Novel multifunctional water injection tool capable of being thrown and fished

Abstract

The invention relates to the technical field of oilfield water injection development, and discloses a novel throwing-fishing multifunctional water injection tool which comprises an outer pipeline, a water conveying pipe is fixedly installed at the bottom of the outer pipeline, a tool protection mechanism is fixedly installed in the outer pipeline, and a throwing-fishing water injection mechanism is fixedly installed in the tool protection mechanism. A coring mechanism is installed in the throwing-fishing water injection mechanism in a threaded mode. According to the novel multifunctional water injection tool capable of being thrown and fished, through the arranged throwing and fished water injection mechanism, in the using process, through fixed installation of an internal thread sleeve column and a fixed valve element, when a locking block on the upper portion drives the fixed valve element to rotate, a notch of a water valve is opened, and at the moment, water injection work can be conducted; and meanwhile, when the coring mechanism is inserted into the throwing-fishing water injection mechanism, certain buffering force is provided for the throwing-fishing water injection mechanism, the throwing-fishing water injection mechanism can be rapidly replaced when scaling, corrosion and the like occur in the throwing-fishing water injection mechanism due to the separated inner bottom assembly and inner top assembly, and the service life of the water injection tool is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of oilfield water injection development, in particular to a novel multifunctional water injection tool capable of being cast and scooped. Background Art

[0002] Water injection is an effective method to maintain reservoir pressure, achieve high and stable production of oil fields and improve the development effect of oil fields. In order to improve the overall development effect of water-driven oil fields, developing stratified water injection technology and realizing multi-oil layer water injection is an important means to improve water drive recovery.

[0003] According to the description of an eccentric water spout electric casting and catching tool disclosed on the patent website (authorization announcement number: CN 108222876 A), "The present invention provides an eccentric water spout electric casting and catching tool, including: a casting and catching arm assembly, a first pressure-bearing cylinder, and a circuit control board, a motor, a ball screw, a telescopic sleeve, a telescopic push-pull rod assembly, a magnet, a Hall switch and a ball screw bracket arranged inside the first pressure-bearing cylinder; when the casting and catching arm assembly contacts the eccentric water spout, the casting and catching arm assembly is subjected to an upward force, pushing the telescopic push-pull rod assembly to drive the magnet upward, the magnet approaches the Hall switch, and the Hall switch is triggered. At this time, the circuit control board controls the motor to work. The present invention enables the ground instrument to control the opening or closing of the casting and catching arm of the electric delivery tool at any time, and has a water spout detection function. When the electric delivery tool contacts the water spout, the ground instrument has a display, thereby avoiding the blindness of casting and catching the water spout."

[0004] In view of the above description, the applicant believes that there are the following problems: During use, the invention realizes the electric opening or closing of the casting and catching arm assembly through the provided ball screw. The casting and catching arm assembly drives the telescopic push-pull rod upward so that the casting and catching arm assembly contacts the eccentric water nozzle, solving the problem of blindness during casting and catching. However, in actual use, due to the harsh underground environment, after the water nozzle adjustment function fails, the device is not convenient for replacing the water nozzle. If scaling and corrosion occur, the water core cannot be replaced in time, which will lead to a shortened service life of the water injection tool. Therefore, it is necessary to invent a new type of multifunctional water injection tool that can be cast and scooped to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a novel multifunctional water injection tool capable of being cast and fished, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a new type of multifunctional water injection tool that can be cast and scooped, comprising an outer pipeline, a water pipe is fixedly installed on the bottom of the outer pipeline, a tool protection mechanism is fixedly installed inside the outer pipeline, a casting and scooping water injection mechanism is fixedly installed inside the tool protection mechanism, and a coring mechanism is installed on the internal threads of the casting and scooping water injection mechanism.

[0007] The casting and water injection mechanism comprises an inner bottom component and an inner top component, and the inner top component is arranged on the top of the inner bottom component.

[0008] Preferably, the tool protection mechanism includes a lower outer ring, which is fixedly installed inside the outer pipe, a lower joint is fixedly installed on the bottom of the lower outer ring, an upper outer ring is fixedly installed on the top of the lower outer ring, an upper joint is slidably installed on the top of the upper outer ring, a movable sleeve is fixedly installed inside the upper joint, and a fixed sleeve is fixedly installed inside the lower outer ring, so as to facilitate external protection of the casting and water injection tools inside the tool protection mechanism through the tool protection mechanism.

