CN108020372A - Measure the system and method for being prefilled with gravel sand control tube voltage drop - Google Patents
Measure the system and method for being prefilled with gravel sand control tube voltage drop Download PDFInfo
- Publication number
- CN108020372A CN108020372A CN201711239331.0A CN201711239331A CN108020372A CN 108020372 A CN108020372 A CN 108020372A CN 201711239331 A CN201711239331 A CN 201711239331A CN 108020372 A CN108020372 A CN 108020372A
- Authority
- CN
- China
- Prior art keywords
- tube
- sand control
- sand
- inner tube
- outer tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention provides a kind of system and method for measuring and being prefilled with gravel sand control tube voltage drop.The system of the present invention includes supporting part, sand control portion and test section, and the supporting part includes the outer tube being coaxially disposed and inner tube, said inner tube are arranged on the inside of the outer tube outlet side, and seal is equipped between said inner tube input end and the outer tube；The sand control portion includes the sand control module being coaxially disposed with said inner tube and the drainage module being made of multiple drainage tubes, the sand control module includes outer net, Intranet and the gravel layer being arranged between the outer net and Intranet, the outer net and Intranet sealing are fixed on the inner wall of said inner tube outlet side, multiple flow-guiding mouths are interval with the inner wall of said inner tube outlet side, each flow-guiding mouth is connected with the input end of each drainage tube；The test section includes multiple pressure sensors, and each pressure sensor is arranged on the port of export of each drainage tube.The system can accurately measure the pressure drop after being prefilled with gravel sand control blockage.
Description
Technical field
Loose sand oil accumulation sand block filter medium clogging research field of the present invention, and in particular to one kind measurement is prefilled with gravel sand control
The system and method for tube voltage drop.
Background technology
Sand control refers to be directed to oil reservoir and oil well condition in oil recovery process, correct to select well cementation, completion mode, and it is reasonable to formulate
Exploitation measure, control producing pressure differential, limitation percolation flow velocity prevents the measure of sand plug.At present, mechanical sand control can be divided into two classes, the
A kind of mainly to carry out sand control using mechanical tubing string, mechanical tubing string is such as wire-wrapped screen, slotted liner, various sand screens；The party
Though method is simple and practicable, but sand controlling result is poor, and sand control pipe is easily blocked by reservoir sand, thus can not effectively prevent reservoir sand into
Enter pit shaft.Second class is mainly the filling of tubing string gravel, after its mechanical tubing string of tripping in wire-wrapped screen or slotted liner etc. in pit shaft,
It is filled in again with gravel or other similar materials in the annular space of mechanical tubing string and casing, so that multistage filter sand barrier is formed,
Sand controlling result is relatively preferable.
The production practices of loose sand oil accumulation sand proof well show, sand block medium (the sand block layer and gravel layer of mechanical screen casing)
Block one of main problem for progressively becoming that puzzlement sand proof well normally produces.In sand proof well production process, formation fluid is taken
The solid phase tamper impact sand block medium such as band stratum fine sand, mechanical admixture, clay shale, if solid-phase media cannot pass through
Sand block layer, then can adhere to or invade inside sand block layer；If can not discharge, it will cause sand block layer permeability reduction, is formed stifled
Plug, and then seriously affect oil well output.
At present, be usually not allowed there are pressure measurement for the test system and method for sand-controlled well plugging mechanism or can not pressure measurement, pass
After sensor is fragile, pressure tap easily blocks, glass tube is processed the problems such as intensity decreases.
The content of the invention
The present invention provides a kind of system and method for measuring and being prefilled with gravel sand control tube voltage drop, which being capable of essence
Really measure the pressure drop after being prefilled with gravel sand control blockage.
The present invention provides a kind of system for measuring and being prefilled with gravel sand control tube voltage drop, including supporting part, sand control portion and detection
Portion,
The supporting part includes the outer tube being coaxially disposed and inner tube, said inner tube are arranged on the interior of the outer tube outlet side
Portion, is equipped with seal between said inner tube input end and the outer tube；
The sand control portion includes the sand control module being coaxially disposed with said inner tube and the drainage mould being made of multiple drainage tubes
Group, the sand control module include outer net, Intranet and the gravel layer being arranged between the outer net and Intranet, the outer net and Intranet
Sealing is fixed on the inner wall of said inner tube outlet side, and multiple flow-guiding mouths are interval with the inner wall of said inner tube outlet side,
Each flow-guiding mouth is connected with the input end of each drainage tube；
The test section includes multiple pressure sensors, and each pressure sensor is arranged on the port of export of each drainage tube.
