CN114635652A - Oil field drilling rod centralizer that shock-absorbing capacity is strong - Google Patents
Oil field drilling rod centralizer that shock-absorbing capacity is strong Download PDFInfo
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- CN114635652A CN114635652A CN202210512287.0A CN202210512287A CN114635652A CN 114635652 A CN114635652 A CN 114635652A CN 202210512287 A CN202210512287 A CN 202210512287A CN 114635652 A CN114635652 A CN 114635652A
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- 238000005553 drilling Methods 0.000 title claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 48
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 19
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 19
- 241001330002 Bambuseae Species 0.000 claims abstract description 19
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 19
- 239000011425 bamboo Substances 0.000 claims abstract description 19
- 238000013016 damping Methods 0.000 claims abstract description 13
- 230000000295 complement effect Effects 0.000 claims abstract 4
- 230000002457 bidirectional effect Effects 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 28
- 210000001503 joint Anatomy 0.000 claims description 19
- 230000035939 shock Effects 0.000 claims description 3
- 238000003032 molecular docking Methods 0.000 abstract description 13
- 230000008859 change Effects 0.000 abstract description 4
- 238000005056 compaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 description 6
- 238000005086 pumping Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 241001023788 Cyttus traversi Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1085—Wear protectors; Blast joints; Hard facing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides an oil field drill rod centralizer with high damping capacity, and relates to the technical field of oil exploration equipment. This oil field drilling rod centralizer that shock-absorbing capacity is strong, including main fixed establishment, right complementary unit and quick replacement mechanism, the main fixed establishment outside is provided with right complementary unit, right complementary unit inside is provided with multiunit quick replacement mechanism, fixed T shape section of thick bamboo lateral wall upper portion sliding connection pull-down tube forms the damping effect through the right linkage slide cartridge that the cooperation removed and the left linkage slide cartridge, alleviates vibrations, improves the righting capacity of this centralizer under the vibration environment, and pull-down tube then with each ball compaction card of group in spacing bell mouth, the ball extends to the protruding portion in the fixed T shape section of thick bamboo through spacing bell mouth and also can restrict T shape docking post in fixed T shape section of thick bamboo, and the piece of righting that T shape docking post corresponds is also fixed along with it to realize the ability of quick dismantlement change.
Description
Technical Field
The invention relates to the technical field of petroleum exploration equipment, in particular to an oil field drill rod centralizer with strong damping capacity.
Background
The drilling rod is a steel pipe with screw thread at the tail part and is used for connecting the surface equipment of a drilling machine and drilling and grinding equipment or a bottom hole device positioned at the bottom end of a drilling well, the drilling rod is used for conveying drilling mud to a drill bit and raising, lowering or rotating the bottom hole device together with the drill bit, and most oil pumping units used in oil field oil extraction drive an oil pumping rod to reciprocate by the up-and-down motion of a heavy lever device (commonly called a horse head machine) to complete the oil pumping action. The sucker rod is formed by connecting a plurality of sections of rods in a threaded manner, the bending of the sucker rod and the pressure friction with an oil pipe caused by the bending are inevitable in the oil extraction process, and the commonly adopted solution is to install a plurality of anti-abrasion devices (centralizers) on the sucker rod, wherein the anti-abrasion devices are made of materials with the hardness lower than that of the sucker rod and the oil pipe, and a smaller gap is reserved between the outer diameter of each anti-abrasion device and the aperture of the oil pipe, so that the anti-abrasion devices can play a role in centralizing the sucker rod and can protect or reduce the abrasion of the sucker rod.
At present, the drilling rod abrasionproof ware that uses is mainly with wearing layer snap-on in the middle part of drilling rod abrasionproof ware main part, and the sucker rod abrasionproof ware of this kind of structure is when using, mainly has following problem: in the oil pumping process, if the sucker rod inclines and is used for a long time, the sucker rod and the centralizer are easily broken due to the fact that the existing centralizer is completely of a rigid structure, in the process of up-and-down movement of the sucker rod, the sucker rod and the centralizer are easily broken due to the fact that the sucker rod moves in a gap between the sucker rod and the centralizer due to vibration.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the oil field drill rod centralizer with strong damping capacity, and solves the problems that the wearing parts of the existing oil pumping drill rod centralizer are difficult to replace after being worn, and the sucker rod and the centralizer are easy to break due to clearance play between the existing oil pumping drill rod centralizer and the sucker rod caused by vibration.