[0009] Preferably, grooves are provided at corresponding positions of the upper outer sleeve and the upper joint, and the upper joint is slidably mounted inside a slide groove provided inside the upper outer sleeve, so as to facilitate separation of the lower joint from the upper joint for filter element replacement.

[0010] Preferably, the inner bottom component includes a spring 1, which is fixedly mounted on the top of the lower outer ring, a through hole is opened inside the fixed sleeve, a damper 1 is fixedly mounted on the top and bottom of the spring 1, a sealing sleeve is fixedly mounted inside the fixed sleeve, a supporting outer ring is fixedly mounted inside the sealing sleeve, and a fixed valve core is slidably mounted inside the supporting outer ring, so as to provide buffering and fixation to the bottom of the casting and injection tool through the inner bottom component.

[0011] Preferably, a water outlet hole is opened inside the fixed valve core, a small placement plate is provided on the top of the fixed sleeve, and the fixed valve core is fixedly installed on the top of the small placement plate provided on the top of the fixed sleeve, so as to facilitate water injection and water control through the fixed valve core.

[0012] Preferably, the inner top component includes an internally threaded sleeve column, the internally threaded sleeve column is fixedly installed on the top of the sealing sleeve, an internally threaded filter column is fixedly installed on the top of the internally threaded sleeve column, a locking block is fixedly installed on the inside of the upper outer sleeve ring, a spring 2 is fixedly installed on the bottom of the movable sleeve, a damping 2 is fixedly installed on the bottom of the spring 2, a retaining ring is fixedly installed on the outside of the movable sleeve, and a friction ring is slidably installed on the outside of the movable sleeve, so as to facilitate casting and water injection through the combination of the inner top component and the inner bottom component.

[0013] Preferably, the friction ring is fixedly installed inside the upper joint, and the retaining ring is slidably installed inside the upper joint, thereby improving stability.

[0014] Preferably, the coring mechanism includes a power rod, the power rod is threadedly installed inside the internal threaded filter column, a fixed block is fixedly installed inside the power rod, and a telescopic rod is fixedly installed on the outside of the fixed block, a latch is fixedly installed on the outside of the telescopic rod, and a spring three is fixedly installed on the inside of the latch, so as to facilitate the core taking mechanism to drive the inner top assembly to pull out the filter element inside the inner bottom assembly and the inner top assembly for replacement.

[0015] Preferably, the spring three is arranged outside the telescopic rod, and one end of the spring three away from the tongue is fixedly installed on the outer side of the fixing block, so as to facilitate the positioning and docking of the inner bottom component and the inner top component through the tongue.

[0016] Preferably, the telescopic rod is arranged inside the power rod, and the tongue is slidably installed in the hole opened inside the internal threaded filter column. The outside of the power rod is installed with the internal thread of the internal threaded sleeve, which makes it convenient for the power rod to pull out some parts of the inner bottom assembly and the inner top assembly for replacement.

[0017] Compared with the prior art, the present invention provides a new multifunctional water injection tool that can be cast and fished, and has the following beneficial effects: 1. The new multifunctional water injection tool that can be cast and scooped has a casting and scooping water injection mechanism. During use, the internal threaded sleeve and the fixed valve core are fixedly installed so that when the locking block above drives the fixed valve core to rotate, the notch of the water valve is opened, and water injection can be carried out. At the same time, the damping one and the damping two ensure that the spring one and the spring two will not be compressed to cause the water valve to open when there is no force from above. At the same time, when the coring mechanism is inserted into the casting and scooping water injection mechanism, a certain buffer force is provided to the casting and scooping water injection mechanism. The separated inner bottom component and the inner top component can be quickly replaced when scaling and corrosion occur inside the casting and scooping water injection mechanism, thereby increasing the service life of the water injection tool.

[0018] 2. This new type of multifunctional water injection tool that can be cast and scooped has a tool protection mechanism. During use, the lower outer sleeve, lower joint, upper outer sleeve and upper joint installed inside the outer pipe can provide effective protection for the casting and scooping water injection mechanism installed inside the tool protection mechanism to avoid contamination by external impurities. At the same time, the movable sleeve and the fixed sleeve further strengthen the protection of the outside of the casting and scooping water injection mechanism, further improving the service life of the water injection tool.

