CN2244096Y

CN2244096Y - Super high pressure underground pulse efflux booster

Info

Publication number: CN2244096Y
Application number: CN 96207357
Authority: CN
Inventors: 高纪念; 职黎光; 张胜
Original assignee: XI'AN PETROLEUM COLLEGE
Current assignee: XI'AN PETROLEUM COLLEGE
Priority date: 1996-04-02
Filing date: 1996-04-02
Publication date: 1997-01-01
Anticipated expiration: 2006-04-02

Abstract

The utility model relates to a super high pressure underground pulse efflux booster which is used for a petroleum well. The utility model is mainly composed of a turbine, a splined shaft, a thrust bearing, a liquid inlet tray, a large and a small two pistons, and a large and a small two steel jackets, the interior of the utility model is provided with a two-pole low speed turbodrill, a rotor shaft is provided with the thrust bearing, the lower end of the rotor shaft is provided with the splined shaft which is connected with the liquid inlet tray, the liquid inlet tray is driven to rotate, the liquid inlet tray is provided with a liquid inlet hole, the large piston is provided with a hole which is corresponding to the hole on the liquid inlet tray, one pulse is completed when the two holes are mutually communicated once, the large and a small two pistons are rigidly connected, and can be moved from top to bottom along the shaft following the liquid inlet tray. The utility model has the advantages of simple structure, fluent passage, and convenient operation.

Description

Super-pressure down-hole pulsing jet booster

The utility model belongs to the high-pressure spray technology in the oil drilling, is a kind of super-pressure down-hole pulsing jet booster that is used for downhole pressure increasing.

At present, three kinds of underground boosters are arranged: a kind of is the static pressure type underground booster, well that its outside dimension can not be greater than 7 " to commonly used 8 1/2 ", in order to guarantee that piston area is than enough big, just make runner narrow and complicated, processability of product structure is relatively poor, and manufacture difficulty is big; The drill bit booster is that oil drives the mud supercharging, is provided with waterpower worm gear, oil pump, oil pressure cylinder, accumulation of energy cylinder, directional control valve, reversal valve, oil sump etc., because component is various, and complex structure, reliability is relatively poor; Also having a kind of is that the device that produces high-voltage pulse or impact jet flow is to change by centrifugal force, centrifugal weight moves up and down, make blade from axially covering or open the hole on the orifice plate, thereby produce the pulse or the impact variation of mud pressure, this apparatus structure is complicated, and its blade has bigger machinery or hydraulic shock when the hole that covers or open on the orifice plate, motion and stress are all very complicated, can have a strong impact on the life-span.

The purpose of this utility model is to provide a kind of and is keeping used original ground of drilling well and underground equipment constant and realize superhigh pressure jetting drilling well downhole pressure increasing and underground booster simple in structure, that passage is smooth, easy to use.

The utility model is achieved in that it is by top connection 1, turbine stator 2, turbine rotor 3, rotor splined shaft 4, thrust bearing 5, liquid feeding disc 6, big piston 7, big steel bushing 8, compression spring 9, valve piston 10, little steel bushing 11, high compressed steel body 12, inlet valve 13, blow off valve 14, pressure piping 15, shell 16, lower contact 17 is formed, top connection 1 is arranged at the top in shell 16, turbine rotor 3 places on the rotor splined shaft 4, and cooperate with turbine stator 2, thrust bearing 5, liquid feeding disc 6, big piston 7 is socketed in respectively on the rotor splined shaft 4, liquid feeding disc 6 connects with big piston 7, liquid feeding disc 6, big piston 7 and be arranged in compression springs 9 below the big piston 7 with placing big steel bushing 8, valve piston 10 connects with the bottom of big piston and places little steel bushing 11, high pressure cylinder body 12 connects with big steel bushing 8 bottoms and is enclosed within on the little steel bushing 11, there is pressure piping 15 high compressed steel body 12 outside portions, pressure piping 15 and the inlet valve 13 that is contained in high compressed steel body, blow off valve 14 cooperates and connects with lower contact 17, have inlet opening on the liquid feeding disc 6, also have hole and corresponding on the big piston 7 with the hole on the liquid feeding disc 6.

Advantage of the present utility model is: highly pressurised liquid produces the pulsing jet rock-breaking and well-drilling by nozzle, and runner is unobstructed, and is simple in structure, manipulates, maintain and replace is all very convenient, and its general principles novelty, structure have practicality.

Fig. 1 is a structure chart of the present utility model.

