Small molecule imbibition agent adding device

Abstract

The utility model discloses a small-molecule imbibition agent adding device and relates to the technical field of oil extraction. A gear pump is installed on the barrel cover, an outlet of the gear pump is connected with a liquid adding pipe, an inlet of the gear pump is connected with a liquid inlet pipe, the liquid inlet pipe penetrates through the barrel cover and then is connected with a hose, the bottom of the hose is connected with a liquid suction sleeve, a liquid inlet is formed in the side face of the liquid suction sleeve, a counter is installed on an input shaft of the gear pump and provided with a display screen, and the counter and the display screen are of a split structure. The display screen is installed on the can cover. The utility model has the beneficial effects that the gear pump is arranged to suck raw materials, the gear pump is a positive displacement pump, the amount of liquid discharged by the gear pump is fixed every time the gear rotates by one circle, the adding amount of a small molecule imbibition agent can be known by recording the number of turns of the gear through the display screen, the metering is accurate, a special flow meter is not needed, and meanwhile, no residue is left at the bottom of the barrel; the barrel cover is simple to mount.

Description

Technical Field

[0001] The utility model relates to the technical field of oil production, in particular to a small molecule imbibing agent adding device. Background Art

[0002] Spontaneous imbibition is an important mechanism for improving oil recovery in unconventional reservoirs. Imbibition is a process in which the wetting fluid is spontaneously absorbed into the pores to expel the non-wetting fluid by the action of capillary force. Capillary force is the main driving force of the imbibition process. The imbibition agent is a mixture of multiple surfactant mother solutions and clean water in a certain proportion.

[0003] At present, when adding imbibing agent mother liquor at the oil field fracturing site, the raw material barrel is opened manually and added using a hand pump or an electric pump. The hand pump or the electric pump is a centrifugal pump, and the flow rate is related to the back pressure and the rotation speed, and the measurement is inaccurate. Utility Model Content

[0004] In order to solve the problem of inaccurate metering when adding imbibing agent mother liquid during oil field fracturing, the utility model provides a small molecule imbibing agent adding device.

[0005] The technical solution provided by the utility model is: a small molecule absorbing agent adding device, comprising a raw material barrel and a barrel cover, a gear pump is installed on the barrel cover, the gear pump outlet is connected to a liquid adding pipe, the gear pump inlet is connected to a liquid inlet pipe, the liquid inlet pipe passes through the barrel cover and is connected to a hose, the bottom of the hose is connected to a liquid suction sleeve, a liquid inlet is opened on the side of the liquid suction sleeve, a counter is installed on the input shaft of the gear pump, the counter has a display screen, the counter and the display screen are split structures, and the display screen is installed on the barrel cover.

[0006] Two support bars are provided at the bottom of the raw material barrel, and the support bars are located on both sides of the bottom of the raw material barrel. The raw material barrel is provided with a sunken concave surface between the two support bars. The concave surface and the bottom surface of the raw material barrel are transitioned through a slope. A permanent magnet sheet is pasted on the concave surface, and the liquid absorption sleeve is made of carbon steel.

[0007] The bottom of the barrel cover is provided with positioning pins which are evenly distributed in the circumference, and the upper edge of the raw material barrel is provided with positioning holes which are evenly distributed in the circumference, and the positioning pins are inserted into the positioning holes.

[0008] The beneficial effects of the utility model are as follows: by setting a gear pump to suck the raw materials, since the gear pump is a volumetric pump, the amount of liquid discharged by the gear pump is fixed every time the gear rotates one circle, and the number of circles the gear rotates can be recorded by the display screen to know the amount of small molecule absorbent added, the measurement is accurate, no special flow meter is required, and at the same time there is no residue at the bottom of the barrel, and the barrel cover is easy to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Attached Figure 1 It is a structural schematic diagram of the utility model;

[0010] Attached Figure 2 Yes Figure 1 A magnified image of point A;

[0011] Attached Figure 3 Yes Figure 1 Enlarged view of point B.

[0012] In the figure: 1-raw material barrel, 2-barrel cover, 3-gear pump, 4-liquid inlet pipe, 5-liquid adding pipe, 6-hose, 7-counter, 8-display screen, 9-support bar, 10-concave surface, 11-liquid suction sleeve, 12-liquid inlet, 13-permanent magnet sheet, 14-positioning pin shaft, 15-positioning hole. DETAILED DESCRIPTION

[0013] like Figures 1 to 3 As shown, a small molecule absorbing agent adding device includes a raw material barrel 1 and a barrel cover 2, a gear pump 3 is installed on the barrel cover 2, the outlet of the gear pump 3 is connected to a liquid adding pipe 5, the inlet of the gear pump 3 is connected to a liquid inlet pipe 4, the liquid inlet pipe 4 passes through the barrel cover 2 and is connected to a hose 6, the bottom of the hose 6 is connected to a liquid suction sleeve 11, and a liquid inlet 12 is opened on the side of the liquid suction sleeve 11, a counter 7 is installed on the input shaft of the gear pump 3, the counter 7 has a display screen 8, the counter 7 and the display screen 8 are split structures, and the display screen 8 is installed on the barrel cover 2.

[0014] Since the gear pump 3 is a volumetric pump, the amount of liquid discharged by the gear pump 3 is fixed each time the gear rotates one circle. By recording the number of circles the gear rotates through the display screen 8, the amount of small molecule sorbent added can be known, and the measurement is accurate without the need for a special flow meter.

[0015] Two support bars 9 are provided at the bottom of the raw material barrel 1 for fixing the raw material barrel 1 during transportation. The support bars 9 are located on both sides of the bottom of the raw material barrel 1. The raw material barrel 1 is provided with a sunken concave surface 10 between the two support bars 9. The concave surface 10 and the bottom surface of the raw material barrel 1 are transitioned through a slope. A permanent magnet sheet 13 is pasted on the concave surface 10. The liquid absorption sleeve 11 is made of carbon steel. The permanent magnet sheet 13 absorbs the liquid absorption sleeve 11 to the concave surface 10. The setting of the liquid absorption sleeve 11 and the concave surface 10 can clean the liquid in the raw material barrel 1 to avoid residue at the bottom of the barrel.

[0016] The bottom of the barrel cover 2 is provided with positioning pins 14 evenly distributed around the circumference, and the upper edge of the raw material barrel 1 is provided with positioning holes 15 evenly distributed around the circumference. The positioning pins 14 are inserted into the positioning holes 15. The barrel cover 2 and the raw material barrel 1 are positioned by the positioning pins 14, the positioning holes 15 and the weight of the barrel cover 2 itself, and there is no need for the ordinary barrel cover 2 to be fixed by threaded rotation.

Claims

1. A small molecule absorbing agent adding device, comprising a raw material barrel (1) and a barrel cover (2), characterized in that: A gear pump (3) is installed on the barrel cover (2), the outlet of the gear pump (3) is connected to a liquid adding pipe (5), the inlet of the gear pump (3) is connected to a liquid inlet pipe (4), the liquid inlet pipe (4) passes through the barrel cover (2) and is connected to a hose (6), the bottom of the hose (6) is connected to a liquid suction sleeve (11), and a liquid inlet (12) is opened on the side of the liquid suction sleeve (11), a counter (7) is installed on the input shaft of the gear pump (3), the counter (7) has a display screen (8), the counter (7) and the display screen (8) are separate structures, and the display screen (8) is installed on the barrel cover (2).

2. A small molecule imbibing agent adding device according to claim 1, characterized in that: Two support bars (9) are provided at the bottom of the raw material barrel (1), and the support bars (9) are located at two sides of the bottom of the raw material barrel (1). The raw material barrel (1) is provided with a sunken concave surface (10) between the two support bars (9). The concave surface (10) and the bottom surface of the raw material barrel (1) are transitioned through a slope. A permanent magnet sheet (13) is pasted on the concave surface (10), and the liquid suction sleeve (11) is made of carbon steel.

3. A small molecule imbibing agent adding device according to claim 2, characterized in that: The bottom of the barrel cover (2) is provided with positioning pins (14) evenly distributed around the circumference, and the upper edge of the raw material barrel (1) is provided with positioning holes (15) evenly distributed around the circumference, and the positioning pins (14) are inserted into the positioning holes (15).

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