Oil collector

Abstract

The utility model discloses an oil collector which comprises a metal body, an oil passing groove is formed in the middle of the metal body, an oil inlet port is formed in the bottom of the metal body, the bottom of the oil passing groove is connected with the top of the oil inlet port in a penetrating mode, the oil inlet port is arranged to be in a horn shape, and the oil collector further comprises a one-way valve mechanism which is connected into the oil passing groove in a penetrating mode. And the one-way valve mechanism is used for blocking crude oil to unidirectionally flow from the oil inlet port to the oil passing groove. The middle inner groove structure of the metal body is firstly designed and is composed of the connecting port, the oil passing groove and the oil inlet through port, and the connecting port is used for being connected with an oil pipe string; the oil inlet port is trumpet-shaped, so that crude oil can enter the metal body conveniently; and the one-way valve mechanism is arranged in the oil passing groove, so that the crude oil flows to the oil passing groove from the oil inlet port in a one-way manner, the backflow of the crude oil entering the metal body is avoided, and the stability of oil pumping is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of oil well oil transportation equipment, in particular to an oil collector. Background Art

[0002] At present, when the well crew lowers the oil pipe, a guide shoe is installed at the bottom. The guide shoe is an integrated structure with the same outer diameter. One end of this structure is provided with an oil pipe female buckle, while the other end is a smooth cylinder without threads. The unthreaded end is processed into an arc shape to prevent it from hitting the well wall or the raised position of the inner wall of the casing when lowering the oil pipe.

[0003] Since the outer diameter of the existing guide shoe structure is the same as the size of the female buckle, such a structure is not conducive to the entry of crude oil into the oil pipe. In addition, the guide shoe has a through-hole structure with the same diameter. In such a structure, during the oil transportation process, the flow direction of the crude oil will continuously change according to the pressure during extraction, which is not conducive to the single-line flow of crude oil. As a result, the crude oil at the bottom of the guide shoe will flow back. Therefore, an oil collector is proposed. Utility Model Content

[0004] The purpose of the present invention is to provide an oil collector to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an oil collector, comprising a metal body, an oil groove being formed in the middle of the metal body, an oil inlet opening being formed at the bottom of the metal body, the bottom of the oil groove being in continuous communication with the top of the oil inlet opening, and the oil inlet opening being configured in a trumpet shape, and further comprising:

[0006] A one-way valve mechanism is inserted and connected in the oil groove, and the one-way valve mechanism blocks the one-way flow of crude oil from the oil inlet to the oil groove.

[0007] Preferably, a connection port is provided on the top of the metal body, and the bottom of the connection port is connected to the top of the oil groove.

[0008] Preferably, an internal thread connection groove is provided on the inner wall of the connection port, and the internal thread connection groove is used for threaded connection between the metal body and the oil pipe.

[0009] Preferably, an internal thread sealing groove is provided on the inner wall of the oil passage groove, and the internal thread sealing groove is used for threaded connection of the one-way valve mechanism in the oil passage groove.

[0010] Preferably, the one-way valve mechanism includes:

[0011] A one-way valve tube, wherein a conducting cavity is provided in the middle of the one-way valve tube, and a sealing cone surface is provided on the inner wall of the bottom of the conducting cavity;

[0012] A rigid sphere is arranged in the conducting cavity, and an outer wall of the rigid sphere is in contact with the sealing cone surface.

[0013] Preferably, the outer wall of the one-way valve tube is provided with a sealing external thread, and the one-way valve tube is threadably connected to the internal thread sealing groove through the sealing external thread.

[0014] Preferably, an oil drain port is provided on the inner wall of the top end of the conducting cavity, and the top end of the oil drain port passes through the top end of the one-way valve tube and is connected to the top end of the oil groove.

[0015] Preferably, a multi-porous oil inlet is provided on the inner wall of the bottom end of the conducting cavity, and the multi-porous oil inlet is connected to the oil inlet through hole at one end away from the conducting cavity.

[0016] The technical effects and advantages of this utility model are:

[0017] The utility model first designs the middle inner groove structure of the metal body, which is composed of a connecting port, an oil groove and an oil inlet port, wherein the connecting port is used to connect the oil pipe string; the oil inlet port is arranged in a trumpet shape, which facilitates the entry of crude oil into the metal body; and a one-way valve mechanism is arranged in the oil groove. Through the setting of the one-way valve mechanism, the crude oil flows from the oil inlet port to the oil groove in a one-way manner, thereby avoiding the backflow of crude oil entering the metal body and ensuring the stability of oil extraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional view of the overall structure of the utility model.

[0019] Figure 2 This is a structural cross-sectional view of the metal body of the utility model.

[0020] Figure 3 This is a structural sectional view of the one-way valve mechanism of the utility model.

[0021] In the figure: 1, metal body; 101, connection port; 102, oil groove; 103, oil inlet port; 104, internal thread connection groove; 105, internal thread sealing groove;

[0022] 2. One-way valve tube; 201. Conducting cavity; 202. Multi-hole oil inlet; 203. Oil outlet; 204. Sealing cone; 205. Sealing external thread;

[0023] 3. Rigid sphere. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] The utility model provides Figure 1-3 The oil collector shown includes a metal body 1, an oil groove 102 is opened in the middle of the metal body 1, an oil inlet port 103 is opened at the bottom of the metal body 1, the bottom of the oil groove 102 is connected to the top of the oil inlet port 103, and the oil inlet port 103 is configured to be trumpet-shaped, and a connecting port 101 is opened at the top of the metal body 1, and the bottom of the connecting port 101 is connected to the top of the oil groove 102.

[0026] It should be noted that the groove structure inside the metal body 1 is composed of a connecting port 101, an oil groove 102 and an oil inlet port 103, wherein the oil inlet port 103 is configured in a trumpet shape. Compared with a traditional through-hole structure of the same diameter, the trumpet-shaped structure can maintain a larger oil intake, and also allows crude oil to enter the oil inlet port 103 more conveniently.

[0027] Specifically, an inner wall of the connection port 101 is provided with an internal thread connection groove 104 , and the internal thread connection groove 104 is used for threaded connection between the metal body 1 and the oil pipe string.

[0028] It should be noted that an internal threaded connecting groove 104 is provided in the connecting port 101. The thread size of the internal threaded connecting groove 104 needs to be compatible with the thread at the oil pipe string connector. In this way, the metal body 1 can be connected to the bottom of the oil pipe string by using the internal threaded connecting groove 104, so that the metal body 1 is used as the oil inlet end of the oil pipeline of the entire oil pipe string, and the oil inlet port 103 is used as the front end in contact with the crude oil. Through the trumpet-shaped oil inlet port 103 structure, it is more convenient for crude oil to enter the metal body 1 and be sucked into the oil pipe string by the metal body 1.

[0029] Also includes:

[0030] The one-way valve mechanism is inserted and connected in the oil groove 102. The one-way valve mechanism blocks the one-way flow of crude oil from the oil inlet port 103 to the oil groove 102. The inner wall of the oil groove 102 is provided with an internal thread sealing groove 105. The internal thread sealing groove 105 is used for the threaded connection of the one-way valve mechanism in the oil groove 102.

[0031] Specifically, the one-way valve mechanism includes:

[0032] A one-way valve tube 2, wherein a conducting cavity 201 is formed in the middle of the one-way valve tube 2, and a sealing cone 204 is formed on the inner wall of the bottom of the conducting cavity 201;

[0033] Furthermore, a sealing external thread 205 is provided on the outer wall of the one-way valve tube 2 , and the one-way valve tube 2 is threadably connected to the internal thread sealing groove 105 via the sealing external thread 205 .

[0034] It should be noted that the one-way valve tube 2 is a metal tube structure, and a sealing external thread 205 is provided on the outer wall of its top. Through the threaded cooperation between the sealing external thread 205 and the internal thread sealing groove 105, the one-way valve tube 2 can be assembled in the oil groove 102, thereby providing one-way backflow protection for crude oil at the oil groove 102.

[0035] Furthermore, an oil drain port 203 is formed on the inner wall of the top of the conducting cavity 201 , and the top of the oil drain port 203 passes through the top of the one-way valve tube 2 and is connected to the top of the oil groove 102 .

[0036] It should be noted that the top cross-section of the conducting cavity 201 is a triangular structure, and the bottom of the oil discharge port 203 is connected to the triangular structure. This structural setting prevents the conducting cavity 201 from being completely blocked when oil is introduced, ensuring that crude oil can be discharged from the oil discharge port 203.

[0037] Furthermore, a porous oil inlet 202 is formed on the inner wall of the bottom end of the conducting cavity 201 , and one end of the porous oil inlet 202 away from the conducting cavity 201 is in continuous communication with the oil inlet port 103 .

[0038] It should be noted that the multi-porous oil inlet 202 is used to allow the one-way valve tube 2 to act as an oil inlet port to divert the crude oil. This structural arrangement prevents the crude oil flowing in through the trumpet-shaped oil inlet port 103 from stably entering the one-way valve tube 2 for conduction.

[0039] The rigid sphere 3 is disposed in the conducting cavity 201 , and the outer wall of the rigid sphere 3 is in contact with the sealing conical surface 204 .

[0040] It should be noted that the diameter of the rigid sphere 3 is smaller than the opening diameter of the conducting cavity 201. The design of the sealing cone 204 structure allows the outer wall of the rigid sphere 3 to better fit the bottom of the conducting cavity 201. In this way, when the rigid sphere 3 falls under the action of gravity, it can fit the sealing cone 204 to seal the bottom of the conducting cavity 201. After the crude oil enters the porous oil inlet 202, the rigid sphere 3 moves upward under the impact of oil pressure. At this time, the crude oil can flow through the gap between the conducting cavity 201 and the rigid sphere 3, thus forming a unidirectional conductive structure.

[0041] Finally, it should be noted that the above is only 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 aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An oil collector comprising a metal body (1), characterized in that: An oil groove (102) is provided in the middle of the metal body (1), an oil inlet opening (103) is provided at the bottom of the metal body (1), the bottom of the oil groove (102) is connected to the top of the oil inlet opening (103), and the oil inlet opening (103) is configured in a trumpet shape. The metal body (1) further comprises: A one-way valve mechanism is inserted and connected in the oil passage groove (102). The one-way valve mechanism blocks the one-way flow of crude oil from the oil inlet port (103) to the oil passage groove (102).

2. The oil collector according to claim 1, characterized in that A connection port (101) is provided on the top of the metal body (1), and the bottom of the connection port (101) is connected to the top of the oil groove (102).

3. The oil concentrator according to claim 2, characterized in that An internal thread connection groove (104) is provided on the inner wall of the connection port (101), and the internal thread connection groove (104) is used for threaded connection between the metal body (1) and the oil pipe.

4. The oil concentrator according to claim 1, characterized in that An internal thread sealing groove (105) is provided on the inner wall of the oil passage groove (102), and the internal thread sealing groove (105) is used for threaded connection of the one-way valve mechanism in the oil passage groove (102).

5. The oil collector according to claim 4, characterized in that The one-way valve mechanism comprises: A one-way valve tube (2), wherein a conducting cavity (201) is provided in the middle of the one-way valve tube (2), and a sealing cone surface (204) is provided on the inner wall of the bottom of the conducting cavity (201); A rigid sphere (3) is disposed in the conduction cavity (201), and an outer wall of the rigid sphere (3) is in contact with the sealing cone surface (204).

6. The oil collector according to claim 5, characterized in that The outer wall of the one-way valve tube (2) is provided with a sealing external thread (205), and the one-way valve tube (2) is threadedly connected to the internal thread sealing groove (105) through the sealing external thread (205).

7. The oil concentrator according to claim 5, characterized in that An oil discharge port (203) is provided on the inner wall of the top end of the conducting cavity (201), and the top end of the oil discharge port (203) penetrates the top end of the one-way valve tube (2) and is connected to the top end of the oil passage groove (102).

8. The oil collector according to claim 5, characterized in that A multi-porous oil inlet (202) is provided on the inner wall of the bottom end of the conducting cavity (201), and one end of the multi-porous oil inlet (202) away from the conducting cavity (201) is connected to the oil inlet port (103).

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