CN211974915U - Circulating rotational flow washing tool in large-inclination oil well - Google Patents
Circulating rotational flow washing tool in large-inclination oil well Download PDFInfo
- Publication number
- CN211974915U CN211974915U CN202020056771.3U CN202020056771U CN211974915U CN 211974915 U CN211974915 U CN 211974915U CN 202020056771 U CN202020056771 U CN 202020056771U CN 211974915 U CN211974915 U CN 211974915U
- Authority
- CN
- China
- Prior art keywords
- wall
- pipe
- outer pipe
- liquid outlet
- upper joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Cyclones (AREA)
Abstract
The utility model provides a big inclination oil well inner loop whirl washing tool, include: the double-layer concentric working barrel comprises an outer pipe and an inner pipe concentrically arranged in the outer pipe, and a wall clamping cavity is formed between the inner wall of the outer pipe and the outer wall of the inner pipe; the rubber cylinder sealing element is sleeved on the outer wall of the outer pipe; the outer wall of the outer pipe is provided with a centralizer, the lower end port of the outer pipe is provided with a radially contracted seeker, the center of the seeker is provided with a center hole, the center hole of the seeker and the lower end port of the inner pipe are connected into an integral structure, the radial outer end of the seeker is an arc-shaped section, the arc-shaped section is provided with an oblique cyclone liquid outlet hole, and the cyclone liquid outlet hole is communicated with the wall clamping cavity. The utility model discloses can effectively improve the washing effect to improve construction quality, improved construction conditions, practiced thrift manufacturing cost greatly.
Description
Technical Field
The utility model belongs to the technical field of big inclination oil well production technique and specifically relates to a big inclination oil well inner loop whirl washing means.
Background
The wide-inclination oil well, the horizontal well and the directional well are widely popularized in domestic oil fields, and the oil well has relatively high yield due to the advanced process level, and plays a positive role in improving the later recovery ratio of the oil field.
Such wells are produced for a certain time or because of downhole failure, require downhole operations of sand washing, paraffin removal, well flushing construction to increase or restore their production capacity. The on-site flushing construction generally adopts a lower pipe column with a pen point, and impurities in the well are brought to the ground through circulation of working fluid. There are many drawbacks to this approach, which are embodied in: 1. the outer diameter of the sand washing pen point is small, and sundries and sand on the inner wall of the casing, which are not contacted with the pen point, cannot be washed away when the pen point is attached to one side of the casing in a highly-deviated well section, so that the situation is particularly serious in a horizontal well, and the construction quality is seriously influenced. 2. In the positive flushing process, flushed sand and impurities are gathered near a large-inclination deflecting point and are difficult to return to the ground, and the sand setting and drill sticking accidents can be caused by slight carelessness. 3. In the back flushing process, the normal sand flushing pen point has small flushing thrust, and is difficult to flush when encountering firm wax deposition or sand blockage, thereby causing troubles to construction, increasing the rework workload and causing the waste of large investment cost.
The prior art method has a plurality of defects, and at present, because no ideal tool is available in the construction process, the mode is more original, and improvement is urgently needed. Therefore, at present, no good and scientific preventive measures exist, and the method is a relatively large defect. There is an urgent need for job site operators to improve such out-dated flushing methods.
Application No.: 201810018666.8, filing date: 2018-01-09 relates to an underground self-adaptive hydraulic cyclone flushing tool, and belongs to the technical field of underground flushing tools. The underground self-adaptive hydraulic cyclone flushing tool is composed of a shell, an upper joint, a lower joint, a flushing sprayer, a centralizing bearing and a variable resistance adjusting short circuit: one end of the shell is in threaded connection with an upper joint; the other end of the shell is in threaded connection with an end cover; a mandrel is movably arranged in the shell through symmetrically arranged centering bearings; one end of the mandrel is provided with a variable resistance adjusting short circuit; the other end of the mandrel is provided with a washing nozzle through a lower joint thread; the middle part of the mandrel is wound with a coil; two ends of the coil are respectively connected with the variable resistance adjusting short circuit; and a magnet is sleeved in the shell of the outer ring of the middle part of the mandrel through a magnet. The underground self-adaptive hydraulic cyclone flushing tool is simple in structure and ingenious in design, solves the problems that the existing flushing tool is complex in structure, not easy to maintain and easy to lose efficacy, and meets the use requirements of people.
Application No.: 201721630978.1, filing date: 2017-11-28 discloses an oil-water well underground hydraulic cyclone flushing device, which comprises a driving box, wherein a working box is arranged on the lower side of the driving box, a water storage tank is arranged on one side of the top wall in the driving box, a high-pressure pump is communicated with the right side of the water storage tank, a water inlet pipe is communicated with the lower side output end of the high-pressure pump, a motor is arranged on the top wall on the right side in the driving box, a driving wheel is arranged at the lower side of the motor, a driven wheel is arranged on the left side of the driving wheel, a water feeding pipe is arranged at the axis of the driven wheel, the bottom end of the water inlet pipe extends into the water feeding pipe, and the water feeding pipe sequentially penetrates through a first fixed bearing, the top wall of the working box and the bottom wall. The scraper has the advantages of being capable of well cleaning and collecting residual dirt on the scraper, and the problem that subsequent cleaning cannot be carried out due to the fact that the residual dirt on the scraper is too much is solved.
Application No.: 201620689020.9, filing date: 2016-07-01 relates to a rotational flow flushing tool, which comprises a tool main body, a screw rod and a nozzle, wherein a liquid channel is arranged in the tool main body, and the liquid channel is sequentially provided with a connecting section, a flow guide section, a guide section and a spraying section from a liquid inlet to a liquid outlet; the outer surface of the tool main body is provided with an annular groove at the connecting section; the outer surface of the tool main body is provided with a square flat which is convenient for tool disassembly and assembly at the flow guide section, and a rotatable screw is arranged in the flow guide section; the guide section is round platform shape, and the guide section is less than the internal diameter of keeping away from liquid outlet one end near the internal diameter of liquid outlet one end, and the guide section is extending to the liquid outlet level in the one end that is close to the liquid outlet, forms the injection section, and the nozzle setting is around guide section and injection section. The utility model has the advantages that: simple structure, the scale removal is effectual, washes efficiently, and easy dismounting is with low costs, and is economical and practical, convenient maintenance and maintenance.
Application No.: 201520678920.9, filing date: 2015-09-06 discloses an oil-water well underground hydraulic cyclone flushing device which is suitable for underground blockage removal construction. The hydraulic cyclone flushing device comprises a sand flushing pen point, wherein a scraping sheet is arranged on the excircle of the sand flushing pen point, the lower part of a cyclone tube is arranged in the sand flushing pen point, and the upper part of the cyclone tube is suspended in an upper connector; the connecting sleeve is connected with the coiled tubing and then installed in the upper joint and located above the cyclone tube, a spiral groove is formed in the hole wall of a central hole of the cyclone tube, and the coiled tubing is connected with the high-pressure water pump on the ground. The blockage removal construction efficiency and blockage removal effect are obviously improved, and the oil well yield and the water injection efficiency are improved. Compared with the prior secondary operation of sand washing by using a sand washing pen point under an oil pipe and grinding a shoe after the sand washing pen point is not moved, the average number of pipe columns for each operation well is reduced, the tool use and operation labor cost are greatly saved, the production cost is effectively reduced, and the environment is protected.
Application No.: 201610954212.2, filing date: 2016-10-27 provides a double helix flushing tool, including the double helix body of archimedes, rotatable nozzle, the double helix body of archimedes is the cylinder tubular column, and the internal diameter of tubular column right-hand member diminishes gradually towards the right side, and the inner chamber of the double helix body of archimedes right-hand member is that 120 contained angles are evenly opened has 3 double helix grooves, and rotatable nozzle is all connected to every double helix groove, and the purpose is that solve current flushing fluid flow direction of flushing tool can't realize the whirl, wash the effect poor, wash the problem that the time is long and the erosion resistance is poor to improve and wash efficiency and effect.
Application No.: 201410294060.9, filing date: 2014-06-27 relates to a horizontal well leakage-proof rotational flow sand washing device and a sand washing process thereof. During the sand washing construction of the horizontal well, the sand washing liquid is seriously leaked at the perforation section, and the washing and carrying capacity at the horizontal section is poor. A horizontal well leakage-proof rotational flow sand washer device is characterized in that a horizontal well rotational flow sand washer and a horizontal well leakage-proof double-layer oil pipe isolation circulation mechanism are communicated through a common oil pipe, and two ends of the common oil pipe are communicated with the horizontal well rotational flow sand washer and the horizontal well leakage-proof double-layer oil pipe isolation circulation mechanism through oil pipe couplings; the process comprises the steps that a horizontal well rotational flow sand washing device, a horizontal well anti-leakage double-layer oil pipe isolation circulation mechanism and a common oil pipe are sequentially connected and are put into a shaft of a horizontal well; a self-sealing well sealer is installed at a well mouth, and sand washing liquid is pumped into the annular cavity; and checking the circulation smoothness of the sand washing liquid, pumping the sand washing liquid while lowering the sand washing pipe column, and performing conventional sand washing operation. The sand washing liquid can be prevented from being leaked from the stratum in the sand washing operation of the horizontal well, and the working efficiency is improved.
Application No.: 201220573228.6 application date: 2012-11-02 discloses a horizontal well whirl sand washing unblocking tubular column, including the sleeve pipe and set up at the inside sand washing oil pipe of sleeve pipe, be provided with the sand washing assembly on the sand washing oil pipe in the sleeve pipe, the sand washing assembly includes that the double-barrelled sand washing passageway of bridge type and whirl sand washing unblock device, the double-barrelled sand washing passageway of bridge type includes outer tube and the inner tube of cover mutually, and the inner and outer pipe upper end is connected on sand washing oil pipe through the bridge type bi-pass joint simultaneously, and the inner and outer pipe lower extreme is connected on the whirl sand washing unblock device through whirl sand washing joint simultaneously. Effectively improve the flushing and carrying capacity of the working solution and improve the sand flushing efficiency. The problems that the sand washing of the horizontal well needs large-discharge sand washing liquid, the sand washing effect is poor, and a sand washing pipe column is easy to clamp are solved, and the method has important significance for sand washing and blockage removing construction of the horizontal well.
