CN207795140U - It is a kind of from swollen envelope washing well underground leak stoppage tool - Google Patents
It is a kind of from swollen envelope washing well underground leak stoppage tool Download PDFInfo
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- CN207795140U CN207795140U CN201820159344.0U CN201820159344U CN207795140U CN 207795140 U CN207795140 U CN 207795140U CN 201820159344 U CN201820159344 U CN 201820159344U CN 207795140 U CN207795140 U CN 207795140U
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- conical surface
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Abstract
The utility model is related to a kind of from swollen envelope washing well underground leak stoppage tool.Mainly solve the problems, such as that existing tool plugging effect is poor, sealing effect is undesirable.It is characterized in that：Each inflatable Tubing Packer includes upper center tube, and the first spacing connecting hoop of upper center tube upper end screwed connection, the first spacing connecting hoop upper end screwed connection support ring, there are four through-holes for support ring；The external stability of upper center tube lower end is socketed with the fixing expansible packing element that lower end is the conical surface, fixing expansible packing element lower central pipe sleeve is equipped with inflatable packing element, inflatable packing element upper end is the conical surface, may expand the cone match of the conical surface and fixing expansible packing element of packing element side；Center bottom of the tube connects the second spacing connecting hoop；By connecting pipe assembly connection between upper and lower two inflatable Tubing Packers.Plugging effect should can be improved from swollen envelope washing well underground leak stoppage tool, sealing effect is good, while meeting the requirement of the well-flushing in production and oil well survey liquid level.
Description
Technical field
It is the utility model is related to oil field development technical field, more particularly to a kind of from swollen envelope washing well underground leak stoppage tool.
Background technology
Oil field oil, well casing corrosion failure, generated by external force rupture or it is disconnected de- etc. due to, oil, gas in well,
Water drains to ground or stratum, that is, casing leakage has occurred.Casing leakage is difficult to avoid that in oilfield development process, when exploitation
Between it is longer, problem is more serious.Casing leakage not only influences the normal production of oil, well, but also pollutes the environment.Existing skill
Art mainly takes set, casing patching, chemical plugging, packer leakage stopping technology and simple packer shut-in well.Take set technology
It is to utilize heavy repair task construction equipment, casing leakage well section and the above casing is taken out, new casing is replaced, is thoroughly to administer casing
One technology of leakage, but it is complex process, costly.Casing patching technology is also required to utilize heavy repair task construction equipment, to set
After pipe leakage well section inner surface is cleaned out, bellows or seal reinforcing device is taken to block casing leakage well section, technique is relatively multiple
Miscellaneous, costly, subsidizing the hole diameter of well section can reduce.Chemical plugging is outside blind hole section injection cement or other chemical agents, is come
Sealing casing leakage channel.The technology leaks outside to the casing of unconsolidated formation, superficial part not applicable.Packer leak stopping is in oil, well
Flow string on connect two stages of compression formula packer, packer is located at the upper and lower end of blind hole section, and being suppressed with pump truck makes envelope
It is set every device, card seals leakage well section, the disadvantage is that without well-flushing passage, cannot meet due in oil, well production process
Well-flushing requirement；Oil well cannot survey liquid level, and be influenced on packer by oil pump tubing string wriggling, and the leak stopping term of validity is short.Simply
Packer shut-in well be the tripping in packer below outer blind hole section, block borehole fluid return out ground, reach the same of leak stopping purpose
When, well also just stopped production.
Invention content
Technical problem to be solved in the utility model be overcome existing tool plugging effect present in background technology it is poor,
The undesirable problem of sealing effect, and provide it is a kind of from swollen envelope washing well underground leak stoppage tool, should be stifled from swollen envelope washing well underground
Leakage tool can improve plugging effect, and sealing effect is good, while meet the requirement of the well-flushing in production and oil well survey liquid level.
The invention for solving the technical problem can reach by following technical solution：It should be from swollen envelope washing well underground leak stopping work
Tool, including upper and lower two inflatable Tubing Packers, each inflatable Tubing Packer includes upper center tube, upper center tube upper end
The first spacing connecting hoop of screwed connection, the first spacing connecting hoop upper end screwed connection support ring, there are four through-holes for support ring；Upper center tube
Lower end external stability is socketed with the fixing expansible packing element that lower end is the conical surface, and fixing expansible packing element lower central pipe sleeve is equipped with can
Packing element is expanded, may expand packing element upper end is the conical surface, may expand the cone match of the conical surface and fixing expansible packing element of packing element side；
Center bottom of the tube connects the second spacing connecting hoop；By connecting pipe assembly connection between upper and lower two inflatable Tubing Packers.
