CN204782879U - Hydraulic pressure releasing tool that can salvage - Google Patents
Hydraulic pressure releasing tool that can salvage Download PDFInfo
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- CN204782879U CN204782879U CN201520387384.7U CN201520387384U CN204782879U CN 204782879 U CN204782879 U CN 204782879U CN 201520387384 U CN201520387384 U CN 201520387384U CN 204782879 U CN204782879 U CN 204782879U
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- lock dog
- lower contact
- ratchet
- groove
- lock
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Abstract
The utility model provides a hydraulic pressure releasing tool that can salvage, is including the top connection, locking piece cover, locking piece and the lower clutch that from top to bottom distribute in proper order, top connection and locking piece cover threaded connection, locking piece cover internal connection have the pawl, the junction be provided with the shearing screw, be provided with the overvoltage protection hole on the lower clutch, the protection hole is by interiorly install rupture disk, clamp ring outside to, compress tightly the stopper in proper order, and the lower clutch has the rupture disk, the protection tubular column, and shield assembly is installed to the lower clutch ventilation breather, can filter the piece, prevents piece damage sealing washer, and hydraulic pressure is given up the part left behind and together with its instrument of connecting, can be salvaged, has realized the cyclic utilization of resource.
Description
Technical field
The utility model relates to Petroleum Down-hole Tool technical field, is exactly specifically a kind of salvageable hydraulic releasing tool.
Background technology
When exploitation of oil-gas field fixes well, tail pipe or some special tool(s)s are delivered in Oil/gas Well and are carried out work of giving up after design attitude by some technique needs feeding tubing string, make feeding tubing string and are admitted to tail pipe and special tool(s) disengagement, will send into tubing string and propose well head.The hydraulic releasing tool that present stage is conventional, desmorrhexis dish, does not have safety precautions when bottom outlet is plugged; build the pressure in pipe too high, damage instrument, and existing hydraulic releasing tool does not have barrier system; in the easy entering tool cavity of chip, and then damage sealing ring, cause instrument sealing ring damaged; there is leak case; in addition after completing operation of giving up, can also be continued to use, on can not being salvaged by the part of losing; cause the wasting of resources, increase the cost of operation.
Utility model content
In order to solve the above-mentioned defect of prior art, the utility model one provide security performance good, there is chip filtering function and salvageable hydraulic releasing tool.
The concrete technical scheme of the utility model is: comprise from top to bottom distribute successively top connection, lock dog cover, lower contact) and three forms tubular inner chamber, wherein said top connection lower end and lock dog cover upper end are threaded connection, and described lower contact movable upper end is socketed in lock dog cover lower end; Be provided with interconnective hollow piston and ratchet from top to bottom in described tubular inner chamber, described hollow piston upper end is provided with ball seat, and described ratchet external wall of upper portion is provided with the screw slots of multiple radial direction and relative fixing with lock dog cover top respectively by shear screw; The bottom radial direction of described lock dog cover is provided with multiple lock dog, and the groove that is provided with of the outer end of lock dog and lower contact inwall spacingly coordinates, the outer wall of inner and ratchet against; The ratchet outer wall being positioned at described lock dog top is provided with groove and groove two ends are provided with and stopped step; The ratchet outer wall being positioned at described lock dog upper and lower part forms cavity with lock dog cover inwall, lower contact inwall respectively, and described lower contact sidewall is provided with the spiracle of described cavity connects and installs filter screen in spiracle; The bottom sidewall of described lower contact be provided with the overvoltage protection hole of described tubular inner space in and in overvoltage protection hole, rupture disk is installed; Described lower contact inwall is provided with fishing neck.
Such scheme can be improved to further:
Described hollow piston upper shaft cross section is taper surface, and lower end and ratchet are connected by boss, groove milling and hollow piston along detent slide, and can be provided with Compress Spring by limited step between described hollow piston and ratchet.The taper surface of upper end is used as ball seat, and when the object of Compress Spring is pressurization in pipe, spring plays cushioning effect, and impact force of avoiding being rigidly connected is excessive.
Described lock dog cover outside is socketed adjustment ring by screw thread, and formed between the upper end of described adjustment ring and lock dog cover lock groove, lower end and lower contact upper end against; Installing in described lock groove can by relative with lock dog cover for the adjustment ring lock locked.In band down-hole motor and the operation of band moment of torsion, the design of above-mentioned rotary locking mechanism can prevent relative between top connection with lower contact rotation, its principle screws adjustable ring to make its lower end promote to exercise under lower contact after its inboard wall groove and lock dog closely recline, and itself and lock dog cover are locked and can not rotate again by lock by adjustment ring; Now because lock dog is arranged in lock dog cover and lock dog cover is threaded with top connection, because lower contact, lock dog cover and higher level's head are integrated with regard to compact siro spinning technology, prevent relative between top connection with lower contact rotation, larger moment of torsion can be born, in band motor and the operation of band moment of torsion, there is more significantly advantage.
Further preferably, the lock dog cover outer wall on described lock groove top is provided with radial circlip groove, and in it, double-deck back-up ring of installation spiral carries out spacing to lock.
Further preferably.Described filter screen is arranged in spiracle by the packing ring punching press cap that eases up; Described rupture disk is arranged in overvoltage protection hole by hold-down ring and compaction plug.Above-mentioned design and all adopt design for disassembly, is convenient to change and safeguard filter screen and rupture disk.
Described lock dog outer end and lower contact inwall are respectively equipped with continuous print dovetail groove, and lock dog and lower contact are connected with a joggle by dovetail groove, and the continuous dovetail groove locking effect that be combined with each other is better.
Described rupture disk is thin rounded flakes, and is the spherical of outwardly convex in the middle of it, when tubing string is met stifled, when overpressure reaches certain value, and rupture, release overpressure, pipe internal and external pressure balance, and then play protection pipe column tools.
The beneficial effects of the utility model are: compared with prior art, the salvageable hydraulic releasing tool of one of the present utility model, and lower contact, with rupture disk, protects tubing string; Lower contact spiracle is provided with screening arrangement, energy filter debris, prevents chip from damaging sealing ring; Inside is provided with Compress Spring, and in pipe, during pressurization, spring plays cushioning effect, avoids being rigidly connected; Locking device energy rotary self-locking, is applicable to down-hole motor or the operation of band moment of torsion; Hydraulic releasing by the part left behind together with its connect instrument, can be salvaged, achieve recycling of resource.
Accompanying drawing explanation
Fig. 1 is the utility model half sectional view;
Fig. 2 is the A-A sectional view in Fig. 1;
Fig. 3 is the structural representation of ratchet;
Fig. 4 is the structural representation of rupture disk;
Wherein, 1 top connection, 2 steel balls, 3 pistons, 4 Compress Springs, 5 ratchet sleeves, 6 shear screw, the double-deck back-up ring of 7 bolts, 8 locks, 9 adjustment rings, 10 ratchets, 11 lock dog covers, 12 lock dogs, 13 lower contacts, 14 buffering pressure cap, 15 packing rings, 16 filter screens, 17 compaction plug, 18 hold-down rings, 19 rupture disks, 20-25 sealing rings.
Detailed description of the invention
Fig. 1-4 is same embodiment, as Figure 1-4, a kind of salvageable hydraulic releasing tool, comprise the top connection 1 distributed successively from top to bottom, lock dog cover 11, lock dog 12 and lower contact 13, top connection 1 is threaded with lock dog cover 11, top connection 1 lower end is provided with external screw thread, lock dog cover 11 upper end is provided with internal thread, lock dog cover 11 has been threaded adjustment ring 9, adjustment ring 9 upper surface is provided with lock 8, lock 8 is fixedly mounted in the groove between lock dog cover 11 and adjustment ring 9, lock dog cover 11 is provided with circlip groove, spiral double-deck back-up ring 7 is installed in circlip groove, lock dog cover 11 is internally connected with ratchet 10 and junction is provided with shear screw 6, top connection 1 inside is provided with piston 3, piston 3 upper shaft cross section is taper surface, lower end and ratchet 10 pass through boss, groove milling connects, Compress Spring 4 is provided with between piston 3 and ratchet 10, ratchet 10 upper end outer wall is provided with ratchet sleeve 5, ratchet 10 upper wall respectively with lower contact 13 inwall, lock dog cover 11 inwall forms cavity, ratchet 10 intermediate lands place is provided with lock dog 12, lock dog 12 is connected with lower contact 13, spiracle is provided with bottom lower contact 13, spiracle is provided with filter screen 16 from inside to outside successively, packing ring 15, buffering pressure cap 14, lower contact 13 is provided with overvoltage protection hole, protective hole is provided with rupture disk 19 from inside to outside successively, hold-down ring 18, compaction plug 17.
When downhole tool pipe string in operation meets card, steel ball 2 is dropped into from coiled tubing, steel ball 2 drops on the upper conical surface of piston 3, then pressurize in coiled tubing, because piston 3 conical surface blocked by steel ball 2, so build the pressure rapidly in pipe, when pressure reaches certain value, steel ball 2 promotes piston 3 and then compression Compress Spring 4, Compress Spring 4 promotes ratchet 10 and advances, until the end contact of the screw slots of ratchet 10 is to shear screw 6, ratchet 10 temporarily halts, now pressure continues to rise, when overpressure value reaches the shear force of shear screw 6, shear screw 6 is cut off, now steel ball 2, piston 3 is together with Compress Spring 4, ratchet 10 falls rapidly, when lock dog 12 is in the thin neck of ratchet 10 (i.e. the ratchet outer wall on lock dog top be provided with groove), lock dog 12 and lower contact 13 are thrown off, but still on lock dog cover 11, when ratchet 10 stopping step and touching lock dog 12, ratchet 10 is stuck, now lower contact 13 and hydraulic releasing upper part are thrown off, upper lifting pipe post, top connection 1, lock dog cover 11 is together with lock dog 12, adjustment ring 9, ratchet 10, piston 3 together with tubing string by upper body, lower contact 13 and being left behind with lower part, thus realize the function of hydraulic releasing, lower contact 13 inwall is provided with the fishing neck of standard, can be salvaged by fishing spear.
The thin neck upper end of ratchet 10 has stopped step, thus reach lock dog 12 pairs of ratchets 10 and carry out spacing object, the double-deck back-up ring 7 of spiral is helical structure, be fixed in lock dog cover 11 circlip groove, thus spacing object is carried out to lock, lower contact 13 has overvoltage protection hole, in this hole, rupture disk 19 is installed from inside to outside, hold-down ring 18, compaction plug 17, rupture disk 19 is thin rounded flakes, middle outwardly convex is spherical, when tubing string is met stifled, when overpressure reaches certain value, rupture disk 19 breaks, release overpressure, pipe internal and external pressure balance, and then play protection pipe column tools, lock 8 is fixed in the groove between lock dog cover 11 and adjustment ring 9, prevent relative between top connection 1 with lower contact 13 rotation, and then formation rotary locking mechanism, larger moment of torsion can be born, in band motor and the operation of band moment of torsion, there is more significantly advantage.
Above-mentioned detailed description of the invention is only concrete case of the present utility model; scope of patent protection of the present utility model includes but not limited to product form and the style of above-mentioned detailed description of the invention; any meet the utility model claims a kind of salvageable hydraulic releasing tool and any person of an ordinary skill in the technical field to its suitable change done or modification, all should fall into scope of patent protection of the present utility model.
Claims (7)
1. a salvageable hydraulic releasing tool, it is characterized in that: comprise from top to bottom distribute successively top connection (1), lock dog cover (11), lower contact (13) and three forms tubular inner chamber, wherein said top connection (1) lower end and lock dog cover (11) upper end are threaded connection, and described lower contact (13) movable upper end is socketed in lock dog cover (11) lower end; Interconnective hollow piston (2) and ratchet (10) is provided with from top to bottom in described tubular inner chamber, described hollow piston (2) upper end is provided with ball seat, and described ratchet (10) external wall of upper portion is provided with the screw slots of multiple radial direction and relative fixing with lock dog cover (11) top respectively by shear screw (6); The bottom radial direction of described lock dog cover (11) is provided with multiple lock dog (12), and the groove that is provided with of the outer end of lock dog (12) and lower contact (13) inwall spacingly coordinates, the outer wall of inner and ratchet (10) against; Ratchet (10) outer wall being positioned at described lock dog (12) top is provided with groove and groove two ends are provided with and stopped step; The ratchet outer wall being positioned at described lock dog upper and lower part forms cavity with lock dog cover (11) inwall, lower contact (13) inwall respectively, and described lower contact (13) sidewall is provided with the spiracle of described cavity connects and installs filter screen (16) in spiracle; The bottom sidewall of described lower contact (13) be provided with the overvoltage protection hole of described tubular inner space in and rupture disk (19) is installed in overvoltage protection hole; Described lower contact inwall is provided with fishing neck.
2. salvageable hydraulic releasing tool according to claim 1, it is characterized in that: described hollow piston (2) upper shaft cross section is taper surface, lower end and ratchet (10) are connected by boss, groove milling and hollow piston (2) can slide along ratchet (10), and between described hollow piston (2) and ratchet (10), limited step are provided with Compress Spring (4).
3. salvageable hydraulic releasing tool according to claim 1, it is characterized in that: described lock dog cover (11) outside is socketed adjustment ring (9) by screw thread, and formed between the upper end of described adjustment ring (9) and lock dog cover (11) lock groove, lower end and lower contact upper end against; Installing in described lock groove can by the lock (8) of relative with lock dog cover (11) for adjustment ring (9) locking.
4. salvageable hydraulic releasing tool according to claim 3, is characterized in that: lock dog cover (11) outer wall on described lock groove top is provided with radial circlip groove, and in it, double-deck back-up ring (7) of installation spiral is carried out spacing to lock (8).
5. salvageable hydraulic releasing tool according to claim 1, is characterized in that: described filter screen (16) is arranged in spiracle by the gentle punching press cap (14) of packing ring (15); Described rupture disk (19) is arranged in overvoltage protection hole by hold-down ring (18) and compaction plug (17).
6. salvageable hydraulic releasing tool according to claim 1, is characterized in that: described lock dog (12) outer end and lower contact (13) inwall are respectively equipped with continuous print dovetail groove, and lock dog (12) and lower contact (13) are connected with a joggle by dovetail groove.
7. salvageable hydraulic releasing tool according to claim 1, is characterized in that: described rupture disk (19) is thin rounded flakes, and is the spherical of outwardly convex in the middle of it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520387384.7U CN204782879U (en) | 2015-06-08 | 2015-06-08 | Hydraulic pressure releasing tool that can salvage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520387384.7U CN204782879U (en) | 2015-06-08 | 2015-06-08 | Hydraulic pressure releasing tool that can salvage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204782879U true CN204782879U (en) | 2015-11-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520387384.7U Active CN204782879U (en) | 2015-06-08 | 2015-06-08 | Hydraulic pressure releasing tool that can salvage |
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| CN (1) | CN204782879U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387006A (en) * | 2017-07-03 | 2017-11-24 | 中国石油集团渤海钻探工程有限公司 | Running tool and the large diameter hanger for being provided with the running tool |
| CN109098678A (en) * | 2018-10-19 | 2018-12-28 | 中石化江汉石油工程有限公司 | Releasing pup joint for horizontal well conveying tractor perforation tool |
| CN110043209A (en) * | 2019-05-28 | 2019-07-23 | 成都阿斯贝瑞科技有限公司 | A kind of novel hydraulic releasing tool |
| CN112610183A (en) * | 2020-12-23 | 2021-04-06 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | Pressure self-balancing double-barrier plug for pressurized well completion of high-pressure gas well |
-
2015
- 2015-06-08 CN CN201520387384.7U patent/CN204782879U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387006A (en) * | 2017-07-03 | 2017-11-24 | 中国石油集团渤海钻探工程有限公司 | Running tool and the large diameter hanger for being provided with the running tool |
| CN109098678A (en) * | 2018-10-19 | 2018-12-28 | 中石化江汉石油工程有限公司 | Releasing pup joint for horizontal well conveying tractor perforation tool |
| CN109098678B (en) * | 2018-10-19 | 2024-01-26 | 中石化江汉石油工程有限公司 | Releasing nipple for horizontal well conveying tractor perforating tool |
| CN110043209A (en) * | 2019-05-28 | 2019-07-23 | 成都阿斯贝瑞科技有限公司 | A kind of novel hydraulic releasing tool |
| CN112610183A (en) * | 2020-12-23 | 2021-04-06 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | Pressure self-balancing double-barrier plug for pressurized well completion of high-pressure gas well |
| CN112610183B (en) * | 2020-12-23 | 2022-11-11 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | Pressure self-balancing double-barrier plug for pressurized well completion of high-pressure gas well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |