CN107367450A - A kind of expandable screen pipe performance detection experimental provision and evaluation method - Google Patents
A kind of expandable screen pipe performance detection experimental provision and evaluation method Download PDFInfo
- Publication number
- CN107367450A CN107367450A CN201610312938.6A CN201610312938A CN107367450A CN 107367450 A CN107367450 A CN 107367450A CN 201610312938 A CN201610312938 A CN 201610312938A CN 107367450 A CN107367450 A CN 107367450A
- Authority
- CN
- China
- Prior art keywords
- pressure
- kettle
- pipe
- expandable screen
- screen pipe
- 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.)
- Granted
Links
- 238000011156 evaluation Methods 0.000 title claims abstract description 32
- 238000001514 detection method Methods 0.000 title claims abstract description 24
- 239000004576 sand Substances 0.000 claims abstract description 90
- 239000012530 fluid Substances 0.000 claims abstract description 43
- 238000004088 simulation Methods 0.000 claims abstract description 42
- 238000005406 washing Methods 0.000 claims abstract description 30
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 17
- 238000012545 processing Methods 0.000 claims abstract description 9
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 33
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 238000002474 experimental method Methods 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 230000008961 swelling Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 6
- 230000035699 permeability Effects 0.000 claims description 5
- 238000004458 analytical method Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 238000009529 body temperature measurement Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 230000000977 initiatory effect Effects 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 claims description 2
- 241000237858 Gastropoda Species 0.000 claims 1
- 230000035882 stress Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000036760 body temperature Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000005325 percolation Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000013210 evaluation model Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention provides a kind of expandable screen pipe performance detection experimental provision and evaluation method, belongs to oil, gas and well and carries out sand control completion field.The device includes simulated formation and wellbore system, fluid circulating system, pressure-measuring system, stress measurement system, temperature control system, data acquisition processing system；The simulated formation and wellbore system include insulating box and the kettle being arranged in insulating box, and washing pipe, oil pipe, expandable screen pipe and the simulation borehole wall in kettle；Outlet is provided with autoclave body bottom；Fluid-infusing port and pressure tap are provided with the side wall of the kettle；The fluid circulating system includes preheating device and plunger pump, and the preheating device convection body is preheated, and the fluid after preheating is injected into inside kettle by plunger pump by the fluid-infusing port on kettle；The pressure-measuring system connects with the pressure tap on kettle and outlet, monitoring injection pressure, the outer wall pressure of expandable screen pipe and outlet pressure.
Description
Technical field
The invention belongs to oil, gas and well to carry out sand control completion field, and in particular to a kind of expandable screen pipe performance detection
Experimental provision and evaluation method.
Background technology
Sand production of oil-gas wells severely impacts the normal production of sandstone oil reservoir oil gas water well, and mechanical sand control well-completing process is solution
One of main method of sand problem is decided, mechanical sand control completion mainly includes independent screen casing and gravel pack completion method, species
Various wire-wrapped screen, slotted liner and sand screen etc. are as sand control screen in oil gas water well as the master in above-mentioned completion method
Instrument is wanted to be widely used, its performance detection and evaluation lack unified standard always.
SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL sand control technique is compared with sand controlling result is good, work with the suspension sand screen sand control technique of routine
The advantages that making long lifespan, the horizontal well of external sand production petroleum reservoir mostly use gravel filling sand prevention completion.Gravel filling sand prevention is divided into
Two kinds of open-hole gravel pack sand control and inside casing gravel pack sand control.Although open-hole gravel pack sand control is more economical, due to
Influenceed by the factor such as leakage of borehole wall stability, screen casing property placed in the middle, packing fluid, enforcement difficulty is big, and risk is high.And gravel in sleeve pipe
The key problem in technology of stone filling anti-sand be the carrying of gravel and how to ensure gravel horizontal segment in advance be detained formed sand bridge or
Sand-flood, it is closely knit so as to ensure to make the upside of horizontal segment also to fill.With technological progress both domestic and external and the difficulty of Reservoir Development
Increasingly increase, higher requirement is proposed to completion technique.
