CN200992971Y

CN200992971Y - Pressure pulse blockage removal controller

Info

Publication number: CN200992971Y
Application number: CN 200620161476
Authority: CN
Inventors: 曹正权; 张建国; 韩鹏; 孙岩; 高成元; 王志刚
Original assignee: Sinopec Shengli Oilfield Co Gudao Oil Extraction Plant
Current assignee: Sinopec Shengli Oilfield Co Gudao Oil Extraction Plant
Priority date: 2006-12-14
Filing date: 2006-12-14
Publication date: 2007-12-19
Anticipated expiration: 2016-12-14

Abstract

The utility model relates to a controller for the pressure pulse blocking remover, which consists of an adaptor, a shell, a continuous sphere, a sphere obturating ring, a rotating shaft, a shaft sealing sheath, a handle and a lower adaptor, two annular sealing seats are symmetrically arranged at the joint of the top and base arched spherical surfaces and the sphere through hole, the sealing seats are embedded inside with spherical sealing rings that are right angled outside and arched inside, a position shaft is positioned at the lower end of a sphere with the same axle as the rotating shaft, the position shaft is inserted in the corresponding concave hole of the shell, the sphere is suspended pasted on the upper and lower sealing rings. The utility model has the advantages of simple structure, good airtightness, small torsion, the switch is agile and lightweight, meeting the requirement of pressure pulse blocking removing, promising the implementation of pressure pulse blocking removing.

Description

Pressure pulse de-plugging controller

One, technical field

The utility model relates to a kind of pressure pulse de-plugging controller that de-plugging of well is used in the oil field development.

Two, background technology

The vibrating oil production technology comes from five sixties of 20th century, originates from people at first and observes the significant change that earthquake causes near oil-water well output, thereby propose to adopt method for oscillating to improve the oil production method of well oil output.Under this guide of theory, the indoor theory research and the application study of vibrating oil production mechanism have been launched both at home and abroad in succession.Mode difference according to the excited vibrational that is adopted has all obtained progress in various degree in many aspects such as sound wave, ultrasonic wave, electro-hydraulic impulse, electromagnetism, high energy gas blast, hydraulic oscillation and artificial earthquakes respectively, and has obtained certain effect in successively using at the scene.The U.S. has certain advantage with aspects such as ultrasonic wave, sound wave and high energy gas.Then all there is greater advantage in the former Soviet Union in the theoretical research and the practical application of aspects such as artificial earthquake, electro-hydraulic impulse, ultrasonic wave and hydraulic oscillation.The domestic research of carrying out this respect is later relatively, the 80s and 90s in 20th century just by introducing and independent development combines and makes encouraging progress at several different directions, especially obtained the achievement of a collection of theoretical research and application study later in the nineties in fields such as artificial earthquake, hydraulic oscillation, high energy gas, sound wave and ultrasonic wave.The vibrating oil production device majority of the U.S. is with sound wave, and ultrasonic to involve mechanical oscillation be main.The circulating pressure pulse release device of Russia except that hydraulic oscillation then realized pressure pulse with the down-hole oscillator, and domestic low-frequency oscillation sound wave etc. are all realized de-plugging with underground vibrating.And the utility model has been realized in well head control, need not move tubing string and can carry out the de-plugging processing to processing layer.

Three, summary of the invention

The purpose of this utility model provides a kind of pressure pulse de-plugging controller, solves motionless oil well pipe, realizes the well head control problem of oil well pulse release.

The technical solution of the utility model realizes in the following manner:

The utility model by top connection, housing, in logical spheroid, ball seal circle, rotating shaft, rotating shaft sealing cover, handle and lower contact form, it is characterized in that being arranged with two ring sealing bases at the sphere of arc up and down of housing and the junction of spheroid through hole, be inlaid with outer in the seal receptacle for being the spherical sealing ring of arc in the right angle, with the spheroid next top of rotating shaft concentric, be provided with locating shaft, locating shaft is inserted in the corresponding shell shrinkage pool, and spheroid is outstanding to be attached to up and down on the two seals circle.

Compared with the prior art the utility model has the following advantages:

1, simple in structure, good seal performance, moment of torsion is little, switch is light flexibly.

2, satisfy the control requirement that produces the pressure pulse de-plugging, guaranteed the enforcement of pressure pulse de-plugging process.

Four, description of drawings

Fig. 1-structural representation of the present utility model

The local enlarged diagram at A place among Fig. 2-Fig. 1

The local expression symbol that amplifies of logical spheroid 4-ball seal circle 5-rotating shaft 6-rotating shaft sealing cover 7-handle A-among the 1-top connection 2-housing 3-among the figure

Five, the specific embodiment

For further disclosing the technical solution of the utility model, elaborate by embodiment below in conjunction with Figure of description:

When using with top connection 1, body 2, in logical spheroid 3, ball seal circle 4, the axostylus axostyle 5 of outwarding winding, axostylus axostyle sealing shroud 6, handle 7, lower contact 8 assembled in sequence, top connection 1 is connected with the oil well casing gate by a threeway, atmosphere is passed through in lower contact.The side mouth of threeway connects energization equipment such as high pressure compressor.Connect pressure monitoring and data handling system in another sleeve gate outlet, after the construction pipeline connects well, close down oil pumper in bottom dead centre, close the oil pipe gate and open sleeve gate, closing presure pulse release controller, start high pressure compressor and inject gases at high pressure execution energization process to the oil jacket annular space, when annular pressure increases to institute's required value, open controller, carry out stress-relief process, this process can be controlled flexibly according to de-plugging required pressure impulse amplitude, repeating alternately of energization process and stress-relief process, thereby excite interior gas column of annular space and fluid column to produce the pressure oscillation or the water hammer of alternately commutation, interval is stopped up in the near wellbore zone apply the processing effect of fluctuating, reach and remove the purpose that near wellbore formation stops up increases the oil-water well production capacity.Can realize de-plugging operation because this technology can remove tubing string,, reduce pollution, have better environmental-protecting performance ground, well site so can save cost of production significantly to oil-water well.

Claims

1, a kind of pressure pulse de-plugging controller, by top connection, housing, in logical spheroid, ball seal circle, rotating shaft, rotating shaft sealing cover, handle and lower contact form, it is characterized in that being arranged with two ring sealing bases at the sphere of arc up and down of housing and the junction of spheroid through hole, be inlaid with outer in the seal receptacle for being the spherical sealing ring of arc in the right angle, with the spheroid next top of rotating shaft concentric, be provided with locating shaft, locating shaft is inserted in the corresponding shell shrinkage pool, and spheroid is outstanding to be attached to up and down on the two seals circle.