The system of the present invention is used to measure the pressure drop for being prefilled with gravel sand-proof pipe；Wherein, gravel sand-proof pipe is prefilled with as this
Field conventional structure.Specifically, being prefilled with gravel sand-proof pipe includes base tube, the sand control pipe shell being set on the outside of base tube and filling
Gravel layer between base tube and sand control pipe shell, is evenly distributed with multiple holes for water conservancy diversion on base tube and sand control pipe shell
Gap.
In the system of the present invention, sand control module is the partial structurtes for being prefilled with gravel sand-proof pipe to be measured；Wherein, prevent
The outer net of sand mo(u)ld group corresponds to the sand control pipe shell for being prefilled with gravel sand-proof pipe, and the Intranet of sand control module, which corresponds to, is prefilled with gravel
The base tube of sand-proof pipe, the gravel layer of sand control module correspond to the gravel layer for being prefilled with gravel sand-proof pipe.Thus, system of the invention
The pressure drop of side inside and outside sand control pipe shell can accurately be measured, side pressure drop and sand-proof pipe gravel layer are different inside and outside sand-proof pipe base tube
The pressure drop of position.
Further, system of the invention further includes feed system, and the feed system includes motor, mixing part and charging
Portion, the feeder are sealingly disposed in the input end of the outer tube, and sand inlet and oil inlet are equipped with the feeder, described
Mixing part is plugged in the outer tube and is driven by the motor.
Further, multiple flow-guiding mouths set the import end position of position including the outer net, the outer net
Export end position, any position of the gravel layer and the import end position of the Intranet.
Further, system of the invention further includes adjustment portion, and the adjustment portion includes gland and is arranged in the gland
The compression bar at middle part, the gland are located at the port of export of the Intranet, and the compression bar is threaded on the gland.
Further, the inlet side of said inner tube is that cross sectional shape is trapezoidal flare openings, flare openings it is big
Hold the input end towards said inner tube.
Further, the trapezoidal base angle is 20-30 degree, and the trapezoidal height is 20-40mm.
Further, sieve is provided with the flow-guiding mouth, the aperture of the sieve is 0.5mm.
Further, the outer tube and inner tube are PC transparent pipes, the compressive resistances of the PC transparent pipes for 10MPa with
On.
The present invention also provides a kind of method for measuring and being prefilled with gravel sand control tube voltage drop, using any of the above-described system
Carry out, the described method includes：
Mulling liquid is set to enter the outer tube from the input end of the outer tube；
Mulling liquid into outer tube subsequently enters the sand control portion and flows out；
During mulling liquid stream goes out, the pressure of fluid in each drainage tube is gathered by multiple pressure sensors
Value.
The present invention also provides a kind of method for measuring and being prefilled with gravel sand control tube voltage drop, using above-mentioned with feed system
System carries out, the described method includes：
Sand and oil is set not to enter the outer tube by the sand inlet and oil inlet, it is outer to entering using the mixing part
The sand and oil of pipe are stirred, and form mulling liquid；
The mulling liquid subsequently enters the sand control portion and flows out；
During mulling liquid stream goes out, the pressure of fluid in each drainage tube is gathered by multiple pressure sensors
Value.
The gravel layer pressure measurement that the system and method for the present invention are solved present in existing measuring method is not allowed, sensor rapid wear
After bad, pressure tap easily blocks, glass tube is processed the problems such as intensity decreases, can accurately it be surveyed using the system and method for the present invention
Measure the pressure drop of side inside and outside sand control pipe shell, inside and outside sand-proof pipe base tube side pressure drop and sand-proof pipe gravel layer diverse location pressure drop,
So as to the blocking process for being prefilled with gravel sand-proof pipe under truly simulated formation pressure differential, kept off for loose sand oil accumulation
The blocking research of sand medium provides certain technical support.
Brief description of the drawings
Fig. 1 is the stereogram that the measurement of an embodiment of the present invention is prefilled with the system of gravel sand control tube voltage drop；
Fig. 2 is the profile that the measurement of an embodiment of the present invention is prefilled with the system of gravel sand control tube voltage drop；
Fig. 3 is enlarged drawing at the A of Fig. 2；
Fig. 4 is the setting position view of the flow-guiding mouth of an embodiment of the present invention；
Fig. 5 is the setting position view of the flow-guiding mouth of another embodiment of the present invention；
Fig. 6 is the structure diagram of the end cap of an embodiment of the present invention；
Fig. 7 is the structure diagram of the feed system of an embodiment of the present invention；
Fig. 8 is the structure diagram of the adjustment portion of an embodiment of the present invention.
