Rotary oil bailing heavy hammer

Abstract

The utility model relates to a rotary type oil bailing heavy hammer, which comprises a lead body outer pipe, a spiral pipe, a spiral paraffin scraper, a deep groove ball bearing, a pressure bearing, a hammer head, a hammer head connecting shaft, a bearing gland and a spiral blade, the lead body outer pipe is hollow and is used for filling a lead body, the hammer head is fixed on the hammer head connecting shaft, the hammer head is rotatably connected with the lead body outer pipe through the hammer head connecting shaft, and the bearing gland is fixed on the hammer head connecting shaft. The spiral paraffin scraper is rotationally connected to the outer wall of the lead body outer pipe, the spiral pipe is arranged on the lead body outer pipe in a sleeving mode and rotationally connected with the lead body outer pipe, the spiral blade is fixedly connected to the outer wall of the spiral pipe, a spiral line protrusion is arranged on the hammer head, and a spiral line groove is formed in the outer wall of the spiral paraffin scraper; the rotary oil bailing heavy hammer has the advantages that the lead filling process is carried out in the lead outer pipe of the rotary oil bailing heavy hammer, the appearance is not changed, and the weight is increased by multiple times. During operation, the oil bailing heavy hammer enters a wax deposition layer in a rotating mode, the wax deposition layer is lifted to the upper portion of a shaft and discharged out of the shaft, and then oil bailing operation is smoothly conducted.

Description

Technical Field

[0001] The utility model relates to the technical field of oil well oil catching tools for oil fields, in particular to a rotary oil catching heavy hammer. Background Art

[0002] Oil wells that are used for oil recovery are generally located in remote areas with low production. Oil recovery operations can only be carried out after a certain amount of oil has accumulated. During this process, a large amount of wax is precipitated from the crude oil to form a wax layer, which is hard and sticky. Therefore, during the oil recovery operation, the wax layer must be removed before the crude oil can be extracted. The oil recovery hammers currently on the market have problems such as light weight, simple structure, poor wax removal effect, and long operation cycle, which directly lead to extremely high costs for oil recovery operations. Utility Model Content

[0003] In view of the above problems, the purpose of the utility model is to provide a rotary oil recovery hammer for use in wax removal operations in wells with complex conditions and severe wax deposition, so as to overcome the deficiencies of the above prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A rotary oil recovery hammer comprises: a lead body outer tube, a spiral tube, a spiral wax scraper, a deep groove ball bearing, a pressure bearing, a hammer head, a hammer head connecting shaft, a bearing gland, and a spiral blade. The lead body outer tube is hollow inside and used for pouring the lead body. The hammer head connecting shaft is inserted into the front end of the lead body outer tube and is rotatably connected to the lead body outer tube through a deep groove ball bearing. The pressure bearing and the bearing gland are mounted on the portion of the hammer head connecting shaft extending out of the lead body outer tube. The hammer head is fixed on the hammer head connecting shaft. The hammer head is rotatably connected to the lead body outer tube through the hammer head connecting shaft. The spiral wax scraper It is rotatably connected to the outer wall of the lead body outer tube and is located at one end close to the hammer head. The spiral tube is sleeved on the lead body outer tube and rotatably connected to the lead body outer tube. The spiral tube is located at one end away from the hammer head. The spiral blades are fixedly connected to the outer wall of the spiral tube. A spiral protrusion is provided on the hammer head. A spiral groove is provided on the outer wall of the spiral scraper. After the lead body outer tube is filled with lead to increase the weight, the hammer head destroys the wax layer, the spiral wax scraper scrapes off the wax layer on the wellbore wall, and the spiral blades on the spiral tube spirally lift the broken wax layer to the upper part of the wellbore and discharge it.

[0006] As a preferred embodiment of the present invention, the hammer head is a conical hammer head, and the spiral protrusions are welded on the outer circumference of the conical hammer head from top to bottom, and the spiral protrusions are used to drive the conical hammer head to rotate in the wax layer.

[0007] As a preferred embodiment of the present invention, the spiral wax scraper is cylindrical, and the outer circumference of the spiral wax scraper is provided with the spiral groove from top to bottom, and the spiral groove is used to drive the spiral wax scraper to rotate in the wax layer.

[0008] As a preferred embodiment of the utility model, a rubber pumping tube is installed on the lead body outer tube, and the rubber pumping tube is provided with a wedge-shaped self-locking device connected to the steel wire rope of the oil recovery vehicle, and the wedge-shaped self-locking device is used to self-lock the rubber pumping tube to the steel wire rope of the oil recovery vehicle.

[0009] The advantages and positive effects of the utility model are:

[0010] 1. The rotary oil catching hammer of the utility model is improved on the basis of the ordinary hammer, which greatly shortens the oil catching cycle and completely solves the problem of oil catching difficulty in wax-bound wells.

[0011] 2. The lead outer tube (hammer cavity) of the rotary oil recovery hammer of the utility model is filled with lead, so the appearance remains unchanged, but the weight is increased several times. During operation, the oil recovery hammer rotates into the wax layer, lifts the wax layer to the upper part of the wellbore, removes it from the well, and then smoothly performs the oil recovery operation.

[0012] 3. The rotary oil recovery hammer of the utility model solves the problem that the oil recovery well cannot operate normally due to severe wax deposition, and has the advantages of simple and practical structure, quick and convenient installation, and improved production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a sectional view of the overall structure of the utility model.

[0014] Figure 2 It is a sectional view of a conical hammer head in the utility model.

[0015] Figure 3 It is a cross-sectional view of the spiral wax scraper in the utility model.

[0016] Figure numerals: lead body outer tube 1, spiral tube 2, spiral wax scraper 3, deep groove ball bearing 4, pressure bearing 5, conical hammer head 6, hammer head connecting shaft 7, bearing gland 8, spiral blade 9, lead body 10, spiral line protrusion 11, spiral line groove 12. DETAILED DESCRIPTION

[0017] In the following description, for the purpose of illustration, in order to provide a comprehensive understanding of one or more embodiments, many specific details are set forth. However, it is apparent that these embodiments may also be implemented without these specific details. In other examples, for ease of describing one or more embodiments, known structures and devices are shown in the form of block diagrams.

[0018] See also Figure 1-3The present embodiment provides a rotary oil recovery hammer, comprising: a lead body outer tube 1, a spiral tube 2, a spiral wax scraper 3, a deep groove ball bearing 4, a pressure bearing 5, a conical hammer head 6, a hammer head connecting shaft 7, a bearing pressure cover 8, and a spiral blade 9. The lead body outer tube 1 is hollow inside for pouring a lead body 10. One end of the hammer head connecting shaft 7 is inserted into the front end of the lead body outer tube 1 and is rotatably connected to the lead body outer tube 1 through the deep groove ball bearing 4. The other end of the hammer head connecting shaft 7 extends out of the lead body outer tube 1 and is rotatably connected to the conical hammer head 6. The pressure bearing 5 and the bearing pressure cover 8 are mounted on the hammer head connecting shaft 7. The conical hammer head 6 is rotatably connected to the lead body outer tube 1 through the hammer head connecting shaft 7. The spiral wax scraper 3 is rotatably connected to the outer wall of the lead body outer tube 1 and is located at one end close to the conical hammer 6. The spiral tube 2 is mounted on the lead body outer tube 1 and is fixedly connected to the lead body outer tube 1. The spiral tube 2 is located at one end away from the conical hammer 6. The spiral blades 9 are fixedly connected to the outer wall of the spiral tube 2. The conical hammer 6 is provided with a spiral protrusion 11. The outer wall of the spiral wax scraper 3 is provided with a spiral groove 12. After the lead body 10 is poured into the lead body outer tube 1 to increase the weight, the conical hammer 6 destroys the wax layer, and the spiral wax scraper 3 scrapes off the wax layer on the wellbore wall. The spiral blades 9 on the spiral tube 2 spirally lift the broken wax layer to the upper part of the wellbore and discharge it.

[0019] A rubber pumping tube is installed on the lead body outer tube 1 in this embodiment. The rubber pumping tube is provided with a wedge-shaped self-locking device connected to the steel wire rope of the oil recovery vehicle. The wedge-shaped self-locking device is used to self-lock the rubber pumping tube on the steel wire rope of the oil recovery vehicle.

[0020] Working principle: During the process of lowering the heavy hammer to scoop out oil, the lead body 10 is poured into the outer tube 1 of the lead body to increase its weight, the conical hammer head 6 destroys the wax layer, and then the spiral wax scraper 3 rotates downward to destroy and crush the wax layer, and the spiral blade 9 spirally guides the wax layer, and the next step is to scoop out oil, wherein the spiral protrusion 11 of the conical hammer head 6 contacts the wax layer, driving the conical hammer head 6 to rotate in the wax layer, and similarly, the spiral wax scraper 3 and the spiral tube 2 rotate in the wax layer driven by their respective spiral grooves 12 and spiral blades 9.

[0021] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A rotary oil recovery hammer, characterized in that: include: A lead body outer tube, a spiral tube, a spiral wax scraper, a deep groove ball bearing, a pressure bearing, a hammer, a hammer connecting shaft, a bearing gland, and a spiral blade. The interior of the lead body outer tube is hollow for pouring the lead body. The hammer connecting shaft is inserted into the front end of the lead body outer tube and is rotatably connected to the lead body outer tube through a deep groove ball bearing. The pressure bearing and the bearing gland are mounted on the portion of the hammer connecting shaft extending out of the lead body outer tube. The hammer is fixed on the hammer connecting shaft. The hammer is rotatably connected to the lead body outer tube through the hammer connecting shaft. The spiral wax scraper is rotatably connected to the lead body. The outer wall of the outer tube is located at an end close to the hammer head, the spiral tube is sleeved on the outer tube of the lead body and is rotatably connected to the outer tube of the lead body, the spiral tube is located at an end away from the hammer head, the spiral blades are fixedly connected to the outer wall of the spiral tube, the hammer head is provided with a spiral protrusion, and the outer wall of the spiral wax scraper is provided with a spiral groove. After the lead outer tube is filled with lead to increase the weight, the hammer head destroys the wax layer, the spiral wax scraper scrapes off the wax layer on the wall of the wellbore, and the spiral blades on the spiral tube spirally lift the broken wax layer to the upper part of the wellbore and discharge it.

2. A rotary oil recovery hammer according to claim 1, characterized in that: The hammer head is a conical hammer head, and the spiral line protrusion is welded from top to bottom on the outer circumference of the conical hammer head. The spiral line protrusion is used to drive the conical hammer head to rotate in the wax layer.

3. A rotary oil recovery hammer according to claim 1, characterized in that: The spiral wax scraper is cylindrical, and the outer circumference of the spiral wax scraper is provided with the spiral groove from top to bottom, and the spiral groove is used to drive the spiral wax scraper to rotate in the wax layer.

4. A rotary oil recovery hammer according to claim 1, characterized in that: A rubber pumping tube is installed on the lead body outer tube, and the rubber pumping tube is provided with a wedge-shaped self-locking device connected with the steel wire rope of the oil recovery vehicle, and the wedge-shaped self-locking device is used to self-lock the rubber pumping tube on the steel wire rope of the oil recovery vehicle.

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