CN116241193A - Corrosion-resistant sucker rod - Google Patents
Corrosion-resistant sucker rod Download PDFInfo
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- CN116241193A CN116241193A CN202310415865.3A CN202310415865A CN116241193A CN 116241193 A CN116241193 A CN 116241193A CN 202310415865 A CN202310415865 A CN 202310415865A CN 116241193 A CN116241193 A CN 116241193A
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- pipe body
- main pipe
- sucker rod
- wall
- corrosion resistant
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- 230000007797 corrosion Effects 0.000 title claims abstract description 30
- 238000005260 corrosion Methods 0.000 title claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 239000010779 crude oil Substances 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 19
- 238000001914 filtration Methods 0.000 claims abstract description 17
- 238000002955 isolation Methods 0.000 claims abstract description 12
- 238000005192 partition Methods 0.000 claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 238000009413 insulation Methods 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims abstract 5
- 238000007789 sealing Methods 0.000 claims description 30
- 239000003921 oil Substances 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 9
- 230000006978 adaptation Effects 0.000 claims 1
- 239000003792 electrolyte Substances 0.000 abstract description 5
- 150000001768 cations Chemical class 0.000 abstract description 4
- 238000006056 electrooxidation reaction Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 description 13
- 239000003208 petroleum Substances 0.000 description 7
- 238000005086 pumping Methods 0.000 description 7
- 239000007787 solid Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 229910001339 C alloy Inorganic materials 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920003217 poly(methylsilsesquioxane) Polymers 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 208000031872 Body Remains Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- 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
- E21B17/006—Accessories for drilling pipes, e.g. cleaners
-
- 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
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
-
- 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
- E21B17/1071—Wear protectors; Centralising devices, e.g. stabilisers specially adapted for pump rods, e.g. sucker rods
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
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- 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)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention discloses a corrosion-resistant sucker rod, which relates to the technical field of sucker pipes and comprises a main pipe body and an auxiliary pipe body, wherein electrode isolation mechanisms are arranged in the main pipe body and the auxiliary pipe body, the bottoms of the main pipe body are fixedly communicated with crude oil separation and filtration mechanisms, a separation pipe splicing mechanism is arranged in the main pipe body and the auxiliary pipe body, the electrode isolation mechanism comprises two groups of positioning plates, a partition plate is embedded between the outer surface walls of each two of the positioning plates, inner containers are arranged between the outer surface walls of the partition plates, heat insulation coatings are wrapped on the inner surface walls of the partition plates, the separation pipe splicing mechanism comprises two groups of slots, permanent magnetic blocks are fixedly arranged at the bottoms of the inner walls of the slots, and the generation of metal cations is blocked by utilizing an electrochemical composition principle, so that an aqueous electrolyte cannot combine with required electrons, further cannot form the action of a primary battery, the generation of electrochemical corrosion is inhibited, and the service life of the long pipe body is prolonged.
Description
Technical Field
The invention relates to the technical field of sucker rods, in particular to a corrosion-resistant sucker rod.
Background
The pumping rod is an elongated rod piece of a pumping well, the upper part of the pumping rod is connected with a polished rod, the lower part of the pumping rod is connected with a pumping pump to play a role in transmitting power, the single length of the pumping rod is 7.62 or 8 meters and 9.14 meters, the material is generally low-carbon alloy steel, the low-carbon alloy steel is subjected to thermal refining, the low-carbon alloy steel is connected with one internal thread hoop in an oil pipe until the low-carbon alloy steel extends to a piston at an underground oil layer, and oil is pumped by reciprocating motion.
In the prior art, for example, chinese patent application No.: CN 111963074B discloses a corrosion-resistant sucker rod, including ejector pin, end pipe and coupling mechanism, the ejector pin includes mobile jib portion and vice pole portion, the coaxial heart of vice pole portion sets up the lower extreme at mobile jib portion, and vice pole portion and mobile jib portion integrated into one piece, the end pipe includes connecting portion and honeycomb duct, the connecting portion is installed in the lower extreme of vice pole portion, and connecting portion and vice pole portion rotate to be connected, the honeycomb duct is with the axle center setting at the lower extreme of connecting portion, and honeycomb duct and connecting portion integrated into one piece, and the convenient to use can select ejector pin, end pipe and coupling mechanism of suitable quantity according to actual need's size, then connects it steadily in proper order through coupling mechanism can use, and the user can link up the lower extreme of end pipe and the upper end of ejector pin steadily through the arc of relative lock in-process, carries out the spacing through the cooperation groove on the arc to the first spacing ring on the mobile jib portion and the second spacing ring on the honeycomb duct.
However, the above patent has the following disadvantages:
the sucker rod is mainly used for exploiting crude oil in an underground oil field, the crude oil is conveyed to the ground by being matched with an oil pump, a large amount of water is doped in the crude oil, and then the generated aqueous electrolyte is in contact with a metal pipe wall for a long time, so that physical corrosion of the pipe wall can be caused, the service life of the oil pumping pipe with corrosion resistance can be greatly prolonged.
We have therefore proposed a corrosion resistant sucker rod in order to solve the problems set out above.
Disclosure of Invention
The invention aims to provide a corrosion-resistant sucker rod, which is characterized in that an electrode isolation mechanism is arranged, the mechanism is used for improving the material of the inner wall of a rod body pipeline, replacing all-metal materials, corresponding parts made of glass and epoxy resin are used for isolating the metal pipeline from petroleum, and the electrochemical composition principle is utilized to block the generation of metal cations, so that an aqueous electrolyte cannot be combined with required electrons, and the generation of electrochemical corrosion is inhibited, so that the problems raised by the background technology are solved.
In order to achieve the above purpose, the present invention provides the following technical solutions: the corrosion-resistant sucker rod comprises a main pipe body and an auxiliary pipe body, wherein electrode isolation mechanisms are arranged in the main pipe body and the auxiliary pipe body respectively, a crude oil sub-filtering mechanism is fixedly communicated with the bottom of the main pipe body, and a sub-pipe splicing mechanism is arranged in the main pipe body and the auxiliary pipe body;
the electrode isolation mechanism comprises two groups of positioning plates, a partition plate is embedded between the outer surface walls of each two of the two groups of positioning plates, inner containers are arranged between the outer surface walls of the partition plates, and the inner surface walls of the two inner containers are wrapped with a heat insulation coating;
the split-joint mechanism comprises two groups of slots, permanent magnets are fixedly mounted at the bottoms of the inner walls of the slots, a group of track grooves are formed in the bottoms of the auxiliary pipe bodies, limiting rings are fixedly mounted on the inner surface walls of the track grooves, baffles are movably arranged in the track grooves, and cooperation plates are fixedly mounted at the bottoms of the baffles.
Preferably, the outer surface walls of the cooperation plates are respectively matched with the inner walls of the limiting rings and the slots, and the number of the baffle plates and the number of the slots in each group are equal, and the outer walls of the cooperation plates are respectively matched with the inner walls of the slots and the limiting rings, so that the cooperation plates can flexibly move in the two.
Preferably, a group of outer grooves are formed in the outer surface walls of the main pipe body and the auxiliary pipe body, sealing plates are movably arranged on the inner surface walls of each outer groove, buckling handles are welded on the outer surface walls of each sealing plate, after the sealing plates and the outer grooves are assembled, the sealing plates can fully enter the inner parts of the outer grooves, so that the flatness of the outer walls of the pipe bodies is guaranteed, the generation of less convex surfaces is avoided, the friction coefficient between the sealing plates and oil field holes is overlarge, and damage to certain parts is caused.
Preferably, five groups of connection holes are formed in the main pipe body and the auxiliary pipe body, a group of positioning rods are fixedly inserted into the sealing plate, the number of the positioning rods is equal to that of the connection holes, the outer surface wall of each positioning rod is matched with the inner wall of the connection hole, a group of inner holes are formed in the inner part of each of the cooperation plates, the number of the inner holes is equal to that of the connection holes, the inner surface wall of each inner hole is matched with the outer wall of the positioning rod, and the sealing plate is moved after the connection holes are aligned with the inner holes through the suitability among the connection holes, the inner holes and the positioning rods, so that each positioning rod is inserted into the inner holes, and the cooperation plates can be effectively fixed in the slots.
Preferably, the crude oil separating and filtering mechanism comprises a supporting plate, the top of the supporting plate is fixedly arranged at the bottom of the main pipe body, a first locking lantern ring is fixedly arranged at the bottom of the supporting plate, a hollow sleeve is fixedly arranged on the inner surface wall of the first locking lantern ring, the liquid draining end of the hollow sleeve penetrates through the bottom of the main pipe body and is communicated with the inside of the main pipe body, and the hollow sleeve is arranged, so that the built-in space of the pipe body can be increased, and necessary conditions are provided for assembling the filtering component.
Preferably, the inner surface wall of the hollow sleeve is fixedly provided with an inner connecting ring, the inner part of the inner connecting ring is provided with an inserting ring groove, the inner part of the inserting ring groove is fixedly embedded with a metal filter screen, the metal filter screen is arranged for preliminary filtration of crude oil, and the crude oil is formed by deposition of plant or animal remains, so that a large amount of solid impurities are contained in the crude oil, meanwhile, the diameter of the inner wall of the pipe body of the equipment is limited, and the blockage of the inner wall of the pipe can be effectively avoided by preliminary filtration of the crude oil.
Preferably, the bottom fixed mounting of layer board has the dead lantern ring of second, the inside fixed cartridge of dead lantern ring of second is equipped with the extension urceolus, the bottom fixed mounting of extension urceolus has the cambered surface to connect, sets up the cambered surface and connects, utilizes the cambered surface to connect appearance structure, when contacting with the hard thing in the oil field, can reduce both area of contact, provides the condition of buffering interface to can produce less displacement difference, effectively prevent the damage of pipeline bottom structure.
Preferably, a group of diversion pipelines are fixedly inserted into the cambered surface joint, the liquid discharge ends of the diversion pipelines penetrate through the bottom of the hollow sleeve and are communicated with the inside of the hollow sleeve, the diversion pipelines are arranged, the adsorption effect generated by the oil pump can be enhanced, and the crude oil can be continuously extracted into the hollow sleeve for preliminary treatment due to the fact that the quantity of the diversion pipelines is large.
Preferably, the hollow telescopic bottom is provided with the unloading and connects, the feed end that the unloading connects runs through hollow telescopic bottom to be linked together with hollow telescopic inside, the inside that the cambered surface connects is preset to overflow the hole, sets up the unloading and connects for dredge the discharge of sand grain and impurity, avoid crude oil to filter the back through metal filter screen, multiple solid impurity to pile up in the inside that the cambered surface connects, cause the jam of main passageway, influence the speed that the body produced oil.
Preferably, the outer surface walls of the two groups of positioning plates are respectively connected with the inner walls of the main pipe body and the auxiliary pipe body, the two groups of supporting plates are respectively arranged at the tops of the main pipe body and the auxiliary pipe body, the tops of the main pipe body and the auxiliary pipe body are respectively provided with an inner open ring groove, the bottom of the auxiliary pipe body is fixedly provided with a grafting head, the outer surface walls of the grafting head are matched with the inner walls of the inner open ring grooves, the tops of the main pipe body and the auxiliary pipe body are respectively provided with a first sealing ring, the bottom of the grafting head is provided with a second sealing ring, the connection relation between the positioning plates and the whole equipment is determined, the tightness of the connection part of the main pipe body and the auxiliary pipe body can be improved by arranging the first sealing ring and the second sealing ring, and the crude oil is prevented from overflowing into the connection part of the main pipe body and the auxiliary pipe body, so that the cleaning difficulty of later period is increased.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention improves the material of the inner wall of the rod body pipeline by arranging the electrode isolation mechanism, replaces all-metal materials, uses corresponding parts made of glass and epoxy resin, isolates the metal pipeline from being contacted with petroleum, blocks the generation of metal cations by utilizing the electrochemical composition principle, ensures that the electrolyte of the aqueous solution cannot combine with required electrons, further cannot form the primary cell effect, inhibits the generation of electrochemical corrosion, effectively solves the defects of the patent and prolongs the service life of the pipe body.
