CN205012962U - Variable sealing device of mass flow formula in pit - Google Patents
Variable sealing device of mass flow formula in pit Download PDFInfo
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- CN205012962U CN205012962U CN201520769453.0U CN201520769453U CN205012962U CN 205012962 U CN205012962 U CN 205012962U CN 201520769453 U CN201520769453 U CN 201520769453U CN 205012962 U CN205012962 U CN 205012962U
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- switch
- sealing device
- cover
- variable sealing
- pressure spring
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Abstract
Provided is a variable sealing device of mass flow formula in pit includes: joint, center tube, leather cup, " (b) (b) 0 (b) (b) " type extension spring, taper sleeve, big pressure spring, hookup cover, sealing washer, tooth cover, rack, gear, locating detent, big gyro wheel, switch fork, little pressure spring, switch lever, torsional spring, trundle, switch piece, switch wheel, main part, pin. The variable sealing device of mass flow formula in pit main part is equipped with the centre bore, on, the lower part is equipped with the trompil respectively, trompil down, fan -shaped switch wheel upper portion is equipped with the switch lever in proper order in the trompil down, little pressure spring, the switch fork, two big gyro wheels, the locating detent, two gears, mesh the rack in the middle of two gears, the tooth cover in the end connection on the rack, main part upper portion and hookup cover threaded connection, the screw thread lower part is equipped with the two -stage sealing washer, tooth cover upper portion is equipped with the center tube lower part cover that the bottom has annular boss has big pressure spring, big pressure spring upper portion is equipped with the taper sleeve, the taper sleeve outside is equipped with the leather cup, the taper sleeve top is equipped with the joint, it is overlapping the extension spring to connect the lower part, be equipped with the pin between hookup cover and taper sleeve. (B, )
Description
Technical field
the utility model relates to water injection well in oil fields seperated layer water injection measuring technology, specifically the variable sealing device of a kind of down-hole current-collecting formula.
Background technology
oil field enters after date when necessarily developing, and in order to supplementary stratum energy, takes the mode of waterflooding extraction.The mode of seperated layer water injection can improve water-injection efficiency, effectively solves the contradiction in development process, realizes oil field Efficient Development.In order to measuring well lower leaf water injection rate, have employed the metering of following flow meter: first, float-type mechanical meters, measured flux and float spring deformation are nonlinear functions, also exist that certainty of measurement is not high, the problem of complex operation.Secondly, electromagnetic flowmeter, according to electromagnetic induction principle, measures the mean flow rate of liquid in oil pipe, sleeve pipe, converts and obtains volume flow.Measurement result does not directly affect by the factor such as temperature, pressure, density, viscosity of fluid.The metering system of instrument has three kinds: one to be current collection mode, and instrument lower end connects the seal section of fixed outer diameter, hermetically-sealed instrument and the direct annular space of tubing string, and all fluids flow through instrument internal passage and realize measuring.Two is center flow velocity modes, and during measurement, a part for full well yield enters in the probe of flow meter, and major part is flow through by flow meter space outerpace.Three is outflow modes, and all detected fluid are all flow through by the space between flow meter and oil pipe.3rd, ultrasonic flowmeter, the flow velocity of ultrasonic wave phase difference method convection cell is utilized to measure, upper and lower transducer sends relative ultrasonic beam simultaneously, creates a phase difference be directly proportional to flow velocity, is recorded to phase difference, just can determine the flow velocity of fluid, then convert flow velocity to flow, flow velocity mode centered by the metering system of employing, namely partial discharge counts Measurement channel.
the flowmeter survey result of employing center flow velocity and outflow mode is large by the influence factor of managed column diameter, water injection string Long-Time Service, be subject to dielectric corrosion tubing string diameter and become large or fouling causes diameter to diminish, measure caliber and to demarcate the inconsistent survey data that just causes of caliber inaccurate.Fluid measured by current collection mode can only flow through instrument internal passage, not by caliber variable effect, and the space between the fixed diameter seal section hermetically-sealed instrument of utilization and tubing string.Fixing latus rectum seal section, in ground adjustment surplus amount, adjusts excessive, instrument plays resistance large, causes instrument to fall well.Adjust too small, sealing cannot be realized, cause to measure and forbidden.
Summary of the invention
the purpose of this utility model is exactly cause the inaccurate of measurement to solve managed column diameter change in above-mentioned measuring process, solves the problem of fixing seal mode catchment effect difference simultaneously, provides a kind of down-hole current-collecting formula variable sealing device.
the purpose of this utility model is realized by following technical proposals:
the utility model comprises: joint, central tube, leather cup, " 0 " type extension spring, tapered sleeve, large stage clip, coupling sleeve, sealing ring, tooth cover, tooth bar, gear, locating detent, big roller, switch fork, small pressure spring, switch lever, torsion spring, trundle, switch block, switch wheel, main body, pin.The main body of the described variable sealing device of down-hole current-collecting formula is provided with centre bore, top is provided with perforate in rectangle, bottom is provided with perforate under rectangle, fan-shaped switch wheel is provided with in lower perforate, the top of switch wheel is provided with switch lever successively, small pressure spring, switch is pitched, two big rollers, locating detent, two gears, tooth bar is engage in the middle of two gears, the upper end of tooth bar connects tooth cover, the top of main body is threaded with coupling sleeve, thread portions is provided with two-stage sealing ring, the top of tooth cover is provided with the central tube of bottom with annular boss, the bottom cover of central tube has large stage clip, the top of large stage clip is provided with tapered sleeve, the outside of tapered sleeve is provided with leather cup, the top of tapered sleeve is provided with joint, extension spring is overlapped in the bottom of joint, pin is provided with between coupling sleeve and tapered sleeve.
joint in the variable sealing device of above-mentioned down-hole current-collecting formula is arranged with four blind holes.
central tube bottom in the variable sealing device of above-mentioned down-hole current-collecting formula is provided with interior flowing hole.
flowing hole outside coupling sleeve middle and lower part in the variable sealing device of above-mentioned down-hole current-collecting formula.
the right side of the switch wheel in the variable sealing device of above-mentioned down-hole current-collecting formula is by the articulated switch block of axle, and axle head is provided with torsion spring, and the outer end of switch block is provided with trundle.
the beneficial effects of the utility model are: be applicable to water injection well in oil fields seperated layer water injection test, the variable sealing device of down-hole current-collecting formula is in locking state before going into the well, seal section external diameter is consistent with instrument, in the process of going into the well, fixing seal section protrusion main body can not occur and cause the problem be hampered.This device is carried in process upper, opens by during injection well downhole flow regulator, opens switch in bottom, and seal section, on top, reduces seal section by resistance, and the stressed sealed diameter change of seal section, seal section sealing effectiveness is more reliable, and survey data is inaccurate, reliable.
Accompanying drawing explanation
fig. 1-the utility model master looks complete section structural representation.
in figure, 0. joint, 1. central tube, 2. leather cup, 3. " 0 " type extension spring, 4. tapered sleeve, 5. large stage clip, 6. coupling sleeve, 7. sealing ring, 8. tooth cover, 9. tooth bar, 10. gear, 11. locating detents, 12. big rollers, 13. switch forks, 14. small pressure springs, 15. switch levers, 6. torsion spring 17. trundle, 18. switch blocks, 19. switch wheels, 20. main bodys, 21. pins; M. blind hole, flowing hole in N., the outer flowing hole of W., the upper perforate of S., Z. centre bore, perforate under X..
Detailed description of the invention
by reference to the accompanying drawings, the utility model will be further described:
embodiment 1
the variable sealing device of down-hole current-collecting formula is made up of joint 0, central tube 1, leather cup 2, " 0 " type extension spring 3, tapered sleeve 4, large stage clip 5, coupling sleeve 6, sealing ring 7, tooth cover 8, tooth bar 9, gear 10, locating detent 11, big roller 12, switch fork 13, small pressure spring 14, switch lever 15, torsion spring 16, trundle 17, switch block 18, switch wheel 19, main body 20, pin 21.The main body 20 of the described variable sealing device of down-hole current-collecting formula is provided with centre bore Z, top is provided with perforate S in rectangle, bottom is provided with perforate X under rectangle, fan-shaped switch wheel 19 is provided with in lower perforate X, the right side of switch wheel 19 is by the articulated switch block 18 of axle, axle head is provided with torsion spring 16, the outer end of switch block 18 is provided with trundle 17, the top of switch wheel 19 is provided with switch lever 15 successively, small pressure spring 14, switch fork 13, two big rollers 12, locating detent 11, two gears 10, tooth bar 9 is engage in the middle of two gears 10, the upper end of tooth bar 9 connects tooth cover 8, the top of main body 20 is threaded with coupling sleeve 6, thread portions is provided with two-stage sealing ring 7, the top of tooth cover 8 is provided with the central tube 1 of bottom with annular boss, the bottom cover of central tube 1 has large stage clip 5, the top of large stage clip 5 is provided with tapered sleeve 4, the outside of tapered sleeve 4 is provided with leather cup 2, the top of tapered sleeve 4 is provided with joint 0, extension spring 3 is overlapped in the bottom of joint 0, pin 21 is provided with between coupling sleeve 6 and tapered sleeve 4.
embodiment 2
the joint 0 of the variable sealing device of down-hole current-collecting formula is connected on collecting type underground electromagnetic flow meter lower connector, and center can flow through injection water.First by switch wheel 19 jack-up switch lever 15 before going into the well, and pinned by locating detent 11, do not make it open, the tooth cover 8 on this hour rack 9 top, by central tube 1 jack-up, big spring 5 is compressed, and " 0 " type extension spring 3 falls into the below of tapered sleeve 4, and leather cup 2 is retracted, ().When instrument G.I.H, after injection well downhole flow regulator, on carry piano wire, when encountering downhole water flow regulator lower end when switch block 18 is carried, the diameter formed due to switch block 18 was greater than in downhole water flow regulator lower end through (being greater than 10mm), due to the effect of power, switch wheel 18 is forced to be rotated down, when turn over be greater than 90 degree time, under the effect of switch lever 15 top small pressure spring 14 spring force, switch fork 13 is driven to move downward, at this moment it is descending that the large stage clip 5 that tooth overlaps 8 tops promotes tooth bar 9, again because large stage clip 5 is pressed in the lower end of central tube 1, pull central tube 1 descending, " 0 " type extension spring 3 is supportted to surrounding again by the tapered sleeve 4 on central tube 1, leather cup 2 struts () again by " 0 " type extension spring 3, at this moment locating detent 11 is again under the effect of tooth bar 9, locating detent 11 is forced to open (), above-mentioned action is all synchronous interaction, then instrument is transferred, under gravity, locating detent 11 is just supported on the positioning step of water injection well distributor, ensure instrument and the variable sealing device of down-hole current-collecting formula motionless, and leather cup 2 is sitting in the seating nipple of injection well downhole flow regulator, all injection water is caused all to flow through packer flowmeter probe, flow out through central tube 1 bottom again, this addresses the problem the measure error caused because causing caliber to reduce after tubing string fouling, due to top serial connection is outer-flowing type underground electromagnetic flow, bottom is collecting type underground electromagnetic flow meter, by the ratio of difference in flow between the two, the situation of shaft structure can be conversed, thus reach the object more accurately can measuring the water injection rate between each layer.
Claims (5)
1. the variable sealing device of down-hole current-collecting formula, comprising: joint (0), central tube (1), leather cup (2), " 0 " type extension spring (3), tapered sleeve (4), large stage clip (5), coupling sleeve (6), sealing ring (7), tooth cover (8), tooth bar (9), gear (10), locating detent (11), big roller (12), switch fork (13), small pressure spring (14), switch lever (15), torsion spring (16), trundle (17), switch block (18), switch wheel (19), main body (20), pin (21), it is characterized in that: the main body (20) of the described variable sealing device of down-hole current-collecting formula is provided with centre bore (Z), top is provided with perforate in rectangle (S), bottom is provided with perforate (X) under rectangle, fan-shaped switch wheel (19) is provided with in lower perforate (X), the top of switch wheel (19) is provided with switch lever (15) successively, small pressure spring (14), switch fork (13), two big rollers (12), locating detent (11), two gears (10), tooth bar (9) is engage in the middle of two gears (10), the upper end of tooth bar (9) connects tooth cover (8), the top of main body (20) is threaded with coupling sleeve (6), thread portions is provided with two-stage sealing ring (7), the top of tooth cover (8) is provided with the central tube (1) of bottom with annular boss, the bottom cover of central tube (1) has large stage clip (5), the top of large stage clip (5) is provided with tapered sleeve (4), the outside of tapered sleeve (4) is provided with leather cup (2), the top of tapered sleeve (4) is provided with joint (0), extension spring (3) is overlapped in the bottom of joint (0), pin (21) is provided with between coupling sleeve (6) and tapered sleeve (4).
2. the variable sealing device of down-hole current-collecting formula according to claim 1, is characterized in that: described joint (0) is arranged with four blind holes (M).
3. the variable sealing device of down-hole current-collecting formula according to claim 1, is characterized in that: described central tube (1) bottom is provided with interior flowing hole (N).
4. the variable sealing device of down-hole current-collecting formula according to claim 1, is characterized in that: flowing hole (W) outside described coupling sleeve (6) middle and lower part.
5. the variable sealing device of down-hole current-collecting formula according to claim 1, it is characterized in that: the right side of described switch wheel (19) is by the articulated switch block of axle (18), axle head is provided with torsion spring (16), and the outer end of switch block (18) is provided with trundle (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520769453.0U CN205012962U (en) | 2015-10-04 | 2015-10-04 | Variable sealing device of mass flow formula in pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520769453.0U CN205012962U (en) | 2015-10-04 | 2015-10-04 | Variable sealing device of mass flow formula in pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205012962U true CN205012962U (en) | 2016-02-03 |
Family
ID=55211571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520769453.0U Expired - Fee Related CN205012962U (en) | 2015-10-04 | 2015-10-04 | Variable sealing device of mass flow formula in pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205012962U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313738A (en) * | 2017-09-06 | 2017-11-03 | 刘书豪 | The production method of fluid separation apparatus, hoistway structure and oil or natural gas |
| CN111691843A (en) * | 2019-03-11 | 2020-09-22 | 中国石油天然气股份有限公司 | Oil pipe plug |
-
2015
- 2015-10-04 CN CN201520769453.0U patent/CN205012962U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313738A (en) * | 2017-09-06 | 2017-11-03 | 刘书豪 | The production method of fluid separation apparatus, hoistway structure and oil or natural gas |
| CN107313738B (en) * | 2017-09-06 | 2019-12-20 | 刘书豪 | Fluid separation device, well structure, and method for producing oil or natural gas |
| CN111691843A (en) * | 2019-03-11 | 2020-09-22 | 中国石油天然气股份有限公司 | Oil pipe plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20161004 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |