CN210033390U - Oil well nitrogen gas drives charge device - Google Patents

Abstract

The utility model discloses an oil well nitrogen gas drives charge device, including medicament jar, displacement fluid reservoir, nitrogen gas jar, steady flow tube, high-pressure hose, connection nipple joint, nitrogen gas jar exit linkage nitrogen gas exit tube, nitrogen gas exit tube reconnection steady flow tube, the exit end of steady flow tube is connected medicament jar nitrogen gas simultaneously and is advanced the entrance point of pipe, is replaced fluid reservoir nitrogen gas and advances the entrance point of pipe, and medicament jar nitrogen gas advances the exit end of pipe and connects the top nitrogen gas entry of medicament jar, replaces the exit end that fluid reservoir nitrogen gas advances the pipe and connects the top nitrogen gas entry of displacement fluid reservoir, the exit end of inlet connection hybrid tube export of high-pressure hose. The utility model provides an oil well add the problem of medicine difficulty adding because of putting environmental pollution, bodily injury, the extravagant and oil well that the sleeve pipe gas caused at the medicine in-process.

Description

Oil well nitrogen gas drives charge device

Technical Field

The utility model belongs to the technical field of the oil well chemical feeding technique and specifically relates to an oil well nitrogen gas drives charge device.

Background

In the production process of an oil well, the produced crude oil contains substances such as paraffin, asphaltene and colloid, so that the oil well is influenced by factors such as temperature, pressure and water content in the production process, and more serious paraffin precipitation and emulsification phenomena can occur in a shaft. The load is increased, the yield is reduced, the oil flow resistance in the pipeline is increased, the back pressure is increased, and the normal production of the oil well is influenced. For the oil pumping well, the load borne by the oil pumping rod string is increased, the working load of a motor is increased, and the breaking probability of the oil pumping rod is increased; the oil pump inlet and outlet valves can not be opened or closed in time, so that the pump efficiency is reduced, and the pump inspection period of the oil well is shortened. In order to prevent or delay the phenomena of crude oil emulsification, wax precipitation and the like in a shaft, an oil extraction worker can periodically and quantitatively add a demulsifier and a wax removal and prevention agent into an oil well according to the emulsification and wax precipitation speed of each well to relieve the phenomena so as to ensure the normal production of the oil well. At present, the manual dosing of an oil well is realized by filling a medicament into an oil sleeve annular space through a right-angle elbow by means of atmospheric pressure, and the method has the premise that the dosing can be carried out only by reducing the sleeve pressure to zero after the sleeve inner sleeve is deflated. But the environment can be polluted and the personal health of operators can be injured in the casing gas discharging process. Even if casing gas is discharged from a well with higher casing pressure, the casing gas returning upwards in the process of manually adding the chemicals can also spray the chemicals in the chemical adding device, so that more chemicals are sprayed, the effect is not obvious, the consumption is large, the cost is easy to increase, the waste is caused, and the chemical adding becomes difficult; the sprayed medicine can also damage the human health and pollute the environment. Aiming at the existing problems, the nitrogen flooding chemical adding device for the oil well is needed to be developed for solving the problems.

The utility model aims at solving several problems in the manual medicine adding process of the oil well:

1. the unreasonable structure of the original tool needs to discharge the sleeve before adding the medicine, but the sleeve gas can cause pollution to the environment and harm to the human health in the discharge process.

2. The casing gas returning upwards to the oil well with higher casing pressure can spray out the medicament in the medicament adding device, so that the medicament is difficult to flow into the well, the medicament is difficult to add, and the medicament spraying effect is poor.

3. The dosage of the medicament is difficult to control, the dosage of the medicament is small, and the effect is poor; the dosage of the used medicament is large, and the medicament waste is easily caused.

4. The manual medicine feeding can not be realized for the oil well with the liquid level at the wellhead.

Application No.: 201320090271.1 relates to the technical field of oil extraction in oil fields, in particular to a vehicle-mounted chemical adding device for adding liquid chemicals into produced liquid in oil fields. The oil well chemical feeding vehicle comprises a chassis, wherein a generator and a control device are arranged on the chassis, a liquid feeding self-sucking pump and a chemical feeding solution tank are further arranged on the chassis, the liquid feeding self-sucking pump is communicated with the chemical feeding solution tank, a mixer is fixed at the top of the chemical feeding solution tank, and a magnetic suspension liquid level meter is arranged on the side wall of the chemical feeding solution tank. The utility model discloses a sled dress formula structure not only can satisfy the actual work needs in oil field, also can adapt to the needs that new well put into production rapidly, improve equipment utilization's requirement.

Application No.: 201320398448.4 discloses a vehicle-mounted intelligent chemical adding device for skid-mounted oil wells, which is designed for solving the chemical adding problem in oil well production. The integrated intelligent dosing tank of the dosing device is loaded on a truck, two ways of an electromagnetic three-way valve in the dosing tank are respectively connected with a medicine storage tank and a water storage tank which are internally provided with a liquid level meter, and the other way of the electromagnetic three-way valve is connected with an oil well casing quick connector through an explosion-proof hydraulic pump; the bottom of the medicine storage box is connected with a blow-off pipe of the medicine storage box, and an inlet at the top of the medicine storage box is provided with a filter screen and communicated with a medicine suction pipe of the medicine storage box connected with a self-sucking pump; the bottom of the water storage tank is connected with a blow-off pipe of the water storage tank, and the top of the water storage tank is communicated with a water replenishing pipe of the water storage tank. The intelligent control is adopted in the chemical feeding device, the chemical feeding amount can be accurately measured, the chemical feeding workload is reduced, the chemical is ensured to be injected into the bottom of the well, and the potential safety hazard in the chemical feeding process can be reduced. The medicine adding device is fast in connection, time-saving, labor-saving, compact in structure, small in size and convenient to move randomly.

Application No.: 201320494574.X relates to the technical field of oil extraction engineering, and particularly belongs to a vehicle-mounted mobile dosing device for an oil-producing well. The problems that sudden phenomena such as large current fluctuation, asynchronous down stroke of a sucker rod or pump blockage and the like of a mechanical production well are suddenly caused cannot be timely processed are mainly solved. The filter (8) is connected with a plunger pump (10) through a ball valve (9), the plunger pump (10), a generator (19) and an electrode point pressure gauge (13) are connected with an integrated controller (14) through cables, a quick connector (17) is connected with a medicine conveying pipeline and a high-pressure medicine conveying hose (18), and the other side of the high-pressure medicine conveying hose (18) penetrates through the heat insulation box (1) and is connected with a wellhead casing of an oil well. The device can add medicine for the mechanical production well which needs to be treated urgently such as large current fluctuation, asynchronous down stroke of the sucker rod or pump blockage at any time, and has the advantages of timely medicine adding, large medicine adding amount, high medicine adding speed, low measure cost and the like.

Technical scheme and the technical problem that will solve and the beneficial effect who produces of above disclosure technique all with the utility model discloses inequality, to the utility model discloses more technical characteristics and the technical problem and the beneficial effect that will solve all do not have the technological inspiration in the above technical document that discloses.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oil well nitrogen gas drives charge device is the medicine instrument that adds that environmental protection, transportation are convenient, safety, measurement are accurate, stops that the outer environmental pollution that causes of arranging of sleeve pipe gas and harm the health and guarantee to add the medicine quality, solves the oil well and adds the problem of medicine difficulty at the medicine in-process because of putting environmental pollution, bodily injury, the extravagant and oil well that sleeve pipe gas caused.

