CN216277664U - Hydraulic oscillation longitudinal impactor - Google Patents
Hydraulic oscillation longitudinal impactor Download PDFInfo
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- CN216277664U CN216277664U CN202121814869.1U CN202121814869U CN216277664U CN 216277664 U CN216277664 U CN 216277664U CN 202121814869 U CN202121814869 U CN 202121814869U CN 216277664 U CN216277664 U CN 216277664U
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- mandrel
- inner cover
- impactor
- outer barrel
- impact hammer
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Abstract
The utility model relates to a hydraulic oscillation longitudinal impactor, which comprises an outer barrel and a lower joint which are connected, wherein a core shaft is arranged in an inner cavity of the outer barrel, a helical blade is arranged at the upper part of the core shaft, a plurality of core shaft water inlet holes are arranged below the helical blade, a small-diameter section of the core shaft below the helical blade penetrates through a partition plate, and the partition plate is supported in the outer barrel; the upper part of the small-diameter section of the mandrel is symmetrically provided with upper pressure discharge holes, the bottom of the small-diameter section of the mandrel is symmetrically provided with lower pressure discharge holes, and the upper pressure discharge holes and the lower pressure discharge holes are distributed in a cross shape; an inner cover is arranged below the partition plate, and a top cover of the inner cover is screwed on the mandrel; the upper part of the inner cover is provided with an upper discharge hole, and the lower part of the inner cover is provided with a lower discharge hole which is distributed in a cross shape; the inner chamber of inner cover is equipped with the impact hammer, and the upper portion symmetry of impact hammer is equipped with hydraulic groove, and the bottom is equipped with the tenon, and the notch between the tenon is the cross with hydraulic groove and distributes, and during the corresponding guide way that imbeds the lower clutch of impact hammer tenon, the guide way below was equipped with a plurality of lower clutch inlet openings. The impactor can fully utilize hydraulic energy, so that the drill bit can rotate and vibrate longitudinally at the same time, and the rock breaking efficiency is improved.
Description
Technical Field
The utility model relates to a hydraulic oscillator, in particular to a hydraulic oscillation longitudinal impactor, and belongs to the technical field of petroleum drilling tools.
Background
In recent years, with the scarcity of shallow energy, the emphasis of exploration and development of oil and gas resources is gradually shifting from shallow to deep and special strata. However, with the increasing drilling depth, the deep oil and gas resources face a lot of difficulties and challenges in the drilling process, such as the complex formation structure with poor drillability, the hardness of the rock in the deep formation is high, the torque of the rotary table is reduced with the depth, the effect of the drilling fluid column on the bottom hole pressure is obvious, and the like. The difficulty not only improves the difficulty of drilling, reduces the drilling speed, increases the drilling period and cost, but also restricts the efficient development of deep oil and gas resources. Therefore, how to increase the drilling speed of deep wells and ultra-deep wells and realize efficient development becomes the most important thing for the current petroleum exploration and development.
At present, the main means for improving the drilling speed is to adopt a composite drilling technology and install various impactors. Although the composite drilling technology can effectively break deep stratum rock and improve the drilling speed, the composite drilling technology has certain limitations and cannot better solve the pressure-holding effect at the bottom of a well. Due to the adoption of a large number of connecting and moving parts, various impactors have a plurality of weak points and are easy to damage in the actual drilling process. Meanwhile, the devices usually adopt buffering energy storage devices such as springs and the like, the springs are easy to cause energy waste in work, the impact work of the impactor is reduced, and the impact efficiency of the impactor is influenced. Therefore, the development and utilization of new tools are indispensable.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the problems in the prior art and provide a hydraulic oscillation longitudinal impactor which can fully utilize hydraulic energy to enable a drill bit to generate longitudinal vibration while rotating, so that the rock breaking efficiency is improved.
In order to solve the technical problem, the hydraulic oscillation longitudinal impactor comprises an outer cylinder and a lower connector which are connected with each other, wherein a mandrel is arranged in an inner cavity of the outer cylinder, a helical blade is arranged at the upper part of the mandrel, a plurality of mandrel water inlet holes are uniformly distributed on the circumference of the mandrel below the helical blade, a mandrel small-diameter section is arranged below the mandrel water inlet holes, the mandrel small-diameter section penetrates through a central hole of a partition plate, a mandrel shoulder is pressed on the upper end face of the partition plate, and the periphery of the bottom of the partition plate is supported above a middle convex ring of the outer cylinder; the upper part of the small-diameter section of the mandrel is symmetrically provided with upper mandrel pressure discharge holes, the bottom of the small-diameter section of the mandrel is symmetrically provided with lower mandrel pressure discharge holes, and the upper mandrel pressure discharge holes and the lower mandrel pressure discharge holes are distributed in a cross shape; an inner cover extending downwards is arranged below the partition plate, an annular discharge passage is arranged between the periphery of the inner cover and the inner wall of the outer barrel, and a top cover of the inner cover is screwed on the mandrel; the upper circumference of the inner cover is provided with an inner cover upper discharge hole which is flush with the mandrel upper discharge pressure hole, the lower circumference of the inner cover is provided with an inner cover lower discharge hole which is flush with the mandrel lower discharge pressure hole, and the inner cover upper discharge hole and the inner cover lower discharge hole are distributed in a cross shape; the inner cavity of the inner cover is provided with a punch hammer, and the punch hammer is sleeved on the periphery of the small-diameter section of the mandrel.
As an improvement of the utility model, the upper circumference of the punch hammer is symmetrically provided with punch hammer hydraulic grooves, the bottom of the punch hammer is provided with punch hammer tenons extending downwards, notches between the punch hammer tenons and the punch hammer hydraulic grooves are distributed in a cross shape, the punch hammer tenons are correspondingly embedded into the upper guide groove of the lower joint, and the circumference below the upper guide groove is uniformly provided with a plurality of lower joint water inlet holes.
As a further improvement of the utility model, the top of the mandrel is inserted in the center of the lower end face of the guide plate, the bottom of the guide plate is seated on the inner step of the upper part of the outer cylinder, and a plurality of axially through flow-adjusting holes are uniformly distributed along the circumference of the guide plate.
As a further improvement of the utility model, the top cover of the inner cover is positioned in the central hole of the convex ring in the middle of the outer cylinder.
As a further improvement of the utility model, the inner ends of the water inlet holes of the mandrels extend downwards obliquely to be communicated with the central hole of the mandrel respectively.
As a further improvement of the utility model, the inner ends of the water inlet holes of the lower joints respectively extend obliquely downwards to be communicated with the central hole of the lower joint.
As a further improvement of the utility model, the lower end of the outer cylinder is uniformly provided with outer cylinder tenons extending downwards, and each outer cylinder tenon is correspondingly inserted into the lower longitudinal groove of the lower joint.
As a further improvement of the utility model, the inner wall of the lower part of the outer cylinder is provided with an outer cylinder clamp spring groove, the circumference of the middle section of the lower joint is provided with a lower joint clamp spring groove, and clamp springs are embedded in the lower joint clamp spring groove and the outer cylinder clamp spring groove together.
Compared with the prior art, the utility model has the following beneficial effects: the upper end of a punching hammer is subjected to pressure holding, the lower end of the punching hammer is subjected to flow discharge, and the punching hammer goes down; the lower end of the punch hammer is pressed, the upper end of the punch hammer is discharged, and the punch hammer moves upwards. The impact hammer continuously and reciprocally impacts the upper end of the lower joint, so that high-frequency vibration of the drill bit is realized, and the rock breaking efficiency of the drill bit is greatly improved.
The impactor fully utilizes hydraulic energy, enables the drill bit to generate longitudinal vibration while rotating, and is accompanied with pulse jet cavitation, so that the impactor can assist in rock breaking and reduce the pressure holding effect at the bottom of a well. The device overall structure is simple, easily realizes, and the cost is lower, easily installs and operates in practical application, and the fault rate is low, is convenient for at the on-the-spot popularization and application in oil field.
Drawings
FIG. 1 is a cross-sectional view of a hydraulically oscillating longitudinal impactor of the utility model traveling downwardly.
FIG. 2 is a cross-sectional view of the hydraulic oscillating longitudinal impactor of the present invention as it travels upward.
Fig. 3 is a perspective exploded view of a hydrostatically oscillating longitudinal impactor in accordance with the present invention.
Fig. 4 is a perspective view of the outer tub in the present invention.
Fig. 5 is a perspective view of a mandrel of the present invention.
Fig. 6 is a perspective view of a ram of the present invention.
Fig. 7 is a perspective view of the inner cover of the present invention.
Fig. 8 is a perspective view of the lower joint of the present invention.
In the figure: 1. an outer cylinder; 1a, a convex ring in the middle of the outer barrel; 1b, outer cylinder tenon; 1c, an outer barrel clamp spring groove; 1d, clamping springs; 1e, an annular drainage channel; 2. a baffle; 2a, rectifying holes; 3. a mandrel; 3a, helical blades; 3b, a water inlet of the mandrel; 3c, pressure discharge holes are formed in the mandrel; 3d, discharging pressure holes below the mandrel; 4. a partition plate; 5. an inner cover; 5a, a discharge hole is formed in the inner cover; 5b, an inner cover lower drainage hole; 6. punching a hammer; 6a, a hydraulic groove of a punching hammer; 6b, inserting a tenon by using a punching hammer; 7. a lower joint; 7a. an upper guide groove; 7b, a lower connector water inlet; 7c, a lower joint clamp spring groove; lower longitudinal grooves.
Detailed Description
As shown in fig. 1 to 8, the hydraulic oscillation longitudinal impactor of the utility model comprises an outer cylinder 1 and a lower joint 7 which are connected with each other, wherein a mandrel 3 is arranged in an inner cavity of the outer cylinder 1, a helical blade 3a is arranged at the upper part of the mandrel 3, a plurality of mandrel water inlet holes 3b are uniformly distributed on the circumference of the mandrel below the helical blade 3a, a small-diameter section of the mandrel is arranged below the mandrel water inlet holes 3b, the small-diameter section of the mandrel penetrates through a central hole of a partition plate 4, a shoulder of the mandrel is pressed on the upper end surface of the partition plate 4, and the periphery of the bottom of the partition plate 4 is supported above a convex ring at the middle part of the outer cylinder 1; the upper part of the small-diameter section of the mandrel is symmetrically provided with upper mandrel pressure discharge holes 3c, the bottom of the small-diameter section of the mandrel is symmetrically provided with lower mandrel pressure discharge holes 3d, and the upper mandrel pressure discharge holes 3c and the lower mandrel pressure discharge holes 3d are distributed in a cross shape; an inner cover 5 extending downwards is arranged below the partition plate 4, an annular discharge passage 1e is arranged between the periphery of the inner cover 5 and the inner wall of the outer barrel 1, and a top cover of the inner cover 5 is screwed on the mandrel 3; the upper circumference of the inner cover 5 is provided with an inner cover upper discharge hole 5a which is parallel and level with the mandrel upper discharge hole 3c, the lower circumference of the inner cover 5 is provided with an inner cover lower discharge hole 5b which is parallel and level with the mandrel lower discharge hole 3d, and the inner cover upper discharge hole 5a and the inner cover lower discharge hole 5b are distributed in a cross shape; the inner cavity of the inner cover 5 is provided with a punch hammer 6, the punch hammer 6 is sleeved on the periphery of the small-diameter section of the mandrel, the upper circumference of the punch hammer 6 is symmetrically provided with punch hammer hydraulic grooves 6a, the bottom of the punch hammer 6 is provided with a punch hammer tenon 6b extending downwards, notches between the punch hammer tenons 6b and the punch hammer hydraulic grooves 6a are distributed in a cross shape, and the punch hammer tenon 6b is correspondingly embedded into an upper guide groove 7a of the lower connector 7, so that the punch hammer 6 can only reciprocate up and down, and rotation during impact is avoided; a plurality of lower joint water inlet holes 7b are uniformly arranged on the circumference below the upper guide groove 7a.
The top of the mandrel 3 is inserted in the center of the lower end face of the guide plate 2, the bottom of the guide plate 2 is seated on the inner step of the upper part of the outer barrel 1, and a plurality of axially through rectification holes 2a are uniformly distributed along the circumference of the guide plate 2.
The top cover of the inner cover 5 is positioned in the central hole of the convex ring 1a in the middle of the outer cylinder, so that an annular drainage channel 1e is naturally formed between the periphery of the inner cover and the inner wall of the outer cylinder and is used for drainage of an upper cavity or a lower cavity of the impact hammer.
The inner ends of the mandrel water inlet holes 3b extend obliquely downwards respectively to be communicated with the mandrel center hole, the inner ends of the lower connector water inlet holes 7b extend obliquely downwards respectively to be communicated with the lower connector center hole, and resistance in diversion flowing can be reduced.
As shown in fig. 1, 2 and 4, the lower end of the outer cylinder 1 is uniformly provided with outer cylinder tenons 1b extending downwards, and each outer cylinder tenon 1b is correspondingly inserted into a lower longitudinal groove 7d of the lower joint 7. The outer cylinder tenon 1b and the lower longitudinal groove 7d are mutually embedded, so that the radial positioning between the outer cylinder 1 and the lower joint 7 is realized, and the torque can be stably transmitted.
The inner wall of the lower part of the outer barrel 1 is provided with an outer barrel clamp spring groove 1c, the middle section circumference of the lower joint 7 is provided with a lower joint clamp spring groove 7c, and a clamp spring 1d is embedded in the lower joint clamp spring groove 7c and the outer barrel clamp spring groove 1c. The clamp spring 1d realizes axial positioning between the outer cylinder 1 and the lower connector 7, and prevents the lower connector 7 from falling off.
As shown in fig. 1, water flow is rectified by rectifying holes 2a of a flow guide plate 2 and uniformly flows to a helical blade 3a, the rotation of the helical blade 3a drives a mandrel 3 to rotate, when the water flow reaches a separation plate 4, the water flow enters a central hole channel of the mandrel from a mandrel water inlet hole 3b, when the mandrel 3 rotates until pressure discharge holes 3c on the mandrel are aligned with a hydraulic ram groove 6a, the water flow enters the hydraulic ram groove 6a from the pressure discharge holes 3c on the mandrel, and an outer port of the hydraulic ram groove 6a is sealed by an inner cover 5 to realize pressure holding; meanwhile, a seam at the lower end of the impact hammer mortise 6b is communicated with the lower discharge hole 5b of the inner cover and the annular discharge channel 1e, and a discharge channel is formed at the lower end of the impact hammer 6; at this stage, the upper end of the hammer 6 is held down, the lower end is discharged, and the hammer 6 moves downwards.
As shown in fig. 2, when the mandrel 3 is rotated until the lower pressure discharge hole 3d of the mandrel is aligned with the slit at the lower end of the hammer mortise 6b, the inner cover 5 blocks the slit at the lower end of the hammer mortise 6b from the outside to form a pressure build-up at the lower end of the hammer; meanwhile, the punch hammer 6 blocks the pressure discharge hole 3c on the mandrel, a hydraulic groove 6a of the punch hammer is communicated with a discharge hole 5a and an annular discharge channel 1e on the inner cover, and a discharge channel is formed at the upper end of the punch hammer 6; at this stage, the lower end of the hammer 6 is pressed, the upper end is discharged, and the hammer 6 moves upwards.
So along with the continuous rotation of dabber 3, the hammer 6 constantly reciprocates and strikes the upper end of lower clutch 7, has realized the high-frequency vibration of drill bit to the broken rock efficiency of drill bit has been improved greatly. The inner cover 5 is driven by the mandrel 3 to rotate, so that the turbulent flow effect on the drilling fluid can be realized, the drilling fluid flow generates a pulse effect, the rock breaking and the shaft bottom rock cleaning of a drill bit are facilitated, and the drilling speed is improved.
The upper pressure discharge hole 3c of the mandrel and the lower pressure discharge hole 3d of the mandrel are distributed in a cross shape, the upper discharge hole 5a of the inner cover and the lower discharge hole 5b of the inner cover are distributed in a cross shape, so that when the upper pressure discharge hole 3c of the mandrel is communicated with the upper discharge hole 5a of the inner cover, a notch between the plunger tenons 6b and the hydraulic groove 6a of the plunger are distributed in a cross shape, and when the upper cavity of the plunger is suppressed, the lower cavity is inevitably discharged to the annular discharge channel 1 e; when the lower cavity of the impact hammer is pressed, the upper cavity is necessarily drained.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention. In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention. Technical features of the present invention which are not described may be implemented by or using the prior art, and will not be described herein.
Claims (8)
1. A longitudinal impactor of water conservancy oscillation, includes interconnect's urceolus and lower clutch, its characterized in that: the inner cavity of the outer barrel is provided with a mandrel, the upper part of the mandrel is provided with a helical blade, a plurality of mandrel water inlet holes are uniformly distributed on the circumference of the mandrel below the helical blade, a small-diameter section of the mandrel is arranged below the mandrel water inlet holes, the small-diameter section of the mandrel penetrates through a central hole of the partition plate and presses the shoulder of the mandrel on the upper end face of the partition plate, and the periphery of the bottom of the partition plate is supported above a convex ring in the middle of the outer barrel; the upper part of the small-diameter section of the mandrel is symmetrically provided with upper mandrel pressure discharge holes, the bottom of the small-diameter section of the mandrel is symmetrically provided with lower mandrel pressure discharge holes, and the upper mandrel pressure discharge holes and the lower mandrel pressure discharge holes are distributed in a cross shape; an inner cover extending downwards is arranged below the partition plate, an annular discharge passage is arranged between the periphery of the inner cover and the inner wall of the outer barrel, and a top cover of the inner cover is screwed on the mandrel; the upper circumference of the inner cover is provided with an inner cover upper discharge hole which is flush with the mandrel upper discharge pressure hole, the lower circumference of the inner cover is provided with an inner cover lower discharge hole which is flush with the mandrel lower discharge pressure hole, and the inner cover upper discharge hole and the inner cover lower discharge hole are distributed in a cross shape; the inner cavity of the inner cover is provided with a punch hammer, and the punch hammer is sleeved on the periphery of the small-diameter section of the mandrel.
2. The hydrostatically oscillating longitudinal impactor of claim 1, wherein: the upper portion circumference symmetry of impact hammer is equipped with impact hammer hydraulic groove, the bottom of impact hammer is equipped with downwardly extending's impact hammer tenon, and notch between the impact hammer tenon is the cross with impact hammer hydraulic groove and distributes, the impact hammer tenon corresponds the embedding in the upper portion guide way of lower clutch, evenly be equipped with a plurality of lower clutch inlet openings on the circumference of upper portion guide way below.
3. The hydrostatically oscillating longitudinal impactor of claim 1, wherein: the top of the mandrel is inserted in the center of the lower end face of the guide plate, the bottom of the guide plate is seated on the inner step of the upper part of the outer barrel, and a plurality of axially through flow-adjusting holes are uniformly distributed along the circumference of the guide plate.
4. The hydrostatically oscillating longitudinal impactor of claim 1, wherein: the top cover of the inner cover is positioned in the central hole of the convex ring in the middle of the outer cylinder.
5. The hydrostatically oscillating longitudinal impactor of claim 1, wherein: the inner end of each mandrel water inlet hole extends downwards obliquely and is communicated with the central hole of the mandrel.
6. The hydrostatically oscillating longitudinal impactor of claim 2, wherein: the inner end of each lower joint water inlet hole respectively extends downwards in an inclined mode to be communicated with the central hole of the lower joint.
7. The hydrostatically oscillating longitudinal impactor according to any one of claims 1 to 6, characterized in that: the lower end of the outer barrel is uniformly provided with outer barrel tenons extending downwards, and each outer barrel tenon is correspondingly inserted into the lower longitudinal groove of the lower joint.
8. The hydrostatically oscillating longitudinal impactor of claim 7 wherein: the lower part inner wall of urceolus is equipped with urceolus jump ring groove, the middle section circumference of lower clutch is equipped with lower clutch jump ring groove, the jump ring has been inlayed jointly in lower clutch jump ring groove and the urceolus jump ring groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121814869.1U CN216277664U (en) | 2021-08-05 | 2021-08-05 | Hydraulic oscillation longitudinal impactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121814869.1U CN216277664U (en) | 2021-08-05 | 2021-08-05 | Hydraulic oscillation longitudinal impactor |
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| Publication Number | Publication Date |
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| CN216277664U true CN216277664U (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121814869.1U Active CN216277664U (en) | 2021-08-05 | 2021-08-05 | Hydraulic oscillation longitudinal impactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113802979A (en) * | 2021-08-05 | 2021-12-17 | 中石化石油工程技术服务有限公司 | Hydraulic composite vibration impact pipe column |
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2021
- 2021-08-05 CN CN202121814869.1U patent/CN216277664U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113802979A (en) * | 2021-08-05 | 2021-12-17 | 中石化石油工程技术服务有限公司 | Hydraulic composite vibration impact pipe column |
| CN113802979B (en) * | 2021-08-05 | 2024-02-23 | 中石化石油工程技术服务有限公司 | Hydraulic composite vibration impact pipe column |
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