2. According to the invention, the crude oil separating and filtering mechanism is arranged, the impurity dredging component is added on the basis of the existing filtering component, and the impurities can be gradually discharged from the appointed component to the inside of the mechanism under the action of gravity and liquid circulation by utilizing the quality of accumulated impurities and the characteristic of liquid circulation, so that the self-cleaning capability of the mechanism is realized, and the impurities are prevented from blocking a main channel of a pipe body.
3. According to the invention, the split pipe splicing mechanism is arranged, the mechanism is used for assembling a plurality of pipelines in a flexible splicing mode, and corresponding parts are all positioned in the pipe body, so that the outer wall of the pipe is prevented from generating more convex surfaces, meanwhile, the connection strength between each pipe body is further enhanced by adopting the method of inserting in the pipe, and the convex parts of the outer wall of the pipe are prevented from continuously rubbing against the inner wall of a drilled hole to cause damage of a single part.
Drawings
FIG. 1 is a perspective view of the front view of the structure of a corrosion resistant sucker rod of the present invention;
FIG. 2 is an enlarged perspective view of the bottom side structure of the main tubular body of the sucker rod of the present invention;
FIG. 3 is an enlarged perspective view of the top view of a main tubular body of the corrosion resistant sucker rod of the present invention;
FIG. 4 is an enlarged perspective view of the bottom side structure of the secondary pipe body in the corrosion-resistant sucker rod of the present invention;
FIG. 5 is a schematic plan view of an electrode isolation mechanism in a corrosion resistant sucker rod according to the present invention;
FIG. 6 is an enlarged perspective view of the oil filter mechanism in the corrosion resistant sucker rod of the present invention;
FIG. 7 is an enlarged perspective view of a corrosion resistant sucker rod of the present invention showing the structure A of FIG. 3;
FIG. 8 is an enlarged perspective view of a corrosion resistant sucker rod of the present invention showing the structure of FIG. 2 at B;
FIG. 9 is an enlarged perspective view of a corrosion resistant sucker rod of the present invention showing the structure of FIG. 4 at C.
In the figure:
1. a main pipe body; 2. an auxiliary pipe body;
3. an electrode isolation mechanism; 301. a positioning plate; 302. a dividing plate; 303. an inner container; 304. a thermal insulation coating;
4. a crude oil separating and filtering mechanism; 401. a supporting plate; 402. a first locking collar; 403. a hollow sleeve; 404. an inner ring; 405. a metal filter screen; 406. a second locking collar; 407. an extension outer cylinder; 408. a cambered surface joint; 409. a shunt pipeline; 410. a blanking connector; 411. an overflow hole;
5. a branch pipe splicing mechanism; 501. a slot; 502. permanent magnet blocks; 503. an outer slot; 504. a connection hole; 505. a sealing plate; 506. a positioning rod; 507. a track groove; 508. a limiting ring; 509. a baffle; 510. a cooperating plate; 511. a buckling handle;
6. an annular groove is opened inwards; 7. grafting joint; 8. a first seal ring; 9. and a second sealing ring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-9, the present invention provides a technical solution: the utility model provides a corrosion-resistant sucker rod, includes main body 1 and auxiliary pipe body 2, and the inside of main body 1 and auxiliary pipe body 2 all is provided with electrode isolation mechanism 3, and the fixed intercommunication of bottom of main body 1 has crude oil to divide to strain mechanism 4, and the inside of main body 1 and auxiliary pipe body 2 is provided with and divides tub concatenation mechanism 5.
According to the illustration shown in fig. 1-5, the electrode isolation mechanism 3 comprises two sets of positioning plates 301, wherein a partition plate 302 is embedded between the outer surface walls of each two of the two sets of positioning plates 301, inner containers 303 are arranged between the outer surface walls of the plurality of partition plates 302, and the inner surface walls of the two inner containers 303 are wrapped with a heat insulation coating 304.
According to the embodiments shown in fig. 1-4, fig. 7 and fig. 9, the split-tube splicing mechanism 5 comprises two groups of slots 501, wherein permanent magnets 502 are fixedly installed at the bottom of the inner wall of each slot 501, a group of track grooves 507 are formed in the bottom of the auxiliary tube body 2, limiting rings 508 are fixedly installed on the inner surface walls of the group of track grooves 507, baffles 509 are movably arranged in the group of track grooves 507, and a cooperation plate 510 is fixedly installed at the bottom of each baffle 509.
According to fig. 4 and fig. 7-8, the outer surface walls of a set of cooperating plates 510 are respectively adapted to the inner walls of the stop collar 508 and the slot 501, and the number of baffles 509 and slots 501 in each set is equal, so that the cooperating plates 510 can flexibly move inside the two, since the outer walls of the cooperating plates 510 are respectively adapted to the inner walls of the slot 501 and the stop collar 508.
According to the figures 1-2 and 8, a group of outer grooves 503 are formed in the outer surface walls of the main pipe body 1 and the auxiliary pipe body 2, a sealing plate 505 is movably arranged on the inner surface wall of each of the two groups of outer grooves 503, a buckling handle 511 is welded on the outer surface wall of each sealing plate 505, and after the sealing plates 505 and the outer grooves 503 are assembled, the sealing plates 505 can fully enter the inner parts of the outer grooves 503 by utilizing the suitability of the sealing plates 505 and the outer grooves 503, so that the flatness of the outer wall of the pipe body is ensured, the generation of less convex surfaces is avoided, and the damage of certain parts caused by overlarge friction coefficient with oil field holes is avoided.
According to fig. 1-2 and fig. 7-9, five sets of engagement holes 504 are formed in the main pipe body 1 and the auxiliary pipe body 2, a set of positioning rods 506 are fixedly inserted into the inner portion of each sealing plate 505, the number of the positioning rods 506 is equal to that of the engagement holes 504, the outer surface wall of each positioning rod 506 is matched with the inner wall of the engagement hole 504, a set of inner openings are formed in the inner portion of each of a set of cooperation plates 510, the number of the inner openings of each set of inner openings is equal to that of the engagement hole 504, the inner surface wall of each inner opening is matched with the outer wall of the positioning rod 506, and after the engagement holes 504 are aligned with the inner openings, the sealing plate 505 is moved to insert each positioning rod 506 into the two, so that the cooperation plates 510 can be effectively fixed in the slot 501.
According to fig. 1-2 and 6, the crude oil separating and filtering mechanism 4 comprises a supporting plate 401, the top of the supporting plate 401 is fixedly arranged at the bottom of the main pipe body 1, a first locking collar 402 is fixedly arranged at the bottom of the supporting plate 401, a hollow sleeve 403 is fixedly arranged on the inner surface wall of the first locking collar 402, the liquid discharging end of the hollow sleeve 403 penetrates through the bottom of the main pipe body 1 and is communicated with the inside of the main pipe body 1, and by arranging the hollow sleeve 403, the internal space of the pipe body can be increased and necessary conditions are provided for assembling the filtering component.
According to the illustration shown in fig. 6, the inner surface wall of the hollow sleeve 403 is fixedly provided with an inner ring 404, the inner part of the inner ring 404 is provided with an inserting ring groove, and the inner part of the inserting ring groove is fixedly embedded with a metal filter screen 405, and the metal filter screen 405 is used for preliminary filtering crude oil, which is formed by depositing plant or animal debris, so that a large amount of solid impurities are contained therein, and meanwhile, the diameter of the inner wall of the pipe body of the equipment is limited, so that the blockage of the inner wall of the pipe can be effectively avoided by preliminary filtering.