Description of reference numerals：
11：Outer tube 111：Exhaust outlet 12：Inner tube
121：Flow-guiding mouth 1211：First flow-guiding mouth 1212：Second flow-guiding mouth
1213：3rd flow-guiding mouth 1214：4th flow-guiding mouth 122：Flare openings
123：Step 13：Seal 14：Flange
15：Pull rod 16：End cap 161：Oil outlet
162：Threaded hole 163：Drainage tube outlet 164：Seal
17：Gap 21：Outer net 211：Seal
22：Intranet 221：Seal 23：Gravel layer
24：Drainage tube 241：First drainage tube 242：Second drainage tube
243：3rd drainage tube 244：4th drainage tube 31：Pressure sensor
41：Motor 42：Mixing part 421：Agitating shaft
422：Blade 43：Feeder 431：Sand inlet
432：Oil inlet 433：Blow valve 44：Mandrel connector
45：Shaft sealer 46：Pressure cap 47：Flange
51：Gland 511：Outlet 52：Compression bar
53：Screw 61：Stent
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, attached drawing and implementation below in conjunction with the present invention
Example, is clearly and completely described the technical solution in the embodiment of the present invention, it is clear that described embodiment is the present invention
Part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
All other embodiments obtained under the premise of creative work are made, belong to the scope of protection of the invention.
Embodiment 1
With reference to shown in Fig. 1 to Fig. 8, the system that measurement of the invention is prefilled with gravel sand control tube voltage drop includes supporting part, prevents
Sand portion and test section, supporting part includes the outer tube 11 being coaxially disposed and inner tube 12, inner tube 12 are arranged on the interior of 11 outlet side of outer tube
Portion, is equipped with seal 13 between 12 input end of inner tube and outer tube 11；Sand control portion includes the anti-sand mo(u)ld being coaxially disposed with inner tube 12
Group and the drainage module being made of multiple drainage tubes 24, sand control module include outer net 21, Intranet 22 and be arranged on outer net 21 with it is interior
Gravel layer 23 between net 22, outer net 21 and the sealing of Intranet 22 are fixed on the inner wall of 12 outlet side of inner tube, are exported in inner tube 12
Multiple flow-guiding mouths 121 are interval with the inner wall of side, each flow-guiding mouth 121 is connected with the input end of each drainage tube 24；Detection
Portion includes multiple pressure sensors 31, and each pressure sensor 31 is arranged on the port of export of each drainage tube 24.
The system of the present invention passes through the pressure drop after being prefilled with gravel sand-proof pipe for measuring mulling liquid；In the present invention, will
One end that mulling liquid enters is set to input end, and one end that mulling liquid stream goes out is set to the port of export.
In the system of the present invention, sand control module is the partial structurtes for being prefilled with gravel sand-proof pipe to be measured；Wherein, prevent
The outer net 21 of sand mo(u)ld group corresponds to the sand control pipe shell for being prefilled with gravel sand-proof pipe, and the Intranet 22 of sand control module, which corresponds to, to be prefilled with
The base tube of gravel sand-proof pipe, the gravel layer 23 of sand control module correspond to the gravel layer for being prefilled with gravel sand-proof pipe.
In the present invention, supporting part is mainly used for carrying sand control portion；With reference to shown in Fig. 1 and Fig. 2, the primary structure of supporting part
Including inner tube 12 and the outer tube 11 being set in outside inner tube 12；It is understood that the diameter of outer tube 11 is more than the straight of inner tube 12
Footpath, so that with certain gap 17 when inner tube 12 is coaxially disposed with outer tube 11.
In the supporting part of the present invention, for inner tube 12 mainly as the installation carrier in sand control portion, outer tube 11 is mainly inner tube 12
Provide a supporting role, the seal 13 between inner tube 12 and outer tube 11 makes inner tube 12 be relatively fixed with outer tube 11, while the sealing
Part 13 can make mulling liquid fully enter inner tube 12 and then completely into the measurement for carrying out pressure drop in sand control portion.In drop measurement mistake
Cheng Zhong, the gap 17 between inner tube 12 and outer tube 11 can be full of fluid (passing through the mulling liquid in sand control portion), and inner tube 12 is measuring
During the pressure born outer tube 11 can be transferred to by the fluid and seal 13, and then ensure that the intensity of inner tube 12.
The present invention does not limit the material of inner tube 12 and outer tube 11 strictly, as long as can ensure its intensity.One
In embodiment, outer tube 11 and inner tube 12 all can be PC transparent pipes, the compressive resistance of PC transparent pipes is more than 10MPa；PC is saturating
Bright pipe is both easy to observe experiment process, and outer tube 11 and inner tube 12 can be made to possess required compressive resistance.
Under the set-up mode, system of the invention is resistant to the high pressure of 5-10MPa.
In the present invention, outer tube 11 is conventional tubular structure；As shown in Figure 1, in the inlet end and an outlet end of outer tube 11
Flange 14 can be set, consequently facilitating being fixedly connected with other components (such as feed system etc.)；In addition, 11 both ends of outer tube
Flange 14 between can be fixedly connected by multiple pull rods 15, and then ensure that the intensity of outer tube 11.
Further, exhaust outlet 111 can be set on outer tube 11, and it is right before each on-test that exhaust outlet 111 is used for
System is vacuumized, and to make flow-guiding mouth 121 and 24 saturation of drainage tube expire experimental oil, and then ensures the accurate of measurement result
Property.
With reference to shown in Fig. 2 and Fig. 3, in the present invention, it is trapezoidal that the inlet side of inner tube 12, which could be provided as cross sectional shape,
Flare openings 122, the input end of the big ends of flare openings 122 towards inner tube 12；The flare openings 122 are conducive to change
The fluidised form of fluid, is conducive to mulling liquid and forms radial flow in outer tube 11.Further, above-mentioned trapezoidal base angle can be 20-30
Degree, such as 22 degree；Trapezoidal height can be 20-40mm, such as 30mm.
In the present invention, flow-guiding mouth 121 is arranged on the inner wall of inner tube 12, it not exclusively penetrates through 12 inner wall of inner tube, so that
The intensity of inner tube 12 can be avoided to decline to a great extent.
Further, sieve (not shown) can also be set on each flow-guiding mouth 121；The sieve and flow-guiding mouth 121 are same
The heart and same diameter, it is used for stopping thin solid phase particles, so as to avoid thin solid particle in injected water flow-guiding mouth 121 from leading to not be pressed
Drop measurement.Aperture and fixed form to sieve do not limit strictly, and the aperture of sieve for example could be provided as 0.5mm；In addition,
Sieve can be fixed on flow-guiding mouth 121 by adhesive.
The present invention does not limit the setting position of the flow-guiding mouth 121 on 12 inner wall of inner tube strictly, can be according to actual measurement
Need rationally to set.Specifically, the setting position of multiple flow-guiding mouths 121 can include import end position, the outer net 21 of outer net 21
Outlet end position, any position of gravel layer 23 and the import end position of Intranet 22.Above-mentioned setting position is easy to accurate measurement
The pressure drop of 23 diverse location of side pressure drop and gravel layer inside and outside pressure drop, Intranet 22 on the outside of in sand control portion outer net 21.
As shown in figure 4, the first flow-guiding mouth 1211 can be arranged on the import end position of outer net 21, the second flow-guiding mouth 1212 can
To be arranged on the outlet end position of outer net 21, the pressure drop in outside in sand control portion outer net 21 can be accurately measured at this time；Such as Fig. 5 institutes
Show, the 3rd flow-guiding mouth 1213 can be arranged on any position of gravel layer 23, and the 4th flow-guiding mouth 1214 can be arranged on Intranet 22
Import end position, both can accurately measure the pressure drop of 23 above-mentioned position of gravel layer at this time, additionally it is possible in accurate measurement sand control portion
The pressure drop in outside in net 22.
In the present invention, the port of export of outer tube 11 can be closed by end cap 16；As shown in fig. 6, end cap 16 has
Be useful for the oil outlet 161 of fluid outflow, multiple threaded holes 162 for end cap 16 being fixed on outer tube 11, for multiple
The multiple drainage tubes outlet 163 and the seal 164 for sealing that drainage tube is pierced by.It is understood that in outer tube 11
The port of export corresponds to and offers multiple threaded holes, and end cap 16 can be fixed on the port of export of outer tube 11 by normal thread connector.
In the present invention, sand control portion is used to simulate the blocking process for being prefilled with gravel sand-proof pipe.Wherein, outer net 21, gravel
Layer 23 and Intranet 22 all can be this area conventional structure；It is used for it is understood that outer net 21 and Intranet 22 have respectively
The deflector hole of water conservancy diversion, outer net 21 and Intranet 22 for example can be the same of the one group of a diameter of 60mm cut on 8.5in screen casings or so
Heart disk sieve, the gravel of gravel layer 23 for example can be the ceramsite propping agent of 20-70 mesh.
The fixed form of outer net 21 and Intranet 22 in inner tube 12 is not limited strictly, as long as being coaxially disposed with inner tube 12
And the mulling liquid in inner tube 12 can be made completely by outer net 21, gravel layer 23 and Intranet 22.Specifically, such as Fig. 2 and
Shown in Fig. 3, seal 211 can be set between outer net 21 and inner tube 12, can be set between Intranet 22 and inner tube 12 close
Sealing 221, it can make the mulling liquid in inner tube 12 completely by outer net 21 and Intranet 22, and it is outer to prevent that fluid from passing through
Hole pressure release between net 21 and Intranet 22 and 12 tube wall of inner tube and cause pressure measurement inaccurate, ensure that the standard of measurement result
True property.Furthermore, it is possible to set step 123 on the inner wall of inner tube 12, which can be as the fixation site of outer net 21；
Outer net 21 can be by the gluing step 123 for being fixed on inner tube 12 of high temperature high voltage resistant epoxide-resin glue.
In the present invention, drainage tube 24 be used for by the fluid at flow-guiding mouth 121 lead to outside pressure sensor 31 into
Row pressure measurement, each drainage tube 24 is axial to be set；It is understood that the setting quantity of multiple drainage tubes 24 and multiple flow-guiding mouths
121 setting quantity is identical, and each drainage tube 24 corresponds to a flow-guiding mouth 121, so that the fluid at each flow-guiding mouth 121 can lead to
A drainage tube 24 is crossed to draw.Fluid conduction to exterior pressure sensor 31 is carried out pressure measurement by which in the axial direction, is conducive to
Improve the bearing capacity of inner tube 12.In addition, the length of multiple drainage tubes 24 could be provided as identical, it is conducive to avoid pressure from prolonging
Slow problem, and then ensure that the accuracy of measurement result.The size of drainage tube 24 is not limited strictly, the internal diameter of drainage tube 24
Such as can be 1.3mm, outside diameter for example can be 3mm.
Specifically, as shown in figure 4, the first drainage tube 241 draws the fluid at the first flow-guiding mouth 1211, the second drainage tube
242 draw the fluid at the second flow-guiding mouth 1212, and the 3rd drainage tube 243 draws the fluid at the 3rd flow-guiding mouth 1213, and the 4th draws
Flow tube 244 draws the fluid at the 4th flow-guiding mouth 1214, so as to accurately measure sand control according to the pressure of fluid at each water conservancy diversion
The pressure drop of 23 diverse location of side pressure drop and gravel layer inside and outside pressure drop, Intranet 22 on the outside of in portion's outer net 21.
In the present invention, detecting system includes multiple pressure sensors 31 (not shown)；It is understood that multiple pressure
The setting quantity of sensor 31 is identical with the setting quantity of multiple drainage tubes 24, so that the fluid that each drainage tube 24 is drawn can be with
Pressure measurement is carried out by a pressure sensor 31.Pressure sensor 31 is not limited strictly, such as micro pressure can be used to pass
Sensor, the range of pressure sensor 31 can be 0-5MPa, and measurement accuracy can be 0.001MPa.In addition, each pressure sensor
31 can be connected with acquisition systems such as computers, consequently facilitating being recorded and being analyzed to measurement data.
Further, system of the invention can also include feed system；With reference to shown in Fig. 7, feed system includes motor
41st, mixing part 42 and feeder 43, feeder 43 are sealingly disposed in the input end of outer tube 11, and sand inlet is equipped with feeder 43
431 and oil inlet 432, mixing part 42 is plugged in the inside of outer tube 11 and is driven by motor 41.Above-mentioned feed system being capable of side
Stirring side adds sand, it can carry out mulling so as to form mulling liquid inside outer tube 11, without large-scale exterior mixing device, section
Cost is saved.
Specifically, feeder 43 can be attached by flange 47 and the flange 14 on outer tube 11, so that charging system
System is sealingly disposed in the input end of outer tube 11；The sand inlet 431 set on feeder 43 is used for into sand, oil inlet 432 be used for into
Oil, consequently facilitating stirring forms mulling liquid, may be provided for the blow valve 433 of emptying on feeder 43；In addition, charging
The input end in portion 43 can be sealed by shaft sealer 45, and can be close to axis by the grade common fasteners of pressure cap 46
Seal apparatus 45 is fixed.Mixing part 42 can be conventional structure, and mixing part 42 can for example include agitating shaft 421 and blade
422, blade 422 is arranged on the port of export of agitating shaft 421.Motor 41 can be connected by mandrel connector 44 with agitating shaft 421, from
And rotated easy to driving agitating shaft 421.
Further, as shown in figure 8, the system of the present invention can also include adjustment portion, adjustment portion includes gland 51 and wears
Compression bar 52 arranged on the middle part of gland 51, gland 51 are located at the port of export of Intranet 22, and compression bar 52 is threaded on gland 51；Specifically
Ground, gland 51 can be fixed on the port of export of Intranet 22 in a usual manner, such as can be carried out by the grade of screw 53 common fasteners
It is fixed；The outlet 511 for being used for fluid outflow is equipped with gland 51.Compression bar 52 is towards can be to gravel layer 23 during input end precession
It is compacted, and by measuring the distance of screw advancement, to compaction's quantification of gravel layer 23.
In addition, as shown in Figure 1, the system of the present invention can also include support system, support system for supporting part into
Row support, can be conventional supporting structure；Support system can for example include two stents 61 being oppositely arranged, input end
Stent 61 can support motor 41, and the stent 61 of the port of export can support the flange 14 of 11 port of export of outer tube, so as to ensure whole
The stability and ease for operation of system.
The gravel layer pressure measurement that the system of the present invention is solved present in existing measuring method is not allowed, sensor is fragile, surveys
After pressure hole easily blocks, glass tube is processed the problems such as intensity decreases, can accurately it be measured using the system of the present invention outside sand-proof pipe
The pressure drop in outside, the pressure drop in the interior outside of sand-proof pipe base tube and the pressure drop of gravel layer diverse location in shell, so as to truly
The blocking process for being prefilled with gravel sand-proof pipe under simulated formation pressure differential, grinds for the blocking of loose sand oil accumulation sand block medium
Study carefully and provide certain technical support.
Embodiment 2
The method that the measurement of the present invention is prefilled with gravel sand control tube voltage drop, using the survey in embodiment 1 without feed system
The system that amount is prefilled with gravel sand control tube voltage drop carries out, and this method comprises the following steps：
After the mixed mulling liquid of exterior mixing device, mulling liquid is set to enter outer tube 11 from the input end of outer tube 11；Into outer
The mulling liquid of pipe 11 subsequently enters sand control portion and flows out, and during mulling liquid stream goes out, is gathered by multiple pressure sensors 31
The pressure value of fluid in each drainage tube 24.
More specifically, before on-test, system is vacuumized by exhaust outlet 111, makes flow-guiding mouth 121 and drainage tube 24
Saturation expires experimental oil；Then, exterior mixed mulling liquid enters outer tube 11 from the input end of outer tube 11, into the mulling of outer tube 11
Liquid is most flowed out through oil outlet afterwards followed by outer net 21, gravel layer 23 and Intranet 22.
During mulling liquid stream goes out, the first drainage tube 241, the second drainage tube are each gathered by pressure sensor 31
242nd, in the 3rd drainage tube 243, the 4th drainage tube 244 fluid pressure value；Wherein, the first drainage tube 241 and the second drainage tube
Pressure value between 242 fluids is the pressure drop in outside in outer net 21, the second drainage tube 242 and 243 fluid of the 3rd drainage tube it
Between pressure value be pressure drop between 23 1 correspondence position of gravel layer, the 3rd drainage tube 243 and 244 fluid of the 4th drainage tube it
Between pressure value be pressure drop between 23 another correspondence position of gravel layer, between 244 fluid of the 4th drainage tube and atmospheric pressure
Pressure value is the pressure drop in outside in Intranet 22.
Embodiment 3
The method that the measurement of the present invention is prefilled with gravel sand control tube voltage drop, using the survey that feed system is carried in embodiment 1
The system that amount is prefilled with gravel sand control tube voltage drop carries out, and this method comprises the following steps：
Sand and oil is set not to enter outer tube 11 by sand inlet 431 and oil inlet 432, using mixing part 42 into outer tube
11 sand and oil is stirred, and forms mulling liquid；Mulling liquid subsequently enters sand control portion and flows out, during mulling liquid stream goes out,
The pressure value of fluid in each drainage tube 24 is gathered by multiple pressure sensors 31.
More specifically, before on-test, system is vacuumized by exhaust outlet 111, makes flow-guiding mouth 121 and drainage tube 24
Saturation expires experimental oil；Then, sand is entered outer tube 11 by sand inlet 431, while oil is entered outer tube by oil inlet 432
11, the sand and oil that enter outer tube 11 are stirred using mixing part 42, form mulling liquid.
Mulling liquid then followed by outer net 21, gravel layer 23 and Intranet 22, is most flowed out through oil outlet afterwards；In mulling liquid stream
During going out, pass through pressure sensor 31 each the first drainage tube 241 of collection, the second drainage tube 242, the 3rd drainage tube 243, the
The pressure value of fluid in four drainage tubes 244；Wherein, the pressure value between 242 fluid of the first drainage tube 241 and the second drainage tube is
For the pressure drop in outside in outer net 21, the pressure value between the second drainage tube 242 and 243 fluid of the 3rd drainage tube is gravel layer 23
Pressure drop between one correspondence position, the pressure value between the 3rd drainage tube 243 and 244 fluid of the 4th drainage tube is gravel layer 23
Pressure drop between another correspondence position, the pressure value between 244 fluid of the 4th drainage tube and atmospheric pressure are outside in Intranet 22
Pressure drop.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution described in foregoing embodiments, either to which part or all technical characteristic into
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of measure the system for being prefilled with gravel sand control tube voltage drop, it is characterised in that including supporting part, sand control portion and detection
Portion,
The supporting part includes the outer tube being coaxially disposed and inner tube, said inner tube are arranged on the inside of the outer tube outlet side,
Seal is equipped between said inner tube input end and the outer tube；
The sand control portion includes the sand control module being coaxially disposed with said inner tube and the drainage module being made of multiple drainage tubes, institute
Stating sand control module includes outer net, Intranet and the gravel layer being arranged between the outer net and Intranet, the outer net and Intranet sealing
It is fixed on the inner wall of said inner tube outlet side, multiple flow-guiding mouths is interval with the inner wall of said inner tube outlet side, it is each
Flow-guiding mouth is connected with the input end of each drainage tube；
The test section includes multiple pressure sensors, and each pressure sensor is arranged on the port of export of each drainage tube.
2. system according to claim 1, it is characterised in that further include feed system, the feed system include motor,
Mixing part and feeder, the feeder are sealingly disposed in the input end of the outer tube, and sand inlet is equipped with the feeder
And oil inlet, the mixing part are plugged in the outer tube and are driven by the motor.
3. system according to claim 1 or 2, it is characterised in that the setting position of multiple flow-guiding mouths includes described
The import end position of outer net, outlet end position, any position of the gravel layer and the input end of the Intranet of the outer net
Position.
4. system according to claim 1 or 2, it is characterised in that further include adjustment portion, the adjustment portion include gland and
The compression bar being arranged in the middle part of the gland, the gland are located at the port of export of the Intranet, and the compression bar is threaded in described
On gland.
5. system according to claim 1 or 2, it is characterised in that the inlet side of said inner tube is that cross sectional shape is trapezoidal
Flare openings, the input end of the big ends of flare openings towards said inner tube.
6. system according to claim 5, it is characterised in that the trapezoidal base angle is 20-30 degree, the trapezoidal height
Spend for 20-40mm.
7. system according to claim 1 or 2, it is characterised in that sieve, the sieve are provided with the flow-guiding mouth
Aperture be 0.5mm.
8. system according to claim 1 or 2, it is characterised in that the outer tube and inner tube are PC transparent pipes, the PC
The compressive resistance of transparent pipe is more than 10MPa.
9. a kind of measure the method for being prefilled with gravel sand control tube voltage drop, it is characterised in that any described using claim 1 to 8
System carry out, the described method includes：
Mulling liquid is set to enter the outer tube from the input end of the outer tube；
Mulling liquid into outer tube subsequently enters the sand control portion and flows out；
During mulling liquid stream goes out, the pressure value of fluid in each drainage tube is gathered by multiple pressure sensors.
10. a kind of measure the method for being prefilled with gravel sand control tube voltage drop, it is characterised in that any described using claim 2 to 8
System carry out, the described method includes：
Sand and oil is set not to enter the outer tube by the sand inlet and oil inlet, using the mixing part to entering outer tube
Sand and oil are stirred, and form mulling liquid；
The mulling liquid subsequently enters the sand control portion and flows out；
During mulling liquid stream goes out, the pressure value of fluid in each drainage tube is gathered by multiple pressure sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711239331.0A CN108020372A (en) | 2017-11-30 | 2017-11-30 | Measure the system and method for being prefilled with gravel sand control tube voltage drop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711239331.0A CN108020372A (en) | 2017-11-30 | 2017-11-30 | Measure the system and method for being prefilled with gravel sand control tube voltage drop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108020372A true CN108020372A (en) | 2018-05-11 |
Family
ID=62077686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711239331.0A Pending CN108020372A (en) | 2017-11-30 | 2017-11-30 | Measure the system and method for being prefilled with gravel sand control tube voltage drop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108020372A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437745A (en) * | 2013-07-31 | 2013-12-11 | 中国海洋石油总公司 | Experimental device for simulating influence of polymer on reservoir sand production and sand control effect and sand filling model |
| US20150197995A1 (en) * | 2014-01-15 | 2015-07-16 | Schlumberger Technology Corporation | Retrievable tubing connector system |
| CN205449698U (en) * | 2016-03-04 | 2016-08-10 | 中国石油大学(北京) | Anti outer crowded intensity experimental apparatus of sand control pipe under evaluation high temperature environment |
| CN106290037A (en) * | 2016-08-30 | 2017-01-04 | 中国石油大学(北京) | A kind of Multi-function sand prevention screen cloth erosive wear resistance evaluating apparatus |
| CN206095847U (en) * | 2016-08-30 | 2017-04-12 | 中国石油大学(北京) | Experimental device for anti erosion degree of evaluation gas well sand control screen cloth |
-
2017
- 2017-11-30 CN CN201711239331.0A patent/CN108020372A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437745A (en) * | 2013-07-31 | 2013-12-11 | 中国海洋石油总公司 | Experimental device for simulating influence of polymer on reservoir sand production and sand control effect and sand filling model |
| US20150197995A1 (en) * | 2014-01-15 | 2015-07-16 | Schlumberger Technology Corporation | Retrievable tubing connector system |
| CN205449698U (en) * | 2016-03-04 | 2016-08-10 | 中国石油大学(北京) | Anti outer crowded intensity experimental apparatus of sand control pipe under evaluation high temperature environment |
| CN106290037A (en) * | 2016-08-30 | 2017-01-04 | 中国石油大学(北京) | A kind of Multi-function sand prevention screen cloth erosive wear resistance evaluating apparatus |
| CN206095847U (en) * | 2016-08-30 | 2017-04-12 | 中国石油大学(北京) | Experimental device for anti erosion degree of evaluation gas well sand control screen cloth |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103485738B (en) | A kind of horizontal well Cutting movement analogue experiment installation and experimental technique | |
| CN107044273B (en) | Sand control pit shaft blocking-de-plugging integration evaluation experimental simulator and method | |
| CN105301200B (en) | Testing apparatus for characteristics of sand production during mining of natural gas hydrate | |
| CN105464606A (en) | Experiment device and method for simulating drilling-production double-work-condition pit shaft sand carrying multi-phase flowing | |
| CN102094641B (en) | Fracturing filling sand prevention model | |
| CN110306972B (en) | Hydrate exploitation sand prevention well completion analysis experimental device and method | |
| CN100342115C (en) | Sieve tube simulating experiment device | |
| CN102720476B (en) | O-shaped well physical simulation experiment device | |
| CN105067464B (en) | Sand-proof pipe erosion rate experimental provision | |
| CN202900193U (en) | Sand prevention precision optimization experimental device for sand prevention layer | |
| CN105067222B (en) | Porous media moves water grouting device and its method | |
| CN103256047A (en) | Method for researching variable mass multiphase flowing regular in horizontal well fracturing completion method | |
| CN107367450A (en) | A kind of expandable screen pipe performance detection experimental provision and evaluation method | |
| CN105156094B (en) | A kind of coal bed gas well mining output coal dust transported simulation experimental rig | |
| CN108204935A (en) | The experimental provision and experimental method of diffusion pressure microcosmic mechanism during characterization slip casting | |
| CN105551362A (en) | Horizontal directional drilling annular rock debris migration integration simulation experiment method and experiment apparatus thereof | |
| CN107831187B (en) | experimental device for particle deposition and migration in porous medium | |
| CN108020372A (en) | Measure the system and method for being prefilled with gravel sand control tube voltage drop | |
| CN206818382U (en) | One kind simulation exploitation gas condensate reservoir separates out oil pipe flowing changing rule experimental provision after condensate | |
| CN102053053A (en) | Sieve tube filtering medium performance testing device | |
| CN210317279U (en) | Hydrate exploitation sand prevention well completion analysis experimental device | |
| CN219061599U (en) | Underground stratum multifunctional sand control performance evaluation device | |
| CN109611089B (en) | Method for testing damage of coal dust precipitation to support cracks after coal bed gas well pressure | |
| CN109594980B (en) | Visual experiment device for simulating dynamic sand blocking law of gravel layer | |
| CN202645533U (en) | Physical simulation experiment device for O-shaped well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180511 |