CN218407393U - Water injection well tubular column drifting instrument - Google Patents
Water injection well tubular column drifting instrument Download PDFInfo
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- CN218407393U CN218407393U CN202222694896.0U CN202222694896U CN218407393U CN 218407393 U CN218407393 U CN 218407393U CN 202222694896 U CN202222694896 U CN 202222694896U CN 218407393 U CN218407393 U CN 218407393U
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- injection well
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Abstract
The utility model discloses a water injection well pipe column drifting tool, which comprises a scraping and brushing mechanism and a rotating mechanism; the scraping and brushing mechanism and the rotating mechanism are both arranged on the central rod; the fishing device also comprises a fishing mechanism and a guide mechanism, wherein the fishing mechanism comprises a buoyancy piece and a fishing head; the buoyancy piece and the fishing head are fixed on the central rod, the fishing head is arranged at the top end of the central rod, and the buoyancy piece is positioned below the fishing head; the rotating mechanism is located below the buoyancy piece, and the scraping and brushing mechanism is located below the rotating mechanism. The utility model provides a can eliminate water injection well tubular column drifting instrument that tubular column and water distributor scale deposit blockked up and mediation well-flushing bottom valve reaches and improves water injection ability, avoids the test to meet the purpose of hindering.
Description
Technical Field
The utility model belongs to the technical field of the oil field water injection technique and specifically relates to a water injection well tubular column drifting instrument.
Background
The problems of scaling, rusting, oil sludge deposition and the like appear on the inner wall of the water injection pipe column due to long-term water injection of the water injection well, so that the friction resistance is increased, the water injection oil pressure is increased, the energy consumption of a water injection system is increased, and the injection allocation is not finished; the scale and blockage of a layered water injection well, a water nozzle of a water distributor and a bottom valve of a tail pipe well washing device not only cause the rising of water injection pressure and cause unqualified separated injection, or the well washing is not communicated, even water is not absorbed, but also cause the midway blockage of a testing instrument and the failure of the water distributor due to the scale and rusting of the inner wall of a pipe column during the water injection test. At present, the technical methods for solving unqualified water injection and resistance test caused by scaling and sand setting in a pipe column mainly comprise two methods: firstly, the well is washed before testing, then testing is carried out, if the test is blocked, a testing unit adopts a well dredging measure of 'scraping blade + weighting rod', and the success rate is low because the capacity of scaling is increased in the well dredging process is limited; secondly, acid washing measures are adopted, operation inspection pipes are installed if the operation inspection pipes are invalid, the method is large in investment and long in well occupation time, and the water injection effect is seriously influenced.
In the application No.: CN204851182U, chinese patent application relates to a self-rotating drift tool for testing a water injection well, which comprises: the device comprises a suspension joint, a support, a spring, a support arm, a roller, a shaft sleeve, a ball, a bushing, a short section, a steel wire brush and a fender. The lower part of the ball on the shaft is provided with a bush which is connected with the shaft sleeve by screw thread, the lower end of the shaft is connected with a short section and a lappet in sequence, and the short section is provided with a steel wire brush. The patent has different structures, principles and operation steps.
In the application No.: CN212406682U, relates to a combined scraping type impact drifting tool applied to a water injection well. The upper part of the main body is connected with a rope cap, the lower part of the main body is provided with an impact body, an upper connecting cylinder is connected between the main body and the rope cap, the impact body is a columnar body, the lower end of the impact body is provided with an impact drill bit, the impact body is provided with a spiral slideway groove around the outer wall, the upper end of the impact body is provided with a sliding block, the impact body is arranged in the main body and the upper connecting cylinder, the sliding block at the upper end of the impact body is positioned in the upper connecting cylinder, and the lower end of the main body is provided with a guide pin which extends into the spiral slideway groove of the impact body and is matched with the spiral slideway groove.
Publication (bulletin) No.: CN204677167U, published (announced): 2015-09-30 discloses a hydraulic rotary scraping drifting device used in oilfield workover operations. The main purpose is to thoroughly remove the dirt in the eccentric water distributor channel and shorten the drifting time. This rotatory drift dredger of scraping of water conservancy mainly includes rotatory top connection and rather than the main shaft of being connected, wherein, the main shaft from last to fixing lantern shape scraper and rhombus scraper down in proper order, the turbine is connected to the lower extreme of main shaft. The hydraulic rotary scraping well dredging device can effectively remove dirt in an eccentric water distributor channel, improve the dirt removing efficiency and reduce the production cost.
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
The above-mentioned defect to prior art exists, the utility model aims at providing a can eliminate tubular column and water distributor scale deposit and block up and dredge water injection well tubular column drifting instrument of well-flushing bottom valve, reach and improve the water injection ability, avoid the test to meet the purpose that hinders.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a water injection well pipe column drifting tool comprises a scraping and brushing mechanism and a rotating mechanism; the scraping and brushing mechanism and the rotating mechanism are both arranged on the central rod;
the fishing device also comprises a fishing mechanism, wherein the fishing mechanism comprises a buoyancy piece and a fishing head;
the buoyancy piece and the catching head are fixed on the center rod, the catching head is arranged at the top end of the center rod, and the buoyancy piece is located below the catching head;
the rotating mechanism is located below the buoyancy piece, and the scraping and brushing mechanism is located below the rotating mechanism.
Further, the buoyancy piece is a hexagonal floating block.
Further, the scraping and brushing mechanism comprises a scraper.
Further, the scraping and brushing mechanism further comprises a steel brush, and the steel brush is located above the scraper.
Further, the rotation mechanism comprises a screw; the spiral sheet is fixed on the outer wall of the central rod.
Further, the device also comprises a guide mechanism, wherein the guide mechanism comprises a steel cylinder and an external pipe column;
the steel cylinder is positioned in the outer pipe column, an upper hole and a lower hole which can enable the central rod to penetrate through are formed in the steel cylinder, and the steel cylinder and the central rod can rotate relatively; the steel cylinder surrounds the spiral sheet in the steel cylinder;
and water holes are formed in the upper end surface and the lower end surface of the steel cylinder.
Furthermore, the steel cylinder is connected with the central rod through an upper bearing plate and a lower bearing plate.
Further, the outer diameter of the steel cylinder is smaller than the inner diameter of the external pipe column, the external pipe column comprises an oil pipe and a tail pipe, and a water distributor is connected between the oil pipe and the tail pipe.
Further, the lower end of the tail pipe is connected with a well-flushing bottom valve.
Compared with the prior art, the utility model following beneficial effect has:
the utility model has the advantages of simple and practical structure, low processing cost, safe and reliable operation and high construction efficiency, saves time and labor and lightens the labor intensity;
the utility model eliminates the scaling and blocking of the oil pipe, the water distributor, the tail pipe and the well-flushing bottom valve, improves the water injection capability, solves the problem of resistance in the test and improves the layered test rate;
the utility model replaces the measures of pickling, pipe inspection, well dredging test and the like, realizes the pipe inspection without moving the pipe column, saves the operation test cost, improves the water injection rate and improves the stratum energy;
the utility model discloses protect the pit shaft, improved effective water injection, prolonged the well life-span, promoted green development transformation.
Drawings
Fig. 1 is the utility model relates to a water injection well tubular column drifting instrument's schematic structure.
In the figure: the device comprises a fishing head 1, a central rod 2, a hexagonal floating block 3, a water inlet 4, an upper bearing plate 5, a steel cylinder 6, a spiral sheet 7, a lower bearing plate 8, a water outlet 9, a steel brush 10, a scraper 11, an oil pipe 12, a water distributor 13, a tail pipe 14 and a well-flushing bottom valve 15.
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 efforts all belong to the protection scope of the present invention.
Example 1:
as shown in figure 1, the water injection well pipe column drifting tool comprises four units, namely fishing, guiding, rotating and scraping and brushing.
The fishing unit comprises a hexagonal floating block 3 and a fishing head 1; the hexagonal floating block 3 and the fishing head 1 are both fixed on the central rod 2, the fishing head 1 is arranged at the top end of the central rod 2, and the hexagonal floating block 3 is positioned between the fishing head 1 and the steel cylinder 6;
the guiding unit comprises a steel cylinder 6, an oil pipe 12 and a tail pipe 14; the steel cylinder 6 is provided with a water inlet 4 and a water outlet 9, and the steel cylinder 6 is arranged in an oil pipe 12 and a tail pipe 14;
the rotating unit comprises an upper bearing plate 5, a spiral sheet 7 and a lower bearing plate 8; the spiral piece 7 is fixed on the central rod 2, and high-pressure injected water passes through the water inlet hole 4 and the water outlet hole 9 to push the spiral piece 7 to rotate.
The scraping and brushing unit comprises a steel brush 10 and a scraper 11; the steel brush 10 and the scraper 11 are both fixed on the central rod 2, the scraper 11 is arranged at the bottom end of the central rod 2, and the steel brush 10 is located between the scraper 11 and the steel cylinder 6. The steel brush 10 is located above the scraper 11.
The spiral piece 7 is fixed on the outer wall of the central rod 2, the steel cylinder 6 is provided with a water inlet hole 4 and a water outlet hole 9 which can enable the central rod 2 to penetrate through, and the steel cylinder 6 and the central rod 2 can rotate relatively; the steel cylinder 6 surrounds the spiral sheet 7 in the steel cylinder;
the upper end surface of the steel cylinder is provided with a water inlet 4, and the lower end surface of the steel cylinder is provided with a water outlet 9.
The steel cylinder is fixedly connected with the central rod through an upper bearing plate 5 and a lower bearing plate 8;
the upper bearing plate 5 is located close to the water inlet hole 4, and the lower bearing plate 8 is located close to the water outlet hole 9.
Use in the embodiment of the utility model discloses an in 1, the process of implementing the drifting is that high-pressure injected water passes through inlet opening 4, apopore 9, promotes 7 high-speed rotations of flight and drives well core rod 2 and steel brush 10, the high-speed rotation of scraper 11, through the high-speed rotation of steel brush 10, scraper 11, eliminates scale deposit and fatlute on oil pipe 12, water injection mandrel 13, tail pipe 14 and the bottom valve of well-flushing 15.
The working principle is as follows: the high-speed injected water generates thrust through the spiral sheet and rotates to drive the steel brush and the scraper to rotate, so that scale and rust and oil sludge blocks on the wall of the oil pipe are scraped, and the water distributor is cleaned. When the tool rotates to the tail pipe and stops injection, the well is backwashed, and the six-edge floating block of the tool drives the central rod to ascend to the well mouth to complete one-time well dredging.
Example 2:
as shown in fig. 1, in the water injection well string drifting tool of the present embodiment, the outer diameter of the steel cylinder 6 is slightly smaller than the inner diameter of the oil pipe, but under the action of the thrust of water injection, the steel cylinder 5 makes swinging contact with the inner wall of the oil pipe 12 and generates friction, so that the steel cylinder 6 lags behind the rotation of the spiral piece 7 and the central rod 2. High-pressure injected water passes through the water inlet hole 4, the spiral sheet 7 is pushed to rotate at a high speed, the central rod 2, the steel brush 10 and the scraper 11 are driven to rotate at a high speed, and the scale formation and oil sludge on an oil pipe, a water distributor, a tail pipe and a well-flushing bottom valve are eliminated through the high-speed rotation of the steel brush 9 and the scraper 10.
After downward through scraping is finished, water injection is stopped, the hexagonal floating block 3 of the structure floats upwards under the action of water buoyancy, and when the hexagonal floating block rises above a main valve of a wellhead, the main valve is closed and taken out of the wellhead; if the structure can not float above a main valve of the wellhead, a conventional fishing method is adopted, the fishing head 1 is fished out through a fisher, and a test valve on the wellhead is closed.
Although fig. 1 is used in all the above embodiments, it is obvious to those skilled in the art that a separate drawing is not shown as long as parts or structural features missing from the embodiments are removed from the drawing. As will be clear to the skilled person. Of course, the embodiments with more components are only the preferred embodiments, and the embodiments with fewer components are the basic embodiments, but the basic objects of the present invention can also be achieved, so all of these modified embodiments are within the scope of the present invention.
All parts and components which are not discussed in the present application and the connection mode of all parts and components in the present application belong to the known technology in the technical field. The application is direct and will not be described in detail.
In the present application, the term "plurality" means two or more unless expressly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A water injection well pipe column drifting tool comprises a scraping and brushing mechanism and a rotating mechanism; the scraping and brushing mechanism and the rotating mechanism are both arranged on the central rod;
the fishing device is characterized by further comprising a fishing mechanism, wherein the fishing mechanism comprises a buoyancy piece and a fishing head;
the buoyancy piece and the catching head are fixed on the center rod, the catching head is arranged at the top end of the center rod, and the buoyancy piece is located below the catching head;
the rotating mechanism is located below the buoyancy piece, and the scraping and brushing mechanism is located below the rotating mechanism.
2. The water injection well string drifting tool of claim 1, wherein the buoyancy member is a six-edged buoyancy block.
3. A water injection well string drifting tool according to claim 1 or 2, wherein the wiper mechanism includes a wiper blade.
4. The water injection well string drifting tool of claim 3, wherein the wiper mechanism further comprises a steel brush located above the wiper blade.
5. A water injection well string drifting tool according to claim 1 or 2, wherein the rotation mechanism comprises a helical blade; the spiral sheet is fixed on the outer wall of the central rod.
6. The water injection well string drifting tool of claim 1 or 2, further comprising a guiding mechanism, wherein the guiding mechanism comprises a steel cylinder, an outer string;
the steel cylinder is positioned in the external pipe column, the steel cylinder is provided with an upper hole and a lower hole which can enable the central rod to pass through, and the steel cylinder and the central rod can rotate relatively; the steel cylinder surrounds the spiral sheet in the steel cylinder;
and water holes are formed in the upper end surface and the lower end surface of the steel cylinder.
7. The water injection well string drifting tool of claim 6, wherein the steel cylinder is connected to the center rod through an upper bearing plate and a lower bearing plate.
8. The well pigging tool of claim 6, wherein the outer diameter of the steel cylinder is smaller than the inner diameter of the outer string, the outer string comprises an oil pipe and a tail pipe, and a water distributor is connected between the oil pipe and the tail pipe.
9. The well pigging tool of claim 8 wherein the lower end of the liner is connected to a bottom wash valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222694896.0U CN218407393U (en) | 2022-10-13 | 2022-10-13 | Water injection well tubular column drifting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222694896.0U CN218407393U (en) | 2022-10-13 | 2022-10-13 | Water injection well tubular column drifting instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218407393U true CN218407393U (en) | 2023-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222694896.0U Active CN218407393U (en) | 2022-10-13 | 2022-10-13 | Water injection well tubular column drifting instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218407393U (en) |
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2022
- 2022-10-13 CN CN202222694896.0U patent/CN218407393U/en active Active
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