CN213654810U - Oil field is with outer plugging device that scurries of oil-water well pipe - Google Patents
Oil field is with outer plugging device that scurries of oil-water well pipe Download PDFInfo
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- CN213654810U CN213654810U CN202022188929.5U CN202022188929U CN213654810U CN 213654810 U CN213654810 U CN 213654810U CN 202022188929 U CN202022188929 U CN 202022188929U CN 213654810 U CN213654810 U CN 213654810U
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Abstract
The utility model discloses an oil-water well casing pipe external channeling blocking device, belonging to the technical field of oil-water well casing pipe external channeling treatment, in particular to an oil-water well casing pipe external channeling blocking device for an oil field, which comprises an insertion pipe type packer, an anti-return ash injection valve and a sealing insertion pipe, the sealing insertion pipe is arranged on the inner side wall of the anti-return ash injection valve, the sealing insertion pipe is matched with the anti-return ash injection valve to form a limiting sealing valve, an insertion pipe packer and the anti-return ash injection valve are connected into a whole and are put into a well to seal an oil layer, so as to prevent mortar from polluting a non-blocked oil layer, and the arrangement of the anti-reverse-discharge sealing valve can prevent mortar from reverse discharge after the completion of mortar injection, the ground can immediately carry out the next construction, meanwhile, the anti-reverse-flow sealing valve adopts a double-valve design, the sealing effect and the sealing reliability are improved in multiples, the construction safety and the construction efficiency are ensured, and the sealing insertion tube and the anti-reverse-flow sealing valve are matched to be sealed and limited with the anti-reverse-flow sealing valve after being inserted.
Description
Technical Field
The utility model relates to an oil-water well casing pipe is scurry outside of tubes and is administered technical field, specifically is an oil-water well is scurry plugging device outside of tubes for oil field.
Background
At present, along with the extension of the development time of an oil field, due to the influence of factors such as electrochemical corrosion, strong injection and strong recovery, high-temperature, high-pressure extrusion, sleeve milling operation and the like, a destructive effect is generated on a cement ring outside a sleeve, particularly, the cement ring is more prominent at an oil layer part, and interlayer channeling outside the sleeve is easy to generate, so that interlayer interference is caused, the normal production of an oil-water well is influenced, the high water content of the oil well is caused, and even the oil well is shut down due to water logging; the injected water of the water well is communicated among layers, the water cannot be injected into a target layer according to a plan during development and water injection, so that the water absorption of a target well section is less or even no, the water is not absorbed by the target well section, the water injection-free layer is reversely increased in pressure, the interlayer interference is aggravated, and the well control risk in the production and operation processes is also increased.
The current conventional channeling sealing technology mainly adopts the casing outside cement slurry to carry out general squeezing and channeling sealing, and in practical application, because the channeling interlayer pressure difference is large and sand is easy to generate, the casing outside cement ring damages serious influence due to mining, and the channeling sealing often generates accidents such as 'flag pole insertion', 'sausage blocking' and the like, and the main performance is as follows: firstly, sand is easy to generate between layers, and the accident that the sand clamps the pipe column is easy to cause; secondly, the inner wall of the interlayer sleeve is seriously corroded, and the packer is not tightly sealed; thirdly, plugging and leakage among multiple layers of layers, particularly, plugging and leakage among layers with small distance, which easily causes pollution of oil-water layers; fourthly, the existing channeling sealing tool cannot realize pressurized coagulation waiting, and the success rate and the quality of channeling sealing are not high.
At present, each oil field in China does not have a perfect channeling sealing process and a complete tool, and mainly depends on methods such as cement paste general squeezing or quick setting plugging agent chemical plugging, and from the using effect, the risk and the problem of channeling sealing construction are not well solved, so that the blocking device for oil-water well pipe outer channeling for the oil field is urgently needed.
SUMMERY OF THE UTILITY MODEL
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.
The utility model discloses in view of above-mentioned and/or the problem that exists among the existing oil field outside of tubes scurries the shutoff technology, the utility model discloses.
Therefore, the utility model aims at providing an oil field is with shutoff device is scurried to oil-water well outside of tubes can solve and seal risk and the hidden danger of scurring the construction existence, ensures to seal and scurries effect and success rate.
For solving the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme:
the utility model provides an oil field is with outer plugging device that scurries of oil-water well pipe which includes: the plug-in pipe type packer comprises a plug-in pipe type packer body, an anti-return ash injection valve and a sealing insertion pipe, wherein the inner side wall of the anti-return ash injection valve is arranged on the sealing insertion pipe, the sealing insertion pipe is matched with the anti-return ash injection valve to form a limiting sealing valve, the plug-in pipe type packer body is connected with a connecting piece, the anti-return ash injection valve is matched with the sealing insertion pipe to be arranged, the plug-in pipe type packer body comprises a connecting group, a setting piston, a sealing ring, a hydraulic cylinder, a setting pipe, a ball seat, a sheath, a locking joint and a slip, the anti-return ash injection valve body comprises a connecting seat, an upper valve seat, a steel ball, a ball seat I, a connecting spring, a valve sleeve, a spring seat, an intermediate joint and a lower valve seat.
