Waterway control assembly and method for rope core drilling rig

Abstract

The invention discloses a waterway control assembly and method for a rope core drilling rig. The waterway control assembly comprises a rotatable through-cable water connector, a waterway control valveset, a conventional water connector and a connecting pipeline. The waterway control valve set is an intercommunication-type four-way pipe, corresponding three connecting openings are provided with two-way ball valves, the three two-way ball valves are opened and closed to control the connecting and disconnecting relation among the four connecting openings, and thus a waterway is controlled. The rotatable through-cable water connector comprises an end cover, a water sealing ring, a retaining ring, a mandrel, a rotating sleeve, a water pipe connector and a transition connector; the tail end ofthe mandrel is provided with a groove for allowing the water sealing ring and the retaining ring to be mounted in a spaced mode; the rotating sleeve is sleeved with the middle of the mandrel; and thewater pipe connector radially extending is connected to the rotating sleeve in a penetrating mode. Thus, according to the waterway control assembly and method, the structure is simple, operation is convenient, and the problems that in the prior art, the waterway control auxiliary time is long, and the labor intensity of workers and the personnel cost are high can be solved.

Description

Technical field

[0001] The invention relates to the field of core drilling, in particular to a waterway control assembly and method for a rope core drilling rig. Background technique

[0002] The characteristic of rope coring drilling is that when the core is filled with the inner tube, there is no need to lift the drill and the inner tube is retrieved from the drill pipe with a rope overwhelm to obtain the core. During the drilling process, water or mud is generally used as the medium, and water is sent to the bottom of the hole through the passage between the water joint and the mud pump. During normal drilling, because the drill pipe is a rotating part, it is necessary to connect a conventional water joint with the drill pipe, and then connect a hose between the conventional water and the mud pump. The core is mainly horizontal hole or upward hole. It is necessary to put the salvage device into the core drill pipe, connect the cable-type water joint, and then connect the wate...

Examples

Embodiment Construction

[0037] See figure 1 , Shows the structural schematic diagram of the waterway control assembly of the rope core drilling rig of the present invention.

[0038] The waterway control assembly of the rope core drilling rig includes a rotatable cable water joint 1, a waterway control valve set 2, a conventional water joint 3, and a connecting pipeline. The waterway control valve set 2 includes a first interface 201 and a second interface 202. , The third interface 203 and the fourth interface 204, the connecting pipeline includes a water inlet pipe 401, a drain pipe 402, a cable water joint connection pipe 403 and a conventional water joint connection pipe 404, wherein one end of the water inlet pipe 401 and The first port 201 is connected, and the other end is connected to the water outlet of the mud pump 8, one end of the drain pipe 402 is connected to the second port 202, and the other end is directly connected to the pool 7; the cable water joint connection pipe 403 One end is co...

Technical field

[0001] The invention relates to the field of core drilling, in particular to a waterway control assembly and method for a rope core drilling rig. Background technique

[0002] The characteristic of rope coring drilling is that when the core is filled with the inner tube, there is no need to lift the drill and the inner tube is retrieved from the drill pipe with a rope overwhelm to obtain the core. During the drilling process, water or mud is generally used as the medium, and water is sent to the bottom of the hole through the passage between the water joint and the mud pump. During normal drilling, because the drill pipe is a rotating part, it is necessary to connect a conventional water joint with the drill pipe, and then connect a hose between the conventional water and the mud pump. The core is mainly horizontal hole or upward hole. It is necessary to put the salvage device into the core drill pipe, connect the cable-type water joint, and then connect the wate...

Examples

Embodiment Construction

[0037] See figure 1 , Shows the structural schematic diagram of the waterway control assembly of the rope core drilling rig of the present invention.

[0038] The waterway control assembly of the rope core drilling rig includes a rotatable cable water joint 1, a waterway control valve set 2, a conventional water joint 3, and a connecting pipeline. The waterway control valve set 2 includes a first interface 201 and a second interface 202. , The third interface 203 and the fourth interface 204, the connecting pipeline includes a water inlet pipe 401, a drain pipe 402, a cable water joint connection pipe 403 and a conventional water joint connection pipe 404, wherein one end of the water inlet pipe 401 and The first port 201 is connected, and the other end is connected to the water outlet of the mud pump 8, one end of the drain pipe 402 is connected to the second port 202, and the other end is directly connected to the pool 7; the cable water joint connection pipe 403 One end is co...

Images