CN212003053U

CN212003053U - Downhole pressure-reducing and speed-increasing tool for deep well drilling

Info

Publication number: CN212003053U
Application number: CN202020556162.4U
Authority: CN
Inventors: 李应新
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2020-11-24
Anticipated expiration: 2030-04-15

Abstract

The utility model discloses a deep well drilling shaft bottom step-down speeding instrument, including drilling rod and the honeycomb duct that sets up two slopes on the drilling rod, two honeycomb duct symmetries set up, the top intercommunication of honeycomb duct is fixed with fixed pipe, and one side inner wall that two fixed pipes are close to each other all clamps the filter, has all seted up first rectangular hole on one side inner wall that two fixed pipes kept away from each other, and one side that the drilling rod was kept away from to the filter runs through corresponding first rectangular hole and extends to fixed outside of the tube and fixed mounting holds between the fingers the piece, has seted up the second rectangular hole on the top inner wall of first rectangular hole, and one side inner wall that two second rectangular holes kept away from each other all sets up to the opening. The utility model discloses simple structure, convenient operation is convenient for separate the fender to small-size rock fragment according to reality, and is convenient for change quick taking off it when the filter appears damaging, and is convenient for install the filter after changing fast, is favorable to using.

Description

Downhole pressure-reducing and speed-increasing tool for deep well drilling

Technical Field

The utility model relates to a step-down speeding instrument technical field especially relates to deep well drilling shaft bottom step-down speeding instrument.

Background

As the drilling process is continuously carried out and the drilling depth is continuously increased, a weighting material such as barite is required to be added into the drilling fluid to improve the density of the drilling fluid so as to achieve the purposes of stabilizing the well wall and protecting an oil-gas layer, indoor tests and drilling practices prove that the drilling fluid density is improved, the drilling speed is rapidly reduced by increasing the pressure difference between the liquid column pressure and the formation pressure in the well, the main reason is that the well bottom pressure difference has a pressure holding effect on the rock which is just crushed to influence the rock breaking efficiency of a drill bit, the mechanical drilling speed is reduced, the abrasion of the drill bit is accelerated, a deep well drilling well bottom hydraulic power pressure reducing and speed increasing tool is disclosed by a retrieval notice No. CN106801578A, the deep well drilling bottom hydraulic power pressure reducing and speed increasing tool mainly comprises a solid phase collector, a solid flow guide pipe, a turbine accelerator, a rotary sealer, a power connector, a cyclone separator, a, the deep well drilling well bottom hydraulic power pressure reduction speed acceleration tool has the following specific implementation mode: the high-pressure and high-speed drilling fluid is pumped underground from the ground, the drilling fluid impacts the turbo accelerator to provide the rotary power of the cyclone separator, the drilling fluid is separated by the cyclone separator, the solid phase in the drilling fluid enters an annular space between a drill rod and a stratum, the drilling fluid returns to the ground through the upward returning drilling fluid in the annular space, and the separated drilling fluid enters the drill bit downwards through the interior of the cyclone rotor.

