CN104775783A - Axial oscillating module for hydroscillator - Google Patents
Axial oscillating module for hydroscillator Download PDFInfo
- Publication number
- CN104775783A CN104775783A CN201510190474.1A CN201510190474A CN104775783A CN 104775783 A CN104775783 A CN 104775783A CN 201510190474 A CN201510190474 A CN 201510190474A CN 104775783 A CN104775783 A CN 104775783A
- Authority
- CN
- China
- Prior art keywords
- disc spring
- hydroscillator
- housing
- central axis
- fixture block
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 claims abstract description 26
- 230000010355 oscillation Effects 0.000 claims description 22
- 239000000945 filler Substances 0.000 claims description 7
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 230000003068 static effect Effects 0.000 abstract description 2
- 230000008855 peristalsis Effects 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21B7/24—Drilling using vibrating or oscillating means, e.g. out-of-balance masses
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 invention relates to an axial oscillating module for a hydroscillator, belonging to the technical field of downhole tools for petroleum and gas drilling. The axial oscillating module comprises a central shaft, an upper connector, a shell, a disc spring base, a rotating rod, a disc spring, a clamping block and a screw; the upper end of the central shaft is connected with a conventional drilling tool, and the lower end of the central shaft is connected with the disc spring base; the upper end of the upper connector is arranged on the central shaft in a sleeving manner, and the lower end of the upper connector is connected with the shell through threads; the shell is internally provided with the clamping block, the disc spring, the disc spring base and the rotating rod in sequence; the lower end of the shell is connected with a power module of the hydroscillator; the disc spring is arranged in a disc spring cavity formed among the central shaft, the shell and the disc spring base; the lower end of the disc spring base is connected with the rotating rod. The axial oscillating module is connected with the power module of the hydroscillator, and is capable of generating peristalsis of certain frequency and amplitude along the axial direction in a drilling process of a horizontal well and changing the static friction between a drilling string and a borehole wall into dynamic friction, and thus the friction resistance is reduced and a support pressing phenomenon is alleviated.
Description
Technical field
The present invention relates to a kind of hydroscillator axial oscillation module, belong to oil-gas drilling class downhole tool technical field.
Background technology
In horizontal well drilling process, drilling tool in the larger well section of hole curvature, or can produce larger frictional resistance crossing long horizontal sections, and backing pressure phenomenon is serious, effectively cannot apply the pressure of the drill.The rate of penetration that frictional resistance is large, backing pressure problem not only has a strong impact on horizontal well, also easily cause the generation of the down-hole complex accident such as sticky card simultaneously, therefore, effective measures must be adopted to reduce frictional force, one of method adopts hydroscillator, makes drill string produce the wriggling of certain frequency and amplitude in the axial direction, change stiction into kinetic force of friction, reduce the frictional resistance between tubing string and the borehole wall, prevent the generation of backing pressure.
Hydroscillator structure conventional at present comprises axial oscillation mechanism and power assembly, using drilling fluid as power source, liquid energy is changed into mechanical energy by power assembly, and the periodically variable frequency pressure pulses of association, the pressure pulse produced acts on axial oscillation mechanism, makes it produce axial high frequency and wriggles.
In prior art, the axial oscillation mechanism that hydroscillator uses, disc spring chamber and piston seal chamber are independently, cause its structure comparatively complicated.
CN 103696693 A discloses a kind of drilling water forced oscillation device, and for solving in horizontal well drilling, the drilling tool mill resistance of existence affects greatly the problem of rate of penetration and drilling tool backing pressure, and its structure comprises axial oscillation mechanism and power assembly.Axial oscillation mechanism comprises joint, disc spring, housing and piston, and fitting sleeve is contained in housing rear portion, and disc spring is connected between housing and joint, and piston is arranged on housing forward end.Power assembly comprises top connection, stator, rotor, upper valve block, lower disc and lower contact, rotor is arranged on stator interior and can rotates in the stator, stator one end is connected with axial oscillation mechanism by top connection, the other end is connected with drilling tool by lower contact, upper valve block is connected with rotor, lower disc is fixedly connected on the stator interior below valve block, and upper valve block arranges an eccentric orfice, lower disc is arranged a centre bore.This invention, in horizontal well drilling process, can produce certain frequency of oscillation, thus reaches the mill resistance reducing drilling tool and produce in horizontal well drilling process, and reaches the effect improving drilling efficiency.
Summary of the invention
The object of the invention is to the axial oscillation mechanism simplifying hydroscillator, and propose a kind of hydroscillator axial oscillation module.
The present invention is achieved by the following technical solutions:
The present invention includes central axis, top connection, housing, disc spring seat, swing arm, disc spring, fixture block and screw.Described central axis upper end is connected with conventional drilling tool, and lower end is connected with described disc spring seat; The upper end suit of described top connection is with on central axis, and lower end is connected with housing by screw thread; Described housing cavity top is provided with step, and housing 3 lower end is connected with the power plant module of hydroscillator; Set gradually described fixture block, disc spring, disc spring seat and swing arm in described housing, described screw is positioned in top connection.
The axle body of described central axis is stepped, and axle body is provided with o-ring groove and fixture block groove, and described fixture block groove is in order to install fixture block.
Be provided with disc spring chamber between described central axis and housing, disc spring seat, central axis be provided with gap between top connection, housing and be communicated with disc spring chamber.
Described top connection can be free to slide between central axis step and fixture block, and joint is provided with interior step and oil filler point, and described oil filler point carries out shutoff by screw.
Described disc spring is the multipair disc spring used in pairs, and suit is with in described disc spring chamber.
Described disc spring seat lower end is connected with swing arm, and pedestal outer rim is provided with o-ring groove.
Described swing arm upper end is connected with disc spring seat, and lower end is tetragonal.
Beneficial effect of the present invention:
(1) this invention simplifies hydroscillator axial oscillation mechanism, propose a kind of hydroscillator axial oscillation module;
(2) the present invention is connected with hydroscillator power plant module, produces the wriggling of certain frequency and amplitude in horizontal well drilling process vertically, changes the static friction between drill string and the borehole wall into dynamic friction, reduces mill resistance, alleviates backing pressure phenomenon.
Accompanying drawing explanation
Fig. 1 is front view of the invention process;
In figure: 1-central axis; 2-top connection; 3-housing; 4-disc spring seat; 5-swing arm; 6-disc spring; 7-fixture block; 8-screw.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the present invention is described further:
As shown in Figure 1, the present invention includes central axis 1, top connection 2, housing 3, disc spring seat 4, swing arm 5, disc spring 6, fixture block 7 and screw 8.Described central axis 1 upper end is connected with conventional drilling tool, and lower end is connected with described disc spring seat 4; The upper end suit of described top connection 2 is with on central axis 1, and lower end is connected with housing 3 by screw thread; Described housing 3 inner chamber top is provided with step, and housing 3 lower end is connected with the power plant module of hydroscillator; Set gradually described fixture block 7, disc spring 6, disc spring seat 4 and swing arm 5 in described housing 3, described screw 8 is positioned in top connection 2.
The axle body of described central axis 1 is stepped, and axle body is provided with o-ring groove and fixture block groove, and described fixture block groove is in order to install fixture block 7.
Be provided with disc spring chamber between described central axis 1 and housing 3, disc spring seat 4, central axis 1 be provided with gap between top connection 2, housing 3 and be communicated with disc spring chamber.
Described top connection 2 can be free to slide between central axis step and fixture block 7, and joint is provided with interior step and oil filler point, and described oil filler point carries out shutoff by screw 8.
Described disc spring 6 is the multipair disc spring used in pairs, and suit is with in described disc spring chamber.
Described disc spring seat 4 lower end is connected with swing arm 5, and pedestal outer rim is provided with o-ring groove.
Described swing arm 5 upper end is connected with disc spring seat 4, and lower end is tetragonal.
Before work, top connection 2 of the present invention is set on central axis 1, guarantee that central axis 1 step is adjacent to top connection 2 inner chamber step to expose the fixture block groove on central axis, fixture block 7 is loaded on after in fixture block groove, shell 3 is undertaken being connected to form disc spring chamber by screw thread and top connection 2, disc spring 6 is loaded in disc spring chamber.After installing disc spring 6, disc spring seat 4 is connected with swing arm 5, connect complete central axis 1 lower end that is connected to afterwards and compress disc spring 6, sealing disc spring chamber, lubrication oil injects the gap between central axis 1 and top connection 2, housing 3 by the oil filler point in top connection 2, make it flow into disc spring chamber, after oiling, carry out shutoff by screw 8.During work, upper end of the present invention is connected with conventional drilling tool by screw thread, lower end is connected with the power plant module of hydroscillator by screw thread, when drilling fluid enters described power plant module by central axis 1, liquid energy will change mechanical energy into, and the periodically variable frequency pressure pulses of association, the pressure pulse produced acts on the soffit of disc spring seat 4 of the present invention.During high pressure, it is descending together with housing 3, top connection 2 that drilling fluid promotes lower drilling tool, now housing 3 inner chamber upper step will compress disc spring 6 energy accumulation, meanwhile disc spring cavity volume reduces, and the equal-volume that is squeezed of the lubrication oil in disc spring chamber enters to central axis 1 and the gap between top connection 2 and housing 3.During low pressure, the energy that disc spring 6 is accumulated is in housing 3 inner chamber upper step, promote housing 3 be communicated with top connection 1 and lower drilling tool up, now disc spring cavity volume increases, the lubrication oil being stored in central axis 1 and top connection 2 and housing 3 gap again equal-volume enters disc spring chamber, is so concatenated to form axial high frequency and wriggles.
Claims (7)
1. a hydroscillator axial oscillation module, is characterized in that: described hydroscillator axial oscillation module comprises central axis (1), top connection (2), housing (3), disc spring seat (4), swing arm (5), disc spring (6), fixture block (7) and screw (8).Described central axis (1) upper end is connected with conventional drilling tool, and lower end is connected with described disc spring seat (4); The upper end suit of described top connection (2) is with on central axis (1), and lower end is connected with housing (3) by screw thread; Described housing (3) inner chamber top is provided with step, and housing (3) lower end is connected with the power plant module of hydroscillator; Set gradually described fixture block (7), disc spring (6), disc spring seat (4) and swing arm (5) in described housing (3), described screw (8) is positioned in top connection (2).
2. a kind of hydroscillator axial oscillation module according to claim 1, it is characterized in that: the axle body of central axis (1) is stepped, axle body is provided with o-ring groove and fixture block groove, and described fixture block groove is in order to install fixture block (7).
3. a kind of hydroscillator axial oscillation module according to claim 1 and 2, it is characterized in that: central axis (1) and housing (3), disc spring seat are provided with disc spring chamber between (4), central axis (1) be provided with gap between top connection (2), housing (3) and be communicated with disc spring chamber.
4. according to the arbitrary described a kind of hydroscillator axial oscillation module of claim 1-3, it is characterized in that: described top connection (2) can be free to slide between central axis step and fixture block (7), joint is provided with interior step and oil filler point, and described oil filler point carries out shutoff by screw (8).
5. according to the arbitrary described a kind of hydroscillator axial oscillation module of claim 1-3, it is characterized in that: described disc spring (6) is the multipair disc spring used in pairs, suit is with in described disc spring chamber.
6., according to the arbitrary described a kind of hydroscillator axial oscillation module of claim 1-3, it is characterized in that: described disc spring seat (4) lower end is connected with swing arm (5), and pedestal outer rim is provided with o-ring groove.
7., according to the arbitrary described a kind of hydroscillator axial oscillation module of claim 1-3, it is characterized in that: described swing arm (5) upper end is connected with disc spring seat (4), and lower end is tetragonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510190474.1A CN104775783A (en) | 2015-04-17 | 2015-04-17 | Axial oscillating module for hydroscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510190474.1A CN104775783A (en) | 2015-04-17 | 2015-04-17 | Axial oscillating module for hydroscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104775783A true CN104775783A (en) | 2015-07-15 |
Family
ID=53617507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510190474.1A Pending CN104775783A (en) | 2015-04-17 | 2015-04-17 | Axial oscillating module for hydroscillator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104775783A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422005A (en) * | 2015-11-12 | 2016-03-23 | 中国石油大学(北京) | Well drilling method and device through hydraulic power and disc spring coupling driving and axial vibration |
| CN112253025A (en) * | 2020-12-08 | 2021-01-22 | 中国石油天然气集团有限公司 | Vibration impact short joint |
| CN114233195A (en) * | 2021-12-18 | 2022-03-25 | 江苏航天鸿鹏数控机械有限公司 | Coiled tubing creeper for petroleum engineering |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2236540C1 (en) * | 2002-12-30 | 2004-09-20 | Габдрахимов Наиль Мавлитзянович | Vibrating means for well drilling |
| CN102704842A (en) * | 2012-05-30 | 2012-10-03 | 中国石油化工集团公司 | Hydro-oscillator for well drilling |
| CN202689936U (en) * | 2012-08-14 | 2013-01-23 | 中国石油天然气集团公司 | Water power hydraulic vibrator |
| CN203347681U (en) * | 2013-06-25 | 2013-12-18 | 中国海洋石油总公司 | Cam type high-frequency percussion drilling tool |
| CN103696693A (en) * | 2013-12-18 | 2014-04-02 | 山东陆海石油装备有限公司 | Hydraulic oscillator for well drilling |
| CN204627485U (en) * | 2015-04-17 | 2015-09-09 | 北京沃客石油工程技术研究院 | A kind of hydroscillator axial oscillation module |
-
2015
- 2015-04-17 CN CN201510190474.1A patent/CN104775783A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2236540C1 (en) * | 2002-12-30 | 2004-09-20 | Габдрахимов Наиль Мавлитзянович | Vibrating means for well drilling |
| CN102704842A (en) * | 2012-05-30 | 2012-10-03 | 中国石油化工集团公司 | Hydro-oscillator for well drilling |
| CN202689936U (en) * | 2012-08-14 | 2013-01-23 | 中国石油天然气集团公司 | Water power hydraulic vibrator |
| CN203347681U (en) * | 2013-06-25 | 2013-12-18 | 中国海洋石油总公司 | Cam type high-frequency percussion drilling tool |
| CN103696693A (en) * | 2013-12-18 | 2014-04-02 | 山东陆海石油装备有限公司 | Hydraulic oscillator for well drilling |
| CN204627485U (en) * | 2015-04-17 | 2015-09-09 | 北京沃客石油工程技术研究院 | A kind of hydroscillator axial oscillation module |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422005A (en) * | 2015-11-12 | 2016-03-23 | 中国石油大学(北京) | Well drilling method and device through hydraulic power and disc spring coupling driving and axial vibration |
| CN112253025A (en) * | 2020-12-08 | 2021-01-22 | 中国石油天然气集团有限公司 | Vibration impact short joint |
| CN114233195A (en) * | 2021-12-18 | 2022-03-25 | 江苏航天鸿鹏数控机械有限公司 | Coiled tubing creeper for petroleum engineering |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150715 |
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| WD01 | Invention patent application deemed withdrawn after publication |