CN203114246U - Stratigraphic isolating valve of oil-water well - Google Patents
Stratigraphic isolating valve of oil-water well Download PDFInfo
- Publication number
- CN203114246U CN203114246U CN 201220678919 CN201220678919U CN203114246U CN 203114246 U CN203114246 U CN 203114246U CN 201220678919 CN201220678919 CN 201220678919 CN 201220678919 U CN201220678919 U CN 201220678919U CN 203114246 U CN203114246 U CN 203114246U
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- China
- Prior art keywords
- valve ball
- oil
- water well
- isolation valves
- formation isolation
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Abstract
The utility model discloses a stratigraphic isolating valveof an oil-water well. The stratigraphic isolating valve comprises an upper connector, a locating sleeve, an outer sleeve and a lower connector which are sequentially connected from top to bottom, wherein two slots are formed in the inner wall of the locating sleeve, locking blocks are placed in the slots, and the two locking blocks in the locating sleeve are provided with guide-in cylinders and sliding cylinders which are connected; a rectangular slot is formed in the lower end of each sliding cylinder and is connected with a connecting rod at the lower part of each corresponding sliding cylinder through a pin, each connecting rod is located in a valve ball sleeve assembly in the inner part of the outer sleeve, each valve ball sleeve assembly is further provided with a valve ball, and a fan-shaped slot is formed in the right end of each valve ball and is hinged with the other end of the correspondingconnecting rod through a pin. The stratigraphic isolating valve of the oil-water well can be mounted on a well completion branch pipe or hung above an oil layer to be protected through a hanging packer, and the stratigraphic isolating valve can be opened or closed by a tool carried at the lower end of a working oil pipe, so that the lower oil layer can be exploited or sealed.
Description
Technical field
The utility model relates to the oil-water well downhole tool, specifically a kind of oil-water well formation isolation valves.
Background technology
Along with oil field development is progressively shifted to meticulous exploitation; control and oil layer protection to oil well require more and more higher; oil well is carried out in the production processing procedures such as well-flushing, fracture acidizing thus; usually need oil reservoir and well in operation section are kept apart; can realize snubbing serving on the one hand; can realize oil layer protection on the other hand, prevent problems such as oil layer pollution.But do not have special isolating tool at present, make isolation work seem too numerous and diverse.
In view of this, at the problems referred to above, a kind of oil-water well formation isolation valves reasonable in design and that solved above-mentioned disappearance is proposed.
Summary of the invention
The purpose of this utility model is to provide a kind of oil-water well formation isolation valves; can be installed on the completion casing or hang over by hanging packer the oil reservoir top that will protect; the TO that carries by the operation tubing lower end or close formation isolation valves carries out below reservoir exploitation or sealing.
In order to reach above-mentioned purpose, the utility model has adopted following technical scheme, a kind of oil-water well formation isolation valves, comprise the top connection that connects successively from top to bottom, positioning sleeve, overcoat, lower contact, described positioning sleeve inwall is offered two grooves, settle lock dog in the groove, and inner two lock dog places are provided with importing tube and the slide cartridge that links together at positioning sleeve, rectangular channel is opened in described slide cartridge lower end, be connected by pin with the connecting rod of below, described connecting rod is in the valve ball cover assembly of overcoat inside, also is provided with valve ball in the valve ball cover assembly, the valve ball right-hand member is opened fan groove, and is also hinged by pin with the other end of connecting rod.
The inner chamber that described importing tube and slide cartridge constitute is provided with lock tube, the outer middle side part of this lock tube is offered the annulus platform of outside protrusion, described annulus platform both ends of the surface up and down forms cavity respectively and between importing tube and the slide cartridge, in two cavitys, all install retainer spring, namely import tube and slide cartridge lock dog, two retainer springs and lock tube are limited in the positioning sleeve.
Described lock tube inside arranges groove, and the annulus platform of described protrusion withstands lock dog, realizes that the location of slide cartridge is locked.
Described valve ball cover assembly is fastened by two valve balls covers up and down and forms, and perforate is also passed the valve ball axle in the middle of the described valve ball, and valve ball forms mutual support by the semicircle orifice that valve ball axle and valve ball put.
Described upper valve ball cover Internal Spherical Surface arranges a triangular groove, steps down for the connecting rod in the motion.
Described valve ball cover below is connected with sealing shroud, cylindrical groove is opened on described sealing shroud top, built-in external seal guard ring, special-shaped seal ring and interior seal retainer, sealing shroud below arranges Packing spring and leans on up the valve ball by Packing spring, seal groove is established in outside, sealing shroud lower end, by the sealing ring in the groove and the sealing of lower contact inner cylinder face portion.
Described sealing shroud bottom arranges elongated tubular, and described Packing spring just is placed in the annular space between elongated tubular and the lower contact.
Described elongated tubular is divided into two elongated tubulars up and down, and diameter is different also to be staggered mutually.
