CN203584327U - Drill bit stabilizer - Google Patents
Drill bit stabilizer Download PDFInfo
- Publication number
- CN203584327U CN203584327U CN201320709344.0U CN201320709344U CN203584327U CN 203584327 U CN203584327 U CN 203584327U CN 201320709344 U CN201320709344 U CN 201320709344U CN 203584327 U CN203584327 U CN 203584327U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- alloy sheath
- spring
- stabilizer
- main body
- 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.)
- Expired - Lifetime
Links
- 239000003381 stabilizer Substances 0.000 title claims abstract description 16
- 239000000956 alloy Substances 0.000 claims abstract description 22
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 17
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000003044 adaptive effect Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000087 stabilizing effect Effects 0.000 abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 11
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000036346 tooth eruption Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model belongs to a drill bit stabilizer, which is provided with a main body, wherein an upper alloy sheath is arranged into the upper part of the main body by tight fit; a lower alloy sheath is arranged into the lower part of the main body by screw-thread fit; a central spindle is arranged into the upper alloy sheath; the upper part of the central spindle is provided with an upper water hole; the central spindle is sheathed with an upper spring; a lower spring is arranged into the lower alloy sheath; the lower end of the central spindle is supported by the lower spring. The drill bit stabilizer has the key technology that the wall of the main body is provided with a mounting hole, a stabilizing head is arranged into the mounting hole, the stabilizing head is sheathed with a stabilizing head spring, and the lower alloy sheath is provided with dialing sheets by hinge pins. The drill bit stabilizer disclosed by the utility model has the beneficial effects that the stabilizing head of the stabilizer achieves the balanced configuration of flexibly stable support and deflecting steering, the well drilling requirement that the working stability of the drill bit can be improved both in a vertical well section and directional well sections of different radiuses of curvature can be realized, so that the drill bit has the advantages of stronger adaptive capacity and longer service life.
Description
Technical field
The utility model belong to that a kind of oil, geology use with the matching used stabilizer of rotary drilling drill bit, particularly a kind of extension type flexible stabilization structure.
Background technology
At present, in the field such as oil, geology, use rotary drilling drill bit (comprise PDC drill bit, rotary drill first-class) very extensive.Due to the heterogeneity character on stratum, when PDC drill bit creeps into work in shaft bottom often in a kind of unsettled duty.There is considerable influence in the cutting teeth life-span of the drill bit of unsettled duty, easily causes cutting teeth to damage in advance and makes drill bit lose the attacking ability more bit change of having to.For improving the job stability of drill bit, conventionally have two kinds of modes to improve drill bit job stability: the end of first PDC drill bit cutting teeth on each wing increases has a shiny surface contacting with the borehole wall to improve the job stability of drill bit, this shiny surface is called rule footpath.More the job stability of long drill bit is stronger in rule footpath.It two is after drill bit, to connect a centralizer, and the rule footpath of principle and drill bit lengthens similar.But in directional well creeps into, some well track curvature is very large, and now longer rule footpath end or centralizer meeting and the stratum contact squeeze of drill bit, is all rigid structures owing to being extruded position, be unfavorable for that drill bit deflecting turns to, cannot guarantee well track quality in directional drilling.
Summary of the invention
Problem to be solved in the utility model is exactly the shortcoming existing for above-mentioned prior art, provides a kind of at straight well section and directional well section applicable rotary steering stabilizer all.Its technical scheme is as follows:
It has body, in body, top adopts tight fit to pack alloy sheath into, in body, below adopts threaded engagement to pack lower alloy sheath into, in upper alloy sheath, pack mandrel into, mandrel top has upper hydrophthalmia, on mandrel, be set with upper spring, in lower alloy sheath, pack lower spring into, the lower end of mandrel is supported by lower spring; Its key technology is to have installing hole on the wall of body, packs stable head in installing hole into, is set with stable head spring on stable head, on lower alloy sheath, by bearing pin, plectrum is installed.
Compared with prior art, the beneficial effect the utlity model has is:
This stabilizer is installed stable head, on lower alloy sheath, by bearing pin, plectrum is installed.When drilling fluid displacement is enough large, the pressure that drilling fluid produces upper hydrophthalmia will make upper and lower compression deformation of the spring, thereby mandrel component is moved down along stabilizer axial direction, mandrel moves down and drives plectrum to rotate, plectrum rotation promotes stable head and radially outward moves to the borehole wall and contact along stabilizer, keeps the stable of drill bit.Make the stable head of stabilizer there is flexible Telescopic more flexibly, can automatically adjust the length that stable head stretches out body according to the amount of curvature of drilling interval, thereby reach the balanced arrangement that flexible stabilization supports and deflecting turns to, realized the drilling well demand that directional well section in straight well section and different curvature radius can improve drill bit job stability and made drill bit adaptive capacity stronger, the life-span is higher.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
The specific embodiment
Referring to Fig. 1, the utlity model has body 6, the interior top of body 6 adopts tight fit to pack alloy sheath 7 into, the interior below of body 6 adopts threaded engagement to pack lower alloy sheath 11 into, in upper alloy sheath 7, pack mandrel 3 into, mandrel 3 tops have upper hydrophthalmia 5, on mandrel 3, be set with upper spring 4, in lower alloy sheath 11, pack lower spring 1 into, the lower end of mandrel 3 is supported by lower spring 1, mandrel 3, upper hydrophthalmia 5, upper spring 4 and lower spring 1 form mandrel component, and upper hydrophthalmia, mandrel and lower alloy sheath all have centre bore, can allow drilling fluid pass through; Its key technology is to have installing hole on the wall of body 6, in installing hole, pack stable head 9 into, on stable head 9, be set with stable head spring 10, on lower alloy sheath 11, by bearing pin 2, plectrum 8 is installed, plectrum 8 can, around bearing pin 2 rotations, promote stable head 9 and move in rotation.
This structure can make drilling fluid flow through from stabilizer heart portion.Upper hydrophthalmia has less centre bore, and when drilling fluid displacement is very little, drilling fluid only flows through from the heart portion hole of upper hydrophthalmia (sees the mobile direction P of drilling fluid in Fig. 1
1), when drilling fluid displacement is enough large, (see the mobile direction P of drilling fluid in Fig. 1
2), the pressure that drilling fluid produces upper hydrophthalmia will make upper and lower compression deformation of the spring, thereby mandrel component is moved down along stabilizer axial direction, mandrel moves down and drives plectrum to rotate, plectrum rotation promotes stable head and radially outward moves to the borehole wall and contact along stabilizer, keeps the stable of drill bit.When drilling fluid displacement reduces, each organizes spring makes again stable head and mandrel component return to initial position.
Claims (1)
1. a rotary steering stabilizer, there is body (6), in body (6), top adopts tight fit to pack alloy sheath (7) into, in body (6), below adopts threaded engagement to pack lower alloy sheath (11) into, in upper alloy sheath (7), pack mandrel (3) into, mandrel (3) top has upper hydrophthalmia (5), at the upper suit of mandrel (3) upper spring (4), in lower alloy sheath (11), pack lower spring (1) into, the lower end of mandrel (3) is supported by lower spring (1); It is characterized in that having installing hole on the wall of body (6), in installing hole, pack stable head (9) into, the upper suit of stable head (9) stable head spring (10), upper by bearing pin (2) installation plectrum (8) at lower alloy sheath (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320709344.0U CN203584327U (en) | 2013-11-11 | 2013-11-11 | Drill bit stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320709344.0U CN203584327U (en) | 2013-11-11 | 2013-11-11 | Drill bit stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203584327U true CN203584327U (en) | 2014-05-07 |
Family
ID=50582263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320709344.0U Expired - Lifetime CN203584327U (en) | 2013-11-11 | 2013-11-11 | Drill bit stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203584327U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100206A (en) * | 2014-07-18 | 2014-10-15 | 成都保瑞特钻头有限公司 | Drill bit with stabilizer |
| CN106907117A (en) * | 2017-05-10 | 2017-06-30 | 西南石油大学 | Universal wheel type near-bit stabilizer |
-
2013
- 2013-11-11 CN CN201320709344.0U patent/CN203584327U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100206A (en) * | 2014-07-18 | 2014-10-15 | 成都保瑞特钻头有限公司 | Drill bit with stabilizer |
| CN106907117A (en) * | 2017-05-10 | 2017-06-30 | 西南石油大学 | Universal wheel type near-bit stabilizer |
| CN106907117B (en) * | 2017-05-10 | 2018-08-03 | 西南石油大学 | Universal wheel type near-bit stabilizer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204877265U (en) | Developments push away by rotatory steerable drilling instrument of formula | |
| CN203584327U (en) | Drill bit stabilizer | |
| CN104847265A (en) | Cylindroid telescopic reducing drilling tool | |
| US20150368978A1 (en) | Powered reaming device | |
| CN106437517B (en) | Low-edge constant jet anti-inclination drilling tool | |
| CN203822156U (en) | Deviation-adjustable rotary drilling device | |
| CN103696706A (en) | Remote-control-while-drilling tapered stabilizer | |
| CN201851036U (en) | Antifriction and resistance-diminishing centralizing short piece | |
| CN204476303U (en) | A kind of drilling assembly | |
| CN104563966A (en) | Automatic paraffin cleaner of electric oil-submersible centrifugal pump | |
| CN203769672U (en) | Swivel bearing type drag reduction tool | |
| CN102828691A (en) | Packed hole deviation control and near-drill-bit decompression compound way-type drilling unit | |
| CN204627410U (en) | A kind of Cylindroid telescopic reducing drilling tool | |
| CN202131991U (en) | Bit pressure stabilizer | |
| US9611846B2 (en) | Flow restrictor for a mud motor | |
| CN201433724Y (en) | Drilling tool stabilizer suitable for gas drilling horizontal well | |
| CN201241633Y (en) | Rotary centralizer | |
| CN104100206A (en) | Drill bit with stabilizer | |
| CN204371124U (en) | Drilling well drag reduction falls turns round stabilizer | |
| CN104832090B (en) | A kind of drilling tool face stabilizer | |
| CN103104201B (en) | Multidirectional adjustment rotary-type pipe sleeve centering device | |
| CN107313733B (en) | Vane type hydraulic oscillator for coiled tubing | |
| CN105863527A (en) | Device capable of improving extending limit of coiled tubing | |
| CN106996274B (en) | A kind of righting structure of anti-sucker rod pumping pump plunger eccentric wear | |
| CN203321361U (en) | Near-bit stabilizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |
|
| CX01 | Expiry of patent term |