CN217602634U - Oil well casing gas recovery device - Google Patents

Abstract

The utility model relates to oil production equipment technical field, concretely relates to oil well casing gas recovery unit. The box comprises a box body, the box internal fixation has first baffle, the box internal fixation on first baffle right side has the second baffle, be provided with the clearance between second baffle upper end and the box roof, the box internal fixation on second baffle right side has the third baffle, be provided with the clearance between third baffle lower extreme and the box bottom plate, the box part on first baffle left side and third baffle right side is the filter chamber, be provided with filter equipment in the filter chamber, the filter equipment below is provided with pull throughs, be provided with collection device on the box bottom plate of pull throughs below. The utility model discloses, convenient to use can carry out effectual mediation to the filter screen, when dredging the filter screen, is discharged the box after the impurity of being intercepted by the filter screen is convenient to be collected, and the fault rate is low, low in manufacturing cost, and is effectual to the treatment effect of sleeve pipe gas.

Description

Oil well casing gas recovery device

Technical Field

The utility model relates to oil production equipment technical field, concretely relates to oil well casing gas recovery unit.

Background

In the oil well production process, the influence of stratum pressure drive is received, oil flows from the shaft bottom along pit shaft from bottom to top, along with the gradual reduction of pressure, the associated gas of dissolving in the oil can separate out from the oil mixture, gets into the annular space between sleeve pipe and the oil pipe, has formed sleeve pipe gas, can use sleeve pipe gas recovery unit when retrieving the associated gas of sleeve pipe inside, but can not effectually avoid the device to be blockked up by the impurity in the gas when current device filters the impurity in the sleeve pipe gas.

In a patent document with the application number of CN202110325096.9 (the invention name is: a casing gas recovery device for an oil production well), it is described that "a first filter chamber, a second filter chamber and a third filter chamber are sequentially provided inside the associated gas treatment tank, the first filter chamber is provided at one end inside the associated gas treatment tank, the second filter chamber is provided at an intermediate position inside the associated gas treatment tank, the third filter chamber is provided at the other end inside the associated gas treatment tank, the first filter chamber and the second filter chamber are connected by a first communication port, the first communication port is located at the upper end inside the associated gas treatment tank, the second filter chamber and the third filter chamber are connected by a second communication port, and the second communication port is located at the lower end inside the associated gas treatment tank; a first filter screen is assembled in the first filter cavity, a second filter screen is assembled in the second filter cavity, a third filter screen is assembled in the third filter cavity, circulating cleaning mechanisms are assembled in the first filter cavity, the second filter cavity and the third filter cavity, and the second communication port is positioned at the lower end of the first filter screen, the second filter screen or the third filter screen; the circulating cleaning mechanism comprises a transmission motor, two limiting slide rails and two limiting meshed racks, the transmission motor is fixed at one end of the associated gas treatment box and is positioned at one end of the first filter chamber, the second filter chamber or the third filter chamber, the output end of the transmission motor penetrates through the associated gas treatment box and is fixedly connected with a transmission shaft rod, the transmission shaft rod is positioned inside the first filter chamber, the second filter chamber or the third filter chamber, a guide rail is arranged on the outer side of the transmission shaft rod, and the guide rail is an elliptical rail obliquely arranged on the outer side of the transmission shaft rod;

two the inner wall in first filter chamber or second filter chamber or third filter chamber both sides is fixed respectively to spacing slide rail, two sliding connection has sliding bottom between the spacing slide rail, sliding bottom's lower extreme is fixed with the transmission pole, transmission pole sliding connection is in the inside of guided way, sliding bottom's upper end is fixed with two spacing supports, two it is connected with the axis of rotation to rotate between the spacing support, the outside of axis of rotation is provided with a plurality of cleaning brushes, the both ends of axis of rotation all are fixed with first driven toothing gear, two the inner wall in first filter chamber or second filter chamber or third filter chamber both sides is fixed respectively equally to spacing rodent strip, just spacing rodent strip is located the upper end of spacing slide rail, first driven toothing gear is connected with spacing rodent strip meshing. "

According to the technical scheme recorded in the patent document, when the sleeve air flow passes through the second filter cavity, the sleeve air passes through the upper end of the second filter screen, and the circulating cleaning mechanism corresponding to the second filter screen is located below the second filter screen, so that the risk that the second filter screen is blocked is large, and meanwhile, when the circulating cleaning mechanism below the first filter screen and the third filter screen is used for cleaning the first filter screen and the second filter screen, impurities intercepted by the filter screens easily fall onto the connecting pair of the circulating cleaning mechanism, so that the normal operation of the circulating cleaning mechanism is influenced, and equipment is damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a convenient to use can carry out effectual mediation to the filter screen, can guarantee to carry out effectual filtration treatment's oil well casing gas recovery unit to casing gas.

In order to realize the purpose, the utility model provides a technical scheme is:

the oil well casing gas recovery device comprises a box body, a first baffle is fixed in the box body, a second baffle is fixed in the box body on the right side of the first baffle, a gap is formed between the upper end of the second baffle and a box top plate, a third baffle is fixed in the box body on the right side of the second baffle, a gap is formed between the lower end of the third baffle and a box bottom plate, the box body parts on the left side of the first baffle and the right side of the third baffle are filter chambers, a filter device is arranged in each filter chamber, a dredging device is arranged below the filter device, a collecting device is arranged on the box bottom plate below the dredging device, an inlet pipe is fixed at the left end of the box body and communicated with the left filter chamber, the inlet pipe is positioned below the filter device in the left filter chamber, an outlet pipe is fixed at the right end of the box body and provided with an exhaust fan, the outlet pipe is communicated with the filter chamber on the right side of the filter chamber, an inverted L-shaped upper end of the first baffle is fixed at the upper end of the first baffle, the communicating pipe penetrates through the first baffle, the lower end of the communicating pipe is positioned between the first baffle and the second baffle, a sealing cover is connected with a sealing pipe.

Specifically, the filter device comprises a fixed frame fixed in the filter cavity, and a filter screen is fixed in the fixed frame.

The dredging device comprises a lower frame fixed in a filter cavity, wherein the lower frame is located below a fixed frame, a lifting frame is arranged between the lower frame and the fixed frame, the lifting frame is connected with the lower frame through a plurality of vertical cylinders, a top frame is fixed at the upper end of the lifting frame, the top frame corresponds to the fixed frame, and the upper end of the top frame is arc-shaped.

Specifically, the collecting device comprises an opening formed in a bottom plate of the box body below the filter cavity, and a hopper communicated with the opening is fixed at the lower end of the box body.

Specifically, the lower end of the communicating pipe is close to the bottom plate of the box body.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses, convenient to use can carry out effectual mediation to the filter screen, when dredging the filter screen, is discharged the box after the impurity of being blocked by the filter screen is convenient to be collected, and the fault rate is low, low in manufacturing cost, and is effectual to the treatment effect of sleeve pipe gas.

Drawings

Fig. 1 is a top view of the present invention.

Fig. 2 is a sectional view taken along the line a in fig. 1.

Fig. 3 is a three-dimensional view of the internal structure of the case.

Part names in the drawings are as follows:

an inlet pipe 3 and an outlet pipe 4 of a box body 2 are arranged in the box body 1, an exhaust fan 5 covers 6 a filling pipe 7, a first partition plate 8, a second partition plate 9, a third partition plate 10, an opening hole 11, a hopper 12, a communicating pipe 13, a filter screen 15, a lifting frame 17, a top frame 18 and a lower frame of an air cylinder 19 are fixed on a filter screen 14, and a lifting frame 18 are fixed on a cylinder 19.

Detailed Description

As shown in fig. 1-3, the oil well casing gas recovery device comprises a box body 1, a first partition plate 7 is fixed in the box body 1, a second partition plate 8 is fixed in the box body 1 on the right side of the first partition plate 7, a gap is arranged between the upper end of the second partition plate 8 and a top plate of the box body 1, a third partition plate 9 is fixed in the box body 1 on the right side of the second partition plate 8, a gap is arranged between the lower end of the third partition plate 9 and a bottom plate of the box body 1, the parts of the box body 1 on the left side of the first partition plate 7 and the right side of the third partition plate 9 are filter chambers, a filter device is arranged in each filter chamber, the filter device comprises a fixed frame 14 fixed in each filter chamber, a filter screen 15 is fixed in each fixed frame 14, a dredging device is arranged below the filter device, the dredging device comprises a lower frame 19 fixed in each filter chamber, the lower frame 19 is positioned below the fixed frame 14, a lifting frame 16 is arranged between the lower frame 19 and the fixed frame 14, the lifting frame 16 is connected with the lower frame 19 through a plurality of vertical air cylinders 18, a top frame 17 is fixed on the upper end of the lifting frame 17, the top frame 17 corresponds to the fixed frame 14, the upper end of the dredging device is provided with a collection hopper 10, and the collection device is arranged below the collection hopper of the collection box body 1, and the collection hopper 10.

The left end of the box body 1 is fixed with an inlet pipe 2, the inlet pipe 2 is communicated with a left filter chamber, the inlet pipe 2 is positioned below a filter device in the left filter chamber, the right end of the box body 1 is fixed with an outlet pipe 3, an exhaust fan 4 is installed on the outlet pipe 3, the outlet pipe 3 is communicated with the filter chamber on the right side, the outlet pipe 3 is positioned above the filter device in the filter chamber on the right side, an inverted L-shaped communicating pipe 13 is fixed at the upper end of the first partition plate 7, the communicating pipe 13 penetrates through the first partition plate 7, the lower end of the communicating pipe 13 is positioned between the first partition plate 7 and the second partition plate 8, the lower end of the communicating pipe 13 is close to the bottom plate of the box body 1, a discharge pipe 12 is fixed on the bottom plate of the box body 1 between the first partition plate 7 and the second partition plate 8, a filling pipe 6 is fixed on the top plate of the box body 1 between the first partition plate 7 and the second partition plate 8, and a sealing cover 5 is connected with the upper end of the filling pipe 6 in a thread sealing manner.

The utility model discloses during the use, open closing cap 5, add the detergent in 1 box between to first baffle 7 and the second baffle 8 through filler pipe 6, then with 5 threaded seal of closing cap connection in 6 upper ends of filler pipe, start air exhauster 4, produce the negative pressure in the box 1, sleeve pipe gas is through advancing pipe 2 and enter into left filter chamber earlier and go upward in left filter chamber, the sleeve pipe gas that goes upward in left filter chamber is filtered by filter screen 15 in the left filter chamber, sleeve pipe gas after being filtered by filter screen 15 in the left side filter chamber enters into box 1 between first baffle 7 and the second baffle 8 through communicating pipe 13, enter into sleeve pipe gas in 1 box between first baffle 7 and the second baffle 8 and get into between second baffle 8 and the third baffle 9 through the clearance between 8 upper ends of second baffle and the roof of box 1 after the detergent washing and go upward between second baffle 8 and the third baffle 9 and down, then, sleeve pipe gas can be carried out the filter chamber after being filtered by filter screen 15 on right side filter the filter chamber after the filter screen 15 is gone upward through filter pipe 3. When needs dredge filter screen 15, start cylinder 18 and make up and down reciprocating motion of lift frame 16 and top frame 17, utilize top frame 17 to strike fixed frame 14, and then make fixed frame 14 and the filter screen 15 in it shake, and then make the impurity that glues on covering filter screen 15 break away from with filter screen 15, the impurity that breaks away from filter screen 15 can enter into hopper 11 in, open hopper 11 and can discharge impurity, open calandria 12, can discharge detergent between first baffle 7 and the second baffle 8 and the impurity in it. The utility model discloses, convenient to use can carry out effectual mediation to filter screen 15, when dredging filter screen 15, does not to the direct application of force of filter screen 15, can effectual protection filter screen 15, and the impurity of being intercepted by filter screen 15 conveniently collects back discharge box 1, and the fault rate is low, low in manufacturing cost, and is good to the treatment effect of sleeve pipe gas.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (5)

1. The oil well casing gas recovery device comprises a box body (1), and is characterized in that a first partition plate (7) is fixed in the box body (1), a second partition plate (8) is fixed in the box body (1) on the right side of the first partition plate (7), a gap is formed between the upper end of the second partition plate (8) and a top plate of the box body (1), a third partition plate (9) is fixed in the box body (1) on the right side of the second partition plate (8), a gap is formed between the lower end of the third partition plate (9) and a bottom plate of the box body (1), the parts of the box body (1) on the left side of the first partition plate (7) and the right side of the third partition plate (9) are both filter chambers, a filter device is arranged in each filter chamber, a dredging device is arranged below the filter device, a collecting device is arranged on the bottom plate of the box body (1) below the dredging device, a pipe (2) is fixed at the left side of the box body (1), the pipe (2) is communicated with the filter chamber on the left side of the filter chamber, the pipe (2) is arranged below the filter device, an outlet pipe (3) is fixed at the right end of the box body (1), an exhaust fan (4) is arranged on the filter chamber, an exhaust fan (3), the right side of the filter chamber is communicated with the filter chamber, a first partition plate (7) is arranged above the filter chamber (13) above the first partition plate (7) fixed on the filter chamber, and a first partition plate (13) above the filter chamber, the lower end of the communicating pipe (13) is positioned between the first partition plate (7) and the second partition plate (8), a calandria (12) is fixed on a bottom plate of the box body (1) between the first partition plate (7) and the second partition plate (8), a filling pipe (6) is fixed on a top plate of the box body (1) between the first partition plate (7) and the second partition plate (8), and a sealing cover (5) is in threaded sealing connection with the upper end of the filling pipe (6).

2. Oil well casing gas recovery device according to claim 1, characterized in that the filtering device comprises a fixed frame (14) fixed inside the filtering chamber, a screen (15) being fixed inside the fixed frame (14).

3. The oil well casing gas recovery device according to claim 2, wherein the dredging device comprises a lower frame (19) fixed in the filter cavity, the lower frame (19) is positioned below the fixed frame (14), a lifting frame (16) is arranged between the lower frame (19) and the fixed frame (14), the lifting frame (16) is connected with the lower frame (19) through a plurality of vertical air cylinders (18), a top frame (17) is fixed at the upper end of the lifting frame (16), the top frame (17) corresponds to the fixed frame (14), and the upper end of the top frame (17) is arc-shaped.

4. The well casing gas recovery device according to claim 2, characterized in that the collecting device comprises an opening (10) provided in the floor of the casing (1) below the filter chamber, and a hopper (11) communicating with the opening (10) is fixed to the lower end of the casing (1).

5. An oil well casing gas recovery device according to claim 1, wherein the lower end of the communicating pipe (13) is close to the floor of the casing (1).

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