Step is established in inside, described lower contact upper end, and step is placed spring washer, and the elongated tubular of described bottom is located in the spring washer top, and lower contact inside arranges downward circular cone inclined-plane, and the instrument of being convenient to moves up and down in formation isolation valves.
Compared to prior art, the utlity model has following beneficial effect:
1, the switching tools by disposing under the tubing string, with opening with closing formation isolation valves, the protection oil reservoir avoids polluting;
2, suitable oil-water well bottom hole pressure difference scope is big, and pressure is more big, and the isolating seal effect is more good;
3, uncontrolled line (cable or liquid controling pipe line) is simple in structure, the reliability height.
Description of drawings
Accompanying drawing 1 is a kind of oil-water well formation isolation valves structural representation of the present utility model;
Fig. 2 is the epimere partial enlarged drawing of Fig. 1;
Fig. 3 is the hypomere partial enlarged drawing of Fig. 1.
Among the figure: top connection 1, positioning sleeve 2, importing tube 3, retainer spring 4, lock dog 5, slide cartridge 6, lock tube 7, pin 8,13, valve ball cover 9,17, connecting rod 10, overcoat 11, valve ball 12, external seal guard ring 14, special-shaped seal ring 15, interior seal retainer 16, sealing shroud 18, sealing ring 19, Packing spring 20, spring washer 21 and lower contact 22.
The specific embodiment
Relevant detailed description of the present utility model and technology contents, conjunction with figs. is described as follows, however accompanying drawing only provides the usefulness of reference with explanation, and the utility model is limited.
With reference to accompanying drawing 1-3, a kind of oil-water well formation isolation valves, positioning sleeve 2 is threaded with top connection 1 and overcoat 11, positioning sleeve 2 middle parts arrange two grooves, settle lock dog 5, described importing tube 3 is threaded with slide cartridge 6,5, two retainer springs 4 of lock dog and lock tube 7 are limited in the positioning sleeve 2, and rectangular channel is opened in described slide cartridge 6 lower ends, be connected by pin 8 with connecting rod 10, described valve ball 12 right-hand members are opened fan groove, are connected with connecting rod 10 by pin 13, and valve ball 12 places two valve balls cover 9, in 17, by valve ball axle and valve ball cover 9, semicylindrical opening on 17 cooperates support, cylindrical groove is opened on described sealing shroud 18 tops, built-in external seal guard ring 14, special-shaped seal ring 15 and interior seal retainer 16, and lean on valve ball 12 by Packing spring 20, seal groove is established in outside, sealing shroud 18 lower end, by sealing ring 19 and the sealing of lower contact 22 inner cylinder face portions, elongated tubular is established in the bottom, and Packing spring 20 is placed lower contact 22 inside, elongated tubular is established in described spring washer 21 upper ends, staggers with sealing shroud 18 elongated tubulars.
Lock tube 7 inside arrange groove, are formation isolation valves opener contact position, external cylindrical surface two step place placement positioning springs 4, and outer trapezoidal projection can be withstood lock dog 5, realizes that the location of slide cartridge 6 is locked.Upper valve ball cover 9 Internal Spherical Surface arrange a triangular groove, step down for the connecting rod 10 in the motion.Lower contact 22 upper ends are connected with overcoat 11, establish step on the inside, place spring washer 21, divide into the inclined-plane, and the instrument of being convenient to moves up and down in formation isolation valves.
The method of operating of closing formation isolation valves is: transfer switching tools touching formation isolation valves lock tube 7 inner groovies, on carry switching tools and drive on the lock tube 7 and move, on move past in the journey, lock dog 5 is because receiving in the inclined-plane to slide cartridge 6 grooves, drop on below the trapezoidal projection of lock tube on the face of cylinder, make slide cartridge 6 break away from locking states, move in the continuation, lock tube 7 promotes to import tube 3 and slide cartridge 6 and moves on together, and slide cartridge 6 drives valve balls 12 by connecting rod 10 and upwards progressively rotates.On importing tube 3, move to when touching top connection 1 lower surface, withdraw switching tools, lock tube 7 mediates again under the effect of two retainer springs 4, push lock dog 5 and enter the last groove of positioning sleeve 2 inner cylinder faces, at this moment, valve ball 12 has been rotated counterclockwise 90 degree under connecting rod 10 drives, be in closed condition, realizes the buffer action of formation isolation valves.When needs are produced oil reservoir, the method of operating of opening formation isolation valves is the converse process of closing formation isolation valves, transfer switching tools, touching formation isolation valves lock tube 7 inner groovies continue to transfer switching tools drive lock tube 7 and move down, lock dog 5 is because receiving in the inclined-plane to slide cartridge 6 grooves, drop on below the trapezoidal projection of lock tube on the face of cylinder, make slide cartridge 6 break away from locking states, continue to move down, lock tube 7 promotes to import tube 3 and slide cartridge 6 moves down together, and slide cartridge 6 drives valve ball 12 by connecting rod 10 and progressively rotates downwards.On importing tube 3, move to when touching positioning sleeve 2 inner conical surfaces, continue to move down switching tools, lock tube 7 mediates under the effect of two retainer springs 4, push lock dog 5 and enter the next groove of positioning sleeve 2 inner cylinder faces, at this moment, valve ball 12 90 degree that turned clockwise under connecting rod 10 drives are in opening, and can carry out mining operations this moment to the oil reservoir of isolating.