As an oil field is with oil-water well outside of tubes scurrying plugging device's an optimal scheme, wherein: the connecting set comprises an upper joint and a lower joint, the upper joint is integrally formed at the end part of the left side of the intubating packer, and the lower joint is integrally formed at the end part of the right side of the intubating packer.
As an oil field is with oil-water well outside of tubes scurrying plugging device's an optimal scheme, wherein: the backflow-preventing ash injection valve is designed by adopting a double valve.
As an oil field is with oil-water well outside of tubes scurrying plugging device's an optimal scheme, wherein: and the outer side walls of the intubation type packer, the anti-backflow ash injection valve and the sealing intubation are coated with anti-corrosion layers.
As an oil field is with oil-water well outside of tubes scurrying plugging device's an optimal scheme, wherein: the connecting seat by prevent returning and tell grey valve both ends integrated into one piece's last connector and lower connector and constitute, just go up the connector with the lower connector cooperation sets up.
Compared with the prior art: the pipe inserting packer and the anti-back-spitting sealing valve are connected into a whole to be put into a well and are mainly used for sealing an oil layer to prevent mortar from polluting a non-sealed oil layer, the anti-back-spitting sealing valve is arranged to prevent mortar from back spitting after the mortar is injected, the ground can be immediately constructed in the next step, meanwhile, the anti-back-spitting sealing valve adopts a double-valve design, the sealing effect and the sealing reliability are improved in a double mode, the construction safety and the construction efficiency are guaranteed, the mortar is injected after the sealing pipe is inserted, the anti-back-spitting sealing valve can be automatically closed after the mortar is injected, the sealing pipe inserting pipe and the anti-back-spitting sealing valve are matched to be sealed and limited simultaneously after the sealing pipe inserting packer is inserted, the well is reversely washed by the sealing pipe inserting packer, the well is kept under pressure for waiting and.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor. Wherein:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the intubating packer of the utility model;
FIG. 3 is a schematic view of the structure of the anti-backflow ash-injection valve of the present invention;
fig. 4 is a schematic view of the sealing cannula structure of the present invention.
In the figure: 100 casing type packers, 110 connecting groups, 111 upper joints, 112 lower joints, 120 setting pistons, 130 sealing rings, 140 hydraulic cylinders, 150 setting pipes, 160 ball seats, 170 jackets, 180 locking joints, 190 slips, 200 anti-backflow ash injection valves, 210 connecting seats, 211 upper joints, 212 lower joints, 220 upper valve seats, 230 steel balls, 240 ball seats I, 250 connecting springs, 260 valve sleeves, 270 spring seats, 280 middle joints, 290 lower valve seats, 300 sealing insertion pipes, 310 connecting ends, 320 insertion pipes, 330 centralizing rings and 340 shearing pins.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways than those specifically described herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Next, the present invention will be described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, for convenience of explanation, the sectional view showing the device structure will not be enlarged partially according to the general scale, and the schematic drawings are only examples, and should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
The utility model provides an oil-water well is blocking device scurries outward from pipe, through the intubate packer with prevent returning to tell notes ash valve and be connected an organic whole in the well packing oil reservoir down, in order to avoid mortar to pollute non-shutoff oil reservoir, and prevent that the setting of anti-vomiting sealing valve can prevent that mortar from returning after notes ash is accomplished, ground can carry out construction on next step immediately, simultaneously, prevent returning to tell that the sealing valve adopts be the bivalve design, sealed effect and sealing reliability improve at double, guarantee construction safety and efficiency of construction, please refer to figure 1, include, intubate packer 100, prevent returning to tell notes ash valve 200 and sealed intubate 300.
