CN220769411U - Reverse circulation salvaging device for directional well - Google Patents
Reverse circulation salvaging device for directional well Download PDFInfo
- Publication number
- CN220769411U CN220769411U CN202321522659.4U CN202321522659U CN220769411U CN 220769411 U CN220769411 U CN 220769411U CN 202321522659 U CN202321522659 U CN 202321522659U CN 220769411 U CN220769411 U CN 220769411U
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- reverse circulation
- directional well
- baffles
- barrel
- 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
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 238000007790 scraping Methods 0.000 claims abstract description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 8
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 8
- 241001330002 Bambuseae Species 0.000 claims description 8
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 8
- 239000011425 bamboo Substances 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 2
- 238000011010 flushing procedure Methods 0.000 abstract description 12
- 239000003129 oil well Substances 0.000 abstract description 7
- 239000012535 impurity Substances 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000012634 fragment Substances 0.000 abstract description 3
- 239000004568 cement Substances 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 8
- 239000012530 fluid Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses a reverse circulation salvaging device for a directional well, which comprises a cylinder body, wherein the upper end of the cylinder body is fixedly connected with an upper connecting piece, the position, inside the cylinder body, of the lower end of the upper connecting piece is fixedly connected with a conical cylinder, the upper end of the outer side of the conical cylinder is provided with a plurality of filtering holes, and the lower end of the outer side of the conical cylinder is fixedly connected with a plurality of stop rods. In the utility model, the scraping ring at the lower end of the cylinder body can hang residues, fragments and blocky cements on the inner wall of the oil well sleeve when the pipe column is put into the oil well sleeve through the upper connecting piece, and when flushing, liquid flow lifts up the plurality of baffles to compress the springs, the impurities are isolated at the lower end of the conical cylinder through the filtering of the stop lever and the filtering holes, so that the flushing is smoothly carried out, and after the flushing is finished, the springs drive the baffles to be pressed down, so that the impurities can be prevented from falling into the well, and the impurities are brought out of the ground after the pipe column is lifted out.
Description
Technical Field
The utility model relates to the technical field of fishing devices, in particular to a directional well reverse circulation fishing device.
Background
The directional well is a well which deviates from the vertical line of the wellhead by a certain distance in a given direction according to artificial requirements, the directional well technology is one of the most advanced drilling technologies in the field of oil exploration and development in the world today, and is a drilling technology which effectively controls the track of a well hole by special downhole tools, measuring instruments and process technologies, so that a drill bit can reach a preset underground target along a specific direction.
Chinese patent publication No. CN1587636B discloses a full well reverse circulation salvaging process and a mating device for salvaging down-hole junk. The method mainly uses compressed air as power to establish a whole well reverse fluid circulation system, so that well bottom junk is pumped into a salvaging basket along with the reverse fluid circulation of drilling fluid and salvaged to the ground. Is characterized in that: the adopted salvaging drill string is sequentially connected with a water tap, a double-layer gas injection joint, a double-wall drill rod, a gas mixer, a drill rod and a salvaging basket from top to bottom. Compressed air enters the drill rod through the high-pressure air inlet hose, the double-layer air injection joint, the double-wall drill rod and the air mixer. And (3) establishing drilling fluid reverse circulation, and fishing the well bottom junk. The beneficial effects are that: the method for effectively salvaging the junk at the bottom of the well is provided; the density of the drilling fluid is reduced, the pressure of the drilling fluid on the stratum is reduced, and the pollution of the drilling fluid on the oil layer is reduced.
The existing reverse circulation fishing device cannot separate and collect sundries in drilling fluid.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides a directional well reverse circulation salvaging device.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a directional well reverse circulation fishing device, includes the barrel, the upper end fixedly connected with of barrel goes up the connecting piece, the inside of barrel is located the position fixedly connected with toper section of thick bamboo of last connecting piece lower extreme, a plurality of filtration pores have been seted up to the outside upper end of toper section of thick bamboo, the outside lower extreme fixedly connected with a plurality of pin of toper section of thick bamboo, the lower extreme fixedly connected with connecting rod of toper section of thick bamboo, the lower extreme fixedly connected with toper stopper of connecting rod, the inside of barrel is located the position fixedly connected with spacing subassembly of connecting rod lower extreme.
Further, a scraping ring is arranged at the lower end of the cylinder body.
Further, the limiting component comprises a connecting frame, and the lower end of the connecting frame is fixedly connected with a connecting cylinder.
Further, a plurality of baffles are distributed on the inner circumference of the connecting frame, and one ends of the baffles are rotationally connected with the connecting frame.