In order to achieve the purpose, the utility model adopts the following technical scheme that the oil well nitrogen driving and dosing device comprises a medicament tank and a displacement liquid tank, wherein the top of the medicament tank is provided with a medicament adding valve, the bottom of the side wall of the medicament tank is provided with a medicament outlet, the medicament outlet is connected with a medicament outlet pipe, the top of the displacement liquid tank is provided with a displacement liquid adding valve, the bottom of the side wall of the displacement liquid tank is provided with a displacement liquid outlet, the displacement liquid outlet is connected with the displacement liquid outlet pipe, the nitrogen tank further comprises a nitrogen tank, a flow stabilizing pipe, a high-pressure hose and a connecting nipple, the nitrogen tank outlet is connected with the nitrogen outlet pipe, the nitrogen outlet pipe is further connected with a flow stabilizing pipe, the outlet end of the flow stabilizing pipe is simultaneously connected with the inlet end of a medicament tank nitrogen inlet pipe and the inlet end of the displacement liquid tank nitrogen inlet pipe, the outlet end of the medicament tank nitrogen inlet pipe is connected, the inlet end of the high-pressure hose is connected with the outlet of the mixing pipe, the inlet of the mixing pipe is simultaneously connected with the outlet end of the medicament outlet pipe and the outlet end of the displacement liquid outlet pipe, the outlet end of the high-pressure hose is connected with the check valve, and the outlet of the check valve is connected with the connecting nipple.

And the medicament tank, the displacement liquid tank and the nitrogen tank are mounted on the movable vehicle body in a skid-mounted manner.

Spare medicament barrels and displacement liquid barrels are mounted on the movable trolley body in a skid-mounted mode, and the displacement liquid barrels are clear water barrels.

And the medicament tank and the displacement liquid tank are both provided with a pressure gauge and a safety valve.

And the medicament tank and the displacement liquid tank are both provided with a liquid level meter and an emptying valve.

And a nitrogen tank control valve is arranged on the medicament outlet pipe.

The device is characterized in that a medicament tank control valve is arranged on the medicament tank nitrogen inlet pipe, a displacement liquid tank control valve is arranged on the displacement liquid tank nitrogen inlet pipe, a medicament discharge valve is arranged on the medicament outlet pipe, and a displacement liquid discharge valve is arranged on the displacement liquid outlet pipe.

The high-pressure hose is characterized in that high-pressure hose connectors are arranged at the inlet and the outlet of the high-pressure hose, namely, the inlet of the high-pressure hose is connected with the mixing pipe through the high-pressure hose connector, and the outlet of the high-pressure hose is connected with the check valve through the high-pressure hose connector.

The mobile vehicle body is an electric vehicle.

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

when the chemicals are added to an original oil well, casing gas is firstly discharged before the chemicals are added, but the environment is polluted and the human health is injured in the casing gas discharge process. The elbow is connected to the casing valve and the agent is poured into the well. If the sleeve gas returns upwards, the added medicament is sprayed out to influence the dosing effect, the human health is damaged, and the environment is polluted; the dosage of the medicament is not provided with a special metering device, and the dosage can not be ensured. The utility model discloses when adding the medicine, need not to put sleeve pipe gas, the medicament is driven by the nitrogen gas and is passed through in high-pressure hose, the airtight injection well of single current valve, does not have the phenomenon of the upward blowout medicament of sleeve pipe gas. The problems of environmental pollution, personal health damage, medicament loss and the like caused by casing gas discharge and medicament splashing are solved. The medicament tank is provided with a liquid level meter, so that the accurate dosing quantity is ensured.

The utility model discloses stopped and added the medicine in-process to the air discharge casing gas, prevented the pollution to the environment and to operating personnel's bodily injury.

The device can realize airtight medicine adding, can prevent the pollution environment that the medicament blowout caused, bodily injury, solve the problem of adding the medicine difficulty.

The electric vehicle is used as a carrying carrier, so that the electric vehicle is convenient to use and high in maneuverability.

The device is provided with a standby medicament and a clear water bucket, and can realize continuous dosing work of a plurality of oil wells.

Ensure the accurate dosing quantity, avoid the waste of the medicament and save the cost.

Is suitable for manually adding medicines into various oil wells.

Drawings

FIG. 1 is a top view of the nitrogen flooding chemical adding device for the oil well of the utility model;

fig. 2 is a front view of the structure of the oil well nitrogen gas flooding chemical adding device (the vehicle head is not shown).

The labels in the figure are: 1. a nitrogen tank; 2. a nitrogen tank control valve; 3. a flow stabilizing pipe; 4. a medicament tank control valve 21, a displacement fluid tank control valve; 5. a liquid level meter; 6. a medicament canister; 7. displacing the liquid tank; 8. a pressure gauge; 9. a charging valve; 10. an atmospheric valve; 11. a drug discharge valve; 12. a displacement liquid discharge valve; 13. a high pressure hose; 14. a check valve; 15. connecting short sections; 16. a medicament barrel; 17. a clear water barrel; 18. an electric vehicle; 19. a safety valve; 20. a high-pressure hose connector.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 2, the present invention provides a technical solution:

the utility model provides an oil well nitrogen gas drives charge device, includes medicament jar 6, displacement fluid reservoir 7, the medicament jar top sets up the medicament and adds the valve, and medicament jar lateral wall bottom sets up the medicament export, and medicament exit linkage medicament exit tube, displacement fluid reservoir top sets up displacement fluid and adds the valve, and displacement fluid reservoir lateral wall bottom sets up displacement fluid export, and displacement fluid exit linkage displacement fluid exit tube still includes nitrogen jar 1, steady flow tube 3, high-pressure hose 13, connection nipple 15, nitrogen jar 1 exit linkage nitrogen gas exit tube, nitrogen gas exit tube reconnection steady flow tube 3, and the exit end of steady flow tube connects the entrance point that medicament jar nitrogen entered the pipe simultaneously, displaces the entrance point that fluid reservoir nitrogen entered the pipe, and the exit end that medicament jar nitrogen entered the pipe connects the top nitrogen gas entry of medicament jar, and the exit end that displaces the nitrogen gas entered the pipe connects the top nitrogen gas entry of displacement fluid reservoir, the exit connection hybrid tube of entrance point of high-pressure hose 13 exports, the inlet of the mixing pipe is simultaneously connected with the outlet end of the medicament outlet pipe and the outlet end of the displacement liquid outlet pipe, the soft outlet end of the high-pressure pipe is connected with the check valve 14, and the outlet of the check valve is connected with the connecting nipple 15.

And the medicament tank 6, the displacement liquid tank 7 and the nitrogen tank 1 are mounted on the movable vehicle body in a skid-mounted manner.

Spare medicament barrels 16 and replacement liquid barrels are also mounted on the movable trolley body in a skid-mounted mode, and the replacement liquid barrels are clear water barrels 17.

And the medicament tank and the displacement liquid tank are both provided with a pressure gauge 8 and a safety valve 19.

The medicament tank and the displacement liquid tank are both provided with a liquid level meter 5 and an emptying valve 10.

And a nitrogen tank control valve 2 is arranged on the medicament outlet pipe.

The nitrogen inlet pipe of the medicament tank is provided with a medicament tank control valve 4, the nitrogen inlet pipe of the displacement liquid tank is provided with a displacement liquid tank control valve 21, the medicament outlet pipe is provided with a medicament discharge valve 11, and the displacement liquid outlet pipe is provided with a displacement liquid discharge valve 12.

The high-pressure hose is characterized in that the inlet and the outlet of the high-pressure hose are both provided with high-pressure hose connectors 20, namely, the inlet of the high-pressure hose is connected with a mixing pipe through the high-pressure hose connector, and the outlet of the high-pressure hose is connected with a check valve through the high-pressure hose connector.

The mobile vehicle body is an electric vehicle 18.

The prescribed amount of the medicament is poured into the medicament tank 6 for accurate metering, water is added for dilution, and clean water is poured into the displacement liquid tank 7. The high-pressure hose 13 is connected with the sleeve valve through a connecting nipple 15; opening the sleeve valve, the medicament discharge valve 11 and the medicament tank control valve 4; opening a nitrogen tank control valve 2, forming stable airflow by nitrogen in the nitrogen tank 1 through a flow stabilizing pipe 3 to enter a medicament tank 6, replacing the medicament out of the medicament tank 6 when the pressure in the medicament tank is greater than the pressure of a sleeve, injecting the medicament into a well through a high-pressure hose 13 and a check valve 14, and closing the nitrogen tank control valve 2, a medicament discharge valve 11 and a medicament tank control valve 4; opening the displacement liquid discharge valve 12 and the displacement liquid tank control valve 21; opening a nitrogen tank control valve 2, forming stable airflow by nitrogen in the nitrogen tank through a flow stabilizing pipe 3, entering a displacement liquid tank, and when the pressure in the displacement liquid tank is greater than the pressure of a sleeve, displacing clear water out, and injecting the clear water into a well through a high-pressure hose 13 and a check valve 14 to ensure the dosing effect; and closing a sleeve valve, opening the medicament tank emptying valve 5 and the displacement liquid tank emptying valve 5, connecting the barrels for emptying, and removing the connecting pipeline to finish dosing. The chemicals in the chemical barrel 16 and the clear water barrel 17 and the clear water are respectively added into the chemical tank 6 and the displacement liquid tank 7 through the dosing adding valve and the clear water adding valve 9, and the dosing of the second well can be realized as described above.

In the description of the present invention, it should be understood that the orientation indication or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description of the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides an oil well nitrogen gas drives charge device, includes medicament jar, displacement fluid reservoir, the medicament tank top sets up the medicament and adds the valve, and medicament jar lateral wall bottom sets up the medicament export, and medicament exit linkage medicament exit tube, displacement fluid reservoir top sets up displacement liquid and adds the valve, and displacement fluid reservoir lateral wall bottom sets up displacement liquid export, and displacement liquid exit linkage displacement liquid exit tube, its characterized in that still includes nitrogen jar, steady flow tube, high-pressure hose, connection nipple joint, nitrogen jar exit linkage nitrogen gas exit tube, nitrogen gas exit tube reconnection steady flow tube, and the exit end of steady flow tube is connected the entrance point that medicament jar nitrogen gas entered the pipe simultaneously, is replaced the entrance point that the nitrogen fluid reservoir nitrogen gas entered the pipe, and the exit end that medicament jar nitrogen gas entered the pipe is connected the top nitrogen gas entry of medicament jar, and the exit end that the displacement fluid reservoir nitrogen gas entered the pipe is connected the top nitrogen gas entry that displaces the fluid reservoir, the exit, the inlet of the mixing pipe is simultaneously connected with the outlet end of the medicament outlet pipe and the outlet end of the displacement liquid outlet pipe, the outlet end of the high-pressure hose is connected with the check valve, and the outlet of the check valve is connected with the connecting short joint.

2. The oil well nitrogen gas driving and dosing device according to claim 1, wherein the agent tank, the displacement liquid tank and the nitrogen gas tank are skid-mounted on a movable vehicle body.

3. The oil well nitrogen gas driving and dosing device according to claim 2, wherein the mobile vehicle body is also skid-mounted with a spare chemical agent barrel and a replacement liquid barrel, and the replacement liquid barrel is a clear water barrel.

4. The oil well nitrogen gas flooding chemical dosing device of claim 1, 2 or 3, wherein the chemical tank and the displacement liquid tank are respectively provided with a pressure gauge and a safety valve.

5. An oil well nitrogen gas drive dosing device as claimed in claim 1, 2 or 3, wherein the agent tank and the displacement liquid tank are both provided with a liquid level meter and a vent valve.

6. An oil well nitrogen gas drive chemical adding device according to claim 1, 2 or 3, wherein a nitrogen gas tank control valve is arranged on the chemical outlet pipe.

7. The oil well nitrogen gas drive chemical adding device according to claim 1, 2 or 3, wherein a chemical tank control valve is arranged on the chemical tank nitrogen gas inlet pipe, a displacement liquid tank control valve is arranged on the displacement liquid tank nitrogen gas inlet pipe, a chemical discharging valve is arranged on the chemical outlet pipe, and a displacement liquid discharging valve is arranged on the displacement liquid outlet pipe.

8. The oil well nitrogen gas flooding chemical adding device according to claim 1, 2 or 3, characterized in that the inlet and outlet of the high pressure hose are both provided with high pressure hose connectors, i.e. the inlet of the high pressure hose is connected with the mixing pipe through the high pressure hose connector, and the outlet of the high pressure hose is connected with the check valve through the high pressure hose connector.

9. The oil well nitrogen gas flooding chemical dosing device of claim 2, wherein the mobile vehicle body is an electric vehicle.

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