CN111706262A

CN111706262A - Dry well drilling machine

Info

Publication number: CN111706262A
Application number: CN202010766562.2A
Authority: CN
Inventors: 王言明
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2020-09-25

Abstract

The invention relates to the technical field of surface shallow layer well-digging equipment, in particular to a dry type well drilling machine, wherein a drilling hole and a well-descending pipe are synchronously performed, the diameter of the drilling hole is equal to that of the well-descending pipe, soil and sand in the drilling hole are not flushed out of the ground, and are extruded to the periphery of a well pipe by an annular impact drill bit and a heavy hammer impact drill bit, the soil volume of the drilling hole is 1/4 of the existing well-digging equipment, the well-digging process has no discharge of waste water and waste residue and pollution of noise, the situations of well collapse and drill bit fracture can not occur, the well-digging time is short, the manufacturing cost is low, and the success rate is high.

Description

Dry well drilling machine

Technical Field

The invention belongs to the technical field of surface shallow layer water pumping well equipment, and particularly relates to a dry type well drilling machine which is mainly applied to the construction fields of wells for farmland irrigation, wells for domestic water, water source heat pump water pumping wells and recharge wells.

Technical Field

The present pumping well equipment generally has four technical defects:

1. whether the positive circulation or the reverse circulation is adopted, a large amount of water is needed to flush soil and sand powder drilled by the drill bit out of the ground. Underground water resources are wasted, the occupied area of a construction site is large, the discharged slurry causes environmental pollution, and the construction can hardly be carried out in a dense building group;

2. the drilling hole and the well pipe are processed in two steps: firstly drilling a well hole, and then putting a well pipe. The condition of borehole collapse is easy to occur before a well casing is lowered, so that the scrapping of the drilled borehole is caused;

3. the drill bit is easy to break in the well under the condition of meeting stones, so that the drilled hole is scrapped;

4. typically, the diameter of the wellbore is 2 times the diameter of the tubing being run, resulting in a wellbore with 4 times the actual demand for the wellbore earth.

The four technical defects are caused by long time, low success rate and high cost of well drilling.

Disclosure of Invention

In order to solve four technical defects of the existing well drilling equipment, the invention provides a dry-type well drilling machine, a drilling hole and a well descending pipe are synchronously performed, the diameter of the drilling hole is equal to that of the well descending pipe, soil and sand in the drilling hole are not flushed out of the ground, and the soil and sand are extruded to the periphery of a well pipe by an annular impact drill bit and a heavy hammer impact drill bit.

The technical scheme adopted by the invention is as follows:

the dry well drilling machine consists of annular impact drill bit, heavy hammer impact drill bit, triangular drilling tower support, the first well pipe, clutch type winding engine, well pipe guiding frame, pulley, steel cable and winding engine clutch control rod.

The annular impact drill bit is fixed at the lower end of the first well pipe, and the heavy hammer impact drill bit is arranged in the well pipe and can slide up and down.

The power of the clutch type winch lifts the heavy hammer impact drill bit to the upper part of the well pipe through a steel wire rope and a pulley on the triangular drill tower support, then a clutch control rod of the winch is pulled, so that the gravity of the heavy hammer impact drill bit is separated from the winch, the heavy hammer impact drill bit freely falls to the bottom of the first well pipe under the action of the gravity, and the falling potential energy of the heavy hammer impact drill bit extrudes soil and sand below the heavy hammer impact drill bit and the annular impact drill bit to the periphery of the well pipe and drives the first well pipe to move downwards for a certain distance. After the hammer impact bit is reciprocated up and down a plurality of times, when the upper end of the first tubular is lowered to the vicinity of the horizon, the second tubular is connected to circulate, and then the third tubular … is connected until the tubular is lowered to a predetermined depth.

Preferably, the hammer impact drill is provided with a drill drainage groove to reduce the running resistance of water in the well pipe to the hammer impact drill.

