CN218759797U - Efficient centralizing scraping high-temperature strong-magnetic salvaging device - Google Patents
Efficient centralizing scraping high-temperature strong-magnetic salvaging device Download PDFInfo
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- CN218759797U CN218759797U CN202223503683.1U CN202223503683U CN218759797U CN 218759797 U CN218759797 U CN 218759797U CN 202223503683 U CN202223503683 U CN 202223503683U CN 218759797 U CN218759797 U CN 218759797U
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Abstract
The utility model relates to an efficient centralizing scraping high-temperature strong magnetic salvager, which comprises a salvager main body and is characterized in that the salvager main body is provided with a high-temperature strong magnetic unit at the middle part and flexible centralizing scraping units arranged at the two ends of the high-temperature strong magnetic unit; the high-temperature strong magnetic unit comprises high-temperature strong magnetic blocks which are circumferentially distributed along the middle part of the fisher main body and are axially arranged; the flexible centering scraping units are two groups with the same structure and are respectively arranged at the near end parts of the two ends of the fisher body, each group of flexible centering scraping units comprises a plurality of centering scraping blocks distributed along the circumferential direction of the fisher body, and the centering scraping blocks of the two groups of flexible centering scraping units are distributed in a staggered mode in the axial direction. The utility model discloses an efficient is right and is cut high temperature magnetism fisher that excels in possesses the flexibility and right, scrape sleeve pipe inner wall, magnetism and the strong characteristics that high temperature environment magnetism does not fade.
Description
Technical Field
The utility model relates to an oil and natural gas exploitation operation equips technical field, particularly, relates to an efficient is right and is cut high temperature strong magnetism salvage ware.
Background
With the deep development of petroleum and natural gas and the progress of exploitation technology, at present, horizontal wells or highly deviated wells are more and more, and tools developed in a matching way also need to meet the well conditions of the horizontal wells or the highly deviated wells. The tool string combination running in the horizontal well or the highly-deviated well runs at the bottom of the inner wall of the casing in the well due to self-weight, so that the tool string is not centered, and particularly in fishing operation, a fishing tool cannot exert performance well. In addition, due to the existence of various factors, most of casings in the well have elliptical deformation, the rigid centralizing tool can solve the centering problem, but the passability has certain limitation; therefore, the fishing tool with flexible righting function is a key tool for effectively solving the problem.
With the development of operation technology, the bridge plug becomes an important auxiliary tool for layered mining by means of yield increasing, the bridge plug needs to be removed by means of drilling and grinding before formal production, the metal clamping block on the bridge plug is not easy to be carried out of a well along with the flowback liquid due to high density, self weight and the like, and if the metal clamping block is not fished out, the tool string combination is clamped inside the casing. On the other hand, the corrosion of corrosive gas or liquid containing sulfur, hydrogen sulfide and the like in petroleum or natural gas to the metal casing, even the delamination and falling are generated, which brings difficulty to the later production and repair. Therefore, a professional scraping tool is urgently needed to scrape and clean the inner wall of the sleeve, and finally, metal fragments, scraps and the like are fished out of the well.
The tool string combination for operation in the horizontal well and the highly-deviated well needs to pass through the deviation making section from the vertical section to the horizontal section, and due to the fact that the tool string running inside has rigidity and is not easy to bend, under the function of meeting construction requirements, the shorter the tool string combination is, the better the tool string combination is, the more the tool string combination is favorable for passing through the deviation making section. The high-efficiency strong magnetic salvage device has the characteristics, and brings great convenience and high efficiency for development and exploitation of the petroleum or natural gas industry.
As the technology advances and the functionality of the equipment increases, the production of oil or gas progresses towards deeper formations, with increasing depth, and the temperature inside the formations increases. The conventional magnetic fishing tool on the market has the condition that the magnetism is weakened or disappears under the high-temperature environment, and the function of utilizing magnetic attraction is lost, so that the development of a fishing tool suitable for the high-temperature environment is very urgent.
Disclosure of Invention
The utility model aims at providing a possess the flexibility right, scrape sleeve pipe inner wall, magnetism and high temperature environment magnetism does not disappear high-efficient strong magnetism salvage ware.
In order to solve the above problems, the utility model adopts the following technical scheme:
the efficient centralizing scraping high-temperature strong-magnetic fisher comprises a fisher body and is characterized in that the fisher body is provided with a high-temperature strong-magnetic unit in the middle and flexible centralizing scraping units arranged at two ends of the high-temperature strong-magnetic unit;
the high-temperature strong magnetic unit comprises high-temperature strong magnetic blocks which are circumferentially distributed along the middle part of the fisher main body and are axially arranged;
the flexible centering scraping units are two groups with the same structure and are respectively arranged at the near end parts of the two ends of the fisher body, each group of flexible centering scraping units comprises a plurality of centering scraping blocks distributed along the circumferential direction of the fisher body, and the centering scraping blocks of the two groups of flexible centering scraping units are distributed in a staggered mode in the axial direction.
In a specific embodiment of the application, the flexible centering scraping units are installed in grooves formed in the proximal end portions of the two ends of the fisher body, the grooves are uniformly distributed along the circumference of the fisher body 1 and divided into an upper group and a lower group, the upper group is a first groove in the upper portion, the lower group is a third groove in the lower portion, the number of each group of grooves is 2-4, and the first grooves in the upper portion and the third grooves in the lower portion are distributed in an axially staggered manner.
In one embodiment of the present application, the centering scraping block is installed in the first groove and the third groove through a pressing block and a bolt, and a return spring is installed between the centering scraping block and the grooves in a pressing manner.
In a particular embodiment of the application, the outer surface of the centering scraping block is designed with a plurality of outer grooves, which form acute angles with the surface of the centering scraping block.
In one embodiment of the present application, a counter bore is formed in an inner surface of the centering scraper block, and the counter bore is used for mounting a return spring.
In a specific embodiment of the application, the high-temperature strong magnetic blocks of the high-temperature strong magnetic unit are arranged in second grooves which are formed in the middle of the fisher body in the circumferential direction, the second grooves are axially long-strip-shaped, and the number of the second grooves is 3-4; the cross-section of second recess is the rectangle structure, and this rectangle structure is used for installing the strong magnet of high temperature, the periphery of rectangle structure is provided with the horn mouth structure of outside extension, the adsorption sphere in horn mouth structure is used for optimizing magnetic field, further increases accommodation space.
In a specific embodiment of this application, the tip of second recess is seted up and is used for holding the fourth recess of non-metallic gasket, fourth recess department is installed through the bolt and is used for carrying out spacing dog to the strong magnet of high temperature.
In a specific embodiment of the present application, the upper end and the lower end of the fisher body are respectively a threaded connection section, which includes a threaded female buckle at the upper end and a threaded male buckle at the lower end.
The utility model discloses an efficient is right and is cut high temperature strong magnetism fisher is provided with and rights, scrape, strong magnetism salvages in the function of an organic whole, has advantages such as succinct, short and small, more is fit for the passing through performance of oil and natural gas trade horizontal well and highly deviated well. The flexible centralizing scraping unit is superior to the conventional rigid centralizing, has better passing performance and is particularly suitable for casing deformation well conditions. The flexible centralizing scraping unit and the high-temperature strong magnetic salvaging unit are integrated, and corroded or fallen metal on the inner wall of the scraping sleeve is adsorbed by the strong magnetic block immediately. The adsorption space is increased while the sleeve is righted, more magnetic falling objects are adsorbed and salvaged, and the falling objects are not easy to fall due to friction when moving in the sleeve, so that the operation efficiency is improved. The bell mouth that fisher main part second groove extended outward along circumference is favorable to the absorption of strong magnetism, has also increased the adsorption space simultaneously. The peripheral rectangular section of the second groove of the fisher body is easier to process. The buffer nonmetal gaskets are placed in the fourth groove of the fisher main body, so that the buffer space for magnetic adsorption when the high-temperature strong magnetic block and the fisher main body are installed is increased, and the installation of the high-temperature strong magnetic block is more facilitated. The high-temperature strong magnet is adaptable, and the magnetism is not attenuated under the high-temperature condition due to the high-temperature influence caused by a high-depth well, so that the adsorption performance is ensured, and the operation efficiency is improved. The flexible straightening scraping unit scraping block is replaceable. The scraping blocks with different specifications increase the applicability to the well casing and save the cost to a certain extent.
Drawings
FIG. 1: a structural schematic diagram of a high-efficiency centralizing scraping high-temperature strong-magnetic salvage device;
FIG. 2 is a drawing: the structure of the fisher main body is schematic;
FIG. 3: an assembly schematic diagram of a high-efficiency centralizing scraping high-temperature strong-magnetic salvage device;
FIG. 4 is a drawing: FIG. 3 is a partially enlarged schematic view of the structure;
FIG. 5: a schematic structural diagram of the centralizing scraping block;
FIG. 6: the structure schematic diagram of a second groove of the fisher main body;
FIG. 7: the assembly structure schematic diagram of the second groove of the fisher main body and the high-temperature strong magnetic block;
in the figure, 1, a fisher body, 101, a flexible righting scraping unit, 102, a high-temperature strong magnetic unit, 1-1, a thread female buckle, 1-2, a thread male buckle, 1-3, a first groove, 1-4, a second groove, 1-5, a third groove, 1-6, a fourth groove, 2, a righting scraping block, 2-1, an outer groove, 2-2, a counter bore, 3, a reset spring, 4, a pressing plate, 5, a bolt, 6, a high-temperature strong magnetic block, 7, a non-metal gasket, 8 and a stop block.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
Example 1
The efficient centralizing scraping high-temperature high-strength magnetic fishing device comprises a fishing device main body 1, wherein the upper end and the lower end of the fishing device main body 1 are respectively provided with a threaded connection section, the upper end is provided with a threaded female buckle 1-1, and the lower end is provided with a threaded male buckle 1-2. The middle section of the fisher body 1 is a high-temperature strong magnetic unit 102 which is circumferentially arranged, and two ends of the high-temperature strong magnetic unit 102 are respectively provided with a group of flexible centralizing scraping units 101.
The flexible centralizing scraping units 101 are installed in grooves formed in the proximal end portions of the two ends of the fisher body 1, the grooves are uniformly distributed along the circumferential direction of the fisher body 1 and are divided into an upper group and a lower group, the upper group is a first groove 1-3 on the upper portion and a third groove 1-5 on the lower portion, the number of the grooves in each group is 2-4, and the first grooves 1-3 on the upper portion and the third grooves 1-5 on the lower portion are axially distributed in a staggered mode.
The flexible centering scraping unit 101 mainly comprises a centering scraping block 2, a return spring 3, a pressing plate 4 and a bolt 5 playing a role in connection and fixation, wherein the centering scraping block 2 is installed in a first groove 1-3 in the upper portion and a third groove 1-5 in the lower portion, the centering scraping blocks 2 are distributed in the circumferential direction of the fisher body 1 in a staggered mode, and 360-degree surrounding is achieved. And 1-3 return springs 3 are arranged between the centering scraping block 2 and the groove in a pressing mode, and the return springs 3 are used for resetting the centering scraping block 2, so that the centering scraping block 2 is kept extending towards the periphery, and the centering and centering effects are achieved. The two ends of the righting scraping block 2 are limited by pressing plates 4, and the pressing plates 4 are fixed on the fisher main body 1 through bolts 5. The outer surface of the righting scraping block 2 is provided with a plurality of outer grooves 2-1 so as to increase the friction between the righting scraping block and the inner wall of the sleeve and realize the scraping function; the outer groove 2-1 and the surface of the righting scraping block 2 form a certain angle k, and the k is an acute angle. The inner surface of the righting scraping block 2 is provided with 1-3 counter bores 2-2, and the counter bores 2-2 are used for installing limiting return springs 3.
The high-temperature strong magnetic unit 102 is installed in the middle of the fisher body 1 and mainly comprises a high-temperature strong magnetic block 6, a non-metal gasket 7, a stop block 8 and a bolt 5 for connecting and fixing.
3-4 axially long banding second recesses 1-4 are seted up to the middle part circumference of fisher main part 1, the cross-section of second recess 1-4 is rectangular structure a, and this rectangular structure a is used for installing high temperature strong magnet 6, rectangular structure a's periphery is provided with outside horn mouth structure b, horn mouth structure b is used for optimizing the adsorption zone in magnetic field, further increases accommodation space.
Fourth recess 1-6 that is used for holding non-metallic gasket 7 is seted up to the tip of second recess 1-4, the opening size of fourth recess 1-6 slightly is greater than the size of high temperature strong magnet 6, the installation of high temperature strong magnet 6 of being convenient for, non-metallic gasket 7 is arranged in fourth recess 1-6 for avoid high temperature strong magnet 6 in the packing into the damage that causes because of its strong adsorption capacity in the twinkling of an eye. The stopper 8 is arranged at the fourth groove 1-6 and is connected and fixed on the fisher main body 1 through a bolt 5, so that the movement of the high-temperature strong magnetic block 6 is limited.
The utility model discloses an efficient is right and is cut high temperature strong magnetism fisher possesses the characteristics that flexible right, scrape sleeve pipe inner wall, magnetism are strong and high temperature environment magnetism does not fade.
The above fact cases only represent the technical solutions of the present invention, rather than the limitations of the experiments, and although we have improved the experimental solutions, the same field of researchers can still further improve the previously described experimental solutions or perform scientific equivalent replacements for experimental links, and these changes do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions claimed in the present invention.
Claims (9)
1. The efficient centering and scraping high-temperature strong-magnetic salvage device comprises a salvage device body and is characterized in that the salvage device body is provided with a high-temperature strong-magnetic unit in the middle and flexible centering and scraping units arranged at two ends of the high-temperature strong-magnetic unit;
the high-temperature strong magnetic unit comprises high-temperature strong magnetic blocks which are circumferentially distributed along the middle part of the fisher main body and are axially arranged;
the flexible centering scraping units are two groups with the same structure and are respectively arranged at the near end parts of the two ends of the fisher body, each group of flexible centering scraping units comprises a plurality of centering scraping blocks distributed along the circumferential direction of the fisher body, and the centering scraping blocks of the two groups of flexible centering scraping units are distributed in a staggered mode in the axial direction.
2. The high-efficiency high-temperature strong magnetic centering scraper according to claim 1,
the flexible centralizing scraping units are installed in grooves formed in the proximal end portions of the two ends of the fisher body, the grooves are uniformly distributed along the circumferential direction of the fisher body and are divided into an upper group and a lower group, the upper group is a first groove in the upper portion, the lower group is a third groove in the lower portion, the number of each group of grooves is 2-4, and the first grooves in the upper portion and the third grooves in the lower portion are axially distributed in a staggered mode.
3. The high-efficiency righting scraping high-temperature strong-magnetic fisher according to claim 2,
the righting scraping block is installed in the first groove and the third groove through a pressing block and a bolt, and a return spring is installed between the righting scraping block and the grooves in a pressing mode.
4. The high-efficiency high-temperature strong magnetic centering scraper according to claim 3,
the outer surface of the righting scraping block is designed with a plurality of outer grooves, and the outer grooves and the surface of the righting scraping block form acute angles.
5. The high-efficiency high-temperature strong magnetic centering scraper according to claim 4,
and a counter bore is formed in the inner surface of the centralizing scraping block and used for mounting a return spring.
6. The high-efficiency high-temperature strong magnetic centering scraper according to claim 1,
the high-temperature strong magnetic blocks of the high-temperature strong magnetic unit are arranged in second grooves formed in the middle of the fisher body in the circumferential direction, the second grooves are axially long and the number of the second grooves is 3-4.
7. The high-efficiency high-temperature strong magnetic centering scraper according to claim 6,
the cross-section of the second groove is of a rectangular structure, the rectangular structure is used for installing a high-temperature strong magnetic block, and a horn mouth structure extending outwards is arranged on the periphery of the rectangular structure.
8. The high-efficiency high-temperature strong magnetic centering scraper according to claim 7,
and a fourth groove used for accommodating the non-metallic gasket is formed in the end part of the second groove, and a stop block used for limiting the high-temperature strong magnetic block is installed at the fourth groove through a bolt.
9. The high-efficiency high-temperature strong magnetic centering scraper according to claim 1,
the upper end and the lower end of the fisher main body are respectively provided with a threaded connection section which comprises a threaded female buckle at the upper end and a threaded male buckle at the lower end.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223503683.1U CN218759797U (en) | 2022-12-28 | 2022-12-28 | Efficient centralizing scraping high-temperature strong-magnetic salvaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223503683.1U CN218759797U (en) | 2022-12-28 | 2022-12-28 | Efficient centralizing scraping high-temperature strong-magnetic salvaging device |
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| Publication Number | Publication Date |
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| CN218759797U true CN218759797U (en) | 2023-03-28 |
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| CN202223503683.1U Active CN218759797U (en) | 2022-12-28 | 2022-12-28 | Efficient centralizing scraping high-temperature strong-magnetic salvaging device |
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| CN (1) | CN218759797U (en) |
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