According to the embodiment shown in fig. 6, the bottom of the supporting plate 401 is fixedly provided with a second locking collar 406, an extension outer cylinder 407 is fixedly inserted in the second locking collar 406, the bottom of the extension outer cylinder 407 is fixedly provided with a cambered surface joint 408, and by arranging the cambered surface joint 408, the outer shape structure of the cambered surface joint 408 is utilized, when the supporting plate contacts with hard objects in an oil field, the contact area of the supporting plate and the hard objects can be reduced, the condition of a buffer interface is provided, and a small displacement difference can be generated, so that the damage of the bottom structure of a pipeline is effectively prevented.
According to the embodiment shown in fig. 6, a set of diversion pipelines 409 are fixedly inserted into the cambered surface joint 408, and the liquid draining ends of the set of diversion pipelines 409 penetrate through the bottom of the hollow sleeve 403 and are communicated with the inside of the hollow sleeve 403, so that the adsorption effect generated by the oil pump can be enhanced by arranging the diversion pipelines 409, and the crude oil can be continuously extracted into the hollow sleeve 403 for preliminary treatment due to the large number of the diversion pipelines 409.
According to the illustration shown in fig. 6, the bottom of the hollow sleeve 403 is provided with a blanking connector 410, the feeding end of the blanking connector 410 penetrates through the bottom of the hollow sleeve 403 and is communicated with the inside of the hollow sleeve 403, and an overflow hole 411 is preset in the inside of the cambered surface connector 408, so that the discharging of sand particles and impurities is conducted through the arrangement of the blanking connector 410, and the phenomenon that various solid impurities are accumulated in the inside of the cambered surface connector 408 after crude oil is filtered by the metal filter screen 405 to cause the blockage of a main channel and influence the oil outlet rate of a pipe body is avoided.
According to the figures 1-4, the outer surface walls of two groups of positioning plates 301 are respectively connected with the inner walls of a main pipe body 1 and an auxiliary pipe body 2, two groups of supporting plates 401 are respectively arranged at the tops of the main pipe body 1 and the auxiliary pipe body 2, inner open-loop grooves 6 are respectively arranged at the tops of the main pipe body 1 and the auxiliary pipe body 2, a grafting head 7 is fixedly arranged at the bottom of the auxiliary pipe body 2, the outer surface walls of the grafting head 7 are matched with the inner walls of the inner open-loop grooves 6, first sealing rings 8 are respectively arranged at the tops of the main pipe body 1 and the auxiliary pipe body 2, second sealing rings 9 are arranged at the bottoms of the grafting head 7, the connection relation between the positioning plates 301 and the supporting plates 401 and the whole equipment is determined, and the tightness of the connection part of the main pipe body 1 and the auxiliary pipe body 2 can be improved by arranging the first sealing rings 8 and the second sealing rings 9, crude oil is prevented from overflowing into the connection part between the main pipe body 1 and the auxiliary pipe body 2 from outside and inside, and the later cleaning difficulty is increased.
The whole mechanism achieves the following effects: the number of the auxiliary pipes 2 required is determined according to the depth of the oilfield holes, and the auxiliary pipes 2 are assembled by aligning the bottoms of the auxiliary pipes 2 with the tops of the main pipes 1, gradually inserting the grafting head 7 into the inner open ring groove 6 as the auxiliary pipes 2 slowly move downwards, sequentially inserting the cooperative plates 510 into the slots 501 under the action of gravity through the track grooves 507, and tightly adsorbing the bottoms of the cooperative plates 510 under the magnetic force reaching the permanent magnet blocks 502, wherein the engagement holes 504 are fully aligned with the inner openings of the cooperative plates 510, further moving the sealing plate 505, and inserting the positioning rods 506 mounted thereon into the engagement holes 504 and the inner openings, so that each cooperative plate 510 is fixed into the slots 501.
