阅读说明：本技术 机械液压耦合提速装置 (Mechanical hydraulic coupling speed-raising device ) 是由 赵继斌 伊明 刘灵 王维周 段文广 张昕 谢天涯 王伟罡 于 2019-11-23 设计创作，主要内容包括：本发明涉及钻头振动技术领域,是一种机械液压耦合提速装置,其包括上接头、转换接头和芯轴,上接头的下端内侧与转换接头的上端外侧固定安装在一起,在上接头的上部内侧设有限位环。本发明结构合理,使用方便,钻井过程中,通过上堵头、限位导流堵头的螺旋角度组合调整,实现钻头扭矩的加载和大小调整。当钻井液流经工具时,由于上堵头没有内孔,流体进入上堵头的螺旋通道,靠流体能量推动上堵头发生转动,进而带动芯轴转动,将扭矩施加到钻头上。在钻头发生振动时,当振动程度超过预设值时,芯轴回缩,限位弹簧压缩,在振动减小时,限位弹簧恢复,将压缩的储能施加到钻头上,在减小振动、保护钻头的同时,节约钻机能量,提高机械钻速。(The invention relates to the technical field of drill bit vibration, in particular to a mechanical hydraulic coupling speed-up device which comprises an upper joint, an adapter and a mandrel, wherein the inner side of the lower end of the upper joint is fixedly installed with the outer side of the upper end of the adapter, and the inner side of the upper part of the upper joint is provided with a limit ring. The invention has reasonable structure and convenient use, and realizes the loading and the size adjustment of the torque of the drill bit by the combined adjustment of the spiral angles of the upper plug and the limiting diversion plug in the drilling process. When drilling fluid flows through the tool, because the upper plug does not have an inner hole, fluid enters the spiral channel of the upper plug, the upper plug is pushed to rotate by the energy of the fluid, and then the mandrel is driven to rotate, so that torque is applied to the drill bit. When the drill bit vibrates, when the vibration degree exceeds a preset value, the mandrel retracts, the limiting spring is compressed, when the vibration is reduced, the limiting spring recovers, the compressed energy storage is applied to the drill bit, the vibration is reduced, the drill bit is protected, meanwhile, the energy of the drilling machine is saved, and the mechanical drilling speed is improved.)

1. A mechanical hydraulic coupling speed-up device is characterized by comprising an upper connector, a conversion connector and a mandrel, wherein the inner side of the lower end of the upper connector is fixedly installed with the outer side of the upper end of the conversion connector, a limiting ring platform is arranged on the inner side of the upper portion of the upper connector, the outer side of the upper portion of the mandrel is in a step shape with a narrow top and a wide bottom, the lower side of the upper portion of the mandrel is sleeved in the conversion connector, the upper side of the upper portion of the mandrel is positioned in the upper connector and forms a ring cavity with the upper connector, an upper plug capable of plugging the inner cavity of the upper connector is fixedly installed at the upper end of the mandrel, the outer side of the upper plug abuts against the inner wall of the upper connector, a spiral channel capable of communicating the inner cavity of the upper connector with the ring cavity is arranged on the upper plug, a limiting flow guide plug is sleeved in the middle of the ring cavity, a, a return spring is arranged between the limiting diversion plug and the step on the lower side of the upper part of the mandrel, and a liquid outlet channel which can communicate the annular cavity with the inner cavity of the mandrel is arranged on the lower side of the upper part of the mandrel.

2. The mechanical hydraulic coupling speed increasing device as claimed in claim 1, wherein a wear-resistant stop ring is mounted at the stop ring table.

3. The mechanical hydraulic coupling speed increasing device as claimed in claim 1 or 2, wherein the upper plug is in an inverted barrel shape, and the upper end of the mandrel is fixedly installed on the inner side of the upper plug through threads.

4. The mechanical hydraulic coupling accelerating device of claim 1 or 2, wherein at least one sealing ring is installed between the lower side of the upper part of the mandrel and the adapter.

5. The mechanical hydraulic coupling speed increasing device as claimed in claim 3, wherein at least one sealing ring is installed between the lower side of the upper part of the mandrel and the adapter.

6. The mechanical hydraulic coupling speed increasing device as claimed in claim 1, 2 or 5, wherein the inner side of the lower end of the upper joint and the outer side of the upper end of the adapter are fixedly installed together through threads, the inner side of the upper end of the upper joint is provided with connecting threads, and the inner side of the lower end of the mandrel is provided with connecting threads.

7. The mechanical hydraulic coupling speed increasing device as claimed in claim 3, wherein the inner side of the lower end of the upper joint and the outer side of the upper end of the adapter are fixedly installed together through threads, the inner side of the upper end of the upper joint is provided with connecting threads, and the inner side of the lower end of the mandrel is provided with connecting threads.

8. The mechanical hydraulic coupling speed increasing device as claimed in claim 4, wherein the inner side of the lower end of the upper joint and the outer side of the upper end of the adapter are fixedly installed together through threads, the inner side of the upper end of the upper joint is provided with connecting threads, and the inner side of the lower end of the mandrel is provided with connecting threads.

9. The mechanical hydraulic coupling speed increasing device as claimed in claim 1, 2, 5, 7 or 8, wherein the lower end of the adapter is provided with a concave platform inside, and the lower part of the mandrel is provided with a limit ring platform outside and sleeved in the concave platform.

10. The mechanical hydraulic coupling speed increasing device as claimed in claim 6, wherein a concave platform is arranged on the inner side of the lower end of the adapter, and a limit ring platform sleeved in the concave platform is arranged on the outer side of the lower part of the mandrel.

Technical Field

The invention relates to the technical field of drill bit vibration, in particular to a mechanical hydraulic coupling speed-up device.

Background

In the drilling process, the drill bit is in high-frequency irregular vibration in the stratum cutting process, the service life of the drill bit is seriously shortened, the mechanical drilling speed is influenced, and the drilling cost is increased.

Disclosure of Invention

The invention provides a mechanical hydraulic coupling speed-up device, overcomes the defects of the prior art, and can effectively solve the problems that a drill bit is in high-frequency irregular vibration in the process of cutting a stratum, the service life of the drill bit is seriously shortened, the mechanical drilling speed is influenced, and the drilling cost is increased.

The technical scheme of the invention is realized by the following measures: a mechanical hydraulic coupling speed-up device comprises an upper connector, an adapter and a mandrel, wherein the inner side of the lower end of the upper connector is fixedly installed with the outer side of the upper end of the adapter, a limit ring platform is arranged on the inner side of the upper part of the upper connector, the outer side of the upper part of the mandrel is in a step shape with a narrow top and a wide bottom, the lower side of the upper part of the mandrel is sleeved in the adapter, the upper side of the upper part of the mandrel is positioned in the upper connector and forms a ring cavity with the upper connector, an upper plug capable of plugging the inner cavity of the upper connector is fixedly installed at the upper end of the mandrel, the outer side of the upper plug is abutted against the inner wall of the upper connector, a spiral channel capable of communicating the inner cavity of the upper connector with the ring cavity is arranged on the upper plug, a limit flow guide plug is sleeved in the middle part of the ring cavity, a spiral, a return spring is arranged between the limiting diversion plug and the step on the lower side of the upper part of the mandrel, and a liquid outlet channel which can communicate the annular cavity with the inner cavity of the mandrel is arranged on the lower side of the upper part of the mandrel.

The following is further optimization or/and improvement of the technical scheme of the invention:

and a wear-resistant baffle ring is arranged at the position of the limit ring table.

The upper plug is in an inverted barrel shape, and the upper end of the mandrel is fixedly arranged on the inner side of the upper plug through threads.

At least one sealing ring is arranged between the lower side of the upper part of the mandrel and the adapter.

The inner side of the lower end of the upper joint is fixedly installed with the outer side of the upper end of the conversion joint through threads, the inner side of the upper end of the upper joint is provided with connecting threads, and the inner side of the lower end of the mandrel is provided with connecting threads.

The inner side of the lower end of the adapter is provided with a concave table, and the outer side of the lower part of the mandrel is provided with a limit ring table sleeved in the concave table.

The invention has reasonable structure and convenient use, is connected between the drill collar and the drill bit during the drilling process, adjusts the spring force of the limiting spring and the reset spring according to the judgment of the stratum condition, adjusts the damping effect, and realizes the loading and the size adjustment of the torque of the drill bit by the combined adjustment of the spiral angles of the upper plug and the limiting diversion plug. In the drilling process, when drilling fluid flows through the tool, because the upper plug is not provided with an inner hole, the fluid enters the spiral channel of the upper plug, the upper plug is pushed to rotate by the energy of the fluid, and then the mandrel is driven to rotate, so that the torque is applied to the drill bit. When the drill bit vibrates, when the vibration degree exceeds a preset value, the mandrel retracts, the limiting spring is compressed, when the vibration is reduced, the limiting spring recovers, the compressed energy storage is applied to the drill bit, the vibration is reduced, the drill bit is protected, meanwhile, the energy of the drilling machine is saved, and the mechanical drilling speed is improved.

Drawings

FIG. 1 is a front view semi-sectional structural schematic diagram of the present invention.