The invention has the beneficial effects that:

1) in the well drilling process, soil and sand do not need to be flushed out of the ground by water, so that the occupied area is small and the construction is convenient;

2) the drilling of the well bore and the running of the well pipe are carried out synchronously, and the drilled well bore cannot collapse;

3) when the drill bit meets the stone, the drill bit can puncture through the stone under the action of the impact force of the heavy hammer, and the drill bit cannot be broken in the well;

4) the diameter of the well drilling hole is equal to that of the well drilling pipe, the earth volume of the well drilling hole is 1/4 of the existing well drilling equipment, and the energy consumption in the well drilling process is below 1/4 of the existing well drilling equipment;

5) no waste water and waste residue are discharged in the well drilling process, and noise pollution is avoided because the sound of impact of the heavy hammer on the drill bit is below the ground level.

Therefore, the dry-type well drilling machine has short well drilling time, low manufacturing cost and high success rate.

Drawings

FIG. 1 is a schematic view of a hammer impact bit of the present invention being lifted to an upper position of a well tubular;

FIG. 2 is a schematic view of the position of the percussion drill bit of the present invention falling to the bottom of the first well casing;

FIG. 3 is a top view of the percussion drill bit of the present invention shown in FIG. 2 along the line A-A.

Wherein: 1. the device comprises an annular impact drill bit, 2, a first well pipe, 3, a horizon, 4, a triangular drill tower support, 5, a well pipe guide frame, 6, a heavy hammer impact drill bit, 7, a drill bit drainage groove, 8, a pulley, 9, a steel wire rope, 10, a winch clutch control rod, 11 and a clutch type winch.

Detailed Description

Referring to the figure, the invention provides a dry-type well drilling machine, which comprises an annular impact drill bit 1, a heavy hammer impact drill bit 6, a triangular drill tower bracket 4, a first well pipe 2, a clutch type winch 11, a well pipe guide bracket 5, a pulley 8, a steel wire rope 9 and a winch clutch control rod 10.

An annular percussion drill bit 1 is fixed at the lower end of a first well tubular 2, and a hammer percussion drill bit 6 is arranged in the well tubular and slidable up and down.

The power of the clutch type winch 11 lifts the heavy hammer impact drill 6 to the upper part of the well pipe through a steel wire rope 9 and a pulley 8 on the triangular drill tower support 4, then the winch clutch control rod 10 is pulled to separate the gravity of the heavy hammer impact drill 6 from the clutch type winch 11, the heavy hammer impact drill 6 freely falls to the bottom of the first well pipe 2 under the action of the gravity, and the falling potential energy of the heavy hammer impact drill 6 extrudes the heavy hammer impact drill 6 and soil and sand below the annular impact drill 1 to the periphery of the well pipe and drives the first well pipe 2 to move downwards for a certain distance. After the hammer impact drill 6 reciprocates up and down for a plurality of times, when the upper end of the first well pipe 2 descends to the vicinity of the ground level 3, the hammer impact drill 6 is lifted to the uppermost end of the triangular drill tower bracket 4, the upper end of the second well pipe is inserted into the well pipe guide frame 5, the hammer impact drill 6 is placed in the second well pipe, and the lower end of the second well pipe is connected with the upper end of the first well pipe 2. After the hammer impact bit 6 is reciprocated up and down a plurality of times, the third joint pipe … is connected in the same manner until the pipe is lowered to a predetermined depth.

The hammer impact drill 6 is provided with a drill drainage groove 7 so as to reduce the running resistance of water in the well pipe to the hammer impact drill.

Claims

1. The dry well drilling machine consists of annular impact bit, heavy hammer impact bit, triangular drilling tower support, the first well pipe, clutch type hoister, well pipe guide frame, pulley, steel cable and hoister clutch control rod.

2. A dry well drilling machine according to claim 1, wherein the hammer impact drill is provided with a drill drainage groove.