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, perhaps technical field or application scenario are different, are directed to the utility model discloses more technical problem and the beneficial effect that will solve, above open technical document all do not have the technological inspiration.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned defect that prior art exists, provide a big inclination oil well inner loop whirl washing tool, can effectively improve and wash the effect to improve construction quality, improve construction conditions, practice thrift manufacturing cost greatly.
The purpose of the utility model can be realized by the following technical measures:
this big inclination oil well inner loop whirl washing instrument includes:
the double-layer concentric working barrel comprises an outer pipe and an inner pipe concentrically arranged in the outer pipe, a wall clamping cavity is formed between the inner wall of the outer pipe and the outer wall of the inner pipe, and a centralizer is arranged on the outer wall of the outer pipe; the rubber cylinder sealing element is sleeved on the outer wall of the outer pipe;
the lower port of the outer pipe is provided with a radially contracted guide head, the center of the guide head is provided with a center hole, the center hole of the guide head is connected with the lower port of the inner pipe into an integral structure, the radially outer end of the guide head is an arc-shaped section, the arc-shaped section is provided with an oblique rotational flow liquid outlet hole, and the rotational flow liquid outlet hole is communicated with the wall clamping cavity.
The purpose of the utility model can be realized by the following technical measures:
further, the inner diameter of the centralizer is consistent with the inner diameter of the outer pipe, and the aperture of the center hole of the seeker is consistent with the inner diameter of the inner pipe.
Furthermore, at least three cyclone liquid outlet holes are formed, and the aperture of each cyclone liquid outlet hole is 15 mm; the cyclone liquid outlet holes are distributed in a vortex shape from inside to outside and are inclined downwards.
Furthermore, a centralizer is arranged on the outer wall of the outer pipe, and the centralizer is located above the guide head and below the rubber cylinder sealing element.
Furthermore, the outer wall of the outer pipe is provided with a limit ring platform for preventing the rubber sleeve sealing element from sliding downwards.
Further, the packing element sealing member includes packing element sealing member main part and sets up the hydraulic expansion leather cup in packing element sealing member main part upper end, hydraulic expansion leather cup and packing element sealing member main part formula structure as an organic whole.
Further, still include:
the inner wall of the upper port of the upper joint is provided with a tubular column connecting female buckle, the inner wall of the lower port of the upper joint is provided with an outer pipe connecting inner thread, the inner wall of the upper joint is provided with a necking ring table, and the inner wall of the necking ring table is provided with an inner pipe connecting inner thread.
Furthermore, an inner pipe connecting external thread is arranged on the outer wall of the upper end of the inner pipe and connected with an inner pipe connecting internal thread of the upper joint, and an outer pipe connecting external thread is arranged on the outer wall of the upper end of the outer pipe and connected with an outer pipe connecting internal thread of the upper joint; the upper joint is provided with a liquid inlet hole which is communicated with the wall clamping cavity in the radial direction.
Compared with the prior art, the utility model following beneficial technological effect has:
the utility model relates to a big inclination oil well of oil field is at sand washing, well-flushing in-process, improves the technique of washing effect. In particular to a rubber type internal circulation rotational flow flushing tool which is developed in order to make up the problem that the flushing effect of a common flushing tool in a highly-inclined well section and a horizontal well section is poor in the flushing process of a highly-inclined oil well. Thereby in order to ensure construction quality, reduce the operating cost, improve work efficiency's novel instrument.
Connecting the tool with a tubular column, driving the well fluid into the well from the oil sleeve annulus by a pump, expanding the inner wall of a sealing sleeve under the action of hydraulic pressure by an expansion leather cup when the well fluid reaches the position of a hydraulic expansion leather cup, enabling the well fluid to not go down along the oil sleeve annulus, but to enter the cavity of the clamping wall of the tool along four fluid inlet holes on an upper joint, enabling the well fluid to go down along the cavity of the clamping wall, and jetting out impurities in the well by rotational flow of a rotational flow fluid outlet hole to disperse the impurities in the well. After the sundries after being dispersed are mixed with the well entering liquid, the mixture goes upwards along the inner cavity of the inner pipe to enter the interior of the tool and flows out of the ground through the inner cavity of the connecting pipe column, and then the deepening pipe column is gradually lowered until all well sections are cleaned, so that the washing work is completed. Because the flow area suddenly reduces when the working fluid flows through the tool, the flushing effect is greatly improved by generating more than four times of the thrust under the condition that the discharge capacity of the pump truck is unchanged and by the action of the rotational flow liquid outlet holes.
The tool has the characteristics that: the structure is simple, the cost is low, the work is reliable, the applicability is high, and the purposes of improving the washing construction quality, reducing the cost input and improving the work efficiency are achieved. Because the use mode of this instrument is simple effective, and the working method speed compares construction fast, efficient with in the past, and safe state and construction speed have great improvement than traditional method, and the result of use is showing. Has better economic and social benefits and popularization and use values.
Drawings
FIG. 1 is a schematic cross-sectional structural view of an embodiment of the present invention;
fig. 2 is an external structural diagram of an embodiment of the present invention;
FIG. 3 is a schematic view of a top connector structure;
FIG. 4 is a schematic view of a sealing member of the packing box;
fig. 5 is a schematic structural view of a double-layer concentric working barrel.
In the figure: the device comprises an upper joint 1, a rubber cylinder sealing element 2, a double-layer concentric working cylinder 3 and a centralizer 4;
a pipe column connecting box 101, an inner pipe connecting internal thread 102, a liquid inlet hole 103 and an outer pipe connecting internal thread 104;
a hydraulic expansion leather cup 201 and a rubber cylinder sealing element main body 202;
the device comprises an inner pipe connecting external thread 301, an inner pipe 302, an outer pipe connecting external thread 303, an outer pipe 304, a guide head 305, a cyclone liquid outlet hole 306 and a double-wall cavity 307.
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 work belong to the protection scope of the present invention.
Example 1:
referring to fig. 1 to 5, the present invention provides a technical solution:
circulating rotational flow washing tool in large-inclination oil well comprises:
the double-layer concentric working barrel 3 comprises an outer pipe 304 and an inner pipe 302 concentrically arranged in the outer pipe, and a wall clamping cavity 307 is formed between the inner wall of the outer pipe and the outer wall of the inner pipe;
the rubber cylinder sealing element 2 is sleeved on the outer wall of the outer pipe, and the centralizer 4 is arranged on the outer wall of the outer pipe 304; the lower port of the outer pipe is provided with a radially contracted guide head 305, the center of the guide head is provided with a center hole, the center hole of the guide head is connected with the lower port of the inner pipe into an integral structure, the radially outer end of the guide head is an arc-shaped section, the arc-shaped section is provided with an oblique cyclone liquid outlet hole 306, and the cyclone liquid outlet hole is communicated with the wall clamping cavity.
Further, the inner diameter of the centralizer is consistent with the inner diameter of the outer pipe, and the aperture of the center hole of the seeker is consistent with the inner diameter of the inner pipe.
Furthermore, at least three cyclone liquid outlet holes are formed, and the aperture of each cyclone liquid outlet hole is 15 mm; the cyclone liquid outlet holes are distributed in a vortex shape from inside to outside and are inclined downwards.
Further, a centralizer 4 is arranged on the outer wall of the outer pipe, and the centralizer is located above the guide head and below the rubber cylinder sealing element.
Furthermore, the outer wall of the outer pipe is provided with a limit ring platform for preventing the rubber sleeve sealing element from sliding downwards.
Further, the rubber cylinder sealing element comprises a rubber cylinder sealing element main body 202 and a hydraulic expansion leather cup 201 arranged at the upper end of the rubber cylinder sealing element main body, wherein the hydraulic expansion leather cup and the rubber cylinder sealing element main body are of an integrated structure.
Further, still include:
the inner wall of the upper end opening of the upper joint is provided with a tubular column connecting female buckle 101, the inner wall of the lower end opening of the upper joint is provided with an outer pipe connecting inner thread 104, the inner wall of the upper joint is provided with a neck ring table, and the inner wall of the neck ring table is provided with an inner pipe connecting inner thread 102.
Further, the outer wall of the upper end of the inner pipe is provided with an inner pipe connecting external thread 301 and is connected with an inner pipe connecting internal thread 102 of the upper joint, and the outer wall of the upper end of the outer pipe is provided with an outer pipe connecting external thread 303 and is connected with an outer pipe connecting internal thread 104 of the upper joint; the upper joint is provided with a liquid inlet hole 103 which is radially communicated with the wall clamping cavity.
The tool is composed of: the upper joint 1, the rubber cylinder sealing element 2, the double-layer concentric working cylinder 3, the centralizer 4 and the like. The upper joint is composed of a pipe column connecting female buckle 101, an inner pipe connecting internal thread 102, a liquid inlet hole 103 and an outer pipe connecting internal thread 104; the rubber cylinder sealing element 2 consists of a hydraulic expansion leather cup 201 and a rubber cylinder sealing element main body 202; the double-layer concentric working barrel 3 consists of seven parts, namely an inner pipe connecting external thread 301, an inner pipe 302, an outer pipe connecting external thread 303, an outer pipe 304, a guide head 305, a cyclone liquid outlet hole 306, a wall clamping cavity 307 and the like.
The upper joint 1 is a cylindrical structure with the maximum outer diameter of 120mm and the length of 270mm, a 73mm female buckle is machined at the uppermost part, special female buckles with the inner cavities of 60.3mm and 100mm are respectively machined at the inner cavities, and four through holes with the diameter of 20mm are machined in the middle of the joint.
The rubber sleeve sealing element 2 is an annular rubber sleeve with the height of 300mm and the maximum outer diameter of 162mm, and comprises a hydraulic expansion leather cup 201 and a rubber sleeve sealing element main body 202, a spring steel sheet is added into the annular rubber sleeve and integrated through high-temperature fusion welding, and a rubber core is made of high-temperature oil-resistant rubber.
The double-layer concentric working barrel 3 is of a double-layer concentric structure formed by welding two layers of pipes with different diameters, four inclined holes with the diameter of 15mm are machined at the bottommost part in the direction of 30 degrees, and liquid can cause great swirling flow impulsive force after flowing out.
After the tool is assembled and is put into a well, the tool is reversely pressed towards the oil sleeve annulus through the ground, and liquid entering the well can generate great rotational flow and impulsive force when passing through a wall clamping cavity in the tool, so that firm sand plug, paraffin and other impurities are dispersed and taken out of the ground by the aid of the returned liquid, and the flushing effect is greatly improved. Thereby improving the construction quality, reducing the cost waste and improving the working efficiency.
The working principle of the device is as follows:
tool installation: firstly, the rubber tube sealing element 2 is arranged on the outer wall of the outer pipe 304, then the outer pipe connecting inner thread 104 of the upper joint (1) and the outer pipe connecting outer thread 303 rotate forwards and are buckled, at the moment, the inner pipe connecting inner thread 102 and the inner pipe connecting outer thread 301 rotate forwards and are buckled simultaneously until the screw thread is tightened and the rubber tube sealing element 2 is pressed tightly. When the tool is assembled, a complete double-walled cavity is formed inside the tool, and liquid can circulate inside the cavity.
The principle of the tool is as follows: connecting the tool with a tubular column to about 1m above a pre-flushing well section, pumping the working fluid into the well from the oil sleeve annulus, expanding the inner wall of a sealing sleeve along the axial direction under the action of hydraulic pressure by a pump when the working fluid reaches the position of a hydraulic expansion leather cup 201, enabling the working fluid not to go down along the oil sleeve annulus, but to enter into a cavity of a sandwich wall of the tool along four fluid inlet holes 103 on an upper joint 1, enabling the working fluid to go down along the cavity of the sandwich wall, and jetting out impurities in the well through a rotational flow liquid outlet hole 306 in a rotational flow manner. After the dispersed sundries and the well entering liquid are mixed together, the mixture goes upwards along the inner cavity of the inner pipe 302 to enter the interior of the tool and flows out of the ground through the inner cavity of the connecting pipe column, and then the deep pipe column is gradually lowered until all well sections are washed clean, so that the washing work is completed. Because the flow area suddenly reduces when the working fluid flows through the tool, the flushing effect is greatly improved by generating more than four times of the thrust under the condition that the discharge capacity of the pump truck is unchanged and by the action of the rotational flow liquid outlet holes.
The tool has the characteristics that: the structure is simple, the cost is low, the work is reliable, the applicability is high, and the purposes of improving the washing construction quality, reducing the cost input and improving the work efficiency are achieved. Because the use mode of this instrument is simple effective, and the working method speed compares construction fast, efficient with in the past, and safe state and construction speed have great improvement than traditional method, and the result of use is showing. Has better economic and social benefits and popularization and use values.
Example 2:
referring to fig. 1 to 5, the present invention provides a technical solution:
circulating rotational flow washing tool in large-inclination oil well comprises:
the double-layer concentric working barrel 3 comprises an outer pipe 304 and an inner pipe 302 concentrically arranged in the outer pipe, a wall clamping cavity 307 is formed between the inner wall of the outer pipe and the outer wall of the inner pipe, and a centralizer 4 is arranged on the outer wall of the outer pipe 304;
the rubber cylinder sealing element 2 is sleeved on the outer wall of the outer pipe;
the lower port of the outer pipe is provided with a radially contracted guide head 305, the center of the guide head is provided with a center hole, the center hole of the guide head is connected with the lower port of the inner pipe into an integral structure, the radially outer end of the guide head is an arc-shaped section, the arc-shaped section is provided with an oblique cyclone liquid outlet hole 306, and the cyclone liquid outlet hole is communicated with the wall clamping cavity.
Further, the inner diameter of the centralizer is consistent with the inner diameter of the outer pipe, and the aperture of the center hole of the seeker is consistent with the inner diameter of the inner pipe.
Furthermore, at least three cyclone liquid outlet holes are formed, and the aperture of each cyclone liquid outlet hole is 15 mm; the cyclone liquid outlet holes are distributed in a vortex shape from inside to outside and are inclined downwards.
Further, a centralizer 4 is arranged on the outer wall of the outer pipe, and the centralizer is located above the guide head and below the rubber cylinder sealing element.
Furthermore, the outer wall of the outer pipe is provided with a limit ring platform for preventing the rubber sleeve sealing element from sliding downwards.
Further, still include:
the inner wall of the upper end opening of the upper joint is provided with a tubular column connecting female buckle 101, the inner wall of the lower end opening of the upper joint is provided with an outer pipe connecting inner thread 104, the inner wall of the upper joint is provided with a neck ring table, and the inner wall of the neck ring table is provided with an inner pipe connecting inner thread 102.
Further, the outer wall of the upper end of the inner pipe is provided with an inner pipe connecting external thread 301 and is connected with an inner pipe connecting internal thread 102 of the upper joint, and the outer wall of the upper end of the outer pipe is provided with an outer pipe connecting external thread 303 and is connected with an outer pipe connecting internal thread 104 of the upper joint; the upper joint is provided with a liquid inlet hole 103 which is radially communicated with the wall clamping cavity.
Example 3:
referring to fig. 1 to 5, the present invention provides a technical solution:
circulating rotational flow washing tool in large-inclination oil well comprises:
the double-layer concentric working barrel 3 comprises an outer pipe 304 and an inner pipe 302 concentrically arranged in the outer pipe, a wall clamping cavity 307 is formed between the inner wall of the outer pipe and the outer wall of the inner pipe, and a centralizer is arranged on the outer wall of the outer pipe;
the rubber cylinder sealing element 2 is sleeved on the outer wall of the outer pipe;
the lower port of the outer pipe is provided with a radially contracted guide head 305, the center of the guide head is provided with a center hole, the center hole of the guide head is connected with the lower port of the inner pipe into an integral structure, the radially outer end of the guide head is an arc-shaped section, the arc-shaped section is provided with an oblique cyclone liquid outlet hole 306, and the cyclone liquid outlet hole is communicated with the wall clamping cavity.
Further, the inner diameter of the centralizer is consistent with the inner diameter of the outer pipe, and the aperture of the center hole of the seeker is consistent with the inner diameter of the inner pipe.
Furthermore, at least three cyclone liquid outlet holes are formed, and the aperture of each cyclone liquid outlet hole is 15 mm; the cyclone liquid outlet holes are distributed in a vortex shape from inside to outside and are inclined downwards.
Further, a centralizer 4 is arranged on the outer wall of the outer pipe, and the centralizer is located above the guide head and below the rubber cylinder sealing element.
Further, still include:
the inner wall of the upper end opening of the upper joint is provided with a tubular column connecting female buckle 101, the inner wall of the lower end opening of the upper joint is provided with an outer pipe connecting inner thread 104, the inner wall of the upper joint is provided with a neck ring table, and the inner wall of the neck ring table is provided with an inner pipe connecting inner thread 102.
Further, the outer wall of the upper end of the inner pipe is provided with an inner pipe connecting external thread 301 and is connected with an inner pipe connecting internal thread 102 of the upper joint, and the outer wall of the upper end of the outer pipe is provided with an outer pipe connecting external thread 303 and is connected with an outer pipe connecting internal thread 104 of the upper joint; the upper joint is provided with a liquid inlet hole 103 which is radially communicated with the wall clamping cavity.
Example 4:
referring to fig. 1 to 5, the present invention provides a technical solution:
circulating rotational flow washing tool in large-inclination oil well comprises:
the double-layer concentric working barrel 3 comprises an outer pipe 304 and an inner pipe 302 concentrically arranged in the outer pipe, a wall clamping cavity 307 is formed between the inner wall of the outer pipe and the outer wall of the inner pipe, and a centralizer 4 is arranged on the outer wall of the outer pipe;
the rubber cylinder sealing element 2 is sleeved on the outer wall of the outer pipe;
the lower port of the outer pipe is provided with a radially contracted guide head 305, the center of the guide head is provided with a center hole, the center hole of the guide head is connected with the lower port of the inner pipe into an integral structure, the radially outer end of the guide head is an arc-shaped section, the arc-shaped section is provided with an oblique cyclone liquid outlet hole 306, and the cyclone liquid outlet hole is communicated with the wall clamping cavity.
Further, the inner diameter of the centralizer is consistent with the inner diameter of the outer pipe, and the aperture of the center hole of the seeker is consistent with the inner diameter of the inner pipe.
Furthermore, at least three cyclone liquid outlet holes are formed, and the aperture of each cyclone liquid outlet hole is 15 mm; the cyclone liquid outlet holes are distributed in a vortex shape from inside to outside and are inclined downwards.
Further, still include:
the inner wall of the upper end opening of the upper joint is provided with a tubular column connecting female buckle 101, the inner wall of the lower end opening of the upper joint is provided with an outer pipe connecting inner thread 104, the inner wall of the upper joint is provided with a neck ring table, and the inner wall of the neck ring table is provided with an inner pipe connecting inner thread 102.
Further, the outer wall of the upper end of the inner pipe is provided with an inner pipe connecting external thread 301 and is connected with an inner pipe connecting internal thread 102 of the upper joint, and the outer wall of the upper end of the outer pipe is provided with an outer pipe connecting external thread 303 and is connected with an outer pipe connecting internal thread 104 of the upper joint; the upper joint is provided with a liquid inlet hole 103 which is radially communicated with the wall clamping cavity.
Example 5:
referring to fig. 1 to 5, the present invention provides a technical solution:
circulating rotational flow washing tool in large-inclination oil well comprises:
the double-layer concentric working barrel 3 comprises an outer pipe 304 and an inner pipe 302 concentrically arranged in the outer pipe, a wall clamping cavity 307 is formed between the inner wall of the outer pipe and the outer wall of the inner pipe, and a centralizer 4 is arranged on the outer wall of the outer pipe;
the rubber cylinder sealing element 2 is sleeved on the outer wall of the outer pipe;
the lower port of the outer pipe is provided with a radially contracted guide head 305, the center of the guide head is provided with a center hole, the center hole of the guide head is connected with the lower port of the inner pipe into an integral structure, the radially outer end of the guide head is an arc-shaped section, the arc-shaped section is provided with an oblique cyclone liquid outlet hole 306, and the cyclone liquid outlet hole is communicated with the wall clamping cavity.
Further, the inner diameter of the centralizer is consistent with the inner diameter of the outer pipe, and the aperture of the center hole of the seeker is consistent with the inner diameter of the inner pipe.
Further, still include:
the inner wall of the upper end opening of the upper joint is provided with a tubular column connecting female buckle 101, the inner wall of the lower end opening of the upper joint is provided with an outer pipe connecting inner thread 104, the inner wall of the upper joint is provided with a neck ring table, and the inner wall of the neck ring table is provided with an inner pipe connecting inner thread 102.
Further, the outer wall of the upper end of the inner pipe is provided with an inner pipe connecting external thread 301 and is connected with an inner pipe connecting internal thread 102 of the upper joint, and the outer wall of the upper end of the outer pipe is provided with an outer pipe connecting external thread 303 and is connected with an outer pipe connecting internal thread 104 of the upper joint; the upper joint is provided with a liquid inlet hole 103 which is radially communicated with the wall clamping cavity.
Example 6:
referring to fig. 1 to 5, the present invention provides a technical solution:
circulating rotational flow washing tool in large-inclination oil well comprises:
the double-layer concentric working barrel 3 comprises an outer pipe 304 and an inner pipe 302 concentrically arranged in the outer pipe, a wall clamping cavity 307 is formed between the inner wall of the outer pipe and the outer wall of the inner pipe, and a centralizer 4 is arranged on the outer wall of the outer pipe;
the rubber cylinder sealing element 2 is sleeved on the outer wall of the outer pipe;
the lower port of the outer pipe is provided with a radially contracted guide head 305, the center of the guide head is provided with a center hole, the center hole of the guide head is connected with the lower port of the inner pipe into an integral structure, the radially outer end of the guide head is an arc-shaped section, the arc-shaped section is provided with an oblique cyclone liquid outlet hole 306, and the cyclone liquid outlet hole is communicated with the wall clamping cavity.
Further, still include:
the inner wall of the upper end opening of the upper joint is provided with a tubular column connecting female buckle 101, the inner wall of the lower end opening of the upper joint is provided with an outer pipe connecting inner thread 104, the inner wall of the upper joint is provided with a neck ring table, and the inner wall of the neck ring table is provided with an inner pipe connecting inner thread 102.
Further, the outer wall of the upper end of the inner pipe is provided with an inner pipe connecting external thread 301 and is connected with an inner pipe connecting internal thread 102 of the upper joint, and the outer wall of the upper end of the outer pipe is provided with an outer pipe connecting external thread 303 and is connected with an outer pipe connecting internal thread 104 of the upper joint; the upper joint is provided with a liquid inlet hole 103 which is radially communicated with the wall clamping cavity.
Although fig. 1 to 5 are used in all the above embodiments, it is obvious to those skilled in the art that separate drawings are not shown as long as the parts or structural features missing in the embodiments are removed from the drawings. 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 invention can also be achieved, so all of them are within the protection scope of the present invention.
All parts and parts which are not discussed in the present application and the connection mode of all parts and parts in the present application belong to the known technology in the technical field, and are not described again. Such as welding, threaded connections, etc.
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; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled 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 (8)
1. A high inclination oil well internal circulation swirl flow flushing tool, comprising:
the double-layer concentric working barrel comprises an outer pipe and an inner pipe concentrically arranged in the outer pipe, and a wall clamping cavity is formed between the inner wall of the outer pipe and the outer wall of the inner pipe;
the rubber cylinder sealing element is sleeved on the outer wall of the outer pipe; the device is characterized in that a centralizer is arranged on the outer wall of the outer pipe, a radially contracted seeker is arranged at the lower end port of the outer pipe, a center hole is formed in the center of the seeker, the center hole of the seeker and the lower end port of the inner pipe are connected into an integrated structure, the radially outer end of the seeker is an arc-shaped section, an inclined cyclone liquid outlet hole is formed in the arc-shaped section, and the cyclone liquid outlet hole is communicated with the wall clamping cavity.
2. The large-inclination oil well internal circulation rotational flow flushing tool is characterized in that the inner diameter of the centralizer is consistent with the inner diameter of the outer pipe, and the bore diameter of the center hole of the guide head is consistent with the inner diameter of the inner pipe.
3. The well internal circulation cyclone flushing tool for the oil well with the large inclination according to claim 1 or 2, characterized in that at least three cyclone liquid outlet holes are formed, and the diameter of each cyclone liquid outlet hole is 15 mm; the cyclone liquid outlet holes are distributed in a vortex shape from inside to outside and are inclined downwards.
4. The high slope oil well internal circulation swirl flow flushing tool of claim 1 or 2, wherein the centralizer is located above the guide head and below the rubber sleeve seal.
5. The well internal circulation rotational flow flushing tool for the oil well with the large inclination as claimed in claim 1 or 2, wherein the outer wall of the outer pipe is provided with a limit ring platform for preventing the rubber cylinder sealing element from sliding downwards.
6. The large-inclination oil well internal circulation swirl washing tool is characterized in that the rubber cylinder sealing element comprises a rubber cylinder sealing element main body and a hydraulic expansion leather cup arranged at the upper end of the rubber cylinder sealing element main body, and the hydraulic expansion leather cup and the rubber cylinder sealing element main body are of an integrated structure.
7. The high slope well circulating swirl washing tool of claim 1 or 2, further comprising:
the inner wall of the upper port of the upper joint is provided with a tubular column connecting female buckle, the inner wall of the lower port of the upper joint is provided with an outer pipe connecting inner thread, the inner wall of the upper joint is provided with a necking ring table, and the inner wall of the necking ring table is provided with an inner pipe connecting inner thread.
8. The internal circulation rotational flow washing tool for the large-inclination oil well is characterized in that an internal pipe connecting external thread is arranged on the outer wall of the upper end of the internal pipe and connected with an internal pipe connecting internal thread of the upper joint, and an external pipe connecting external thread is arranged on the outer wall of the upper end of the external pipe and connected with an external pipe connecting internal thread of the upper joint; the upper joint is provided with a liquid inlet hole which is communicated with the wall clamping cavity in the radial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020056771.3U CN211974915U (en) | 2020-01-10 | 2020-01-10 | Circulating rotational flow washing tool in large-inclination oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020056771.3U CN211974915U (en) | 2020-01-10 | 2020-01-10 | Circulating rotational flow washing tool in large-inclination oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211974915U true CN211974915U (en) | 2020-11-20 |
Family
ID=73386384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020056771.3U Active CN211974915U (en) | 2020-01-10 | 2020-01-10 | Circulating rotational flow washing tool in large-inclination oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211974915U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123739A (en) * | 2020-01-10 | 2021-07-16 | 中国石油化工股份有限公司 | Internal circulation rotational flow flushing tool for large-inclination oil well |
| CN114198036A (en) * | 2021-11-29 | 2022-03-18 | 中海石油(中国)有限公司 | Flushing head, negative pressure sand flushing device with same and use method of negative pressure sand flushing device |
-
2020
- 2020-01-10 CN CN202020056771.3U patent/CN211974915U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123739A (en) * | 2020-01-10 | 2021-07-16 | 中国石油化工股份有限公司 | Internal circulation rotational flow flushing tool for large-inclination oil well |
| CN114198036A (en) * | 2021-11-29 | 2022-03-18 | 中海石油(中国)有限公司 | Flushing head, negative pressure sand flushing device with same and use method of negative pressure sand flushing device |
| CN114198036B (en) * | 2021-11-29 | 2023-10-31 | 中海石油(中国)有限公司 | Flushing head, negative pressure sand flushing device with flushing head and use method of negative pressure sand flushing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102536142B (en) | Method for pumping and washing coal bed methane discharge well uninterruptedly | |
| CN211974915U (en) | Circulating rotational flow washing tool in large-inclination oil well | |
| CN206267815U (en) | Drilling type continuous sand flushing device | |
| CN111577163B (en) | Double-reverse-circulation continuous deslagging drilling tool | |
| CN113153156B (en) | Hydraulic combined mechanical hole repairing device and method | |
| CN201513144U (en) | Downhole reverse-circulation sand flusher for horizontal wells | |
| CN103867148A (en) | Concentric-tube pulverized coal discharging system and method for coal-bed gas well | |
| CN107676051A (en) | Coal dust device and method are dragged in a kind of coal bed gas well annular space supercharging | |
| CN220539598U (en) | Horizontal blocking well dredging device | |
| CN211819260U (en) | Sand washing process pipe column for sand-buried production oil layer of oil-water well of thickened oil block | |
| CN211230307U (en) | Continuous sand washing device and special continuous sand washing adapter | |
| CN113123739A (en) | Internal circulation rotational flow flushing tool for large-inclination oil well | |
| CN214697699U (en) | Hole repairing device for hydraulic combined machine | |
| CN213775283U (en) | Grinding and milling spiral sand washing device | |
| CN202900099U (en) | Wellhead device of concentric double-skin tubular column reverse circulation continuous flushing coal powder system | |
| CN201196045Y (en) | Down-hole jet stream decompression device | |
| CN204899858U (en) | Radial well plain type recycle valve | |
| CN112855100B (en) | Underground in-situ fixed online profile control and drive device, tubular column and method | |
| CN109519154B (en) | Tool and method for cleaning silted silt in screen pipe of horizontal well | |
| CN106761505B (en) | A kind of gaslift direct circulation drilling uses mixer | |
| CN109441402B (en) | Cleaning method and device capable of carrying out operation under pressure | |
| CN208619067U (en) | A kind of casing exterior wing annular jet flow cleaning tool | |
| CN220726251U (en) | Process pipe column for uniform injection of screen pipe completion horizontal well | |
| CN215718649U (en) | Gas-liquid co-production double-channel well-flushing tool | |
| CN221119915U (en) | Scale remover for water distributor of water injection well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |