CN210057915U

CN210057915U - Skid-mounted oil extraction auxiliary agent quick dissolving device

Info

Publication number: CN210057915U
Application number: CN201920823600.6U
Authority: CN
Inventors: 高城; 陈秀; 王子鹏
Original assignee: Daqing Longxin Machinery Manufacturing Co Ltd
Current assignee: Daqing Longxin Machinery Manufacturing Co Ltd
Priority date: 2019-06-03
Filing date: 2019-06-03
Publication date: 2020-02-14
Anticipated expiration: 2029-06-03

Abstract

The utility model discloses a skid-mounted oil extraction auxiliary agent quick dissolving device, which belongs to the field of polymer dissolution, and is characterized in that a rack, a screw conveyor and a stirring tank are fixed on a prying seat, a dry powder storage tank and a water-powder mixing device are respectively fixed on the rack, and a discharge port of the dry powder storage tank is communicated with a feed inlet of the water-powder mixing device through a dry powder metering screw; one end of the screw conveyor is a discharge hole, the other end of the screw conveyor is a motor connected with a driving shaft inside the screw conveyor, and the screw conveyor is connected with a buffer hopper; the discharge gate of water-powder mixing arrangement corresponds to the entry of buffer hopper, and screw conveyer's discharge gate and the entry linkage of agitator, the material export I of agitator and II tube couplings of the material entry of homogenizer, the material export II of homogenizer in proper order with more than one agitator tank tube coupling. The device has the advantages of small occupied area, high preparation efficiency, short process flow and low cost, and is suitable for the stage injection oil displacement application of a plurality of mobile wells on land and the injection of polymer mother liquor of an offshore platform.

Description

Skid-mounted oil extraction auxiliary agent quick dissolving device

Technical Field

The utility model relates to a polymer dissolves the field, in particular to sled dress oil recovery auxiliary agent quick dissolving device.

Background

In the oil industry, the exploitation of oil by using the energy of an oil reservoir is generally called primary oil recovery; injecting water and gas into the oil layer to supplement energy to the oil layer to recover oil, which is called secondary oil recovery; and the chemical substances are used for improving the mutual performance of oil, gas, water and rock and producing more oil, so that the tertiary oil recovery is called. As the development of the field development history, the individual blocks have gradually transitioned from the secondary recovery phase to the tertiary recovery phase.

An effective method for the widespread use of tertiary oil recovery is chemical flooding, where the preparation system in the surface system needs to prepare a large amount of mother liquor for chemical flooding. At present, the polymer flooding technology and the ternary complex flooding technology are the most mature technologies with high recovery ratio in the tertiary oil recovery technology.

At present, a dispersing device and curing dissolving tank process technology is mostly adopted for dissolving polymer solutions at home and abroad, the process technology is mature after years of application, but due to the fact that the curing process needs long time, curing time is 1.5-3 hours according to different molecular weights, the polymer solution curing slow-storage quantity is large, the number of curing matching equipment is large, the occupied area is large, the overall investment is high, the energy consumption is high, the equipment maintenance cost is high, and the overall integrated skid-mounted modularization cannot be realized.

Disclosure of Invention

To the not enough of prior art, the utility model provides a sled dress oil recovery auxiliary agent quick dissolving device.

The utility model discloses a skid-mounted oil extraction auxiliary agent quick dissolving device, which is characterized in that a frame, a spiral conveyor and a stirring tank are fixed on a skid seat, a dry powder storage tank and a water-powder mixing device are respectively fixed on the frame, and a discharge port of the dry powder storage tank is communicated with a feed inlet of the water-powder mixing device through a dry powder metering screw; one end of the screw conveyor is a discharge hole, the other end of the screw conveyor is a motor connected with a driving shaft inside the screw conveyor, and the screw conveyor is connected with a buffer hopper; the discharge gate of water-powder mixing arrangement corresponds to the entry of buffer hopper, and screw conveyer's discharge gate and the entry linkage of agitator, the material export I of agitator and II tube couplings of the material entry of homogenizer, the material export II of homogenizer in proper order with more than one agitator tank tube coupling.