In order to achieve the purpose, the invention is realized by the following technical scheme: an oil field drill rod centralizer with strong shock absorption capacity comprises a main fixing mechanism, a centralizing auxiliary mechanism and a quick replacement mechanism, wherein the centralizing auxiliary mechanism is arranged on the outer side of the main fixing mechanism, and a plurality of groups of quick replacement mechanisms are arranged in the centralizing auxiliary mechanism;
the multiunit quick replacement mechanism all includes a fixed T shape section of thick bamboo, a drop tube, jump ring, spacing bell mouth, ball and release tank, fixed T shape section of thick bamboo lateral wall upper portion sliding connection drop tube, fixed T shape section of thick bamboo lateral wall bottom sliding connection jump ring, upper portion is provided with the spacing bell mouth of the even annular range of multiunit in the fixed T shape section of thick bamboo, the equal sliding connection in spacing bell mouth has a set of ball, drop tube inside wall upper portion is provided with the release tank.
Preferably, the main fixing mechanism comprises a drill rod center sleeve, a left sealing sleeve, a right sealing sleeve, a left limiting sleeve, a right limiting sleeve, a rubber sleeve and an annular contact groove, the left part of the side wall of the drill rod center sleeve is fixedly connected with the left sealing sleeve, and the right part of the side wall of the drill rod center sleeve is fixedly connected with the right sealing sleeve.
Preferably, the auxiliary righting mechanism comprises a left linkage sliding barrel, a right linkage sliding barrel, a spring, a first rotary shaft seat, a first bidirectional rotary arm, a second rotary shaft seat, a second bidirectional rotary arm, a righting block and a T-shaped butt joint column, wherein the left linkage sliding barrel is slidably connected to the left part of the side wall of the central sleeve of the drill rod, the right linkage sliding barrel is slidably connected to the right part of the side wall of the central sleeve of the drill rod, the inner side walls of the right linkage sliding barrel and the left linkage sliding barrel are both slidably connected with the spring, the right part of the side wall of the left linkage sliding barrel is fixedly connected with the first rotary shaft seats which are uniformly and annularly arranged in four groups, the left linkage sliding barrel is rotatably connected with one side ends of the first rotary arms in four groups through the first rotary shaft seats in four groups, the left part of the side wall of the right linkage sliding barrel is fixedly connected with the second rotary shaft seats which are uniformly and annularly arranged in four groups, the right linkage sliding barrel is rotatably connected with one side ends of the second rotary arms in four groups through the second rotary shaft seats in two groups, the other side ends of the four groups of two-way rotating arms are rotatably connected with a group of first two-way rotating arms, the outer side walls of the first two-way rotating arms and the two-way rotating arms are respectively provided with a centering block, and the centers of the inner side walls of the first two-way rotating arms and the two-way rotating arms are fixedly connected with a group of quick replacement mechanisms.
Preferably, the middle left part of the side wall of the drill rod center sleeve is fixedly connected with a left limiting sleeve, and the middle right part of the side wall of the drill rod center sleeve is fixedly connected with a right limiting sleeve.
Preferably, the middle part of the side wall of the central casing of the drill rod is fixedly connected with a rubber casing, and the middle part of the side wall of the rubber casing is provided with an annular contact groove.
Preferably, the left part of the inner side wall of the left linkage sliding barrel is connected with a left sealing sleeve in a sliding manner, the right part of the inner side wall of the left linkage sliding barrel is connected with a left limiting sleeve in a sliding manner, the left part of the inner side wall of the right linkage sliding barrel is connected with a right limiting sleeve in a sliding manner, and the right part of the inner side wall of the right linkage sliding barrel is connected with a right sealing sleeve in a sliding manner.
