SU1507956A1 - Arrangement for operating flooded well - Google Patents

Abstract

The invention relates to oil production, in particular, to devices for the operation of watering wells. The aim of the invention is to increase the efficiency of operation of the device by increasing the productivity and more efficient separation of oil and water. The device includes a casing 1, a lift column 2 with holes 3 and 4 on two levels, an underground separator placed between the casing and lift columns, a distribution device on the lift column comprising two locking elements 5 and 6 for alternately blocking the holes of the respective levels, installed with the possibility of moving along the lift column and rigidly connected by the thrust 7, the drive of the locking elements in the form of a float 8, having a positive buoyancy in water 12 and negative in oil 11, has been established with the possibility of free movement between the locking elements and alternately interacting with them, limiters 9 and 10. When operating the device, the locking elements, moving through the lift column, alternately close and open the holes of the corresponding levels, through which oil is taken from the underground separator and water. The movement of the locking elements occurs as a result of the interaction of one of them with the float moving together with the oil-water interface when the float approaches the openings of the upper or lower level. 1 hp f-ly, 1 ill.

Description

The invention relates to oil production, in particular, to devices for the operation of watering wells.

The purpose of the invention is to increase the efficiency of operation of the device by increasing productivity and by more efficient separation of water and oil in the tubing.

The drawing shows a device for operating a watering well, a general view.

The device includes an underground separator located between casing 1 and the tubing column 2, which has upper level openings 3 and lower level openings 4, locking elements 5 and 6 rigidly connected by thrust 7, float 8 having positive buoyancy in water oil, installed with the possibility of free movement between the locking elements and alternate interaction with the locking elements, limiters 9 and 10 of the movement of the locking elements. Position 11 indicates oil, 12 - water, 13 - the oil-water interface.

The device works as follows.

The liquid entering the well of the reservoir is separated in the underground separator for oil 11 and water 12, while the float 8 is located at the oil-water interface 13. The openings of one of the levels, for example, the upper one, are blocked by a locking element, therefore only one phase enters the lift column (in this case, water, through the open holes 4 of the lower level). In the process of water extraction from the underground separator, the boundary 13 of the section will move down and with it the float 8. When the oil-water interface approaches the lower level openings 4, the float 8 comes into contact with the locking element b and shifts it down to contact with limiter 10. In this case, the lower locking element 6 closes the holes 4 of the lower level, and the upper locking element 5, due to the presence of a rigid connection between the locking elements, opens the holes 3 of the upper level. From this point on, the flow of water into the tubular column stops and the flow of oil begins. AT

the selection process from the underground oil separator, the border of section 13 will move upwards, and with it the float 8. When the interface of section 13 approaches the openings of the upper

In a row, the float 8 comes into contact with the upper locking element 5 and shifts it up to contact with the stopper 9. In this case, the upper locking element 5 closes the openings 3 of the upper level, and the lower locking element, due to the presence of a rigid connection between the locking elements, opens the holes 4 lower level From this point on, the flow of oil into the tubular column stops and the flow of water begins. Then the cycle repeats,

water and oil come to the surface in separate portions. The use of the invention will reduce the costs associated with the destruction of the water-oil emulsion formed during the operation of the well and the corrosion of transport pipelines.

waters.

Claims (2)

1. A device for operating a bypass well, comprising a casing, an elevator with holes, and an underground separator located between the casing and elevator columns, in order to increase the efficiency of operation of the device by increasing productivity and for due to more efficient separation of water and oil, the holes in the tubing are made on two levels; the drive of the locking elements in the form of a float, i.e., its positive buoyancy in water and negative in oil, installed with the possibility of free movement between the locking elements s and alternately interacting with locking elements. 2. An apparatus according to claim 1, characterized in that the movement limiters of the locking elements are mounted on the tubing.