When the combined rod body is communicated with the oil pump, the combined rod body is inserted into a preset drilling hole, at the moment, a plurality of parts connected with the bottom of the main pipe body 1 are completely immersed in oil, the oil pump is started, air retained in the pipe, the hollow sleeve 403 and the split pipelines 409 is continuously extracted, a strong adsorption force is formed at the liquid inlet end of each split pipeline 409, in the process, oil is conveyed by each split pipeline 409 and continuously enters the hollow sleeve 403, when the oil passes through the inside of the metal filter screen 405, solid impurities contained in the oil are stripped according to the structural characteristics of the metal filter screen 405, the initially treated oil gradually enters the inside of the main pipe body 1 and is contacted with the liner 303, meanwhile, as the oil filtering time is increased, the generated solid impurities continuously increase, and when the mass of the oil is large, the oil can slide out from the blanking connector 410 and finally is discharged from the overflow hole 411, so that the effect of no accumulation of the impurities is achieved.
After the petroleum contacts with the liner 303, the petroleum is isolated through the liner 303 and the partition plate 302, and the petroleum is made of glass and epoxy resin respectively, so that the petroleum does not contact with the inner wall of the metal pipe body due to the non-conductivity and corrosion resistance of the petroleum and the partition plate, and further, the metal dissolution phenomenon is avoided, so that metal cations are not generated, and the cathode aqueous solution electrolyte cannot combine electrons, so that electrochemical corrosion cannot be generated.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (10)
1. A corrosion resistant sucker rod, characterized in that: the oil separation and filtration device comprises a main pipe body (1) and an auxiliary pipe body (2), wherein electrode isolation mechanisms (3) are arranged in the main pipe body (1) and the auxiliary pipe body (2), a crude oil separation and filtration mechanism (4) is fixedly communicated with the bottom of the main pipe body (1), and a branch pipe splicing mechanism (5) is arranged in the main pipe body (1) and the auxiliary pipe body (2);
the electrode isolation mechanism (3) comprises two groups of positioning plates (301), a partition plate (302) is embedded between the outer surface walls of each two of the positioning plates (301), inner containers (303) are arranged between the outer surface walls of the partition plates (302), and heat insulation coatings (304) are wrapped on the inner surface walls of the two inner containers (303);
the split-pipe splicing mechanism (5) comprises two groups of slots (501), permanent magnets (502) are fixedly installed at the bottoms of the inner walls of the slots (501), a group of track grooves (507) are formed in the bottoms of the auxiliary pipe bodies (2), limiting rings (508) are fixedly installed on the inner surface walls of the track grooves (507), baffles (509) are movably arranged in the track grooves (507), and a cooperation plate (510) is fixedly installed at the bottoms of the baffles (509).
2. The corrosion resistant sucker rod of claim 1 wherein: the outer surface walls of a group of the cooperation plates (510) are respectively matched with the limit rings (508) and the inner walls of the slots (501), and the number of each group of the baffles (509) is equal to that of the slots (501).
3. The corrosion resistant sucker rod of claim 1 wherein: the outer surface walls of the main pipe body (1) and the auxiliary pipe body (2) are respectively provided with a group of outer grooves (503), the inner surface wall of each of the outer grooves (503) is respectively and movably provided with a sealing plate (505), and the outer surface wall of each sealing plate (505) is respectively welded with a buckling handle (511).
4. A corrosion resistant sucker rod according to claim 3 wherein: five groups of connection holes (504) are formed in the main pipe body (1) and the auxiliary pipe body (2), a group of positioning rods (506) are fixedly inserted into the sealing plate (505), the number of the positioning rods (506) is equal to that of the connection holes (504), the outer surface wall of each positioning rod (506) is matched with the inner wall of the connection hole (504), a group of inner holes are formed in the inner part of each of the cooperation plates (510), the number of the inner holes is equal to that of the connection holes (504), and the inner surface wall of each inner hole is matched with the outer wall of the positioning rod (506).
5. The corrosion resistant sucker rod of claim 1 wherein: the crude oil separating and filtering mechanism (4) comprises a supporting plate (401), the top of the supporting plate (401) is fixedly arranged at the bottom of the main pipe body (1), a first locking sleeve ring (402) is fixedly arranged at the bottom of the supporting plate (401), a hollow sleeve (403) is fixedly arranged on the inner surface wall of the first locking sleeve ring (402), and the liquid draining end of the hollow sleeve (403) penetrates through the bottom of the main pipe body (1) and is communicated with the inside of the main pipe body (1).
