CN202266240U - Underground differential-pressure repeated circulation valve device - Google Patents
Underground differential-pressure repeated circulation valve device Download PDFInfo
- Publication number
- CN202266240U CN202266240U CN2011202977431U CN201120297743U CN202266240U CN 202266240 U CN202266240 U CN 202266240U CN 2011202977431 U CN2011202977431 U CN 2011202977431U CN 201120297743 U CN201120297743 U CN 201120297743U CN 202266240 U CN202266240 U CN 202266240U
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- transposition
- circulation
- mandrel
- ring
- valve body
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Abstract
An underground differential-pressure repeated circulation valve device belongs to oil well completion equipment and comprises an upper connector and a lower connector which are respectively arranged at two ends of the device and used for being connected with underground equipment. One end of the upper connector is connected with one end of a transposition outer barrel through threads to form an integrated casing of a transposition mechanism. A core shaft scraping ring, a transposition pin, a transposition protection sleeve, a return spring, a transposition ring, a spline sleeve, clutch ring, a spline pin and a screw are sequentially arranged on a core shaft in the integrated casing of the transposition mechanism. A positive circulation seat, a positive circulation cap, a check ball, a reversed circulation seat, a reversed circulation cap and a check ball are arranged on a valve body. A piston is connected with the core shaft through threads, and the lower connection is connected with the valve body through threads. The underground differential-pressure repeated circulation valve device is suitable for various full-diameter pressure in cased wells to control operation of positive circulation and reversed circulation, thereby being simple, convenient, safe and reliable in circulation operation.
Description
Technical field
The utility model belongs to the oil drilling equipment technical field, particularly the petroleum oil well completion equipment technical field.
Technical background
All must be in circulation port locking closed condition before the down-hole circulating valve device that uses is at present gone into the well, mainly be to pressurize through annular space to realize the opening operation of circulating valve during work.They mainly act on is reverse circulation valve.Both after circulation port was opened, liquid was returned in the circulation of accomplishing from the casing annulus to the tubing string.Be characterized in: operating pressure is uncertain, and the circulating valve device controls pressure and changes with the variation of factors such as well depth, well temperature, down-hole pressure; The circulation port of circulating valve is after from the open mode to the fastening position, and circulation port will be in the locking closed condition, belong to disposable operation, can not realize repeatedly opening and closing operation.
Summary of the invention
The purpose of design of the utility model is the differential structure and transposition structure of a kind of differential repeatedly circulating valve device of design, operates the transposition structure with the pressure reduction of annular chamber liquid column hydrostatic pressure and tubing pressure and realizes the opening and closing control to circulating valve.
Down-hole differential repeatedly circulating valve device; It has top connection and the lower contact that lays respectively at the device two ends and be used for being connected with underground equipment; And top connection one end connects and composes the inversion mechanism monolithic case through screw thread and transposition urceolus one end; Through being installed on the mandrel successively, mandrel wipes ring, transpositing pin, transposition sheath, back-moving spring, transposition ring, spline housing, clutch ring, spline pin, screw in the inversion mechanism monolithic case; The other end of transposition urceolus is connected with valve body through screw thread; Direct circulation seat, direct circulation cap, check ball, anti-circulation seat, the anti-cap that circulates, check ball are installed on the valve body, and piston is connected with mandrel through screw thread, and lower contact is connected with valve body through screw thread.
When the utility model was higher than a certain setting pressure difference of annular chamber liquid column hydrostatic pressure P when tubing pressure, mandrel was pushed upwardly.When the annular chamber liquid column hydrostatic pressure was higher than a certain setting pressure difference of tubing pressure P, mandrel was pushed down.The pressurization transposition number is by circulating valve upper end transposition system (Z-shaped groove) decision.Spline restriction mandrel motion on the instrument, the holding core axis hole moves back and forth between the hole up and down at valve body.Pressurization transposition instrument until reaching desired times just finally opens, cuts out.Be applicable to direct circulation and anti-cycle operation under the pressure control well of various all-pass footpath in the cased well, cycling is simple and convenient, safe and reliable.The utility model principle and novel structure are unique, realized repeatedly cycling switch function of circulating valve circulation port, and realized both can instead circulating (circulation from the casing annulus to the tubing string) also can be carried out direct circulation (circulation from the tubing string to the casing annulus) operation.The locking of positive reversing port switch free position before having realized going into the well.Realized the pressure reduction operation of circulating valve, reduced operating pressure, operation safe is reliable.
The technical scheme that the differential repeatedly circulating valve device in all-pass footpath adopts is: transpositing pin, transposition sheath, back-moving spring, transposition ring, mandrel, spline housing, transposition urceolus, clutch ring, spline pin constitute the inversion mechanism assembly; The lower contact that communicates with casing annulus, piston, mandrel constitute the pressure reduction mechanism assembly.
The utility model is compared with background technology has following characteristics: but the 1. inversion mechanism through the setting operation action frequency makes circulating valve realize being started to do exercises by disposable pass accomplishing that repeatedly circulation closes to start and operating; But 2, the circulating valve locking of circulation port state free position of going into the well; 3, both can instead circulate and also can carry out the direct circulation operation; 4, pressure reduction operation, pressure reduction does not change with the variation of factors such as well depth, well temperature, down-hole pressure, and operation safe is reliable.
Description of drawings
Fig. 1 is the utility model down-hole differential repeatedly circulating valve device general assembly structural representation.Figure number is explained as follows: 1, top connection; 2, mandrel is wiped ring; 3, support ring I; 4, o shape circle; 5, transpositing pin; 6, transposition sheath; 7, spring; 8, transposition ring; 9, mandrel; 10, spline housing; 11, valve urceolus; 12, taper bolt; 13, clutch ring; 14, spline pin; 15, screw; 16, valve body; 17, support ring II; 18, o shape circle; 19, direct circulation seat; 20, direct circulation cap; 21, check ball; 22, anti-circulation seat; 23, the anti-cap that circulates; 24, support ring III; 25, o shape circle; 26, lower contact; 27, piston is wiped ring; 28, piston; 29, o shape circle; 30, support ring IV; 31, annular chamber.
The direct circulation structural representation of the differential repeatedly circulating valve of Fig. 2 device.
The anti-loop structure sketch map of the differential repeatedly circulating valve of Fig. 3 device.
The specific embodiment
Down-hole described in the utility model differential repeatedly circulating valve device, structure is as shown in Figure 1, is made up of inversion mechanism, direct circulation mechanism, anti-cycling mechanism, pressure reduction mechanism.Top connection 1 connects and composes the inversion mechanism monolithic case through screw thread and transposition urceolus 11; Through being installed on the mandrel 9, mandrel wipes ring 2, transpositing pin 5, transposition sheath 6, back-moving spring 7, transposition ring 8, spline housing 10, clutch ring 13, spline pin 14, screw 15 in it; Valve body 16 is connected with transposition urceolus 11 through screw thread; Direct circulation seat 19, direct circulation cap 20, check ball 21, anti-circulation seat 22, the anti-cap 23 that circulates, check ball 21 are installed on the valve body 16; Piston 28 is connected with mandrel 9 through screw thread, and lower contact 26 connects and composes the utility model through screw thread and valve body 16.
Inversion mechanism is as shown in Figure 1, forms by the transposition of four parts is secondary.One pair is the transposition sheath 6 that has the transposition ring 8 of end face pawl and have transpositing pin 5; One pair is clutch ring 13 and spline pin 14 that has the end face pawl; One pair is spline housing 10 and the two groups of internal splines that all have the end face pawl at every end; One pair is to be changed by the Z-shaped groove of one-period, a locating slot and one group of external splines on the mandrel 9 to form.Its operating principle is: mandrel 9 moves upward under interior pressure effect, and sleeve pipe is applied to piston 28 annular pressure cavities and will promotes mandrel and move downward.Being inlaid into straight trough on the mandrel through the spline pin on the valve body realizes that mandrel only moves up and down and does not move in a circle in urceolus.。
On mandrel in three grooves, two Z-shaped grooves decision transposition numbers.Transpositing pin passes the transposition sheath and is inlaid in the Z-shaped groove on the mandrel, moves through mandrel and realizes transposition.
When mandrel moved up and down, the transposition sheath will be along the Z-shaped groove rotation of tilting.The transposition sheath drives the transposition ring, end face pawl on the transposition ring and the engagement of spline housing end face pawl.Spline housing is fixed with the clutch ring that has a spring.When the transposition a certain direction of hoop (angle) rotation, the end face pawl is with mesh splines cover rotation together, and clutch ring end face pawl and spline housing end face pawl are thrown off (skidding).When transposition hoop other direction (angle) when rotation, clutch ring end face pawl makes with the engagement of spline housing end face pawl that spline housing is fixing not to be rotated, and the transposition spring is compressed, and transposition ring end face pawl is thrown off (skidding) with spline housing end face pawl, and realization once replaces.
Let the realization work of transposition system with rotation mode like this.Spline is with two groups of built-in transposition splines.These splines move a certain amount of at every turn, and spline housing does not circle round when the end face pawl is thrown off (skidding).Valve body connects a clutch ring that equidirectional end face pawl is arranged as the transposition ring.All there is the end face pawl at the two ends of spline housing, and spline housing must not be retreated.When the transposition loopback changeed, spline housing received and does not pin down and can turn round, and the end face pawl of the spline housing other end will head on the end face pawl of clutch ring, kept spline housing motionless in position.
In place so that the instrument of spline correctly turns round, and mandrel flower top-notch player crosses the upper spline of spline housing, lets the hole on the mandrel aim at the reversing port on the valve body.Continuing the next cycle, will align with the direct circulation hole in the hole on the mandrel.
Direct circulation mechanism is made up of direct circulation seat 19, direct circulation cap 20, check ball 21 and the mandrel 9 installed on the valve body 16.Its operating principle is: circulating valve is at fastening position is gone into the well along with oil pipe and filling is the same with annular chamber fluid.Keep the oil pipe external and internal pressure consistent, circulating valve will rest on closes (assembling) position.When tubing pressure is higher than annular chamber liquid column hydrostatic pressure P when above, mandrel is pushed upwardly.Pressurization transposition is repeatedly opened direct circulation until reaching desired times.
Anti-cycling mechanism is made up of the anti-circulation seat of installing on the valve body 16 22, the anti-cap 23 that circulates, check ball 21 and mandrel 9.Its operating principle is: circulating valve is at fastening position is gone into the well along with oil pipe and filling is the same with annular chamber fluid.Keep the oil pipe external and internal pressure consistent, circulating valve will rest on closes (assembling) position.When the annular chamber liquid column hydrostatic pressure is higher than tubing pressure P when above, mandrel is pushed down.Pressurization transposition is repeatedly opened anti-circulation until reaching desired times.
Claims (4)
1. the differential repeatedly circulating valve in down-hole device; It is characterized in that: have the top connection (1) and the lower contact (26) that lay respectively at the device two ends and be used for being connected with underground equipment; And top connection (1) one end connects and composes the inversion mechanism monolithic case through screw thread and transposition urceolus (11) one ends; Through being installed on the mandrel (9) successively, mandrel wipes ring (2), transpositing pin (5), transposition sheath (6), back-moving spring (7), transposition ring (8), spline housing (10), clutch ring (13), spline pin (14), screw (15) in the inversion mechanism monolithic case; The other end of transposition urceolus (11) is connected with valve body (16) through screw thread; Valve body (16) is gone up direct circulation seat (19), direct circulation cap (20), check ball (21), anti-circulation seat (22), the anti-cap that circulates (23), check ball (21) is installed; Piston (28) is connected with mandrel (9) through screw thread, and lower contact (26) is connected with valve body (16) through screw thread.
2. down-hole according to claim 1 differential repeatedly circulating valve device is characterized in that: said inversion mechanism is formed by the transposition of four parts is secondary, and a pair is the transposition sheath (6) that has the transposition ring (8) of end face pawl and have transpositing pin (5); One pair is a clutch ring (13) and a spline pin (14) that has the end face pawl; One pair is spline housing (10) and the two groups of internal splines that all have the end face pawl at every end; One pair is that mandrel (9) upward is made up of the Z-shaped groove of one-period, a locating slot and one group of external splines.
3. differential repeatedly circulating valve device according to claim 1 is characterized in that direct circulation seat (19), direct circulation cap (20), check ball (21) and mandrel (9) composition direct circulation mechanism that valve body (16) is upward installed.
4. differential repeatedly circulating valve device according to claim 1 is characterized in that: valve body (16) is gone up anti-circulation seat (22), the anti-cap that circulates (23), check ball (21) and the mandrel (9) installed and is formed anti-cycling mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202977431U CN202266240U (en) | 2011-08-17 | 2011-08-17 | Underground differential-pressure repeated circulation valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202977431U CN202266240U (en) | 2011-08-17 | 2011-08-17 | Underground differential-pressure repeated circulation valve device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202266240U true CN202266240U (en) | 2012-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202977431U Expired - Fee Related CN202266240U (en) | 2011-08-17 | 2011-08-17 | Underground differential-pressure repeated circulation valve device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202266240U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628853A (en) * | 2013-11-06 | 2014-03-12 | 宝鸡瑞林石油机电设备有限责任公司 | Ball jumping type sliding sleeve device used under well |
| CN105239962A (en) * | 2015-09-17 | 2016-01-13 | 东北石油大学 | Drilling-while-fracturing downhole hydraulic control device |
| CN114687703A (en) * | 2020-12-29 | 2022-07-01 | 中国石油化工股份有限公司 | Once reverse circulation shut-in test valve |
-
2011
- 2011-08-17 CN CN2011202977431U patent/CN202266240U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628853A (en) * | 2013-11-06 | 2014-03-12 | 宝鸡瑞林石油机电设备有限责任公司 | Ball jumping type sliding sleeve device used under well |
| CN105239962A (en) * | 2015-09-17 | 2016-01-13 | 东北石油大学 | Drilling-while-fracturing downhole hydraulic control device |
| CN105239962B (en) * | 2015-09-17 | 2017-07-14 | 东北石油大学 | With brill with hydraulic control device under kill-job |
| CN114687703A (en) * | 2020-12-29 | 2022-07-01 | 中国石油化工股份有限公司 | Once reverse circulation shut-in test valve |
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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: 20120606 Termination date: 20160817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |