CN203188963U - In-pipe packer for oil drivepipe leakproofness detection - Google Patents
In-pipe packer for oil drivepipe leakproofness detection Download PDFInfo
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- CN203188963U CN203188963U CN 201320156683 CN201320156683U CN203188963U CN 203188963 U CN203188963 U CN 203188963U CN 201320156683 CN201320156683 CN 201320156683 CN 201320156683 U CN201320156683 U CN 201320156683U CN 203188963 U CN203188963 U CN 203188963U
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- packer
- piston
- tubing
- pipe
- oil
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Abstract
The utility model relates to an in-pipe packer for oil drivepipe leakproofness detection. The in-pipe packer for the oil drivepipe leakproofness detection is characterized by comprising a body. A connecting sleeve, a piston sleeve, a piston shaft and a regulating sleeve are symmetrically assembled on the middle portion of the body in sequence. A locking sleeve is arranged at one end of the body. A locking head is arranged at the other end of the body. A rubber sleeve is installed on the piston shaft. One end of the body is connected with the locking head. The locking head is connected with a suspension head. A lifting head which is connected with a steel wire rope is installed inside the suspension head. A spring used for automatically resetting the rubber sleeve is installed between the piston sleeve and the piston shaft. Pressure transmitting channels which are connected with two pressure pipelines respectively are formed in the body in the axial direction. The in-pipe packer for the oil drivepipe leakproofness detection has the advantages that the in-pipe packer is matched with corresponding detection equipment for use, the in-pipe packer can be set in an oil drivepipe and high pressure gas is used for sealing examination so that the problem existing in deep-water high-pressure oil and gas well oil drivepipe leakproofness detection can be effectively solved, and the in-pipe packer for the oil drivepipe leakproofness detection is detection equipment which is safe, reliable and convenient to use for deep water and high-pressure oil and gas well exploitation service in China.
Description
Technical field
The utility model belongs to flow string tightness detection technique field in the oil field development, particularly relates to a kind of tubing and casing sealing and detects with packer in the pipe.
Background technology
Be accompanied by China's rapid development of economy and oil-gas mining continuous advancement in technology, the big deep water of former exploitation difficulty, high-pressure oil-gas well resource exploitation are obtained increasing the attention.Yet the exploitation of deep water, high-pressure oil-gas well is different from open well exploitation, and particularly the sealing requirements of oil pipe, sleeve pipe is very harsh to down-hole string for it, must check each root to go into the sealing of well tubing and casing screw thread.
At present, the operational method of the check tubing and casing screw thread sealing that the conventional oil gas well adopts is: after the operating personnel is lowered to about 50 tubing and casing earlier, drop into blanking plug, carry out water test.Bubble-tight requirement differs greatly to tubing and casing for the testing accuracy of this method and effect and deep water, high-pressure oil-gas well, and is well-known, and the water test check is suitable low pressure and fluid tightness check only, and is not suitable for high pressure, gas tightness check.So need exploitation one cover to be applicable to that the method and apparatus that deep water, high-pressure oil-gas well tubing and casing tightness detect seems particularly urgent and significant.
The utility model content
The tubing and casing sealing that the utility model can set, use high pressure gas to experience envelope in tubing and casing for the technical problem that exists in the solution known technology provides a kind of detects with packer in managing.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
The tubing and casing sealing detects with packer in the pipe, comprise body, described body adopts laterally zygomorphic center spindle structure, symmetry is equipped with adapter sleeve, piston bush, the axis of the piston and is used for adjusting the regulating sleeve of packing element combination assembling length and external diameter successively in the middle part of body, one end of body is provided with that the axis of the piston produces axially movable lock sleeve when preventing packer set, the body other end is provided with that the axis of the piston produces axially movable locking head when preventing packer set, on the described the axis of the piston packing element is housed;
Described body one end connects locking head, and locking head connects hanging head, in described hanging head inside the poppet that is connected with wire rope is housed;
Be equipped with between described piston bush and the axis of the piston for the automatically reset spring of packing element;
Described body shaft upwards is shaped on the pressure transmission passage that is connected with two pressure lines respectively.