However, the above patent still has certain disadvantages that the fixed diversion pipe is not convenient for blocking small-sized lump rock in the well, when the drill rod stops working in the well, the small-sized block rock in the well easily enters the drill rod through the fixed guide pipe under the action of self gravity, when the turbo accelerator in the drill rod rotates, the turbo accelerator is easy to collide with small-sized block rocks, the turbo accelerator is easy to damage after long-time collision, so that the moving speed of the solid particles in the drill rod is reduced, the efficiency of the drill rod for breaking rocks is reduced, the filter plate is fixedly sleeved in the fixed pipe in the prior art, the small-sized block rock is blocked, but when the filter plate is damaged after being used for a long time, the filter plate cannot be quickly taken down for maintenance, and the two conditions are combined, therefore, we propose a downhole pressure-reducing and speed-increasing tool for deep well drilling to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a deep well drilling shaft bottom pressure reducing and speed increasing tool.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a deep well drilling shaft bottom pressure reduction and speed acceleration tool comprises a drill rod and two guide pipes which are arranged on the drill rod in an inclined mode, wherein the two guide pipes are symmetrically arranged, the top ends of the guide pipes are communicated and fixed with fixed pipes, one side inner wall, close to each other, of each fixed pipe is clamped with a filter plate, one side inner wall, far away from each other, of each fixed pipe is provided with a first rectangular hole, one side, far away from the drill rod, of each filter plate penetrates through the corresponding first rectangular hole and extends out of the corresponding fixed pipe and is fixedly provided with a pinching block, the inner wall of the top of each first rectangular hole is provided with a second rectangular hole, one side inner wall, far away from each other, of each second rectangular hole is provided with an opening, one side of the top of each filter plate is fixedly provided with a triangular block, the top of each triangular block is provided with an inclined plane, equal fixed mounting has the fixed block on the one side inner wall that two second rectangular holes are close to each other, the top fixed mounting of fixed block has the montant, the top of montant extends to the top of the fixed pipe that corresponds, the third rectangular hole has been seted up to one side of montant, fixed mounting has same locating lever between the top inner wall of third rectangular hole and the bottom inner wall, the activity card is equipped with the kelly in the first draw-in groove, the nested first ball that has in bottom of kelly, the inclined plane phase-match of first ball and the triangle that corresponds, the top of kelly extends to the top and the fixed mounting of the triangle that corresponds has the connecting block, the connecting block cover is established on the locating lever that corresponds, fixed mounting has same spring between the top of connecting block and the top inner wall of the third rectangular hole that corresponds, spring movable.

Preferably, a pull ring is fixedly installed on one side of the top of the connecting block.

Preferably, the top of connecting block has been seted up the square hole, all inlays on four side inner walls of square hole and is equipped with two second balls, and the locating lever is located between the eight second balls that correspond, the outside rolling contact of second ball and the locating lever that corresponds.

Preferably, the outer side of the clamping rod is movably contacted with the inner wall of the corresponding first clamping groove.

Preferably, a second clamping groove is formed in the inner wall of one side, close to each other, of each of the two fixing pipes, and the inner wall of the second clamping groove is in movable contact with the outer side of the corresponding filter plate.

Preferably, the inner wall of the first rectangular hole is movably contacted with the outer side of the corresponding filter plate.

Compared with the prior art, the beneficial effects of the utility model are that:

through the arranged drill rod, the flow guide pipe, the fixed pipe, the filter plate, the first rectangular hole, the second rectangular hole, the triangular block, the first clamping groove, the fixed block, the vertical rod, the third rectangular hole, the positioning rod, the connecting block, the spring and the clamping rod are matched, the filter plate can separate small massive rocks, when the filter plate is damaged and needs to be replaced after being used for a long time, the pull ring is pulled upwards to drive the corresponding connecting block to move and compress the spring, the connecting block drives the corresponding clamping rod to be separated from the first clamping groove, the filter plate is pulled towards the direction far away from the drill rod and is taken down for replacement, when the filter plate is installed after replacement is completed, the filter plate is pushed towards the direction close to the drill rod, the filter plate drives the corresponding triangular block to move to extrude the first ball, the first ball drives the corresponding clamping rod to move upwards, the clamping rod drives the corresponding connecting, when the clamping rod is aligned with the corresponding first clamping groove, the spring force resets and drives the clamping rod to move downwards into the first clamping groove through the corresponding connecting block, so that the filter plate is fixed.

The utility model discloses simple structure, convenient operation is convenient for separate the fender to small-size rock fragment according to reality, and is convenient for change quick taking off it when the filter appears damaging, and is convenient for install the filter after changing fast, is favorable to using.

Drawings

Fig. 1 is a schematic structural view of a downhole depressurization and acceleration tool for deep well drilling according to the present invention;

FIG. 2 is a schematic cross-sectional view of portion A of FIG. 1;

fig. 3 is an enlarged schematic structural view of a portion B in fig. 2.

In the figure: 1 drilling rod, 2 honeycomb ducts, 3 fixed pipes, 4 filter plates, 5 first rectangular holes, 6 second rectangular holes, 7 triangular blocks, 8 first clamping grooves, 9 fixed blocks, 10 vertical rods, 11 third rectangular holes, 12 positioning rods, 13 connecting blocks, 14 springs and 15 clamping rods.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the deep well drilling shaft bottom pressure reduction and speed acceleration tool comprises a drill rod 1 and two guide pipes 2 which are obliquely arranged and are arranged on the drill rod 1, wherein the two guide pipes 2 are symmetrically arranged, the top ends of the guide pipes 2 are communicated and fixed with fixed pipes 3, the inner walls of one sides, close to each other, of the two fixed pipes 3 are respectively clamped with a filter plate 4, the inner walls of one sides, far away from each other, of the two fixed pipes 3 are respectively provided with a first rectangular hole 5, one side, far away from the drill rod 1, of the filter plate 4 penetrates through the corresponding first rectangular hole 5 to extend out of the fixed pipes 3 and is fixedly provided with a pinching block, the inner wall of the top of the first rectangular hole 5 is provided with a second rectangular hole 6, the inner walls of one side, far away from each other, of the two second rectangular holes 6 are respectively provided with an opening, one side of the, the triangular blocks 7 are positioned in the corresponding second rectangular holes 6, the top of each triangular block 7 is provided with a first clamping groove 8, the inner walls of the two adjacent sides of the second rectangular holes 6 are fixedly provided with a fixed block 9, the top of each fixed block 9 is fixedly provided with a vertical rod 10, the top end of each vertical rod 10 extends to the upper side of the corresponding fixed pipe 3, one side of each vertical rod 10 is provided with a third rectangular hole 11, the same positioning rod 12 is fixedly arranged between the inner wall of the top and the inner wall of the bottom of each third rectangular hole 11, a clamping rod 15 is movably clamped in each first clamping groove 8, the bottom end of each clamping rod 15 is nested with a first ball, the first ball is matched with the inclined plane of the corresponding triangular block 7, the top end of each clamping rod 15 extends to the upper side of the corresponding triangular block 7 and is fixedly provided with a connecting block 13, the connecting block 13 is nested on the corresponding positioning rod 12, the same spring 14 is fixedly arranged between the top of the connecting, spring 14 movable sleeve is established on corresponding locating lever 12, the utility model discloses simple structure, convenient operation is convenient for separate the fender to small-size rock fragment according to reality, and is convenient for quick take off it and change when filter 4 appears damaging, and is convenient for install filter 4 after changing fast, is favorable to using.

In the utility model, a pull ring is fixedly arranged on one side of the top of the connecting block 13, a square hole is arranged on the top of the connecting block 13, two second balls are embedded on the inner walls of four sides of the square hole, the positioning rod 12 is positioned between the corresponding eight second balls, the second balls are in rolling contact with the outer side of the corresponding positioning rod 12, the outer side of the clamping rod 15 is in movable contact with the inner wall of the corresponding first clamping groove 8, the inner wall of one side of the two fixing tubes 3 which are close to each other is provided with a second clamping groove, the inner wall of the second clamping groove is in movable contact with the outer side of the corresponding filter plate 4, the inner wall of the first rectangular hole 5 is in movable contact with the outer side of the corresponding filter plate 4, the utility model has simple structure and convenient operation, is convenient for blocking the small rock blocks according to reality, is convenient for rapidly taking down the filter plate 4 to replace when the filter plate 4 is damaged, and is, is beneficial to use.

The working principle is as follows: during the use, the setting of filter 4 can separate the fender to miniature cubic rock, when filter 4 appears damaging when using for a long time and needs the change, upwards stimulate the pull ring, the pull ring drives corresponding connecting block 13 and removes, connecting block 13 drives corresponding second ball and removes, second ball upwards rolls on corresponding locating lever 12, connecting block 13 compresses corresponding spring 14 in the in-process that removes, connecting block 13 drives corresponding kelly 15 and upwards removes, kelly 15 drives corresponding first ball and upwards removes, kelly 15 separates with corresponding first draw-in groove 8, this moment to keeping away from the pulling of drilling rod 1 and holding between the fingers the piece, hold between the fingers the piece and drive corresponding filter 4 and remove, filter 4 separates with corresponding fixed pipe 3, change filter 4;

