CN109184629A - A kind of selective sand control seperated layer water injection integral tubular column and its tripping in method - Google Patents
A kind of selective sand control seperated layer water injection integral tubular column and its tripping in method Download PDFInfo
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- CN109184629A CN109184629A CN201811006392.7A CN201811006392A CN109184629A CN 109184629 A CN109184629 A CN 109184629A CN 201811006392 A CN201811006392 A CN 201811006392A CN 109184629 A CN109184629 A CN 109184629A
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- sand control
- water injection
- tubular column
- integral tubular
- flow regulator
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- 238000002347 injection Methods 0.000 title claims abstract description 145
- 239000007924 injection Substances 0.000 title claims abstract description 145
- 239000004576 sand Substances 0.000 title claims abstract description 120
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 116
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 230000002265 prevention Effects 0.000 claims abstract description 11
- 238000004873 anchoring Methods 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 238000012856 packing Methods 0.000 claims description 3
- 108091006146 Channels Proteins 0.000 description 20
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000011010 flushing procedure Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 102000010637 Aquaporins Human genes 0.000 description 1
- 108010063290 Aquaporins Proteins 0.000 description 1
- 244000147058 Derris elliptica Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/10—Setting of casings, screens, liners or the like in wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/06—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for setting packers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a kind of selective sand control seperated layer water injection integral tubular column and its tripping in methods, the integral tubular column includes at least one layer of sand prevention water injection unit, every layer of sand prevention water injection unit includes the packer, injection well downhole flow regulator and sand control screen that successively axial series are integral, and the injection well downhole flow regulator is connected to the sand control screen；The integral tubular column has the function of selective sand control and seperated layer water injection two simultaneously, and a tripping in reduces the job step of the integral tubular column tripping in, linkage injection well downhole flow regulator is adjusted using surveying, measurement and adjustment instrument of tripping in can carry out the tune when surveying to all layers of position, reduce cost, improve water filling quality.
Description
Technical field
The present invention relates to oil exploitation underground process pipe string, espespecially a kind of selective sand control seperated layer water injection integral tubular column and its under
Enter method.
Background technique
The water injection technological string of sand output well during oil exploitation, generally comprises selective sand control tubing string and layered water injection pipe
Column, and selective sand control tubing string and separate layer water injection string are mutually indepedent.First sand control service aid need to be used selective sand control pipe when operation
In column lower going-into-well, set packer after service aid of slipping out of the hand, sand control service aid is risen, then tripping in separate layer water injection string.On
It is fashionable under to state water injection technological string, is divided into two parts and is installed, is i.e. tripping in selective sand control tubing string and tripping in layered water injection pipe
Column, tubular column structure is complicated, operation procedure is cumbersome, the activity duration is long, at high cost.In addition, since separate layer water injection string need to descend to divide
It inside layer sand control pipe, is limited, the size-constrained system of injection well downhole flow regulator in separate layer water injection string, and then is limited by sand control pipe minimum diameter
The maximum of water injection string has been made with fluence.And selective sand control tubing string and separate layer water injection string gap are small, due to knot after long-term injecting water
The reasons such as dirt, separate layer water injection string easily meet card, and processing is difficult when later period workover treatment, need to spend more activity durations and expense
With.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of selective sand control seperated layer water injection integral tubular column and its tripping in
Method, the integral tubular column have the function of selective sand control and seperated layer water injection two simultaneously, and a tripping in reduces the integral tubular column
The job step of tripping in reduces cost, improves water filling quality.
In order to reach the object of the invention, the present invention adopts the following technical scheme:
In a first aspect, providing a kind of selective sand control seperated layer water injection integral tubular column, including at least one layer of sand prevention water injection unit, often
Layer sand prevention water injection unit includes packer, injection well downhole flow regulator and sand control screen that successively axial series are integral, the injection well downhole flow regulator with
The sand control screen connection.
Optionally, the sand control screen includes base tube and sieve, the sieve around the base tube surrounding, and with institute
It states and forms flow-guiding channel between the outer wall of base tube, the flow-guiding channel is close to one end of the injection well downhole flow regulator and going out for the injection well downhole flow regulator
Mouth of a river connection.
Optionally, the sand control screen further includes the box cupling with runner, and the both ends of the base tube are arranged in the box cupling,
The runner is connected to the flow-guiding channel, and the sand control screen is connect by the box cupling with the injection well downhole flow regulator.
Optionally, every layer of sand prevention water injection unit includes the concatenated sand control screen of multiple successively axis, the sand screen
Pipe is interconnected by the box cupling.
Optionally, the packer, injection well downhole flow regulator and sand control screen are connected integral by screw thread.
It optionally, further include measurement and adjustment instrument, the measurement and adjustment instrument is equipped with pressure sensor, temperature sensor, flow sensor
And mechanical arm, the injection well downhole flow regulator is interior to be equipped with adjustable water nozzle, and the mechanical arm and the adjustable water nozzle are cooperatively connected, and the survey is adjusted
Instrument adjusts the aperture of the adjustable water nozzle by the mechanical arm.
Optionally, further include with the concatenated oil pipe of packer axis, tubing hanger, underground peace are in series on the oil pipe
Full valve and telescopic joint.
Optionally, the bottom end of the selective sand control seperated layer water injection integral tubular column is equipped with sump packer and single drag chute is inserted into surely
Sealing.
Second aspect provides a kind of tripping in method of selective sand control seperated layer water injection integral tubular column as described above, comprising:
It will be in the disposable tripping in casing of the selective sand control seperated layer water injection integral tubular column；
It is suppressed into the selective sand control seperated layer water injection integral tubular column, by the selective sand control seperated layer water injection integral tubular column
It sets in casing.
Compared with prior art, the beneficial effects of the present invention are:
1, the injection well downhole flow regulator in the present invention is directly connected integrally with sand control screen, makes selective sand control seperated layer water injection of the invention
Integral tubular column realizes water-filling function and sand-proof function simultaneously, when running string, only needs tubing string of tripping in, does not need to remove
Sand control service aid reduces job step, shortens duty cycle.Without individual separate layer water injection string, needed for saving in sand control section
Water-filling oil pipe cost, while water injection string being avoided to meet card due to going out fouling etc..
2, injection well downhole flow regulator is connected integrally with sand control screen in the present invention, makes the size of injection well downhole flow regulator not by sand control screen internal diameter
Limitation, so as to increase the outer diameter and inner diameter of injection well downhole flow regulator, increases the rulers such as motor, flowmeter, the flow channels in injection well downhole flow regulator
It is very little, and then improve to survey and adjust efficiency, survey and adjust precision, improve maximum injecting quantity and mechanical performance.Pass through downhole temperature, pressure, flow
Equal parameter real time monitorings, online allotment, survey adjust linked manner to carry out water filling and measure tune, and survey adjusts precision high, high-efficient.
3, the sand control screen in the present invention includes base tube and sieve, and flow-guiding channel, water conservancy diversion are formed between base tube and sieve
Channel is connected to the water outlet of injection well downhole flow regulator, flows into water filling in flow-guiding channel by injection well downhole flow regulator, using the sieve on the outside of flow-guiding channel
Net flows into stratum.The sand control screen is not only able to achieve sand-proof function, but also has guide functions, and enable sand control screen directly with match
Hydrophone series connection is integral.
4, single stream anchoring insertion seal in the present invention can form anchorage force with sump packer, to judge the present invention
Integral tubular column whether tripping in place, and can prevent the wriggling of integral tubular column.
5, the present invention in telescopic joint can effective compensation integral tubular column of the present invention because caused by temperature and pressure effect stretch,
The stress condition for improving integral tubular column, extends the service life of water injection pipe.
6, the adjustable water distributor core connecting with measurement and adjustment instrument is equipped in the present invention in injection well downhole flow regulator, which passes through adjustable
Hydrophone fuse realizes that conditioning function is surveyed in layering.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by specification, right
Specifically noted structure is achieved and obtained in claim and attached drawing.
Detailed description of the invention
Attached drawing is used to provide to further understand technical solution of the present invention, and constitutes part of specification, with this
The embodiment of application technical solution for explaining the present invention together, does not constitute the limitation to technical solution of the present invention.
Fig. 1 is a kind of cross-sectional view of selective sand control seperated layer water injection integral tubular column provided in an embodiment of the present invention；
Fig. 2 is the cross-sectional view of sand control screen provided in an embodiment of the present invention.
1- tubing hanger, 2- oil pipe, 3- storm valve, 4- telescopic joint, 5- first layer packer, 6- first layer blind pipe, 7-
First layer injection well downhole flow regulator, 8- first layer sand control screen, 9- second layer packer, 10- second layer blind pipe, 11- second layer injection well downhole flow regulator,
12- second layer sand control screen, 13- third layer packer, 14- third layer blind pipe, 15- third layer injection well downhole flow regulator, 16- third layer sand control
Screen casing, the mono- stream anchoring insertion seal of 17-, 18- sump packer, 19- liquid controling pipe line, 20- casing, 21- fill the water flow path,
22- base tube, 23- sieve, 24- sheath, 25- box cupling, the channel 26-, 27- flow-guiding channel.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature can mutual any combination.
The present invention provides a kind of selective sand control seperated layer water injection integral tubular column, including at least one layer of sand prevention water injection unit, and every layer
Sand prevention water injection unit includes the packer, injection well downhole flow regulator and sand control screen that successively axial series are integral, the injection well downhole flow regulator and institute
State sand control screen connection.
As shown in Figure 1, the embodiment of the present invention provides a kind of selective sand control seperated layer water injection integral tubular column, which includes
3 layers of water injection unit, wherein first layer water injection unit includes that first layer packer 5, first layer that successively axial series are integral are blind
Pipe 6, first layer injection well downhole flow regulator 7 and first layer sand control screen 8, first layer injection well downhole flow regulator 7 are connected to first layer sand control screen 8.Second
Layer water injection unit include the second layer packer 9, second layer blind pipe 10, second layer injection well downhole flow regulator 11 that successively axial series are integral with
And second layer sand control screen 12, second layer injection well downhole flow regulator 11 are connected to second layer sand control screen 12.Third layer water injection unit include according to
Secondary axial direction is connected into integrated third layer packer 13, third layer blind pipe 14, third layer injection well downhole flow regulator 15 and third layer sand screen
Pipe 16, third layer injection well downhole flow regulator 11 are connected to third layer sand control screen 12.Preset sand setting is additionally provided in the bottom of the integral tubular column
Packer 18.Injection well downhole flow regulator in the present invention is directly connected integrally with sand control screen, makes selective sand control seperated layer water injection of the invention
Integral tubular column realizes water-filling function and sand-proof function simultaneously, when running string, only needs tubing string of tripping in, does not need to remove
Sand control service aid reduces job step, shortens duty cycle.Without individual separate layer water injection string, needed for saving in sand control section
Water-filling oil pipe cost, while water injection string being avoided to meet card due to going out fouling etc..In addition, injection well downhole flow regulator and sand screen in the present invention
Pipe series connection is integral, limits the size of injection well downhole flow regulator by sand control screen internal diameter, so as to increase injection well downhole flow regulator outer diameter and
Internal diameter increases motor, flowmeter, flow channels equidimension in injection well downhole flow regulator, and then improves to survey and adjust efficiency, survey and adjust precision, mentions
High maximum injecting quantity and mechanical performance.It is online to deploy by parameter real time monitorings such as downhole temperature, pressure, flows, it surveys and adjusts linkage
Mode carries out water filling and measures tune, surveys and adjusts precision high, high-efficient.
The water injection unit number of plies in selective sand control seperated layer water injection integral tubular column of the invention is unrestricted, every layer of water injection unit
It can tripping in one or more injection well downhole flow regulator.
A kind of sand control screen as depicted in figs. 1 and 2, by taking first layer sand control screen 8 as an example, including base tube 22 and sieve
23, the interior channel 26 being equipped with for filling the water circulation of base tube 22, the side wall of base tube 22 does not punch.Sieve 23 is tubular structure, sieve
23 surround the surrounding of base tube 22, and flow-guiding channel 27 is formed between the outer wall of base tube 22, and flow-guiding channel 27 is matched close to first layer
One end of hydrophone 7 is connected to the water outlet of first layer injection well downhole flow regulator 7, and flow-guiding channel 27 passes through far from one end of first layer injection well downhole flow regulator 7
Second layer packer 9 seals.A part of water filling is flowed into flow-guiding channel 27 by first layer injection well downhole flow regulator 7 in integral tubular column, then
Stratum is flowed by the sieve 23 in 27 outside of flow-guiding channel；The water filling of another part is flowed by second layer blind pipe 10 in integral tubular column
Enter second layer water injection unit, a portion water filling is flowed into flow-guiding channel 27 by second layer injection well downhole flow regulator 11, using water conservancy diversion
The sieve 23 in 27 outside of channel flows into stratum；Another part water filling continues to flow into third layer water injection unit, repeatedly, until stream
Enter the last layer water injection unit, water filling flow path 21 as shown in Figure 1.Sand control screen in the present invention had both been able to achieve sand control function
Can, and there are guide functions, additionally it is possible to it directly connects with injection well downhole flow regulator integrally.
As shown in Fig. 2, sand control screen further includes the sheath 20 for being set in 23 outside of sieve, and the box cupling with runner
25, the both ends of base tube 22 are arranged in box cupling 25, and box cupling 25 includes the first tube body and the second pipe being set on the outside of the first tube body
Body forms runner between the first tube body and the second tube body, which is connected to the flow-guiding channel 27 of sand control screen, and the two of base tube 22
End is connect with first layer injection well downhole flow regulator 7 and second layer packer 9 respectively by box cupling 25.
Further, every layer of sand prevention water injection unit includes multiple concatenated sand control screens of successively axis, multiple sand control screens
It is interconnected by box cupling 25.Enable every layer of sand prevention water injection unit according to scene fill the water situation, connect multiple sand control screens with
The sand control pipe of length needed for being formed.
Packer, injection well downhole flow regulator and sand control screen in the present invention in every layer of water injection unit pass through screw thread and are connected into one
Body, consequently facilitating the series connection and disassembly of water injection unit, and after making water injection unit tripping in, packer, injection well downhole flow regulator and sand screen
Manage it is not easily to fall off, connection it is stronger.In some embodiments, the present invention can also will be insulated using other connection types
Device, injection well downhole flow regulator and sand control screen series connection are integral, such as welding etc..
Selective sand control seperated layer water injection integral tubular column of the invention further includes measurement and adjustment instrument, measurement and adjustment instrument be equipped with pressure sensor,
Temperature sensor, flow sensor and mechanical arm, injection well downhole flow regulator is interior to be equipped with adjustable water nozzle, and mechanical arm and adjustable water nozzle cooperation connect
It connects, so that measurement and adjustment instrument adjusts the aperture of adjustable water nozzle by mechanical arm.Measurement and adjustment instrument in the present invention passes through steel wire cable and ground
Equipment is connected, to realize the adjusting in ground control injection well downhole flow regulator outflow water.
In some embodiments, it as shown in Figure 1, the injection well downhole flow regulator in the present invention is to survey to adjust one, is equipped in injection well downhole flow regulator adjustable
Water distributor core, adjustable water distributor core connect with ground installation by liquid controling pipe line, is wirelessly connected or cable connection, to realize
In the adjusting of ground control injection well downhole flow regulator outflow water.Injection well downhole flow regulator in the present invention is to survey to adjust linkage injection well downhole flow regulator, adjustable injection well downhole flow regulator core
Son is step-less adjustment.
Further, it is equipped with counter-flow resisting structure in the injection well downhole flow regulator in the present invention, keeps water filling anti-by passing through in injection well downhole flow regulator
Counter to spit structure outflow, stratum liquid cannot be flowed into injection well downhole flow regulator by counter-flow resisting structure.
Further, as shown in Figure 1, the top of first layer packer 5 is in series with oil pipe 2, tubing hanger is in series on oil pipe 2
1, storm valve 3 and telescopic joint 4.Tubing hanger 1 is sealed for hanging integral tubular column, and with wellhead oil tree.Storm valve 3
It is connect by liquid controling pipe line 19 with ground control panel, realizes well control function.Telescopic joint 4 can effective compensation integral tubular column because of temperature and
It stretches caused by pressure effect, improves the stress condition of integral tubular column, extend the service life of tubing string.
Packer in the present invention is lowered into drilling well after projected depth, is just suppressed and is set by oil pipe 2, slips anchoring exists
In casing 20, lower upper tubing string weight is carried, rubber rises envelope, packing stratum；Top gives up and partially can directly slip out of the hand when well workover
Out, dedicated tie back tool can tieback under.Whether packer in the present invention can judge external packing element by suppressing inside tubing string
Effective sealing is formed with casing, cable or reserved anti-flushing well channel can be passed through.
Further, as shown in Figure 1, the bottom end of selective sand control seperated layer water injection integral tubular column of the invention is insulated equipped with sand setting
Device 18 and single stream anchoring insertion seal 17.Single stream anchoring insertion seal 17 can form anchorage force with sump packer 18, to
Judge whether integral tubular column transfers in place, and can prevent integral tubular column from wriggling.Single stream is equipped with inside single stream anchoring insertion seal 17
Valve, to set packer and circulation well cleanup.
The present invention also provides a kind of tripping in methods of above-mentioned selective sand control seperated layer water injection integral tubular column, comprising:
It will be in the disposable tripping in casing of the selective sand control seperated layer water injection integral tubular column；
It fills the water and suppresses into the selective sand control seperated layer water injection integral tubular column, by the selective sand control seperated layer water injection one
Tubing string is set in casing.
Specifically, the tripping in method of above-mentioned selective sand control seperated layer water injection integral tubular column includes:
1) standpipe, preventer group are filled；
2) pipe cleaning well-flushing；
3) perforating job；
4) pipe cleaning well-flushing again；
5) sump packer under wireline operation or drilling rod；
It 6) will be in the selective sand control seperated layer water injection integral tubular column tripping in casing；
7) it bottoms out: pushing integral tubular column, by single stream anchoring insertion seal insertion sump packer, propose integral tubular column,
It is repeated twice, determines integral tubular column decentralization in place, and record position；
8) basis bottoms out as a result, connecting with long oil pipe；
9) connected pipes are hung, and are sat and are hung；
10) standpipe, preventer group are torn open；
11) production tree is filled；
12) it is just filling the water to build the pressure into oil pipe and is setting all packers；
13) wireline operation tripping in measurement and adjustment instrument, successively opens injection well downhole flow regulator；Water filling requires to carry out layering survey according to oil reservoir injection allocation
Adjust operation.
Although disclosed herein embodiment it is as above, the content only for ease of understanding the present invention and use
Embodiment is not intended to limit the invention.Technical staff in any fields of the present invention is taken off not departing from the present invention
Under the premise of the spirit and scope of dew, any modification and variation, but the present invention can be carried out in the form and details of implementation
Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.
Claims (9)
1. a kind of selective sand control seperated layer water injection integral tubular column, which is characterized in that including at least one layer of sand prevention water injection unit, every layer anti-
Sand water injection unit includes the packer, injection well downhole flow regulator and sand control screen that successively axial series are integral, the injection well downhole flow regulator with it is described
Sand control screen connection.
2. selective sand control seperated layer water injection integral tubular column according to claim 1, which is characterized in that the sand control screen includes
Base tube and sieve, the sieve surround the surrounding of the base tube, and form flow-guiding channel between the outer wall of the base tube, institute
Flow-guiding channel is stated to be connected to close to one end of the injection well downhole flow regulator with the water outlet of the injection well downhole flow regulator.
3. selective sand control seperated layer water injection integral tubular column according to claim 2, which is characterized in that the sand control screen also wraps
The box cupling with runner is included, the both ends of the base tube are arranged in the box cupling, and the runner is connected to the flow-guiding channel, described
Sand control screen is connect by the box cupling with the injection well downhole flow regulator.
4. selective sand control seperated layer water injection integral tubular column according to claim 3, which is characterized in that every layer of sand prevention water injection unit
Including the concatenated sand control screen of multiple successively axis, the sand control screen is interconnected by the box cupling.
5. selective sand control seperated layer water injection integral tubular column according to claim 1 to 4, which is characterized in that the packing
Device, injection well downhole flow regulator and sand control screen are connected integral by screw thread.
6. selective sand control seperated layer water injection integral tubular column according to claim 1 to 4, which is characterized in that further include surveying to adjust
Instrument, the measurement and adjustment instrument are equipped with pressure sensor, temperature sensor, flow sensor and mechanical arm, set in the injection well downhole flow regulator
There is adjustable water nozzle, the mechanical arm and the adjustable water nozzle are cooperatively connected, and the measurement and adjustment instrument passes through described in mechanical arm adjusting
The aperture of adjustable water nozzle.
7. selective sand control seperated layer water injection integral tubular column according to claim 1 to 4, which is characterized in that further include and institute
The concatenated oil pipe of packer axis is stated, is in series with tubing hanger, storm valve and telescopic joint on the oil pipe.
8. selective sand control seperated layer water injection integral tubular column according to claim 1 to 4, which is characterized in that the layering is anti-
The bottom end of sand seperated layer water injection integral tubular column is equipped with sump packer and single stream anchoring insertion seal.
9. a kind of tripping in method of the selective sand control seperated layer water injection integral tubular column as described in the claims 1-8 is any, special
Sign is, comprising:
It will be in the disposable tripping in casing of the selective sand control seperated layer water injection integral tubular column；
It is suppressed into the selective sand control seperated layer water injection integral tubular column, the selective sand control seperated layer water injection integral tubular column is set
In in casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811006392.7A CN109184629A (en) | 2018-08-30 | 2018-08-30 | A kind of selective sand control seperated layer water injection integral tubular column and its tripping in method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811006392.7A CN109184629A (en) | 2018-08-30 | 2018-08-30 | A kind of selective sand control seperated layer water injection integral tubular column and its tripping in method |
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| Publication Number | Publication Date |
|---|---|
| CN109184629A true CN109184629A (en) | 2019-01-11 |
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|---|---|---|---|
| CN201811006392.7A Pending CN109184629A (en) | 2018-08-30 | 2018-08-30 | A kind of selective sand control seperated layer water injection integral tubular column and its tripping in method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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