The above only is preferred embodiment of the present utility model, and non-in order to limit claim of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to claim of the present utility model.
Claims (1)
1. oil-water well formation isolation valves, it is characterized in that, comprise the top connection, positioning sleeve, overcoat, the lower contact that connect successively from top to bottom, described positioning sleeve inwall is offered two grooves, settle lock dog in the groove, and inner two lock dog places are provided with importing tube and the slide cartridge that links together at positioning sleeve, rectangular channel is opened in described slide cartridge lower end, be connected by pin with the connecting rod of below, described connecting rod is in the valve ball cover assembly of overcoat inside, also be provided with valve ball in the valve ball cover assembly, the valve ball right-hand member is opened fan groove, and is also hinged by pin with the other end of connecting rod.
2. a kind of oil-water well formation isolation valves according to claim 1, it is characterized in that, the inner chamber that described importing tube and slide cartridge constitute is provided with lock tube, the outer middle side part of this lock tube is offered the annulus platform of outside protrusion, described annulus platform both ends of the surface up and down forms cavity respectively and between importing tube and the slide cartridge, in two cavitys, all install retainer spring, namely import tube and slide cartridge lock dog, two retainer springs and lock tube are limited in the positioning sleeve.
3. a kind of oil-water well formation isolation valves according to claim 2 is characterized in that, described lock tube inside arranges groove, and the annulus platform of described protrusion withstands lock dog, realizes that the location of slide cartridge is locked.
4. a kind of oil-water well formation isolation valves according to claim 1, it is characterized in that, described valve ball cover assembly is fastened by two valve balls covers up and down and forms, and perforate is also passed the valve ball axle in the middle of the described valve ball, and valve ball forms mutual support by the semicircle orifice that valve ball axle and valve ball put.
5. a kind of oil-water well formation isolation valves according to claim 4 is characterized in that, described upper valve ball cover Internal Spherical Surface arranges a triangular groove, steps down for the connecting rod in the motion.
6. a kind of oil-water well formation isolation valves according to claim 1, it is characterized in that, described valve ball cover below is connected with sealing shroud, cylindrical groove is opened on described sealing shroud top, built-in external seal guard ring, special-shaped seal ring and interior seal retainer, sealing shroud below arranges Packing spring and leans on up the valve ball by Packing spring, and seal groove is established in outside, sealing shroud lower end, seals with lower contact inner cylinder face portion by the sealing ring in the groove.
7. a kind of oil-water well formation isolation valves according to claim 6 is characterized in that, described sealing shroud bottom arranges elongated tubular, and described Packing spring just is placed in the annular space between elongated tubular and the lower contact.
8. a kind of oil-water well formation isolation valves according to claim 7 is characterized in that, described elongated tubular is divided into two elongated tubulars up and down, and diameter is different also to be staggered mutually.
9. a kind of oil-water well formation isolation valves according to claim 8, it is characterized in that, step is established in inside, described lower contact upper end, step is placed spring washer, the elongated tubular of described bottom is located in the spring washer top, lower contact inside arranges downward circular cone inclined-plane, and the instrument of being convenient to moves up and down in formation isolation valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220678919 CN203114246U (en) | 2012-12-11 | 2012-12-11 | Stratigraphic isolating valve of oil-water well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220678919 CN203114246U (en) | 2012-12-11 | 2012-12-11 | Stratigraphic isolating valve of oil-water well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203114246U true CN203114246U (en) | 2013-08-07 |
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ID=48894606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220678919 Expired - Fee Related CN203114246U (en) | 2012-12-11 | 2012-12-11 | Stratigraphic isolating valve of oil-water well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203114246U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111502587A (en) * | 2020-04-15 | 2020-08-07 | 中国海洋石油集团有限公司 | Remotely opened stratum isolation tool for deep well |
-
2012
- 2012-12-11 CN CN 201220678919 patent/CN203114246U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111502587A (en) * | 2020-04-15 | 2020-08-07 | 中国海洋石油集团有限公司 | Remotely opened stratum isolation tool for deep well |
| CN111502587B (en) * | 2020-04-15 | 2021-12-17 | 中国海洋石油集团有限公司 | Remotely opened stratum isolation tool for deep well |
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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: 20130807 Termination date: 20151211 |
|
| EXPY | Termination of patent right or utility model |