Preferably, the centers of the inner side walls of the righting blocks are fixedly connected with a group of T-shaped butting columns, and the T-shaped butting columns are slidably connected with a group of fixed T-shaped cylinders.
Preferably, the balls penetrate through the side wall of the fixed T-shaped cylinder through a group of limiting conical holes and extend into the fixed T-shaped cylinder.
The working principle is as follows: the drilling rod belonging to the oil well drilling machine is sleeved in the main fixing mechanism, the drilling rod center sleeve is fixed in the drilling rod and is placed into a drilling well along with the drilling rod to perform drilling work, the centering auxiliary mechanism is matched with the main fixing mechanism to center the drilling rod in an oil pipe, the left linkage sliding barrel and the right linkage sliding barrel respectively slide in two opposite directions of the drilling rod center sleeve, a left sealing sleeve and a left limiting sleeve which are additionally arranged on the drilling rod center sleeve directly limit the sliding distance and the sliding position of the left linkage sliding barrel, a right limiting sleeve and a rubber sleeve directly limit the sliding distance and the sliding position of the right linkage sliding barrel, the left linkage sliding barrel is in butt joint with four groups of first two-way rotating arms which can rotate through four groups of first rotating shaft seats which are additionally arranged in an annular arrangement, the right linkage sliding barrel is in butt joint with four groups of second two-way rotating arms which can rotate through four groups of second rotating shaft seats which are additionally arranged in an annular arrangement, and the four groups of second two-way rotating arms are in butt joint with the first two-way rotating arms, all the first bidirectional rotating arms and the second bidirectional rotating arms are in direct contact with the inner wall of an oil pipe, the position of a drill rod is corrected from four directions, when vibration generated by equipment in the oil pipe is transmitted to the centralizer, the T-shaped butt joint column, the first fixed bidirectional rotating arms and the second bidirectional rotating arms are displaced, the first bidirectional rotating arms and the second bidirectional rotating arms perform relative rotary motion, the first bidirectional rotating arms drive the left linkage sliding barrel to slide along the outer side wall of a central sleeve of the drill rod through rotating the first additionally installed rotating shaft seat, the second bidirectional rotating arms drive the right linkage sliding barrel to slide along the outer side wall of the central sleeve of the drill rod through rotating the second additionally installed rotating shaft seat, springs additionally installed in the left linkage sliding barrel and the right linkage sliding barrel are compressed and deformed along with the sliding displacement of the left linkage sliding barrel and the right linkage sliding barrel and the corresponding limitation of a left sealing sleeve, a left limiting sleeve, a limiting sleeve and a right sealing sleeve, the right linkage slide cartridge and the left linkage slide cartridge that the cooperation removed form the damping effect, alleviate vibrations, improve this centralizer righting ability under the vibrations environment, when this centralizer used for a long time and cause righting the piece high degree wearing and tearing, usable install additional at two-way rotor arm one, two-way rotor arm two quick replacement mechanism carries out quick dismantlement change to righting the piece, stir the pull-down section of thick bamboo that each quick replacement mechanism of group corresponds through manual, make the pull-down section of thick bamboo slide to the terminal direction of fixed T shape section of thick bamboo, the slip of pull-down section of thick bamboo also drives the jump ring compression deformation who installs additional, when the pull-down section of thick bamboo slides, its self release groove who installs additional docks with the spacing bell mouth of multiunit that fixed T shape section of thick bamboo installed additional, pull-down section of thick bamboo also breaks away from the compaction contact with the inside gliding ball of spacing bell mouth, make each group ball can slide inside the spacing bell mouth that corresponds, righting the piece installs additional and insert the affiliated protruding portion of the T shape docking post that fixed T shape section of thick bamboo belongs to this moment also The limitation of the ball protruding parts is removed, the T-shaped docking columns can freely slide in the fixed T-shaped cylinders, the centering blocks and the T-shaped docking columns can be taken out, the centering blocks in a good replacing state are installed, the corresponding T-shaped docking columns are inserted into the fixed T-shaped cylinders, the lower end protruding parts of the T-shaped docking columns extend to the positions below the balls, meanwhile, the held pull-down cylinders are loosened, the pull-down cylinders slide upwards along the fixed T-shaped cylinders by the aid of the deformed and compressed clamp springs, the release grooves are separated from the limiting conical holes, the pull-down cylinders compact and clamp the balls in the limiting conical holes, the balls extend to the protruding parts in the fixed T-shaped cylinders through the limiting conical holes and limit the T-shaped docking columns in the fixed T-shaped cylinders, the centering blocks corresponding to the T-shaped docking columns are fixed accordingly, and accordingly quick disassembling and replacing capabilities are achieved.
