CN2856397Y - Constant flow regulatable obturator - Google Patents
Constant flow regulatable obturator Download PDFInfo
- Publication number
- CN2856397Y CN2856397Y CN 200520022178 CN200520022178U CN2856397Y CN 2856397 Y CN2856397 Y CN 2856397Y CN 200520022178 CN200520022178 CN 200520022178 CN 200520022178 U CN200520022178 U CN 200520022178U CN 2856397 Y CN2856397 Y CN 2856397Y
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- spring
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- water nozzle
- piston
- spool
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Abstract
The utility relates to a adjustable packer especially to a packer used for oil field water injection well. The of valve core (10) of the packer with its top end inserted in the transmission shaft (8) which is equipped with a screw sleeve (9) has a second spring (11) and a third spring (13). A fixed water faucet (21) on the bottom end of the third spring (13) has a piston (18) mounted inside. Both the fixed faucet (21) and the piston (18) have a outlet hole (23). The screwed piston (20) is equipped inside with an water faucet induction valve (22) which has a fourth spring (15) mounted thereon and a oil field water faucet (20) mounted in the filter bowl (17) on the bottom end. The packer has the advantage of double function of adjustable and constant current, solves the problem of interlayer interference which influences adjusting efficiency and charging water pass percent, and solves the problem that the water faucet can not be adjusted automatically.
Description
Technical field
The utility model relates to a kind of blanking plug of used for water injection wells in oil fields, is specifically related to the adjustable blanking plug of a kind of constant current.
Background technology
Original used for water injection wells in oil fields blanking plug has adjustable blanking plug and two kinds of form of structure of constant flow blanking plug, adopt adjustable blanking plug, inject water and behind filter bowl and liquid outlet, inject the stratum, its adjustment process is that gauging means docks with driving head, the transmission component forward or reverse drives core assembly along the axially-movable of lower house internal thread, change the area of passage between spool and the liquid outlet, thereby regulate injection rate.Though this adjustable blanking plug can be realized the automatic adjusting of water nozzle size, but can't overcome the interlayer interference phenomenon, influence is surveyed and is transferred efficient and water filling qualification rate (promptly in carrying out each interval flow rate test allocation process of water injection well, after a certain interval allotment is qualified, when other intervals are tested allotment, because water injection pressure changes, and allocates qualified water injection rate of interval and changes, cause the retest allotment; After perhaps full well surveying examination allotment is qualified,, cause a certain water injection rate of interval to change, influence the water filling qualification rate) because the well head water injection pressure changes; Though adopt constant flow blanking plug can be implemented in constant water injection rate of interval under certain pressure reduction condition, the water nozzle size can't be regulated (is ZL200510009708.4 as number of patent application) automatically, and its application is restricted.
The utility model content
The purpose of this utility model is to adopt adjustable blanking plug to exist the interlayer interference phenomenon to overcome for solving existing water injection well in oil fields, influence survey to be transferred efficient and water filling qualification rate problem and is adopted constant flow blanking plug to exist the water nozzle size to regulate automatically, and its application is restricted problem and the adjustable blanking plug of a kind of constant current that provides.It comprises fishing head 1, upper body assembly, cam 3, lower house 4, sealing ring 5, oil field water nozzle 20; It also comprises adaptor sub 6, pin 7, power transmission shaft 8, swivel nut 9, spool 10, second spring 11, second spring base 12, the 3rd spring 13, the 3rd spring base 14, the 4th spring 15, filter bowl 17, piston 18, packing ring 19, fixedly water nozzle 21 and water nozzle Inductance valve 22; Upper shell 2-1 in the upper end of lower house 4 and the upper body assembly adopts and is threaded, the lower end of lower house 4 is adopted with the upper end of filter bowl 17 and is threaded, the power transmission shaft 8 of making one with fishing head 1 is housed in the upper end cover 2-2 in the upper body assembly, adaptor sub 6 is housed on the fishing head 1 and passes through pin 7 and connect, the upper end of spool 10 is inserted in the axis hole 8-1 of power transmission shaft 8 lower ends, with on the corresponding power transmission shaft 8 of described axis hole 8-1 the swivel nut 9 that is threaded with power transmission shaft 8 is housed, has threaded boss 10-1 on the spool 10, on the spool 10 of described boss 10-1 upper end second spring 11 and second spring base 12 are housed, on the spool 10 between second spring 11 and the swivel nut 9 cam 3 is housed, the 3rd spring base 14 and the 3rd spring 13 are housed on the spool 10 of described boss 10-1 lower end, packing ring 19 and fixing water nozzle 21 are housed on the spool 10 of the 3rd spring 13 lower ends, fixedly in the water nozzle 21 piston 18 is housed, fixedly water nozzle 21 radially has coaxial fluid hole 23 with piston 18, the upper end of water nozzle Inductance valve 22 is contained in the piston 18 and with piston 18 and is threaded, the 4th spring 15 is housed on the outer face of water nozzle Inductance valve 22, in the filter bowl 17 of water nozzle Inductance valve 22 lower ends oil field water nozzle 20 is housed, in the outer groove of filter bowl 17, in the outer groove of upper shell 2-1 and in the outer groove of lower house 4 sealing ring 5 is housed respectively.
The utlity model has following beneficial effect: one, the utility model base area plasmogamy is annotated and is required to set desired value, drives power transmission shaft and valve core movement by the measurement and adjustment instrument device, realizes the automatic adjusting of this blanking plug fluid hole size.When water injection pressure changes, rely on the elastic force of the 3rd spring to come pressure reduction before and after balance valve core and the piston, make the pressure reduction before and after spool and the piston remain a constant, be constant thereby make flow by fluid hole, reach the metastable purpose of flow.Two, because this blanking plug has idle running of the transmission limit and reset function, when power transmission shaft moves to upper and lower extreme position, rely on the elastic force of second spring and the 3rd spring to make power transmission shaft be in idling conditions, " soft " stuck phenomenon can not occur, thereby guarantee ensuring smooth transmission, reliable.Three, the oil field water nozzle is owing to adopted oil field water nozzle commonly used, and easy to adjust, interchangeability is good, can reduce cost greatly.Four, adopt the 4th spring to come the pressure reduction up and down of equilibrium oil water in field mouth, guarantee that the flow by fluid hole is a constant, thereby reach the metastable purpose of flow.Five, the utility model can adopt original measurement and adjustment instrument device that the fluid hole size is automatically adjusted, and can be in harmonious proportion the requirement of constant current double action thereby satisfied this blanking plug, can effectively improve to survey and transfer efficient and water filling qualification rate.The advantage of six, the utility model is integrated existing adjustable blanking plug and constant flow blanking plug, it can finish the operation that does not need pulling to automatically adjust to the fluid hole size in the down-hole, can reach the purpose of constant flow rate again.Therefore, this blanking plug has the interlayer interference of overcoming, and shortens and surveys between timing, reduces the advantage of labor strength.
Description of drawings
Fig. 1 is an overall structure sectional drawing of the present utility model.
The specific embodiment
The specific embodiment one: in conjunction with Fig. 1 present embodiment is described, present embodiment is by fishing head 1, upper body assembly, cam 3, lower house 4, sealing ring 5, adaptor sub 6, pin 7, power transmission shaft 8, swivel nut 9, spool 10, second spring 11, second spring base 12, the 3rd spring 13, the 3rd spring base 14, the 4th spring 15, filter bowl 17, piston 18, packing ring 19, oil field water nozzle 20, fixedly water nozzle 21 and water nozzle Inductance valve 22 are formed; Described upper body assembly is made up of upper shell 2-1, upper end cover 2-2, the first spring 2-3, seal 2-4; The lower end of upper end cover 2-2 is contained in the upper shell 2-1 and with upper shell 2-1 and is threaded, and the first spring 2-3 is housed in the cavity between upper end cover 2-2 and the described swivel nut 9, in the outer groove of the upper end cover 2-2 in the upper shell 2-1 seal 2-4 is housed; Upper shell 2-1 in the upper end of lower house 4 and the upper body assembly adopts and is threaded, the lower end of lower house 4 is adopted with the upper end of filter bowl 17 and is threaded, the power transmission shaft 8 of making one with fishing head 1 is housed in the upper end cover 2-2 in the upper body assembly, adaptor sub 6 is housed on the fishing head 1 and passes through pin 7 and connect, the upper end of spool 10 is inserted in the axis hole 8-1 of power transmission shaft 8 lower ends, with on the corresponding power transmission shaft 8 of described axis hole 8-1 the swivel nut 9 that is threaded with power transmission shaft 8 is housed, has threaded boss 10-1 on the spool 10, on the spool 10 of described boss 10-1 upper end second spring 11 and second spring base 12 are housed, on the spool 10 between second spring 11 and the swivel nut 9 cam 3 is housed, the 3rd spring base 14 and the 3rd spring 13 are housed on the spool 10 of described boss 10-1 lower end, packing ring 19 and fixing water nozzle 21 are housed on the spool 10 of the 3rd spring 13 lower ends, fixedly in the water nozzle 21 piston 18 is housed, fixedly water nozzle 21 radially has coaxial fluid hole 23 with piston 18, described fluid hole 23 along piston 18 and fixedly the excircle end face of water nozzle 21 evenly distribute; The upper end of water nozzle Inductance valve 22 is contained in the piston 18 and with piston 18 and is threaded, the 4th spring 15 is housed on the outer face of water nozzle Inductance valve 22, in the filter bowl 17 of water nozzle Inductance valve 22 lower ends oil field water nozzle 20 is housed, in the outer groove of filter bowl 17, in the outer groove of upper shell 2-1 and in the outer groove of lower house 4 sealing ring 5 is housed respectively; Described sealing ring 5 is the O RunddichtringO; Described seal 2-4 is the O RunddichtringO.
The course of work is: this blanking plug is put in the inclined to one side hole of conventional eccentric injection mandrel, relied on cam 4 locked in inclined to one side hole, inject water and inject the stratum by the flow channels between filter bowl 17, oil field water nozzle 20, water nozzle Inductance valve 22, piston 18 and the spool 10.When needs are regulated area of passage, drive power transmission shaft 8 by the measurement and adjustment instrument device, drive spool 10 along doing axially-movable in the swivel nut 9 by power transmission shaft 8, by the area of passage of spool 10 adjusting fluid holes 23, regulate injection rate; The course of work of finishing limit idle running and resetting is: power transmission shaft 8 drive spools 10 rotate along the internal thread of swivel nut 9, when power transmission shaft 8 moves to upper and lower extreme position, power transmission shaft 8 relies on the elastic force of second spring 11 and the 3rd spring 13 to realize the idle running of power transmission shaft 8 respectively, thereby has avoided power transmission shaft 8 stuck phenomenon to occur; When power transmission shaft 8 counter-rotatings, the elastic force of the 3rd spring 13 makes the spool 10 and the internal thread of lower house 4 reconnect the realization counter-rotating, plays the effect that resets simultaneously; The course of work of finishing constant current is: when water injection pressure increased, water nozzle Inductance valve 22 and piston 18 upwards slided, and compress the 4th spring 15 at water nozzle Inductance valve 22 places simultaneously, and the liquid flow export area between piston 18 and the fluid hole 23 is reduced; When water injection pressure reduced, action is opposite with water injection pressure increase process, and was constant by the inlet outlet pressure differential that keeps fluid hole 23, reached the purpose of constant current.
Claims (5)
1, the adjustable blanking plug of a kind of constant current, it comprises fishing head (1), upper body assembly, cam (3), lower house (4), sealing ring (5), oil field water nozzle (20); It is characterized in that it also comprises adaptor sub (6), pin (7), power transmission shaft (8), swivel nut (9), spool (10), second spring (11), second spring base (12), the 3rd spring (13), the 3rd spring base (14), the 4th spring (15), filter bowl (17), piston (18), packing ring (19), fixedly water nozzle (21) and water nozzle Inductance valve (22); Upper shell (2-1) in the upper end of lower house (4) and the upper body assembly adopts and is threaded, the lower end of lower house (4) is adopted with the upper end of filter bowl (17) and is threaded, the power transmission shaft (8) of making one with fishing head (1) is housed in the upper end cover in the upper body assembly (2-2), adaptor sub (6) is housed on the fishing head (1) and passes through pin (7) and connect, the upper end of spool (10) is inserted in the axis hole (8-1) of power transmission shaft (8) lower end, with the swivel nut (9) that is threaded with power transmission shaft (8) is housed on the corresponding power transmission shaft of described axis hole (8-1) (8), has threaded boss (10-1) on the spool (10), on the spool (10) of described boss (10-1) upper end second spring (11) and second spring base (12) are housed, on the spool (10) between second spring (11) and the swivel nut (9) cam (3) is housed, the 3rd spring base (14) and the 3rd spring (13) are housed on the spool (10) of described boss (10-1) lower end, packing ring (19) and fixing water nozzle (21) are housed on the spool (10) of the 3rd spring (13) lower end, fixedly in the water nozzle (21) piston (18) is housed, fixedly water nozzle (21) radially has coaxial fluid hole (23) with piston (18), the upper end of water nozzle Inductance valve (22) is contained in the piston (18) and with piston (18) and is threaded, the 4th spring (15) is housed on the outer face of water nozzle Inductance valve (22), in the filter bowl (17) of water nozzle Inductance valve (22) lower end oil field water nozzle (20) is housed, in the outer groove of filter bowl (17), in the outer groove of upper shell (2-1) and in the outer groove of lower house (4) sealing ring (5) is housed respectively.
2, the adjustable blanking plug of constant current according to claim 1 is characterized in that the upper body assembly is made up of upper shell (2-1), upper end cover (2-2), first spring (2-3), seal (2-4); The lower end of upper end cover (2-2) is contained in the upper shell (2-1) and with upper shell (2-1) and is threaded, in the cavity between upper end cover (2-2) and the described swivel nut (9) first spring (2-3) is housed, in the outer groove of the upper end cover (2-2) in the upper shell (2-1) seal (2-4) is housed.