Below in conjunction with accompanying drawing the utility model is described further:

The utility model is by top connection 1, turbine stator 2, turbine rotor 3, rotor splined shaft 4, thrust bearing 5, liquid feeding disc 6, big piston 7, big steel bushing 8, compression spring 9, valve piston 10, little steel bushing 11, high compressed steel body 12, inlet valve 13, blow off valve 14, pressure piping 15, shell 16, lower contact 17 is formed, top connection 1 is arranged at the top in shell 16, turbine rotor 3 places on the rotor splined shaft 4, and cooperate with turbine stator 2, thrust bearing 5, liquid feeding disc 6, big piston 7 is socketed in respectively on the rotor splined shaft 4, liquid feeding disc 6 connects with big piston 7, liquid feeding disc 6, big piston 7 and be arranged in compression springs 9 below the big piston 7 with placing big steel bushing 8, valve piston 10 connects with the bottom of big piston and places little steel bushing 11, high pressure cylinder body 12 connects with big steel bushing 8 bottoms and is enclosed within on the little steel bushing 11, there is pressure piping 15 high compressed steel body 12 outside portions, pressure piping 15 and the inlet valve 13 that is contained in high compressed steel body, blow off valve 14 cooperates and connects with lower contact 17, have inlet opening on the liquid feeding disc 6, also have hole and corresponding on the big piston 7 with the hole on the liquid feeding disc 6.

Technical conceive of the present utility model is that the top connection 1 of booster connects with drill collar, lower contact 17 connects with drill bit, the two poles of the earth low speed turbodrill 2 is equipped with in inside, 3 (or helicoid hydraulic motors), thrust bearing 5 is housed on the armature spindle 4, its lower end is that splined shaft 4 links to each other with liquid feeding disc 6 and drives liquid feeding disc 6 and rotates, have inlet opening on the liquid feeding disc 6, also have the hole on the big piston 7, corresponding with the hole on the liquid feeding disc 6, two holes communicate and once finish a pulse, greatly, valve piston 7,10 have just connected and can move up and down along axle with liquid feeding disc 6, utilize Bath to add the Hydrostatic Transfer Device principle and make the liquid supercharging, compression spring 9 makes greatly, valve piston 7,10 upwards reset, on the high compressed steel body 12 inlet valve 13 is arranged, the pressure piping 15 of blow off valve 14 and connection bit nozzle, and big steel bushing 8 is housed, little steel bushing 11, so that maintain and replace, turbine drives liquid feeding disc 6 and stablize inlet opening in the rotary course and overlaps with hole continuation on the big piston 7, the epicoele highly pressurised liquid is intermittently communicated with the cavity of resorption low pressure liquid, high, when low pressure is obstructed, big piston 7 is pressed valve piston 10, produces the highly pressurised liquid peak value of pulse; When high and low pressure communicates, large and small piston 7,10 resets under spring action, liquid feeding disc 6 stable rotation under rotor splined shaft 4 drives is controlled the break-make of high and low pressure chamber liquid by the distribution of secondary speed and inlet opening, thereby is controlled the frequency that large and small piston 7,10 moves up and down.

Claims

1. super-pressure down-hole pulsing jet booster that is used for oil drilling, be by top connection (1), turbine stator (2), turbine rotor (3), rotor splined shaft (4), thrust bearing (5), liquid feeding disc (6), big piston (7), big steel bushing (8), compression spring (9), valve piston (10), little steel bushing (11), high compressed steel body (12), inlet valve (13), blow off valve (14), pressure piping (15), shell (16), lower contact (17) is formed, it is characterized in that: top connection (1) is arranged at the top in shell (16), turbine rotor (3) places on the rotor splined shaft (4), and cooperate with turbine stator (2), thrust bearing (5), liquid feeding disc (6), big piston (7) is socketed in respectively on the rotor splined shaft (4), liquid feeding disc (6) connects with big piston (7), liquid feeding disc (6), big piston (7) and be arranged in compression spring (9) below the big piston (7) with placing big steel bushing (8), valve piston (10) connects with the bottom of big piston and places little steel bushing (11), high pressure cylinder body (12) connects with big steel bushing (8) bottom and is enclosed within on the little steel bushing (11), there is pressure piping (15) high compressed steel body (12) outside portion, pressure piping (15) and the inlet valve (13) that is contained in high compressed steel body, blow off valve (14) cooperates and connects with lower contact (17).

2. a kind of super-pressure down-hole pulsing jet booster that is used for oil drilling according to claim 1, it is characterized in that: liquid feeding disc has inlet opening on (6), also has hole and corresponding with the hole on the liquid feeding disc (6) on the big piston (7).