The utility model can have the advantages that compared with above-mentioned background technology：It should be stifled from swollen envelope washing well underground
Leakage tool, the fixing expansible packing element to seal and the inflatable packing element of activity can automatic expandings under environment in the well for having water
Envelope, simplifies working procedure；There is larger channel between sealing device and oil pipe ontology, is effectively blocking casing leakage position
Meanwhile meeting the requirement of well-flushing and oil well survey liquid level；The inflatable packing element of activity can on central tube play, with fixing expansible
The cone match of packing element, when by thrust, its diameter can also increase under the action of the conical surface, and sealing effect is good；Fixation can
Expanding the inflatable packing element of packing element activity, by oil pipe ontology, there may be wrigglings to be influenced in the production process of well, will not be with well
Casing phase mutual friction, sealing life extend.
Description of the drawings
Attached drawing 1 is the structural schematic diagram of the utility model；
Attached drawing 2 is the utility model using state structure diagram；
Attached drawing 3 is the utility model connecting tube assembly structure schematic diagram.
In figure：1- tubing couplings；2- oil pipe ontologies；3- support rings；The first spacing connecting hoops of 4-；5- upper center tubes；6- is fixed
Inflatable packing element；7- activities may expand packing element；The second spacing connecting hoops of 8-；9- connection pipe assemblies；10- upper connectors；It is connected under 11-
Pipe；12- connection couplings.
Specific implementation mode：
The utility model is described in further detail below in conjunction with the accompanying drawings：
It, should be from swollen envelope washing well underground leak stoppage tool, including upper and lower two inflatable packing element packings as shown in attached drawing 1, Fig. 2
Device, each inflatable Tubing Packer includes upper center tube 5,5 the first spacing connecting hoop of upper end screwed connection 4 of upper center tube, and first
4 upper end screwed connection support ring 3 of spacing connecting hoop；5 lower end external stability of upper center tube is socketed with the fixation that lower end is the conical surface can be swollen
Swollen packing element 6,6 lower central pipe 5 of fixing expansible packing element are equipped with inflatable packing element 7, and may expand 7 upper end of packing element is the conical surface, can
Expand the cone match of the conical surface and fixing expansible packing element 6 of 7 side of packing element；5 bottom of central tube connects the second spacing connecting hoop 8,
It is connected between upper and lower two inflatable Tubing Packers by connecting pipe assembly 9, i.e. the second limit of upper expandable Tubing Packer
It is connected between position box cupling 8 and the second spacing connecting hoop of lower expandable Tubing Packer 8 by connecting pipe assembly 9；As shown in figure 3, institute
It includes upper connector 10 and lower connector 11 to state connection pipe assembly 9, passes through connection coupling between upper connector 10 and lower connector 11
12 connections；There are four support rings 3, and through-hole makes both ends have the sealing device and oil of inflatable packing element with 2 clearance fit of oil pipe ontology
Channel is formed between tube body 2, washing well is realized and oil well surveys the purpose of liquid level.
It should be from swollen envelope washing well underground leak stoppage tool in use, support ring 3, the first spacing connecting hoop 4, central tube 5, fixation can
Packing element 6, the inflatable packing element 7 of activity, the second spacing connecting hoop 8 is expanded to constitute and may expand Tubing Packer；Upper and lower two inflatable glue
After cylinder packer is inserted in from 2 both ends of oil pipe ontology respectively, two inflatable Tubing Packers are connected to one by connecting pipe assembly 9
It rises, 2 both ends external screw thread of oil pipe ontology is separately connected tubing coupling 1, and two inflatable Tubing Packer composition both ends have inflatable
The sealing device of packing element；Oil pipe ontology 2 with tubing coupling 1, which is mounted on both ends, to be had in the sealing device of inflatable packing element
Portion；There are four support rings 3, and through-hole makes both ends have the sealing device and oil pipe sheet of inflatable packing element with 2 clearance fit of oil pipe ontology
Channel is formed between body 2, washing well is realized and oil well surveys the purpose of liquid level；Fixing expansible packing element, the inflatable packing element of activity
For hydro-expansive rubber material, several times are may expand under environment, in the regular hour in the well for having water, are formed with casing-contact close
Envelope, eliminates pump truck and suppresses the process for making packer setting.Fixing expansible packing element 6 vulcanizes in one end of central tube 5, central tube
The activity of 5 other end installation may expand packing element 7 can on central tube 5 play, and match with the conical surface of fixing expansible packing element 6
It closes, when by thrust, its diameter can also increase under the action of the conical surface, ensure that sealing effect；Fixing expansible packing element
6, by oil pipe ontology 2, there may be wrigglings to be influenced in the production process of well for movable inflatable packing element 7, ensure that the sealing longevity
Life.