As a further improvement of the utility model, the water-powder mixing device is composed of a material distributing tank, a material distributing motor is fixed on the upper cover of the material distributing tank, the output shaft of the material distributing motor is in transmission connection with a stirring shaft I arranged in the center of the material distributing tank through a belt, a material distributing throwing disc is fixed at the bottom end of the stirring shaft I, more than one layer of material distributing thin rods are arranged above the material distributing throwing disc, and a dry powder inlet pipe passes through the upper cover and is arranged in the material distributing tank; a water distribution pipe is fixed around the upper opening of the material distribution tank, and a plurality of water distribution spraying holes are arranged on the water distribution pipe; the water distribution pipe is communicated with an external water pipe.

As a further improvement, the lateral wall of the buffer hopper is provided with a stirring motor I, and the stirring paddle of the stirring motor I is arranged in the buffer hopper in an inclined manner.

As the utility model discloses a further improvement, the agitator from the bottom up is by the working chamber in proper order, transmission chamber I and frame connect gradually and constitute, fixed agitator motor II on the frame, agitator motor II has passed through retarder connection (mixing) shaft II, (mixing) shaft II passes transmission chamber I and until the working chamber, be equipped with material inlet I on the lower extreme lateral wall of working chamber casing, the upper end is equipped with material outlet I, be equipped with rotor I on the (mixing) shaft II of working chamber, it cooperatees with rotor I to be equipped with stator I on the inner wall of working chamber casing.

As a further improvement of the utility model, the stator I is formed by fixing the round platforms I at the circumferential longitudinal and transverse intervals of the inner wall of the working cavity shell, and the round platforms II are formed at the circumferential longitudinal and transverse intervals of the outer surface on the stirring shaft II, and the round platforms I and the round platforms II are arranged in a staggered mode.

As the utility model discloses a further improvement, the homogenizer is connected gradually by homogeneity chamber and transmission chamber II and constitutes, the other end at transmission chamber II is fixed with the homogeneity motor, output shaft II of homogeneity motor is connected through axle sleeve I in transmission chamber II and the homogeneity axle of arranging the homogeneity intracavity in, be equipped with material entry II at the other end in homogeneity chamber, be equipped with material export II in the upper end of homogeneity chamber casing, be equipped with stator II more than a set of on the inner wall ring week of homogeneity chamber casing, be equipped with on the homogeneity axle rather than matched with rotor II.

As a further improvement of the utility model, more than one stator disc is fixed on the homogenizer from the material inlet II to the material outlet II on the inner wall circumference of the homogenizing cavity shell, and the vertical surface of the stator disc is provided with an annular bead I; more than one rotor disc is fixed on the circumference of the homogenizing shaft, an annular rib II is arranged on the edge of each rotor disc, and the inner annular surface of the annular rib I is in clearance fit with the outer annular surface of the annular rib II.

As a further improvement of the utility model, more than one annular bead I is arranged on the vertical surface of the stator disc; the border of rotor dish is equipped with more than one annular bead II, and annular bead II is arranged in the recess that adjacent annular bead I formed, and annular bead I is arranged in the recess that adjacent annular bead II formed.

The utility model discloses a sled dress oil recovery auxiliary agent quick dissolving device, the modularized design of device makes its rational in infrastructure, compact, and area is little, and curing time only needs 15 ~ 25 minutes, prepares efficiently, and process flow is short, with low costs, is adapted to the portable multiwell stage nature of land and pours into oil displacement purpose and offshore platform polymer mother liquor into.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a side view of the present invention;

FIG. 3 is a schematic structural view of the water-powder mixing device of the present invention;

fig. 4 and 5 are schematic structural views of the stirrer of the present invention;

fig. 6 is a front view of the homogenizer of the present invention;

fig. 7 is a cross-sectional view taken along line a-a of fig. 6.

Detailed Description

The utility model discloses a sled dress oil recovery auxiliary agent quick dissolving device, as shown in fig. 1, be fixed frame 3, auger delivery ware 2 and agitator tank 4 on sled seat 1, be fixed with dry powder stock chest 5 and liquid powder mixing arrangement 6 respectively on frame 3, dry powder stock chest 5 adopts the whole sled dress structure of container, on-the-spot hoist and mount take one's place and can put into production work, the process of unloading only needs 2 people to operate to accomplish, its dry powder volume reserves 5 tons can satisfy the production demand of 2 days, dry powder stock chest 5 is sealed, the dry powder adopts the negative pressure dust removal technique in the process of unloading, avoid chemical dust to spill over the polluted environment; the discharge hole of the dry powder storage tank 5 is communicated with the feed inlet of the water-powder mixing device 6 through a dry powder metering screw 7. The water-powder mixing device 6 is composed of a material distributing tank 13, as shown in fig. 3, a 1.5 KW material distributing motor 15 is fixed on an upper cover 14 of the material distributing tank 13, and the rotating speed is 2840 rpm. An output shaft of a material distribution motor 15 is in transmission connection with a stirring shaft I16 arranged in the center of a material distribution tank 13 through a belt, a material distribution throwing disc 17 is fixed at the bottom end of the stirring shaft I16, more than one layer of material distribution thin rods 18 are arranged above the material distribution throwing disc 17, a dry powder feeding pipe 19 penetrates through an upper cover 14 and is arranged above the material distribution thin rods 18 in the material distribution tank 13, a water distribution pipe 20 is fixed on the periphery of the upper opening of the material distribution tank 13, and a plurality of water distribution spraying holes 21 are formed in the water distribution pipe 20 and face the inner wall of the tank body. The diameter of the water distribution pipe 20 and the number and the caliber of the water distribution spraying holes 21 are determined according to the diameter of the tank body, so that a water curtain can be formed around the tank wall of the distribution tank 13, the water distribution pipe 20 is communicated with an external water pipe 22, and a manual ball valve, an electric ball valve and a flow meter are sequentially arranged on the external water pipe 22.

The discharge port of the water-powder mixing device 6 corresponds to the inlet of the buffer hopper 10, the side wall of the buffer hopper 10 is provided with a stirring motor I23 (1.5 KW, the speed ratio of 11 and the revolution range of 18-140 r/min), and a stirring paddle of the stirring motor I23 is obliquely arranged in the buffer hopper 10.

The dry powder and the incoming water are uniformly mixed in the equipment, the dry powder is fully contacted with the water and is cut, dispersed and coagulated under the action of centrifugal force in the positive direction and the negative direction, the relative inability between solid and liquid particles is accelerated, the updating speed of a solid-liquid interface is accelerated, and the dissolving rate of the polymer is accelerated; compact structure, high dissolving efficiency, more than 6 times of the traditional equipment, stable performance (even solution proportion, stable viscosity) and reliable quality, and the polymer can be cured and dissolved in 20 minutes.

The spiral conveyor 2 is connected with a buffer hopper 10, one end of the spiral conveyor 2 is a discharge port 8, the other end of the spiral conveyor is a motor 9 connected with a driving shaft inside the spiral conveyor, the discharge port of the spiral conveyor 2 is connected with an inlet of a stirrer 11, the motor 9 drives a screw pump or a pipeline pump or a centrifugal pump to enable materials to pass through the spiral conveyor 2, and the spiral conveyor 2 has the power of 11kw, the flow rate of 20m for thin film casting/h and the pressure of 0.6 Mpa.

As shown in fig. 4, the stirrer 11 is composed of a working chamber 24, a transmission chamber i 25 and a base 26 which are sequentially fastened and connected through bolts from bottom to top, a stirring motor ii 27 (with a rotation speed of 1400 r/min) is fixed on the base 26, the stirring motor ii 27 is connected with an output shaft i 35 through a speed reducer 28, the output shaft i 35 is connected with a stirring shaft ii 29 arranged in the working chamber 24 through a shaft sleeve ii 36 in the transmission chamber i 25, a material inlet i 31 is arranged on the side wall of the lower end of the working chamber shell 30, a material outlet i 32 is arranged at the upper end, the material inlet i 31 is parallel to the material outlet i 32, a rotor i 33 is arranged on the stirring shaft ii 29 in the working chamber 24, a stator i 34 is arranged on the inner wall of the working chamber shell 30 and matched with the rotor i 33, round platforms i 52 are fixed on the inner wall of the working chamber shell 30 at intervals in the longitudinal and transverse directions on the outer surface of the stirring shaft ii 29, the round tables I52 and the round tables II 53 are arranged in a staggered mode, and the gap between the round tables II 53 is 2-5 mm, namely each round table II 53 is arranged between the adjacent round tables I52; meanwhile, spiral plates can be arranged on the stirring shafts II 29 corresponding to the material inlet I31 and the material outlet I32, as shown in figure 5.

The material outlet I32 of the stirrer 11 is connected with the material inlet II 43 of the homogenizer 12 through a pipeline, and the flow rate of the fluid in the pipeline is as follows: 0.6 m/s. The homogenizer 12 is formed by sequentially connecting a homogenizing cavity 37 and a transmission cavity II 38, as shown in fig. 6, a homogenizing motor 39 (2950 r/min) is fixed at the other end of the transmission cavity II 38, an output shaft II 40 of the homogenizing motor 39 is connected with a homogenizing shaft 42 arranged in the homogenizing cavity 37 through a shaft sleeve I41 in the transmission cavity II 38, a material inlet II 43 is arranged at the other end of the homogenizing cavity 37, a material outlet II 45 is arranged at the upper end of a homogenizing cavity shell 44, the outlet of the material outlet II 45 is connected with a stirring tank 4 through a pipeline, the flow rate of fluid in the pipeline is 0.6m/s, the flow rate can reduce the viscosity loss of the solution, the stirring tank 4 is further connected with the next stirring tank 4 through a pipeline, and the like in sequence, 4-stage stirring is performed, and the rotation number of the stirring motor on the stirring tank 4 is 90-200 rpm. A material inlet II 43 on the homogenizer 12 is vertical to a material outlet II 45, three groups of stators II 46 are arranged on the circumference of the inner wall of the homogenizing cavity shell 44, and three groups of rotors II 47 matched with the homogenizing shaft 42 are arranged on the homogenizing shaft 42; the stator II 46 is formed by fixing three stator discs 48 on the inner wall of a homogenizing cavity shell 44 of the homogenizer 12 from a material inlet II 43 to a material outlet II 45 in the circumferential direction, and two annular ribs I49 are arranged on the vertical surface of each stator disc 48; three rotor disks 50 are fixed on the circumference of the homogenizing shaft 42, two annular ribs II 51 are arranged on the outer edge of each rotor disk 50, the annular ribs II 51 are arranged in grooves formed by the adjacent annular ribs I49, the annular ribs I49 are arranged in grooves formed by the adjacent annular ribs II 51, and the gap between the annular ribs I49 and the grooves is 1-4 mm.

Claims

1. A skid-mounted oil extraction auxiliary agent rapid dissolving device is characterized in that a rack (3), a spiral conveyor (2) and a stirring tank (4) are fixed on a skid seat (1), a dry powder storage tank (5) and a water-powder mixing device (6) are respectively fixed on the rack (3), and a discharge port of the dry powder storage tank (5) is communicated with a feed port of the water-powder mixing device (6) through a dry powder metering screw (7); one end of the screw conveyor (2) is a discharge hole (8), and the other end is a motor (9) connected with a driving shaft inside the screw conveyor, and the screw conveyor is characterized in that the screw conveyor (2) is connected with a buffer hopper (10); the discharge port of the water-powder mixing device (6) corresponds to the inlet of the buffer hopper (10), the discharge port of the screw conveyor (2) is connected with the inlet of the stirrer (11), the material outlet I (32) of the stirrer (11) is connected with the material inlet II (43) of the homogenizer (12) through a pipeline, and the material outlet II (45) of the homogenizer (12) is sequentially connected with more than one stirring tank (4) through a pipeline.

2. The skid-mounted oil extraction auxiliary agent fast dissolving device according to claim 1, wherein the water-powder mixing device (6) is composed of a material distribution tank (13), a material distribution motor (15) is fixed on an upper cover (14) of the material distribution tank (13), an output shaft of the material distribution motor (15) is in transmission connection with a stirring shaft I (16) arranged in the center of the material distribution tank (13) through a belt, a material distribution flail plate (17) is fixed at the bottom end of the stirring shaft I (16), more than one layer of material distribution fine rods (18) are arranged above the material distribution flail plate (17), and a dry powder feeding pipe (19) penetrates through the upper cover (14) and is arranged in the material distribution tank (13); a water distribution pipe (20) is fixed on the periphery of the upper opening of the distribution tank (13), and a plurality of water distribution spraying holes (21) are arranged on the water distribution pipe (20); the water distribution pipe (20) is communicated with an external water pipe (22).

3. The skid-mounted rapid dissolving device for oil recovery additives of claim 1, wherein the side wall of the buffer hopper (10) is provided with a stirring motor I (23), and a stirring paddle of the stirring motor I (23) is obliquely arranged in the buffer hopper (10).

4. The skid-mounted oil recovery aid fast dissolving device as defined in claim 1, wherein the stirrer (11) is formed by sequentially connecting a working chamber (24), a transmission chamber I (25) and a base (26) from bottom to top, a stirring motor II (27) is fixed on the base (26), the stirring motor II (27) is connected with a stirring shaft II (29) through a reducer (28), the stirring shaft II (29) penetrates through the transmission chamber I (25) until the working chamber (24) is formed, a material inlet I (31) is formed in the side wall of the lower end of the working chamber shell (30), a material outlet I (32) is formed in the upper end of the working chamber shell (30), a rotor I (33) is arranged on the stirring shaft II (29) in the working chamber (24), and a stator I (34) matched with the rotor I (33) is arranged on the inner wall of the working chamber shell (30).

5. The skid-mounted oil extraction aid fast dissolving device according to claim 4, wherein the stator I (34) is formed by fixing round platforms I (52) on the inner wall of the working cavity shell (30) at intervals in a circumferential direction, and the round platforms II (53) are fixed on the outer surface of the stirring shaft II (29) at intervals in a circumferential direction, and the round platforms I (52) and the round platforms II (53) are arranged in a staggered mode.

6. The skid-mounted oil extraction aid fast dissolving device as claimed in claim 1, wherein the homogenizer (12) is formed by sequentially connecting a homogenizing chamber (37) and a transmission chamber II (38), a homogenizing motor (39) is fixed at the other end of the transmission chamber II (38), an output shaft II (40) of the homogenizing motor (39) is connected with a homogenizing shaft (42) arranged in the homogenizing chamber (37) through a shaft sleeve I (41) in the transmission chamber II (38), a material inlet II (43) is arranged at the other end of the homogenizing chamber (37), a material outlet II (45) is arranged at the upper end of a homogenizing chamber shell (44), more than one group of stators II (46) are arranged on the circumference of the inner wall of the homogenizing chamber shell (44), and a rotor II (47) matched with the stators II is arranged on the homogenizing shaft (42).

7. The skid-mounted oil recovery aid fast dissolving device as defined in claim 6, wherein more than one stator disc (48) is circumferentially fixed on the inner wall of the homogenizing chamber shell (44) from the material inlet II (43) to the material outlet II (45) of the homogenizer (12), and an annular rib I (49) is arranged on the vertical surface of the stator disc (48); more than one rotor disc (50) is fixed on the circumference of the homogenizing shaft (42), an annular rib II (51) is arranged on the edge of the rotor disc (50), and the inner annular surface of the annular rib I (49) is in clearance fit with the outer annular surface of the annular rib II (51).

8. The quick dissolving device for the oil recovery aid skid-mounted according to claim 7, wherein more than one annular rib I (49) is arranged on the vertical surface of the stator disc (48); the edge of the rotor disc (50) is provided with more than one annular rib II (51), the annular ribs II (51) are arranged in grooves formed by adjacent annular ribs I (49), and the annular ribs I (49) are arranged in grooves formed by adjacent annular ribs II (51).