CN2417302Y

CN2417302Y - Oil pump able to pump oil together with mud

Info

Publication number: CN2417302Y
Application number: CN 00211824
Authority: CN
Inventors: 李昌绵; 张辉; 谢伟明; 张义祥
Original assignee: SHUGUANG ENGINEERING TECHNOLOGY DEPARTMENT LIAOHE PETROLEUM EXPLORATION BUREAU
Current assignee: SHUGUANG ENGINEERING TECHNOLOGY DEPARTMENT LIAOHE PETROLEUM EXPLORATION BUREAU
Priority date: 2000-05-10
Filing date: 2000-05-10
Publication date: 2001-01-31
Anticipated expiration: 2010-05-10

Abstract

The utility model relates to an oil pump able to pump oil together with mud, which is used for an oil well, particularly an oil well generating mud and sand. The utility model is composed of an upper traveling valve 1, a lower traveling valve 5, a pump barrel 2, a plunger 3, an oil pipe short section 4, a fixing valve cover 6 and a fixing valve 7. The oil pump is characterized in that the oil pump is provided with the long plunger and the short pump barrel, and the low portion of the pump barrel is connected with the oil pipe short joint. A unique anti-sand slot is arranged on the long plunger. The oil pump which is utilized can effectively prevent mud and sand from interfering and destroying the work process of the oil pump, avoid or lightens the bad consequence caused by the interference and the destruction of the mud and sand for the work process of the oil pump, and improve the mining effect of an oil well generating mud and sand. The pump also has the advantages of high pump efficiency, large displacement, etc.

Description

A kind of oil well pump of portability silt particle

The utility model relates to a kind of particularly down-hole oil rig of mud extraction sand well production of oil well that is used for.

Be subjected to the influence of reservoir geology structure, the higher mud extraction sand well of silt content in some output liquid of each oil field ubiquity.At present, owing to lack the special-purpose oil well pump that is used for this kind oil well, in these oil wells, still use conventional oil well pump usually, thereby phenomenons such as silt particle holddown, sand milling often appear in process of production, cause adverse consequencess such as pump efficiency is lower, operation is frequent, life of equipment is short, oil well ordinary production and economic benefit are caused have a strong impact on.

The purpose of this utility model is to provide a kind of oil well pump that is applicable to the production of mud extraction sand well and pump efficiency height, portability silt particle that discharge capacity is big.

The utility model is to realize like this.This kind oil well pump is made up of pump barrel, plunger, tubing nipple, the upper and lower valve and standing valve and valve cover of moving about, its structure characteristic is, this oil well pump adopts long-plunger, short pump barrel, and under pump barrel, connect a tubing nipple, the standing valve part then is connected on the tubing nipple below, that is the pump barrel lower end is by the tubing nipple that is threaded, and the tubing nipple lower end is by the standing valve cover that is threaded; Be provided with long-plunger in pump barrel and the tubing nipple, be respectively equipped with the upper and lower valve that moves about on the valve seat of plunger upper and lower end, the valve seat in the standing valve cover is provided with standing valve.During work, because the tubing nipple internal diameter that this oil well pump adopts is greater than the pump barrel internal diameter, thereby in the oily process of turnover, all can wash away the silt particle that is positioned on the tubing nipple long-plunger, long-plunger is provided with unique anti-sand launder helps all blowing off the pump barrel two ends when upper and lower stroke silt particle, prevents the silt particle holddown effectively.In addition, the high travelling valve of this oil well pump exposes all the time on pump barrel, and fuel-displaced resistance is reduced greatly; The oil outlet of used standing valve cover becomes 10 ° of angle outer inclines with center line, can make oily stream rush at tubing nipple silt particle on it is taken away; Used standing valve part is big than conventional pumps, can make filling index, pump efficiency and the discharge capacity of pump higher.

The utility model modern design, rational in infrastructure, utilize it can effectively prevent interference and the destruction of silt particle to the oil well pump working procedure, avoid or alleviate consequent adverse consequences, improve the exploitation effect of mud extraction sand well.This kind oil well pump also has advantages such as pump efficiency height, discharge capacity be big, is suitable for and applies.

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

Below in conjunction with accompanying drawing enforcement of the present utility model is illustrated.

As shown in the figure, the utility model is made up of upper and lower valve 1,5, pump barrel 2, plunger 3, tubing nipple 4, standing valve cover 6 and the standing valve 7 of moving about.Wherein, pump barrel 2 is the short pump barrel of long 2m.Plunger 3 is the above long-plunger of long 5m, its upper/lower terminal is respectively equipped with the anti-sand launder in 3 roads, the bottom of the anti-sand launder in 3 roads, upper end and plunger body surface angle at 45 is interior down recessed, inwardly recessed on the angle at 45 of the top of the anti-sand launder in 3 roads, lower end and plunger body surface, 45 ° of wedge points of upper and lower anti-sand launder blow the silt particle that enters the pump barrel upper and lower end respectively off when upper and lower stroke.Tubing nipple 4 is the 2 " oil pipes of long 3.8m." oil tubing coupling internal thread matches standing valve cover 6 peripheries upper end screw thread and 2, and the oil outlet of overhead guard becomes 10 ° of angle outer inclines with center line.

Claims

1, a kind of oil well pump of portability silt particle, form by the upper and lower valve that moves about (1), (5), pump barrel (2), plunger (3), standing valve cover (6) and standing valve (7), it is characterized in that: pump barrel (2) lower end is by the tubing nipple (4) that has been threaded, and tubing nipple (4) lower end is by the standing valve cover (6) that is threaded; Be provided with long-plunger (3) in pump barrel (2) and the tubing nipple (4), be respectively equipped with the upper and lower valve that moves about (1), (5) on the valve seat of plunger (3) upper and lower end, the valve seat in the standing valve cover (6) is provided with standing valve (7).

2, the oil well pump of portability silt particle according to claim 1, it is characterized in that, plunger (3) is the long-plunger of length more than 5m, its upper and lower end is respectively equipped with the anti-sand launder in 3 roads, inwardly recessed under the angle at 45 of the bottom of the anti-sand launder in 3 roads, upper end and plunger body surface, inwardly recessed on the angle at 45 of the top of the anti-sand launder in 3 roads, lower end and plunger body surface.