SU601454A1 - Deep-well pumping unit - Google Patents

Description

The invention relates to a pumping installation. lifting liquids from the well.

A well-known structure is an asosno installation with a hydraulic rod filled with two working fluids separated from each other by a float-type divider. The unit is equipped with a leveling system and a power pump located on the surface. The control system includes a distribution spool device 1.

The disadvantage of the installation is that it has leakage of working fluid from the hydraulic rod to the well: well below the separator, which increase software (As the working pair is worn, the plunger is the plunger of the submersible pump. Replacing these leaks is possible only when the installation itself stops, that onizhaeg its superior production.

The purpose of the invention. is an increase in the capacity of the plant by automatically compensating for leakage of the working fluid below the separator.

This gap is achieved by the fact that the control system is equipped with a make-up tank and a make-up pump, in which case two chambers are made. In each chamber there is a container of elastic material. A. One of the chambers communicated through the return clutch with the make-up tank, and the tank located in it communicated with the hydraulic strap above the separator. The container, located in another kamere, communicated through check valves with the first chamber and with the hydraulic rod below the separator.

FIG. 1 schematically shows a submersible pump; on fig. 2 - pumping pump.

The installation contains a submersible pump / installed on a paxra 2 from well 3. The pump / is connected by a hydraulic rod 4 having a float; a separator 5 and filled with two working fluids - deaerated water below the separator and mineral oil m above it - with the system y: raleva;) and 5, and through it - with power: iacocoM 7, located on the surface.

The control system 6 is equipped with a submachine pump 8 and a bottom-mounted tank 9. In the cylindrical case of the pump there are two chambers 7 (and //, in each of which there is a tank with an elastic material, respectively 12 and / Camera Yu through non-return valve 14 is connected to the tank I filled with the working fluid. Capacity 12 - with 1 hydraulic valve 4 and above the separator 5. Capacity 13 through the non-return valves / 5. and 16 communicates with chamber 10 and gI | Droshtanga 4 below, section 5, respectively.

The installation works as follows. With the start of the pump 7, the pressure of the working fluid through the control system 6, which in

The initial position passes the working fluid to gi, g | roshtan, ge 4, acts on the pump /. The pistons in the initial position are at the top under the action (hydraulic unbalancer, 0 brace in the hydraulic drive of the installation, when the hydraulic rod 4 and the annulus "ad. 5, are filled with liquid. when the pump pistons / stop, the system control system 6 disconnects 7 from the hydraulic rod 4 and connects it to the atmosphere. At this time, the pump pistons / iodine will be returned to the upper position, made a cycle .v - suction. Then the cycles will be repeated.

During the operation of the installation, through the precision working cells of the pump cylinder and pump plunger / and other compounds, the working fluid. Below the float separator 5 will partially flow away into the well 3. Automatic compensation of the leakage of the working fluid with the help of injection pump 8 is performed as follows in a way.

When lowering the level of the p-working fluid below section 5 during the injection cycle, when there is r | in hydraulic 1st bar 4; when it is pumped out by pump 7, capacity 12 expands and forces out of chamber 10 through O | n 15 filling it with working liquid in a container / 5. During this period ka: Mer. And W by the check valve 14 is disconnected from the tank 9, and capacity 13 by the check valve 16 is from the separator 5.

During the suction cycle, when the hydraulic rod 4 and the separator 5 are disconnected by the control system 6 from the pump 7, the tank 12 will restore its original position (reduced) under the action of its own elastic forces, and the iB chamber 10 through the non-return valve M with the valve 15 closed. Tank 9 will receive a portion of the working fluid. From the tank 13 under the action of its elastic forces through the check valve 16, if the valve is closed / 5, the working fluid will be forced out into the hydraulic rod

4 - below the separator 5 and - to replenish the leakage of the working fluid without stopping the operation of the pumping station.

Thus, an increase in the performance of the USE is ensured by

and off-stops the pumping unit to compensate for leakage of the working fluid.

Formula and 3 about b and e and

A deep-well installation comprising a deep-flow I pump with a hydraulic rod filled with two working fluids separated from each other by a float separator, a control system and an i-pump that are located on the surface, characterized in that the system control is equipped with a make-up tank and

Make-up HacocoiM, In Coriuss of the latter, two chambers are made, in each of which there is a container of elastic material, one of the chambers communicates through the return; valve with the supply tank, and the tank located in this chamber is communicated with the city center section, capacity, located in another chamber, communicated via check valves with the first chamber and with the hydro rod; below the separator.

The source of information taken into account by Gary Zop-ertize:

-one. Roste 3. A. et al. The results of preliminary tests of a BGN-F rodless hydraulic piston pump controlled from

on the surface. “The Oil Industry, 1964,

 , 1, C. 1-3-16.