In oil field to blocking in casing leakage well section implementation plugging operations, required according to detail design, by the utility model
It is connected to G.I.H on flow string, the depth point of the fixing expansible packing element G.I.H of two inflatable Tubing Packers
Not Wei casing leak outside well section stuck point depth up and down.The effect of fixing expansible packing element and the inflatable packing element water in well of activity
Under, diameter increases, and is formed and is sealed with casing-contact；The inflatable packing element of activity can on central tube play, with fixing expansible glue
The cone match of cylinder, when the thrust that the pressure difference by leakage well section generates, its diameter can also increase under the action of the conical surface,
The pressure difference for the well section that leaks outside is bigger closer with casing-contact, and sealing effect is better；Under normal circumstances, can after going into the well 2 hours,
Plugging effect is seen, after 24 hours, obtains best sealing effect（The speed of expansion and expansion multiple for expanding packing element can be according to need
It designs）.When well-flushing or survey liquid level, well-flushing water or sound wave are flowed or are passed by the channel between sealing device and oil pipe ontology
It broadcasts, channel minimum area 1680mm2, disclosure satisfy that well-flushing discharge capacity and acoustic signals pass wave requirement.Tubing string is needed replacing in well to make
When industry, the utility model rises with tubing string, replaces by support ring, the first spacing connecting hoop, central tube, fixing expansible packing element, work
The inflatable Tubing Packer that dynamic inflatable packing element, the second spacing connecting hoop are constituted, and with new design of string pipe G.I.H, you can
Continue up to the purpose of leak stopping.
Claims (3)
1. a kind of from swollen envelope washing well underground leak stoppage tool, including upper and lower two inflatable Tubing Packers, it is characterised in that：Often
A inflatable Tubing Packer includes upper center tube（5）, upper center tube（5）The first spacing connecting hoop of upper end screwed connection（4）, first
Spacing connecting hoop（4）Upper end screwed connection support ring（3）, support ring（3）There are four through-holes；Upper center tube（5）Lower end external stability
It is socketed with the fixing expansible packing element that lower end is the conical surface（6）, fixing expansible packing element（6）Lower central pipe（5）Being equipped with can be swollen
Swollen packing element（7）, may expand packing element（7）Upper end is the conical surface, may expand packing element（7）The conical surface of side and fixing expansible packing element（6）
Cone match；Central tube（5）Bottom connects the second spacing connecting hoop（8）；Pass through company between upper and lower two inflatable Tubing Packers
Take over assembly（9）Connection.
2. according to claim 1 from swollen envelope washing well underground leak stoppage tool, it is characterised in that：The upper expandable glue
Second spacing connecting hoop of cylinder packer（8）With the second spacing connecting hoop of lower expandable Tubing Packer（8）Between it is total by connecting tube
At（9）Connection.
3. according to claim 1 from swollen envelope washing well underground leak stoppage tool, it is characterised in that：The connection pipe assembly
（9）Including upper connector (10) and lower connector (11), upper connector（10）And lower connector（11）Between pass through connection coupling
（12）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820159344.0U CN207795140U (en) | 2018-01-30 | 2018-01-30 | It is a kind of from swollen envelope washing well underground leak stoppage tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820159344.0U CN207795140U (en) | 2018-01-30 | 2018-01-30 | It is a kind of from swollen envelope washing well underground leak stoppage tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207795140U true CN207795140U (en) | 2018-08-31 |
Family
ID=63268508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820159344.0U Active CN207795140U (en) | 2018-01-30 | 2018-01-30 | It is a kind of from swollen envelope washing well underground leak stoppage tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207795140U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983337A (en) * | 2019-12-02 | 2021-06-18 | 中国石油天然气股份有限公司 | Packer for plugging and plugging method |
| CN115126438A (en) * | 2021-03-25 | 2022-09-30 | 中国石油天然气集团有限公司 | Electrodeless variable-diameter leakage blocking device and method thereof |
-
2018
- 2018-01-30 CN CN201820159344.0U patent/CN207795140U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983337A (en) * | 2019-12-02 | 2021-06-18 | 中国石油天然气股份有限公司 | Packer for plugging and plugging method |
| CN115126438A (en) * | 2021-03-25 | 2022-09-30 | 中国石油天然气集团有限公司 | Electrodeless variable-diameter leakage blocking device and method thereof |
| CN115126438B (en) * | 2021-03-25 | 2023-10-20 | 中国石油天然气集团有限公司 | Stepless reducing plugging device and method thereof |
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