Further, the upper end of the connecting frame is vertically and fixedly connected with a plurality of fixing plates, and the upper ends of the inner sides of the fixing plates are fixedly connected with springs.
Further, the lower ends of the springs are fixedly connected with the upper ends of the corresponding baffles respectively.
The utility model has the beneficial effects that:
when the directional well reverse circulation fishing device is used, the directional well reverse circulation fishing device can be connected to the lowest end of a pipe column through the upper connecting piece, when the pipe column is put into an oil well casing, residues, fragments and blocky cements on the inner wall of the oil well casing can be hung by the scraping ring at the lower end of the cylinder body, when flushing is carried out, a plurality of baffles are jacked up by liquid flow, a spring is compressed, sundries are isolated at the lower end of the conical cylinder through filtration of the baffle rod and the filter holes, flushing is guaranteed to be carried out smoothly, after flushing is finished, the spring drives the baffles to be pressed down, sundries can be prevented from falling into a well, and after the pipe column is pulled out, sundries are brought out of the ground.
Drawings
In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description of the specific embodiments will be briefly described below, it being obvious that the drawings in the following description are only some examples of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1: a front view of the present utility model;
fig. 2: the internal structure of the cylinder body is schematically shown;
fig. 3: the conical limiting block mounting structure is schematically shown;
fig. 4: the limiting assembly structure of the utility model is schematically shown.
The reference numerals are as follows:
1. a cylinder; 2. an upper connecting piece; 3. a scraping ring; 4. a conical cylinder; 5. filtering holes; 6. a stop lever; 7. a connecting rod; 8. a limit component; 9. a conical limiting block; 10. a connection frame; 11. a connecting cylinder; 12. a baffle; 13. a fixing plate; 14. and (3) a spring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-4, the reverse circulation fishing device for the directional well comprises a barrel 1, wherein the upper end of the barrel 1 is fixedly connected with an upper connecting piece 2, the inside of the barrel 1 is fixedly connected with a conical barrel 4 at the lower end of the upper connecting piece 2, a plurality of filtering holes 5 are formed in the upper end of the outer side of the conical barrel 4, a plurality of stop rods 6 are fixedly connected with the lower end of the outer side of the conical barrel 4, a connecting rod 7 is fixedly connected with the lower end of the conical barrel 4, a conical limiting block 9 is fixedly connected with the lower end of the connecting rod 7, the arranged conical limiting block 9 can play a role in limiting and sealing a plurality of baffles 12, and a limiting component 8 is fixedly connected with the position of the inside of the barrel 1 at the lower end of the connecting rod 7.
As shown in fig. 1-4, the lower end of the cylinder 1 is provided with a scraping ring 3, and the scraping ring 3 at the lower end of the cylinder 1 can hang up residues, fragments and blocky cementing matters on the inner wall of the oil well casing.
As shown in fig. 1-4, the limiting component 8 comprises a connecting frame 10, the lower end of the connecting frame 10 is fixedly connected with a connecting cylinder 11, a plurality of baffles 12 are distributed on the inner circumference of the connecting frame 10, one end of each baffle 12 is rotatably connected with the connecting frame 10, a plurality of fixing plates 13 are vertically and fixedly connected with the upper end of the connecting frame 10, springs 14 are fixedly connected with the upper ends of the inner sides of the fixing plates 13, the lower ends of the springs 14 are fixedly connected with the upper ends of the corresponding baffles 12 respectively, when flushing is carried out, liquid flow jacks up the baffles 12, the springs 14 are compressed, sundries are isolated at the lower end of the conical cylinder 4 through filtering of the blocking rods 6 and the filtering holes 5, smooth flushing is ensured, after flushing is finished, the springs 14 drive the baffles 12 to be pressed down, the sundries can be prevented from falling into a well, and the sundries are brought out of the ground after the pipe column is lifted.
Working principle: when the device is used, the device can be connected to the lowest end of the pipe column through the upper connecting piece 2, when the pipe column is put into the oil well casing, the scraping ring 3 at the lower end of the cylinder body 1 can hang residues, scraps and blocky cementing matters on the inner wall of the oil well casing, when the device is used for flushing, liquid flow jacks up the baffle plates 12, the spring 14 is compressed, impurities are isolated at the lower end of the conical cylinder 4 through the filtering of the stop lever 6 and the filtering hole 5, the flushing is ensured to be smoothly carried out, after the flushing is finished, the spring 14 drives the baffle plates 12 to be pressed down, the impurities can be prevented from falling into the well, and after the pipe column is lifted out, the impurities are brought out of the ground.
The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.
Claims (6)
1. Reverse circulation fishing device of directional well, including barrel (1), its characterized in that: the utility model discloses a high-pressure filter is characterized in that the upper end fixedly connected with of barrel (1) goes up connecting piece (2), the inside of barrel (1) is located the position fixedly connected with toper section of thick bamboo (4) of last connecting piece (2) lower extreme, a plurality of filtration pore (5) have been seted up to the outside upper end of toper section of thick bamboo (4), the outside lower extreme fixedly connected with of toper section of thick bamboo (4) a plurality of pin (6), the lower extreme fixedly connected with connecting rod (7) of toper section of thick bamboo (4), the lower extreme fixedly connected with toper stopper (9) of connecting rod (7), the inside of barrel (1) is located the position fixedly connected with spacing subassembly (8) of connecting rod (7) lower extreme.
2. The directional well reverse circulation fishing apparatus of claim 1, wherein: the lower end of the cylinder body (1) is provided with a scraping ring (3).
3. The directional well reverse circulation fishing apparatus of claim 1, wherein: the limiting assembly (8) comprises a connecting frame (10), and the lower end of the connecting frame (10) is fixedly connected with a connecting cylinder (11).
4. A directional well reverse circulation fishing apparatus as defined in claim 3, wherein: a plurality of baffles (12) are distributed on the inner circumference of the connecting frame (10), and one ends of the baffles (12) are rotationally connected with the connecting frame (10).
5. The directional well reverse circulation fishing apparatus as defined in claim 4, wherein: the upper end of the connecting frame (10) is vertically and fixedly connected with a plurality of fixing plates (13), and the upper ends of the inner sides of the fixing plates (13) are fixedly connected with springs (14).
6. The directional well reverse circulation fishing apparatus of claim 5, wherein: the lower ends of the springs (14) are fixedly connected with the upper ends of the corresponding baffles (12) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321522659.4U CN220769411U (en) | 2023-06-15 | 2023-06-15 | Reverse circulation salvaging device for directional well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321522659.4U CN220769411U (en) | 2023-06-15 | 2023-06-15 | Reverse circulation salvaging device for directional well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220769411U true CN220769411U (en) | 2024-04-12 |
Family
ID=90621717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321522659.4U Active CN220769411U (en) | 2023-06-15 | 2023-06-15 | Reverse circulation salvaging device for directional well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220769411U (en) |
-
2023
- 2023-06-15 CN CN202321522659.4U patent/CN220769411U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU84048U1 (en) | BOREHOLESS COMPLEX FOR CARRYING OUT WASHLESS TECHNOLOGY | |
| CN100538003C (en) | The expansion sieve tube hanging method | |
| CN110439524A (en) | The refracturing remodeling method of oil/gas well | |
| CN202381036U (en) | Suspension type squeezing bridge plug | |
| CN220769411U (en) | Reverse circulation salvaging device for directional well | |
| CN201730822U (en) | Novel torque transmission bailing pump | |
| CN116816308A (en) | Oil-free pipe paraffin removal lifting device for small-bore shale oil well | |
| CN103790529A (en) | Coalbed methane drainage extraction and backwashing device and method | |
| RU2002116974A (en) | A method of producing liquid and gas from a well and a sucker rod pump for its implementation | |
| CN202064862U (en) | Continuous sand washing device of immobile well head | |
| RU2188301C1 (en) | Method of preparation and performance of well servicing | |
| CN2874015Y (en) | Internal slip-type oil drain device | |
| CN112814630A (en) | Soluble sieve tube and using method thereof | |
| RU2453676C1 (en) | Device for cleaning walls of production string and bottom hole | |
| CN219587561U (en) | Integrated gas sand double-prevention device | |
| CN205778792U (en) | A kind of casing-head gas well array hydromining trachea post | |
| CN117307097B (en) | Offshore platform continuous capillary steel pipe oil pipe passing descaling device and use method | |
| CN112943169B (en) | Positive circulation gas injection, drainage and gas production system for small-diameter oil pipe | |
| CN111021999B (en) | Liquid drainage and gas production integrated pipe column | |
| CN220203873U (en) | Layering water finding production integrated tubular column | |
| CN203430487U (en) | Device for recovering and enabling oil well casing gas to enter oil return pipeline with low casing pressure | |
| CN212508161U (en) | Sand collector for well workover reverse circulation sand removal | |
| CN110700777B (en) | System and method for flushing coal ash in coal-bed gas well by using nitrogen foam flushing fluid | |
| CN216517938U (en) | Self-filling sand-proof wax-proof extract production tool | |
| CN209908470U (en) | Horizontal well sand control tubular column running auxiliary device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |