CN212079204U - A high-power drilling torque impact speed-up tool - Google Patents

Abstract

The utility model relates to a high-power drilling torque impact speed-up tool. A drill pipe joint, a torsion punch assembly and a drill bit joint are connected in sequence. The torsion punch outer body, the impact hammer and the reversing valve are concentric circular tubes. The impact hammer and the reversing valve are sleeved. The cavity in the reversing valve tube forms a central cavity. The impact hammer head and the starting hammer head are symmetrically arranged in the central cavity. The outer body, the impact hammer, the reversing valve, the upper cover seat and the lower cover seat are respectively provided with several inlet and outlet flow channel groups for the high pressure drilling fluid to enter and exit the starting chamber and the impact chamber. The action of the fluid completes the torsional circumferential impact function of the impact hammer. The impact function acts on the drill bit at close range without other torque consumption, and the effect of crushing and rock breaking is more obvious, which can increase the drilling speed and shorten the well construction period. , so that the economic benefits of drilling operations are greatly improved.

Description

A high-power drilling torque impact speed-up tool

technical field

The patent of the present invention relates to the technical field of drilling supporting equipment in the drilling industry, in particular to a high-power drilling torque impact speed-up tool.

Background technique

As the depth of the mining stratum increases, the mining stratum becomes more and more complex, and the mining difficulty increases, especially for the mining of deep wells, ultra-deep wells and horizontal wells, the drillability of deep strata and rocks is low, and the drilling process unit The damage to the drill bit by the footage increases, the depth of footage is slow, and the problems of high drilling costs are becoming more and more prominent. Therefore, improving drilling efficiency and reducing drilling costs are the key issues that need to be solved urgently in the oil drilling and production industry at home and abroad.

At present, the drilling tools to improve the drilling speed are mainly various impactors. The hydraulic impactor can effectively improve the unit footage time of the PDC bit, greatly improve the drilling efficiency, shorten the drilling cycle, effectively reduce the drilling cost and improve the economic benefits. However, the hydraulic impactor developed by some units at present has a complex structure, has a variety of moving parts, cannot withstand high pressure erosion, has large mechanical wear, low use efficiency of parts, short service life and poor stability during work.

Therefore, based on the above problems, to provide a drilling torque impact speed-up tool with a simple structure, a small number of parts, the parts are not easy to wear and can be resistant to erosion, and can solve the problems of short life of the existing impactor and too small single impact force. realistic meaning.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the existing technical problems, and proposes a high-power drilling torque that generates high-frequency, stable and uniform torsional circumferential impact torque, can be directly transmitted to the drill bit at a short distance, and has no additional consumption. Impact speed tool.

In order to achieve the above object, the present invention adopts the following technical scheme: a high-power drilling torsion impact speed-up tool, comprising a drill pipe joint, a torsion punch assembly and a drill bit joint, the drill pipe joint, the torsion punch assembly and the drill bit joint are connected in sequence, The torsion punch assembly includes the torsion punch outer body, the reversing valve, the impact hammer, the reducing nozzle and the upper and lower cover seats. The torsion punch outer body, the impact hammer and the reversing valve are concentric tubes. The impact hammer and the reversing valve are respectively sleeved to the inside. The cavity of the reversing valve tube forms a central cavity. The impact hammer is provided with two impact hammer heads and two starting hammer heads. The central cavity is set symmetrically, and the impact hammer head and the start hammer head are arranged in a staggered manner. The outer inner wall of the torsion punch corresponds to the inner wall of the impact hammer head to form an impact cavity for the axial torsional movement of the impact hammer head, and the outer wall of the reversing valve starts correspondingly. The hammer head is concave to form a starting cavity for starting the axial torsional motion of the hammer head. The torsion punch outer body, impact hammer, reversing valve, upper cover seat and lower cover seat are respectively provided with several sets for starting high-pressure drilling fluid in and out. For the inlet and outlet flow channel groups of the cavity and the impact cavity, the end faces at both ends of the impact hammer and the end faces at both ends of the reversing valve are horizontal planes and they are equal to each other. The upper cover seat and the lower cover seat of the reversing valve and the impact hammer, the drilling fluid through hole is opened on the upper cover seat, the reducing nozzle is installed on the lower cover seat, and the upper part of the central cavity is connected with the drill pipe joint through the drilling fluid through hole, The lower part of the central cavity is communicated with the drill bit joint through the reducing nozzle.

Preferably, the liquid inlet and outlet flow channel group includes a shock liquid flow channel, a priming liquid flow channel, a priming liquid water inlet groove, a shock liquid water inlet, a priming liquid discharge outlet, a shock liquid discharge outlet, a priming liquid discharge groove and a shock liquid discharge groove. The directional valve is provided with a shock liquid discharge groove and a shock liquid inlet and outlet, and the shock liquid inlet and outlet are located on both sides of the middle of the central cavity of the reversing valve. There is a priming fluid water inlet on the upper side, and the priming fluid water inlet is communicated with the priming fluid inlet tank on the outer body of the twist flush. The start-up fluid drain groove on the upper part is connected with the impact fluid drain outlet on the outer body of the torsion punch; the impact hammer is provided with an impact fluid flow channel for high-pressure drilling fluid to enter and exit the impact cavity on both sides of the impact hammer head. Both sides of the starting hammer head are provided with starting fluid flow channels for high-pressure drilling fluid to enter and exit the starting cavity.

Preferably, the shock fluid flow channel is in rotational communication with the shock liquid discharge tank, the shock liquid flow channel is in rotational communication with the shock liquid outlet of the reversing valve, and the priming liquid flow channel is rotationally connected with the priming liquid inlet tank.

Preferably, both ends of the outer body of the twist punch are respectively provided with upper and lower lock rings for limiting the upper and lower cover seats, the upper lock ring is located above the upper cover seat and the drill pipe joint, and the lower lock ring is located below the lower cover seat Between the drill bit joint, the upper and lower locking rings are respectively screwed on the twisting and punching outer body through the inner threads at both ends of the twisting and punching outer body.

Preferably, the upper surface of the upper cover seat is concave to form a first concave platform that matches the lower part of the upper lock ring, and the lower surface of the lower cover seat is concave to form a second concave platform that matches the upper part of the lower lock ring.

Preferably, the drill pipe joint is in the shape of a circular tube, and the two ends of the drill pipe joint are respectively provided with an upper end thread for connecting the drill pipe and a lower end thread for connecting the torsion punching outer body, and both the upper end thread and the lower end thread are high torque threads.

Preferably, the number of the shock liquid water inlets is 4, and the four shock liquid water inlets are connected with the four shock liquid flow channels in a one-to-one correspondence in rotation.

Preferably, both ends of the impact hammer and the reversing valve are perpendicular to the body, and neither the impact hammer nor the reversing valve are provided with shaft diameter positioning steps.

The beneficial effects of the present invention are as follows: 1) The tool can make the drill bit rotate and drill under the twisting of the drill pipe, and at the same time the drill bit also produces additional torsional circumferential impact function, thereby increasing the rock crushing efficiency and improving the ROP. At the same time, it can effectively eliminate the sticking, sticking and slipping phenomenon of the drill bit, and can effectively improve the service life of the drill bit;

2) The structure of this tool has been extremely simplified. There are only ten parts in total, and only two moving parts in the body. There are absolutely no bolts, balls, positioning pins, sealing rings, circlips, electrical components, etc. Therefore, it can effectively improve the service life, shorten the drilling cycle, and also improve the reliability of the system and the safety of absolutely preventing tool parts from falling off the well;

3) In addition, this tool can be used in conjunction with other downhole power drilling tools, even when the tool fails, drilling operations can still be performed, but the drilling efficiency is reduced. It can also adjust its performance by changing the pressure drop by changing the nozzle diameter according to different formation characteristics and drill bit performance;

4) Driven by the high-pressure drilling fluid, the torsional circumferential impact function of the impact hammer is completed by the action of the high-pressure drilling fluid while the drill bit is rotating and drilling. The impact function acts on the drill bit at close range without other torque consumption. The effect of crushed rock and rock breaking is more obvious, so the drilling speed is shortened and the well construction period is shortened, which greatly improves the economic benefits of drilling operations.