The utility model can also adopt following technical scheme:
Described two packing elements adopt the structure that is symmetrically distributed up and down, can realize the sealing of annular space between packer and the tubing and casing by single packing element.
Described body shaft upwards is set side by side with two pressure transmission passages, and wherein a pressure transmission passage is the hydraulic setting passage, and another pressure transmission passage is that high pressure gas is experienced the envelope passage, and described pressure transmission passage is connected with pressure line respectively.
The entrance of described two pressure transmission passages all is located at the upper end of body, and described hydraulic setting passage is provided with two outlets, is communicated with upper piston chamber, the lower piston chambers of body respectively, and described high pressure gas is experienced the envelope channel outlet and is arranged between two packing elements on the body.
Be provided with in the described packing element and prevent it by the stopping means of excessive compression, its concrete structure is for all to be equipped with metal supporting rings at the packing element two ends.
Be shaped on generation negative pressure in the time of to prevent the packer deblocking on the described the axis of the piston and influence the pressure equalisation passage that packing element resets.
By the packing element support ring packing element is housed on the described the axis of the piston.
Described hanging head upper end is shaped on be used to the bell structure of blocking poppet.
Described hanging head and described locking head adopt the bayonet socket syndeton.
Advantage and the good effect that the utlity model has are: because the utility model adopts technique scheme, during operation, utilize wire rope that this packer is lowered into tubing and casing inside, make the tubing and casing thread be in last packing element and the lower rubber cylinder position intermediate of this packer, pressurize in the hydraulic setting passage by pressure line again, make that upwards packing element is gone up in extruding to upper piston, lower piston pushes lower rubber cylinder downwards, thereby realize that packer setting is on the tubing and casing inwall.After packer setting was finished, it was constant to keep setting channel pressure, experienced in the envelope passage to high pressure gas and injected gases at high pressure, and whether utilize checkout equipment can detect the sealing of tubing and casing screw thread good.During the end of job, the discharge line internal pressure, packing element rebounds automatically, and packer is realized deblocking.This packer and the corresponding supporting use of checkout equipment can effectively solve the problem of present deep water, high-pressure oil-gas well tubing and casing tightness detection existence, are China's deep water, high-pressure oil gas well development service.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1, wire rope; 2, poppet; 3, hanging head; 4, locking head; 5, regulating sleeve; 6, the axis of the piston; 7, packing element support ring; 8, packing element; 9, spring; 10, piston bush; 11, adapter sleeve; 12, body; 13, lock sleeve; 14, hydraulic setting passage; 15, high pressure gas is experienced the envelope passage; 16, pressure equalisation passage.
The specific embodiment
For further understanding utility model content of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1, the tubing and casing sealing detects with packer in the pipe, comprises body 12, and described body adopts laterally zygomorphic center spindle structure, and symmetry is equipped with adapter sleeve 11, piston bush 10, the axis of the piston 6 and regulating sleeve 5 successively in the middle part of body.One end of described body is provided with that the axis of the piston produces axially movable lock sleeve 13 when preventing packer set, the body other end is provided with that the axis of the piston produces axially movable locking head 4 when preventing packer set, described lock sleeve 13, locking head 4 and described regulating sleeve 5, form double nut to tightening fixing structure, the axis of the piston 6 produces mobile when preventing packer setting.Packing element 8 is housed on the described the axis of the piston, in the present embodiment, by packing element support ring 7 packing element is housed on the described the axis of the piston, described two packing elements adopt the structure that is symmetrically distributed up and down, can realize the sealing of annular space between packer and the tubing and casing by single packer.Described regulating sleeve 5 is used for adjusting packing element combination assembling length and external diameter.
Described body is equipped with and connects locking head 4 on the end of regulating sleeve 5, locking head connects hanging head 3, the poppet 2 that is connected with wire rope 1 is housed in described hanging head inside, in the present embodiment, described hanging head upper end is shaped on be used to the bell structure of blocking poppet, can utilize the conical surface of hanging head inside to block described poppet, described hanging head 3 adopts the bayonet socket syndeton with described locking head 4.
Be equipped with between described piston bush and the axis of the piston for the automatically reset spring 9 of packing element, after setting pressure release, packing element automatically resets under the effect of spring force, makes the packer deblocking.
Described body 12 is shaped on the pressure transmission passage that is connected with two pressure lines respectively on axially, in the present embodiment, described body shaft upwards is set side by side with two pressure transmission passages, and wherein a pressure transmission passage is hydraulic setting passage 14, and another pressure transmission passage is that high pressure gas is experienced envelope passage 15.The entrance of described two pressure transmission passages all is located at the upper end of body, and described hydraulic setting passage is provided with two outlets, is communicated with upper and lower two piston chamber of body respectively, and described high pressure gas is experienced the envelope channel outlet and is arranged between two packing elements on the body.
Be provided with in the described packing element and prevent it by the stopping means of excessive compression, its concrete structure is for all to be equipped with metal supporting rings at the packing element two ends.
Be shaped on generation negative pressure in the time of to prevent the packer deblocking on the described the axis of the piston 6 and influence the pressure equalisation passage 16 that packing element resets.
Operating principle of the present utility model is:
See also Fig. 1, during operation, this packer cooperates the gas leakage detection equipment to use, after button on the tubing and casing silk finishes, use wire rope 1 that this packer is lowered in the tubing and casing earlier, make a packing element 8 of packer be in tubing and casing screw thread upper part, another packing element 8 is in position under the tubing and casing screw thread; Suppress in the hydraulic setting pressure channel 14 of packer by pressure line, piston bush 10 is pushed to one side of lower rubber cylinder 8 under the effect of fluid pressure again; Simultaneously, because the double nut between locking head 4 and regulating sleeve 5 and lock sleeve 13 and the regulating sleeve 5 is to tightening fixing structure, make the axis of the piston to move, therefore, packing element is subjected to the thrust of piston bush 10, and packing element swells and sets, thereby realize that packer setting is on the tubing and casing inwall, after packer setting is finished, keep the hydraulic setting channel pressure constant, with packer and the sealing of tubing and casing annular space.
At this moment, experience envelope passage 15 to the packer high pressure gas again and inject high pressure detection gas, high pressure detects packer and the tubing and casing annular space that gas enters two packing elements, 8 sealings up and down; Whether use special inspecting equipment to detect afterwards has gas to reveal from the tubing and casing screwed connection.
After detecting the end of job, discharge hydraulic setting and high pressure gas and experience the interior pressure of envelope passage, simultaneously, owing to be shaped on pressure equalisation passage 16 at the axis of the piston, avoid causing negative pressure, packing element is resetted under the effect of spring 9, the automatic deblocking of packer, re-use wire rope packer is tripped out in tubing string, proceed tubing and casing and be lowered to operation.
Claims (9)
1. a tubing and casing sealing detects with packer in the pipe, it is characterized in that: comprise body, described body adopts laterally zygomorphic center spindle structure, symmetry is equipped with adapter sleeve, piston bush, the axis of the piston and is used for adjusting the regulating sleeve of packing element combination assembling length and external diameter successively in the middle part of body, one end of body is provided with that the axis of the piston produces axially movable lock sleeve when preventing packer set, the body other end is provided with that the axis of the piston produces axially movable locking head when preventing packer set, on the described the axis of the piston packing element is housed;
Described body one end connects locking head, and locking head connects hanging head, in described hanging head inside the poppet that is connected with wire rope is housed;
Be equipped with between described piston bush and the axis of the piston for the automatically reset spring of packing element;
Described body shaft upwards is shaped on the pressure transmission passage that is connected with two pressure lines respectively.
2. tubing and casing sealing according to claim 1 detects with packer in the pipe, it is characterized in that: described two packing elements adopt the structure that is symmetrically distributed up and down, can realize the sealing of annular space between packer and the tubing and casing by single packer.
3. tubing and casing sealing according to claim 1 detects with packer in the pipe, it is characterized in that: described body shaft upwards is set side by side with two pressure transmission passages, wherein a pressure transmission passage is the hydraulic setting passage, and another pressure transmission passage is that high pressure gas is experienced the envelope passage.
4. tubing and casing sealing according to claim 3 detects with packer in the pipe, it is characterized in that: the entrance of described two pressure transmission passages all is located at the upper end of body, described hydraulic setting passage is provided with two outlets, be communicated with upper piston chamber, the lower piston chambers of body respectively, described high pressure gas is experienced the envelope channel outlet and is arranged between two packing elements on the body.
5. tubing and casing sealing according to claim 1 detects with packer in the pipe, and it is characterized in that: be provided with in the described packing element and prevent it by the stopping means of excessive compression, its concrete structure is for all to be equipped with metal supporting rings at the packing element two ends.
6. tubing and casing sealing according to claim 1 detects with packer in the pipe, it is characterized in that: be shaped on the described the axis of the piston and produce negative pressure in the time of can preventing the packer deblocking and influence the pressure equalisation passage that packing element resets.
7. tubing and casing sealing according to claim 1 detects with packer in the pipe, it is characterized in that: by the packing element support ring packing element is housed on the described the axis of the piston.
8. tubing and casing sealing according to claim 1 detects with packer in the pipe, it is characterized in that: described hanging head upper end is shaped on be used to the bell structure of blocking poppet.
9. tubing and casing sealing according to claim 8 detects with packer in the pipe, and it is characterized in that: described hanging head and described locking head adopt the bayonet socket syndeton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320156683 CN203188963U (en) | 2013-04-01 | 2013-04-01 | In-pipe packer for oil drivepipe leakproofness detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320156683 CN203188963U (en) | 2013-04-01 | 2013-04-01 | In-pipe packer for oil drivepipe leakproofness detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203188963U true CN203188963U (en) | 2013-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320156683 Expired - Lifetime CN203188963U (en) | 2013-04-01 | 2013-04-01 | In-pipe packer for oil drivepipe leakproofness detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203188963U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216209A (en) * | 2013-04-01 | 2013-07-24 | 中国海洋石油总公司 | Pipe interior packer for detecting sealing property of oil sleeve |
| CN105507855A (en) * | 2014-09-24 | 2016-04-20 | 中国石油化工股份有限公司 | Apparatus for producing reservoir exploitation passageway |
| CN105507867A (en) * | 2014-09-24 | 2016-04-20 | 中国石油化工股份有限公司 | Apparatus and method for producing borehole fissures |
-
2013
- 2013-04-01 CN CN 201320156683 patent/CN203188963U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216209A (en) * | 2013-04-01 | 2013-07-24 | 中国海洋石油总公司 | Pipe interior packer for detecting sealing property of oil sleeve |
| CN103216209B (en) * | 2013-04-01 | 2015-10-21 | 中国海洋石油总公司 | Packer in tubing and casing sealing propertytest pipe |
| CN105507855A (en) * | 2014-09-24 | 2016-04-20 | 中国石油化工股份有限公司 | Apparatus for producing reservoir exploitation passageway |
| CN105507867A (en) * | 2014-09-24 | 2016-04-20 | 中国石油化工股份有限公司 | Apparatus and method for producing borehole fissures |
| CN105507855B (en) * | 2014-09-24 | 2018-03-02 | 中国石油化工股份有限公司 | A kind of device for being used to generate storage exploitation runner |
| CN105507867B (en) * | 2014-09-24 | 2018-07-13 | 中国石油化工股份有限公司 | A kind of device and method for generating wellbore crack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130911 Effective date of abandoning: 20151021 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |