CN209959224U - Pressurized chemical feeding device for oil pumping well - Google Patents

Abstract

The utility model belongs to the technical field of the oil recovery of oil well, concretely relates to charge device is pressed in rod-pumped well area, connect including medicament bucket, medicament jar and oil well mouth, medicament bucket upper discharge gate passes through the feed liquor pipe and is connected with medicament jar feed inlet, medicament tank bottom discharge gate is through adding pencil and oil well mouth articulate, the gas vent that the oil well mouth connects is equipped with the blast pipe of discharging sleeve pipe gas, medicament jar one side is equipped with the nitrogen gas jar, be equipped with first forcing pipe on the nitrogen gas jar, first forcing pipe is connected with the air inlet on the medicament bucket, the other end and the medicament jar air inlet of blast pipe are connected, utilize nitrogen gas to be power, and the drive medicament jar realizes adding medicine that the oil well mouth connects, and nitrogen gas is stable gaseous, has improved the security of using.

Description

Pressurized chemical feeding device for oil pumping well

Technical Field

The utility model belongs to the technical field of the oil well oil recovery, concretely relates to charge device is pressed in rod-pumped well area.

Background

In the process of oil field exploitation, in order to make the oil well achieve the purposes of chemical oil increasing such as paraffin removal, corrosion inhibition, viscosity reduction, sterilization and the like, chemical agents are required to be added into the oil well. For example, the problems of abnormal production of an oil well, high wellhead back pressure and the like caused by wax precipitation and oil thickening, and corrosion and scaling of an underground pipe column and a gathering pipeline caused by high water content, hydrogen sulfide and the like of the oil well need to add various chemical agents into oil.

At present, most oil wells adopt a chemical agent which is added at regular time and quantity. When the oil well with casing gas is subjected to dosing operation, two methods are generally adopted on site: firstly, only can add medicine after releasing the intraductal sleeve pipe gas of cover earlier, so sleeve pipe gas just can not get the recovery and recycle, and sleeve pipe gas exhaust time is long, the polluted environment. And secondly, a gear pump is arranged externally, the chemical agents are conveyed into the well by utilizing high pressure generated by the gear pump, but electricity is needed to be connected, the electrical equipment is required to be explosion-proof, and as part of the chemical agents belong to flammable and explosive articles, the whole operation process has great potential safety hazards.

SUMMERY OF THE UTILITY MODEL

To the problem among the prior art, the utility model aims to provide an explosive device is pressed in rod-pumped well area.

In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:

the utility model provides a charge device is pressed in rod-pumped well area, includes that medicament bucket, medicament jar and oil well mouth connect, medicament bucket discharge gate passes through the feed liquor pipe and is connected with medicament jar feed inlet, medicament tank bottom discharge gate is through adding pencil and oil well mouth articulate, the gas vent that the oil well mouth connects is equipped with the blast pipe of discharging sleeve pipe gas, medicament jar one side is equipped with the nitrogen gas jar, be equipped with first forcing pipe on the nitrogen gas jar, first forcing pipe is connected with the air inlet on the medicament bucket, the other end and the medicament jar air inlet of blast pipe are connected.

Preferably, the nitrogen tank is further provided with a second pressurizing pipe, and the extending end of the second pressurizing pipe is communicated with the exhaust pipe.

Further, be located between second pressurized tube and the oil well mouth connects be equipped with the check valve on the blast pipe, be equipped with the blow-down pipe on the blast pipe that is located between second pressurized tube and the medicament jar, be equipped with the control valve on the blow-down pipe, be located and be equipped with the control valve on the blast pipe between blow-down pipe and the medicament jar, all be equipped with the control valve on first pressurized tube, second pressurized tube, feed liquor pipe and the dosing pipe.

Preferably, the bottom of the medicament tank is provided with a base, the bottom of the base is provided with uniformly distributed rollers, and the nitrogen tank is arranged on the base.

Preferably, the feed liquor pipe sets up in medicament jar middle part, is located the medicament jar feed liquor socle portion is equipped with rotatable coupling's connecting pipe, the connecting pipe bottom is equipped with a plurality of feed liquors that use the connecting pipe as the center and be central symmetric distribution and divides the pipe, the feed liquor divides to manage and is equipped with evenly distributed's feed liquor hole, different feed liquors divide manage on all use the connecting pipe to be central symmetric distribution as the center between the feed liquor hole, the feed liquor hole divides the contained angle scope between the vertical central line of pipe at 0 degree and 90 degrees with the feed liquor.

Furthermore, the bottom of the connecting pipe is provided with a fixedly connected stirring rod, and the stirring rod is provided with a plurality of stirring branch rods.

Preferably, the medicament tank is provided with a pressure gauge and a safety valve.

Compared with the prior art, the utility model discloses following technological effect has:

the utility model utilizes nitrogen as power to drive the agent tank to realize the dosing of the oil well mouth joint, the nitrogen is stable gas, the use safety is improved, the pipeline for discharging casing gas is connected with the agent tank, the casing gas can be effectively utilized, the pressure of the oil well casing gas is discharged into the agent tank by the self pressure of the oil well casing gas, when the pressure of the agent tank is balanced with the pressure in the oil well, the dosing can be realized by self gravity, the casing gas does not need to be completely discharged, the discharge time of the casing gas is greatly reduced, the integral dosing efficiency is improved, the nitrogen is connected with the agent tank by the second pressure pipe, the dosing time is shorter by utilizing the pressure of the nitrogen, the efficiency is higher, compared with the prior original method, the utility model discloses a three-in-process flow without casing gas discharge, medicament contact and external power supply is realized, the method is characterized in that under-pressure dosing is implemented in a well, the dosing time of a single well is successfully controlled within 15 minutes, a pure mechanical and non-electric-pressure dosing new method is found, a plurality of adverse effects caused by long-time casing gas release required by conventional dosing are solved, the positive effect is really played for prolonging the pump detection period of an oil well, and the assistance is formed for oil stabilization, cost reduction and efficiency increase of a management area.

Drawings

FIG. 1 is a schematic view of the overall connection of the dosing device provided in embodiment 1 of the present invention;

fig. 2 is a schematic view of the inside of a medicament container provided in embodiment 2 of the present invention;

fig. 3 is a schematic view of a connection structure of a liquid inlet branch pipe and a connection pipe provided in embodiment 2 of the present invention;

the reference numbers in the figures illustrate: 1. a base; 2. an oil wellhead joint; 3. a nitrogen tank; 4. a medicament barrel; 5. a roller; 6. a medicament canister; 61. stirring and separating rods; 62. a stirring rod; 63. a connecting pipe; 64. liquid inlet branch pipes; 65. a liquid inlet hole; 7. a medicine feeding pipe; 8. an exhaust pipe; 9. an emptying pipe; 10. a second pressurization pipe; 11. a liquid inlet pipe; 12. a first pressurization pipe; 39. a one-way valve; 40. a control valve; 41. and a pressure gauge.

Detailed Description

In order to make the technical means, creation characteristics, achievement purpose and efficacy of the utility model easy to understand and understand, the utility model is further clarified by combining the specific drawings.

It should be noted that, in the present invention, when an element is referred to as being "fixed" to another element, it may be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

Please refer to fig. 1, a chemical feeding device under pressure for an oil pumping well comprises a chemical barrel 4, a chemical tank 6 and an oil well mouth joint 2, wherein a material feeding hole of the chemical barrel 4 is connected with a material feeding hole of the chemical tank 6 through a material feeding pipe 11, a material discharging hole at the bottom of the chemical tank 6 is connected with the oil well mouth joint 2 through a chemical feeding pipe 7, an exhaust pipe 8 for discharging casing gas is arranged at an exhaust port of the oil well mouth joint 2, a nitrogen tank 3 is arranged at one side of the chemical tank 6, a first pressure pipe 12 is arranged on the nitrogen tank 3, the first pressure pipe 12 is connected with a gas inlet of the chemical barrel 4, and the other end of the exhaust pipe 8 is connected with the gas inlet of.

Further, a second pressurizing pipe 10 is further arranged on the nitrogen tank 3, and the extending end of the second pressurizing pipe 10 is communicated with the exhaust pipe 8.

Further, a check valve 39 is provided on the exhaust pipe 8 between the second pressurizing pipe 10 and the wellhead connector 2, and a control valve 40 is provided on the second pressurizing pipe 10.

Further, be equipped with blow-down pipe 9 on the blast pipe 8, be equipped with control valve 40 on the blow-down pipe 9, be equipped with control valve 40 on the blast pipe 8 that is located between 6 between blow-down pipe 9 and the medicament jar, all be equipped with control valve 40 on first forcing pipe 12, feed liquor pipe 11 and the dosing pipe 7.

Further, 6 bottoms of medicament jar are equipped with base 1, 1 bottoms of base are equipped with evenly distributed's gyro wheel 5, nitrogen gas jar 3 is installed on base 1.

Further, the medicine tank 6 is also provided with a pressure gauge 41 and a safety valve.

Example 2

Referring to fig. 2-3, the same points as those in embodiment 1 are not repeated, and the difference from embodiment 1 is that:

further, feed liquor pipe 11 sets up at 6 middle parts of medicament jar, is located medicament jar 6 feed liquor pipe 11 bottom is equipped with rotatable coupling's connecting pipe 63, connecting pipe 63 bottom is equipped with a plurality of feed liquors that use connecting pipe 63 as the center and be central symmetric distribution and divides pipe 64, the feed liquor divides the feed liquor hole 65 that is equipped with evenly distributed on the pipe 64, and different feed liquors divide on the pipe 64 all use connecting pipe 63 to be central symmetric distribution as the center between the feed liquor hole 65, the contained angle scope between the vertical central line of pipe 64 is divided at 0 degree and 90 degrees to feed liquor hole 65 and feed liquor.

There are many kinds of chemicals to be added to the oil well, and the wax remover does not need to be stirred, but the nutritional agent needs to be mixed and stirred. Therefore the utility model discloses set up central symmetric distribution's connecting pipe 63 and feed liquor in medicament jar 6 and be in charge of 64, the reverse driving force that the impact force of feed liquor hole 65 formed is passed through to the pressure of medicament when utilizing medicament jar 6 to add medicine when 3 drive medicaments of nitrogen gas jar enter to drive the feed liquor in medicament jar 6 and be in charge of 64 rotations, make the medicament contact more even that gets into through feed liquor branch pipe 64, improve the mixed effect of medicament.

Further, the bottom of the connecting pipe 63 is provided with a fixedly connected stirring rod 62, and the stirring rod 62 is provided with a plurality of stirring branch rods 61.

Set up puddler 62 in connecting pipe 63 bottom, utilize the rotation of connecting pipe 63, drive puddler 62 to the stirring of the certain degree of medicine in the medicament jar 6 to further efficiency that the improvement medicament mixes makes the medicament can the misce bene.

The foregoing shows and describes the general principles, essential features, and features of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the description of the above embodiments and the description is only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and these changes and modifications are all within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. The utility model provides a charge device is pressed in rod-pumped well area, includes that medicament bucket, medicament jar and oil well head connect, medicament bucket discharge gate passes through the feed liquor pipe to be connected with medicament jar feed inlet, medicament jar bottom discharge gate is through adding pencil and oil well head articulate, the gas vent that the oil well head connects is equipped with the blast pipe of discharging sleeve pipe gas, its characterized in that: the medicament jar one side is equipped with the nitrogen gas jar, be equipped with first forcing pipe on the nitrogen gas jar, first forcing pipe is connected with the air inlet on the medicament bucket, the other end and the medicament jar air inlet of blast pipe are connected.

2. The rod pumped well pressurized chemical adding device according to claim 1, characterized in that: still be equipped with the second pressurized tube on the nitrogen gas jar, the extension end and the blast pipe intercommunication of second pressurized tube.

3. The rod pumped well pressurized chemical adding device according to claim 1, characterized in that: and a check valve is arranged on the exhaust pipe between the second pressurizing pipe and the oil well mouth joint, and a control valve is arranged on the second pressurizing pipe.

4. The rod pumped well pressurized chemical adding device according to claim 1, characterized in that: the exhaust pipe is provided with a vent pipe, the vent pipe is provided with a control valve, the exhaust pipe between the vent pipe and the medicament tank is provided with a control valve, and the first pressure pipe, the liquid inlet pipe and the medicament feeding pipe are all provided with control valves.

5. The rod pumped well pressurized chemical adding device according to claim 1, characterized in that: the medicament tank bottom is equipped with the base, the base bottom is equipped with evenly distributed's gyro wheel, the nitrogen gas jar is installed on the base.

6. The rod pumped well pressurized chemical adding device according to claim 1, characterized in that: feed liquor pipe sets up in medicament jar middle part, is located the medicament jar feed liquor socle portion is equipped with rotatable coupling's connecting pipe, the connecting pipe bottom is equipped with a plurality of feed liquors that use the connecting pipe as the center and be central symmetric distribution and divides the pipe, the feed liquor divides to manage and is equipped with evenly distributed's feed liquor hole, and different feed liquors are divided to manage all use the connecting pipe to be central symmetric distribution as the center between the feed liquor hole.

7. The rod pumped well pressurized chemical adding device according to claim 1, characterized in that: and the medicament tank is provided with a pressure gauge and a safety valve.

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