SU1588924A1 - Downhole pumping unit - Google Patents

Abstract

The invention relates to jet technology, mainly to jet pumping units for lifting oil from wells. The purpose of the invention is to expand the functionality due to the pumping of the kill fluid during the well completion period. The well pump installation contains a column (CST) of 1 tubing and a jet pump (CH) 2 installed on it with a receiving chamber (PC) 3 and a centrifugal pump (CN) 7 with a discharge pipe (NP) 8 connected to the active nozzle 4 CH 2. The installation is equipped with a bypass pipe (PP) 9 and a movable sleeve (PV) 10 with a valve device (CU) 11. PP 9 is connected to NP 8 and CST 1, and PV 10 is installed in the connection zone of CP 9 to CST 1 with shut off PP 9 in its lower position, while PV 10 is equipped with a latch 12. PC 3 is equipped with a check valve (OK) 13. CH 2 can be installed with the possibility of axial movement in CST 1. At the same time, the SP 10 is fixed on CH 2 and the latch 12 is made on CH 2. During the well completion period, the killing fluid pumped out by the C 7 comes to CST 1 CH 2 and PP 9. Drainage of fluid into the well prevents OK 13. After pumping the kill of the PV 10 from the well, the hydraulic signal from the surface is transferred to the lower position, in which the PV 10 closes the PP 9 and is fixed by the latch 12. Oil is pumped out in CST 1 via CH 2, which additionally pumps the nave From the well through PC 3. In the case of performing CH 2 movable during the period of well completion, CH 2 is in the upper position and PN 9 is open for pumping well kill fluid through it. After the development of the well TSN 7 and CH 2, as described, oil is pumped out of the well. At the same time, CH 2 is in the lower position and fixed by the latch 12. Thus, by supplying the PP 9 and PV 10 with the KU 11 installation, it is possible to expand the functional capabilities — ensuring pumping oil and well fluid out of the well. 2 hp ff, 4 ill.

Description

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no-compressor pipes and a jet pump (CH) 2 installed on it with a receiving chamber (PC) 3 and a centrifugal pump (CN) 7 with an injection pipe (NP) 8 connected to the active nozzle 4 CH 2. The unit is equipped with an overflow pipe (PP ) 9 and a movable sleeve (PV) 10 with a riveted device (CU) 11, PP 9 is connected to NP 8 and KIT 1, and PV 0 is installed in the connection zone of PP 9 to CST I with the ability to overlap PP 9 in its lower position, with This PV 10 is equipped with a latch 12. PC 3 is equipped with a reverse clan number (OK) 13. CH 2 can be installed with the possibility of axial moving "

The fluids of the grounding PV 10 are hydraulically transferred from the surface to the lower position, in which the PV 10 overlaps the PP 9 and is fixed by the latch 12

 Oil is pumped out by ZN 7 and sent to CST 1 through CH 2, which additionally pumps oil out of the well through PC 3 In the case of performing CH 2 mobile during the period of completion of the well CH 2 is in the upper position and PP 9 is open for

10 pumping a well killing fluid through it. After the development of the well TSN 7 and CH 2, as described, oil is pumped out of the well. While CH 2 is in the lower position and fixed by the latch 12.

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KHl 1. At the same time, the PV iO is fixed to CH 2. Thus, by supplying the installation

and the latch 12 is made on CH 2. During the well completion period, the killing fluid pumped out by the TsN 7 enters the iKHT 1 through CH 2 and PP 9. Drainage of the liquid into the well prevents OK 13. After pumping out

PP 9 and PV 10 with KU 11 are achieved by expanding the functionality - ensuring pumping oil and well killing from the well. 2 h. the item of f-ly, 4 ill.

The hydraulic fluids of the DF-10 are hydraulically transferred from the surface to the lower position, in which the DF-10 closes the A / C 9 and is fixed by the latch 12.

Oil is pumped out by ZN 7 and sent to CST 1 through CH 2, which additionally pumps oil from the well through PC 3. In the case of performing CH 2 mobile during the period of completion of the well CH 2 is in the upper position and PP 9 is open for

pumping through it liquid killing well. After the development of the well TSN 7 and CH 2, as described, oil is pumped out of the well. While CH 2 is in the lower position and fixed by the latch 12.