The invention provides an oil field drill rod centralizer with strong damping capacity. The method has the following beneficial effects:
1. the invention makes the T-shaped docking post, the fixed bidirectional rotating arm I and the bidirectional rotating arm II displace, and the bidirectional rotating arm I and the bidirectional rotating arm II perform relative rotation movement, the bidirectional rotating arm I drives the left linkage sliding cylinder to slide along the outer side wall of the drill rod central sleeve by rotating the additionally arranged rotating shaft seat I, the bidirectional rotating arm II drives the right linkage sliding cylinder to slide along the outer side wall of the drill rod central sleeve by rotating the additionally arranged rotating shaft seat II, a spring additionally arranged in the left linkage sliding cylinder and the right linkage sliding cylinder generates compression deformation along with the sliding displacement of the left linkage sliding cylinder and the right linkage sliding cylinder and the corresponding limitation of the left sealing sleeve, the left limiting sleeve, the right limiting sleeve and the right sealing sleeve, and the right linkage sliding cylinder and the left linkage sliding cylinder which are matched to move form a damping effect, so that the vibration is relieved, and the righting capacity of the centralizer in a vibration environment is improved.
2. The invention manually stirs the pull-down cylinder corresponding to each group of quick replacement mechanism to enable the pull-down cylinder to slide towards the tail end of the fixed T-shaped cylinder, when the pull-down cylinder slides, the release groove additionally arranged on the pull-down cylinder is butted with a plurality of groups of limiting conical holes additionally arranged on the fixed T-shaped cylinder, the pull-down cylinder also breaks away from the compaction contact with the balls sliding in the limiting conical holes to enable each group of balls to slide in the corresponding limiting conical holes, at the moment, the protrusion part of the T-shaped butt joint column additionally arranged on the centering block and inserted into the fixed T-shaped cylinder also relieves the limitation of the protrusion part of the balls, the T-shaped butt joint column can freely slide in the fixed T-shaped cylinder, namely, the centering block and the T-shaped butt joint column can be taken out, the centering block with good replacement state is installed, simultaneously the held pull-down cylinder is loosened, and the clamp spring compressed by deformation enables the pull-down cylinder to slide upwards along the fixed T-shaped cylinder, the release groove is separated from each group of limiting conical holes immediately, each group of balls are compacted and clamped in the limiting conical holes by the lower pull cylinder, the balls extend to the protruding portion in the fixed T-shaped cylinder through the limiting conical holes and limit the T-shaped butt joint column in the fixed T-shaped cylinder, and the righting block corresponding to the T-shaped butt joint column is fixed accordingly, so that the capacity of quick disassembly and replacement is realized.
Drawings
FIG. 1 is an isometric illustration of the present invention;
FIG. 2 is a schematic perspective view of the present invention in half section;
FIG. 3 is a schematic view of the front and rear equiangular axes of the present invention;
FIG. 4 is an isometric illustration of the quick-change mechanism of the present invention;
fig. 5 is a schematic half-section view of a quick-change mechanism of the present invention.
Wherein, 1, main fixing mechanism; 2. a righting auxiliary mechanism; 3. a quick replacement mechanism; 101. a drill rod central sleeve; 102. a left sealing sleeve; 103. a right sealing sleeve; 104. a left stop collar; 105. a right stop collar; 106. a rubber sleeve; 107. an annular contact groove; 201. a left linkage slide cylinder; 202. a right linkage sliding cylinder; 203. a spring; 204. a first rotating shaft seat; 205. a first bidirectional rotating arm; 206. a second rotating shaft seat; 207. a second bidirectional rotating arm; 208. a righting block; 209. a T-shaped docking post; 301. fixing the T-shaped cylinder; 302. pulling down the cylinder; 303. a clamp spring; 304. limiting the conical hole; 305. a ball bearing; 306. releasing the groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment is as follows:
as shown in fig. 1-5, an embodiment of the present invention provides an oilfield drill rod centralizer with strong shock absorption capability, including a main fixing mechanism 1, a centralizing auxiliary mechanism 2 and a quick replacement mechanism 3, wherein the centralizing auxiliary mechanism 2 is arranged outside the main fixing mechanism 1, and a plurality of groups of quick replacement mechanisms 3 are arranged inside the centralizing auxiliary mechanism 2;
the multiple groups of quick change mechanisms 3 respectively comprise a fixed T-shaped cylinder 301, a lower pull cylinder 302, a clamp spring 303, limiting tapered holes 304, balls 305 and a release groove 306, the upper part of the side wall of the fixed T-shaped cylinder 301 is connected with the lower pull cylinder 302 in a sliding way, the bottom of the side wall of the fixed T-shaped cylinder 301 is connected with the clamp spring 303 in a sliding way, the middle upper part of the fixed T-shaped cylinder 301 is provided with multiple groups of limiting tapered holes 304 which are uniformly and annularly arranged, the insides of the limiting tapered holes 304 are respectively connected with one group of balls 305 in a sliding way, the upper part of the inner side wall of the lower pull cylinder 302 is provided with the release groove 306, the balls 305 penetrate through the side wall of the fixed T-shaped cylinder 301 through one group of limiting tapered holes 304 and extend to the inside of the fixed T-shaped cylinder 301, when the centralizer is used for a long time to cause high-degree abrasion of the centralizing block 208, the quick change mechanisms 3 additionally arranged on the two-way rotating arms 205 and two-way rotating arms 207 can be used for quickly disassembling and changing the centralizing block 208, each group of the corresponding lower pull cylinder 302 can be manually shifted, the pull-down cylinder 302 slides towards the tail end of the fixed T-shaped cylinder 301, the slide of the pull-down cylinder 302 also drives the additionally arranged snap spring 303 to compress and deform, when the pull-down cylinder 302 slides, the release groove 306 additionally arranged on the pull-down cylinder 302 is butted with a plurality of groups of limit tapered holes 304 additionally arranged on the fixed T-shaped cylinder 301, the pull-down cylinder 302 also breaks away from the compaction contact with the balls 305 sliding in the limit tapered holes 304, each group of balls 305 can slide in the corresponding limit tapered holes 304, at the moment, the protrusion part of the T-shaped butt column 209 additionally arranged on the centering block 208 and inserted in the fixed T-shaped cylinder 301 also removes the limitation of the protrusion part of the balls 305, the T-shaped butt column 209 can freely slide in the fixed T-shaped cylinder 301, the centering block 208 and the T-shaped butt column 209 can be taken out, the centering block 208 with a good replacing state can be installed, and the corresponding T-shaped butt column 209 is inserted in the fixed T-shaped cylinder 301, the lower end protruding portion of the T-shaped butt joint column 209 extends to a position below the ball 305, meanwhile, the held pull-down cylinder 302 is loosened, the deformation and compression clamp spring 303 enables the pull-down cylinder 302 to slide upwards along the fixed T-shaped cylinder 301, the release groove 306 is separated from each group of limiting conical holes 304 immediately, the pull-down cylinder 302 compacts and clamps each group of ball 305 in the limiting conical holes 304, the ball 305 extends to the protruding portion in the fixed T-shaped cylinder 301 through the limiting conical holes 304 and limits the T-shaped butt joint column 209 in the fixed T-shaped cylinder 301, and the righting block 208 corresponding to the T-shaped butt joint column 209 is fixed accordingly, so that the rapid dismounting and replacing capabilities are achieved.
The main fixing mechanism 1 comprises a drill rod center sleeve 101, a left sealing sleeve 102, a right sealing sleeve 103, a left limiting sleeve 104, a right limiting sleeve 105, a rubber sleeve 106 and an annular contact groove 107, the left part of the side wall of the drill rod center sleeve 101 is fixedly connected with the left sealing sleeve 102, the right part of the side wall of the drill rod center sleeve 101 is fixedly connected with the right sealing sleeve 103, the left part of the side wall of the drill rod center sleeve 101 is fixedly connected with the left limiting sleeve 104, the right part of the side wall of the drill rod center sleeve 101 is fixedly connected with the right limiting sleeve 105, the middle part of the side wall of the drill rod center sleeve 101 is fixedly connected with the rubber sleeve 106, the annular contact groove 107 is arranged in the middle part of the side wall of the rubber sleeve 106, a drill rod belonging to an oil well drilling machine is sleeved inside the main fixing mechanism 1, the drill rod center sleeve 101 is fixed in a drill rod and is lowered into a well to perform drilling work along with the drill rod, the left sliding distance and the position of the left sliding sleeve 201 are directly limited by the left sealing sleeve 102 and the left limiting sleeve 104 additionally arranged on the drill rod center sleeve 101, the right limiting sleeve 105 and the rubber sleeve 106 directly limit the sliding distance and position of the right linkage sliding cylinder 202.
The righting auxiliary mechanism 2 comprises a left linkage sliding barrel 201, a right linkage sliding barrel 202, a spring 203, a first rotary shaft seat 204, a first bidirectional rotary arm 205, a second rotary shaft seat 206, a second bidirectional rotary arm 207, a righting block 208 and a T-shaped butt joint column 209, wherein the left linkage sliding barrel 201 is connected to the left part of the side wall of the drill rod center sleeve 101 in a sliding manner, the right linkage sliding barrel 202 is connected to the right part of the side wall of the drill rod center sleeve 101 in a sliding manner, the inner side walls of the right linkage sliding barrel 202 and the left linkage sliding barrel 201 are both connected with the spring 203 in a sliding manner, the right part of the side wall of the left linkage sliding barrel 201 is fixedly connected with the first rotary shaft seats 204 which are uniformly and annularly arranged in four groups, the left linkage sliding barrel 201 is rotatably connected with one side ends of the first bidirectional rotary arms 205 in four groups through the first rotary shaft seats 204 in four groups, the left part of the side wall of the right linkage sliding barrel 202 is fixedly connected with the second rotary shafts 206 which are uniformly and annularly arranged in four groups, the right linkage sliding barrel 202 is rotatably connected with one side end of the second bidirectional rotary arms 207 through the second rotary shaft seats 206 in four groups, the other side ends of the four groups of bidirectional rotating arms two 207 are rotatably connected with a group of bidirectional rotating arms one 205, the outer side walls of the bidirectional rotating arms one 205 and two 207 are respectively provided with a righting block 208, the centers of the inner side walls of the bidirectional rotating arms one 205 and two 207 are respectively fixedly connected with a group of quick replacement mechanisms 3, the left part of the inner side wall of the left linkage sliding barrel 201 is slidably connected with the left sealing sleeve 102, the right part of the inner side wall of the left linkage sliding barrel 201 is slidably connected with the left limiting sleeve 104, the left part of the inner side wall of the right linkage sliding barrel 202 is slidably connected with the right limiting sleeve 105, the right part of the inner side wall of the right linkage sliding barrel 202 is slidably connected with the right sealing sleeve 103, the center of the inner side wall of the righting block 208 is respectively fixedly connected with a group of T-shaped docking posts 209, the T-shaped docking posts 209 are respectively slidably connected with a group of fixed T-shaped barrels 301, the righting auxiliary mechanism 2 is matched with the main fixing mechanism 1 to righting the drill rod in the oil pipe, the left linkage sliding barrel 201 is docked with the four groups of bidirectional rotating arms one 205 which can rotate through the four groups of rotating shaft seats which are annularly arranged and additionally arranged, the right linkage sliding cylinder 202 is in butt joint with four rotatable two-way rotating arms 207 through four rotating shaft seat two 206 which are arranged in an annular arrangement and are in butt joint, the four two-way rotating arms 207 and the two-way rotating arms 205 are also in rotating butt joint, all the two-way rotating arms 205 and the centering blocks 208 which are additionally arranged on the two-way rotating arms 207 are in direct contact with the inner wall of an oil pipe, the position of a drill rod is corrected from four directions, when vibration generated by equipment in the oil pipe is transmitted to the centering device, the T-shaped butt joint column 209, the fixed two-way rotating arms 205 and the two-way rotating arms 207 are displaced, the two-way rotating arms 205 and the two-way rotating arms 207 perform relative rotating motion, the two-way rotating arms 205 drive the left linkage sliding cylinder 201 to slide along the outer side wall of the drill rod central sleeve 101 through rotating the additionally arranged rotating shaft seat one 204, the two-way rotating arms 207 drive the right linkage sliding cylinder 202 to slide along the outer side wall of the drill rod central sleeve 101 through rotating the additionally arranged rotating shaft seat two 206, the springs 203 additionally arranged inside the left linkage sliding barrel 201 and the right linkage sliding barrel 202 generate compression deformation along with the sliding displacement of the left linkage sliding barrel 201 and the right linkage sliding barrel 202 and the corresponding limitation of the left sealing sleeve 102, the left limiting sleeve 104, the right limiting sleeve 105 and the right sealing sleeve 103, and the right linkage sliding barrel 202 and the left linkage sliding barrel 201 which move in a matched mode form a damping effect, so that vibration is relieved, and the centering capacity of the centralizer in a vibration environment is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an oil field drilling rod centralizer that shock-absorbing capacity is strong, includes main fixed establishment (1), rights complementary unit (2) and quick replacement mechanism (3), its characterized in that: a centering auxiliary mechanism (2) is arranged on the outer side of the main fixing mechanism (1), and a plurality of groups of quick replacement mechanisms (3) are arranged in the centering auxiliary mechanism (2);
the multiunit quick replacement mechanism (3) all include a fixed T shape section of thick bamboo (301), down draw tube (302), jump ring (303), spacing bell mouth (304), ball (305) and relief groove (306), a fixed T shape section of thick bamboo (301) lateral wall upper portion sliding connection down draw tube (302), a fixed T shape section of thick bamboo (301) lateral wall bottom sliding connection jump ring (303), upper portion is provided with spacing bell mouth (304) that the even annular of multiunit was arranged in a fixed T shape section of thick bamboo (301), inside equal sliding connection of spacing bell mouth (304) has a set of ball (305), down draw tube (302) inside wall upper portion is provided with relief groove (306).
2. The oilfield drillpipe centralizer with high damping capacity according to claim 1, wherein the oilfield drillpipe centralizer comprises: the main fixing mechanism (1) comprises a drill rod center sleeve (101), a left sealing sleeve (102), a right sealing sleeve (103), a left limiting sleeve (104), a right limiting sleeve (105), a rubber sleeve (106) and an annular contact groove (107), the left part of the side wall of the drill rod center sleeve (101) is fixedly connected with the left sealing sleeve (102), and the right part of the side wall of the drill rod center sleeve (101) is fixedly connected with the right sealing sleeve (103).
3. The oilfield drill pipe centralizer of claim 1, further comprising: the auxiliary righting mechanism (2) comprises a left linkage sliding barrel (201), a right linkage sliding barrel (202), a spring (203), a first rotating shaft seat (204), a first bidirectional rotating arm (205), a second rotating shaft seat (206), a second bidirectional rotating arm (207), a righting block (208) and a T-shaped butt joint column (209), wherein the left linkage sliding barrel (201) is connected to the left part of the side wall of the drill rod center sleeve (101) in a sliding manner, the right linkage sliding barrel (202) is connected to the right part of the side wall of the drill rod center sleeve (101) in a sliding manner, the springs (203) are connected to the inner side walls of the right linkage sliding barrel (202) and the left linkage sliding barrel (201) in a sliding manner, the right part of the side wall of the left linkage sliding barrel (201) is fixedly connected with four groups of first rotating shaft seats (204) which are uniformly and annularly arranged, and the left linkage sliding barrel (201) is connected to one side ends of the four groups of the first bidirectional rotating arms (205) in a rotating manner through the four groups of the first rotating shaft seats (204), the left part of the side wall of the right linkage sliding cylinder (202) is fixedly connected with four groups of rotating shaft seat II (206) which are uniformly and annularly arranged, the right linkage sliding cylinder (202) is rotatably connected with one side end of four groups of two-way rotating arms II (207) through the four groups of rotating shaft seat II (206), the other side end of the four groups of two-way rotating arms II (207) is rotatably connected with one group of two-way rotating arms I (205), the outer side walls of the two-way rotating arms I (205) and the two-way rotating arms II (207) are respectively provided with a centering block (208), and the centers of the inner side walls of the two-way rotating arms I (205) and the two-way rotating arms II (207) are respectively and fixedly connected with a group of quick replacement mechanism (3).
