through front-end and back-end；
Multiple installing spaces for running through fluid passage are uniformly provided with four the week side of boss walls of the reamer body, it is each to install
A Counterboring apparatus is separately installed with space；The Counterboring apparatus includes reamer and protecting cover corresponding with the reamer；Institute
State protecting cover to be fixed on the reamer body outer wall, the reamer is arranged in corresponding protecting cover；The reamer by
The effect of drilling liquid pressure in the fluid passage, can stretch out, the reamer to the outer circumferential of the reamer body
Overhang by drilling fluid Stress control；
The rear end of the fluid passage is provided with bruising ball stop device；Drilling well liquid energy is entered by the bruising ball stop device
To at the drill bit；The bruising ball stop device can be built the pressure the bruising ball stopper of input in the fluid passage.
In the better embodiment of the present invention, protecting cover is provided with the through hole stretched out laterally for the reamer；Institute
State that reamer is slidable to be arranged in the through hole, in initial position, the reamer is contained in the through hole and passed through
Shear pin is relatively fixed with the protecting cover；In extended position, the shear pin is cut by the pressure of drilling fluid in fluid passage
Disconnected, the reamer is reached outside through hole under drilling liquid pressure effect.
In the better embodiment of the present invention, spring, the spring one end are provided between reamer and the protecting cover
It is resisted against on the reamer, the other end is resisted against on the protecting cover.
In the better embodiment of the present invention, fluid passage is cylinder, and its internal diameter is identical with the diameter of bruising ball；
The bruising ball stop device includes support bar, and the support rod rear end is fixed on the reamer body by back-up ring, institute
State that support bar front end is stretched into the fluid passage and its diameter is less than the internal diameter of fluid passage, the back-up ring be provided with it is described
The back-up ring open-work of fluid passage connection.
In the better embodiment of the present invention, the top of reamer is provided with pressure-bearing portion, institute provided with broad, bottom
State the side wall that pressure-bearing portion forms the fluid passage together with reamer inner body wall；It is saturating provided with drilling fluid in the reamer
The fluid passage is in communication with the outside by hole, the drilling fluid open-work.
In the better embodiment of the present invention, pressure-bearing portion is the strip axially in parallel with the reamer body,
Even circumferential distribution of multiple pressure-bearing portions along the fluid passage；On the reamer body and positioned at each installing space with
The insertion position of fluid passage is respectively equipped with the strip v notch v with pressure-bearing portion form fit, and each pressure-bearing portion will be corresponding
Strip v notch v closure, and be collectively forming with reamer body the side wall of the fluid passage.
In the better embodiment of the present invention, protective case is also fixed with through hole, the protective case is provided with confession
Three is fixed together by the pin hole that shear pin is passed through, the shear pin through the protecting cover, protective case and reamer；
It can seal and be slidably matched between the reamer and protective case.
In the better embodiment of the present invention, protective case is connected with the through hole interference；The reamer includes one
The broad, bottom are fixed with the top of cylinder-shaped body, the cylinder-shaped body and is fixed with the pressure-bearing portion；The cylinder
What shape body seal was slided is located in the protective case.
In the better embodiment of the present invention, cylinder-shaped body is fixed on the centre in the pressure-bearing portion；The reaming
Provided with two springs between device and the protecting cover, a spring is located at before the cylinder-shaped body, and another spring is located at
Behind the cylinder-shaped body；Be equipped with the pressure-bearing portion and protecting cover ammunition feed spring against groove, the two ends of every spring
Bear against on the groove.
In the better embodiment of the present invention, back-up ring is one end open, the sleeve-shaped parts of one end closing；It is described to expand
It is located on eye device body behind the fluid passage and is coaxially provided with a cylindrical channel, the cylindrical channel diameter is more than stream
The diameter of body passage, forms a step between the two；The back-up ring is by being threadably mounted in the cylindrical channel, the back-up ring
Blind end be resisted against on the step；Baffle ring is provided with behind the back-up ring openend, the baffle ring is embedded in institute
In the annular groove for stating cylindrical channel side wall, the back-up ring is prevented to be moved rearwards by.
In the better embodiment of the present invention, the center of back-up ring blind end is provided with after connection through hole, the support bar
End is fixedly connected on the back-up ring on through the connection through hole and by nut；The blind end of the back-up ring, which is provided with, runs through the envelope
The back-up ring open-work of closed end.
In the better embodiment of the present invention, the lateral wall of nearly drill bit reamer is in cylinder；The reamer sheet
Body is uniformly arranged three reamers and three protecting covers corresponding with the reamer in circumferencial direction.
From the above mentioned, reamer of the invention is operated by the cooperation with bruising ball, it is possible to achieve bored in reaming hole
Enter.The reamer is directly connected with drill bit, shortens the depth crept into before reaming hole.When reamer works, drilling fluid can be passed through
Pressure and spring control the reaming hole diameter of reamer, and easy to use, drilling is quick, reaming hole effect is good.
Brief description of the drawings
The following drawings is only intended to, in doing schematic illustration and explanation to the present invention, not delimit the scope of the invention.Wherein：
Fig. 1：For the stereochemical structure sectional view of reamer of the present invention (reamer is in extended position).
Fig. 2：For the section plan of reamer of the present invention (reamer is in initial position).
Fig. 3：For the assembling schematic diagram of part-structure in reamer of the present invention.
Fig. 4：For the schematic diagram after the completion of the part-structure assembling shown in Fig. 3.
Fig. 5 A to Fig. 5 D：For the course of work schematic diagram of reamer of the present invention.
Embodiment
In order to which technical characteristic, purpose and effect to the present invention are more clearly understood from, now control illustrates this hair
Bright embodiment.
As depicted in figs. 1 and 2, the invention provides a kind of nearly drill bit reamer 100, the nearly drill bit reamer 100 includes
One reamer body 1, reamer body 1 is the column axially extended, and set the left side in Fig. 1 and Fig. 2 is as front end, the right
Rear end.There is drilling rod connecting portion 101 front end of reamer body 1, passes through the jointed rod of drilling rod connecting portion 101；There is drill bit connection rear end
Portion 102, drill bit is connected by drill bit connecting portion 102.Reamer body 1 is between drilling rod connecting portion 101 and drill bit connecting portion 102
Circumferential side wall on be formed uniformly in multiple installing spaces, each installing space and be separately installed with a Counterboring apparatus, Counterboring apparatus
Include reamer 3 and protecting cover 2 corresponding with reamer 3, protecting cover 2 is fixed on the outer wall of reamer body 1 and flushed with outer wall,
Make the lateral wall of nearly drill bit reamer 100 in cylinder.The center of reamer body 1 has along it axially through front-end and back-end
Fluid passage 103, each installing space with the insertion of fluid passage 103.Drilling rod connecting portion 101 and drill bit connecting portion 102 are
Hollow structure, respectively the front-end and back-end with fluid passage 103 connect, the drilling fluid (mud) in drilling rod is communicated to drill bit
Place.Fluid passage 103 is cylindrical channel, and its internal diameter is identical with the diameter of bruising ball 90.
It is uniformly provided with present embodiment on the circumferential side wall of reamer body 1 in three installing spaces, each installing space
Angle in 120 ° between one reamer 3 and a protecting cover 2, two neighboring reamer 3 is installed.Protecting cover 2 is fixed by screw
On the side wall of reamer body 1, installing space shape and the shape of protecting cover 2 on reamer body 1 are mutually coincide, protecting cover 2
Lateral wall flushed with the lateral wall of reamer body 1, make the lateral wall of nearly drill bit reamer 100 close an entirety and to be in
Cylinder.Each protecting cover 2 is provided with the through hole 21 stretched out laterally for corresponding reamer 3.Reamer 3 is slidable to be arranged on
In through hole 21, in initial position, reamer 3 is contained in through hole 21 and is relatively fixed by shear pin 4 with protecting cover 2；Stretching
Out position, shear pin 4 is cut under the pressure of drilling fluid, and reamer 3 slides in and out under the pressure of drilling fluid along through hole 21,
And extend outward to outside through hole 21, carry out reaming hole operation.Reamer 3 includes a cylinder-shaped body 33, the cylinder-shaped body 33
Top be fixed with broad 31, bottom and be fixed with pressure-bearing portion 32, pressure-bearing portion 32 act as forming the one of fluid passage 103
Partial sidewall, and bear the pressure of drilling fluid to promote reamer 3 to be displaced outwardly.Specifically, pressure-bearing portion 32 is and reamer
The axially in parallel strip of body 1, as shown in figure 3, the upper surface in pressure-bearing portion 32 is rectangular plane, lower surface is the first arc
Shape face, first arcwall face constitutes a part of side wall of fluid passage 103, and the pressure-bearing portions 32 of three reamers 3 is along fluid passage
103 even circumferential distribution.Positioned at each installing space and the insertion of fluid passage 103 in installing space on reamer body 1
Position, provided with the strip v notch v with the form fit of pressure-bearing portion 32, is reamer body between two adjacent strip v notch vs
1, reamer body 1 its inner wall surface between two neighboring strip v notch v is the second arcwall face, and second arcwall face is constituted
A part of side wall of fluid passage 103, pressure-bearing portion 32 closes the strip v notch v, i.e., along the circumference side of fluid passage 103
To the inwall of reamer body 1 between pressure-bearing portion 32 and two neighboring pressure-bearing portion 32 that uniform intervals are set together form stream
The cylindrical side wall of the closing of body passage 103.Drilling fluid open-work 34 is additionally provided with reamer 3, drilling fluid open-work 34 leads to fluid
Road 103 is in communication with the outside；I.e. the drilling fluid open-work 34 is main along the radial penetration of nearly drill bit reamer 100 cylinder from pressure-bearing portion 32
Body 33 is communicated at the broad 31 at the top of reamer 3, is in communication with the outside, drilling fluid is sent at broad 31.
Spring 5 is provided between reamer 3 and protecting cover 2, the one end of spring 5 is resisted against on reamer 3, the other end is resisted against protecting cover
On 2；Reamer 3 is in initial position, and spring 5 is also at initial length, without tensile force and compression stress, the initial length of spring 5
Degree makes pressure-bearing portion 32 just be sealed on corresponding strip v notch v.After shear pin 4 is cut, in reamer 3 by drilling well
During the outside pressure of liquid, spring 5 forms inside restoring force to reamer 3, when drilling liquid pressure is more than the elastic force of spring 5,
Reamer 3 moves a segment distance and reaches balance again with spring force laterally, by controlling the pressure of drilling fluid and the bullet of spring 5
Power controls the overhang of reamer 3, so as to control the size of reaming hole.In the present embodiment, the specific set-up mode of spring 5
For：Each provided with two springs between reamer 3 and corresponding protecting cover 2, cylinder-shaped body 33 is fixed on the center in pressure-bearing portion 32
Between, two springs 5 are symmetricly set on the front and rear sides of cylinder-shaped body 33, and a spring 5 is located at before cylinder-shaped body 33,
Another spring 5 is located at behind cylinder-shaped body 33.Be equipped with pressure-bearing portion 32 and protecting cover 2 two ends of ammunition feed spring 5 against it is recessed
Groove 22,321, the two ends of every spring 5 are born against on corresponding groove 22,321.
The rear end of fluid passage 103 is provided with bruising ball stop device, and drilling well liquid energy is entered by the bruising ball stop device
To at drill bit；Bruising ball stop device can be built the pressure the bruising ball stopper of input in fluid passage 103.Bruising ball backstop is filled
Put including a support bar 6, the rear end of support bar 6 is fixed on reamer body 1 by back-up ring 7, and fluid passage is stretched into front end
103 interior and its diameter are less than the internal diameter of fluid passage, and back-up ring 7 is provided with the back-up ring open-work 71 connected with fluid passage 103.Into
Entered to the drilling fluid in fluid passage 103 by back-up ring open-work 71 at drill bit below.Back-up ring 7 is one end open, one end
It is located on the sleeve-shaped parts of closing, reamer body 1 behind fluid passage 103 and is coaxially provided with a cylindrical channel, cylinder
Shape channel diameter is more than the diameter of fluid passage 103, forms a step 104 between the two.Back-up ring 7 is by being threadably mounted at the circle
In cylindrical passageway, the blind end of back-up ring 7 is resisted against on step 104；Baffle ring 9, baffle ring 9 are provided with behind back-up ring openend
In the annular groove 105 for being embedded in cylindrical channel side wall, back-up ring 7 is prevented to be moved rearwards by.The center of back-up ring blind end is provided with connection
Through hole, the rear end of support bar 6 passes through the connection through hole, and is fixedly connected on by nut on back-up ring 7, is set on the blind end of back-up ring 7
There is the back-up ring open-work 71 through the blind end.
Further, as shown in figure 3, being also fixed with protective case 8 in through hole 21, protective case 8 is connected with the interference of through hole 21, circle
What the sealing of cylindrical bodies 33 was slided is located in protective case 8, the scratch protecting cover 2 of reamer 3 when the effect of protective case 8 prevents work
Through hole 21.Cylinder-shaped body 33 is provided with annular seal groove 331, and sealing ring is provided with annular seal groove.Protective case 8 is provided with
The pin hole 81 passed through for shear pin 4, shear pin 4 fixes three through protecting cover 2, protective case 8 and cylinder-shaped body 33
Together.After shear pin 4 is cut, seal and be slidably matched between the cylinder-shaped body 33 and protective case 8 of reamer 3.
Referring to Fig. 3, the present invention is when mounted：The first step ajusts reamer 3；Spring 5 is put under reamer 3 by second step
Hold corresponding to pressure-bearing portion 32 in groove 321；3rd step buckles protecting cover 2, and protecting cover 2 is embedded with protective case 8；4th step is by shear pin
4 penetrate in protecting cover 2, protective case 8 and the corresponding hole of reamer 3, prevent maloperation when reamer works, and make the relative shield of reamer 3
Lid 2 and protective case 8 are fixed together.As shown in figure 4, protecting cover 2 is fixed by screws in into reamer main body 1 after installing
On, 2 have through hole 21 on protecting cover, and reamer 3 can stretch out progress reaming hole operation from through hole 21.
The present invention operation principle be：Started using pitching bruising mode, when drilling is to the well section for needing reaming hole, input
Bruising ball 90.Bruising ball 90 is pushed in the fluid passage 103 of reamer 100 by drilling liquid pressure, is installed in fluid passage 103
There is support bar 6, fitted after bruising ball 90 reaches support bar 6 with support bar 6, because now three reamers 3 are not flared out,
The internal diameter of fluid passage 103 is identical with the diameter of bruising ball 90, and fluid passage 103 is closed by bruising ball 90, at this moment reamer inner part drilling
Well liquid pressure is improved.When drilling liquid pressure bears pressure more than shear pin 4, shear pin 4 is cut, and reamer 3 stretches out,
The strip v notch v of the side wall of fluid passage 103 is opened, and drilling fluid flows to expansion from drilling fluid open-work 34 simultaneously by the space of opening
At spot facing cutter 31, flowed to from back-up ring open-work 71 at drill bit, reamer proceeds by reaming hole operation.The overhang that reamer 3 works
By drilling liquid pressure control, when drilling liquid pressure is more than spring force, reamer 3 stretches out work all the time, can complete in reaming hole
Drilling condition.
Referring to Fig. 5 A to Fig. 5 D, use the drilling process of the present invention for：Drilling rod 91, reamer 100 and drill bit 92 in Fig. 5 A
It is sequentially connected and is crept into；Drilling is to reaming hole well section, it is necessary to which when carrying out reaming hole operation, bruising ball 90 is put into drilling rod 91 in Fig. 5 B
In, bruising ball 90 is pushed by drilling fluid enters reamer 100.Bruising ball 90 and support bar 6 are fitted in Fig. 5 C, in reamer 100
Portion fluid passage 103 is closed, and the pressure of the drill starts rise, and when reaching certain value, shear pin 4 is cut, and reamer 3 stretches out, and opens
Beginning reaming hole works.When reamer 100 needs adjustment reaming hole diameter in Fig. 5 D, adjusted by the spring 5 in the pressure of the drill and reamer
Section.
From the above mentioned, reamer of the invention is operated by the cooperation with bruising ball, it is possible to achieve bored in reaming hole
Enter.The reamer is directly connected with drill bit, shortens the depth crept into before reaming hole.When reamer works, drilling fluid can be passed through
Pressure and spring control the reaming hole diameter of reamer, and easy to use, drilling is quick, reaming hole effect is good.
Schematical embodiment of the invention is the foregoing is only, the scope of the present invention is not limited to.It is any
Those skilled in the art, made equivalent variations and modification on the premise of the design of the present invention and principle is not departed from,
The scope of protection of the invention should be belonged to.
Claims (10)
1. a kind of nearly drill bit reamer, it is characterised in that the nearly drill bit reamer includes a reamer body, the reamer
The center of body has along its fluid passage axially through front-end and back-end；
Multiple installing spaces for running through fluid passage, each installing space are uniformly provided with four the week side of boss walls of the reamer body
In be separately installed with a Counterboring apparatus；The Counterboring apparatus includes reamer and protecting cover corresponding with the reamer；The shield
Lid is fixed on the reamer body outer wall, and the reamer is arranged in corresponding protecting cover；The reamer is by described
The effect of drilling liquid pressure in fluid passage, can stretch out, the reamer is stretched to the outer circumferential of the reamer body
Output by drilling fluid Stress control；
The rear end of the fluid passage is provided with bruising ball stop device；Drilling well liquid energy enters institute by the bruising ball stop device
State at drill bit；The bruising ball stop device can be built the pressure the bruising ball stopper of input in the fluid passage；
The fluid passage is cylinder, and its internal diameter is identical with the diameter of bruising ball；The bruising ball stop device includes support
Bar, the support rod rear end is fixed on the reamer body by back-up ring, and the support bar front end is stretched into the fluid and led to
In road and its diameter is less than the internal diameter of fluid passage, the back-up ring is provided with the back-up ring open-work that is connected with the fluid passage；Institute
State the sleeve-shaped parts that back-up ring is closed for one end open, one end；It is located on the reamer body behind the fluid passage
A cylindrical channel is coaxially provided with, the cylindrical channel diameter is more than the diameter of fluid passage, forms a step between the two；
The back-up ring is by being threadably mounted in the cylindrical channel, and the blind end of the back-up ring is resisted against on the step；Described
Baffle ring is provided with behind back-up ring openend, the baffle ring is embedded in the annular groove of cylindrical channel side wall, prevented
The back-up ring is moved rearwards by.
2. nearly drill bit reamer as claimed in claim 1, it is characterised in that the protecting cover is provided with outside for the reamer
The through hole that side is stretched out；The reamer is slidable to be arranged in the through hole, and in initial position, the reamer is contained in institute
State in through hole and be relatively fixed by shear pin with the protecting cover；In extended position, the shear pin is by fluid passage
The pressure of drilling fluid is cut, and the reamer is reached outside through hole under drilling liquid pressure effect.
3. nearly drill bit reamer as claimed in claim 2, it is characterised in that bullet is provided between the reamer and the protecting cover
Spring, the spring one end is resisted against on the reamer, the other end is resisted against on the protecting cover.
4. drill bit reamer as claimed in claim 3 nearly, it is characterised in that the top of the reamer provided with broad,
Bottom is provided with pressure-bearing portion, and the pressure-bearing portion forms the side wall of the fluid passage together with reamer inner body wall；The reaming
Drilling fluid open-work is provided with device, the fluid passage is in communication with the outside by the drilling fluid open-work.
5. nearly drill bit reamer as claimed in claim 4, it is characterised in that the pressure-bearing portion is and the reamer body shaft
To parallel strip, even circumferential distribution of multiple pressure-bearing portions along the fluid passage；On the reamer body and
The strip v notch v with pressure-bearing portion form fit is respectively equipped with positioned at the insertion position of each installing space and fluid passage, respectively
The pressure-bearing portion closes corresponding strip v notch v, and is collectively forming with reamer body the side wall of the fluid passage.
6. nearly drill bit reamer as claimed in claim 5, it is characterised in that protective case, institute are also fixed with the through hole
State protective case and be provided with the pin hole passed through for shear pin, the shear pin passes through the protecting cover, protective case and reamer
Three is fixed together；It can seal and be slidably matched between the reamer and protective case.
7. nearly drill bit reamer as claimed in claim 6, it is characterised in that the protective case is connected with the through hole interference；
The reamer includes being fixed with the broad, bottom fixation at the top of a cylinder-shaped body, the cylinder-shaped body
State pressure-bearing portion；What the cylinder-shaped body sealing was slided is located in the protective case.
8. nearly drill bit reamer as claimed in claim 7, it is characterised in that the cylinder-shaped body is fixed on the pressure-bearing portion
Centre；Provided with two springs between the reamer and the protecting cover, a spring is located at before the cylinder-shaped body,
Another spring is located at behind the cylinder-shaped body；Be equipped with the pressure-bearing portion and protecting cover ammunition feed spring against groove,
The two ends of every spring are born against on the groove.
9. nearly drill bit reamer as claimed in claim 8, it is characterised in that the center of the back-up ring blind end is logical provided with connection
Hole, the support rod rear end is fixedly connected on the back-up ring on through the connection through hole and by nut；The closing of the back-up ring
End is provided with the back-up ring open-work through the blind end.
10. nearly drill bit reamer as claimed in claim 9, it is characterised in that the lateral wall of the nearly drill bit reamer is in circle
Cylindricality；The reamer body is uniformly arranged three reamers and three protecting covers corresponding with the reamer in circumferencial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510561004.1A CN105201408B (en) | 2015-09-06 | 2015-09-06 | A kind of nearly drill bit reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510561004.1A CN105201408B (en) | 2015-09-06 | 2015-09-06 | A kind of nearly drill bit reamer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105201408A CN105201408A (en) | 2015-12-30 |
| CN105201408B true CN105201408B (en) | 2017-09-01 |
Family
ID=54949321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510561004.1A Active CN105201408B (en) | 2015-09-06 | 2015-09-06 | A kind of nearly drill bit reamer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105201408B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10689914B2 (en) * | 2018-03-21 | 2020-06-23 | Saudi Arabian Oil Company | Opening a wellbore with a smart hole-opener |
| CN109296330B (en) * | 2018-10-16 | 2024-05-28 | 中国石油天然气集团有限公司 | Hydraulic mouth repairing tool for expansion pipe |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2637700Y (en) * | 2003-07-17 | 2004-09-01 | 中国石油天然气集团公司 | Drilling underreaming device |
| CN101012736A (en) * | 2007-02-08 | 2007-08-08 | 大庆石油学院 | Slim-hole hydraulic controlled reducing reaming bit |
| CN200949424Y (en) * | 2006-09-01 | 2007-09-19 | 新疆蓝海石油工程技术有限责任公司 | Hydraulic driving two-way hole expanding device during drilling |
| CN201321821Y (en) * | 2008-12-25 | 2009-10-07 | 中国海洋石油总公司 | Hydraulic type underreamer while drilling |
| CN204386474U (en) * | 2015-01-07 | 2015-06-10 | 成都晋林石油机械有限责任公司 | Drill-following reamer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7036611B2 (en) * | 2002-07-30 | 2006-05-02 | Baker Hughes Incorporated | Expandable reamer apparatus for enlarging boreholes while drilling and methods of use |
-
2015
- 2015-09-06 CN CN201510561004.1A patent/CN105201408B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2637700Y (en) * | 2003-07-17 | 2004-09-01 | 中国石油天然气集团公司 | Drilling underreaming device |
| CN200949424Y (en) * | 2006-09-01 | 2007-09-19 | 新疆蓝海石油工程技术有限责任公司 | Hydraulic driving two-way hole expanding device during drilling |
| CN101012736A (en) * | 2007-02-08 | 2007-08-08 | 大庆石油学院 | Slim-hole hydraulic controlled reducing reaming bit |
| CN201321821Y (en) * | 2008-12-25 | 2009-10-07 | 中国海洋石油总公司 | Hydraulic type underreamer while drilling |
| CN204386474U (en) * | 2015-01-07 | 2015-06-10 | 成都晋林石油机械有限责任公司 | Drill-following reamer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105201408A (en) | 2015-12-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108119094B (en) | Two-plugging one-injection one-row hole sealing device for deep coal seam gas extraction drilling and use method | |
| US4809793A (en) | Enhanced diameter clean-out tool and method | |
| WO2006121699A3 (en) | Flow through subassembly for a downhole drill string and method for making same | |
| CN105201408B (en) | A kind of nearly drill bit reamer | |
| CA2671096A1 (en) | System and method for longitudinal and lateral jetting in a wellbore | |
| BR112013013147A2 (en) | Wellhead apparatus and method for multi-zone well completion, production and injection | |
| CN106567676B (en) | Buckling type tail drillng operation device and its operational method | |
| CN105672925A (en) | Sealed sampling device for gas sample | |
| CN104121013B (en) | For the water detection device of horizontal well and use its method determining water exit position | |
| CN201310319Y (en) | Half-way cementing tool without drilling plug | |
| CN106907146A (en) | One kind control valve and hydrofracturing geodetic stress test device | |
| CN108316877A (en) | Equal hole diameters expansion sleeve hydraulic variable diameter milling tool | |
| RU2020106414A (en) | BOREHOLE DISCHARGE WITH OSCILLATING DAMPER | |
| CN205330612U (en) | Hole sealing device for gas extraction | |
| CN110926954B (en) | Staged hydraulic fracturing test device and test method under true triaxial condition | |
| CN206694021U (en) | A kind of control valve and hydrofracturing geodetic stress test device | |
| CN205135419U (en) | Hole enlargement ware in pit | |
| CN110454207B (en) | Anchor pumping integrated method for deep coal seam mining floor rock roadway | |
| CN108240205B (en) | Underground casing two-stage cone expansion device and operation method thereof | |
| CN205025362U (en) | Nearly drill bit reamer | |
| CN109681152B (en) | Outburst coal seam hole protection device and sieve tube lowering method thereof | |
| CN103742092A (en) | Expansion pipe completing tool | |
| CN203729929U (en) | Expansion pipe completing tool | |
| CN105201476B (en) | A kind of sleeve type hydraulic jeting device and the tubing string including device | |
| CN203114269U (en) | Sliding sleeve type negative pressure testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |