CN204267013U - Row's integration apparatus is returned in acidifying, negative pressure - Google Patents
Row's integration apparatus is returned in acidifying, negative pressure Download PDFInfo
- Publication number
- CN204267013U CN204267013U CN201420703505.XU CN201420703505U CN204267013U CN 204267013 U CN204267013 U CN 204267013U CN 201420703505 U CN201420703505 U CN 201420703505U CN 204267013 U CN204267013 U CN 204267013U
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- China
- Prior art keywords
- negative pressure
- oil pipe
- deblocking device
- acidifying
- row
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Abstract
The utility model provides a kind of acidifying, negative pressure returns row's integration apparatus, comprise the oil pipe stretching into inside pipe casing, described oil pipe is disposed with converter, high-pressure packer, negative pressure deblocking device from top to bottom, the central tube of described converter is connected with little oil pipe and is connected on the anemostat of negative pressure deblocking device inside by the sealing intubate of broken down device.Downhole flow pressure gauge is set bottom oil pipe below described negative pressure deblocking device.Described converter is offered conversion hole, the oil pipe above described high-pressure packer and the annular space between sleeve pipe are communicated to negative pressure deblocking device by this conversion hole and central tube.Described negative pressure deblocking device inside arranges the intake be communicated with anemostat, and inside is offered and to be communicated with intake and to have the nozzle of certain distance with anemostat entrance.Achieve the function that acidifying and acid discharge de-plugging unite two into one, have that suction energy is strong, the row's of returning feature timely, effectively improve oil-water well acidification to dispel block effect.
Description
Technical field
The acidifying that the utility model relates to oil-water well mediates plugging technique with returning, and row's integration apparatus is returned in specifically acidifying, negative pressure.
Background technology
Current conventional acidulation is returned row's technique and is comprised mixed gas (foam), suction, well-flushing etc., normally first enters down acidifying tubing string, trips out acidifying tubing string after acidification reaction completes, and enters secondary comb post and carry out residual acid and return row under continuation.Due to the row of returning not in time, the reason such as cost is high, suction capactity is not enough, the difficult control of ground displacement pressure, the residual acid of near wellbore zone and other pollutant cannot be taken to ground, cause secondary pollution, cause oil-water well production capacity to decline.
Summary of the invention
The purpose of this utility model is to provide a kind of acidifying, negative pressure returns row's integration apparatus, positive acid filling liquid completes acidifying, high voltage power liquid reacting cycle relies on the residual acid of the jet flow negative pressure effect strong pumping of negative pressure deblocking device to wait pollutant, realize the function that acidifying and acid discharge de-plugging unite two into one, one-trip string completes acidifying and near wellbore zone pollutant and returns and be discharged to ground, suction energy is strong, the row of returning is timely, effectively improves oil-water well acidification to dispel block effect.
The purpose of this utility model realizes by following technical measures:
This acidifying, negative pressure are returned row's integration apparatus and are comprised the oil pipe stretching into inside pipe casing, described oil pipe is disposed with converter, high-pressure packer, negative pressure deblocking device from top to bottom, the little oil pipe of the inner empty set of oil pipe described in described converter is connected to negative pressure deblocking device.
The purpose of this utility model also realizes by following technical measures:
Described converter inside is arranged central tube and is connected by the little oil pipe of the inner empty set of central tube and described oil pipe, and little oil pipe is connected on the anemostat of negative pressure deblocking device inside by the sealing intubate of negative pressure deblocking device again.
Described converter is offered conversion hole, the oil pipe above described high-pressure packer and the annular space between sleeve pipe are communicated to negative pressure deblocking device by this conversion hole and central tube; Downhole flow pressure gauge is set bottom oil pipe below described negative pressure deblocking device.
Described negative pressure deblocking device inside arranges the intake be communicated with anemostat, and the nozzle be communicated with intake is offered in inside.
Described oil pipe upper port arranges tubing valve, and the upper port of described sleeve pipe arranges sleeve valve.
The utility model has following beneficial effect:
Acid solution formation can be injected by forward after the utility model running string and carry out chemical plugging removal process, inverse injection high voltage power liquid after completing Deng chemical reaction, around the nearly well of acidifying target zone, low-pressure area is formed fast by negative pressure deblocking device, form the flowing negative pressure being greater than producing pressure differential, aspirate the acidifying residual solution near wellbore zone and stratum, derivative sediment, free sand, the machine material reducing oil reservoir percolation ability such as to mix is inner to negative pressure deblocking device, by being carried to ground with high voltage power mixing Posterior circle, cannot be timely after solving current acidifying, the efficient discharge alternately residual acid of layer and other pollutants causes the problem of secondary pollution to ground, improve acidifying period of validity, reduce engineering time and cost, effective prolongation oil-water well operation cycle.
1, acidifying in operation process, return mediate stifled one-trip string construction, decrease the amount of labour, save operating cost;
2, locally two-tube and passageway bridge structure is adopted to guide the negative pressure mechanism of fluid chemical field;
3, negative pressure deblocking device adopts nozzle and anemostat breed system array structure, and acidifying, the negative pressure that can meet different pressure reduction demand return row's demand;
4, can the flow of acidifying and the row of returning and pressure under monitor well.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Structural representation when Fig. 2 is the utility model acidifying;
Fig. 3 is the structural representation that the utility model negative pressure returns row.
Detailed description of the invention
Relevant detailed description of the present utility model and technology contents, coordinate accompanying drawing to be described as follows, but accompanying drawing only provides with reference to the use with explanation, is not used for being limited the utility model.