4. The oilfield drill pipe centralizer of claim 2, wherein the shock absorbing capacity is as follows: the middle left part of the side wall of the drill rod center sleeve (101) is fixedly connected with a left limiting sleeve (104), and the middle right part of the side wall of the drill rod center sleeve (101) is fixedly connected with a right limiting sleeve (105).
5. The oilfield drillpipe centralizer with high damping capacity according to claim 2, wherein the oilfield drillpipe centralizer comprises: the middle part of the side wall of the drill rod center sleeve (101) is fixedly connected with a rubber sleeve (106), and the middle part of the side wall of the rubber sleeve (106) is provided with an annular contact groove (107).
6. The oilfield drillpipe centralizer with high damping capacity according to claim 3, wherein the oilfield drillpipe centralizer comprises: the left sliding sleeve is connected with a left sealing sleeve (102) in a sliding mode through the left portion of the inner side wall of the left linkage sliding barrel (201), the right sliding sleeve is connected with a left limiting sleeve (104) in a sliding mode through the right portion of the inner side wall of the left linkage sliding barrel (201), the right sliding sleeve is connected with a right limiting sleeve (105) in a sliding mode through the left portion of the inner side wall of the right linkage sliding barrel (202), and the right sealing sleeve (103) is connected in a sliding mode through the right portion of the inner side wall of the right linkage sliding barrel (202).
7. The oilfield drillpipe centralizer with high damping capacity according to claim 3, wherein the oilfield drillpipe centralizer comprises: the center of the inner side wall of the centering block (208) is fixedly connected with a group of T-shaped butting columns (209), and the T-shaped butting columns (209) are slidably connected with a group of fixed T-shaped cylinders (301).
8. The oilfield drillpipe centralizer with high damping capacity according to claim 1, wherein the oilfield drillpipe centralizer comprises: the balls (305) penetrate through the side wall of the fixed T-shaped cylinder (301) through a group of limiting conical holes (304) and extend into the fixed T-shaped cylinder (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210512287.0A CN114635652A (en) | 2022-05-12 | 2022-05-12 | Oil field drilling rod centralizer that shock-absorbing capacity is strong |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210512287.0A CN114635652A (en) | 2022-05-12 | 2022-05-12 | Oil field drilling rod centralizer that shock-absorbing capacity is strong |
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| Publication Number | Publication Date |
|---|---|
| CN114635652A true CN114635652A (en) | 2022-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210512287.0A Pending CN114635652A (en) | 2022-05-12 | 2022-05-12 | Oil field drilling rod centralizer that shock-absorbing capacity is strong |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117888834A (en) * | 2024-03-18 | 2024-04-16 | 吉林省大多天盛金属陶瓷技术有限公司 | Oil rod anti-corrosion centralizer with side arm body adjusting function and method |
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2022
- 2022-05-12 CN CN202210512287.0A patent/CN114635652A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117888834A (en) * | 2024-03-18 | 2024-04-16 | 吉林省大多天盛金属陶瓷技术有限公司 | Oil rod anti-corrosion centralizer with side arm body adjusting function and method |
| CN117888834B (en) * | 2024-03-18 | 2024-05-10 | 吉林省大多天盛金属陶瓷技术有限公司 | Oil rod anti-corrosion centralizer with side arm body adjusting function and method |
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Application publication date: 20220617 |