when the filter plate 4 is installed after replacement is completed, the filter plate 4 is aligned with the corresponding first rectangular hole 5, the filter plate 4 is pushed towards the direction close to the drill rod 1, the filter plate 4 drives the corresponding triangular block 7 to move, when the inclined surface of the triangular block 7 is contacted with the corresponding first ball, the filter plate 4 is continuously pushed, so that the inclined surface of the triangular block 7 extrudes the corresponding first ball, under the action of the extrusion force, the first ball drives the corresponding clamping rod 15 to move upwards, the clamping rod 15 drives the corresponding connecting block 13 to move upwards, the connecting block 13 drives the corresponding second ball to move, the second ball rolls upwards on the corresponding positioning rod 12, the connecting block 13 compresses the corresponding spring 14 in the moving process, when the clamping rod 15 is aligned with the corresponding first clamping groove 8, the spring 14 in the compression state is reset at the moment, the elastic force of the spring 14 drives the corresponding connecting block 13 to move upwards, the connecting block 13 drives the corresponding clamping rod 15 to move downwards, the clamping rod 15 drives the corresponding first ball to move into the first clamping groove 8, meanwhile, the filter plate 4 is clamped with the corresponding second clamping groove, and under the effect that the clamping rod 15 is clamped with the corresponding first clamping groove 8, the filter plate 4 is fixed.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. Deep well drilling shaft bottom step-down speeding tool, including drilling rod (1) and honeycomb duct (2) that two slopes set up that set up on drilling rod (1), two honeycomb ducts (2) symmetry set up, the top intercommunication of honeycomb duct (2) is fixed with fixed pipe (3), its characterized in that, the one side inner wall that two fixed pipes (3) are close to each other all clamps filter (4), all seted up first rectangular hole (5) on the one side inner wall that two fixed pipes (3) kept away from each other, one side that filter (4) kept away from drilling rod (1) runs through corresponding first rectangular hole (5) and extends outside fixed pipe (3) and fixed mounting holds between the fingers the piece, set up second rectangular hole (6) on the top inner wall of first rectangular hole (5), the one side inner wall that two second rectangular hole (6) kept away from each other all sets up the opening, top one side fixed mounting of filter (4) has triangle piece (7), the top of the triangular block (7) is provided with an inclined plane, the two triangular blocks (7) are symmetrically arranged, the triangular blocks (7) are positioned in the corresponding second rectangular holes (6), the top of each triangular block (7) is provided with a first clamping groove (8), the inner walls of the two sides, close to each other, of the two second rectangular holes (6) are fixedly provided with fixed blocks (9), the top of each fixed block (9) is fixedly provided with a vertical rod (10), the top end of each vertical rod (10) extends to the upper side of the corresponding fixed pipe (3), one side of each vertical rod (10) is provided with a third rectangular hole (11), the same positioning rod (12) is fixedly arranged between the inner wall of the top and the inner wall of the bottom of each third rectangular hole (11), a clamping rod (15) is movably clamped in each first clamping groove (8), a first ball is nested at the bottom end of each clamping rod (15), and is matched with the inclined plane of the corresponding, the top end of the clamping rod (15) extends to the upper side of the corresponding triangular block (7) and is fixedly provided with a connecting block (13), the connecting block (13) is sleeved on the corresponding positioning rod (12), a same spring (14) is fixedly arranged between the top of the connecting block (13) and the inner wall of the top of the corresponding third rectangular hole (11), and the spring (14) is movably sleeved on the corresponding positioning rod (12).

2. The deep well drilling bottom hole pressure reducing and speed increasing tool according to claim 1, wherein a pull ring is fixedly installed on one side of the top of the connecting block (13).

3. The deep well drilling well bottom pressure reducing and speed increasing tool according to claim 1, wherein a square hole is formed in the top of the connecting block (13), two second balls are embedded in the inner walls of four sides of the square hole, the positioning rods (12) are located between the eight corresponding second balls, and the second balls are in rolling contact with the outer sides of the corresponding positioning rods (12).

4. The deep well drilling bottom hole pressure reduction and speed increase tool according to claim 1, wherein the outside of the clamping rod (15) is movably contacted with the inner wall of the corresponding first clamping groove (8).

5. The deep well drilling well bottom pressure reduction and speed acceleration tool according to claim 1, characterized in that the inner wall of one side of the two fixed pipes (3) close to each other is provided with a second clamping groove, and the inner wall of the second clamping groove is movably contacted with the outer side of the corresponding filter plate (4).

6. The downhole depressurization and acceleration tool according to claim 1, wherein the inner wall of the first rectangular hole (5) is in movable contact with the outside of the corresponding filter plate (4).