Description of drawings

Fig. 1 is the structural representation of a kind of high-power drilling torque impact speed-up tool;

Figure 2 is a schematic diagram 1 of the torsional impact of a high-power drilling torsional impact speed-up tool;

Figure 3 is a schematic diagram 2 of torsional impact of a high-power drilling torsional impact speed-up tool;

Figure 4 is a schematic diagram 3 of the torsional impact of a high-power drilling torsional impact speed-increasing tool;

Reference number:

1. Drill joint, 2. Lock ring, 3. Upper cover seat, 4. Reversing valve, 5. Impact hammer, 6. Torsion punch outer body, 7. Nozzle, 8. Lower cover seat, 9. Lower lock ring , 10. Bit joint, 201. Start-up fluid inlet tank, 202. Start-up fluid flow channel, 203. Start-up cavity, 204. Start-up fluid drain tank, 205. Impact fluid inlet, 206. Impact fluid flow channel, 207. Impact chamber , 208. Shock fluid drain tank.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

With reference to the accompanying drawings 1-4, a high-power drilling torque impact speed-up tool includes a drill pipe joint 1, a torsion punch assembly 6 and a drill bit joint 10. The drill pipe joint, the torsion punch assembly and the drill bit joint are connected in sequence, and the torsion punch assembly is connected in turn. The structure includes the outer body of the torsion punch, the reversing valve 4, the impact hammer 5, the diameter reducing nozzle 7 and the upper and lower cover seats. The outer body of the torsion punch, the impact hammer and the reversing valve are concentric tubes. The impact hammer and the reversing valve are respectively sleeved to the inside. The cavity of the reversing valve tube forms a central cavity. The impact hammer is provided with two impact hammer heads and two starting hammer heads. The central cavity is set symmetrically, and the impact hammers and the start hammers are alternately arranged in pairs. The inner wall of the torsion punch corresponds to the inner wall of the impact hammer to form an impact cavity 207 for the axial torsional movement of the impact hammer, and the outer wall of the reversing valve corresponds to the inner wall of the impact hammer. The starting hammer head is concave to form a starting cavity 203 for the axial torsional movement of the starting hammer head. The torsion punch outer body, the impact hammer, the reversing valve, the upper cover seat and the lower cover seat are respectively provided with a number of high-pressure drilling fluids. The inlet and outlet flow channel groups entering and leaving the starting chamber and the impact chamber, the end faces at both ends of the impact hammer and the end faces at both ends of the reversing valve are horizontal planes and the two are equal, and both can float and twist in the outer body of the torsion punch. The end faces of the two ends of the directional valve are respectively provided with an upper cover seat 3 and a lower cover seat 8 for the axial limit reversing valve and the impact hammer. The cover seat is provided with a drilling fluid through hole, and the lower cover seat is equipped with a reducing nozzle. The upper part of the central cavity is connected to the drill pipe joint through the drilling fluid through hole, and the lower part of the central cavity is connected to the drill bit joint through the reducing nozzle, and the high-pressure drilling fluid enters When the center cavity of the reversing valve is changed, a higher pressure drop is generated by the diameter change of the reducing nozzle to push the impact hammer to hit the outer body of the torsion punch. In order to adapt to the characteristics of different formations and drill bits, the diameter reducing nozzle can choose different aperture sizes, so that drilling The pressure drop generated by the variable diameter of the liquid through the variable diameter nozzle is more conducive to crushing rock.

A high-power drilling torque impact speed-up tool. Both ends of the impact hammer and the reversing valve are perpendicular to the body, and neither the impact hammer nor the reversing valve are provided with shaft diameter positioning steps to ensure that the workpiece can be in the torsion impact. The torsion floats inside the outer body, so that it can easily torsional impact circumferentially under the high pressure impact of drilling fluid, so as to ensure the balance of impact torque and the increase of impact force.

A high-power drilling torque impact speed-up tool, the inlet and outlet flow channel group includes a shock liquid flow channel 206, a start-up fluid flow channel 202, a start-up fluid inlet tank 201, a shock-fluid water inlet 205, a start-up fluid discharge outlet, a shock-fluid discharge outlet, The start-up fluid drain tank 204 and the shock fluid drain tank 208 are provided with a shock fluid drain tank and an impact fluid inlet and outlet on the reversing valve. The starting fluid inlet tank and the starting fluid drain tank are provided with a starting fluid water inlet on the upper cover base. The starting fluid water inlet is communicated with the starting fluid water inlet tank on the outer body of the twist flush, and the lower cover base is provided with a starting fluid discharge outlet and shock The liquid discharge outlet, the starting liquid discharge outlet is connected to the starting liquid discharge groove on the outer body of the twist flush, and the impact liquid discharge outlet is connected to the impact liquid discharge groove on the outer body of the twist flush; the impact hammer is provided with two sides of the impact hammer for high-pressure drilling. The impact fluid flow channel for the fluid to enter and exit the impact cavity, and the impact hammer has a starting fluid flow channel for the high-pressure drilling fluid to enter and exit the starting cavity on both sides of the starting hammer head.