[0019] 3. The new type of multifunctional water injection tool that can be cast and scooped has a coring mechanism. During use, when it is necessary to replace the filter element inside the casting and scooping water injection mechanism, the power rod is inserted into the interior of the outer pipe and deep into the interior of the inner top component. After successful docking, the power rod is rotated so that its outer part is threadedly installed with the internal threaded sleeve column, and the tongue is inserted into the groove inside the internal threaded filter column. At this time, the inner top component and the fixed valve core can be removed by dragging upwards, and the filter element can be replaced, thereby realizing the function of separating the casting and scooping water injection tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor: Figure 1 This is a schematic diagram of the appearance structure of the present invention; Figure 2 It is a schematic diagram of a partial cross-sectional plan structure of the present invention; Figure 3 It is a schematic diagram of the overall cross-sectional plan structure of the present invention; Figure 4 This is a schematic diagram of the planar structure of the tool protection mechanism of the present invention; Figure 5 It is a schematic diagram of a partial cross-sectional plan view of the coring mechanism of the present invention; Figure 6 It is a schematic diagram of the enlarged planar structure of location A of the present invention.

[0021] In the figure: 1. outer pipe; 2. water pipe; 3. tool protection mechanism; 31. lower outer ring; 32. lower joint; 33. upper outer ring; 34. upper joint; 35. movable sleeve; 36. fixed sleeve; 4. casting and water injection mechanism; 41. inner bottom assembly; 411. spring one; 412. through hole; 413. damping one; 414. fixed valve core; 415. supporting outer ring; 416. sealing sleeve; 42. inner top assembly; 421. internal threaded sleeve column; 422. internal threaded filter column; 423. locking block; 424. spring two; 425. damping two; 426. retaining ring; 427. friction ring; 5. coring mechanism; 51. power rod; 52. fixed block; 53. telescopic rod; 54. tongue; 55. spring three. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Embodiment 1

[0024] See also Figure 1-3 The present invention provides a technical solution: a new type of multifunctional water injection tool that can be cast and retrieved, comprising an outer pipe 1, a water pipe 2 is fixedly installed at the bottom of the outer pipe 1, a tool protection mechanism 3 is fixedly installed inside the outer pipe 1, a casting and retrieval water injection mechanism 4 is fixedly installed inside the tool protection mechanism 3, and a coring mechanism 5 is installed on the internal thread of the casting and retrieval water injection mechanism 4.

[0025] The casting and water injection mechanism 4 comprises an inner bottom component 41 and an inner top component 42 , and the inner top component 42 is arranged on the top of the inner bottom component 41 .

[0026] Furthermore, the inner bottom component 41 includes a spring 411, which is fixedly installed on the top of the lower outer ring 31. A through hole 412 is opened inside the fixed sleeve 36. A damper 413 is fixedly installed on the top and bottom of the spring 411. A sealing sleeve 416 is fixedly installed inside the fixed sleeve 36. A supporting outer ring 415 is fixedly installed inside the sealing sleeve 416. A fixed valve core 414 is slidably installed inside the supporting outer ring 415, so as to provide buffering and fixation to the bottom of the casting and injection tool through the inner bottom component 41.

[0027] Furthermore, a water outlet hole is opened inside the fixed valve core 414, a small placement plate is set on the top of the fixed sleeve 36, and the fixed valve core 414 is fixedly installed on the top of the small placement plate set on the top of the fixed sleeve 36, so as to facilitate water injection and water control through the fixed valve core 414.

[0028] Furthermore, the inner top component 42 includes an inner threaded sleeve 421, which is fixedly installed on the top of the sealing sleeve 416, and an inner threaded filter column 422 is fixedly installed on the top of the inner threaded sleeve 421, a locking block 423 is fixedly installed inside the upper outer ring 33, a spring 2 424 is fixedly installed on the bottom of the movable sleeve 35, a damping 2 425 is fixedly installed on the bottom of the spring 2 424, a retaining ring 426 is fixedly installed on the outside of the movable sleeve 35, and a friction ring 427 is slidably installed on the outside of the movable sleeve 35, so as to facilitate the merging of the inner top component 42 and the inner bottom component 41 for casting and water injection.

[0029] Furthermore, the friction ring 427 is fixedly installed inside the upper joint 34, and the retaining ring 426 is slidably installed inside the upper joint 34, thereby improving stability. Embodiment 2

[0030] See also Figure 4 In combination with the first embodiment, it is further obtained that the tool protection mechanism 3 includes a lower outer sleeve 31, the lower outer sleeve 31 is fixedly installed inside the outer pipe 1, a lower joint 32 is fixedly installed at the bottom of the lower outer sleeve 31, an upper outer sleeve 33 is fixedly installed at the top of the lower outer sleeve 31, an upper joint 34 is slidably installed at the top of the upper outer sleeve 33, a movable sleeve 35 is fixedly installed inside the upper joint 34, and a fixed sleeve 36 is fixedly installed inside the lower outer sleeve 31, so that the tool protection mechanism 3 can be used to perform external protection on the casting and injection tools inside the tool protection mechanism 3.

[0031] Furthermore, grooves are provided at corresponding positions of the upper outer ring 33 and the upper joint 34, and the upper joint 34 is slidably installed in the slide groove provided inside the upper outer ring 33, so as to facilitate separation of the lower joint 32 and the upper joint 34 for filter element replacement. Embodiment 3

[0032] See also Figure 5-6 , and combined with Example 1 and Example 2, it is further obtained that the coring mechanism 5 includes a power rod 51, the power rod 51 is threadedly installed inside the internal threaded filter column 422, a fixed block 52 is fixedly installed inside the power rod 51, and a telescopic rod 53 is fixedly installed on the outside of the fixed block 52, a tongue 54 is fixedly installed on the outside of the telescopic rod 53, and a spring three 55 is fixedly installed on the inside of the tongue 54, so that the core-taking mechanism 5 drives the inner top component 42 to pull out and replace the filter elements inside the inner bottom component 41 and the inner top component 42.

[0033] Furthermore, spring three 55 is arranged on the outside of the telescopic rod 53, and one end of the spring three 55 away from the tongue 54 is fixedly installed on the outer side of the fixing block 52, so as to facilitate the positioning and docking of the inner bottom component 41 and the inner top component 42 through the tongue 54.

[0034] Furthermore, the telescopic rod 53 is arranged inside the power rod 51, and the tongue 54 is slidably installed in the hole opened inside the internal threaded filter column 422. The outside of the power rod 51 is installed with the internal thread of the internal threaded sleeve 421, which makes it convenient for the power rod 51 to pull out some parts of the inner bottom component 41 and the inner top component 42 for replacement.

[0035] In actual operation, when this device is used, the internal threaded sleeve 421 and the fixed valve core 414 are fixedly installed so that when the locking block 423 above drives the fixed valve core 414 to rotate, the notch of the water valve is opened, and water injection can be carried out at this time. At the same time, the damping 1 413 and the damping 2 425 ensure that the spring 1 411 and the spring 2 424 will not be compressed to cause the water valve to open when there is no force from above. At the same time, when the coring mechanism 5 is inserted into the inside of the casting and scooping water injection mechanism 4, a certain buffering force is provided to the casting and scooping water injection mechanism 4. At the same time, the separated inner bottom component 41 and the inner top component 42 enable the casting and scooping water injection mechanism 4 to be quickly replaced when scaling and corrosion occur inside the outer pipe 1. The collar 31, the lower joint 32, the upper outer collar 33, and the upper joint 34 can provide effective protection for the casting and catching water injection mechanism 4 installed inside the tool protection mechanism 3 to avoid being contaminated by external impurities. At the same time, the movable sleeve 35 and the fixed sleeve 36 further strengthen the protection of the outside of the casting and catching water injection mechanism 4. When it is necessary to replace the filter element inside the casting and catching water injection mechanism 4, the power rod 51 is inserted into the interior of the outer pipe 1 and penetrates into the interior of the inner top component 42. After successful docking, the power rod 51 is rotated so that its outside is threadedly installed with the internal threaded sleeve column 421, and the tongue 54 is inserted into the groove inside the internal threaded filter column 422. At this time, the inner top component 42 and the fixed valve core 414 can be removed by dragging upwards, and the filter element can be replaced.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A novel multifunctional water injection tool that can be cast and fished, comprising an outer pipe (1), characterized in that: A water pipe (2) is fixedly mounted on the bottom of the outer pipe (1), a tool protection mechanism (3) is fixedly mounted inside the outer pipe (1), a casting and scooping water injection mechanism (4) is fixedly mounted inside the tool protection mechanism (3), and a coring mechanism (5) is threadedly mounted inside the casting and scooping water injection mechanism (4); The casting and water injection mechanism (4) comprises an inner bottom component (41) and an inner top component (42), wherein the inner top component (42) is arranged on the top of the inner bottom component (41).

2. A new multifunctional water injection tool that can be cast and fished according to claim 1, characterized in that: The tool protection mechanism (3) comprises a lower outer ring (31), the lower outer ring (31) being fixedly mounted inside the outer pipe (1), a lower joint (32) being fixedly mounted on the bottom of the lower outer ring (31), an upper outer ring (33) being fixedly mounted on the top of the lower outer ring (31), an upper joint (34) being slidably mounted on the top of the upper outer ring (33), a movable sliding sleeve (35) being fixedly mounted inside the upper joint (34), and a fixed sliding sleeve (36) being fixedly mounted inside the lower outer ring (31).

3. A new multifunctional water injection tool that can be cast and fished according to claim 2, characterized in that: Grooves are provided at corresponding positions of the upper outer sleeve ring (33) and the upper joint (34), and the upper joint (34) is slidably mounted inside a sliding groove provided inside the upper outer sleeve ring (33).

4. A new multifunctional water injection tool capable of being cast and fished according to claim 2, characterized in that: The inner bottom component (41) comprises a spring one (411), wherein the spring one (411) is fixedly mounted on the top of the lower outer sleeve (31), a through hole (412) is provided inside the fixed sleeve (36), a damping one (413) is fixedly mounted on the top and bottom of the spring one (411), a sealing sleeve (416) is fixedly mounted inside the fixed sleeve (36), a supporting outer ring (415) is fixedly mounted inside the sealing sleeve (416), and a fixed valve core (414) is slidably mounted inside the supporting outer ring (415).

5. A new multifunctional water injection tool capable of being cast and fished according to claim 4, characterized in that: A water outlet hole is provided inside the fixed valve core (414), a small placement plate is provided on the top of the fixed sliding sleeve (36), and the fixed valve core (414) is fixedly mounted on the top of the small placement plate provided on the top of the fixed sliding sleeve (36).

6. A new multifunctional water injection tool capable of being cast and fished according to claim 2, characterized in that: The inner top component (42) comprises an inner threaded sleeve column (421), the inner threaded sleeve column (421) is fixedly mounted on the top of the sealing sleeve (416), an inner threaded filter column (422) is fixedly mounted on the top of the inner threaded sleeve column (421), a locking block (423) is fixedly mounted inside the upper outer sleeve ring (33), a spring 2 (424) is fixedly mounted on the bottom of the movable sleeve (35), a damping 2 (425) is fixedly mounted on the bottom of the spring 2 (424), a retaining ring (426) is fixedly mounted on the outside of the movable sleeve (35), and a friction ring (427) is slidably mounted on the outside of the movable sleeve (35).

7. A new multifunctional water injection tool capable of being cast and fished according to claim 6, characterized in that: The friction ring (427) is fixedly mounted inside the upper joint (34), and the retaining ring (426) is slidably mounted inside the upper joint (34).

8. The novel multifunctional water injection tool capable of being cast and fished according to claim 1 is characterized in that: The coring mechanism (5) comprises a power rod (51), the power rod (51) being threadedly mounted inside an internally threaded filter column (422), a fixed block (52) being fixedly mounted inside the power rod (51), a telescopic rod (53) being fixedly mounted outside the fixed block (52), a latching tongue (54) being fixedly mounted outside the telescopic rod (53), and a spring three (55) being fixedly mounted inside the latching tongue (54).

9. A new multifunctional water injection tool capable of being cast and fished according to claim 8, characterized in that: The spring three (55) is arranged outside the telescopic rod (53), and one end of the spring three (55) away from the latch tongue (54) is fixedly mounted on the outer side of the fixing block (52).

10. The novel multifunctional water injection tool capable of being cast and fished according to claim 8, characterized in that: The telescopic rod (53) is arranged inside the power rod (51), and the latch tongue (54) is slidably mounted inside a hole opened inside the internal thread filter column (422), and the outside of the power rod (51) is threadably mounted with the internal thread of the internal thread sleeve column (421).

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