CN2040529U

CN2040529U - Hydraulic jet impulse rotary driller

Info

Publication number: CN2040529U
Application number: CN 88213250
Authority: CN
Inventors: 蒋荣庆; 穆纪泽; 殷琨; 卢文阁; 周占江
Original assignee: CHANGCHUN GEOLOGIC COLLEGE
Current assignee: CHANGCHUN GEOLOGIC COLLEGE
Priority date: 1988-09-10
Filing date: 1988-09-10
Publication date: 1989-07-05

Abstract

The utility model relates to a hydraulic fluidic driller for the drilling operation of deep wells and ultra-deep wells. The utility model is composed of a line coring elastic caliper, a screw rod driller, a percussion hammer, an expanding bit, drill bits, a pressure regulating feed mechanism, bistable fluidic components, etc. The utility model solves the problems that the pressurization of the axle load of the driller is difficult, the life time of the driller is short, the drill holes are easily bent, etc. When the utility model is used, the coring work is not needed, and the drill bits do not need to be replaced, and the good drilling effect of the deep well is realized by using the utility model while the ambient pressure of the deep well is more than 400 barye after the test. The utility model has the advantages of labor saving, time saving and drilling efficiency improvement.

Description

Hydraulic jet impulse rotary driller

The utility model belongs to the special tool that deep-well, ultradeep well boring means, especially deep-well, ultradeep well medium-hard rock creep into.

In existing deep-well, ultradeep well medium-hard rock creep into, usually all adopt the drilling rod pressurization, make drilling tool be in pressure state, be difficult to improve rotating speed and pressurization, both used the diamond bit rate of penetration still very low, bit life is also very short, especially creeps into more obviously in CRYSTALLINE ROCKS and crystalline wafer paragneiss area, and hole deviation also easily takes place simultaneously.More bit change will propose well head to whole drill strings and drilling tool and could change in existing impact rotating drilling tool, has not only lost time but also waste of manpower, influences operating efficiency greatly.

The purpose of this utility model just is to solve and to overcome above-mentioned difficulties designed.

The jetting type impact rotating tool that surges is supplied with high pressure liquid stream by the ground water pump, be transported to pressure regulation feed mechanism 18 by drilling rod, enter interior pipe 17 by throttle orifice 16, size according to throttle orifice 16, top seal 2 and spiral pressure spring 3 are regulated pressure and feed speed, liquid stream makes helicoid hydraulic motor 5, rotor 15, bistable formula fluidic 6, jump bit 7, hammering block 8, basket 9, drill bit 10, cylinder sleeve 11, piston 12 grades are rotated together, liquid stream inflow bistable formula fluidic 6 control pistons 12 by helicoid hydraulic motor 5 move back and forth in cylinder sleeve 11, and drive the impact force that jump bit 7 bump hammering blocks 8 are produced and be delivered to hole bed rock stone through rock core 9 and drill bit 10, make rock produce broken and creep into.All drilling tool is suspended in the drill string by wire line coring bullet clamp 4, and pipe 17 and outer tube 13 rotated together in wire line coring bullet clamp 4 also drove simultaneously.As bit change more or take rock core, catch at the bottom of the available wire line coring fisher lower going-into-well and drag for spearhead 1 and whole drilling tool can be proposed well head in the lump, carry out bit change-over or take rock core.

Meter workload test proves that this drilling tool is suitable for the medium-hard rock area and creeps into surplus the field condition 100,000, and comparable rotary drilling bits is raised the efficiency more than 50 percent, is particularly useful for the deep well drilling of confined pressure more than 40MPa.When creeping into, creep into than the slow-speed of revolution and little axial compression, help prolonging drilling tool and bit life, use helicoid hydraulic motor 5 and can realize that top rod does not rotate, creep into power thereby reduce as adopting.Salvage drilling tool with the wire line coring fisher, more bit change, take rock core, reduced service working time, improved operating efficiency.

Description of drawings:

Accompanying drawing 1 is the jetting type churn drilling tools structure chart that surges: 1 drags for spearhead, 2 top seals, 3 spiral pressure springs, 4 wire line coring bullet clamp, 5 helicoid hydraulic motors, 6 bistable formula fluidics, 7 jump bits, 8 hammering blocks, 9 baskets, 10 drill bits, 11 cylinder sleeves, 12 pistons, 13 outer tubes, 14 stators, 15 rotors, 16 throttle orifices, pipe in 17,18 pressure regulation feed mechanisms, 19 reaming bits;

Accompanying drawing 2 is bistable formula fluidic inner-cavity structure figure.

Further formation of the present utility model is to be rotated synchronously by unit head drive drilling rod and reaming bit 19, and the rotation of surge jetting type impact rotating tool and reaming bit 19 is also asynchronous, normal this moving those methods of stopping that adopt in deep-well creeps into.The rotary power of jetting type impact rotating tool and the high pressure liquid stream that impact power is supplied with by the ground water pump of surging provides, liquid stream is transported to pressure regulation feed mechanism 18 by drilling rod, through diameter is the throttle orifice 16 of 20mm, top seal 2 that vulcanie is made and spiral pressure spring 3, regulate pressure and feed speed, pipe 17 lead-screw drilling tools 5 rotated in liquid was flowed through, drive bistable formula fluidic 6 simultaneously, jump bit 7, hammering block 8, basket 9, drill bit 10, cylinder sleeve 11, piston 12, rotor 15 turn round synchronously.When liquid stream flow nozzle width is 4mm, substrate is thick when being the bistable formula fluidic 6 of 28mm, then driving piston 12 moves back and forth in cylinder sleeve 11, and control the frequency of impact of jump bit 7 bump hammering blocks 8 simultaneously, impact passes to hole bed rock stone through basket 9 and drill bit 10, makes catalase and creeps into.

Claims

1, a kind of jetting type impact rotating tool that surges that is used for deep-well, ultradeep well probing is by dragging for spearhead 1, wire line coring bullet clamp 4, helicoid hydraulic motor 5, jump bit 7, hammering block 8, basket 9, drill bit 10, cylinder sleeve 11, piston 12, outer tube 13, stator 14, rotor 15, interior pipe 17, reaming bit 19 constitutes, the utility model is characterized in that being provided with pressure regulation feed mechanism 18, bistable formula fluidic 6;

2, it is characterized in that according to the said jetting type impact rotating drilling tool that surges of claim 1 pressure regulation feed mechanism 18 is by top seal 2, spiral pressure spring 3 and throttle orifice 16 constitute;

3, it is characterized in that according to the said jetting type impact rotating drilling tool that surges of claim 1 bistable formula fluidic nozzle width is 4mm, substrate is thick to be 2.8mm.