The utility model relates to a high-power drilling torque impact speed-up tool. The percussion fluid flow channel and the percussion fluid discharge groove are connected in rotation; When the drilling fluid in the directional valve enters the starting cavity through the starting fluid flow channel on the impact hammer, the impact fluid flow channel on the impact hammer is aligned with the impact fluid outlet on the reversing valve, so that the high-pressure drilling fluid enters the impact cavity to complete the impact. Torsional circumferential impact of the hammer.

The utility model relates to a high-power drilling torque impact speed-increasing tool. The two ends of the outer body of the torsion punch are respectively provided with upper and lower locking rings for limiting the upper and lower cover seats. The upper locking ring 2 is located between the upper cover seat and the drill pipe joint. The lower locking ring 9 is located between the lower part of the lower cover base and the drill bit joint, and the upper and lower locking rings are respectively screwed to the twisting and punching outer body through the inner threads at both ends of the twisting and punching outer body.

A high-power drilling torsion impact speed-up tool, the upper surface of the upper cover seat is concave to form a first concave platform that matches the lower part of the upper lock ring, and the lower surface of the lower cover seat is concave to form a second concave that matches the upper part of the lower lock ring. tower.

A high-power drilling torsion impact speed-up tool, the drill pipe joint is in the shape of a circular tube, the two ends of the drill pipe joint are respectively provided with an upper end thread for connecting the drill pipe and a lower end thread for connecting the torsion punch outer body, the upper end thread and the lower end thread are both. For high torque thread.

A high-power drilling torque impact speed-up tool, the number of impact fluid inlets is 4, the four impact fluid inlets and the four impact fluid flow passages are connected in one-to-one correspondence, and after the impact hammer completes one-way impact, the reverse When the drilling fluid in the impact chamber is started, the impact fluid flow channel on the other side of the impact hammer will be discharged to the impact fluid drain groove on the reversing valve, and the impact fluid drain port on the lower cover will be discharged to the body through the drill bit joint. .

A high-power drilling torque impact speed-up tool, the high-pressure drilling fluid entering from the drill pipe joint flows through the starting fluid flow channel on the impact hammer through the starting fluid inlet groove on the outer body of the twisting punch, enters the starting cavity, and pushes the reversing direction. At the same time when the valve is turned, its impact fluid inlet is facing the impact fluid flow channel on the impact hammer, so that the high-pressure drilling fluid enters the impact chamber to complete the impact of the impact hammer. At the same time, the other starting fluid inlet groove on the outer body of the torsion punch is facing the starting fluid flow channel on the other side of the starting head of the impact hammer, so that the high-pressure drilling fluid enters the starting cavity on the other side, and the reversing is completed. The reverse start of the valve also causes the other impact fluid inlet on the reversing valve to meet the impact fluid flow channel on the other side of the impact hammer head, so that the high-pressure drilling fluid enters the impact chamber on the other side, completing the The reverse impact of the impact hammer on the outer body of the torsion punch is obtained. This reciprocating cycle completes the torsional circumferential impact function of the impact hammer on the outer body of the torsional impact, and the impact torque is transmitted to the drill bit at a close distance, which makes it easier to drill into the crushed rock and break the rock, which improves the drilling efficiency;

After completing the start-up and impact functions, the drilling fluid in the start-up cavity flows through the start-up fluid flow channel on the other side of the start-up head in the impact hammer, flows through the start-up fluid drain groove on the outer body of the torsion punch, and flows to the start-up fluid on the lower cover seat. Liquid drain outlet, through the drill joint to the body. When the high-pressure drilling fluid entering the impact chamber is reversely twisted, the other impact fluid flow channel on the impact hammer head outside the impact hammer faces the impact fluid drain groove on the upper reversing valve, and the drilling fluid passes through the impact fluid drain groove. It flows into the drain groove on the lower cover base, and drains to the drill bit joint to the outside of the body. Such a reciprocating cycle completes the drainage of the drilling fluid in the starting cavity and the shock cavity after completing the shock function.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims (8)