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Thus, by supplying the installation

Thus, by supplying the installation

PP 9 and PV 10 with KU 11 are achieved by expanding the functionality - ensuring pumping oil and well killing from the well. 2 h. the item of f-ly, 4 ill.

The invention relates to the field of jet technology, mainly to jet pumping units for lifting oil from wells.

The invention of the invention is an extension of the functional capabilities due to the pumping of the kill fluid during the period of the well completion.

FIG. 1 shows a schematic representation of the installation in the pumped-off mode; 1; in fig. 2 - installation in the oil pumping mode; in fig. 3 shows an embodiment of the installation with a mobile jet pump in the pumping mode of the glistening liquid; in fig. 4 shows an embodiment according to FIG. 3 in the mode of pumping oil.

The well pump installation comprises a column 1 of tubing and mounted on it a jet pump 2 with a receiving chamber 3, an active nozzle 4, a mixing chamber 5 and a diffuser 6 and a centrifugal pump 7 with a discharge pipe 8 connected to the active 4 jet pump 2.

The installation is equipped with an overflow pipe 9 and a movable SLEEVE 10 with a valve device 1 1, the bypass pipe 9 is connected to the discharge pipe 8 of the centrifugal pump 7 and to the pipe string 1, and the mobile sleeve 10 is installed in the zone of connecting the pipe 9 to the column I of pipes with the possibility of blocking 9 in the lower position, the sleeve 10 is provided with a latch 12 for fixing it in the lower position. The suction box 3 of the jet pump 2 is equipped with a check valve 13.

The jet pump 2 can be mounted for axial movement in the tubing string 1. The movable sleeve 10 is fixed at the outlet of the diffuser b jet

0 of the pump 2, and the latch 12 is made on the jet pump 2 from the side of the active nozzle 4. When the well is developed, the moistening fluid pumped out by the centrifugal pump 7 enters the column 1 of the pump-compressor pipes, passing through the jet pump 2

5 and in parallel through the overflow pipe 9, which compensates for the hydraulic resistance created by the jet pump 2. Drainage liquid draining through the receiving chamber 3 of the jet pump 2 prevents Q with a check valve 13.

After completion of the well, the movable sleeve 10, equipped (with a stationary or discharged) valve device 11, is transferred from the surface with a hydraulic signal to the lowest position, in which it closes the bypass connection 9 and is fixed by latches 12. During operation of the well, the formation fluid pumped by the centrifugal pump 7, is pumped through the jet pump 2, the latter ejecting oil from the well is alive through the receiving chamber 3 and directing it to the tubing 1.

When the jet pump 2 is made movable during well completion, the jet pump 2 is in its extreme upper position, and the bypass 9 is open for pumping through it the moistening fluid.

During the drilling of the well, the jet pump 2 is moved to the lowest fixed position, the sleeve 10 blocks the bypass pipe 9. Next, as described, the centrifugal pump 7 and the jet pump 2 pump the oil out of the well.

Thus, by introducing an overflow pipe and a movable sleeve with a valve device into the installation, an expansion of functional capabilities is achieved - ensuring that both oil and well plugging fluid are pumped out of the well.

Claims (3)

Invention Formula . A well pumping installation containing a tubing string and mounted on it a jet pump with a receiving chamber, an active nozzle, a mixing chamber and a diffuser, and a centrifugal pump with an Injection nozzle connected to the jet nozzle of the jet pump, expansion of functionality due to the pumping of liquid from the loudspeakers during the well completion period, the installation is equipped with an overflow pipe and a movable sleeve with a valve device, the bypass pipe is connected to the centrifugal pump discharge pipe and to the pipe string, and the movable sleeve is installed in the connection zone of the pipe to the column rub with the possibility of blocking the nozzle in its lower position, while the sleeve is provided with a latch for fixing it in the lower position. 2. The installation according to claim 1, wherein the receiving chamber of the jet pump is provided with a check valve. 3. Installation on PP. 1 and 2, characterized in that. that the jet pump is mounted with the possibility of axial movement in the pipe string, and the low-pass bushing is fixed at the outlet of the jet pump diffuser. / - four g / i  II