CN205638344U - Pulse machinery striking formula well cementation vibrator - Google Patents

Abstract

The utility model provides a pulse machinery striking formula well cementation vibrator, its technical scheme is: be equipped with clamping ring (2) on body (1), piston locating lever (3) is connected in clamping ring (2), piston locating lever (3) one side is equipped with hydraulic cylinder seat cover (4), be equipped with pulse vibration piston (5) on piston locating lever (3), impact pole (7) is connected in pulse vibration piston (5), it is equipped with return spring (6) to strike pole (7) both sides, the lower part is equipped with first orifice sleeve (8) in body (1), be equipped with second orifice sleeve (10) in the lower part of hydraulic cylinder seat cover (4), install orifice sleeve shearing pin nail (9) on second orifice sleeve (10), bushing blocking ball (11) are passed through to second orifice sleeve (10) lower part, first orifice sleeve (8) sub -unit connection strikes the seat and holds in the palm blue (12), it asks blue (12) connection throttle cover to hold in the palm blue (13) to assault the seat. The utility model discloses beneficial effect: the reasonable practicality of structural design, the impact is big, propagates far relatively.

Description

Pulse machine impacting type well cementation vibrator

Technical field

This utility model relates to technical field of oil extraction equipment, especially pulse machine impacting type well cementation vibrator.

Background technology

After drilling, bore diameter is more than casing diameter, forms annular region in outside of sleeve, specifies model at annular region In enclosing, note and cement the well, in well cementing process, often because of cement mortar quality system with cement or cry by the process of other material filling Poor, the infiltration of Oil, Water, Gas in cement mortar condensation process, have impact on bonding quality and the intensity of Behavior of Hardened Cement Paste.

Summary of the invention

The purpose of this utility model is design pulse machine impacting type well cementation vibrator, and the problem overcoming above-mentioned existence carries For a kind of novel vibrating cementing unit, this device, when cementing operation, can occur to overlap tube vibration, feedwater on cement during returning Mud increases energy, makes cement mortar granule preferred arrangement, it is ensured that cement self is closely knit and tamps the recess on the borehole wall, reduces The penetrating power of Behavior of Hardened Cement Paste, improves the cementing contact force of rock and sleeve pipe, thus is greatly improved cementing quality.

The purpose of this utility model is achieved in that body is provided with pressure ring, and pressure ring connects piston location bar, and piston is fixed Bar side, position is provided with fluid cylinder cover for seat, and piston location bar is provided with impulse oscillation piston, and impulse oscillation piston connects impact bar, impact Bar both sides are provided with return spring, and bottom is provided with first throttle set in the body, are provided with the second throat bushing in the bottom of fluid cylinder cover for seat, Second throttling puts and is provided with throat bushing shear pin, and the second throat bushing bottom is by telescopic joint blocking ball, first throttle set It is blue that bottom connects impact receptacle, and it is blue that impact receptacle indigo plant connects throat bushing torr.

This utility model beneficial effect: reasonable in design is practical, the pulse machine impacting type well cementation controlled damping of vibrator The dynamic time started, other procedures will not be affected because of vibration, improve device reliability；It is designed with blocking preventer, can Prevent the blocking that is that cause because cement mortar or drilling fluid be not clean from suppressing pump accident, it is ensured that construction is normal；Impact force is big, propagates relatively Farther out.

Accompanying drawing explanation

Accompanying drawing 1 is structural representation of the present utility model.

Detailed description of the invention

As it is shown in figure 1, pulse machine impacting type well cementation vibrator, mainly by body 1, pressure ring 2, piston location bar 3, fluid cylinder Cover for seat 4, impulse oscillation piston 5, return spring 6, impact bar 7, first throttle set 8, throat bushing shear pin the 9, second throat bushing 10, blocking ball 11, impact receptacle blue 12 and throat bushing torr blue 13 are constituted；Body 1 is provided with pressure ring 2, and pressure ring 2 connects piston location Bar 3, bar 3 side, piston location is provided with fluid cylinder cover for seat 4, and piston location bar 3 is provided with impulse oscillation piston 5, impulse oscillation piston 5 Connecting impact bar 7, impact bar 7 both sides are provided with return spring 6, are provided with first throttle set 8 in body 1 middle and lower part, in fluid cylinder cover for seat 4 Bottom be provided with the second throat bushing 10, the second throat bushing 10 is provided with throat bushing shear pin 9, the second throat bushing 10 bottom lead to Crossing telescopic joint blocking ball 11, first throttle overlaps 8 bottoms and connects impact receptacle indigo plant 12, and it is blue that impact receptacle blue 12 connects throat bushing torr 13。

Technological process of the present utility model:

Pulse machine impacting type well cementation vibrator is respectively arranged at two ends with interconnective pin and box sub, is installed on bunch tube and floats Hoop upper position, this device top is joined directly together with sleeve pipe, with casing string G.I.H, under complete enter sleeve pipe Posterior circle drilling well Liquid, puts in sleeve pipe by blocking ball 11 before cementing, starts to carry out cementing job by design；Ball arrives first throttle set 8 Time, blocking lower, liquid can only flow out through top throttle orifice, makes throttle orifice inside and outside formation pressure reduction, impulse oscillation piston 5 Jerky motion impact receptacle indigo plant 12, makes sleeve pipe vibrate, makes liquid inside and outside throttle orifice pass through impulse oscillation simultaneously downwards Piston 5 intercommunicating pore connects, pressure differential collapses, and impulse oscillation piston 5 is return under return spring 6 acts on, and communicating passage is cut off, joint Pressure reduction is formed again inside and outside discharge orifice, impulse oscillation piston 5 downward jerky motion impact receptacle indigo plant 12 again, clash into and so forth Impact receptacle indigo plant 12 makes body 1 that continuous shaking to occur, if having special circumstances blocking throttle orifice, set overpressure raises, throttling Set shear pin 9 is cut off, and first throttle set 8 falls into throat bushing torr indigo plant 13, re-forms passage, keeps fluid normal circulation.

Claims (1)

1. pulse machine impacting type well cementation vibrator, it is characterised in that: body (1) is provided with pressure ring (2), and pressure ring (2) connects lives Plug location bar (3), bar (3) side, piston location is provided with fluid cylinder cover for seat (4), and piston location bar (3) is provided with impulse oscillation piston (5), impulse oscillation piston (5) connects impact bar (7), and impact bar (7) both sides are provided with return spring (6), in body (1) middle and lower part Being provided with first throttle set (8), be provided with the second throat bushing (10) in the bottom of fluid cylinder cover for seat (4), the second throat bushing (10) is upper to be installed Having throat bushing shear pin (9), the second throat bushing (10) bottom is by telescopic joint blocking ball (11), under first throttle set (8) It is blue (12) that portion connects impact receptacle, and it is blue (13) that impact receptacle blue (12) connects throat bushing torr.