CN201184142Y - Gas drilling drag reduction vibration damping break-proof tools - Google Patents
Gas drilling drag reduction vibration damping break-proof tools Download PDFInfo
- Publication number
- CN201184142Y CN201184142Y CNU2008200619647U CN200820061964U CN201184142Y CN 201184142 Y CN201184142 Y CN 201184142Y CN U2008200619647 U CNU2008200619647 U CN U2008200619647U CN 200820061964 U CN200820061964 U CN 200820061964U CN 201184142 Y CN201184142 Y CN 201184142Y
- Authority
- CN
- China
- Prior art keywords
- bush
- ing
- bearing
- vibration
- cover
- 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 - Fee Related
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to an air drilling drag-reduction and vibration-reduction anti-breaking tool, which is suitable for being mounted in the position of a drill collar during the air drilling with strong transverse and torsional vibration, high frictional resistance, erosion and easy failure. The technical proposal is that upper and lower connector bodies are in threaded connection with and positioned by shaft shoulders; radial sliding bearing movable sleeves are mounted on the outer surfaces of the connector bodies and matched with radial sliding bearing static sleeves, and self-lubricating seal washers are placed between the radial sliding bearing static sleeves and the bodies; a chamber formed by the bodies, the self-lubricating seal washers, the radial sliding bearing static sleeves and the radial sliding bearing movable sleeves are filled with graphite; a layer of vibration-reduction rubber sleeve is blow-molded or assembled on the inner surface of a collar housing, the outer surface of the collar housing is cast or rolled with a layer of hard alloy; and a centralizing band is placed on the surface of the collar housing. The air drilling drag-reduction and vibration-reduction anti-breaking tool can improve the security and the service life of the air drilling lower part drilling tool, and reduce the torque loss of drilling string transmission; in addition, the structure is simple, the cost is low, and the air drilling drag-reduction and vibration-reduction anti-breaking tool can be used in air drilling of oil and natural gas fields.
Description
Technical field
The utility model relates to a kind of gas drilling drag reduction vibration reduction anti-off tool that is used for oil gas field, be particularly suitable for being placed in the drill collar place have tyrannical to twisting vibration, high frictional resistance, erosion, the gas drilling that easily takes place to lose efficacy in.
Background technology
Gas drilling can significantly improve rate of penetration with it and effectively find and advantage such as protection oil-gas Layer and obtain fast development.Gas drilling was explored at first eighties of last century fifties; be subjected to the restriction of supporting technology and equipment; this technology-Du lies on the table; until the nineties in last century; the gas drilling technology just really begins starting and development; although its development time is short, has become and found with the protection oil-gas Layer, significantly to improve rate of penetration and administer one of most effectual way of problem such as pernicious leakage.This new technology has in use also exposed the technical problem that many assistant officers need solve simultaneously, as: problems such as drilling tool failure, stratum water outlet, the borehole wall collapse, hole deviation is wayward, wherein the drillling tool twisting off problem is comparatively outstanding.
The gas drilling drilling tool failure mainly is distributed on drill collar box screw thread place and drilling rod and heavy weight drill pipe box screw thread place and the body.By a large amount of Field Research, theoretical calculate and think that the main cause of gas drilling drilling tool failure is significantly to vibrate, cavitate and corrode.And special find cavitation erosion be objective reality and be difficult to alleviate, corrosion is slighter, but under the excitation of the heavily stressed vibration of high frequency, the effect of corrosion and cavitation erosion can be amplified; Three's coupling has caused the unusual timeliness of drilling tool.In addition, the vibration of finding gas drilling according to field measurement is shaken and torsional oscillation is a principal character with horizontal, and the excitation of the two makes mild relatively longitudinal vibration originally become comparatively violent again.Losing efficacy with drill collar place box is research object, has designed drill collar drag reduction vibration reduction anti-off tool.This instrument can significantly reduce drill collar place frictional resistance and vibration amplitude, effectively reduces drill collar flexural deformation ratio, thereby can prevent effectively that the gas drilling drill collar lost efficacy.
Summary of the invention
The purpose of this utility model is: in order effectively to prevent gas drilling frictional resistance and the vibration destruction to drilling tool, reduce loss of machine of torque, reduce vibration amplitude, reduce vibration and the frictional resistance incentive action to corrosion and cavitation erosion, the spy provides a kind of gas drilling drag reduction vibration reduction anti-off tool.
In order to achieve the above object, the technical scheme that this technical problem that solves the utility model adopts is: a kind of gas drilling drag reduction vibration reduction anti-off tool, by joint body, self-lubricating gasket seal, vibration isolation rubber cover, box cupling shell, the moving cover of bush(ing) bearing, the quiet cover of bush(ing) bearing and bush(ing) bearing axle bush are formed up and down, its architectural feature is: joint body is located by the shaft shoulder by being threaded up and down; The moving cover of bush(ing) bearing is installed on the joint body external surface, and the quiet cover of bush(ing) bearing cooperates with it, quiet cover of bush(ing) bearing and placement self-lubricating gasket seal between the joint body up and down; Fill graphite in the chamber that forms between joint body and self-lubricating gasket seal, the quiet cover of bush(ing) bearing, the moving cover of bush(ing) bearing up and down; Blowing or assembling one deck vibration isolation rubber cover on the inner surface of box cupling shell are poured into a mould on the box cupling outer surface of outer cover or rolling one deck friction factor is lower, temperature tolerance better, the abrasionproof effect is better and the high carbide alloy of side direction supporting capacity; Set upright band and be evenly arranged in the box cupling case surface.The thickness of vibration isolation rubber cover is 3～6mm.Rolling one deck bush(ing) bearing axle bush between moving cover of bush(ing) bearing and the quiet cover of bush(ing) bearing.The box cupling shell is a tubular, its smooth outer surface, and the box cupling shell is set upright band, sets upright belt surface cast or rolling one deck carbide alloy, and its carbide alloy is a kind of of W-Co kind, tungsten titanium cobalt class, tungsten titanium cobalt tantalum class.The structure of setting upright band is spiral, and the axial plane angle [alpha] is between 15 °～45 °; The two ends of setting upright band are the inclined-plane pattern, and slope angle is between 20 °～30 °.The matrix of self-lubricating gasket seal is a metallic gasket, and spacer thickness is evenly equipped with 15～40 circular holes on the pad between 2～5mm, is used to fill the graphite after the compacting.
The beneficial effect that the utlity model has is: (1) is sliding bearing owing to what install, and it is little to take up space, and can guarantee the safety of box cupling; (2) the utility model blowing or assembled one deck vibration isolation rubber cover between bush(ing) bearing and box cupling shell, it is good to have a damping property, reduces lower drilling tool drag losses and Oscillation Amplitude, improves the effect of lower drilling tool safety of structure and drilling ability; (3) the self-lubricating pad had both played the axial location effect, also played lubricated and sealing function, reduced the friction between quiet cover of journal bearing and the body; The graphite of filling in the graphite storage chamber both can lubricate journal bearing sound cover, also can provide lubricated and sealed source for the self-lubricating sealing ring; (4) the utility model on the box cupling external surface, pour into a mould or rolling one deck friction factor is lower, temperature tolerance better, the abrasionproof effect better and the higher carbide alloy of side direction supporting capacity, help reducing the wearing and tearing of axial vibration, reduced the loss of machine of torque that drill string transmits the borehole wall or sleeve pipe; (5) the utility model external diameter is designed to smooth type or is with spiral to set upright banding pattern, does not influence gas drilling and takes the rock effect or influence less; (6) the utility model is simple in structure, cost is low, can satisfy the needs that reduce bottomhole assembly strong vibration and high pulling torque loss in the gas drilling process, and effectively reduces the drill collar inefficacy by the drag reduction damping effect.
Description of drawings
Fig. 1 is the schematic diagram of the utility model gas drilling drag reduction vibration reduction anti-off tool.
Fig. 2 is the sectional view that does not have the box cupling shell 4 of setting upright band in this anti-off tool.
Fig. 3 is four generalized sections of setting upright the box cupling shell 4 of band in this anti-off tool.
Fig. 4 is that the spiral of this anti-off tool is set upright the structural representation with 9.
Fig. 5 is the structural representation of the self-lubricating gasket seal of this anti-off tool.
Among the figure: 1. lower contact body, 2. self-lubricating gasket seal, 3. vibration isolation rubber cover, 4. box cupling shell, the 5. moving cover of bush(ing) bearing, the quiet cover of 6 bush(ing) bearings, 7. top connection body, 8. the bush(ing) bearing axle bush is 9. set upright band, 10 graphite storage chamber, the graphite-filled hole of 11 self-lubricating gasket seals.
The specific embodiment
According to shown in Figure 1, lower contact body 1 and top connection body 7 are located by the shaft shoulder by thread connection; The moving cover 5 of bush(ing) bearing is installed on the joint body external surface, and the quiet cover 6 of bush(ing) bearing cooperates with it, and self-lubricating gasket seal 2 is placed at the two ends up and down of the quiet cover 6 of bush(ing) bearing, constitutes interference fits with top connection body 7 and lower contact body 1; Blowing or assembling one deck vibration isolation rubber cover 3 on the inner surface of box cupling shell 4 are poured into a mould on box cupling shell 4 external surfaces or rolling one deck friction factor is lower, temperature tolerance better, the abrasionproof effect is better and the higher carbide alloy of side direction supporting capacity.
According to shown in Figure 2, the box cupling shell 4 of this kind centralizer 9 is a tubular, its smooth outer surface.
According to Fig. 3, shown in Figure 4, set upright and be with 9 to be evenly arranged in box cupling shell 4 surfaces, its structure is spiral, with the axial plane angle [alpha] be 15 °～45 °, make drill string and well concentric, with one heart annular velocity is even, strengthens large rock-carrying ability.
Claims (6)
1. gas drilling drag reduction vibration reduction anti-off tool, by joint body, vibration isolation rubber cover, box cupling shell, the moving cover of bush(ing) bearing, the quiet cover of bush(ing) bearing, bush(ing) bearing axle bush and self-lubricating gasket seal are formed up and down, it is characterized in that: top connection body (7) and lower contact body (1) are located by the shaft shoulder by thread connection; The moving cover of bush(ing) bearing (5) is installed on the joint body external surface, and the quiet cover of bush(ing) bearing (6) cooperates with it, places self-lubricating gasket seal (2) between quiet cover of bush(ing) bearing (6) and top connection body (7) and the lower contact body (1); Fill graphite in the chamber (10) that forms between top connection body (7) and lower contact body (1) and self-lubricating gasket seal (2), the quiet cover of bush(ing) bearing (6), the moving cover of bush(ing) bearing (5); Blowing or assembling one deck vibration isolation rubber cover (3) on the inner surface of box cupling shell (4), cast or rolling one deck carbide alloy are set upright the surface that band (9) is evenly arranged in box cupling shell (4) on box cupling shell (4) external surface.
2. gas drilling drag reduction vibration reduction anti-off tool according to claim 1 is characterized in that: the thickness of vibration isolation rubber cover (3) is 3～6mm.
3. gas drilling drag reduction vibration reduction anti-off tool according to claim 1 is characterized in that: rolling one deck bush(ing) bearing axle bush (8) between moving cover of bush(ing) bearing (5) and the quiet cover of bush(ing) bearing (6).
4. gas drilling drag reduction vibration reduction anti-off tool according to claim 1 is characterized in that: box cupling shell (4) is a tubular, its smooth outer surface; Box cupling shell (4) is set upright band (9), sets upright band (9) surface casting or rolling one deck carbide alloy, and its carbide alloy is a kind of of W-Co kind, tungsten titanium cobalt class, tungsten titanium cobalt tantalum class.
5. the band of setting upright according to claim 4 is characterized in that: the structure of setting upright band (9) is spiral, and the axial plane angle [alpha] is between 15 °～45 °, and that sets upright band (9) two ends is designed to the inclined-plane pattern, and slope angle is between 20 °～30 °.
