CN106285588A - Preset cable direct control type electric control layered polymer injection process pipe column and polymer injection method - Google Patents
Preset cable direct control type electric control layered polymer injection process pipe column and polymer injection method Download PDFInfo
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- CN106285588A CN106285588A CN201510319633.3A CN201510319633A CN106285588A CN 106285588 A CN106285588 A CN 106285588A CN 201510319633 A CN201510319633 A CN 201510319633A CN 106285588 A CN106285588 A CN 106285588A
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- 238000002347 injection Methods 0.000 title claims abstract description 51
- 239000007924 injection Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 32
- 229920000642 polymer Polymers 0.000 title claims abstract description 23
- 230000008569 process Effects 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 13
- 238000011010 flushing procedure Methods 0.000 claims description 14
- 230000008676 import Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000006116 polymerization reaction Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 10
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 230000002452 interceptive effect Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006880 cross-coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
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Abstract
The invention relates to the technical field of layered polymer injection wells, in particular to a preset cable direct-control type electric control layered polymer injection process pipe column and a polymer injection method. The tubular column comprises a sleeve, wherein an oil pipe is arranged inside the sleeve, an annular space between the sleeve and the oil pipe is divided into different layers by a plurality of cable-passing washable well packers, a single-core steel pipe cable penetrates through the cable-passing washable well packers, a flow direct-reading underground electric control polymer injection device is arranged between every two adjacent packers, the injection amount of the flow direct-reading underground electric control polymer injection device is controlled by a ground controller, and two pressure sensors and an electromagnetic flowmeter are arranged inside the flow direct-reading underground electric control polymer injection device. According to the polymer injection process pipe column and the polymer injection method, the ground control device can supply power and control communication to the underground flow direct-reading underground electric control polymer injection device through the steel pipe single-core cable, can establish interactive monitoring between the ground and the underground, and realizes real-time monitoring of pressure in front of a nozzle and pressure in the back of the flow ground direct-reading and direct-controlling without taking off an instrument in the testing process.
Description
Technical field
The present invention relates to layered polymer injection well technical field, particularly to a kind of preset cable direct controlled type automatically controlled layered polymer injection process pipe string and note poly-method.
Background technology
Oil field layered injection well mainly uses two-tube zonal injection technology, concentric separated-injection technique, eccentric fusiformis bar, eccentric annular relief groove and separate mass and separate pressure injection technology, though two-tube zonal injection technology can realize ground commissioning but can only realize 2 layers of injection, and anti-flushing well, the problem that concentric separated-injection technique, eccentric fusiformis bar, eccentric annular relief groove and separate mass and separate pressure injection technology all exist dropping-fishing test difficulty cannot be realized.
Summary of the invention
(1) technical problem to be solved
The technical problem to be solved is to provide a kind of preset cable direct controlled type automatically controlled layered polymer injection process pipe string and notes poly-method, to overcome oilfield injection well in prior art to use existing eccentric separated-injection technique to there is the defects such as the easy blocked portion of dropping-fishing test, test achievement is easy the most repeatedly, unstable, allotment control efficiency is low.
(2) technology contents
In order to solve above-mentioned technical problem, one aspect of the present invention provides a kind of preset cable direct controlled type automatically controlled layered polymer injection process pipe string, including: sleeve pipe, inside pipe casing has oil pipe, annular space between described sleeve pipe and oil pipe is crossed cable well packer capable of flushing well by several and is separated into different layer positions, steel pipe single-core cable crosses cable well packer capable of flushing well through above-mentioned, it is provided with a flow quantity direct-reading downhole electric control between adjacent two-stage packer and notes poly-device, described flow quantity direct-reading downhole electric control is noted the injection rate of poly-device and is regulated by ground controller control, flow quantity direct-reading downhole electric control is noted has two pressure transducers and an electromagnetic flowmeter inside poly-device, said two pressure transducer is monitored in oil pipe and pipe external pressure respectively, described electromagnetic flowmeter Stoichiometric Polymerization thing liquid inventory.
On the other hand, the present invention also provides for a kind of poly-method of note, including: ground control box is noted poly-device by the flow quantity direct-reading downhole electric control of steel pipe single-core cable with down-hole and is set up communication and power supply；On ground, ground control box is connected with the cable crossing cable special injection well head, start ground control box, read pressure and the flow value of the downhole flow direct-reading type down-hole poly-device of automatically controlled note, contrast with injection allocation, according to comparing result adjust accordingly flow quantity direct-reading downhole electric control note poly-device import and export between valve core length until meeting injection allocation requirement.
(3) beneficial effect
The present invention provides a kind of preset cable direct controlled type automatically controlled layered polymer injection process pipe string and notes poly-method, ground control unit can be noted poly-device by steel pipe single-core cable to the flow quantity direct-reading downhole electric control of down-hole and power and Communication Control, the interactive mode monitoring on ground and down-hole can be set up, it is achieved test process is monitored without the real-time of pressure after mouth before removing instrument, flow ground directly-reading, straight control and mouth.
Accompanying drawing explanation
Fig. 1 is the present invention preset cable direct controlled type automatically controlled layered polymer injection process pipe string structural representation.
Wherein:
1: ground controller；2: cross cable special injection well head；3: oil pipe；4: steel pipe single-core cable；5: cross cable well packer capable of flushing well；6: flow quantity direct-reading downhole electric control notes poly-device；7: sleeve pipe；8: screen casing；9: plug.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the detailed description of the invention of the present invention is described in further detail.Following example are used for illustrating the present invention, but are not intended to limit the scope of the present invention.
As shown in Figure 1, the preset cable direct controlled type automatically controlled layered polymer injection process pipe string that the present invention provides, including sleeve pipe 7, sleeve pipe 7 is internal oil pipe 3, annular space between described sleeve pipe 7 and oil pipe 3 is crossed cable well packer capable of flushing well 5 by several and is separated into different layer positions, steel pipe single-core cable 4 crosses cable well packer capable of flushing well 5 through above-mentioned, each layer of position is all correspondingly arranged on flow quantity direct-reading downhole electric control and notes poly-device 6, flow quantity direct-reading downhole electric control is noted the injection rate of poly-device 6 and is regulated by ground control, flow quantity direct-reading downhole electric control is noted in poly-device 6 inside has 2 pressure transducers to monitor oil pipe respectively and pipe external pressure and 1 electromagnetic flowmeter, Stoichiometric Polymerization thing liquid inventory.
The present invention also provides for a kind of preset cable direct controlled type automatically controlled layered polymer injection process, comprising: ground control box notes poly-device by the flow quantity direct-reading downhole electric control of steel pipe single-core cable with down-hole sets up communication and power supply；On ground, ground control box is connected with the cable crossing cable special injection well head, start ground control box, read pressure and the flow value of the downhole flow direct-reading type down-hole poly-device of automatically controlled note, contrast with injection allocation, according to comparing result adjust accordingly flow quantity direct-reading downhole electric control note poly-device import and export between valve core length until meeting injection allocation requirement.
nullSpecifically: when lower tubular column，As shown in Figure 1，It is sequentially connected with oil pipe and instrument from bottom to top，First screen casing 8 and plug 9 are connected on nethermost 1 oil pipe when ground，It is sequentially connected with oil pipe by Construction Scheme，After having connected bottom 1 grade of flow quantity direct-reading downhole electric control poly-device 6 of note，The cable that flow quantity direct-reading downhole electric control is noted poly-device 6 is connected with steel pipe single-core cable 4 by cable connector，Communication is checked with circuit tester after connection，After communication normally, G.I.H continues connected pipes，Cross coupling protector with cable at the box cupling of bottom 1 grade of flow quantity direct-reading downhole electric control poly-all above oil pipe of device 6 of note and oil pipe short circuit be fixed by cable and protect，When being connected to 1 grade, bottom cable well packer capable of flushing well 5 excessively，Steel pipe single-core cable 4 is blocked，The steel pipe single-core cable 4 blocked is connected respectively with lower contact on cable well packer capable of flushing well 5 cable excessively respectively，Repeat above procedure，Until completing by Construction Scheme，Down tube installed cable special injection well head after completing，And suppress and discharged cable well packer capable of flushing well.
Being connected with the steel pipe single-core cable crossing cable special injection well head 2 by ground control box 1, be energized after connection, observe the change of ground control box current value, after current value is stable, clicks on and start communication button, communication state lamp is green, for normal condition；As unchanged in communication display lamp, it was demonstrated that communication condition is abnormal, now click on closed communication button, cut off the electricity supply simultaneously.nullAfter preparation completes，Carry out the debugging of each laminar flow amount，The sealing situation crossing cable well packer capable of flushing well 5 is verified before debugging for the first time，Checking example: test the envelope second level when crossing cable well packer capable of flushing well 5，The spool that second level flow quantity direct-reading downhole electric control notes poly-device 6 is adjusted to bottom，See that the first order and second level flow quantity direct-reading downhole electric control note the force value situation of change that poly-device 6 pipe external pressure sensor collects，Second level flow quantity direct-reading downhole electric control is noted after poly-device 6 pipe external pressure force value is adjusted to bottom with fusiformis bar and is reduced，The force value that the first order flow quantity direct-reading downhole electric control poly-device 6 pipe external pressure sensor of note collects is constant，Illustrate that the second level is crossed cable well packer capable of flushing well 5 and sealed，It is identical with this that other layer tests envelope situation，After having judged the sealing situation of packer at different levels and will test sealed knot fruit on ground control box 1 operation and control interface show.Test that being sealed is honored as a queen carries out flow debugging, debugging process is as a example by layer one, it is first begin to reading button, read the numerical value that pipe external pressure sensor, overpressure sensor and electromagnetic flowmeter collect, contrast flow value and injection allocation that electromagnetic flowmeter collects, and according to contrast situation regulation spool position, until the flow value that electromagnetic flowmeter collects meets injection allocation requirement, this layer of commissioning carries out commissioning to remainder layer after completing.
Other function: each layer spool position is adjusted to bottom 48 and as a child read the force value that pipe external pressure sensor collects, is the strata pressure of corresponding interval.
The present invention provide preset cable direct controlled type automatically controlled layered polymer injection process pipe string and note poly-method, ground control unit can be noted poly-device by steel pipe single-core cable to the flow quantity direct-reading downhole electric control of down-hole and power and Communication Control, the interactive mode monitoring on ground and down-hole can be set up, it is achieved test process is monitored without the real-time of pressure after mouth before removing instrument, flow ground directly-reading, straight control and mouth.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, on the premise of without departing from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be regarded as protection scope of the present invention.
Claims (2)
1. a preset cable direct controlled type automatically controlled layered polymer injection process pipe string, it is characterized in that, including: sleeve pipe, inside pipe casing has oil pipe, annular space between described sleeve pipe and oil pipe is crossed cable well packer capable of flushing well by several and is separated into different layer positions, steel pipe single-core cable crosses cable well packer capable of flushing well through above-mentioned, it is provided with flow quantity direct-reading downhole electric control between adjacent two-stage packer and notes poly-device, described flow quantity direct-reading downhole electric control is noted the injection rate of poly-device and is regulated by ground controller control, flow quantity direct-reading downhole electric control is noted has two pressure transducers and an electromagnetic flowmeter inside poly-device, said two pressure transducer is monitored in oil pipe and pipe external pressure respectively, described electromagnetic flowmeter Stoichiometric Polymerization thing liquid inventory.
