CN215939601U

CN215939601U - Pressure-reducing injection-increasing surfactant dosing and dispersing device

Info

Publication number: CN215939601U
Application number: CN202122350709.2U
Authority: CN
Inventors: 张泽春; 刘明哲; 李伟; 何立兰
Original assignee: Shandong Haisheng Ocean Engineering Group Co ltd; Shengli Oilfield Haifa Environmental Protection Chemical Co ltd
Current assignee: Shandong Haisheng Ocean Engineering Group Co ltd; Shengli Oilfield Haifa Environmental Protection Chemical Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-03-04
Anticipated expiration: 2031-09-27

Abstract

The utility model relates to a pressure-reducing injection-increasing surfactant dosing and dispersing device which comprises a liquid storage tank, wherein a liquid inlet pipe is arranged at the top of the liquid storage tank, a liquid outlet pipe is arranged at the bottom of the liquid storage tank, a filter is connected with the liquid outlet pipe, a diaphragm pump is connected to the lower end of the filter, a conveying pipe is connected to the outlet of the diaphragm pump, a flowmeter, a one-way valve and a pressure gauge are arranged on the conveying pipe, a return pipe is arranged on the conveying pipe between the flowmeter and the diaphragm pump, a rotating shaft is rotatably arranged in the liquid storage tank, a hollow disc is fixed to the lower portion of the rotating shaft, a flow guide pipe is fixed to the outer side of the hollow disc, a flow limiting pipe is arranged on the outer side of the flow guide pipe, a rotary joint I is fixed to the top of the rotating shaft, and the rotary joint I is fixedly connected with the return pipe. According to the utility model, the stirring device is arranged in the liquid storage tank, so that the surfactant in the liquid storage tank can be stirred, and the liquid sedimentation is further prevented by matching with the liquid spraying hole at the bottom of the rotating shaft, the effect of reducing the pressure and increasing the injection of the surfactant is increased, and the damage of the diaphragm pump is prevented by matching with the filter.

Description

Pressure-reducing injection-increasing surfactant dosing and dispersing device

Technical Field

The utility model relates to a pressure-reducing injection-increasing surfactant dosing and dispersing device, and belongs to the technical field of oil exploitation equipment.

Background

If the oil field is not exploited properly, the stratum can be greatly damaged, particularly, the low-permeability oil field is obvious, so that the development benefit is effectively improved by adopting the development idea of injection-production synchronous water injection at present, but the pressure of a water injection well is generally higher at present, the water injection is difficult, the stratum pressure is reduced quickly, and therefore, the pressure-reducing and injection-increasing surfactant is injected into the water injection well at present.

At present, a certain amount of pure medicinal surfactant, a clay stabilizer and water are stirred and mixed in a reaction kettle, then the discharged materials are conveyed to the site, the discharged surfactant is placed in a liquid storage tank on the site, the surfactant is injected into a water injection pipeline of a water injection well by a pump, the charging and dispersing of the pressure-reducing injection-increasing surfactant are completed, but the pressure-reducing injection-increasing surfactant can generate precipitate during transportation or storage in the liquid storage tank, so that the effect of the surfactant can be influenced, and the precipitate is sucked into a pump body to cause damage to the pump body and influence the service life of the pump.

SUMMERY OF THE UTILITY MODEL

The utility model provides a medicine adding and dispersing device for a pressure reducing and injection increasing surfactant, which solves the problems that the effect of the surfactant is influenced because the existing pressure reducing and injection increasing surfactant can generate precipitates when being transported or stored in a liquid storage tank, and the service life of a pump is influenced because the precipitates are damaged when being pumped into the pump body.

The utility model relates to a pressure-reducing injection-increasing surfactant dosing and dispersing device, which comprises a liquid storage tank, wherein the top of the liquid storage tank is provided with a liquid inlet pipe, the bottom of the liquid storage tank is provided with a liquid outlet pipe, the liquid outlet pipe is connected with a filter, the lower end of the filter is connected with a connecting pipe, the connecting pipe is connected with two diaphragm pumps which are arranged in parallel, the outlet of the diaphragm pump is connected with a conveying pipe, the conveying pipe is provided with a flowmeter, check valve and manometer are equipped with the back flow on the conveyer pipe between flowmeter and the diaphragm pump, all be equipped with the valve on back flow and the drain pipe, the pivot is installed to the liquid storage pot internal rotation, the pivot lower part is fixed with hollow dish, the outside of hollow dish is fixed with the honeycomb duct, the outside of honeycomb duct is equipped with the current-limiting pipe, the top of pivot is fixed with rotary joint one, rotary joint one fixed connection back flow is equipped with the liquid way of intercommunication hollow dish and rotary joint one in the pivot, the bottom of pivot is equipped with the hydrojet hole of intercommunication liquid way.

Preferably, the upper part of the rotating shaft is sleeved with a supporting sleeve which is fixed on the inner wall of the top of the liquid storage tank, the upper part of the rotating shaft is rotatably installed on the supporting sleeve through a bearing, the lower part of the bearing is provided with a bearing sealing cover, the lower part of the rotating shaft is sleeved with a wear-resistant inner sleeve, the outer side of the wear-resistant inner sleeve is provided with a wear-resistant outer sleeve, the outer side of the wear-resistant outer sleeve is fixed with a supporting rod, and the supporting rod is fixed on the liquid storage tank. The rotating shaft rotates more stably, and the installation is more convenient and faster.

Preferably, the filter comprises a supporting cylinder, the upper end and the lower end of the supporting cylinder are respectively in threaded connection with an upper cover and a lower cover, a top inlet of the upper cover is fixedly connected with a telescopic corrugated pipe, the other end of the telescopic corrugated pipe is fixedly connected with a liquid outlet pipe, an outlet of the lower cover is fixedly connected with a second rotary joint, the lower end of the second rotary joint is fixed with a connecting pipe, and a filter screen and filter cloth are arranged in the supporting cylinder. The supporting cylinder can be conveniently taken down to clean the filter screen and the filter cloth. The filter cloth can also be a filter membrane.

Preferably, a support ring is fixed in the support cylinder, at least one filter screen is arranged above the support ring, the aperture of the mesh of the filter screen below is smaller than that of the mesh of the filter screen above, a support ring I is fixed on the outer side of the filter screen, a support ring I below is supported on the support ring, a spacer sleeve I is arranged above each support ring, the top of the spacer sleeve I at the top is in contact with the bottom of the upper cover, and the filter screen is of an upward convex structure with the middle higher than the outer side. The filter screen is protruding structure, can dash impurity to the outside, prevents to block up the filter screen.

Preferably, a second support ring is arranged below the support ring, a support net is fixed in an inner hole of the second support ring, an annular groove is formed in the outer side of the second support ring, the filter cloth is arranged above the support net, the outer side of the filter cloth is pressed in the annular groove through a pressing ring, a second spacer sleeve is arranged below the second support ring, the lower portion of the second spacer sleeve is in contact with the inner wall of the lower cover, and seal rings are arranged between the end portions of two ends of the support cylinder and the upper cover and the lower cover. The filter cloth is convenient to detach for cleaning or replacing.

The utility model has the following beneficial effects:

through be equipped with the reaction force driven agitating unit who utilizes the liquid blowout of the partial backward flow of diaphragm pump output to produce in the liquid storage pot, can stir the surfactant storage pot to the hydrojet hole of cooperation pivot bottom further prevents liquid sediment, increases the effect of stepping down and increasing the injection surfactant, and cooperation filter prevents that the diaphragm pump from damaging, increases the life of diaphragm pump, and the diaphragm pump is one for one, and is safer, perhaps two diaphragm pumps use simultaneously, increases the output power.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is an enlarged view of the structure at B in FIG. 1;

