CN201606049U - Watering oil pumping tube string of thick oil well - Google Patents

Abstract

The utility model relates to a watering oil pumping tube string of a thick oil well, which consists of a sleeve, an oil tube, an oil well pump, a leveling pipe, a packer, a check valve, and a thick oil layer, wherein the oil tube, the oil well pump, the leveling pipe, the packer and check valve are connected with one another in sequence and positioned in the sleeve, a roller of the packer is contacted and sealed with the sleeve, the packer is an Y221 type packer, and the thick oil layer is communicated with the sleeve. The thick oil of the thick oil layer flows through the check valve and is extracted by the oil well pump, well-cleaning water is injected from the sleeve and flows downwards to the upper part of the packer, and under the action of the packer and the check valve, enters the leveling pipe to be mixed with the thick oil flowing from the thick oil layer so as to dilute the thick oil, so that the thick oil can be extracted smoothly. The thick oil layer can not be polluted by hot water, and the watering oil pumping tube string can protect the oil layer with less hot water consumption, thus having remarkable economic benefit.

Description

Heavy oil wells water mixing pumping pipe string

Technical field

The device of the utility model oil-field thick-oil well oil recovery usefulness is a kind of heavy oil wells water mixing pumping pipe string.

Background technology

Oil is very thick in the oil reservoir of oil field pumping well, does not take to produce difficulty of heavy oil tested layer separately as the viscosity reduction measure of thermal recovery and so on, and takes the viscosity reduction measure cost height as thermal recovery and so on, and the exploitation benefit is low.Can open for the well that guarantees viscous crude and to take out production, often adopt the measure of hot water well-flushing, it is thinning that viscous crude is heated, but oil well pressure is low sometimes, and the hot water of the injection stratum of bleeding causes oil reservoir impaired, also can increase hot water consumption, deficiency in economic performance.

Summary of the invention

The purpose of this utility model is a kind of heavy oil wells water mixing pumping pipe string of design, makes its well-flushing water can not enter the stratum, prevents oil layer pollution, reduces the hot water consumption.

The purpose of this utility model is achieved in that by sleeve pipe, oil pipe, oil well pump, cross over pipe, packer, ball-and-seat, heavy oil tested layer to be formed, oil pipe, oil well pump, cross over pipe, packer, ball-and-seat connect successively, oil pipe, oil well pump, cross over pipe, packer, ball-and-seat are in the sleeve pipe, the packing element of packer and sleeve pipe contact seal, packer is a Y221 type packer, and heavy oil tested layer communicates with sleeve pipe.

The beneficial effects of the utility model are: packer separates oil reservoir; make the viscous crude that flow on the ball-and-seat obtain dilution; help thickened oil recovery; the oil well oil pump capacity is many; the hot water that mixes does not contact with fluid under the packer, and heavy oil tested layer can not be subjected to thermal water pollutilon, can protect oil reservoir; the hot water consumption is few, has remarkable economic efficiency.

Description of drawings

Accompanying drawing is the schematic diagram of the utility model embodiment.

The specific embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described.

Embodiment of the present utility model is made up of sleeve pipe 1, oil pipe 2,oil well pump 3, cross over pipe 4, packer 5, ball-and-seat 6, heavy oil tested layer 7, oil pipe 2,oil well pump 3, cross over pipe 4, packer 5, ball-and-seat 6 connect successively, oil pipe 2,oil well pump 3, cross over pipe 4, packer 5, ball-and-seat 6 are in the sleeve pipe, the packing element of packer 5 and sleeve pipe 1 contact seal, packer 5 is a Y221 type packer, and heavy oil tested layer 7 communicates with sleeve pipe 1.

The viscous crude of heavy oil tested layer 7 through ball-and-seat 6 by the oil well pump extraction, well-flushing water injects from sleeve pipe 1 and flow to packer 5 tops downwards, under the effect of packer 5 and ball-and-seat 6, well-flushing water enters the viscous crude that flows out with heavy oil tested layer 7 through cross over pipe 4 and mixes that viscous crude is heated is thinning, thus extraction smoothly.

Claims (1)

1. heavy oil wells water mixing pumping pipe string, form by sleeve pipe (1), oil pipe (2), oil well pump (3), cross over pipe (4), packer (5), ball-and-seat (6), heavy oil tested layer (7), it is characterized in that: oil pipe (2), oil well pump (3), cross over pipe (4), packer (5), ball-and-seat (6) connect successively, oil pipe (2), oil well pump (3), cross over pipe (4), packer (5), ball-and-seat (6) are in the sleeve pipe, the packing element of packer (5) and sleeve pipe (1) contact seal, packer (5) is a Y221 type packer, and heavy oil tested layer (7) communicates with sleeve pipe (1).

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