3, the adjustable blanking plug of constant current according to claim 1 is characterized in that described sealing ring (5) is the O RunddichtringO.
4, the adjustable blanking plug of constant current according to claim 2 is characterized in that described seal (2-4) is the O RunddichtringO.
5, the adjustable blanking plug of constant current according to claim 1, the excircle end face of water nozzle (21) evenly distributes to it is characterized in that reaching fixedly along piston (18) by described fluid hole (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520022178 CN2856397Y (en) | 2005-12-20 | 2005-12-20 | Constant flow regulatable obturator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520022178 CN2856397Y (en) | 2005-12-20 | 2005-12-20 | Constant flow regulatable obturator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2856397Y true CN2856397Y (en) | 2007-01-10 |
Family
ID=37599704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520022178 Expired - Fee Related CN2856397Y (en) | 2005-12-20 | 2005-12-20 | Constant flow regulatable obturator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2856397Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806205A (en) * | 2010-03-26 | 2010-08-18 | 董力维 | Adjustable constant-flow multifunctional blanking plug |
| CN101691835B (en) * | 2009-10-20 | 2012-07-25 | 大庆油田有限责任公司 | Layered high-pressure high-resolution adjustable water injection valve in oilfield |
| CN103375152A (en) * | 2013-08-09 | 2013-10-30 | 中国石油化工股份有限公司 | Adjustable plug capable of simultaneously controlling one water nozzle to be opened and the other closed |
| CN104141471A (en) * | 2013-05-10 | 2014-11-12 | 贵州航天凯山石油仪器有限公司 | Sealing method for adjustable blanking plug in eccentric water distributor and sealing structure of adjustable blanking plug in eccentric water distributor |
| CN104727775A (en) * | 2015-03-18 | 2015-06-24 | 新疆华隆油田科技股份有限公司 | Adjustable backflow-preventing blanking plug |
| CN108590606A (en) * | 2018-05-25 | 2018-09-28 | 东北石油大学 | A kind of adjustable constant-current water injection blanking plug |
| CN109252835A (en) * | 2017-07-14 | 2019-01-22 | 中国石油化工股份有限公司 | Jet stream constant flow blanking plug |
| CN109869124A (en) * | 2019-04-19 | 2019-06-11 | 中国石油天然气股份有限公司 | Regulable constant current stopper |
-
2005
- 2005-12-20 CN CN 200520022178 patent/CN2856397Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691835B (en) * | 2009-10-20 | 2012-07-25 | 大庆油田有限责任公司 | Layered high-pressure high-resolution adjustable water injection valve in oilfield |
| CN101806205A (en) * | 2010-03-26 | 2010-08-18 | 董力维 | Adjustable constant-flow multifunctional blanking plug |
| CN101806205B (en) * | 2010-03-26 | 2012-12-05 | 董力维 | Adjustable constant-flow multifunctional blanking plug |
| CN104141471A (en) * | 2013-05-10 | 2014-11-12 | 贵州航天凯山石油仪器有限公司 | Sealing method for adjustable blanking plug in eccentric water distributor and sealing structure of adjustable blanking plug in eccentric water distributor |
| CN103375152A (en) * | 2013-08-09 | 2013-10-30 | 中国石油化工股份有限公司 | Adjustable plug capable of simultaneously controlling one water nozzle to be opened and the other closed |
| CN103375152B (en) * | 2013-08-09 | 2015-11-04 | 中国石油化工股份有限公司 | Two-layer water nozzle controls the adjustable blanking plug that opens a conjunction simultaneously |
| CN104727775A (en) * | 2015-03-18 | 2015-06-24 | 新疆华隆油田科技股份有限公司 | Adjustable backflow-preventing blanking plug |
| CN109252835A (en) * | 2017-07-14 | 2019-01-22 | 中国石油化工股份有限公司 | Jet stream constant flow blanking plug |
| CN108590606A (en) * | 2018-05-25 | 2018-09-28 | 东北石油大学 | A kind of adjustable constant-current water injection blanking plug |
| CN108590606B (en) * | 2018-05-25 | 2023-04-25 | 东北石油大学 | Adjustable constant-current water injection blanking plug |
| CN109869124A (en) * | 2019-04-19 | 2019-06-11 | 中国石油天然气股份有限公司 | Regulable constant current stopper |
| CN109869124B (en) * | 2019-04-19 | 2021-06-15 | 中国石油天然气股份有限公司 | Adjustable constant-current blanking 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: 20070110 Termination date: 20141220 |
|
| EXPY | Termination of patent right or utility model |