CN215860118U - Viscosity reduction dosing machine for oil field heavy oil well - Google Patents

Abstract

The utility model discloses a viscosity reduction dosing machine for a heavy oil well in an oil field, which comprises a shell and a viscosity reduction dosing device, wherein the viscosity reduction dosing device comprises a chemical box, a diaphragm pump, a distribution box, a chemical inlet pipe, a chemical outlet pipe, a jet pump connected with the chemical outlet pipe, a high-pressure water inlet pipe connected with the input end of the jet pump and a mixed liquid outlet pipe connected with the output end of the jet pump. The utility model can be suitable for adding medicaments to a shaft of a thick oil well, a wax-containing well and the like in an oil field by arranging the shell and the viscosity-reducing and medicament-adding device, has a combined structure of the diaphragm pump and the jet pump, has low cost, achieves the aim of accurately controlling the medicament adding amount, measures the water amount by the flow meter, generates negative pressure at the nozzle by the jet pump, uniformly mixes the medicaments and the water, injects the mixture into the shaft, is beneficial to viscosity reduction and paraffin removal of the thick oil well and the wax-containing well, increases the crude oil yield of the oil well, and solves the problems that the conventional medicament-adding and viscosity-reducing equipment is inconvenient in water amount measurement, cannot control the medicaments and is not ideal for thick oil exploitation.

Description

Viscosity reduction dosing machine for oil field heavy oil well

Technical Field

The utility model belongs to the technical field of oilfield exploitation, and particularly relates to a viscosity reduction dosing machine for a thick oil well of an oilfield.

Background

At present, along with the continuous deep development of oil fields, oil layers with high viscosity and high wax content have become the production main force, and crude oil produced by the oil layers has great underground exploitation difficulty and great ground management difficulty. In order to improve the production capacity of an oil well and the service life of a well pipe rod pump, improve the maintenance-free period of the oil well and increase the crude oil yield of a heavy oil well, the shaft of the heavy oil well is generally subjected to a drug-adding viscosity reduction measure, and the drug-adding viscosity reduction of the heavy oil well has the following three modes: firstly, a small-flow dosing machine is adopted, although the dosing amount is accurately measured, the accompanying water is not well measured, and the small-flow dosing machine cannot be suitable for an oil well with high casing pressure; secondly, the jet pump is adopted for adding the medicine, so that the problem that the medicine adding amount cannot be controlled exists; thirdly, field management personnel continuously add a certain amount of chemicals into the shaft in a small flow rate, the shaft is adopted to directly and manually add the chemicals, the chemicals are frequently added, the labor intensity of workers is high, and the method is not suitable for the oil well with casing pressure. For field personnel of an oil well with casing pressure, the casing gas is required to be recovered, the reagent can be added into the shaft periodically, the random property of the reagent is high, the problem of small-sized reagent adding and viscosity reduction of the thick oil well can not be solved well, and the effect of thick oil exploitation is not ideal.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model provides a viscosity reduction medicine adding machine for a thick oil well in an oil field, which has the advantages that the viscosity reduction medicine adding machine can be suitable for adding medicines to a shaft of the thick oil well, a wax-containing well and the like in the oil field, has a combined structure of a diaphragm pump and a jet pump, is low in cost, can be used in a combined mode or can be used independently, the medicine adding quantity can be accurately controlled by adjusting the discharge capacity of the diaphragm pump, and the problems that the existing medicine adding viscosity reduction equipment is inconvenient in water quantity metering, the medicines are not easy to control, and the thick oil exploitation is not ideal are solved.

The viscosity reduction dosing machine comprises a shell and a viscosity reduction dosing device for improving the extraction efficiency of thick oil, wherein the viscosity reduction dosing device comprises a chemical box arranged in the shell, a diaphragm pump connected with the chemical box, a distribution box for controlling the operation of the diaphragm pump, a chemical inlet pipe connected with the bottom of the chemical box, a chemical outlet pipe connected with the output end of the diaphragm pump, a jet pump connected with the chemical outlet pipe, a high-pressure water inlet pipe connected with the input end of the jet pump and a mixed liquid outlet pipe connected with the output end of the jet pump, and the distribution box is electrically connected with the diaphragm pump.

Preferably, a door is disposed on one side of the housing, and a hinge is disposed between the door and the housing.

Preferably, the top of the medicament box is provided with a medicament feeding port, and the top of the medicament feeding port is provided with an upper cover.

Preferably, the side wall of the chemical tank is provided with a liquid level meter.

Preferably, the high-pressure water inlet pipe is internally provided with a flow meter.

Preferably, the input end of the high-pressure water inlet pipe is provided with an inlet flange, and the output end of the mixed liquid outlet pipe is provided with an outlet flange.

Preferably, the input end of the high-pressure water inlet pipe is provided with a conical accelerating pipe, and a plurality of spiral guide strips are arranged inside the accelerating pipe.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model can be suitable for adding medicaments to a shaft of a thick oil well, a wax-containing well and the like in an oil field by arranging the shell and the viscosity-reducing and medicament-adding device, has a combined structure of the diaphragm pump and the jet pump, has low cost, can be used in combination or independently, achieves accurate control of the medicament adding amount by adjusting the discharge capacity of the diaphragm pump, meters the water amount by the flow meter, generates negative pressure at the nozzle by the jet pump, sucks the medicament at the outlet pipe of the mixed liquid of the diaphragm pump, not only reduces the load of the diaphragm pump, but also enables the medicament to be uniformly mixed with water and injected into the shaft, is beneficial to viscosity reduction and paraffin removal of the thick oil well and the wax-containing well, increases the crude oil yield of the oil well, and solves the problems that the conventional medicament-adding and viscosity-reducing equipment is inconvenient in water amount metering, difficult in medicament control and not ideal in thick oil exploitation.

2. According to the utility model, the medicine adding port and the upper cover are arranged, the medicine adding port can facilitate adding of the medicine, and the upper cover can protect the medicine adding port and prevent impurities from entering the medicine box.

3. By arranging the liquid level meter, the liquid level meter can conveniently check the residual situation of the liquid medicine and can conveniently supplement and add the medicament.

4. The utility model can facilitate the maintenance of each part in the shell by arranging the door and the hinge.

5. The utility model can conveniently measure the water consumption by arranging the flowmeter.

6. According to the utility model, the inlet flange and the outlet flange are arranged, the inlet flange can facilitate the introduction of high-pressure water, the thick oil is prevented from being adhered to the inside of a pipeline, and the outlet flange is connected with a shaft through a sleeve valve, so that the addition of a medicament can be facilitated.

7. The utility model can further improve the flow velocity entering the high-pressure water inlet pipe by arranging the accelerating pipe and the guide strip, and can facilitate the mixing of the medicament and the water.

Drawings

FIG. 1 is a schematic structural diagram provided in an embodiment of the present invention

FIG. 2 is a left side sectional view of the present invention

FIG. 3 is an enlarged view of the point A in FIG. 2 according to an embodiment of the present invention

In the figure: 1. a housing; 21. a kit; 22. a diaphragm pump; 23. a distribution box; 24. a medicament outlet tube; 25. a jet pump; 26. a high-pressure water inlet pipe; 27. a mixed liquid outlet pipe; 28. a medicament inlet tube; 31. a medicine adding port; 32. an upper cover; 4. a liquid level meter; 51. a door; 52. a hinge; 6. a flow meter; 71. an inlet flange; 72. an outlet flange; 81. a speed-up pipe; 82. and (7) conducting strips.

Detailed Description

For further understanding of the contents, features and effects of the present invention, the following detailed description is given by way of example with reference to the accompanying drawings.

The structure of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1-3, the viscosity reduction dosing machine for the heavy oil well in the oil field provided by the embodiment of the present invention includes a housing 1 and a viscosity reduction dosing device for improving the extraction efficiency of the heavy oil, where the viscosity reduction dosing device includes a chemical tank 21 disposed inside the housing 1, a diaphragm pump 22 connected to the chemical tank 21, a distribution box 23 for controlling the operation of the diaphragm pump 22, a chemical inlet pipe 28 connected to the bottom of the chemical tank 21, a chemical outlet pipe 24 connected to the output end of the diaphragm pump 22, a jet pump 25 connected to the chemical outlet pipe 24, a high-pressure water 26 connected to the input end of the jet pump 25, and a mixed liquid outlet pipe 27 connected to the output end of the jet pump 25, and the distribution box 23 is electrically connected to the diaphragm pump 22.

Referring to fig. 1, a door 51 is provided at one side of the housing 1, and a hinge 52 is provided between the door 51 and the housing 1.

Referring to fig. 2, a dosing port 31 is formed in the top of the medicine box 21, and an upper cover 32 is formed on the top of the dosing port 31.

Adopt above-mentioned scheme: through setting up with medicine mouth 31 and upper cover 32, add medicine mouth 31 and can make things convenient for the interpolation of medicament, upper cover 32 can protect adding medicine mouth 31, prevents that impurity from getting into inside the medicament case 21.

Referring to fig. 1, a liquid level meter 4 is provided on a side wall of the chemical tank 21.

Adopt above-mentioned scheme: through setting up level gauge 4, can conveniently look over the liquid medicine surplus condition, can conveniently supply the interpolation to the medicament.

Adopt above-mentioned scheme: by providing the door 51 and the hinge 52, the inspection of each part inside the housing 1 can be facilitated.

Referring to fig. 3, the high pressure water inlet pipe 26 is provided with a flow meter 6 inside.

Adopt above-mentioned scheme: through setting up flowmeter 6, can conveniently measure the water consumption.

Referring to fig. 2, the input end of the high pressure water inlet pipe 26 is provided with an inlet flange 71, and the output end of the mixed liquid outlet pipe 27 is provided with an outlet flange 72.

Adopt above-mentioned scheme: through setting up inlet flange 71 and outlet flange 72, inlet flange 71 can make things convenient for the leading-in of high pressure water, prevents that the viscous crude adhesion is inside the pipeline, and outlet flange 72 links to each other with the pit shaft through the casing valve, can make things convenient for the interpolation of medicament.

Referring to fig. 3, the input end of the high pressure water inlet pipe 26 is provided with a speed increasing pipe 81, the speed increasing pipe 81 is conical, and a plurality of spiral guide bars 82 are arranged inside the speed increasing pipe 81.

Adopt above-mentioned scheme: by providing the acceleration tube 81 and the guide bar 82, the flow velocity into the high-pressure water inlet tube 26 can be further increased, and the mixing of the chemical and water can be facilitated.

The installation and operation method of the utility model comprises the following steps:

firstly, connecting a high-pressure water pipe with a right-end inlet flange 71 of a high-pressure water inlet pipe 26 of a jet pump 25, and connecting a left-end outlet flange 72 of a mixed liquid outlet pipe 27 with a wellhead casing valve; secondly, filling the chemical box 21 with the chemical, electrically connecting the distribution box 23, and opening a sleeve valve; thirdly, the diaphragm pump 22 is started, the high pressure water is opened, the mixed liquid enters the shaft through the casing valve, and the dosage and the water quantity are adjusted according to the requirement. Negative pressure is generated at the nozzle through the jet pump 25, and the agent in the mixed liquid outlet pipe 27 of the diaphragm pump 22 is sucked, so that the load of the diaphragm pump 22 is reduced, the agent and water are uniformly mixed and injected into a shaft, viscosity reduction and paraffin removal of a heavy oil well and a wax-containing well are facilitated, and the purposes of increasing the crude oil yield of the oil well and improving the economic benefit of enterprises are achieved.

In summary, the following steps: this oil field viscous crude well viscosity reduction dosing machine, through setting up casing 1 and viscosity reduction charge device, can be applicable to oil field viscous crude well, wax-bearing well etc. need add the medicament to the pit shaft, diaphragm pump 22 and jet pump 25 integrated configuration, low cost, can make up the use, also can use alone, discharge capacity through adjustment diaphragm pump 22, reach the accurate control dosage, flowmeter 6 measurement water yield, produce the negative pressure at the nozzle through jet pump 25, mix liquid outlet pipe 27 medicament with diaphragm pump 22 and inhale, the load of diaphragm pump 22 has not only been reduced, and make medicament and water misce bene, pour into the pit shaft into, do benefit to the viscous crude well, wax-bearing well viscosity reduction, paraffin removal, increase oil well crude oil output, it is inconvenient to have solved current medicine viscosity reduction equipment water measurement, the medicament is not well controlled, the not ideal problem enough of viscous crude oil exploitation.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides an oil field viscous crude viscosity reduction dosing machine, includes casing (1) and is used for improving the viscosity reduction dosing unit of viscous crude extraction efficiency, its characterized in that: viscosity reduction charge device is including locating inside chemical tank (21) of casing (1), diaphragm pump (22) that link to each other with chemical tank (21), block terminal (23) for controlling diaphragm pump (22) work, drug import pipe (28) that link to each other with chemical tank (21) bottom, drug outlet pipe (24) that link to each other with diaphragm pump (22) output, jet pump (25) that link to each other with drug outlet pipe (24), high pressure water import pipe (26) that link to each other with jet pump (25) input and mixed liquid outlet pipe (27) that link to each other with jet pump (25) output, block terminal (23) are connected with diaphragm pump (22) electricity.

2. The viscosity-reducing and chemical-adding machine for the oil field thick oil well according to claim 1, characterized in that: a door (51) is arranged on one side of the shell (1), and a hinge (52) is arranged between the door (51) and the shell (1).

3. The viscosity-reducing and chemical-adding machine for the oil field thick oil well according to claim 1, characterized in that: the top of medicine case (21) is equipped with medicine mouth (31), the top of adding medicine mouth (31) is equipped with upper cover (32).

4. The viscosity-reducing and chemical-adding machine for the oil field thick oil well according to claim 1, characterized in that: and a liquid level meter (4) is arranged on the side wall of the medicament box (21).

5. The viscosity-reducing and chemical-adding machine for the oil field thick oil well according to claim 1, characterized in that: and a flowmeter (6) is arranged in the high-pressure water inlet pipe (26).

6. The viscosity-reducing and chemical-adding machine for the oil field thick oil well according to claim 1, characterized in that: the input end of the high-pressure water inlet pipe (26) is provided with an inlet flange (71), and the output end of the mixed liquid outlet pipe (27) is provided with an outlet flange (72).

7. The viscosity-reducing and chemical-adding machine for the oil field thick oil well according to claim 1, characterized in that: the input of high pressure water inlet pipe (26) is equipped with accelerating tube (81), accelerating tube (81) are the toper, accelerating tube (81)'s inside is equipped with a plurality of spiral helicine conducting strips (82).

Images