2. one kind carries out noting poly-process based on claim 1 preset cable direct controlled type automatically controlled layered polymer injection process pipe string, it is characterized in that, including: ground control box is noted poly-device by the flow quantity direct-reading downhole electric control of steel pipe single-core cable with down-hole and is set up communication and power supply；On ground, ground control box is connected with the cable crossing cable special injection well head, start ground control box, read pressure and the flow value of the downhole flow direct-reading type down-hole poly-device of automatically controlled note, contrast with injection allocation, according to comparing result adjust accordingly flow quantity direct-reading downhole electric control note poly-device import and export between valve core length until meeting injection allocation requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510319633.3A CN106285588A (en) | 2015-06-11 | 2015-06-11 | Preset cable direct control type electric control layered polymer injection process pipe column and polymer injection method |
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| CN201510319633.3A CN106285588A (en) | 2015-06-11 | 2015-06-11 | Preset cable direct control type electric control layered polymer injection process pipe column and polymer injection method |
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| CN106285588A true CN106285588A (en) | 2017-01-04 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869760A (en) * | 2018-08-29 | 2018-11-23 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of taper valve block triangle shut-off valve |
| CN109630077A (en) * | 2018-12-21 | 2019-04-16 | 中国石油天然气股份有限公司 | Underground layered direct-reading control pipe column with built-in cable for flexible composite pipe |
| CN110284877A (en) * | 2019-05-25 | 2019-09-27 | 中国海洋石油集团有限公司 | A kind of underground permanent setting type dynamic monitoring device and monitoring method |
| CN110984934A (en) * | 2020-01-10 | 2020-04-10 | 宋协翠 | Application method of hydraulic control measuring and adjusting integrated device for polymer injection well |
| CN111042783A (en) * | 2020-01-10 | 2020-04-21 | 宋协翠 | Hydraulic control testing and adjusting integrated device for polymer injection well |
| CN111520136A (en) * | 2020-06-29 | 2020-08-11 | 东北石油大学 | Method for calculating pressure behind blanking plug nozzle by considering water injection starting pressure gradient |
| CN112502692A (en) * | 2020-12-01 | 2021-03-16 | 中国石油天然气集团有限公司 | Underground permanent multi-point monitor and using method |
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| US7322410B2 (en) * | 2001-03-02 | 2008-01-29 | Shell Oil Company | Controllable production well packer |
| CN102011577A (en) * | 2010-12-14 | 2011-04-13 | 北京金科龙石油技术开发有限公司 | Intelligent testing and regulating controller |
| CN202628059U (en) * | 2012-06-08 | 2012-12-26 | 中国石油化工股份有限公司 | Concentric double-pipe polymer injection pipe column |
| CN104179484A (en) * | 2014-08-18 | 2014-12-03 | 哈尔滨工业大学 | Internal magnetic flowmeter type intelligent recoverable injection allocation device |
| CN104234671A (en) * | 2014-09-23 | 2014-12-24 | 中国石油天然气股份有限公司 | Water-gathering same-well layering same-injection process pipe column |
| CN104314536A (en) * | 2014-08-18 | 2015-01-28 | 哈尔滨工业大学 | Zonal injection allocator with inner magnetic flow meter and cable transmission function and use method of injection allocator |
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2015
- 2015-06-11 CN CN201510319633.3A patent/CN106285588A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US7322410B2 (en) * | 2001-03-02 | 2008-01-29 | Shell Oil Company | Controllable production well packer |
| CN102011577A (en) * | 2010-12-14 | 2011-04-13 | 北京金科龙石油技术开发有限公司 | Intelligent testing and regulating controller |
| CN202628059U (en) * | 2012-06-08 | 2012-12-26 | 中国石油化工股份有限公司 | Concentric double-pipe polymer injection pipe column |
| CN104179484A (en) * | 2014-08-18 | 2014-12-03 | 哈尔滨工业大学 | Internal magnetic flowmeter type intelligent recoverable injection allocation device |
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| CN104234671A (en) * | 2014-09-23 | 2014-12-24 | 中国石油天然气股份有限公司 | Water-gathering same-well layering same-injection process pipe column |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869760A (en) * | 2018-08-29 | 2018-11-23 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of taper valve block triangle shut-off valve |
| CN109630077A (en) * | 2018-12-21 | 2019-04-16 | 中国石油天然气股份有限公司 | Underground layered direct-reading control pipe column with built-in cable for flexible composite pipe |
| CN110284877A (en) * | 2019-05-25 | 2019-09-27 | 中国海洋石油集团有限公司 | A kind of underground permanent setting type dynamic monitoring device and monitoring method |
| CN110984934A (en) * | 2020-01-10 | 2020-04-10 | 宋协翠 | Application method of hydraulic control measuring and adjusting integrated device for polymer injection well |
| CN111042783A (en) * | 2020-01-10 | 2020-04-21 | 宋协翠 | Hydraulic control testing and adjusting integrated device for polymer injection well |
| CN111042783B (en) * | 2020-01-10 | 2022-04-08 | 宋协翠 | Hydraulic control testing and adjusting integrated device for polymer injection well |
| CN111520136A (en) * | 2020-06-29 | 2020-08-11 | 东北石油大学 | Method for calculating pressure behind blanking plug nozzle by considering water injection starting pressure gradient |
| CN112502692A (en) * | 2020-12-01 | 2021-03-16 | 中国石油天然气集团有限公司 | Underground permanent multi-point monitor and using method |
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Application publication date: 20170104 |