Continuing to refer to fig. 1 and fig. 2, the stinger packer 100 is composed of a connection set 110, a setting piston 120, a seal ring 130, a hydraulic cylinder 140, a setting pipe 150, a ball seat 160, a sheath 170, a locking joint 180 and a slip 190, the connection set 110 comprises an upper joint 111 and a lower joint 112, the upper joint 111 is integrally formed at the left end of the stinger packer 100, the lower joint 112 is integrally formed at the right end of the stinger packer 100, the stinger packer 100 and an anti-backflow ash injection valve 200 are connected into a well and are mainly used for sealing an oil layer to prevent mortar from polluting a non-blocked oil layer, and an anchoring part mainly fixes a tool at a designed position to enable the ash injection to be accurate;
with continuing reference to fig. 1 and fig. 3, the anti-backflow ash injection valve 200 is composed of a connecting seat 210, an upper valve seat 220, a steel ball 230, a first ball seat 240, a connecting spring 250, a valve sleeve 260, a spring seat 270, an intermediate joint 280 and a lower valve seat 290, the connecting seat 210 is composed of an upper connector 211 and a lower connector 212 which are integrally formed at two end portions of the anti-backflow ash injection valve 200, the upper connector 211 and the lower connector 112 are arranged in a matched mode, the anti-backflow ash injection valve 200 is formed by adopting a double-valve design, the anti-backflow sealing valve 200 mainly has the function of preventing mortar backflow after ash injection is completed, the next construction can be immediately carried out on the ground, and the anti-backflow sealing valve 200 adopts the double-valve design, so that the sealing effect and the sealing reliability are improved in multiples, and the construction safety and;
with continuing reference to fig. 1 and 4, a sealing insertion tube 300 is arranged on the inner side wall of the anti-back-flow ash injection valve 200, the sealing insertion tube 300 is matched with the anti-back-flow ash injection valve 200 to form a limiting sealing valve, the sealing insertion tube 300 is composed of a connecting end 310, an insertion tube 320, a righting ring 330 and a shearing pin 340, the sealing insertion tube 300 is mainly matched with the anti-back-flow sealing valve 200 to seal and limit at the same time after being inserted, after the injection of the channeling blocking agent is finished, the sealing insertion tube 300 is lifted out of the back-flushing well of the insertion tube type packer 100, and the packer is subjected to pressure waiting and setting, so;
the working principle is as follows: when the utility model is used, the intubation packer 100 and the anti-return ash injection valve 200 are connected into a whole and are put into a well, which is mainly used for sealing an oil layer, so as to prevent mortar from polluting a non-blocked oil layer, and the anti-reverse-discharge sealing valve 200 can prevent mortar from reverse discharge after the completion of mortar injection, the ground can be immediately subjected to the next construction, meanwhile, the anti-reverse-flow sealing valve 200 adopts a double-valve design, the sealing effect and the sealing reliability are improved by times, the construction safety and the construction efficiency are ensured, and the sealing cannula 300 is inserted for injecting ash, the anti-reverse-flow sealing valve 200 is automatically closed after the ash injection is finished, the sealing cannula 300 and the anti-reverse-flow sealing valve 200 are matched to be sealed and limited with the anti-reverse-flow sealing valve 200 after being inserted, the channeling blocking agent is injected completely, and the sealing cannula 300 is subjected to waiting coagulation under pressure after being lifted out of the back washing well of the cannula type packer 100, so that the occurrence of the accident of pipe column clamping is avoided.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (5)
1. The utility model provides an oil field is with outer shutoff device that scurries of oil-water well pipe which characterized in that includes: the packer comprises an intubating type packer (100), an anti-return ash injection valve (200) and a sealing insertion pipe (300), wherein the inner side wall of the anti-return ash injection valve (200) is provided with the sealing insertion pipe (300), the sealing insertion pipe (300) is matched with the anti-return ash injection valve (200) to form a limiting sealing valve, the intubating type packer (100) is connected with a connecting piece which is matched with the sealing insertion pipe (300) and provided with the anti-return ash injection valve (200), the intubating type packer (100) comprises a connecting group (110), a setting piston (120), a sealing ring (130), a hydraulic cylinder (140), a setting pipe (150), a ball seat (160), a sheath (170), a locking joint (180) and a slip (190), and the anti-return ash injection valve (200) is formed by a connecting seat (210), an upper valve seat (220), a steel ball (230), a ball seat I (240), a connecting spring (250), a valve sleeve (260), The sealing plug-in pipe (300) comprises a spring seat (270), an intermediate joint (280) and a lower valve seat (290), and the sealing plug-in pipe (300) comprises a connecting end head (310), a plug-in pipe (320), a righting ring (330) and a shearing pin (340).
2. The oilfield oil and water well tubular external channeling and plugging device according to claim 1, wherein the connection set (110) comprises an upper connector (111) and a lower connector (112), the upper connector (111) is integrally formed at the left side end of the intubating packer (100), and the lower connector (112) is integrally formed at the right side end of the intubating packer (100).
3. The oil-water well pipe external channeling plugging device for the oil field according to claim 1, wherein the backflow preventing ash injection valve (200) is designed by adopting a double valve.
4. The device for plugging the outer pipe of the oil-water well for the oil field according to the claim 1, wherein the outer side walls of the intubating type packer (100), the anti-backflow ash injection valve (200) and the sealing intubating pipe (300) are coated with an anti-corrosion layer.
5. The oil field oil-water well pipe external channeling plugging device as claimed in claim 2, wherein said connection seat (210) is composed of an upper connection head (211) and a lower connection head (212) which are integrally formed at two ends of said anti-backflow ash injection valve (200), and said upper connection head (211) and said lower connection head (112) are arranged in a matching manner.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022188929.5U CN213654810U (en) | 2020-09-29 | 2020-09-29 | Oil field is with outer plugging device that scurries of oil-water well pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022188929.5U CN213654810U (en) | 2020-09-29 | 2020-09-29 | Oil field is with outer plugging device that scurries of oil-water well pipe |
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| CN213654810U true CN213654810U (en) | 2021-07-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109329A (en) * | 2021-12-01 | 2022-03-01 | 东北石油大学 | Injection-production same-well device and injection-production same-well system |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109329A (en) * | 2021-12-01 | 2022-03-01 | 东北石油大学 | Injection-production same-well device and injection-production same-well system |
| CN114109329B (en) * | 2021-12-01 | 2022-10-04 | 东北石油大学 | Injection-production same-well device and injection-production same-well system |
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