CN2491654Y - Self-locking sealer for oil well - Google Patents
Self-locking sealer for oil well Download PDFInfo
- Publication number
- CN2491654Y CN2491654Y CN 01240461 CN01240461U CN2491654Y CN 2491654 Y CN2491654 Y CN 2491654Y CN 01240461 CN01240461 CN 01240461 CN 01240461 U CN01240461 U CN 01240461U CN 2491654 Y CN2491654 Y CN 2491654Y
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- China
- Prior art keywords
- locking
- overcoat
- spring
- sleeve
- rotation
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a self-locking style sealing machine for an oil well. The sealing machine comprises a seat-sealing control part and a self-locking style locating part, wherein the seat-sealing control part is composes of an upper central sleeve, a leather cup locking-paw, a connecting sleeve and leather cup fixed on the upper central sleeve and the connecting sleeve, the self-locking style locating part is composed of a locating detent, a connecting rod, a sliding block, a spring, a stub, a locating pin, an outer sleeve, a closing piece, a torsion spring, a thimble, a locking awl, a center shaft, a rotating body, an upper center connecting rod and a pin of the locating detent. The utility model uses a sliding and shifting space arranged between the rotating body and the locating pin to control the locating detent to in an operation state from opening to gathering to gathering, thereby the utility model can realize zonal water injection, interception and sealing, and measuring of water injection layers arranged in arbitrary positions of an oil well.
Description
The utility model relates to a kind of oil field seal section, specifically a kind of oil well self-locking sealer.
At present, the using process of the seal section that generally adopts in the oil field is: before instrument is being gone into the well, make the seal section positioning pawl be in rounding state, carry instrument on after instrument is transferred to a certain water distribution layer for the treatment of operation, because action of cam is opened positioning pawl, transfer instrument then, positioning pawl is positioned on the boss of water distributor, carries out the water filling operation after the seal ring above making is in sealing station, after instrument work is finished, instrument must all propose well head, by manually positioning pawl being resetted.If after certain water filling layer operation is finished, one deck carries out the water filling operation to want to continue to give down, because positioning pawl can not reset, causes instrument can not continue to transferring.Therefore the water filling operation must be undertaken by order from bottom to top.
The purpose of this utility model at the problem that exists on the existing seal section structure, provides a kind of oil well self-locking sealer that can carry out the water filling operation at any time on any aspect exactly.
To achieve these goals, the technological scheme that the utility model is taked is: the sealing device comprises a connecting sleeve 4 that has water injection hole, one of suit slidably and have a last central sleeve 1 of water injection hole in the connecting sleeve 4, leather cup 3 is housed on the wall of connecting sleeve 4, leather cup sheath 2 is housed on the leather cup 3, the inside of overcoat 10 1 ends is contained in the leather cup locking card 22 on the central sleeve 1 in addition, the big end of last center rod 19 is equipped with the central shaft 17 that an end has blind hole successively, spring 16, and in the overcoat 10 of packing into together, the position that overcoat 10 is positioned at solid of rotation 18 is provided with locating stud 9, spring 15 also is housed in the blind hole of central shaft 17, spring 15 is pushed down by locking cone 14 and lock dog 11 that torsion spring 12 is housed, overcoat 10 1 ends are equipped with thimble 13, be characterized in: the end at overcoat 10 is connected with positioning pawl 5 by location pawl pin 21, the middle part of positioning pawl 5 connects connecting rod 6, after linking to each other with slide block 7, the other end of connecting rod 6 encircles 8 with shelves, spring 20 together is enclosed within on the small end of last center rod 19 of convex, and the solid of rotation 18 of ring-type also is housed on the external diameter of the big end of last center rod 19.
Other characteristics of the utility model are: go up central sleeve 1 be contained in leather cup locking jaw 22 on the central sleeve 1, be contained on the connecting sleeve 4, be fixed in leather cup 3 composition sealed system part on central sleeve 1 and the linking sleeve 4 with leather cup sheath 2; Positioning pawl 5 is fixed on an end of overcoat 10 and is connected with connecting rod 6, with spring 15 in the blind hole of the slide block 7 of the last center rod 19 that is enclosed within convex, central shaft 17, on central shaft 17 external diameters spring 16 and go up center rod 19 spring 20 and baffle ring 8, be arranged on locking cone 14, central shaft 17, solid of rotation 18 in locating stud 9, the overcoat 10 on the overcoat 10, the lock dog 11 that torsion spring 12 is housed, the thimble 13 that is contained in overcoat 10 1 ends, the overcoat 10, go up center rod 19, and overcoat 10 on location pawl pin 21 form the self-locking localization parts.
Slide block 7 usefulness pin hinges connect, and positioning pawl 5 is rotatable on overcoat 10 by location pawl pin 21 hinges, and slide block 7 and spring 20 are placed on the center rod 19 and can endwisely slip.
Be hinged with in central shaft 17 underparts locking cone 14, spring 15, overcoat 10 underparts dress thimble 13 are housed in lock dog 11, the center hole, relative with locking cone 14, be with spring 16 and solid of rotation 18 on the central shaft 17, the end that is loaded on the locating stud 9 on the overcoat 10 is stretched protruding in the appearance groove of solid of rotation 18, and solid of rotation 18 can rotate on central shaft 17.
The torsion spring 12 of reset function is housed on the lock dog 11, and locking cone 14 make its conical surface pushing tow in the centre area of lock dog 11 afterbodys, and thimble 13 is relative with the center of locking cone 14 under the effect of spring 15, and lock dog is four or three.
Locating stud 9 is two, and symmetry is installed on the overcoat 10, and the outer surface of solid of rotation 18 has two groups of irregular similar shape serrated slot.
Central shaft 17 is by the detachable block that is threaded.
Oil well of the present utility model is with having designed sealed system of seat and self-locking position structure in the self-locking sealer, adopt the qualification of slide displacement distance between solid of rotation and the locating stud, by the motion of coupling mechanism, reach " opening-draw in-draw in " running state of positioning pawl.Its biggest advantage is that instrument once goes into the well, and can carry out the water filling operation to any water filling layer, and need not consider the sequencing that the water filling layer is upper and lower.And instrument is after each layer operation finished, and positioning pawl is in rounding state all the time.The utility model and flowmeter are used, play afflux and seal action, be used for the metering of oilfield injection flow, utilize the positioning pawl on it that whole instrument is strung positioning action, can carry out the layered water injection operation, make the water that injects oil well all flow through float-type flowmeter, to reach the accurate metering of injection flow.
Fig. 1 is a structure sectional view of the present utility model;
Fig. 2 is a B-B partial sectional view of the present utility model;
Fig. 3 is the unfolded drawing of solid of rotation of the present utility model;
Fig. 4 is a downhole tool inwall schematic representation.
The utility model is described in further detail below in conjunction with drawings and Examples.
Referring to Fig. 1～4, Fig. 1 is the structural drawing (positioning pawl open mode) of oil well with the self-locking sealer.Comprise a connecting sleeve 4 that has water injection hole, in the connecting sleeve 4 one of suit can connecting sleeve 4 slide and have water injection hole on central sleeve 1, leather cup 3 is housed on the wall of connecting sleeve 4, leather cup sheath 2 is housed on the leather cup 3, the inside of overcoat 10 1 ends is contained in the leather cup locking card 22 on the central sleeve 1 in addition, the big end of last center rod 19 is equipped with the central shaft 17 that an end has blind hole successively, spring 16, and in the overcoat 10 of packing into together, the position that overcoat 10 is positioned at solid of rotation 18 is provided with locating stud 9, spring 15 also is housed in the blind hole of central shaft 17, spring 15 is pushed down by locking cone 14 and lock dog 11 that torsion spring 12 is housed, and overcoat 10 1 ends are equipped with thimble 13.
