CN104675324A - PDM (positive displacement motor) drilling tool for well drilling - Google Patents
PDM (positive displacement motor) drilling tool for well drilling Download PDFInfo
- Publication number
- CN104675324A CN104675324A CN201510096677.4A CN201510096677A CN104675324A CN 104675324 A CN104675324 A CN 104675324A CN 201510096677 A CN201510096677 A CN 201510096677A CN 104675324 A CN104675324 A CN 104675324A
- Authority
- CN
- China
- Prior art keywords
- bearing
- rings
- diamond compact
- ring
- bear box
- 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 title claims abstract description 17
- 238000006073 displacement reaction Methods 0.000 title abstract 2
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 25
- 239000010432 diamond Substances 0.000 claims abstract description 25
- 238000007667 floating Methods 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 19
- 238000013016 damping Methods 0.000 claims description 11
- 238000005987 sulfurization reaction Methods 0.000 claims description 7
- 230000003068 static effect Effects 0.000 abstract 8
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000004146 energy storage Methods 0.000 abstract 1
- 230000035939 shock Effects 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005855 radiation 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/003—Bearing, sealing, lubricating details
-
- 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/006—Mechanical motion converting means, e.g. reduction gearings
-
- 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/02—Fluid rotary type drives
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Support Of The Bearing (AREA)
Abstract
The invention relates to a PDM (positive displacement motor) drilling tool for well drilling, comprising a bypass valve assembly, a motor assembly, a universal shaft assembly and a driving shaft assembly, wherein the driving shaft assembly comprises a driving shaft shell, a driving shaft and a whole floating type thrust bearing; the whole floating type thrust bearing comprises a bearing shell, a plurality of bearing moving rings and a plurality of bearing static rings; a shaft sleeve is arranged between every two bearing moving rings; the bearing moving rings and the bearing static rings are all fastened and sleeve the driving shaft; two bearing static rings sleeve each shaft sleeve at intervals; an annular flange is formed on the inner wall of the bearing shell positioned between every two bearing static rings; a shock-absorption energy storage body is respectively arranged between the annular flange and every two bearing static rings; a plurality of long slots are formed in the lateral wall of each bearing static ring along the axial direction of the bearing shell; a bolt is connected with the position, corresponding to each long slot, of the bearing shell; the end part of each bolt extends into the corresponding long slot; each bearing static ring is matched with the corresponding bearing moving ring through two diamond compacts; one diamond compact is arranged on the corresponding bearing static ring; the other diamond compact is arranged on the corresponding bearing moving ring.
Description
Technical field
The present invention relates to a kind of helicoid hydraulic motor of drilling well, belong to drilling tool technical field.
Background technology
At present, drilling process many uses helicoid hydraulic motor of oil, natural gas exploration and development, helicoid hydraulic motor is formed primarily of the by-pass valve assembly connected successively, motor assembly, universal drive shaft assembly and driving-shaft assembly.There is the deficiency of several respects in existing this helicoid hydraulic motor: thrust bearing many employings ball diagonal angle bearing the first, in driving-shaft assembly (also claiming string bearing), this bearing corrosion resistance and abrasion resistance all more weak, working life is short; Also paid trial-ray method diamond sliding thrust bearing, but its impact resistance is weak, and under alternating shock load, working life is short, and unstable.The second, the stator in motor assembly is primarily of the formations such as wall thickness rubber bushing such as non-, and its obvious problem is that the additional deformation of rubber bushing is large, heat production is many, heat radiation is slow, conversion efficiency is low, is therefore difficult to meet work requirements.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of helicoid hydraulic motor of drilling well with corrosion-resistant, anti scuffing, shock resistance, thrust bearing structure that supporting capacity is strong.
For achieving the above object, the present invention takes following technical scheme: a kind of helicoid hydraulic motor of drilling well, and it comprises the by-pass valve assembly, motor assembly, universal drive shaft assembly and the driving-shaft assembly that connect successively; It is characterized in that: described driving-shaft assembly comprises the power transmission shaft thrust bearing floating type with the entirety being connected described power transmission shaft and described transmission shaft shell of transmission shaft shell, hollow; The floating type thrust bearing of described entirety comprises one and is fastenedly connected at described transmission shaft shell inwall and tubular bear box, is multiplely positioned at the bearing rotating ring of described bear box and multiple bearing stationary ring being positioned at described bear box; Between every two described bearing rotating rings, an axle sleeve is set, described bearing rotating ring and the equal adapter sleeve of axle sleeve are connected on described power transmission shaft, on axle sleeve described in each, equal interval is nested with two described bearing stationary rings, described bear box inwall between two described bearing stationary rings arranges a collar flange, described in described collar flange and two, a damping storage bodies is being set between bearing stationary ring respectively; Described in each bearing stationary ring lateral wall on offer multiple described axial arranged elongated slot along bear box, connect a screw being positioned on the right described bear box of elongated slot described in each, the end of described screw is stretched in described elongated slot; Bearing stationary ring described in each is all matched by two groups of diamond compacts with between described bearing rotating ring, and wherein the described diamond compact of a circle is arranged on described bearing stationary ring, and another encloses described diamond compact and is arranged on described bearing rotating ring.
Described damping storage bodies is rubber bodies or spring.
Described motor assembly comprises stator, rotor and the sulfuration rubber bushing on described stator inner hole, and the inner hole surface of described rotor and the internal face of described rubber bushing are spiral camber, and described rubber bushing has uniform thickness.
Each encloses described diamond compact and is multiple edge circumferentially equally distributed cylindrical diamond compact.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, the floating type thrust bearing of entirety of the present invention is provided with multiple bearing rotating ring and bearing stationary ring in bear box, wherein, bearing rotating ring adapter sleeve is connected on power transmission shaft, bearing stationary ring is limited in bear box, and flange is provided with in bear box, damping storage bodies is provided with between flange and bearing stationary ring, therefore, the present invention in use, the direction change point of axial alternating shock load is transferred on damping storage bodies by the frictional interface of diamond compact sliding friction pair, avoid and directly impact diamond compact, application life can promote significantly, meanwhile, axial load is delivered on bear box by rotating ring, stationary ring, damping storage bodies and multiple flange, substantially increases the axial carrying capacity of whole bearing body.2, the floating type thrust bearing of entirety of the present invention adopts diamond compact as sliding friction pair, has stronger to hold corrosion resistance and abrasion resistance.3, the inner hole surface of stator is set to spiral camber by motor assembly of the present invention, therefore, the rubber bushing of direct sulfuration in inner hole surface can be uniform thickness, thus additional deformation is little under operational loading, heat production is few, rapid heat dissipation to make rubber bushing, and motor transformation efficiency also can be made to have larger lifting.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is the structural representation of the overall floating type thrust bearing of the present invention;
Fig. 3 is the structural representation of motor assembly of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
Embodiment one:
As shown in Figure 1, helicoid hydraulic motor in the present embodiment comprises the by-pass valve assembly 1, motor assembly 2, universal drive shaft assembly 3 and the driving-shaft assembly 4 that connect successively, wherein, driving-shaft assembly 4 comprises the power transmission shaft 42 of transmission shaft shell 41, hollow, and the floating type thrust bearing 43 of entirety of connection for transmission axle 42 and transmission shaft shell 41.
As shown in Figure 2, overall floating type thrust bearing 43 comprises one and is fastenedly connected at transmission shaft shell 41 inwall and tubular bear box 431, is multiplely positioned at the bearing rotating ring 432 of bear box 431 and multiple bearing stationary ring 433 being positioned at bear box 431.Between every two bearing rotating rings 432, an axle sleeve 434 is set, and bearing rotating ring 432 and axle sleeve 434 all adapter sleeve are connected on power transmission shaft 42, fix to make each bearing rotating ring 432 and each axle sleeve 434 relative position, on each axle sleeve 434, equal interval is nested with two bearing stationary rings 433, bear box 431 inwall between two bearing stationary rings 433 arranges a collar flange 435, a damping storage bodies 436 is set respectively between collar flange 435 and two bearings stationary ring 433.The lateral wall of each bearing stationary ring 433 offers multiple axial arranged elongated slot 437 along bear box 431, connect a screw 438 being positioned on the right bear box of each elongated slot 437 431, the end of screw 438 is stretched into limit the rotary freedom of bearing stationary ring 433 along bear box 431 circumference in elongated slot 437, also makes the slip that bearing stationary ring 433 can occur by a small margin relative to bear box 431 simultaneously.All enclose diamond compact 439 by two between each bearing stationary ring 433 with bearing rotating ring 432 to match, wherein a circle diamond compact 439 is arranged on bearing stationary ring 433, and another circle diamond compact is arranged on bearing rotating ring 432.Each diamond compact 9 is cylindrical, and the even circumferential along bearing rotating ring 2 and bearing stationary ring 3 distributes.
In the present embodiment, damping storage bodies 436 can be rubber bodies or spring, also can be that other has the element of elastic buffer performance.
The floating type thrust bearing 43 of entirety in the present embodiment when mounted, a suitable pretightning force can be applied artificially in the axial direction, under operating load conditions, axial alternating shock load is born by entirety floating type thrust bearing 43 entirety, the direction change point of axial alternating shock load is transferred on damping storage bodies 436 by the frictional interface of diamond compact 439 sliding friction pair, achieve the entirety of the present invention under axial alternating shock load to float, avoid and directly impact diamond compact 439.Meanwhile, axial load is delivered on bear box 431 by bearing rotating ring 432, bearing stationary ring 433, damping storage bodies 436 and multiple flange 435, substantially increases the axial carrying capacity of whole bearing.
The invention has the beneficial effects as follows, the abilities such as corrosion-resistant, the anti scuffing of axial thrust bearing, shock resistance, axial carrying be strong are increased substantially, significantly extend its working life, use helicoid hydraulic motor of the present invention in the drilling process of oil, natural gas exploration and development, effectively can improve drilling duty and efficiency.
Embodiment two:
As shown in Figure 3, in the present embodiment, the motor assembly 2 of helicoid hydraulic motor comprises stator 21, rotor 22 and the sulfuration rubber bushing 23 on stator 21 endoporus, the feature of the present embodiment is, the inner hole surface of rotor 21 is spiral camber, the internal face of the rubber bushing 23 of sulfuration on stator inner hole is also spiral camber, and rubber bushing 23 has uniform thickness.
The present embodiment is by being set to spiral camber by the inner hole surface of rotor 21, make the rubber bushing 23 of direct sulfuration in inner hole surface can be that (prior art rotor inner hole surface is circular hole face to uniform thickness, the rubber bushing thin and thick difference of sulfuration in inner hole surface is large), thus additional deformation is little under operational loading, heat production is few, rapid heat dissipation to make rubber bushing 23, and motor transformation efficiency also can be made to have larger lifting.
The present invention is only described with above-described embodiment, and the structure of each parts, setting position and connection thereof all can change to some extent.On the basis of technical solution of the present invention, all improvement of carrying out individual part according to the principle of the invention or equivalents, all should not get rid of outside protection scope of the present invention.
Claims (5)
1. a helicoid hydraulic motor for drilling well, it comprises the by-pass valve assembly, motor assembly, universal drive shaft assembly and the driving-shaft assembly that connect successively; It is characterized in that: described driving-shaft assembly comprises the power transmission shaft thrust bearing floating type with the entirety being connected described power transmission shaft and described transmission shaft shell of transmission shaft shell, hollow;
The floating type thrust bearing of described entirety comprises one and is fastenedly connected at described transmission shaft shell inwall and tubular bear box, is multiplely positioned at the bearing rotating ring of described bear box and multiple bearing stationary ring being positioned at described bear box; Between every two described bearing rotating rings, an axle sleeve is set, described bearing rotating ring and the equal adapter sleeve of axle sleeve are connected on described power transmission shaft, on axle sleeve described in each, equal interval is nested with two described bearing stationary rings, described bear box inwall between two described bearing stationary rings arranges a collar flange, described in described collar flange and two, a damping storage bodies is being set between bearing stationary ring respectively; Described in each bearing stationary ring lateral wall on offer multiple described axial arranged elongated slot along bear box, connect a screw being positioned on the right described bear box of elongated slot described in each, the end of described screw is stretched in described elongated slot; Bearing stationary ring described in each with all enclose diamond compact by two between described bearing rotating ring and match, wherein the described diamond compact of a circle is arranged on described bearing stationary ring, and another encloses described diamond compact and is arranged on described bearing rotating ring.
2. the helicoid hydraulic motor of a kind of drilling well as claimed in claim 1, is characterized in that: described damping storage bodies is rubber bodies or spring.
3. the helicoid hydraulic motor of a kind of drilling well as claimed in claim 1 or 2, it is characterized in that: described motor assembly comprises stator, rotor and the sulfuration rubber bushing on described stator inner hole, the inner hole surface of described rotor and the internal face of described rubber bushing are spiral camber, and described rubber bushing has uniform thickness.
4. the helicoid hydraulic motor of a kind of drilling well as claimed in claim 1 or 2, is characterized in that: each encloses described diamond compact and is multiple edge circumferentially equally distributed cylindrical diamond compact.
5. the helicoid hydraulic motor of a kind of drilling well as claimed in claim 3, is characterized in that: each encloses described diamond compact and is multiple edge circumferentially equally distributed cylindrical diamond compact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510096677.4A CN104675324A (en) | 2015-03-04 | 2015-03-04 | PDM (positive displacement motor) drilling tool for well drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510096677.4A CN104675324A (en) | 2015-03-04 | 2015-03-04 | PDM (positive displacement motor) drilling tool for well drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104675324A true CN104675324A (en) | 2015-06-03 |
Family
ID=53310854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510096677.4A Pending CN104675324A (en) | 2015-03-04 | 2015-03-04 | PDM (positive displacement motor) drilling tool for well drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104675324A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107819363A (en) * | 2016-09-12 | 2018-03-20 | 中国石油天然气集团公司 | Motor stator and its manufacture method |
| WO2018128832A1 (en) | 2017-01-05 | 2018-07-12 | Baker Hughes, A Ge Company, Llc | Mud motors with thrust bearing with enhanced torque |
| CN110284831A (en) * | 2019-06-19 | 2019-09-27 | 广州市沙唯士电子科技有限公司 | A kind of down-the-hole drill with cooling function for exploitation of mineral resources |
| CN112879422A (en) * | 2021-02-04 | 2021-06-01 | 中国地质科学院勘探技术研究所 | Novel combined thrust bearing group for downhole motor |
| CN112879419A (en) * | 2021-02-04 | 2021-06-01 | 中国地质科学院勘探技术研究所 | PDC thrust bearing group is adjusted to motor foam metal in pit |
| CN112901654A (en) * | 2021-02-04 | 2021-06-04 | 中国地质科学院勘探技术研究所 | PDC plane thrust bearing set of downhole motor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7044240B2 (en) * | 2002-12-20 | 2006-05-16 | Mcneilly Keith | Torque absorber for downhole drill motor |
| CN201461727U (en) * | 2009-06-18 | 2010-05-12 | 巩立根 | Polycrystalline diamond sliding thrust bearing assembly |
| CN203383727U (en) * | 2013-07-17 | 2014-01-08 | 西南石油大学 | Screw drill tool with long service life and high performance |
| CN103857867A (en) * | 2011-08-26 | 2014-06-11 | 贝克休斯公司 | Downhole motors and pumps with improved stators and methods of making and using same |
| CN104196441A (en) * | 2014-08-11 | 2014-12-10 | 江阴东辰钻探设备有限公司 | Transmission shaft assembly of screw drill |
| CN204152424U (en) * | 2014-10-14 | 2015-02-11 | 长江大学 | A kind of down-hole helicoid hydraulic motor |
| CN204591121U (en) * | 2015-03-04 | 2015-08-26 | 中国海洋石油总公司 | The helicoid hydraulic motor of drilling well |
-
2015
- 2015-03-04 CN CN201510096677.4A patent/CN104675324A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7044240B2 (en) * | 2002-12-20 | 2006-05-16 | Mcneilly Keith | Torque absorber for downhole drill motor |
| CN201461727U (en) * | 2009-06-18 | 2010-05-12 | 巩立根 | Polycrystalline diamond sliding thrust bearing assembly |
| CN103857867A (en) * | 2011-08-26 | 2014-06-11 | 贝克休斯公司 | Downhole motors and pumps with improved stators and methods of making and using same |
| CN203383727U (en) * | 2013-07-17 | 2014-01-08 | 西南石油大学 | Screw drill tool with long service life and high performance |
| CN104196441A (en) * | 2014-08-11 | 2014-12-10 | 江阴东辰钻探设备有限公司 | Transmission shaft assembly of screw drill |
| CN204152424U (en) * | 2014-10-14 | 2015-02-11 | 长江大学 | A kind of down-hole helicoid hydraulic motor |
| CN204591121U (en) * | 2015-03-04 | 2015-08-26 | 中国海洋石油总公司 | The helicoid hydraulic motor of drilling well |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107819363A (en) * | 2016-09-12 | 2018-03-20 | 中国石油天然气集团公司 | Motor stator and its manufacture method |
| WO2018128832A1 (en) | 2017-01-05 | 2018-07-12 | Baker Hughes, A Ge Company, Llc | Mud motors with thrust bearing with enhanced torque |
| CN110300833A (en) * | 2017-01-05 | 2019-10-01 | 通用电气(Ge)贝克休斯有限责任公司 | Mud motor with the thrust bearing with enhancing torque |
| CN110300833B (en) * | 2017-01-05 | 2021-08-31 | 通用电气(Ge)贝克休斯有限责任公司 | Mud motor with thrust bearing having enhanced torque |
| CN110284831A (en) * | 2019-06-19 | 2019-09-27 | 广州市沙唯士电子科技有限公司 | A kind of down-the-hole drill with cooling function for exploitation of mineral resources |
| CN112879422A (en) * | 2021-02-04 | 2021-06-01 | 中国地质科学院勘探技术研究所 | Novel combined thrust bearing group for downhole motor |
| CN112879419A (en) * | 2021-02-04 | 2021-06-01 | 中国地质科学院勘探技术研究所 | PDC thrust bearing group is adjusted to motor foam metal in pit |
| CN112901654A (en) * | 2021-02-04 | 2021-06-04 | 中国地质科学院勘探技术研究所 | PDC plane thrust bearing set of downhole motor |
| CN112879419B (en) * | 2021-02-04 | 2022-07-01 | 中国地质科学院勘探技术研究所 | Foam metal-regulated PDC thrust bearing set of downhole motor |
| CN112879422B (en) * | 2021-02-04 | 2022-07-01 | 中国地质科学院勘探技术研究所 | Novel combined thrust bearing group for downhole motor |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150603 |