CN204984363U - Well logging drifting ware - Google Patents
Well logging drifting ware Download PDFInfo
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- CN204984363U CN204984363U CN201520694663.8U CN201520694663U CN204984363U CN 204984363 U CN204984363 U CN 204984363U CN 201520694663 U CN201520694663 U CN 201520694663U CN 204984363 U CN204984363 U CN 204984363U
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- spiral
- scraping
- centralizer
- rubber
- well logging
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Abstract
The utility model relates to a well logging drifting ware. Scrape guide shoe, abrasive rubber sweeper, main scrape spiral centralizer and flexible rubber spiral restoration centralizer including the spiral that connects gradually from bottom to top, the spiral is scraped the guide shoe and is the toper structure, and the hoop equipartition is provided with a plurality of spiral flowing channel grooves, the abrasive rubber sweeper includes the base member and follows the convex a plurality of rubber column of base member surface, the main spiral centralizer of scraping: including 12 -18 helical angle runner groove to and the scraping wing that forms, the centralizer is restoreed to flexible rubber spiral: maintain wall of a well fin including a plurality of, maintain wall of a well fin and be screw set. The utility model discloses the outer terminal surface rivet welding tungsten carbide cobalt alloy of centralizer has guarantor footpath function, reduces wearing and tearing, improves the tool using number of times, and each is scraped the wing and applies the YD type that has welded carbide, scrapes the ability reinforce, and the wear rate is low, rubber materials is for subtracting the special high strength hydrogenation butadiene acrylonitrile rubber of the instrument of turning round, and intensity is high, and the wearability is good, can bear 150 DEG C of high temperature.
Description
Technical field
The utility model relates to a kind of well logging drifting device, is applied to oilfield technology field.
Background technology
In the various constructions such as oil gas field production and development and underground work, because pipe string in well causes pit shaft latus rectum to diminish or pit shaft blocks by squeezing distortion, formation sand production, well killing fluid precipitation etc., for this type of situation, in order to Accurate Diagnosis pit shaft actual conditions, need to carry out coiled tubing drifting operation, especially for the blockage problem of Oil/gas Well with pressure, coiled tubing is adopted to carry out drifting more common to understand stopping state in well.
There are problems in the coiled tubing drifting instrument of existing routine, because coiled tubing to enter after well substantially all helically Curved, totally place, the irregular place of step chamfering, undergauge reducing position etc. are not put to occur transferring and are hampered at the borehole wall easily to cause drifting instrument, both difficulty was caused to drifting, also easily cause the illusion that drifting is hampered, cannot effectively implement drifting operation, cause the actual conditions being difficult to accurately grasp pit shaft.
Utility model content
The utility model is for above-mentioned defect, and it is simple that object is to provide a kind of structure, well can carry out the well logging drifting device of drifting operation to oil field.
The technical solution adopted in the utility model is for this reason: the utility model comprises the spiral scraping guide shoe (1), abrasive rubber sweeper (2), main scraping spiral centering device (3) and the flexible rubber spiral that connect successively from bottom to top and repairs centralizer (4);
The tapered structure of described spiral scraping guide shoe (1), hoop is uniform is provided with some helical flow path grooves (11);
Some rubber columns (22) that described abrasive rubber sweeper (2) comprises matrix (21) and protrudes from matrix (21) external surface;
Described main scraping spiral centering device (3): comprise 12-18 ° of helical angle flow path groove (31), and the scraping wing (32) formed;
Centralizer (4) repaired by described flexible rubber spiral: comprise several finishings borehole wall fin (41), finishing borehole wall fin (41) is helically arranged.
Described matrix (21) external surface protrudes and arranges four groups, 12 abrasive rubber posts (22).
The described scraping wing (32), finishing borehole wall fin (41) wrap design entirely.
Described main scraping spiral centering device (3), flexible rubber spiral repair centralizer (4) outer face rivet welding Wc-Co alloys YG8.
The described scraping wing (32), finishing borehole wall fin (41) outer face surfacing have YD type carbide alloy.
Between the joint of described spiral scraping guide shoe (1) and main scraping spiral centering device (3), heavy weight drill pipe or drill collar are installed.
The utility model has the advantages that: 1) centralizer outer face rivet welding Wc-Co alloys (YG8), has gauge function, reduce wearing and tearing, improve instrument access times, each scraping wing surfacing has YD type carbide alloy, and scraping ability is strong, and wear rate is low; Elastomeric material turns round instrument Special high-strength hydrogenated nitrile-butadiene rubber for subtracting, intensity high (hot strength is 39MPa), and abrasion resistance good (abrasion 0.003cm3/1.61km), can bear 150 DEG C of high temperature; 2) between scraping guide shoe and main scraping spiral centering device joint, heavy weight drill pipe or drill collar are installed, instrument rigidity can be reduced, the handling capacity of the further hoisting tool of energy; 3) scraping of full-enclosed spiral and the design of finishing centralizer, under non-rotating lower driller's condition, also can realize the scraping to the borehole wall and finishing, significantly improve drifting efficiency; 4) the split type modular design of the utility model, rigidity is adjustable, and consumable accessory is convenient for changing, and cost is low, uses flexibly, easy to utilize.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure 1 for spiral scraping guide shoe, 2 for abrasive rubber sweeper, 3 be main scraping spiral centering device, 4 for flexible rubber spiral reparation centralizer;
11 be helical flow path groove, 21 be matrix, 22 be rubber column, 31 be flow path groove, 32 be the scraping wing, 41 for whole borehole wall fin.
Detailed description of the invention
The utility model comprises the spiral scraping guide shoe 1, abrasive rubber sweeper 2, main scraping spiral centering device 3 and the flexible rubber spiral that connect successively from bottom to top and repairs centralizer 4;
The tapered structure of described spiral scraping guide shoe 1, hoop is uniform is provided with some helical flow path grooves 11;
Some rubber columns 22 that described abrasive rubber sweeper 2 comprises matrix 21 and protrudes from matrix 21 external surface;
Described main scraping spiral centering device 3: comprise 12-18 ° of helical angle flow path groove 31, and the scraping wing 32 formed;
Centralizer 4 repaired by described flexible rubber spiral: comprise several finishing borehole wall fins 41, finishing borehole wall fin 41 is helically arranged.
Described matrix 21 external surface protrudes and arranges four groups, 12 abrasive rubber posts 22.
The described scraping wing 32, finishing borehole wall fin 41 wrap design entirely.
Centralizer 4 outer face rivet welding Wc-Co alloys YG8 repaired by described main scraping spiral centering device 3, flexible rubber spiral.
The described scraping wing 32, finishing borehole wall fin 41 outer face surfacing have YD type carbide alloy.
Between the joint of described spiral scraping guide shoe 1 and main scraping spiral centering device 3, heavy weight drill pipe or drill collar are installed.
Concrete functional performance of the present utility model is as follows:
1. cone-type spiral scraping guide shoe 1: pyramidal structure, helical flow path groove, Φ 215.9mm meet the eye on every side; 4 Φ 17mm hydrophthalmias;
2. abrasive rubber sweeper 2: Φ 260mm external diameter 4 groups of 12 abrasive rubber posts (amplification degree 20%);
3. main scraping spiral centering device 3: Φ 215mm external diameter, 15 ° of helical angle flow path grooves, 6 scraping wings wrap design entirely, and non-rotating lower brill still has slight scraping borehole wall ability;
4. centralizer 4: Φ 216mm external diameter repaired by flexible rubber spiral, and 5 finishing borehole wall fins wrap entirely, deformable, and non-rotating lower brill still can repair the borehole wall comprehensively, narrow fin, large external diameter, and flow velocity is higher, not easily mud drum;
During the utility model running speed 18m/min, runner peak flow rate (PFR) is 0.8m/s, can effectively cutting carring and mud cake, prevents mud drum; Discharge capacity 30L/s circulates, and runner stream scooter 2.4m/s, is in High Speed Turbulent state, has and well removes landwaste effect; Discharge capacity 30L/s circulates, and during rotating speed 1r/s, velocity core moves to little annular space place, and landwaste elimination effect significantly improves.
In hole enlargement ratio 10% situation, the additional 10.5t thrust of original-pack instrument (maximum rigidity) can smoothly by the well of 5 °/30m hole curvature;
Under 5 °/30m curvature well bending condition, joint stress level only slightly improves than upper buckle-like state, and joint still meets requirement of strength, and has larger safety factor; Under 5 °/30m curvature well bending condition, joint step end face uniform force, sealing performance is unaffected
Well logging drifting device field trial:
Three sections of systems: test result: well logging one-time success rate improves 10.2%;
Five sections of systems: test result: well logging one-time success rate improves 9.6%;
Horizontal well: test result: well logging one-time success rate improves 9.2%.
Claims (6)
1. well logging drifting device, is characterized in that, comprises the spiral scraping guide shoe (1), abrasive rubber sweeper (2), main scraping spiral centering device (3) and the flexible rubber spiral that connect successively from bottom to top and repairs centralizer (4);
The tapered structure of described spiral scraping guide shoe (1), hoop is uniform is provided with some helical flow path grooves (11);
Some rubber columns (22) that described abrasive rubber sweeper (2) comprises matrix (21) and protrudes from matrix (21) external surface;
Described main scraping spiral centering device (3): comprise 12-18 ° of helical angle flow path groove (31), and the scraping wing (32) formed;
Centralizer (4) repaired by described flexible rubber spiral: comprise several finishings borehole wall fin (41), finishing borehole wall fin (41) is helically arranged.
2. well logging drifting device according to claim 1, is characterized in that, described matrix (21) external surface protrudes and arranges four groups, 12 abrasive rubber posts (22).
3. well logging drifting device according to claim 1, is characterized in that, the described scraping wing (32), finishing borehole wall fin (41) wrap design entirely.
4. well logging drifting device according to claim 1, is characterized in that, described main scraping spiral centering device (3), flexible rubber spiral repair centralizer (4) outer face rivet welding Wc-Co alloys YG8.
5. well logging drifting device according to claim 1, is characterized in that, the described scraping wing (32), finishing borehole wall fin (41) outer face surfacing have YD type carbide alloy.
6. well logging drifting device according to claim 1, is characterized in that, installs heavy weight drill pipe or drill collar between the joint of described spiral scraping guide shoe (1) and main scraping spiral centering device (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520694663.8U CN204984363U (en) | 2015-09-09 | 2015-09-09 | Well logging drifting ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520694663.8U CN204984363U (en) | 2015-09-09 | 2015-09-09 | Well logging drifting ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204984363U true CN204984363U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520694663.8U Active CN204984363U (en) | 2015-09-09 | 2015-09-09 | Well logging drifting ware |
Country Status (1)
| Country | Link |
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| CN (1) | CN204984363U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958289A (en) * | 2017-05-08 | 2017-07-18 | 苏州标杆知识产权运营有限公司 | Dredger for cleaning sewer |
-
2015
- 2015-09-09 CN CN201520694663.8U patent/CN204984363U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958289A (en) * | 2017-05-08 | 2017-07-18 | 苏州标杆知识产权运营有限公司 | Dredger for cleaning sewer |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |