SU61871A1 - Deep pump - Google Patents

Description

A deep hydraulic pump is offered. drive driven piston engine with a spool distribution.

To isolate the pump and engine in the well from the current of the flushing fluid, when flushing the pipes in the discharge pipe and in the connecting pipe of the nozzle, check valves are installed, and a spring-loaded shut-off member controlled by the fluid flow is mounted in the supply flow medium.

FIG. 1 shows a longitudinal section of the pump; in fig. 2 - install the pump in the well; in fig. 3 - installation diagram of check valves and valve body.

A deep pump is a double-acting piston pump (double-acting engine (FNG)) consisting of cylinder / channels for the pumped liquid and working agent, piston 2 with rings and: itox: 3, one piston 2 is mounted on one end other plunger /. At the bottom, a stepped rod 5 is attached to 1-thread 3 and b .1 is attached to a balancing plunger 6.

In order to reverse the engine, the pumping service is zolotniKoni .iii mechanism consisting of a housing with two cylindrical spools 7 and S.

The kosos and the engine are lowered into the well nln into the well on three parallel pipes 9, JO and // or on two pipes, spaced concentric, depending on the intended way of working. When the engine is operating on: a liquid working agent, it is necessary to have three pipes running from the ground to the pump. Of these, one pipe serves to supply the working agent to the engine of a deep iasos, the other to remove the spent working agent n third to lift the pumped liquid. The working agent makes a closed circular motion without mixing with the pumped liquid, which makes it possible to apply water, oil and oil, thoroughly cleaned only once, as a working agent.

When the engine is operating on a gas working agent, two cases may occur.

First, when the spent working agent is discharged into the lifting column, through which the pumped liquid rises, number 61871

its aeration proceeds. In this case, the specific gravity decreases, hence, the 1-hydrostatic pressure of the mixture, which makes it possible to reduce the working pressure of the gas and reduce the total weight of the liquid, and the flow in the pipes.

The reduction in pressure, even at well depths of up to 2,500–3,500 m, allows the use of compressors adopted in the oil field of Tina. In this case, the pump can be lowered onto two end-of-line pipes and use natural gas, air or, as an operating agent, gas produced under pressure from neighboring boreholes, as is sometimes the case with gas lift operation.

Secondly, when the slave agent is a water vapor that does not need to be pushed to the surface, the pipe that pulls the working agent from the engine of the deep pump is lifted above the pump slightly above level AB (Fig. 2). The other two pipes have a daily basis. Steam, the exit from the pipe into the annular space, should condense, after which it can be lifted in the form of condensate together with the pumped liquid and the daily and surface.

Before starting the pump into operation, it is necessary to clean the pipes of dirt accumulated in them. So that it is not nonal in the engine, the pump when flushing or retrofitting pipes, pipes 9, 10 n // (fig. 3) connect between co6oJ pipes 12, 13, 14 and 15, in which the 16, 17 n valves are spring loaded valve body 18: in the pipes .9 and 10, valves 19 and 20 are missing.

To rinse the pump, it is pumped like a usual deep and from the surface of the surface it starts to get coarse .9 and a clean liquid (water, oil, etc.). Passing to the pipes, this liquid is: -:.; It flows behind itself in the gr:: g, through valves 16 n / 7 into the pipe //, through which it is lowered to the surface. The access of the contaminated liquid to the engine and the pump is blocked by valves 19 and 20 m of the shut-off organ 18. Afterbirth during nromyvkn is in the extreme disposition (along the drawing) of the Nozhozhenin, since due to the injection of the flushing fluid B of the pipe 9 and 10, the pressure on the shut-off organ from the left side of the bolp e than on the right side, n, besides, on the left side it is affected by esh, e spring.

After the process, the proliferators start to pump but the pipe // working agent, Proyets on pipelines / 5, the worker agregg will move the body 18 to the left, close the pipe 1-1 and open the pipe 11 for passage into the engine.

Nozzles 12 and 13 in this case will be closed by clans 16 and 17. since the pressure in the pipe // is always higher than in pipes 9 and 10. Valves 9 and 20 will not impede the passage of fluid, because moving) during normal operation of the pump, it is directed to the side, like the neurovioid, to the direction indicated by the arrows P.

Subject invention

A deep hydraulic pump, dried by means of a piston engine with a golden distribution, characterized in that, in order to isolate the pump and engine in the well from the current and the flushing fluid, flush the pipes in the discharge pipe and in the joint 1, On the pipe there are non-return valves installed, and in the feeder the working medium of the pipe is equipped with a spring-loaded shut-off element, controlled by the 1st current liquid.

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