Rotary drilling drive gas lift reverse circulation down-the-hole hammer drilling machine and using method thereof
A down-the-hole hammer and rotary drilling technology, which is applied in the direction of the driving device, drill pipe, and drill pipe for drilling in the wellbore, and can solve the problem of high follow-up costs of the full casing and the inability to construct ultra-deep overburden into rock drilling Pile, borehole diameter is small, etc.
Inactive Publication Date: 2021-04-30
李新形
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Problems solved by technology
[0004] The first purpose of the present invention is to provide a rotary drill-driven gas-lift reverse circulation down-the-hole hammer drilling machine, which is a foundation rock soil drilling machine. The equipment of the present invention can construct large-diameter ultra-deep overburden into rock drilling; overcome The shortcomings of the prior art equipment, such as high follow-up cost of full casing, small borehole diameter, and inability to construct ultra-deep overburden bored piles into rock
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[0034] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings, but they do not constitute a limitation to the present invention, and are only examples. At the same time, the advantages of the present invention are clearer and easier to understand through the description.
[0035] Referring to the accompanying drawings, it can be seen that a rotary drill drives a gas-lift reverse circulation down-the-hole hammer drilling machine, including a cluster down-the-hole drill 1, a power head 2, a pile frame 3, a drill pipe 4, a slurry discharge pipe 5, an air intake pipe 6, and a wire rope 7 , inner faucet 8, inner air intake pipe 9, slag suction pipe 10, exhaust pipe 11;
[0036] The drill rod 4 is a multi-layer telescopic drill rod, and the top end of the inner layer drill rod can extend downward to the lower end of the adjacent outer layer drill rod under the action of gravity;
[0037] The power head 2 on the pi...
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The invention discloses a rotary drilling drive gas lift reverse circulation down-the-hole hammer drilling machine. The drilling machine comprises a rotary drill, a bundling down-the-hole hammer and an air compressor, wherein the rotary drill drives a drill bit to rotate, the down-the-hole hammer performs impact drilling, and slag discharging can be performed in a slurry gas lift reverse circulation mode. According to the rotary drilling drive gas lift reverse circulation down-the-hole hammer drilling machine, the defects that a down-the-hole hammer drill is small in drilling diameter, too large in vibration force and prone to hole collapse, pile casing follow-up is needed, and a large-diameter ultra-deep covering layer rock-entering drilling pile cannot be constructed in the prior art are overcome, and the defects that a large rotary drilling machine is heavy, high in manufacturing cost, low in construction speed and high in cost are overcome; the rotary drilling drive gas lift reverse circulation down-the-hole hammer drilling machine has the advantages that the device is simple and light, gas lift reverse circulation can be adopted for deslagging, slurry is adopted for protecting a wall, the pile casing follow-up is not needed, and an ultra-large-diameter rock-entering pile hole of a ultra-deep covering layer can be constructed. The invention further discloses a using method of the rotary drilling drive gas lift reverse circulation down-the-hole hammer drilling machine.
Description
technical field [0001] The invention relates to the technical field of submerged cluster hole hammer drilling rigs, and more specifically relates to a rotary drill-driven gas-lift reverse circulation submersible drilling hammer drilling rig. The invention also discloses a method for using the rotary drill-driven gas lift reverse circulation down-the-hole hammer drilling machine. Background technique [0002] Existing large-scale rotary drilling rigs and double-helix drilling rigs drive rotating DTH hammer drilling rigs. The slag discharge is air circulation, and the diameter of the drilling hole is small (generally not greater than 1 meter in diameter). Disadvantages of drilled piles in deep overburden layers; the existing rotary drilling rigs for rock penetration are heavy and expensive, and the construction speed is slow and high in cost; the gas-lift reverse circulation DTH hammer drilling rig invented in Japan has a complex drill bit structure and high cost. Particularl...
Claims
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IPC IPC(8): E21B4/14E21B21/00E21B15/00E21B19/084E21B4/16E21B21/16
CPCE21B4/14E21B4/16E21B15/00E21B19/084E21B21/00E21B21/16
Inventor 李晟李新形
Owner 李新形