CN203321480U - Cased hole completion multi-stage fracturing horizontal well selective mining pipe column - Google Patents
Cased hole completion multi-stage fracturing horizontal well selective mining pipe column Download PDFInfo
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- CN203321480U CN203321480U CN2013203201215U CN201320320121U CN203321480U CN 203321480 U CN203321480 U CN 203321480U CN 2013203201215 U CN2013203201215 U CN 2013203201215U CN 201320320121 U CN201320320121 U CN 201320320121U CN 203321480 U CN203321480 U CN 203321480U
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Abstract
The utility model discloses a cased hole completion multi-stage fracturing horizontal well selective mining pipe column which is designed for selective and staged mining for horizontal wells. A waterproof oil pipe of the pipe column is connected with a multiple packer of a separation casing; a deep-well pump, a seal inserting pipe, constant pressure valves and seal drums relative to separation sections of the casing and a bottom guide plug are connected in the waterproof oil pipe; the upper end of a bottom sealing holed pipe is connected with the seal inserting pipe, and the pipe body is connected with the constant pressure valves and the seal drums in the separation sections. During work, the packer is used for separating horizontal well sections, the seal inserting pipe and the bottom sealing holed pipe are placed, a secondary seal section is formed in the separation pipe column combined with the seal drums, and the seal inserting pipe is dragged to perform selective mining and staged water detection for production of the horizontal section. According to the cased hole completion multi-stage fracturing horizontal well selective mining pipe column, multistage usage can be achieved, the number of stages is not limited, selective mining under micro change and damage to the casing or staged mining and water detection for production from top to bottom can be achieved, flooding of the whole well can be avoided, and good development effects can be ensured.
Description
Technical field
The utility model relates to the selective mining tubular column of a kind of cased hole completion multistage pressure break horizontal well, belongs to the oil extraction in oil field technical field.
Background technology
Utilize the horizontal wells low permeability oil field can improve largely development effectiveness, improve recovery ratio.Along with the progress of horizontal well drilling technology and transformation means, the horizontal segment of horizontal well is more and more longer, and the transformation hop count is more and more.Be subject to the impact of waterflooding extraction and fracture development, each interval of horizontal well exists the problem that unbalance stress and contribution differ.Full well is brought disaster in the water logging meeting of part of horizontal section, increase in well fast moisture, shorten water-free oil production period, add quick depletion output, if indefinite water breakthrough direction and layer position, do not know each stressor layer and production capacity situation, without dynamic on-the-spot adjustment measure targetedly, can make down-hole casing be damaged and be out of shape, have a strong impact on the development effectiveness of horizontal well.
At present, the selective exploitation of hyposmosis low discharge horizontal well and segmentation production test water detection substantially adopt the derailing switch timing controlled and produce one by one each interval, moisture each section of ground assay, the judgement water exit interval.Yet the downhole on-off actuator switch is normally no can only be known after test finishes, if malfunctioning switch will cause test crash.In addition, micro-change of horizontal well casing pipe and fouling meeting make can't be lowered to from sealed packer, and meeting oily expansion can't drag and trip out.
Summary of the invention
The purpose of this utility model is to provide a kind of cased hole completion multistage pressure break horizontal well selective mining tubular column, and it can solve the problems of the technologies described above, and realizes that optionally product and water detection are asked in exploitation, segmentation to horizontal well piecemeal.
The technology contents of the selective mining tubular column of this cased hole completion multistage pressure break horizontal well is as follows:
This tubing string water proof oil pipe outside connects the multiple-string packer of separating sleeve pipe from top to bottom successively; Connect successively from top to bottom the sealing intubate of deep well pump, connection back-off packer, constant pressure valve and the sealing drum of relative each compartment of sleeve pipe in the water proof oil pipe, water proof oil pipe bottom connects the guiding plug; Back cover pipe with holes upper end connects the sealing intubate, and pipe shaft connects constant pressure valve and the sealing drum in each compartment.
The utility model can multistagely be used, and progression is unrestricted, can realize the selective exploitation under the micro-change of sleeve pipe and damage condition, or product water detection is asked in exploitation and segmentation piecemeal from top to bottom, can avoid full well water to flood, and guarantees good development effectiveness.
The accompanying drawing explanation
Fig. 1 is that the selective mining tubular column of cased hole completion multistage pressure break horizontal well carries out the schematic diagram recovered the oil in the horizontal well middle part.
The specific embodiment
Embodiment:
With reference to Fig. 1, embodiment of the present utility model is further illustrated:
This tubing string water proof oil pipe 10 outsides connect Y445 back-off packer 12, Y441 intubate upper packer 7 and the Y441 intubate lower packet 3 of separating sleeve pipe 14 from top to bottom successively; Connect successively from top to bottom deep well pump 13 in water proof oil pipe 10, connect the upper constant pressure valve 9 of compartment on the sealing intubate 11 of Y445 back-off packer 12, relative sleeve pipe 14 and middle constant pressure valve 5 and the lower constant pressure valve 2 of lower seal cylinder 4,14 times compartments of relative sleeve pipe and the plug 1 that leads of compartment in upper seal bore 8, relative sleeve pipe 14; Back cover pipe with holes 6 upper ends connect sealing intubate 11, and pipe shaft connects constant pressure valve and the sealing drum in each compartment.
During the work of this tubing string, first utilize the multiple-string packer of separating tubing string to separate net horizontal section; Be lowered to sealing intubate and back cover pipe with holes, within separating tubing string, the combination seal cylinder forms the secondary seal section again; Drag the sealing intubate, carry out the selective exploitation of horizontal segment and segmentation and ask product water detection.
Claims (2)
1. the selective mining tubular column of cased hole completion multistage pressure break horizontal well is characterized in that:
This tubing string water proof oil pipe (10) outside connects the multiple-string packer of separating sleeve pipe (14) from top to bottom successively; Connect successively from top to bottom the sealing intubate (11) of deep well pump (13), connection back-off packer, constant pressure valve and the sealing drum of relative each compartment of sleeve pipe (14) in water proof oil pipe (10), water proof oil pipe (10) bottom connects guiding plug (1); Back cover pipe with holes (6) upper end connects sealing intubate (11), and pipe shaft connects constant pressure valve and the sealing drum in each compartment.
2. the selective mining tubular column of cased hole completion multistage pressure break horizontal well according to claim 1, is characterized in that water proof oil pipe (10) outside connects Y445 back-off packer (12), Y441 intubate upper packer (7) and Y441 intubate lower packet (3) from top to bottom successively; Connect successively from top to bottom deep well pump (13) in water proof oil pipe (10), connect the sealing intubate (11) of Y445 back-off packer (12), lower constant pressure valve (2) and the plug (1) that leads of compartment under the middle constant pressure valve (5) of compartment and lower seal cylinder (4), relative sleeve pipe (14) in the upper constant pressure valve (9) of the upper compartment of sleeve pipe (14) and upper seal bore (8), relative sleeve pipe (14) relatively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203201215U CN203321480U (en) | 2013-06-05 | 2013-06-05 | Cased hole completion multi-stage fracturing horizontal well selective mining pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203201215U CN203321480U (en) | 2013-06-05 | 2013-06-05 | Cased hole completion multi-stage fracturing horizontal well selective mining pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203321480U true CN203321480U (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203201215U Expired - Fee Related CN203321480U (en) | 2013-06-05 | 2013-06-05 | Cased hole completion multi-stage fracturing horizontal well selective mining pipe column |
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| CN (1) | CN203321480U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213846A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气股份有限公司 | Cased hole completion multi-section-fractured horizontal well selective production pipe column and working method thereof |
| CN104500057A (en) * | 2014-12-03 | 2015-04-08 | 中国石油化工股份有限公司 | Testing method of liquid producing profile of horizontal well |
| CN105715240A (en) * | 2016-03-31 | 2016-06-29 | 中国石油大学(北京) | Oil extraction method for injecting water among well fissures of multistage fractured horizontal well at intervals |
| CN105822276A (en) * | 2016-04-22 | 2016-08-03 | 中国石油大学(北京) | Inter-crack space synchronous water injection-oil extraction method of multistage fracturing horizontal well |
| CN110017133A (en) * | 2019-05-23 | 2019-07-16 | 广州海洋地质调查局 | A kind of test of horizontal well production profile and shutoff method and device |
| CN110206521A (en) * | 2019-05-31 | 2019-09-06 | 山东科技大学 | A kind of water filling segmentation of coal seam long drilled holes, which is opened, splits device and method |
-
2013
- 2013-06-05 CN CN2013203201215U patent/CN203321480U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213846A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气股份有限公司 | Cased hole completion multi-section-fractured horizontal well selective production pipe column and working method thereof |
| CN104213846B (en) * | 2013-06-05 | 2016-07-13 | 中国石油天然气股份有限公司 | Cased hole completion multistage frac water horizontal well selectivity mining tubular column and method of work thereof |
| CN104500057A (en) * | 2014-12-03 | 2015-04-08 | 中国石油化工股份有限公司 | Testing method of liquid producing profile of horizontal well |
| CN105715240A (en) * | 2016-03-31 | 2016-06-29 | 中国石油大学(北京) | Oil extraction method for injecting water among well fissures of multistage fractured horizontal well at intervals |
| CN105715240B (en) * | 2016-03-31 | 2018-07-17 | 中国石油大学(北京) | It is spaced water injection oil extraction method between multistage fracturing horizontal well seam |
| CN105822276A (en) * | 2016-04-22 | 2016-08-03 | 中国石油大学(北京) | Inter-crack space synchronous water injection-oil extraction method of multistage fracturing horizontal well |
| CN105822276B (en) * | 2016-04-22 | 2018-07-17 | 中国石油大学(北京) | Interval while water injection oil extraction method between multistage fracturing horizontal well seam |
| CN110017133A (en) * | 2019-05-23 | 2019-07-16 | 广州海洋地质调查局 | A kind of test of horizontal well production profile and shutoff method and device |
| CN110017133B (en) * | 2019-05-23 | 2024-05-10 | 广州海洋地质调查局 | Method and device for testing output profile of horizontal well and plugging water |
| CN110206521A (en) * | 2019-05-31 | 2019-09-06 | 山东科技大学 | A kind of water filling segmentation of coal seam long drilled holes, which is opened, splits device and method |
| CN110206521B (en) * | 2019-05-31 | 2021-11-23 | 山东科技大学 | Coal seam long-drill-hole water injection sectional crack initiation device and method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20210605 |