6. The corrosion resistant sucker rod of claim 5 wherein: an inner ring (404) is fixedly arranged on the inner surface wall of the hollow sleeve (403), a plug ring groove is formed in the inner part of the inner ring (404), and a metal filter screen (405) is fixedly embedded in the inner part of the plug ring groove.
7. The corrosion resistant sucker rod of claim 5 wherein: the bottom of layer board (401) fixed mounting has second locking lantern ring (406), the inside fixed cartridge of second locking lantern ring (406) has extended urceolus (407), the bottom fixed mounting of extending urceolus (407) has cambered surface joint (408).
8. The corrosion resistant sucker rod of claim 7 wherein: a group of diversion pipelines (409) are fixedly inserted into the cambered surface joint (408), and the liquid draining ends of the diversion pipelines (409) penetrate through the bottom of the hollow sleeve (403) and are communicated with the inside of the hollow sleeve (403).
9. The corrosion resistant sucker rod of claim 5 wherein: the bottom of hollow sleeve (403) is provided with unloading joint (410), the feed end that unloading connects (410) runs through the bottom of hollow sleeve (403) to be linked together with the inside of hollow sleeve (403), the inside of cambered surface joint (408) is equipped with in advance and overflows hole (411).
10. The corrosion resistant sucker rod of claim 1 wherein: two sets of exterior wall of locating plate (301) is connected with the inner wall of being responsible for body (1) and vice body (2) respectively, two sets of layer board (401) are offered respectively at the top of being responsible for body (1) and vice body (2), interior open ring groove (6) have all been offered at the top of being responsible for body (1) and vice body (2), bottom fixed mounting of vice body (2) has grafting head (7), the interior wall looks adaptation of the exterior wall of grafting head (7) and interior open ring groove (6), the top of being responsible for body (1) and vice body (2) all is provided with first sealing washer (8), the bottom of grafting head (7) is provided with second sealing washer (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310415865.3A CN116241193B (en) | 2023-04-19 | 2023-04-19 | Corrosion-resistant sucker rod |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310415865.3A CN116241193B (en) | 2023-04-19 | 2023-04-19 | Corrosion-resistant sucker rod |
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| Publication Number | Publication Date |
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| CN116241193A true CN116241193A (en) | 2023-06-09 |
| CN116241193B CN116241193B (en) | 2023-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310415865.3A Active CN116241193B (en) | 2023-04-19 | 2023-04-19 | Corrosion-resistant sucker rod |
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| CN216477820U (en) * | 2021-12-14 | 2022-05-10 | 温岭汉德泵业有限公司 | High-strength corrosion-resistant deep-well pump |
| CN217055055U (en) * | 2022-04-27 | 2022-07-26 | 胜利油田物华实业发展有限公司 | Antitorque anticreep electroplating nickel tungsten sucker rod |
| CN217327629U (en) * | 2022-05-07 | 2022-08-30 | 山东立鑫石油机械制造有限公司 | Rod type oil well pump |
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150354287A1 (en) * | 2014-06-05 | 2015-12-10 | Materion Corporation | Coupling for rods |
| CN208981972U (en) * | 2018-10-14 | 2019-06-14 | 滨州华闻机械有限责任公司 | A kind of wear-and corrosion-resistant rod-taper |
| CN209244520U (en) * | 2018-10-14 | 2019-08-13 | 滨州华闻机械有限责任公司 | A kind of cladding sucker rod convenient for assembling |
| CN211258518U (en) * | 2019-10-29 | 2020-08-14 | 济源市石油机械有限公司 | High anti-torque sucker rod |
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| CN216477820U (en) * | 2021-12-14 | 2022-05-10 | 温岭汉德泵业有限公司 | High-strength corrosion-resistant deep-well pump |
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| CN217327629U (en) * | 2022-05-07 | 2022-08-30 | 山东立鑫石油机械制造有限公司 | Rod type oil well pump |
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| Publication number | Publication date |
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| CN116241193B (en) | 2023-10-27 |
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