6. gas drilling drag reduction vibration reduction anti-off tool according to claim 1 is characterized in that: the matrix of self-lubricating gasket seal (2) is a metallic gasket, and spacer thickness is evenly equipped with 15～40 circular holes on the pad between 2～5mm, is used to fill the graphite after the compacting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200619647U CN201184142Y (en) | 2008-01-23 | 2008-01-23 | Gas drilling drag reduction vibration damping break-proof tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200619647U CN201184142Y (en) | 2008-01-23 | 2008-01-23 | Gas drilling drag reduction vibration damping break-proof tools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201184142Y true CN201184142Y (en) | 2009-01-21 |
Family
ID=40271882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200619647U Expired - Fee Related CN201184142Y (en) | 2008-01-23 | 2008-01-23 | Gas drilling drag reduction vibration damping break-proof tools |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201184142Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775003A (en) * | 2014-01-27 | 2014-05-07 | 中国石油大学(华东) | Device capable of reducing gas drilling friction |
| CN112127800A (en) * | 2020-09-17 | 2020-12-25 | 西南石油大学 | Casing device for reducing casing shearing deformation and using method thereof |
| CN112761546A (en) * | 2021-02-04 | 2021-05-07 | 西南石油大学 | Drag-reducing and wear-resisting drill string protector |
-
2008
- 2008-01-23 CN CNU2008200619647U patent/CN201184142Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775003A (en) * | 2014-01-27 | 2014-05-07 | 中国石油大学(华东) | Device capable of reducing gas drilling friction |
| CN103775003B (en) * | 2014-01-27 | 2015-12-09 | 中国石油大学(华东) | A kind ofly reduce the device that gas drilling creeps into frictional resistance |
| CN112127800A (en) * | 2020-09-17 | 2020-12-25 | 西南石油大学 | Casing device for reducing casing shearing deformation and using method thereof |
| CN112127800B (en) * | 2020-09-17 | 2022-04-08 | 西南石油大学 | Casing device for reducing casing shearing deformation and using method thereof |
| CN112761546A (en) * | 2021-02-04 | 2021-05-07 | 西南石油大学 | Drag-reducing and wear-resisting drill string protector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204571831U (en) | A kind of helicoid hydraulic motor seal transmission shaft | |
| CN204113168U (en) | A kind of high temperature resistant vibratory tool for horizontal well | |
| CN101260788B (en) | Superdeep well great displacement high performance boring tool protector for well | |
| CN202483507U (en) | High-pressure sealing rubber barrel assembly | |
| CN102913165B (en) | Well-drilling downhole turbine-drive while-drilling vibrator | |
| CN201184142Y (en) | Gas drilling drag reduction vibration damping break-proof tools | |
| CN105818930B (en) | A kind of soft just arm single point mooring unit of improved damp type | |
| CN101265786B (en) | Gas drilling rock carrying tool | |
| CN108331527A (en) | A kind of down-hole motor driving generates the drilling speed device of impact vibration effect | |
| CN201339448Y (en) | Rubber-type casing wear prevention tool | |
| CN207701078U (en) | A kind of pulse screw rod | |
| CN206280430U (en) | Two-directional composite damper | |
| CN201246114Y (en) | Anti-friction and twist well drilling collar | |
| CN205714020U (en) | A kind of reducing centralizer | |
| CN202596585U (en) | Energy-storage protection tool for mechanical drilling tool | |
| CN201502339U (en) | Split composite liner-typed torque-reduction wear-prevention tool | |
| CN106593308A (en) | Near-bit three-dimensional jar | |
| CN206846104U (en) | A kind of wear-resisting straight tube that can be eliminated welding and influence | |
| CN202325296U (en) | Rotary stabilizer with shock absorption effect | |
| CN208502682U (en) | A kind of bearing-type antifriction connector | |
| CN101644144B (en) | Transverse shock absorber applicable in gas drilling | |
| CN201083088Y (en) | Bushing abrasion-reducing equipment | |
| CN201187263Y (en) | Horizontal well stationary type pipe column centralizer | |
| CN201106415Y (en) | Canula abrasion protection pipe nipple | |
| CN201232527Y (en) | Transversal shock-absorber suitable for gas drilling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090121 Termination date: 20120123 |