Oil extraction device convenient for waste liquid recovery

Abstract

The utility model discloses an oil extraction device facilitating waste liquid recovery. The oil extraction device comprises a Christmas tree and a waste liquid recovery assembly connected to a casing pipe valve of the Christmas tree. The waste liquid recovery assembly comprises an oil guide pipe connected with the sleeve valve, a cylinder body fixedly arranged at the end, away from the sleeve valve, of the oil guide pipe and communicated with the oil guide pipe, a cylinder body gland arranged on the cylinder body in a buckled mode, a lead screw base fixedly arranged on the cylinder body and a lead screw connected to the lead screw base in a threaded mode. The waste liquid recovery device can be used for conveniently and directly recovering waste liquid beside a well, is suitable for being used during oil exploitation, and is used for recovering the waste liquid in the oil exploitation process.

Description

Technical Field

[0001] The utility model belongs to the field of petroleum engineering equipment and relates to an oil production device, in particular to an oil production device capable of recovering waste liquid beside a well. Background Art

[0002] During the oil production process, waste liquid will be generated whether it is leakage from the wellhead blowout preventer box or sampling work. Since the waste liquid contains a large amount of oil, suspended matter, dissolved salts, heavy metals and other harmful substances, if the waste liquid is discharged directly into rivers, lakes or oceans without treatment, it will seriously pollute the water source, affect water quality and destroy the aquatic ecosystem.

[0003] At present, the waste liquid generated during the oil production process is usually collected by employees using waste liquid barrels and transported to designated locations for centralized treatment. However, in the actual production process, due to the large number of oil wells and their scattered locations, employees need to carry waste liquid barrels containing waste liquid for turnover, which is not only time-consuming and labor-intensive, but also due to the long turnover distance, the waste liquid in the waste liquid barrels is also at risk of spillage. If the waste liquid is spilled, it will not only affect the environment, but also have an adverse effect on the health of employees. Utility Model Content

[0004] In order to solve the above deficiencies in the prior art, the present invention aims to provide an oil production device that facilitates waste liquid recovery, so as to achieve the purpose of being able to recover waste liquid next to the well.

[0005] In order to achieve the above purpose, the technical solutions adopted by the present utility model are as follows:

[0006] An oil production device for convenient waste liquid recovery includes an oil production tree and a waste liquid recovery component connected to a casing valve of the oil production tree;

[0007] The waste liquid recovery component includes an oil guide pipe connected to the sleeve valve, a cylinder body fixed at one end of the oil guide pipe away from the sleeve valve and connected to the oil guide pipe, a cylinder body pressure cover buckled on the cylinder body, a screw seat fixed on the cylinder body and a screw threadedly connected to the screw seat for tightening the cylinder body pressure cover.

[0008] As a limitation of the present invention, the oil guide pipe is an L-shaped right-angle elbow pipe.

[0009] As a further limitation of the present invention, the oil guide pipe and the sleeve valve are fixedly connected by a clamp.

[0010] As another limitation of the present invention, the cylinder gland includes a top cover, a handle fixed to an end of the top cover away from the cylinder body, and a sealing portion fixed to an end of the top cover close to the cylinder body.

[0011] As a further limitation of the present invention, a sealing ring is embedded in the sealing portion to increase the sealing performance of the cylinder gland.

[0012] As a further limitation of the present invention, a handle for rotating the screw is fixedly provided at one end of the screw away from the cylinder body.

[0013] Due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0014] (1) The utility model sets a waste liquid recovery component on the Christmas tree. When waste liquid is generated, it only needs to be poured into the waste liquid recovery component. The waste liquid can enter the casing through the casing valve on the Christmas tree to complete the recovery. This not only prevents environmental pollution, but also improves the efficiency of waste liquid recovery, reduces the cost of waste liquid recovery, and ensures the personal safety of operating employees.

[0015] (2) The oil guide pipe in the present invention is configured as an L-shaped right-angle bend. When the waste liquid in the waste liquid recovery device flows into the casing, the bend of the oil guide pipe will buffer the downstream waste liquid, preventing the waste liquid from entering the casing too quickly and affecting the normal flow of oil in the casing.

[0016] (3) In the utility model, the oil guide pipe and the casing valve are fixedly connected by a clamp. The waste liquid recovery device can be removed by the clamp, which facilitates cleaning and maintenance, and helps to keep the equipment in good operating condition and extend its service life.

[0017] (4) In the utility model, a sealing ring is provided on the cylinder gland, which improves the sealing performance of the waste liquid recovery device, effectively prevents the volatilization of residual waste liquid in the waste liquid recovery device, and reduces environmental pollution.

[0018] In summary, the utility model can quickly and conveniently recycle waste liquid at the wellside, is suitable for oil production work, and is used for recycling waste liquid during the oil production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0021] Figure 2 This is a schematic structural diagram of a waste liquid recovery assembly in an embodiment of the present utility model;

[0022] Figure 3 This is a structural diagram of the cylinder gland in an embodiment of the present utility model;

[0023] In the figure: 1. Christmas tree; 2. Waste liquid recovery assembly; 3. Clamp;

[0024] 21. Oil guide pipe; 22. Cylinder body; 23. Cylinder body gland; 24. Screw seat; 25. Screw; 26. Handle;

[0025] 231. Top cover; 232. Handle; 233. Sealing part; 234. Sealing ring. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and understand the present invention and are not intended to limit the present invention.

[0027] This embodiment discloses an oil production device for facilitating waste liquid recovery, comprising a Christmas tree 1 and a waste liquid recovery assembly 2 connected to a casing valve; wherein the Christmas tree 1 adopts an existing Christmas tree.

[0028] The waste liquid recovery assembly 2 includes an oil guide pipe 21 connected to the sleeve valve through a clamp 3, a cylinder body 22 fixed to the end of the oil guide pipe 21 away from the sleeve valve, a cylinder body pressure cover 23 buckled on the cylinder body 22, a screw seat 24 fixed on the seat of the cylinder body 22, a screw 25 threadedly connected to the screw seat 24 and a handle 26 fixed to the end of the screw 25 away from the cylinder body 22.

[0029] The oil guide pipe 21 is an L-shaped right-angle elbow, one end of which is connected to the sleeve valve, and the other end of which is vertically upward and communicated with the cylinder body 22 .

[0030] The cylinder body pressure cover 23 includes a top cover 231, a handle 232 fixed on the end of the top cover 231 away from the cylinder body 22, a sealing part 233 fixed on the end of the top cover 231 close to the cylinder body 22, and a sealing ring 234 installed on the sealing part 233, wherein a groove is provided on the sealing part 233, and the sealing ring 234 is installed on the sealing part 233 through the groove. The diameter of the sealing part 233 is the same as the inner diameter of the cylinder body 22, and the diameter of the top cover 231 is larger than the inner diameter of the cylinder body 22.

[0031] The screw seat 24 is composed of three metal plates, two of which are symmetrically fixed on the side walls of the cylinder body 22, and only one end of these two metal plates is fixed on the cylinder body 22, while the other end faces the direction of the cylinder body gland 23 and extends beyond the cylinder body gland 23, so that the third metal plate fixed on these two metal plates can be mounted on the cylinder body gland 23. A threaded hole is opened in the center of the third metal plate, and the screw 25 is threadedly connected to the screw 24 through this threaded hole. In actual use, the screw 25 is rotated by turning the handle 26, which can cooperate with the screw seat 24 to move the screw 25 up and down. When the screw 25 moves downward, the lower end of the screw 25 can press against the cylinder body gland 23, so that the cylinder body gland 23 is tightly covered on the cylinder body 22. When the screw 25 moves upward, space is provided for opening the cylinder body 22. At this time, the cylinder body 22 can be opened by lifting the cylinder body gland 23 upward by the handle 232.

[0032] When using this embodiment, first open the cylinder gland 23 and pour the waste liquid into the cylinder 22. Then close the cylinder gland 23 to keep the cylinder 22 airtight. Open the casing valve to allow the waste liquid to flow into the casing and enter the system pipeline under the pumping action of the downhole oil pump, completing the recycling.

[0033] It should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art may still modify the technical solutions described in the above embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An oil production device for facilitating waste liquid recovery, comprising a Christmas tree, characterized in that: Also included is a waste liquid recovery assembly connected to the Christmas tree casing valve; The waste liquid recovery component includes an oil guide pipe connected to the sleeve valve, a cylinder body fixed at one end of the oil guide pipe away from the sleeve valve and connected to the oil guide pipe, a cylinder body pressure cover buckled on the cylinder body, a screw seat fixed on the cylinder body and a screw threadedly connected to the screw seat for tightening the cylinder body pressure cover.

2. The oil production device for facilitating waste liquid recovery according to claim 1, characterized in that: The oil guide pipe is an L-shaped right-angle elbow.

3. The oil production device for facilitating waste liquid recovery according to claim 2, characterized in that: The oil guide pipe and the casing valve are fixedly connected by a clamp.

4. An oil production device for facilitating waste liquid recovery according to any one of claims 1 to 3, characterized in that: The cylinder gland comprises a top cover, a handle fixed on one end of the top cover away from the cylinder body, and a sealing portion fixed on one end of the top cover close to the cylinder body.

5. The oil production device for facilitating waste liquid recovery according to claim 4, characterized in that: A sealing ring is embedded in the sealing part to increase the sealing performance of the cylinder gland.

6. The oil production device for facilitating waste liquid recovery according to claim 5, characterized in that: A handle for rotating the screw is fixedly provided at one end of the screw away from the cylinder body.

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