CN2128668Y

CN2128668Y - Diverter

Info

Publication number: CN2128668Y
Application number: CN 92216312
Authority: CN
Inventors: 李福山; 张桐义; 王国丙; 徐汉军; 曹焕光; 韩雨生; 陈广顺
Original assignee: Liaohe Petroleum Exploration Bureau Ciyutuo Oil Extraction Factory
Current assignee: Liaohe Petroleum Exploration Bureau Ciyutuo Oil Extraction Factory
Priority date: 1992-06-26
Filing date: 1992-06-26
Publication date: 1993-03-24
Anticipated expiration: 2002-06-26

Abstract

The utility model discloses a diverter which belongs to an auxiliary device of an oil pumping well. The utility model has the technical proposal that the upper part of the interior of a main body is provided with a valve seat and a well washing valve. The upper part of the well washing valve and the main body form a cavity. The lower part of a valve body is connected with a bottom valve of which the interior is provided with a magnet core overflowing device and the seat of the bottom valve. A valve ball is arranged between the magnet core overflowing device and the seat of the bottom valve. The lower part of the main body is provided with a control ring. A spring is arranged between the well washing valve and the control ring. The utility model is matched with an underground packer to improve the production state of an oil well so that the bottom oil of a low-voltage and low-producing oil well is especially favorably aggregated and extracted. The output of production is enhanced, and the situation of the well flushing of a pumping well is improved. An oil layer is prevented from being polluted by well flushing fluid, and the efficiency of flushing the well is enhanced. The period of flushing the well is extended.

Description

Diverter

The utility model belongs to a kind of servicing unit of pumpingh well, and particularly a kind of can the raising pumped operating efficiency and avoid the flushing fluid current divider that generation is polluted to oil reservoir in the well-flushing.

In the pumpingh well manufacturing process of routine, annular space between oil, the sleeve pipe opens wide, and the liquids and gases that exist in it can disturb the operate as normal of oil well pump, the operating efficiency of influence oil pumping, in washing well process, flushing fluid can produce back pressure and polluted reservoir to oil reservoir simultaneously.

The purpose of this utility model provides a kind of current divider, it and the supporting use of downhole packer, can improve the production status of oil well, help the gathering and the extraction of shaft bottom crude oil, improve the oil pumping operating efficiency, increase oil well output, improve the well-flushing situation of pumpingh well simultaneously, prevent the flushing fluid polluted reservoir, improve well-flushing efficient.

The purpose of this utility model is achieved in that the main body internal upper part that is connected with upper and lower joint is equipped with valve seat and flushing valve, and flushing valve top and main body constitute ring cavity, and this chamber communicates with well washing hole on the main body; Valve body lower portion connects bottom valve, and assembling magnetic core overflowing device and valve seat are equipped with valve ball between the two in the bottom valve body; The bottom is equipped with and is reconciled ring in the main body, and flushing valve is equipped with spring with the conciliation interannular.

Operating principle: in the pumpingh well normal productive process, flushing valve withstands on the valve seat under the effect of spring, flushing valve is in closed condition, the valve ball of bottom valve breaks away from foot valve seat and moves up under the effect of well intracavity liquid pressure, by the absorption of the magnetic core overflowing device of top, bottom valve is in normally open when the oil well ordinary production.When oil well needs well-flushing, flushing fluid enters in the well from the annular space between oil, the sleeve pipe, because there is the existence of packer the pumpingh well bottom, the pressure of flushing fluid acts on flushing valve, and the pressure of its elastic force that overcomes spring and well intracavity liquid is moved downward, flushing valve is opened, flushing fluid just enters in the utility model, and the valve ball of bottom valve overcomes magnetic core gravitation under flushing fluid pressure, drops on the bottom valve valve seat, bottom valve cuts out, and flushing fluid just upwards returns out through the oil pipe of oil pump.Well-flushing is finished, and flushing valve is closed, and bottom valve is opened, and pumpingh well returns to normal production.The tight power of giving of spring is reconciled according to the degree of depth in the current divider servant oil well and the fluid pressure of pit shaft, to realize the optimum state of well-flushing.

The utility model has the advantages that: with the supporting use of downhole packer, can improve the production status of oil well, especially help former oil accumulation in low-voltage and low-yield oil well shaft bottom and extraction, improve the oil pumping operating efficiency, increase oil well output, improve the well-flushing situation of pumpingh well simultaneously, prevent the flushing fluid polluted reservoir, improve well-flushing efficient, prolonged time between well-flushings.

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

Fig. 1 is the utility model structural representation.

See Fig. 1, the utility model concrete structure is as follows: well washing hole 2 is arranged at main body 8 tops that are connected with top connection 4 and lower contact 19, valve seat 6 is equipped with in main body 8 inside, pressure ring 5 is arranged at valve seat 6 tops, main body 8 inwalls are equipped with spacer 7 and lining 11, flushing valve 9 tops and main body 8 looping cavitys 3, and this chamber communicates with well washing hole 2, flushing valve 9 bottoms and lining 11 are slidingly matched, and sealing ring 1 is housed; The bottom of flushing valve 9 and the valve body of bottom valve 10 thread connection, dress valve ball 13 between affixed magnetic core overflowing device 12 and foot valve seat 14, two parts in the valve body 10 of bottom valve, the lower end thread connection foot valve seat joint 15 of valve body 10; The lower thread of main body 8 connects reconciles ring 18, and packing ring 17 is housed on it, and spring 16 is loaded between flushing valve 9 lower ends and the packing ring 17.

Claims

1, a kind of current divider is characterized in that: the main body internal upper part that is connected with upper and lower joint is equipped with valve seat and flushing valve, and flushing valve top and main body constitute ring cavity, and this chamber communicates with well washing hole on the main body; Valve body lower portion connects bottom valve, and assembling magnetic core overflowing device and valve seat are equipped with valve ball between the two in the bottom valve body; The bottom is equipped with and is reconciled ring in the main body, and flushing valve is equipped with spring with the conciliation interannular.

2, current divider according to claim 1 is characterized in that: between valve seat and main body pressure ring is housed.

3, current divider according to claim 1 is characterized in that: in the ring cavity that flushing valve top and main body constitute neck bush is housed.

4, current divider according to claim 1 is characterized in that: sealing ring is equipped with in the flushing valve bottom.