Row's integration apparatus is returned in this acidifying, negative pressure, comprise the oil pipe 4 stretching into sleeve pipe 3 inside, described oil pipe is disposed with converter 5, high-pressure packer 6, negative pressure deblocking device 7 from top to bottom, described converter is connected on the anemostat of negative pressure deblocking device inside with little oil pipe, negative pressure deblocking device intubate by the central tube 10 being arranged on oil pipe inside.Downhole flow pressure gauge 8 is set bottom oil pipe below described negative pressure deblocking device.Described converter is offered conversion hole, the oil pipe above described high-pressure packer and the annular space between sleeve pipe are communicated to negative pressure deblocking device by this conversion hole and central tube.Described negative pressure deblocking device inside arranges the intake be communicated with anemostat, and inside is offered and to be communicated with intake and to have the nozzle of certain distance with anemostat entrance.Described oil pipe upper port arranges tubing valve 1, and the upper port of described sleeve pipe arranges sleeve valve 2.
During use:
As shown in Figure 2, after tubing string is gone into the well, first set high-pressure packer 6, form separation acidifying being returned to row's target zone and top oil jacket annular space.Open tubing valve 1, close sleeve valve 2, pump truck is utilized to clamp-on in oil pipe 4 by acid solution 9 through tubing valve 1, acid solution enters the central tube 10 of converter 5 by oil pipe 4, enter the anemostat 11 of negative pressure deblocking device, enter sleeve pipe 3 by the intake 12 of negative pressure deblocking device again, annular space that high-pressure packer 6, negative pressure deblocking device 7 form, by acidifying chemical reaction, remove the blocking of formation contaminant thing.
As shown in Figure 3, open tubing valve 1 and sleeve valve 2, sleeve valve 2 connects injection pump truck, and tubing valve 1 connects devil liquor recovery tank.Pump truck by high voltage power liquid 13 through the sleeve valve 2 reacting cycle sprue bushing 3 oil jacket annular space with oil pipe 4, water under high pressure enters the central tube 10 of converter 5 through the conversion hole 14 of converter 5, the inner central tube of negative pressure deblocking device 7 and the overcoat of converter 5, the interior pipe of high-pressure packer 6, the annular space of the outer tube composition of negative pressure deblocking device 7, nozzle 15 through negative pressure deblocking device 7 flows out, around nearly well, low-pressure area is formed in moment, suction oil layer pollution thing 16 enters its mixing tube 11 through the intake 12 of negative pressure deblocking device 7, power fluid 13 and formation contaminant liquid 16 are formed after mixed liquor 17 through negative pressure deblocking device 7 inner central tube through power conversion, converter 5 inner central tube enters oil pipe 4, finally return and drain into ground, recycling can is entered through tubing valve 1 outflow by mixed liquor 17.
The 8 pairs of acidifyings of memory-type flow pressure meter, return and be drained through Cheng Jinhang and measure, be convenient to evaluate acidizing effect and down-hole swabbing pressure and formation fluid production.
The foregoing is only preferred embodiment of the present utility model, be not used to limit the scope of the claims 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 the scope of the claims of the present utility model.
Claims (5)
1. row's integration apparatus is returned in acidifying, negative pressure, comprise the oil pipe stretching into inside pipe casing, it is characterized in that, described oil pipe is disposed with converter, high-pressure packer, negative pressure deblocking device from top to bottom, the little oil pipe of the inner empty set of oil pipe described in described converter is connected to negative pressure deblocking device.
2. row's integration apparatus is returned in acidifying according to claim 1, negative pressure, it is characterized in that, described converter inside is arranged central tube and is connected by the little oil pipe of the inner empty set of central tube and described oil pipe, and little oil pipe is connected on the anemostat of negative pressure deblocking device inside by the sealing intubate of negative pressure deblocking device again.
3. row's integration apparatus is returned in acidifying according to claim 1, negative pressure, it is characterized in that, described converter is offered conversion hole, the oil pipe above described high-pressure packer and the annular space between sleeve pipe are communicated to negative pressure deblocking device by this conversion hole and central tube; Downhole flow pressure gauge is set bottom oil pipe below described negative pressure deblocking device.
4. row's integration apparatus is returned in acidifying according to claim 3, negative pressure, it is characterized in that, described negative pressure deblocking device inside arranges the intake be communicated with anemostat, and the nozzle be communicated with intake is offered in inside.
5. row's integration apparatus is returned in acidifying according to claim 1, negative pressure, it is characterized in that, described oil pipe upper port arranges tubing valve, and the upper port of described sleeve pipe arranges sleeve valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420703505.XU CN204267013U (en) | 2014-11-20 | 2014-11-20 | Row's integration apparatus is returned in acidifying, negative pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420703505.XU CN204267013U (en) | 2014-11-20 | 2014-11-20 | Row's integration apparatus is returned in acidifying, negative pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267013U true CN204267013U (en) | 2015-04-15 |
Family
ID=52801885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420703505.XU Expired - Fee Related CN204267013U (en) | 2014-11-20 | 2014-11-20 | Row's integration apparatus is returned in acidifying, negative pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267013U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672976A (en) * | 2014-11-20 | 2016-06-15 | 中国石油化工股份有限公司 | Acidizing, negative-pressure and flowback integrated equipment and technology |
-
2014
- 2014-11-20 CN CN201420703505.XU patent/CN204267013U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672976A (en) * | 2014-11-20 | 2016-06-15 | 中国石油化工股份有限公司 | Acidizing, negative-pressure and flowback integrated equipment and technology |
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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: 20150415 Termination date: 20151120 |
|
| EXPY | Termination of patent right or utility model |