CN108222836A - A kind of two-way reaming hole drilling tool - Google Patents
A kind of two-way reaming hole drilling tool Download PDFInfo
- Publication number
- CN108222836A CN108222836A CN201810005829.9A CN201810005829A CN108222836A CN 108222836 A CN108222836 A CN 108222836A CN 201810005829 A CN201810005829 A CN 201810005829A CN 108222836 A CN108222836 A CN 108222836A
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- China
- Prior art keywords
- center tube
- shell
- hole
- reaming
- wing
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- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 44
- 238000006073 displacement reaction Methods 0.000 claims abstract description 13
- 210000002445 nipple Anatomy 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to the two-way reaming hole drilling tools that reaming while drilling technology is used in a kind of drilling engineering, more particularly to back reaming reaming hole technology.It is solved the problems, such as in drilling process since hole shrinkage causes drill string to be hampered and meet card.Its technical solution is：Upper shell upper end and the screwed connection of top connection lower end, upper shell lower end and the screwed connection of lower shell upper end；The rectangle counterbore of wing middle inside is inserted in the rectangular preiection in the middle part of upper center tube outer circle；Flow nipple and upper center tube upper end counterbore interference fit；Upper center tube is mounted on upper shell inner cavity, and two wings are separately mounted in two grooves in the middle part of upper shell；Spring one end is mounted on the step surface in the middle part of lower shell inner cavity, and the spring other end is compressed by the anti-lower face that caps off；Screw and lower shell lower thread stepped hole fasten, and screw one end is inserted into the displacement sliding slot of lower center tube outer circle lower part.The present invention can effectively carry out reaming hole in positive reaming and back reaming operation process, it is therefore prevented that drill string meets the generation of card.
Description
Technical field
The present invention relates to the two-way reaming hole drilling tools that reaming while drilling technology is used in a kind of drilling engineering, more particularly to fall
Reaming reaming hole technology.
Background technology
In oil and gas industry, oil-gas reservoir is explored and exploitation necessarily refers to drilling engineering.With shallow-layer oil
The increasingly depleted of gas reservoir, drilling depth are continuously increased, to be developed to the oil-gas reservoir of deeper layer.With drilling depth
It being continuously increased, geologic structure is also more complicated, especially under the action of deep formation confining pressure and circulation of drilling fluid invade bubble, wellbore contracting
The situation of diameter happens occasionally.Hole shrinkage can cause round trip to be hampered and meet card, if hole shrinkage cannot be effectively treated
Situation, it is likely that can lead to that drilling tool is buried and the accident scrapped of big section wellbore occurs, be brought to oil and gas well drilling huge
Economic loss.
Reaming while drilling technology is can to carry out a kind of drilling technology of reaming hole operation to being drilled to well section while drilling,
Have become a kind of processing effective way of hole shrinkage.Reaming while drilling technology can solve a variety of undergrounds in the application of shrinkage section
Complex situations improve oil/gas well quality, while also save drilling cost.It must just be used using reaming while drilling technology corresponding
Reaming while drilling tool, the reaming while drilling tool that the current country uses mostly use for reference with foreign imitation product, in certain technological layer
On also achieve good effect.However reaming while drilling tool both domestic and external is substantially all and can only carry out unidirectional reaming hole work at present
Industry usually can only all ensure the progress reaming hole operation during positive reaming operation, but in engineer application during back reaming
Drill string is hampered or happens occasionally the phenomenon that meeting card, therefore there is an urgent need for can make in positive reaming operation and back reaming in engineer application field
The two-way hole reaming tool of reaming hole operation can be carried out in industry.
Invention content
The purpose of the present invention is：In order to solve in drilling process since hole shrinkage causes drill string to be hampered and meet the asking of card
Topic, provides a kind of two-way reaming hole drilling tool.
In order to achieve the above object, the present invention uses following technical scheme：A kind of two-way reaming hole drilling tool, is connect from above
Head, upper shell, flow nipple, upper center tube, wing, pin, steel ball, it is anti-cap off, spring, lower center tube, lower shell and screw structure
Into；Its structure feature is：Top connection upper end and upper drilling string screwed connection, lower shell lower end and lower drilling string screwed connection；
Upper shell upper end and the screwed connection of top connection lower end, upper shell lower end and the screwed connection of lower shell upper end；It is circumferential in the middle part of upper shell
Two groove connection interior or exterior spaces are uniformly arranged, groove both ends are set as slope surface；Upper center tube upper end sets a counterbore, upper center
One circle circular groove of pipe lower face setting, upper center tube outer circle middle part is circumferential to be uniformly arranged two rectangular preiections, rectangular preiection
Outer end sets a through-hole；Wing middle inside sets a rectangle counterbore, and rectangle counterbore both sides are provided with waist through hole, wing inside
Both ends are set as slope surface, and both ends are set as slope surface on the outside of wing, and wing is equipped with cutting tooth on outside；The square of wing middle inside
Shape counterbore is inserted in the rectangular preiection in the middle part of upper center tube outer circle, and pin passes through the waist through hole of wing rectangle counterbore both sides to be mounted on
In the middle part of upper center tube outer circle in the through-hole of rectangular preiection outer end；Flow nipple and upper center tube upper end counterbore interference fit；Upper center
Pipe is mounted on upper shell inner cavity, and two wings are separately mounted in two grooves in the middle part of upper shell；Upper shell is welded by two halves
It forms, welding assembly is carried out again after installation is complete in upper center tube and wing；Lower center tube outer circle lower part is provided with displacement and slides
Slot, displacement sliding slot have in the axial direction there are three extreme position, and lower center tube upper end is set as raised step, lower center tube upper surface
One circle circular groove of setting；Steel ball is mounted on upper center tube lower face circular groove and lower center tube upper surface is arc-shaped recessed
In the annular space that slot is formed；Prevent that capping off upper end is provided with internal thread, it is anti-to cap off the raised inner edge of one circle of lower end setting, prevent capping off
End and the screwed connection of upper center tube lower end prevent that capping off lower end protrusion inner edge pushes down lower center tube upper end raised step；In lower shell
One step surface of setting in the middle part of chamber, lower shell lower part set a screw thread stepped hole；Spring one end is mounted in the middle part of lower shell inner cavity
On step surface, the spring other end is compressed by the anti-lower face that caps off；Screw and lower shell lower thread stepped hole fasten, screw one end
It is inserted into the displacement sliding slot of lower center tube outer circle lower part.
The beneficial effects of the invention are as follows：(1) present invention can carry out wellbore effectively expanding, repair the well section of undergauge；(2)
The present invention can effectively carry out reaming hole in positive reaming and back reaming operation process, it is therefore prevented that drill string meets the generation of card；(3) originally
Invention is controlled using the flow parameter for changing drilling fluid, easy to operate effective；(4) present invention uses block formula reamer wing,
Intensity is high, and mechanical life is long.
Description of the drawings
Fig. 1 is a kind of structure diagram of two-way reaming hole drilling well guarded blade utility knife wing retracted state of the present invention；
Fig. 2 is the structure diagram opened in a kind of two-way reaming hole drilling well guarded blade utility knife flapwise of the present invention；
Fig. 3 is the structure diagram opened under a kind of two-way reaming hole drilling well guarded blade utility knife flapwise of the present invention；
Fig. 4 is Figure 1A-A cross-sectional views；
Fig. 5 is the three dimensional structure diagram of upper shell of the present invention；
Fig. 6 is the three dimensional structure diagram of wing of the present invention；
Fig. 7 is the three dimensional structure diagram of lower center tube of the present invention；
Fig. 8 is the circumferentially deploying figure of displacement sliding slot in lower center tube lower part of the present invention；
In figure：1. top connection, 2. upper shells, 3. flow nipples, 4. upper center tubes, 5. wings, 6. pins, 7. steel balls, 8. are prevented
Cap off, 9. springs, 10. lower center tubes, 11. lower shells, 12. screws, 101. displacement sliding slots.
Specific embodiment
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of two-way reaming hole drilling tool of the present invention, is by top connection 1, upper shell
2nd, flow nipple 3, upper center tube 4, wing 5, pin 6, steel ball 7, anti-cap off 8, spring 9, lower center tube 10, lower shell 11 and screw
12 are formed；Its structure feature is：1 upper end of top connection and upper drilling string screwed connection, 11 lower end of lower shell and lower drilling string silk
Button connection；The 1 lower end screwed connection of 2 upper end of upper shell and top connection, the 11 upper end screwed connection of 2 lower end of upper shell and lower shell；Such as
Shown in Fig. 5,2 middle part of upper shell is circumferential to be uniformly arranged two groove connection interior or exterior spaces, and groove both ends are set as slope surface；Upper center
4 upper end of pipe sets a counterbore, and circular groove is enclosed in 4 lower face of upper center tube setting one, and 4 outer circle of upper center tube middle part is circumferential uniform
Two rectangular preiections are set, and rectangular preiection outer end sets a through-hole；The rectangle counterbore of 5 middle inside of wing is inserted in upper center tube 4
Rectangular preiection in the middle part of outer circle, pin 6 pass through the waist through hole of 5 rectangle counterbore both sides of wing to be mounted in 4 outer circle of upper center tube
In the through-hole of portion rectangular preiection outer end；4 upper end counterbore interference fit of flow nipple 3 and upper center tube；Upper center tube 4 is mounted on upper cylinder
2 inner cavity of body, two wings 5 are separately mounted in two grooves at 2 middle part of upper shell；Upper shell 2 is welded by two halves, upper
Central tube 4 and wing 5 carry out welding assembly again after installation is complete；Steel ball 7 is mounted on 4 lower face circular groove of upper center tube
In the annular space formed with 10 upper surface circular groove of lower center tube；Prevent that capping off 8 upper ends is provided with internal thread, it is anti-to cap off 8
The raised inner edge of one circle of lower end setting, it is anti-to cap off the 4 lower end screwed connection of 8 upper ends and upper center tube, it is anti-to cap off 8 lower end protrusion inner edges pressure
It stays 10 upper end raised step of central tube；One step surface of setting in the middle part of 11 inner cavity of lower shell, 11 lower part of lower shell set a screw thread
Stepped hole；9 one end of spring is mounted on the step surface in the middle part of 11 inner cavity of lower shell, and 9 other end of spring caps off 8 lower end face pressures by anti-
Tightly；Screw 12 and 11 lower thread stepped hole of lower shell fasten, and the displacement of 10 outer circle lower part of lower center tube is inserted into 12 one end of screw
101 in sliding slot.
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 6,5 middle inside of wing sets a rectangle counterbore, and rectangle counterbore both sides are provided with
Waist through hole, 5 inside both ends of wing are set as slope surface, and 5 outside both ends of wing are set as slope surface, are equipped with and cut on 5 outside of wing
Cut tooth.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 7 and Fig. 8,10 outer circle lower part of lower center tube is provided with displacement sliding slot 101, and displacement is slided
Slot 101 is set in the axial direction there are three extreme position, and 10 upper end of lower center tube is set as raised step, 10 upper surface of lower center tube
One circle circular groove of setting.
A kind of operation principle of two-way reaming hole drilling tool of the present invention is：The tripping in present invention is to underground, initial position such as Fig. 1
Shown, screw 12 is in displacement 101 middle position of sliding slot at this time；Turn on pump circulating fluid adjusts drilling fluid and is in big flow
State, upper center tube 4 and 10 entirety of lower center tube move down, and state of the present invention is as shown in figure 3, the downward opening of wing 5, above carries at this time
Drill string can carry out the reaming hole of back reaming operation process；It adjusts drilling fluid and is in small flow status, upper center tube 4 and lower center tube 10
Entirety moves up, and for state of the present invention as shown in Fig. 2, wing 5 opens upwards, decentralization drill string can carry out normal reaming hole operation at this time；Often
Increase a mud flow rate, then reduce a mud flow rate, 5 position of wing all generates variation.
Claims (3)
1. a kind of two-way reaming hole drilling tool is by top connection (1), upper shell (2), flow nipple (3), upper center tube (4), wing
(5), pin (6), steel ball (7), anti-(8), spring (9), lower center tube (10), lower shell (11) and the screw (12) of capping off are formed；
It is characterized in that：Top connection (1) upper end and upper drilling string screwed connection, lower shell (11) lower end and lower drilling string screwed connection；
Upper shell (2) upper end and top connection (1) lower end screwed connection, upper shell (2) lower end and lower shell (11) upper end screwed connection；On
Circumferential in the middle part of cylinder (2) to be uniformly arranged two groove connection interior or exterior spaces, groove both ends are set as slope surface；On upper center tube (4)
One counterbore of end setting, one circle circular groove of upper center tube (4) lower face setting, upper center tube (4) outer circle middle part are circumferential uniform
Two rectangular preiections are set, and rectangular preiection outer end sets a through-hole；The rectangle counterbore of wing (5) middle inside is inserted in upper center tube
(4) rectangular preiection in the middle part of outer circle, the waist through hole of pin (6) across wing (5) rectangle counterbore both sides are mounted on upper center tube
(4) in the middle part of outer circle in the through-hole of rectangular preiection outer end；Flow nipple (3) and upper center tube (4) upper end counterbore interference fit；Upper center
(4) are managed mounted on upper shell (2) inner cavity, two wings (5) are separately mounted in two grooves in the middle part of upper shell (2)；Steel ball
(7) annular formed mounted on upper center tube (4) lower face circular groove and lower center tube (10) upper surface circular groove
In space；Prevent that capping off (8) upper end is provided with internal thread, it is anti-to cap off the raised inner edge of one circle of (8) lower end setting, prevent capping off (8) upper end
With upper center tube (4) lower end screwed connection, prevent that capping off (8) lower end protrusion inner edge pushes down lower center tube (10) upper end raised step；
One step surface of setting in the middle part of lower shell (11) inner cavity, lower shell (11) lower part set a screw thread stepped hole；It installs spring (9) one end
On the step surface in the middle part of lower shell (11) inner cavity, spring (9) other end is compressed by anti-(8) lower face that caps off；Screw (12) and
Lower shell (11) lower thread stepped hole fastens, and screw (12) one end is inserted into the displacement sliding slot of lower center tube (10) outer circle lower part
(101)。
2. two-way reaming hole drilling tool according to claim 1, it is characterized in that：Wing (5) the middle inside setting one
Rectangle counterbore, rectangle counterbore both sides are provided with waist through hole, and both ends are set as slope surface, wing (5) outside both ends on the inside of wing (5)
Slope surface is set as, wing (5) is equipped with cutting tooth on outside.
3. two-way reaming hole drilling tool according to claim 1, it is characterized in that：Lower center tube (10) the outer circle lower part is set
Displacement sliding slot (101) is equipped with, there are three extreme positions for setting in the axial direction for displacement sliding slot (101), and lower center tube (10) upper end is set
It is set to raised step, one circle circular groove of lower center tube (10) upper surface setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810005829.9A CN108222836A (en) | 2018-01-03 | 2018-01-03 | A kind of two-way reaming hole drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810005829.9A CN108222836A (en) | 2018-01-03 | 2018-01-03 | A kind of two-way reaming hole drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108222836A true CN108222836A (en) | 2018-06-29 |
Family
ID=62645176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810005829.9A Pending CN108222836A (en) | 2018-01-03 | 2018-01-03 | A kind of two-way reaming hole drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108222836A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1675325A (en) * | 1926-01-28 | 1928-07-03 | Benjamin F Blanchard | Hydraulic underreamer |
| US1785949A (en) * | 1928-12-05 | 1930-12-23 | Willis C George | Hydraulic expanding underreamer |
| CN1965145A (en) * | 2004-06-09 | 2007-05-16 | 霍利贝顿能源服务股份有限公司 | Enlarging and stabilising tool for a borehole |
| CN101012736A (en) * | 2007-02-08 | 2007-08-08 | 大庆石油学院 | Slim-hole hydraulic controlled reducing reaming bit |
| CN102345442A (en) * | 2011-06-29 | 2012-02-08 | 西南石油大学 | Electric hole diameter expander |
| EP2467556B1 (en) * | 2009-08-21 | 2013-06-19 | Paul Bernard Lee | Expandable downhole tool apparatus |
| 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 |
| CN105863514A (en) * | 2016-04-11 | 2016-08-17 | 西南石油大学 | Hydraulic control type reaming tool during drilling |
| CN105888558A (en) * | 2016-06-17 | 2016-08-24 | 王岳 | Downhole reamer |
-
2018
- 2018-01-03 CN CN201810005829.9A patent/CN108222836A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1675325A (en) * | 1926-01-28 | 1928-07-03 | Benjamin F Blanchard | Hydraulic underreamer |
| US1785949A (en) * | 1928-12-05 | 1930-12-23 | Willis C George | Hydraulic expanding underreamer |
| CN1965145A (en) * | 2004-06-09 | 2007-05-16 | 霍利贝顿能源服务股份有限公司 | Enlarging and stabilising tool for a borehole |
| CN101012736A (en) * | 2007-02-08 | 2007-08-08 | 大庆石油学院 | Slim-hole hydraulic controlled reducing reaming bit |
| EP2467556B1 (en) * | 2009-08-21 | 2013-06-19 | Paul Bernard Lee | Expandable downhole tool apparatus |
| CN102345442A (en) * | 2011-06-29 | 2012-02-08 | 西南石油大学 | Electric hole diameter expander |
| 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 |
| CN105863514A (en) * | 2016-04-11 | 2016-08-17 | 西南石油大学 | Hydraulic control type reaming tool during drilling |
| CN105888558A (en) * | 2016-06-17 | 2016-08-24 | 王岳 | Downhole reamer |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180629 |
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| WD01 | Invention patent application deemed withdrawn after publication |