End at overcoat 10 is connected with positioning pawl 5 by location pawl pin 21, the middle part of positioning pawl 5 connects connecting rod 6, link to each other with slide block 7 back and shelves ring 8, spring 20 of the other end of connecting rod 6 together is enclosed within on the small end of last center rod 19 of convex, and the solid of rotation 18 of ring-type also is housed on the external diameter of the big end of last center rod 19.
Last central sleeve 1 be contained in leather cup locking jaw 22 on the central sleeve 1, be contained on the connecting sleeve 4, be fixed in leather cup 3 composition sealed system part on central sleeve 1 and the linking sleeve 4 with leather cup sheath 2; Positioning pawl 5 is fixed on an end of overcoat 10 and is connected with connecting rod 6, with spring 15 in the blind hole of the slide block 7 of the last center rod 19 that is enclosed within convex, central shaft 17, on central shaft 17 external diameters spring 16 and go up center rod 19 spring 20 and baffle ring 8, be arranged on locking cone 14, central shaft 17, solid of rotation 18 in locating stud 9, the overcoat 10 on the overcoat 10, the lock dog 11 that torsion spring 12 is housed, the thimble 13 that is contained in overcoat 10 1 ends, the overcoat 10, go up center rod 19, and overcoat 10 on location pawl pin 21 form the self-locking localization parts.
Slide block 7 usefulness pin hinges connect, and positioning pawl 5 is rotatable on overcoat 10 by location pawl pin 21 hinges, and slide block 7 and spring 20 are placed on the center rod 19 and can endwisely slip.
Be hinged with in central shaft 17 underparts locking cone 14, spring 15, overcoat 10 underparts dress thimble 13 are housed in lock dog 11, the center hole, relative with locking cone 14, be with spring 16 and solid of rotation 18 on the central shaft 17, the end that is loaded on the locating stud 9 on the overcoat 10 is stretched protruding in the appearance groove of solid of rotation 18, and solid of rotation 18 can rotate on central shaft 17.
The torsion spring 12 of reset function is housed on the lock dog 11, and locking cone 14 make its conical surface pushing tow in the centre area of lock dog 11 afterbodys, and thimble 13 is relative with the center of locking cone 14 under the effect of spring 15, and lock dog is four or three.
Locating stud 9 is two, and symmetry is installed on the overcoat 10, and the outer surface of solid of rotation 18 has two groups of irregular similar shape serrated slot.
Central shaft 17 is by the detachable block that is threaded.
This self-locking sealer is connected in the below of flowmeter, according to the pattern of wants surveying instrument string of measuring.Before instrument was gone into the well, positioning pawl 5 was in rounding state, and locating stud 9 is in the groove A place of solid of rotation 18 outer surfaces, as shown in Figure 3.After instrument is transferred to water injection well one deck, on carry instrument, at this moment, because the effect of locking cone 14, lock dog 11 can not be rotated down, make central shaft 17, solid of rotation 18, baffle ring 8, locking cone 14 maintains static, lock dog 11 touches mutually with the downhole tool inwall and is hindered simultaneously, because sealed system part of seat and overcoat 10, thimble 13 grades partly continue to move upward, locating stud 9 is moved in solid of rotation 18 outer surface grooves, stir solid of rotation 18 and turn over a groove position, carry instrument in the continuation, thimble 13 rushes open locking cone 14, and lock dog 11 is rotated down and central shaft 17 is driven turn 18 under the effect of spring 16, baffle ring 8 moves upward, stir solid of rotation 18 and turn over an angle, make locating stud 9 move to the groove B place of solid of rotation 18 outer surfaces, groove A and groove B are axially having a range difference AB, so central shaft 17 drives slide blocks 7 than the home position AB distance that moved up, under the promotion of connecting rod 6, make positioning pawl 5 rotate to open configuration around location pawl pin 21; At this moment, carry the major diameter place to eccentric water allocater on the instrument, lock dog 11 resilience under the effect of torsion spring 12 returns to reset condition again.Locking cone 14 is released under the effect of spring 15, inserts in the centre area of lock dog 11 afterbodys, transfers instrument then, positioning pawl 5 is stuck on the boss of eccentric water allocater the whole instrument string is located.Under the effect of inertial force, the sealed system part of seat continues to move down, and squeezes to rise by leather cup 3 and the applying of downhole tool inner tube wall and reach sealing, can carry out the measurement of injection flow.
Carry instrument on after water filling and flow measurement are finished, the downhole tool inner diameter changes (referring to Fig. 4), and leather cup locking jaw 22 is compressed, and under the effect of spring, last central sleeve 1 moves upward, and makes leather cup 3 contractions, depressurization.Because lock dog 11 effects, repeat said process again, make solid of rotation 18 turn over an angle again, locating stud 9 moves in solid of rotation 18 outer surfaces and B groove positions such as groove A, make central shaft 17 get back to the home position again, under the effect of spring 20, slide block 7 moves downward, and makes positioning pawl 5 be in rounding state.Carry instrument in the continuation, because the diameter of downhole tool changes again once, under the drive of lock dog 11, carry out one time said process again, solid of rotation 18 turns over an angle again, locating stud 9 moves in solid of rotation 18 outer surfaces and another C groove positions such as groove A, make central shaft 17 keep the home position, positioning pawl 5 still is in rounding state.
Because downhole tool is twice of each water filling layer vary in diameter, as shown in Figure 4, make positioning pawl control section continuous action 3 times, solid of rotation 18 turns over 3 positions, because the position difference of solid of rotation 18 outer surface grooves, make the process motion of positioning pawl 5 by " opening-draw in-draw in ", promptly after each water filling layer operation was finished, positioning pawl 5 was in rounding state all the time, like this, just can be according to the water filling requirements of one's work, instrument is once gone into the well, and any water filling layer is dammed to be sealed and measures.
Claims (7)
1, a kind of oil well self-locking sealer, comprise a connecting sleeve [4] that has water injection hole, one of the interior suit of connecting sleeve [4] can slide and has the last central sleeve [1] of water injection hole in connecting sleeve [4], leather cup [3] is housed on the wall of connecting sleeve [4], leather cup sheath [2] is housed on the leather cup [3], the inside of overcoat [10] one ends is contained in the leather cup locking card [22] on the central sleeve [1] in addition, the big end of last center rod [19] is equipped with the central shaft [17] that an end has blind hole successively, spring [16], and in the overcoat [10] of packing into together, the position that is positioned at solid of rotation [18] on the overcoat [10] is provided with locating stud [9], spring [15] also is housed in the blind hole of central shaft [17], spring [15] is pushed down by locking cone [14] and lock dog [11] that torsion spring [12] are housed, overcoat [10] one ends dress thimble [13], it is characterized in that: at an end of overcoat [10], be connected with positioning pawl [5] by location pawl pin [21], the middle part of positioning pawl [5] connects connecting rod [6], after linking to each other with slide block [7], the other end of connecting rod [6] encircles [8] with shelves, spring [20] together is enclosed within on the small end of last center rod [19] of convex, and the solid of rotation [18] of ring-type also is housed on the external diameter of the big end of center rod [19].
2, oil well self-locking sealer according to claim 1 is characterized in that: described go up central sleeve [1] be contained in leather cup locking jaw [22] on the central sleeve [1], be contained on the linking sleeve [4], be fixed in leather cup [a 3] composition sealed system part on central sleeve [1] and the linking sleeve [4] with leather cup sheath [2]; Positioning pawl [5] is fixed on an end of overcoat [10] and is connected with connecting rod [6], with the slide block [7] of the last center rod [19] that is enclosed within convex, spring [15] in the blind hole of central shaft [17], spring [16] on central shaft [17] external diameter reaches spring [20] and the baffle ring [8] of going up center rod [19], be arranged on the locating stud [9] on the overcoat [10], overcoat [10], the lock dog [11] of torsion spring [12] is housed, be contained in the thimble [13] of overcoat [10] one ends, locking cone [14] in the overcoat [10], central shaft [17], solid of rotation [18], last center rod [19], and the location pawl pin [21] on the overcoat [10] is formed the self-locking localization part.
3. oil well self-locking sealer according to claim 1, it is characterized in that: slide block [7] connects with the pin hinge, positioning pawl [5] is gone up rotatable in overcoat [10] by location pawl pin [21] hinge, slide block [7] and spring [20] are placed on the center rod [19] and can endwisely slip.
4. oil well self-locking sealer according to claim 1, it is characterized in that: be hinged with in central shaft [17] underpart locking cone [14], spring [15], overcoat [10] underpart dress thimble [13] are housed in lock dog [11], the center hole, relative with locking cone [14], be with spring [16] and solid of rotation [18] on the central shaft [17], the end that is loaded on the locating stud [9] on the overcoat [10] is stretched protruding in the outer surface groove of solid of rotation [18], and solid of rotation [18] can be gone up rotation at central shaft [17].
5. according to claim 1 or 4 described oil well self-locking sealers, it is characterized in that: the torsion spring [12] that reset function is housed on the lock dog [11], locking cone [14] is under the effect of spring [15], make the centre area of its conical surface pushing tow in lock dog [11] afterbody, and thimble [13] is relative with the center of locking cone [14], and lock dog is four or three.
6. according to claim 1 or 4 described oil well self-locking sealers, it is characterized in that: locating stud [9] is two, and symmetry is installed on the overcoat [10], and two groups of irregular similar shape serrated slot are arranged on the outer surface of solid of rotation [18].
7. according to claim 1 or 4 described oil well self-locking sealers, it is characterized in that: central shaft [17] is by the detachable block that is threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01240461 CN2491654Y (en) | 2001-05-30 | 2001-05-30 | Self-locking sealer for oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01240461 CN2491654Y (en) | 2001-05-30 | 2001-05-30 | Self-locking sealer for oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2491654Y true CN2491654Y (en) | 2002-05-15 |
Family
ID=33652685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01240461 Expired - Fee Related CN2491654Y (en) | 2001-05-30 | 2001-05-30 | Self-locking sealer for oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2491654Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101209441B (en) * | 2006-12-30 | 2010-05-12 | 比亚迪股份有限公司 | Press sealing device for box body open pore |
| CN104596417A (en) * | 2015-01-13 | 2015-05-06 | 哈尔滨飞机工业集团有限责任公司 | Adjustable cursor seat |
| CN112377128A (en) * | 2020-11-11 | 2021-02-19 | 中国地质科学院地质力学研究所 | Locator is retrieved with freedom in installation of drilling stressmeter |
-
2001
- 2001-05-30 CN CN 01240461 patent/CN2491654Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101209441B (en) * | 2006-12-30 | 2010-05-12 | 比亚迪股份有限公司 | Press sealing device for box body open pore |
| CN104596417A (en) * | 2015-01-13 | 2015-05-06 | 哈尔滨飞机工业集团有限责任公司 | Adjustable cursor seat |
| CN104596417B (en) * | 2015-01-13 | 2017-12-12 | 哈尔滨飞机工业集团有限责任公司 | A kind of adjustable cursor seat |
| CN112377128A (en) * | 2020-11-11 | 2021-02-19 | 中国地质科学院地质力学研究所 | Locator is retrieved with freedom in installation of drilling stressmeter |
| CN112377128B (en) * | 2020-11-11 | 2021-06-22 | 中国地质科学院地质力学研究所 | Locator is retrieved with freedom in installation of drilling stressmeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |