CN218479803U

CN218479803U - Hollow hydraulic oscillation coring tool

Info

Publication number: CN218479803U
Application number: CN202222356920.XU
Authority: CN
Inventors: 宁波; 李星辰; 欧芬兰; 李晶; 李博
Original assignee: Guangzhou Marine Geological Survey
Current assignee: Guangzhou Marine Geological Survey
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2023-02-14
Anticipated expiration: 2032-09-06

Abstract

The utility model discloses a cavity water conservancy oscillation coring tool belongs to well drilling coring field, include: salvage joint and hollow hydraulic oscillator, it establishes in hollow hydraulic oscillator the inner to salvage the adapter sleeve, salvage the joint including aggravating a salvage section of thick bamboo, pushing away and pressing piston, buffer spring, spring fixing base, salvage the lance, go up and press cap, fixing pin axle, backup pad, dust ring, sealing washer one, lip seal, rotation round pin axle and salvage colluding, hollow hydraulic oscillator includes turbine dish, bearing bar, wear-resisting cover one, thrust bearing, packing ring, wear-resisting ring, quill shaft, water conservancy diversion hole, top connection, lower clutch, disturbance axle, driving disk, quiet dish, wear-resisting cover two and sealing washer two. From this, the device not only can improve well drilling coring efficiency but also long service life, is difficult for causing rock core fracture, breakage at the during operation, influences the index of coring, has the practicality.

Description

Hollow hydraulic oscillation coring tool

Technical Field

The utility model relates to a coring tool especially relates to a cavity water conservancy oscillation coring tool, belongs to well drilling coring field.

Background

In the process of geological exploration or oil and gas drilling, in order to accurately acquire reservoir geological structures and various rock parameters, a coring tool is generally required to be utilized to drill the reservoir rocks to the ground for analysis and research, the coring efficiency is limited by the drilling speed, when a hard rock stratum is treated, the conventional drilling coring mainly depends on the rotary cutting of a drill bit, so that the coring operation is slow in footage, in order to improve the drilling speed of the hard rock, a tool for providing axial impact is added on a drilling string, for example, a novel double-nozzle structural hydraulic hammer is provided, the patent number is ZL02125436.2, the down-the-hole hydraulic hammer is directly added on the drill bit, the rock breaking efficiency of the drill bit is improved by applying axial impact force with certain frequency to the drill bit, but the service life of the down-the-hole hydraulic hammer is limited, and the core is easy to break and break due to vibration of the coring drill bit and the tool, so as to influence the coring index, therefore, a hollow hydraulic coring tool is provided for improvement.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a cavity water conservancy oscillation instrument of coring, this instrument of coring can improve well drilling efficiency of coring, has solved prior art well drill bit life weak point, and coring drill bit and instrument vibration easily cause rock core fracture, breakage, influence the technical problem of index of coring.

In order to solve the problems, the following technical scheme is provided:

the hollow hydraulic oscillation coring tool comprises a fishing joint and a hollow hydraulic oscillator, wherein the fishing joint is sleeved at the inner end of the hollow hydraulic oscillator and comprises a weighted fishing barrel, a pushing piston, a buffer spring, a spring fixing seat, a fishing spear, an upper pressing cap, a fixed pin shaft, a supporting plate, a dust ring, a first sealing ring, a lip-shaped seal, a rotating pin shaft and a fishing hook;

the hollow hydraulic oscillator comprises a turbine disc, a bearing rod, a first wear-resistant sleeve, a thrust bearing, a gasket, a wear-resistant ring, a hollow shaft, a flow guide hole, an upper joint, a lower joint, a disturbing shaft, a movable disc, a static disc, a second wear-resistant sleeve and a second sealing ring.

Furthermore, the sealing washer is provided with two altogether, lip seal sets up two and states position department between the sealing washer one, the round pin axle rotates and colludes all to be provided with two with salvaging, two salvage and collude fixed the cup jointing respectively on two round pin axle outer walls of rotating, the backup pad rotates and cup joints on the fixed pin axle outer wall, the fixed cover of spring fixing base is in buffer spring inner, buffer spring sets up at last pressure cap and pushes away between the piston, salvaging the lance and running through buffer spring, spring fixing base and the setting of last pressure cap.

Furthermore, wear-resisting cover cup joints in bearing lever inner, wear-resisting cover two sets up and keeps away from wear-resisting cover one side at the bearing lever, the packing ring sets up in thrust bearing one side, thrust bearing one side is kept away from to wear-resisting ring setting at the packing ring, the quill shaft sets up in wear-resisting ring opposite side position department, the axle that disturbs cup joints in bearing lever outer end, the driving disk cup joints in the axle that disturbs outer end, the quiet dish sets up in the driving disk outside.

Furthermore, the number of the flow guide holes is three, and the centers of the joints above the three flow guide holes are round dots and are distributed in a circular array.

Further, the turbine discs are provided with two groups.

Further, the first sealing ring is made of an O-shaped sealing ring.

Furthermore, the fishing joint and the hollow hydraulic oscillator are both made of all-metal materials.

Compared with the prior art, the beneficial effects of the utility model reside in that: the device adopts a turbine to drive a movable disc to rotate, and pressure relief holes on the movable disc and pressure relief holes on a static disc are periodically overlapped and staggered, so that the whole tubular column has periodic pressure change, and periodic axial vibration is generated;

compared with the prior art, the beneficial effects of the utility model reside in that: the turbine rotating shaft is provided with a special rolling friction structure, compared with a screw driving mode, the turbine rotating shaft adopts full rolling friction, the friction resistance of mechanical motion is lower, the turbine rotating shaft is suitable for occasions driven by ultra-low pressure fluid, and the service life of key parts is prolonged;

compared with the prior art, the beneficial effects of the utility model reside in that: the hollow hydraulic oscillation coring tool adopts an all-metal structure, has no rubber part, is suitable for complex and severe well conditions such as high temperature, saline water, acidity, corrosion and the like, can be mixed under different slurries, and prolongs the service life;

compared with the prior art, the beneficial effects of the utility model reside in that: the hollow hydraulic oscillation coring tool adopts a turbine driving mode, and the volumetric efficiency of the motor is high on the basis of ensuring low pressure consumption;

compared with the prior art, the beneficial effects of the utility model reside in that: the hollow hydraulic oscillation coring tool adopts a synchronous convolution structure, the parts of the tool are simple in shape, convenient to process and manufacture, small in size, light in weight, low in cost, high in precision, long in service life and easy to maintain.

Specific embodiments of the present invention are disclosed in detail with reference to the following description and drawings, indicating the manner in which the principles of the invention may be employed. It should be understood that the embodiments of the present invention are not so limited in scope. The embodiments of the invention include many variations, modifications and equivalents within the spirit and scope of the appended claims.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the internal structure of a fishing joint of a preferred embodiment of a hollow hydrostatically oscillating coring tool according to the present invention;

fig. 2 is a schematic diagram of the internal structure of a hollow hydroscillator in accordance with a preferred embodiment of the present invention;

fig. 3 is a top view of a preferred embodiment of a hollow hydrostatically oscillating coring tool in accordance with the present invention;

FIG. 4 is a schematic view of a preferred embodiment of a hollow hydro-oscillating coring tool in accordance with the present invention;

fig. 5 is a schematic illustration of a static plate configuration of a preferred embodiment of a hollow hydro-oscillating coring tool according to the present invention.

In the figure: 1. fishing the joint; 11. weighting the overshot; 12. pushing against the piston; 13. a buffer spring; 14. a spring fixing seat; 15. fishing out the spear; 16. pressing the cap upwards; 17. fixing a pin shaft; 18. A support plate; 19. a dust ring; 110. a first sealing ring; 111. lip sealing; 112. rotating the pin shaft; 113. fishing hooks; 2. a hollow hydroscillator; 21. a turbine disk; 22. a bearing rod; 23. wear-resisting cover one; 24. a thrust bearing; 25. a gasket; 26. a wear ring; 27. a hollow shaft; 28. a flow guide hole; 29. an upper joint; 210. a lower joint; 211. a disturbing shaft; 212. a movable disc; 213. a stationary disc; 214. a second wear-resistant sleeve; 215. and a second sealing ring.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1 to 5, the hollow hydraulic oscillation coring tool provided in this embodiment includes a fishing joint 1 and a hollow hydraulic oscillator 2, the fishing joint 1 is sleeved at an inner end of the hollow hydraulic oscillator 2, and the fishing joint 1 includes a weighted fishing cylinder 11, a pushing piston 12, a buffer spring 13, a spring fixing seat 14, a fishing spear 15, an upper pressing cap 16, a fixing pin 17, a supporting plate 18, a dust ring 19, a first sealing ring 110, a lip seal 111, a rotating pin 112, and a fishing hook 113.

The hollow hydraulic oscillator 2 comprises a turbine disc 21, a bearing rod 22, a first wear-resistant sleeve 23, a thrust bearing 24, a gasket 25, a wear-resistant ring 26, a hollow shaft 27, a diversion hole 28, an upper joint 29, a lower joint 210, a disturbing shaft 211, a movable disc 212, a fixed disc 213, a second wear-resistant sleeve 214 and a second sealing ring 215.

Before well drilling and coring, firstly, a coring tool is thrown into a coring pipe column, then, a fishing joint 1 is thrown into, the fishing joint 1 is fixed with a hollow hydraulic oscillator 2 through a supporting plate 18, a channel for drilling fluid to flow from a hollow shaft 27 is blocked, in the process of coring operation, a conventional fishing tool for a rope coring device is thrown in, after the fishing tool is locked with a fishing spear 15, the fishing tool is lifted, the supporting plate 18 is retracted, then the fishing tool is continuously put in, and the fishing hook 113 at the lower part of the fishing joint 1 is connected with the conventional coring device to lift the coring device out of a shaft, so that the continuous coring of the rope is realized.

Preferably, the number of the first sealing rings 110 is two, the lip seal 111 is arranged at a position between the two first sealing rings 110, the number of the rotating pin shaft 112 and the number of the fishing hooks 113 are two, the two fishing hooks 113 are respectively and fixedly sleeved on the outer walls of the two rotating pin shafts 112, the support plate 18 is rotatably sleeved on the outer wall of the fixed pin shaft 17, the spring fixing seat 14 is fixedly sleeved at the inner end of the buffer spring 13, the buffer spring 13 is arranged between the upper pressure cap 16 and the pushing piston 12, and the fishing spear 15 penetrates through the buffer spring 13, the spring fixing seat 14 and the upper pressure cap 16.

Preferably, the first wear-resistant sleeve 23 is sleeved at the inner end of the bearing rod 22, the second wear-resistant sleeve 214 is arranged at one side of the bearing rod 22 far away from the first wear-resistant sleeve 23, the washer 25 is arranged at one side of the thrust bearing 24, the wear-resistant ring 26 is arranged at one side of the washer 25 far away from the thrust bearing 24, the hollow shaft 27 is arranged at the other side of the wear-resistant ring 26, the disturbing shaft 211 is sleeved at the outer end of the bearing rod 22, the movable disc 212 is sleeved at the outer end of the disturbing shaft 211, and the static disc 213 is arranged at the outer side of the movable disc 212.

Preferably, there are three diversion holes 28, and the centers of the joints 29 above the three diversion holes 28 are circular dots and are distributed in a circular array.

Preferably, the turbine discs 21 are provided in two groups.

Preferably, the first seal ring 110 is made of an O-ring.

Preferably, the fishing joint 1 and the hollow hydraulic oscillator 2 are both made of all-metal materials.

The hollow hydraulic oscillator 2 not only improves the drilling speed, but also reduces the energy consumption compared with the traditional technology, simultaneously adopts an all-metal structure, is suitable for complex and severe well conditions such as high temperature, saline water, acidity, corrosion and the like, prolongs the service life, and is particularly suitable for the construction requirements of geological exploration and petroleum and natural gas drilling.

The utility model discloses an application principle and use flow:

after the fishing joint 1 is put into the hollow hydraulic oscillator 2, drilling fluid is forced to enter the annular space of the hollow hydraulic oscillator 2 from the diversion hole 28 of the upper joint 29, and the drilling fluid drives the turbine rotor to drive the movable disc 212 at the bottom of the bearing rod 22 to rotate after passing through a plurality of groups of turbine stator and rotor; in the rotating process of the movable disc 212, the flow channel holes on the movable disc 212 and the static disc 213 are periodically overlapped and staggered, so that the flow area of fluid is periodically increased and decreased, the periodic change of the area causes the periodic change of the fluid pressure according to the Bernoulli principle, and periodic vibration is generated and is axially transmitted to the upper drill rod and the lower drill rod, so that impact cutting force with certain strength is provided for a drill bit, the static friction force between the drill rod and the pipe wall is converted into the dynamic friction force, and the mechanical drilling speed is effectively improved.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

The present invention has been described in connection with the specific embodiments, but it should be clear to those skilled in the art that these descriptions are only illustrative and not intended to limit the scope of the present invention. Various modifications and alterations of this invention will become apparent to those skilled in the art based upon the spirit and principles of this invention, and such modifications and alterations are also within the scope of this invention.

Claims

1. The hollow hydraulic oscillation coring tool is characterized by comprising a fishing joint (1) and a hollow hydraulic oscillator (2), wherein the fishing joint (1) is sleeved at the inner end of the hollow hydraulic oscillator (2), and the fishing joint (1) comprises a weighted fishing barrel (11), a pushing piston (12), a buffer spring (13), a spring fixing seat (14), a fishing spear (15), an upper pressing cap (16), a fixed pin shaft (17), a supporting plate (18), a dust ring (19), a first sealing ring (110), a lip-shaped seal (111), a rotating pin shaft (112) and a fishing hook (113);

the hollow hydraulic oscillator (2) comprises a turbine disc (21), a bearing rod (22), a first wear-resistant sleeve (23), a thrust bearing (24), a gasket (25), a wear-resistant ring (26), a hollow shaft (27), a diversion hole (28), an upper joint (29), a lower joint (210), a disturbing shaft (211), a movable disc (212), a static disc (213), a second wear-resistant sleeve (214) and a second sealing ring (215).

2. The hollow hydraulic oscillating coring tool of claim 1, wherein two sealing rings (110) are provided, the lip seal (111) is provided at a position between the two sealing rings (110), two fishing hooks (113) and two rotating pins (112) are provided, the two fishing hooks (113) are respectively fixedly sleeved on outer walls of the two rotating pins (112), the support plate (18) is rotatably sleeved on an outer wall of the fixed pin (17), the spring fixing seat (14) is fixedly sleeved on an inner end of the buffer spring (13), the buffer spring (13) is provided between the upper pressure cap (16) and the pushing piston (12), and the fishing spear (15) is provided through the buffer spring (13), the spring fixing seat (14) and the upper pressure cap (16).

3. The hollow hydraulic oscillating coring tool of claim 1, wherein the first wear-resistant sleeve (23) is sleeved on the inner end of the bearing rod (22), the second wear-resistant sleeve (214) is arranged on one side of the bearing rod (22) away from the first wear-resistant sleeve (23), the gasket (25) is arranged on one side of the thrust bearing (24), the wear-resistant ring (26) is arranged on one side of the gasket (25) away from the thrust bearing (24), the hollow shaft (27) is arranged on the other side of the wear-resistant ring (26), the disturbing shaft (211) is sleeved on the outer end of the bearing rod (22), the movable disc (212) is sleeved on the outer end of the disturbing shaft (211), and the static disc (213) is arranged on the outer side of the movable disc (212).

4. The hollow hydroscillating coring tool of claim 1, wherein there are three said diversion holes (28), and said three diversion holes (28) are distributed in a circular array with a dot at the center of the upper joint (29).

5. A hollow hydro-oscillating coring tool as set forth in claim 1 wherein the turbine disks (21) are provided in two sets.

6. A hollow hydrostatically oscillating coring tool according to claim 1, wherein said first seal ring (110) is formed as an O-ring seal.

7. A hollow hydro-oscillating coring tool as claimed in claim 1 wherein the fishing joint (1) and the hollow hydro-oscillator (2) are all made of metal.