The codes in the figures are respectively: the device comprises a base, a connector 1, a conversion connector 2, a mandrel 3, a limiting ring platform 4, a ring cavity 5, an upper connector inner cavity 6, an upper plug 7, a spiral channel 8, a limiting flow guiding plug 9, a limiting spring 10, a return spring 11, a mandrel inner cavity 12, a wear-resistant baffle ring 13, a sealing ring 14, a concave platform 15, a limiting ring platform 16 and a liquid outlet channel 17.

Detailed Description

The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.

In the present invention, for convenience of description, the description of the relative positional relationship of the components is described according to the layout pattern of fig. 1 of the specification, such as: the positional relationship of the upper, lower, etc. is determined in accordance with the layout direction of fig. 1 of the specification.

The technical scheme of the invention is realized by the following measures:

the invention is further described with reference to the following examples and figures:

as shown in the attached figure 1, the mechanical hydraulic coupling speed-up device comprises an upper joint 1, an adapter 2 and a mandrel 3, wherein the inner side of the lower end of the upper joint 1 is fixedly installed with the outer side of the upper end of the adapter 2, the inner side of the upper part of the upper joint 1 is provided with a limiting ring platform 4, the outer side of the upper part of the mandrel 3 is in a step shape with a narrow upper part and a wide lower part, the lower side of the upper part of the mandrel 3 is sleeved in the adapter 2, the upper side of the upper part of the mandrel 3 is positioned in the upper joint 1 and forms a ring cavity 5 with the upper joint 1, the upper end of the mandrel 3 is fixedly provided with an upper plug 7 capable of plugging an inner cavity 6 of the upper joint, the outer side of the upper plug 7 is abutted against the inner wall of the upper joint 1, the upper plug 7 is provided with a spiral channel 8 capable of communicating the inner cavity 6 of the ring cavity 5, the middle part of the ring cavity 5 is, a limiting spring 10 is arranged between the upper plug 7 and the limiting diversion plug 9, a return spring 11 is arranged between the limiting diversion plug 9 and the step on the lower side of the upper part of the mandrel 3, and a liquid outlet channel 17 capable of communicating the annular cavity 5 with the inner cavity 12 of the mandrel is arranged on the lower side of the upper part of the mandrel 3. In the drilling process, the invention is connected between a drill collar and a drill bit, the spring force adjustment of a limiting spring 10 and a return spring 11 is carried out through the judgment of stratum conditions, the damping effect is adjusted, and the loading and the size adjustment of the torque of the drill bit are realized through the combined adjustment of the spiral angles of an upper plug 7 and a limiting diversion plug 9. In the drilling process, when drilling fluid flows through the tool, because the upper plug 7 does not have an inner hole, the fluid enters the spiral channel 8 of the upper plug 7, the upper plug 7 is pushed to rotate by the energy of the fluid, and then the mandrel 3 is driven to rotate, so that the torque is applied to the drill bit. When the drill bit vibrates, when the vibration degree exceeds a preset value, the mandrel 3 retracts, the limiting spring 10 is compressed, when the vibration is reduced, the limiting spring 10 recovers, the compressed energy storage is applied to the drill bit, the vibration is reduced, the drill bit is protected, meanwhile, the energy of the drilling machine is saved, and the mechanical drilling speed is improved. The upper plug 7 and the limiting diversion plug 9 can adopt turbines as required.

The mechanical hydraulic coupling speed increasing device can be further optimized or/and improved according to actual needs:

as shown in fig. 1, a wear-resistant baffle ring 13 is arranged at the position of the limit ring table 4. By providing the wear-resistant stop ring 13, damage caused by upward collision of the upper plug 7 can be reduced.

As shown in fig. 1, the upper plug 7 is in an inverted barrel shape, and the upper end of the mandrel 3 is fixedly installed on the inner side of the upper plug 7 through threads. This facilitates installation and maintenance.

As shown in fig. 1, at least one sealing ring 14 is installed between the lower side of the upper part of the mandrel 3 and the adapter 2 for increasing the sealing performance.

As shown in the attached drawing 1, in order to facilitate installation and maintenance, the inner side of the lower end of the upper joint 1 and the outer side of the upper end of the adapter 2 are fixedly installed together through threads, the inner side of the upper end of the upper joint 1 is provided with connecting threads, and the inner side of the lower end of the mandrel 3 is provided with connecting threads.

As shown in fig. 1, a concave platform 15 is arranged on the inner side of the lower end of the adapter 2, and a limit ring platform 16 sleeved in the concave platform 15 is arranged on the outer side of the lower part of the mandrel 3. This provides a stop for the mandrel 3.

The above technical features constitute the best embodiment of the present invention, which has strong adaptability and best implementation effect, and unnecessary technical features can be increased or decreased according to actual needs to meet the requirements of different situations.