1. a high-power drilling torsion impact speed-up tool, comprising a drill pipe joint, a torsion punch assembly and a drill bit joint, the drill pipe joint, the torsion punch assembly and the drill bit joint are connected successively, it is characterized in that, the torsion punch assembly comprises a torsion punch The outer body, the reversing valve, the impact hammer, the reducing nozzle and the upper and lower cover seats. The outer body of the torsion punch, the impact hammer and the reversing valve are concentric tubes. The hammer and the reversing valve, the cavity in the reversing valve tube forms a central cavity, and the impact hammer is provided with two impact hammer heads and two starting hammer heads. The hammer head and the starting hammer head are alternately arranged in two pairs. The inner wall of the outer torsion punch corresponds to the inner wall of the impact hammer head to form an impact cavity for the axial torsional movement of the impact hammer head. The starting cavity for starting the axial torsional movement of the hammer head, the external body of the torsion punch, the impact hammer, the reversing valve, the upper cover seat and the lower cover seat are respectively provided with several inlet and outlet fluids for the high pressure drilling fluid to enter and exit the starting cavity and the impact cavity In the flow channel group, the end faces at both ends of the impact hammer and the end faces at both ends of the reversing valve are horizontal planes and they are equal to each other. The upper cover seat and the lower cover seat, the upper cover seat is provided with a drilling fluid through hole, the lower cover seat is provided with a variable diameter nozzle, the upper part of the central cavity is connected to the drill pipe joint through the drilling fluid through hole, and the lower part of the central cavity passes through the variable diameter nozzle Connect to the drill bit. 2. A high-power drilling torque impact speed-up tool according to claim 1, wherein the inlet and outlet fluid flow channel group comprises a shock fluid flow channel, a start-up fluid flow channel, a start-up fluid water inlet groove, a shock fluid water inlet, a start Liquid discharge outlet, shock liquid discharge outlet, start-up liquid discharge groove and shock liquid discharge groove. The reversing valve is provided with a shock liquid discharge groove and a shock liquid inlet and outlet. The shock liquid inlet and outlet are located on both sides of the middle of the central cavity of the reversing valve. The outer body of the twist flush is provided with a priming liquid inlet groove and a priming liquid discharge tank, the upper cover seat is provided with a priming liquid inlet, and the priming liquid inlet is communicated with the priming liquid inlet tank on the outer body of the twist flush, and the lower cover seat is provided with a priming liquid inlet. There are starting fluid discharge outlet and impact fluid discharge outlet. The starting fluid discharge outlet is connected to the starting fluid discharge groove on the outer body of the twist punch, and the impact fluid discharge outlet is connected to the impact fluid discharge groove on the outer body of the twist punch; Both sides are provided with percussion fluid flow passages for high-pressure drilling fluid to enter and exit the percussion cavity, and the impact hammer is provided with a starting fluid flow passage for high-pressure drilling fluid to enter and exit the starting cavity on both sides of the starting hammer head. 3. A high-power drilling torsional impact speed-up tool according to claim 2, characterized in that the percussion fluid flow channel and the percussion liquid drain groove are in rotational communication, and the percussion fluid flow channel is in rotational communication with the reversing valve percussion liquid outlet, The start-up fluid flow channel is in rotational communication with the start-up fluid inlet tank. 4. A high-power drilling torsional impact speed-up tool according to claim 1, wherein the two ends of the torsion punch outer body are respectively provided with upper and lower locking rings for limiting the upper and lower cover bases, and the upper locking ring The upper and lower locking rings are located between the upper cover seat and the drill pipe joint, and the lower locking ring is located below the lower cover seat and the drill bit joint. 5. A high-power drilling torsional impact speed-up tool according to claim 4, wherein the upper surface of the upper cover seat is concave to form a first concave platform that matches the lower part of the upper locking ring, and the inner surface of the lower cover seat is concave The concave forms a second concave platform that matches the upper part of the lower locking ring. 6. A high-power drilling torque impact speed-up tool according to claim 1, characterized in that the drill pipe joint is in the shape of a circular tube, and the two ends of the drill pipe joint are respectively provided with upper end threads for connecting drill pipes and for connecting torsion. The lower end thread of the punching outer body, the upper end thread and the lower end thread are high torque threads. 7. The high-power drilling torque impact speed-up tool according to claim 3, wherein the number of the impact fluid inlets is 4, and the four impact fluid inlets are in one-to-one correspondence with the four impact fluid flow channels Turn to connect. 8. The high-power drilling torque impact speed-up tool according to claim 1, wherein both ends of the impact hammer and the reversing valve are perpendicular to the body, and neither the impact hammer nor the reversing valve are provided with Shaft diameter positioning step.

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