CN219034678U

CN219034678U - Blowout prevention and leakage prevention oil drainage device for well head in well workover operation

Info

Publication number: CN219034678U
Application number: CN202320290032.4U
Authority: CN
Inventors: 霍光春; 贺明星; 魏有明; 王向军; 吴鹏鹏; 毕勇; 王磊; 赵根根
Original assignee: Xingzichuan Production Plant Yanchang Oilfield Co ltd
Current assignee: Xingzichuan Production Plant Yanchang Oilfield Co ltd
Priority date: 2023-02-23
Filing date: 2023-02-23
Publication date: 2023-05-16
Anticipated expiration: 2033-02-23

Abstract

The utility model provides a blowout prevention and leakage prevention oil drainage device for a well head in well workover operation, which comprises an oil receiver and a connecting pipe, wherein the bottom end of the connecting pipe is fixedly connected with an oil well, the oil receiver is fixed on the connecting pipe, the top end of the connecting pipe is connected with an oil pipe, the oil receiver can receive oil leaked from the top end of the connecting pipe and the oil pipe when the oil pipe is pulled out, and an oil return structure is arranged on the connecting pipe so that the oil in the oil receiver can flow back to the oil well. According to the utility model, the connecting pipe is used as a connecting piece between the oil well and the oil pipe, and the oil receiver is arranged on the connecting pipe, so that when the oil pipe is pulled out, the oil flowing out of the top end of the connecting pipe and the oil pipe can be stored in the oil receiver, and then flows back to the oil well through the oil return structure on the connecting pipe, so that on one hand, pollution to the environment and harm to the health of staff are prevented, and on the other hand, the oil resources and the labor and material costs of an oil extraction factory are saved.

Description

Blowout prevention and leakage prevention oil drainage device for well head in well workover operation

Technical Field

The utility model belongs to the technical field of oil well equipment, and particularly relates to a wellhead blowout prevention and leakage prevention oil drainage device for well workover.

Background

When the oil pipe is pulled out in the well repairing process, the oil water in the oil well pipe column can be sprayed outwards, the oil water can flow out downwards in the oil pipe, a dirty oil pit is dug beside an oil well mouth in the existing treatment mode, the sprayed and leaked oil water is stored in the dirty oil pit and then treated, but the mode brings huge pressure to environment-friendly work on one hand, causes oil resource waste, is harmful to the health of operators, and meanwhile, a great amount of funds are consumed by an oil extraction factory to treat the dirty oil.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide a blowout prevention and leakage prevention oil drainage device for a well head of well workover operation, wherein a connecting pipe is used as a connecting piece between an oil well and an oil pipe, and an oil receiver is arranged on the connecting pipe, so that when the oil pipe is pulled out, the oil flowing out of the top end of the connecting pipe and the oil pipe can be stored in the oil receiver, and then flows back to the oil well through an oil return structure on the connecting pipe, thereby preventing environmental pollution and harm to the health of staff on one hand, and saving the oil resources and the labor and material costs of oil extraction plants on the other hand.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a workover well head blowout prevention leak protection oil drainage device, includes and receives oily ware and connecting pipe, the bottom of connecting pipe is used for with oil well fixed connection, it fixes on the connecting pipe to receive oily ware, the top of connecting pipe is used for being connected with oil pipe, receive oily ware can accept when extracting oil pipe connecting pipe top and the oil that spouts out in the oil pipe, be provided with the oil return structure on the connecting pipe so that receive oily ware in oily can flow back to the oil well.

Preferably, the connecting pipe comprises a short section, an upper flange and a lower flange, wherein the upper flange and the lower flange are respectively fixedly connected to two ends of the short section, the lower flange can be connected with an oil well, and the upper flange can be connected with an oil pipe.

Preferably, the oil receiver comprises a horn and a straight cylinder, wherein the smaller opening of the horn is fixedly connected to the short section, and the straight cylinder is fixedly connected to the larger opening of the horn.

Preferably, a handle is arranged on the outer surface of the straight cylinder.

Preferably, the inside wall of the straight cylinder is fixedly connected with a filter cylinder, and a plurality of filter holes are formed in the bottom surface of the filter cylinder.

Preferably, the oil return structure comprises a plurality of oil return holes formed in the short section, and the height Gao Yuna of the oil return holes is equal to the height of the bottommost end of the oil device.

Compared with the prior art, the utility model has the following advantages:

according to the utility model, the connecting pipe is used as a connecting piece between the oil well and the oil pipe, and the oil receiver is arranged on the connecting pipe, so that when the oil pipe is pulled out, the oil flowing out of the top end of the connecting pipe and the oil pipe can be stored in the oil receiver, and then flows back to the oil well through the oil return structure on the connecting pipe, so that on one hand, pollution to the environment and harm to the health of staff are prevented, and on the other hand, the oil resources and the labor and material costs of an oil extraction factory are saved.

The utility model is described in further detail below with reference to the drawings and examples.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Reference numerals illustrate:

1-an oil receiver; 2-connecting pipes; 3-pup joint; 4-an upper flange; 5-a lower flange; 6-a horn; 7-a straight cylinder; 8-a handle; 9-a filter cartridge; 10-filtering holes; 11-oil return holes; 12-well.

Detailed Description

As shown in fig. 1, the utility model provides a wellhead blowout prevention leakage prevention oil drainage device for well workover operation, which comprises an oil receiver 1 and a connecting pipe 2, wherein the bottom end of the connecting pipe 2 is fixedly connected with an oil well 12, the oil receiver 1 is fixed on the connecting pipe 2, the top end of the connecting pipe 2 is connected with an oil pipe, the oil receiver 1 can receive oil leaked from the top end of the connecting pipe 2 and the oil pipe when the oil pipe is pulled out, and an oil return structure is arranged on the connecting pipe 2 so that the oil in the oil receiver 1 can flow back into the oil well 12.

Specifically, in the utility model, the connecting pipe 2 comprises a nipple 3, an upper flange 4 and a lower flange 5, wherein the upper flange 4 and the lower flange 5 are respectively fixedly connected to two ends of the nipple 3, the lower flange 5 can be connected with an oil well 12, the upper flange 4 can be connected with an oil pipe, and preferably, the lower flange 5 is connected with the oil well 12 by adopting bolts, so that the problem of oil leakage and oil leakage at the connection part of the upper flange 4 and the lower flange 5 is avoided.

Specifically, in the utility model, the oil container 1 comprises the horn cylinder 6 and the straight cylinder 7, the smaller opening of the horn cylinder 6 is fixedly connected to the short section 3, the straight cylinder 7 is fixedly connected to the larger opening of the horn cylinder 6, and the handle 8 is arranged on the outer surface of the straight cylinder 7, so that a worker can conveniently move the oil container 1 through the handle 8.

When the oil pipe is pulled out, the sprayed oil water can be caught by the straight cylinder 7 and then flows to the bottom end of the horn cylinder 6 along the straight cylinder 7 and the horn cylinder 6.

In some examples, the inner side wall of the straight cylinder 7 is fixedly connected with a filter cylinder 9, and a plurality of filter holes 10 are formed in the bottom surface of the filter cylinder 9. After the oil pipe is pulled out, the oil-water in the oil pipe can flow downwards along the oil pipe, and because the oil pipe contains impurities, the impurities are easy to leave along with the oil-water, and the impurities can either enter an oil well or block an oil return structure, so that the filter cartridge 9 is arranged in the straight barrel 7, the oil-water can be filtered, and the impurities in the oil-water can be blocked.

Specifically, in the utility model, the oil return structure comprises a plurality of oil return holes 11 formed on the short section 3, and the height Gao Yuna of the oil return holes 11 is the height of the bottommost end of the oil device 1. The oil and water accumulated in the oil receiver 1 can enter the short joint 3 again from the oil return hole 11, and then flows back into the oil well 12 along the short joint 3.

In summary, the overall usage flow of the utility model is as follows: firstly, when the well repair operation is to be carried out, the horn 6 is sleeved on the short joint 3 and welded and fixed, the smaller opening end of the horn 6 needs to be ensured to be lower than the oil return hole 11 on the short joint 3 during welding, then the straight barrel 7 is welded with the larger opening end of the horn 6, then the lower flange 5 is connected with the oil well 12 through bolts, then an oil pipe can be connected to the upper flange 4 for subsequent operation, when the oil pipe is pulled out, the oil water sprayed out of the upper flange 4 can automatically flow down into the horn 6 and flow back into the oil well 12 through the oil return hole 11, and after the oil pipe is pulled out, workers are required to move the oil pipe, so that the oil pipe is positioned above the filter cartridge 9, and after the oil water in the oil pipe flows back into the filter cartridge 9 for filtering, the oil water flows down into the horn 6 from the filter hole 10 for backflow.

The utility model has simple structure and low manufacturing cost, can take materials locally when manufacturing, adopts waste materials, for example, the oil receiver 1 can be formed by welding waste steel plates with the thickness of 2mm, two waste flanges and one waste sleeve in a factory can form the connecting pipe 2 by welding, and the filter cartridge 9 can adopt a fan protection net of a waste motor, so that the total material cost and the welding cost are only about 700 yuan, and the whole material cost and the welding cost are very low, but the direct and indirect economic benefits brought by adopting the device are very considerable:

the method has the direct economic benefit that the conventional method for treating the dirty oil by adopting the dirty oil pit can be used for pumping 2000 times per year according to the oil recovery plant, wherein oil leakage and oil leakage occur at 1000 times, 200 kg of oil is generated in each oil well, 200 tons of crude oil can be lost per year, 39.6 ten thousand yuan can be lost in total according to the original 1980 yuan per ton, and the partial loss can be avoided after the device is adopted.

The indirect economic benefit is that in the aspect of environmental pollution, the labor intensity for cleaning the dirty oil pit is high, the operation of each well needs about 200 yuan, about 20 ten thousand yuan is needed for 1000 wells, 760 yuan is needed for treating the dirty oil mud of each side, about 114 ten thousand yuan is needed for producing the dirty oil of about 1.5 sides per year, and the cost can be saved after the device is adopted.

The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the present utility model. Any simple modification, variation and equivalent variation of the above embodiments according to the technical substance of the utility model still fall within the scope of the technical solution of the utility model.

Claims

1. The utility model provides a workover well head blowout prevention leak protection oil drainage device which characterized in that: the oil well oil collector comprises an oil collector and a connecting pipe, wherein the bottom end of the connecting pipe is fixedly connected with an oil well, the oil collector is fixed on the connecting pipe, the top end of the connecting pipe is connected with an oil pipe, the oil collector can receive oil which is sprayed out of the top end of the connecting pipe and the oil pipe when the oil pipe is pulled out, and an oil return structure is arranged on the connecting pipe so that the oil in the oil collector can flow back to the oil well.

2. The blowout prevention, leakage prevention and oil drainage device for a well head of a well workover operation according to claim 1, wherein: the connecting pipe comprises a short section, an upper flange and a lower flange, wherein the upper flange and the lower flange are respectively fixedly connected to two ends of the short section, the lower flange can be connected with an oil well, and the upper flange can be connected with an oil pipe.

3. The blowout prevention, leakage prevention and oil drainage device for a well head of a well workover operation according to claim 1, wherein: the oil receiver comprises a horn barrel and a straight barrel, wherein the smaller opening of the horn barrel is fixedly connected to the short section, and the straight barrel is fixedly connected to the larger opening of the horn barrel.

4. A blowout prevention, leakage prevention and drainage device for a wellhead of a workover operation according to claim 3, wherein: the outer surface of the straight cylinder is provided with a handle.

5. A blowout prevention, leakage prevention and drainage device for a wellhead of a workover operation according to claim 3, wherein: the filter cartridge is fixedly connected to the inner side wall of the straight cylinder, and a plurality of filter holes are formed in the bottom surface of the filter cartridge.

6. The blowout prevention, leakage prevention and oil drainage device for a well head of a well workover operation according to claim 2, wherein: the oil return structure comprises a plurality of oil return holes formed in the short joint, and the height Gao Yuna of the oil return holes is equal to the height of the bottommost end of the oil device.