FIG. 4 is a schematic top view of the hollow plate;

FIG. 5 is a schematic view of the filter construction;

FIG. 6 is an enlarged view of the structure at C in FIG. 5;

in the figure: 1. a first rotary joint; 2. a liquid storage tank; 3. a rotating shaft; 4. a flow guide pipe; 5. a hollow disc; 6. a wear-resistant inner sleeve; 7. a liquid outlet pipe; 8. a bellows; 9. a support cylinder; 10. the device comprises a connecting pipe, 11, a diaphragm pump, 12, a return pipe, 13, a flowmeter, 14, a one-way valve, 15, a conveying pipe, 16, a pressure gauge, 17, a supporting rod, 18, a wear-resistant outer sleeve, 19, a flow limiting pipe, 20, a liquid inlet pipe, 21, an upper cover, 22, a first spacer sleeve, 23, a filter screen, 24, a supporting ring, 25, a pressing ring, 26, filter cloth, 27, a second supporting ring, 28, a lower cover, 29, a second rotary joint, 30, a second spacer sleeve, 31, a supporting net, 32, a first supporting ring, 33, a liquid spraying hole, 34 and a supporting sleeve.

Detailed Description

The present invention will be further described with reference to the following examples.

Embodiment 1, as shown in fig. 1 to 6, the present invention is a device for adding and dispersing a pressure-reducing injection-increasing surfactant, comprising a liquid storage tank 2, a liquid inlet pipe 20 is disposed at the top of the liquid storage tank 2, a liquid outlet pipe 7 is disposed at the bottom of the liquid storage tank 2, the liquid outlet pipe 7 is connected with a filter, a lower end of the filter is connected with a connecting pipe 10, the connecting pipe 10 is connected with two diaphragm pumps 11 disposed in parallel, an outlet of the diaphragm pump 11 is connected with a delivery pipe 15, the delivery pipe 15 is provided with a flow meter 13, a check valve 14 and a pressure gauge 16, a return pipe 12 is disposed on the delivery pipe 15 between the flow meter 13 and the diaphragm pumps 11, a rotating shaft 3 is rotatably mounted in the liquid storage tank 2, a hollow disc 5 is fixed at the lower part of the rotating shaft 3, a flow guide pipe 4 is fixed at the outer side of the hollow disc 5, a flow-limiting pipe 19 is disposed at the outer side of the flow guide pipe 4, a rotary joint 1 is fixed at the top of the rotating shaft 3, the rotary joint 1 is fixedly connected with the return pipe 12, a liquid channel communicated with the hollow disc 5 and the first rotary joint 1 is arranged in the rotary shaft 3, and a liquid spraying hole 33 communicated with the liquid channel is arranged at the bottom of the rotary shaft 3.

The upper part of the rotating shaft 3 is sleeved with a supporting sleeve 34, the supporting sleeve 34 is fixed on the inner wall of the top of the liquid storage tank 2, the upper part of the rotating shaft 3 is rotatably installed on the supporting sleeve 34 through a bearing, the lower part of the bearing is provided with a bearing sealing cover, the lower part of the rotating shaft 3 is sleeved with a wear-resistant inner sleeve 6, the outer side of the wear-resistant inner sleeve 6 is provided with a wear-resistant outer sleeve 18, the outer side of the wear-resistant outer sleeve 18 is fixed with a supporting rod 17, and the supporting rod 17 is fixed on the liquid storage tank 2.

During operation, the surfactant that the preparation was transported well gets into liquid storage pot 2 from feed liquor pipe 20, then starts diaphragm pump 11, and diaphragm pump 11 extracts the surfactant in the liquid storage pot 2 and sends into the water injection pipe of water injection well from conveyer pipe 15 after filtering through the filter, gets into in the oil well to a small part of liquid flows back to hollow dish 5 through back flow pipe 12, then spouts from current limiting pipe 19, drives pivot 3 and rotates, thereby stirs the liquid in the liquid storage pot 2, prevents to deposit.

Embodiment 2, on the basis of embodiment 1, the filter includes a support cylinder 9, the upper end and the lower end of the support cylinder 9 are respectively in threaded connection with an upper cover 21 and a lower cover 28, the top inlet of the upper cover 21 is fixedly connected with a telescopic bellows 8, the other end of the telescopic bellows 8 is fixedly connected with a liquid outlet pipe 7, the outlet of the lower cover 28 is fixedly connected with a second rotary joint 29, the lower end of the second rotary joint 29 is fixed with a connecting pipe 10, and a filter screen 23 and a filter cloth 26 are arranged in the support cylinder 9.

Support cylinder 9 internal fixation has support ring 24, and the top of support ring 24 is equipped with no less than one filter screen 23, and the aperture of the mesh of below filter screen 23 is less than the mesh aperture of top filter screen 23, and the outside of filter screen 23 is fixed with support ring one 32, and support ring one 32 of below supports on support ring 24, and the top of every support ring 24 is equipped with spacer bush one 22, and the contact of the bottom of spacer bush one 22 top and upper cover 21 of the top, filter screen 23 is the middle convex structure that is higher than the outside.

A second support ring 27 is arranged below the support ring 24, a support net 31 is fixed in an inner hole of the second support ring 27, an annular groove is formed in the outer side of the second support ring 27, the filter cloth 26 is arranged above the support net 31, the outer side of the filter cloth 26 is pressed in the annular groove through a press ring 25, a second spacer sleeve 30 is arranged below the second support ring 27, the lower portion of the second spacer sleeve 30 is in contact with the inner wall of the lower cover 28, and seal rings are arranged between the end portions of the two ends of the support cylinder 9 and the upper cover 21 and the lower cover 28.

When the filter screen 23 needs to be cleaned or the filter cloth 26 needs to be replaced, the supporting cylinder 9 can be grasped, the lower cover 28 is rotated, the lower portion of the supporting cylinder 9 is separated from the lower cover 28, then the upper cover 21 is grasped, the supporting cylinder 9 is rotated, the supporting cylinder 9 can be separated from the upper cover 21, then the upper cover 21 is moved upwards, the supporting cylinder 9 is taken out, then the first spacer sleeve 22 and the second spacer sleeve 30 are taken out, the filter screen 23 is taken down for cleaning, the press ring 25 is taken out, the filter cloth 26 is taken out for replacement, after a new filter cloth 26 is replaced, the press ring 25 is used for pressing, then the second support ring 27 is placed in the lower portion of the supporting cylinder 9, then the second spacer sleeve 30 is used for propping, then the filter screen 23 is placed, the first spacer sleeve 22 is used for spacing, then the upper end of the supporting cylinder 9 is screwed at the upper cover 21, then the lower end of the supporting cylinder 9 is screwed at the lower cover 28, and cleaning and replacement are completed.

In summary, the utility model can stir the surfactant in the liquid storage tank by arranging the stirring device driven by the reaction force generated by the ejection of the part of the backflow liquid output by the diaphragm pump in the liquid storage tank, and further prevent the liquid from precipitating by matching with the liquid ejection hole at the bottom of the rotating shaft, thereby increasing the effect of reducing the pressure and increasing the injection of the surfactant, preventing the diaphragm pump from being damaged by matching with the filter, prolonging the service life of the diaphragm pump, and using the diaphragm pump for one use more safely or using two diaphragm pumps simultaneously to increase the output force.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "up", "down", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are for convenience only to describe the present invention without requiring the present invention to be necessarily constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Claims

1. The utility model provides a depressor increases and annotates surfactant agent medicine dispersion devices, includes liquid storage pot (2), and the top of liquid storage pot (2) is equipped with feed liquor pipe (20), and the bottom of liquid storage pot (2) is equipped with drain pipe (7), its characterized in that: the liquid outlet pipe (7) is connected with a filter, the lower end of the filter is connected with a connecting pipe (10), the connecting pipe (10) is connected with two diaphragm pumps (11) which are arranged in parallel, the outlet of each diaphragm pump (11) is connected with a conveying pipe (15), a flowmeter (13), a one-way valve (14) and a pressure gauge (16) are arranged on the conveying pipe (15) between the flowmeter (13) and the diaphragm pump (11), a return pipe (12) is arranged on the conveying pipe (15) between the liquid storage tank (2) and a rotating shaft (3) are rotatably arranged, a hollow disc (5) is fixed on the lower portion of the rotating shaft (3), a guide pipe (4) is fixed on the outer side of the hollow disc (5), a flow limiting pipe (19) is arranged on the outer side of the guide pipe (4), a rotary joint I (1) is fixed on the top of the rotating shaft (3), the rotary joint I (1) is fixedly connected with the return pipe (12), a liquid channel for communicating the hollow disc (5) and the rotary joint I (1) is arranged in the rotating shaft (3), the bottom of the rotating shaft (3) is provided with a liquid spraying hole (33) communicated with the liquid channel.

2. The device for adding and dispersing the surfactant for pressure reduction and injection increase according to claim 1, wherein: the upper portion cover of pivot (3) has support cover (34), supports cover (34) and fixes on liquid storage pot (2) top inner wall, and the upper portion of pivot (3) is passed through the bearing and is rotated and install on supporting cover (34), and the lower part of bearing is equipped with the bearing seal lid, and the lower part cover of pivot (3) has wear-resisting endotheca (6), and the outside of wear-resisting endotheca (6) is equipped with wear-resisting overcoat (18), and the outside of wear-resisting overcoat (18) is fixed with bracing piece (17), and bracing piece (17) are fixed on liquid storage pot (2).

3. The device for adding and dispersing the surfactant for pressure reduction and injection increase according to claim 2, wherein: the filter comprises a supporting cylinder (9), the upper end and the lower end of the supporting cylinder (9) are respectively in threaded connection with an upper cover (21) and a lower cover (28), a top inlet fixedly connected with telescopic corrugated pipe (8) of the upper cover (21), the other end fixedly connected with drain pipe (7) of the telescopic corrugated pipe (8), an outlet fixedly connected with a rotary joint II (29) of the lower cover (28), the lower end of the rotary joint II (29) is fixed with a connecting pipe (10), and a filter screen (23) and filter cloth (26) are arranged in the supporting cylinder (9).

4. The device for adding and dispersing the surfactant for pressure reduction and injection increase according to claim 3, wherein: support section of thick bamboo (9) internal fixation has support ring (24), the top of support ring (24) is equipped with and is no less than one filter screen (23), the aperture of the mesh of below filter screen (23) is less than the mesh aperture of top filter screen (23), the outside of filter screen (23) is fixed with lock ring (32), lock ring (32) of below support ring (32) support on support ring (24), the top of every support ring (24) is equipped with spacer sleeve (22), the bottom contact of spacer sleeve (22) top and upper cover (21) of the top, filter screen (23) are the middle upward convex structure that is higher than the outside.

5. The device for adding and dispersing the surfactant for pressure reduction and injection enhancement according to claim 4, wherein: the lower part of the support ring (24) is provided with a second support ring (27), a support net (31) is fixed in an inner hole of the second support ring (27), the outer side of the second support ring (27) is provided with an annular groove, the filter cloth (26) is arranged above the support net (31), the outer side of the filter cloth (26) is pressed in the annular groove through a press ring (25), the lower part of the second support ring (27) is provided with a second spacer sleeve (30), the lower part of the second spacer sleeve (30) is in contact with the inner wall of the lower cover (28), and sealing rings are arranged between the end parts of two ends of the support cylinder (9) and the upper cover (21) and the lower cover (28).