At present, the detection means of domestic and international sand control screen performance and method are with the sieve in mechanical screen casing or mechanical screen casing
Net is that object is detected or evaluated as part sand block unit, mainly includes sand block precision, anti-blockage capability and trafficability performance
Etc. evaluation contrast.The performances of the performance for sand control well capacity such as the sand block precision of sand control screen, seepage flow are played to closing weight
The effect wanted, therefore also establish corresponding detection means and evaluation method.With the development of sand control completion technique and new anti-
The research and development of sand sieve pipe, it especially have developed and trigger screen casing external diameter to become big or volumetric expansion by instrument or other means in underground,
So as to realize the new expandable sand control screen pipe of annular pack, and applied in underground.Expandable sand control screen pipe mainly should
For open-hole horizontal well sand control completion, using the technique of independent sieve tube completion technique, obtain gravel pack completion annular pack and prevent
The effect of sand, there is the advantage that technique is simple, completion period is short, sand block precision is high, the term of validity is grown, the evaluation of current sand control screen
Experimental provision and method are also inapplicable for such screen casing, it is impossible to the overall performance of expandable screen pipe is evaluated well.
The content of the invention
It is an object of the invention to solve problem present in above-mentioned prior art, there is provided a kind of expandable screen pipe performance inspection
Detection experiment apparatus and evaluation method, the technical requirements of performance characteristics and sand control completion for expandable screen pipe, establishing has heat
Fluid triggers expandable screen pipe expansion filling, the simulated experiment function of expandable screen pipe expansion filling with pressure, and it is detectable can be swollen
Sand block precision, seepage flow performance, the physical analogy evaluation experimental device of performance of anti-blockage after swollen screen casing expansion filling annular space, and lead to
Cross mathematical modeling and carry out quantitative assessment and contrast, foundation is provided for down-hole application.
The present invention is achieved by the following technical solutions：
A kind of expandable screen pipe performance detection experimental provision, including：Simulated formation and wellbore system, fluid circulating system,
Pressure-measuring system, stress measurement system, temperature control system, data acquisition processing system；
The simulated formation and wellbore system include insulating box and the kettle being arranged in insulating box, and installed in kettle
Interior washing pipe, oil pipe, expandable screen pipe and the simulation borehole wall；Outlet is provided with autoclave body bottom；
Fluid-infusing port and pressure tap are provided with the side wall of the kettle；
The fluid circulating system includes preheating device and plunger pump, and the preheating device convection body is preheated, plunger
Fluid after preheating is injected into inside kettle by pump by the fluid-infusing port on kettle；
Pressure tap and outlet on the pressure-measuring system and kettle connect, and pressure, expandable screen pipe are injected in monitoring
Outer wall pressure and outlet pressure；
The temperature measurement system is using the temperature in the temperature and kettle of fluid in temperature sensor monitors preheating device；
The stress measurement system should using the contact of the expandable screen pipe at the contact stress sensor monitoring simulation borehole wall
Power；
The temperature of the temperature control system control insulating box；
The data acquisition processing system collects the injection pressure of pressure-measuring system output, the outer wall pressure of expandable screen pipe
These data are handled, and control fluid circulating system by the contact stress of power, outlet pressure and stress measurement system output
Fluid injection flow.
Cover plate is installed in the bottom of the kettle, the center of cover plate is provided with through hole, the outlet with autoclave body bottom；
The bottom of the washing pipe is fixedly connected on the center of cover plate, and the central through hole of washing pipe connects with the through hole of cover plate；
Two base tubes with washing pipe coaxial line are provided with the cover plate；
The oil pipe is enclosed on the outside of washing pipe, and its bottom is inserted into a base tube on cover plate；
The expandable screen pipe is arranged on the outside of oil pipe；
The simulation borehole wall is enclosed on the outside of expandable screen, and its bottom is inserted into another base tube on cover plate；
The top and bottom of the expandable screen pipe are fixed on the outer wall of oil pipe by locating ring and snap ring；Upper end
Locating ring and snap ring are located at the lower section of oil pipe cover plate；The locating ring and snap ring of lower end are located at the top of base tube；
The upper end of the washing pipe is located in the through hole of oil pipe, and the upper end of oil pipe is provided with oil pipe cover plate, the upper surface of washing pipe
Less than oil pipe cover plate；
For the oil pipe cover plate in the through hole of the simulation borehole wall, the upper end for simulating the borehole wall is provided with upper cover plate；
Upper flange is installed in the upper port of the kettle.
Multigroup seal groove is provided with the bottom of the kettle, O-ring is installed in the seal groove；
Short axle is provided with the bottom of kettle, is provided with hole in the lower surface of cover plate, the short axle of autoclave body bottom is inserted directly into cover plate
Hole in.
Multigroup through hole, a diameter of 10mm~20mm of through hole are provided with the wall of the simulation borehole wall.
Multigroup through hole is provided with the tube wall of the oil pipe.
The pressure-measuring system further comprises pressure drainage tube, out of fluid-infusing port insertion kettle, or in kettle
Pressure draining hole is provided with body, the pressure drainage tube is inserted in kettle by pressure draining hole；
The head of the pressure drainage tube is provided with filtering head.
The expandable screen pipe performance detection experimental provision further comprises angle-adjustable support, the angle-adjustable support
Including fixed mount and worm-and-wheel gear, worm screw one end is arranged on fixed mount, the side connection of the other end and kettle, kettle
Opposite side is flexibly connected with fixed mount, and when rotating turbine, kettle can be in the rotation in the range of 0-90 °, and can be in random angle
Locked on degree.
The method that expandable screen pipe performance evaluation is carried out using above-mentioned expandable screen pipe performance detection experimental provision, including：
Self-expansion annular filling performance evaluation procedure：Hot fluid is injected into kettle from kettle inlet, hot fluid leads to successively
The simulation borehole wall, expandable screen pipe, oil pipe, washing pipe are crossed, is most flowed out afterwards through outlet, it is (i.e. logical by the displacement of fluid into circulatory pool
The heterogeneity for crossing fluid triggers expandable screen tube swelling, so as to fill annular space), trigger the expandable screen pipe expansion filling ring
Sky, self-expansion annular filling performance evaluation is then carried out, is specifically included：After screen casing expansion, simulation well is integrally taken out out of kettle
Expandable screen pipe after wall and its internal expansion, the borehole wall and expandable screen pipe are simulated from the through hole on the wall of the simulation borehole wall
Annular space whether be filled with it is full；Carry out simulated formation sand displacement experiment after filling, if the simulation borehole wall is not swollen by expandable screen pipe
It is filled with, is had on the base that reservoir sand is deposited between the simulation borehole wall and expandable screen pipe after swollen；
Seepage flow performance K evaluation procedure：Outer wall pressure, the outlet pressure of expandable screen pipe are obtained, it is then public according to darcy
Formula calculates permeability：
Wherein, q is flow, monitors to obtain by outlet of plunger pump flowmeter, and u is fluid viscosity, is measured by viscosity；L
It is the thickness after expandable screen tube swelling, A is the aperture area of expandable screen pipe base tube, and Δ P is screen casing inside and outside differential pressure, external pressure
Measured by pressure gauge, interior pressure is outlet pressure, i.e. atmospheric pressure P；
Expansion character evaluation procedure with pressure：The control valve in exit is closed, opens plunger pump, monitors pressure in kettle,
Under a certain pressure heating trigger expandable screen tube swelling, pressure release cooling after open kettle observation expandable screen pipe whether expand and
Difference in thickness before and after expansion；
Performance of anti-blockage evaluation procedure：The borehole wall and the full simulated formation sand of inner wall of kettle annular pack are simulated, is passed through for a long time
Displacement, monitor daily and record pressure change, so as to calculate oozing for the expandable screen pipe after the expansion of each corresponding pressure
The change of saturating rate, as performance of anti-blockage；
Sand block precision evaluation step：Different grain size sand is filled up in annular space between the outer wall and inner wall of kettle of the simulation borehole wall
The simulated formation sand of son, the fluid of injection simulated formation temperature carry out displacement, grain size analysis are done by the sand sample collected in cover plate
Obtain sand block precision.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, device has the hot fluid injected system for triggering polymer swellable function in invention, and fluid media (medium) can use
Water, white oil or acid solution etc., temperature range can be controlled in room temperature~120 DEG C, realize and trigger expandable screen pipe swollen at different temperatures
Swollen filling annular space, and there is insulating box outside kettle, with holding and simulated formation steady temperature, examine expandable heat ageing
Performance.
2nd, stratum and simulation wellbore hole device from outside to inside by high pressure resistant kettle, reservoir sand simulate filling bed, the simulation borehole wall or
Perforated casing, polymer swellable, slot or perforated pipe and washing pipe composition.The wherein simulation borehole wall has irregular shape, can mould
Intend borehole wall necking down, to examine the filling of inflatable filling annular space to enrich performance；Washing pipe structure is added in device, is effectively changed
The flow direction of displacement liquid, make permeable formation of the displacement liquid effectively by expandable screen pipe.
3rd, base and the simulation borehole wall, screen casing base tube all use axis hole plug-in type O-ring sealing structure, by simulate the borehole wall,
The reducer union of screen casing base tube can match the simulation borehole wall and screen casing base tube of different dimensions, realize the different underground wells of simulation
The simulated test of eye size.
4th, experimental provision and method can both simulate the operation acts of expandable screen pipe, can evaluate the work(after its expansion again
Energy and performance.
5th, experimental method Simulated experiment device of three-dimension radial flow sieve tube can truly simulate the percolation law of reservoir fluid
And reservoir slowly shakes out process, with this sand block precision, stopping state and sand production rate to study sand control screen etc.；
6th, evaluation model includes qualitative index and quantitative target, and can qualitative index includes expandable screen pipe realize fluid
Or can temperature trigger expansion and realize band compression swelling；Quantitative target includes fluid and triggers the temperature of expandable screen tube swelling, PH
Value etc., and sand block precision after expandable screen pipe expansion filling, seepage flow performance, performance of anti-blockage, borehole wall support performance etc. are comprehensive
Close index；
7th, device is designed with angle-adjustable support, and worm and gear rotating mechanism is designed with angle-adjustable support, can be achieved
Rotation in the range of 0-90 °, and can be locked in any angle；
8th, system uses computer program control computer data handling system, and temperature, pressure, flow signal are by computer
Obtained with controller communication, computer through data processing, shows these signals on the computer screen, can be according to experimental data
Overall merit is carried out to the overall performance of sand control screen.
Brief description of the drawings
Evaluation experimental model in Fig. 1 the inventive method
The schematic diagram of Fig. 2 experimental provisions of the present invention
The structural representation of simulation kettle in Fig. 3 experimental provisions of the present invention
The structural representation of simulation screen casing experimental prototype in Fig. 4 experimental provisions of the present invention
The structural representation of expandable screen pipe in Fig. 5 experimental provisions of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings：
Apparatus of the present invention utilize flowmeter, pressure by simulating downhole temperature and sand control method, sand control Parameters variation condition
Sensor, sand setting collector and data acquisition processing system, accurately track temperature, pressure, the situation of change of flow；Commented by this
Valency method carries out calculating analysis to experimental data, can intuitively reflect the negotiability of screen casing, anti-blockage capability, sand block precision,
Sand block ability, accurate judge is made to the overall performance of screen casing, further rationally select well application to be provided with for sand control screen
Power foundation.
Experimental provision in the present invention can simulate underground work principle and the action of expandable screen pipe, and detectable inflatable
The front and rear pressure gauge temperature of screen casing expansion crosses the combination of qualitative index and quantitative target, overall merit expandable screen pipe it is comprehensive
Can, and the underground work principle of screen casing is simulated, provide technical support for the field application of expandable screen pipe.
Evaluation experimental model of the present invention is as follows：
Expandable sand control screen pipe Performance Evaluating Indexes include two classes：
(1) qualitative index：The performance that the operation principle and function of such index analog machine evaluation expandable screen pipe are realized, it is main
Performance, expansion character with pressure, the borehole wall support mechanical property to be expanded including temperature or fluid initiation, and such screen casing are only
Characteristic energy.
(2) quantitative target：Such index is mainly to evaluate seepage flow performance, sand block performance, the performance of anti-blockage evaluation of screen casing
Method.
Combined by qualitative index and quantitative target and establish screen casing comprehensive performance evaluation method, the expandable screen pipe of foundation is commented
Valency experimental model is as shown in Figure 1.
As shown in Fig. 2 expandable screen pipe performance detection experimental provision mainly includes following components：Simulated formation and well
Cartridge system, hot fluid circulation displacement system, pressure and stress mornitoring system, temperature control system, data acquisition processing system and
Accessory system.Wherein stratum and pit shaft simulation system by being covered on model ontology, model, analog casing and cover plate, simulation oil pipe and
Cover plate, adjustable sealed base, washing pipe etc. form.
Pressure-measuring system：Monitoring injection pressure, expandable screen outer wall pressure (pressure at the simulation borehole wall), outlet pressure；
Temperature measurement system：Using fluid temperature (F.T.), kettle body temperature in temperature sensor monitors preheating device container
Stress measurement system：Expandable screen contact stress at the simulation borehole wall is monitored using contact stress sensor
Fluid circulating system：Fluid heats in preheating device, is pumped into kettle by injecting valve by plunger pump, successively
By back-up sand layer (expandable screen casing outer wall materials (material expand fills annular space)), the perforate of the simulation borehole wall, expandable screen,
Washing pipe upper port, is finally flowed out by outlet valve, then blowback preheating device, is recycled.
It is as shown in Figure 3 to test kettle.
It is as shown in Figure 4 to simulate screen casing experimental prototype.
Specifically, apparatus of the present invention include：Upper flange 1, kettle 11 and the oil pipe cover plate in the inner chamber of kettle 11
2nd, upper cover plate 3, locating ring 4, snap ring 5, expandable screen pipe 6 (as shown in Figure 5), oil pipe 7, sleeve pipe (simulating the borehole wall) 8, washing pipe 9,
Cover plate 10,.
Cover plate 10 is installed with the bottom of kettle 11, the center of cover plate 10 is provided with through hole, the through hole with autoclave body bottom
Connection forms outlet；
Two concentric base tubes are provided with cover plate 10, the bottom of washing pipe 9 is fixedly connected on the center of cover plate 10, washing pipe 9
Central through hole connected with the through hole of cover plate 10；
Oil pipe 7 is enclosed on the outside of washing pipe 9, and its bottom is inserted into a base tube on cover plate；Expandable screen pipe 6 is arranged on
The outside of oil pipe 7；The simulation borehole wall 8 is enclosed on the outside of expandable screen pipe, and its bottom is inserted into a base tube on cover plate；
The top and bottom of expandable screen pipe 6 are fixed on the outer wall of oil pipe 7 by locating ring 4 and snap ring 5；
The upper end of washing pipe 9 is located in the through hole of oil pipe 7, and the upper end of oil pipe 7 is provided with oil pipe cover plate 2, and oil pipe cover plate 2 is located at
In the through hole of sleeve pipe 8, the upper end of sleeve pipe 8 is provided with upper cover plate 3；
Upper flange seals the upper port of kettle；
Fluid-infusing port, pressure tap are provided with the wall of kettle.
Multigroup seal groove is provided with the bottom of kettle, short axle is provided with the bottom of kettle, is provided with the lower surface of cover plate 10
Hole, the short axle of autoclave body bottom are inserted directly into the hole of cover plate 10, O-ring are provided with seal groove, realizes autoclave body bottom and cover plate
Between sealing.
Evaluating apparatus forms and test method is specific as follows：
1) simulation kettle is followed successively by washing pipe (washing pipe may connect on base, by being welded and fixed), screen casing sample from the inside to surface
Machine, the simulation borehole wall (tapping sleeve), kettle outer wall；As shown in figure 4, in autoclave body base, expandable screen test sample can be inserted into
Machine, base are provided with multiple seal grooves, and seal groove top seals (bottom base tube by O-ring and expandable screen model machine bottom base tube
Base is inserted directly into, by shaft hole matching, insertion sealing), and the screen casing base tube of different size can be converted into by reducer union
Tested.
2) fluid is heated by preheating device, can realize that operating temperature is room temperature -120 by changing different fluid medium
DEG C, the fluid after heating is pumped into the inlet of simulation kettle outer wall by plunger pump, fluid-infusing port 8, is evenly distributed on kettle
Body surrounding (entrance also can not can be also adjusted in a plane in a plane, quantity according to actual conditions), passes through
Pressure is injected in pressure gauge monitoring, there is insulating box outside kettle, keeps kettle body temperature.
3) borehole wall (punching sleeve pipe) is simulated, eyelet, eye diameter 10mm~20mm are equipped with wall.
4) device body maximum working pressure (MWP)：6MPa
Calculated according to below equation：
(1) Darcy's equation：
(2) permeability：
(3) sand block performance：Sd
(4) performance of anti-blockage
In formula：Q- flows, K- permeabilities, A- area of passages, △ P- pressure differences, μ-viscosity, L- length, stratum in Vt- devices
Sand cumulative volume, Vs- is by the reservoir sand cumulative volume of screen casing, and R- allowed sand ratio, the initial displacement pressure differences of P0-,During entirely to evaluate
Interior average displacement pressure difference.
Table 1
Model is by lid, model sealing ring, each interface, sand control screen and adjustable angle on model ontology (i.e. kettle), model
Spend the composition such as support.8 oil inlets of model entry design, can feed liquor simultaneously, also can selectable feed liquor, need to only open corresponding
Valve.Pressure drainage tube is designed with model, the position of drainage tube insertion can be adjusted as needed, realizes that pressure drains
The insertion depth of pipe is adjustable, and drainage tube devises 3 sets, can be plugged into outer wall of inner tube, inner ring be aerial, in layer of sand, outer shroud it is aerial (with
Entrance connects), pressure, the aerial pressure of outer shroud in measurable outer wall of inner tube pressure, inner ring aerial certain position pressure, layer of sand, drainage
Tube head is designed with filtering head, can prevent fine sand from flowing into blocked drainage tube drainage pipe.
It is specifically bright, the invention has the characteristics that：
1st, the present invention is detection of a set of simulation sand control screen under different completion modes, sand control parameter and temperature conditionss
Experimental provision and evaluation method, there is the function such as directly perceived, accurate, easy to operate.
2nd, device portal devises 8 oil inlets, can feed liquor simultaneously, also can selectable feed liquor, need to only open corresponding
Valve.
3rd, pressure drainage tube is designed with device, the position of drainage tube insertion can be adjusted as needed, realizes that pressure drains
The insertion depth of pipe is adjustable, can determine pressure fluid inlet, sand body pressure, annular pressure, the outer wall pressure of inner tube.Drain tube head
Portion is designed with filtering head, can prevent fine sand from flowing into blocked drainage tube drainage pipe.For example, pressure drainage tube can be used with gear
The stainless steel tube of sand head, it can be inserted into by the fuel feed hole or other opening of kettle inside kettle, monitor pressure change.
4th, built-in washing pipe can really simulate the percolation law of reservoir fluid and reservoir slowly shakes out process, be ground with this
Study carefully stopping state and sand production rate of sand control screen etc..
5th, the sand control screen and convenient disassembly of the supporting different dimensions of adjustable sealed base energy；Meanwhile the base
It is a sand setting collector, the sand that can't stop can pass through expansion ethmoid canal,posterior into being settled between base tube and washing pipe, can be the bottom of at
Seat is collected, and can thus be measured sand production rate and be carried out sand block precision analysis.
6th, device has the function of constant temperature.
7th, system uses computer program control computer data handling system, and temperature, pressure, flow signal are by computer
Obtained with controller communication, computer through data processing, shows these signals on the computer screen, can be according to experimental data
Overall merit is carried out to the overall performance of sand control screen.
The present invention is directed to the performance characteristics of expandable screen pipe, establishes with temperature simulation, sand block accuracy test, seepage flow
It can test, the physical analogy evaluation experimental device of borehole wall radial support power test, and establish evaluation method, can be swollen with realization pair
Self-expanding, the detection and evaluation of sand block precision, mechanical property of swollen screen casing, provide foundation for down-hole application, are also artificial borehole wall
Research and development and field application provide powerful guarantee.
Above-mentioned technical proposal is one embodiment of the present invention, for those skilled in the art, at this
On the basis of disclosure of the invention application process and principle, it is easy to make various types of improvement or deformation, be not limited solely to this
Invent the method described by above-mentioned embodiment, therefore previously described mode is simply preferable, and and without limitation
The meaning of property.
Claims (8)
- A kind of 1. expandable screen pipe performance detection experimental provision, it is characterised in that：The expandable screen pipe performance detection experiment dress Put including：Simulated formation and wellbore system, fluid circulating system, pressure-measuring system, stress measurement system, temperature control system System, data acquisition processing system；The simulated formation and wellbore system include insulating box and the kettle being arranged in insulating box, and in kettle Washing pipe, oil pipe, expandable screen pipe and the simulation borehole wall；Outlet is provided with autoclave body bottom；Fluid-infusing port and pressure tap are provided with the side wall of the kettle；The fluid circulating system includes preheating device and plunger pump, and the preheating device convection body is preheated, and plunger pump will Fluid after preheating is injected into inside kettle by the fluid-infusing port on kettle；The pressure-measuring system connects with the pressure tap on kettle and outlet, monitoring injection pressure, the outer wall of expandable screen pipe Pressure and outlet pressure；The temperature measurement system is using the temperature in the temperature and kettle of fluid in temperature sensor monitors preheating device；The stress measurement system simulates the contact stress of the expandable screen pipe at the borehole wall using contact stress sensor monitoring；The temperature of the temperature control system control insulating box；The data acquisition processing system collect the injection pressure of pressure-measuring system output, the outer wall pressure of expandable screen pipe, These data are handled, and control fluid circulating system by outlet pressure and the contact stress of stress measurement system output Fluid injects flow.
- 2. expandable screen pipe performance detection experimental provision according to claim 1, it is characterised in that：At the bottom of the kettle Portion is provided with cover plate, and the center of cover plate is provided with through hole, the outlet with autoclave body bottom；The bottom of the washing pipe is fixedly connected on the center of cover plate, and the central through hole of washing pipe connects with the through hole of cover plate；Two base tubes with washing pipe coaxial line are provided with the cover plate；The oil pipe is enclosed on the outside of washing pipe, and its bottom is inserted into a base tube on cover plate；The expandable screen pipe is arranged on the outside of oil pipe；The simulation borehole wall is enclosed on the outside of expandable screen, and its bottom is inserted into another base tube on cover plate；The top and bottom of the expandable screen pipe are fixed on the outer wall of oil pipe by locating ring and snap ring；The positioning of upper end Ring and snap ring are located at the lower section of oil pipe cover plate；The locating ring and snap ring of lower end are located at the top of base tube；The upper end of the washing pipe is located in the through hole of oil pipe, and the upper end of oil pipe is provided with oil pipe cover plate, and the upper surface of washing pipe is less than Oil pipe cover plate；For the oil pipe cover plate in the through hole of the simulation borehole wall, the upper end for simulating the borehole wall is provided with upper cover plate；Upper flange is installed in the upper port of the kettle.
- 3. expandable screen pipe performance detection experimental provision according to claim 2, it is characterised in that：At the bottom of the kettle Portion is provided with multigroup seal groove, and O-ring is provided with the seal groove；Short axle is provided with the bottom of kettle, hole is provided with the lower surface of cover plate, the short axle of autoclave body bottom is inserted directly into the hole of cover plate It is interior.
- 4. expandable screen pipe performance detection experimental provision according to claim 3, it is characterised in that：In the simulation borehole wall Wall on be provided with multigroup through hole, a diameter of 10mm~20mm of through hole.
- 5. expandable screen pipe performance detection experimental provision according to claim 4, it is characterised in that：In the pipe of the oil pipe Multigroup through hole is provided with wall.
- 6. expandable screen pipe performance detection experimental provision according to claim 5, it is characterised in that：The pressure measxurement system System further comprises pressure drainage tube, out of fluid-infusing port insertion kettle, or pressure draining hole is provided with kettle, described Pressure drainage tube is inserted in kettle by pressure draining hole；The head of the pressure drainage tube is provided with filtering head.
- 7. expandable screen pipe performance detection experimental provision according to any one of claims 1 to 6, it is characterised in that：It is described can Expandable screen performance detection experimental provision further comprises angle-adjustable support, and the angle-adjustable support includes fixed mount and snail Worm and gear mechanism, worm screw one end are arranged on fixed mount, the side connection of the other end and kettle, the opposite side and fixed mount of kettle It is flexibly connected, when rotating turbine, kettle can be in the rotation in the range of 0-90 °, and can be locked in any angle.
- 8. carry out expandable screen pipe performance using any expandable screen pipe performance detection experimental provision of claim 1 to 7 to comment The method of valency, it is characterised in that：Methods described includes：Self-expansion annular filling performance evaluation procedure：Hot fluid is injected into kettle from kettle inlet, hot fluid passes sequentially through mould Intend the borehole wall, expandable screen pipe, oil pipe, washing pipe, most flowed out afterwards through outlet, into circulatory pool, by the displacement of fluid, described in initiation Expandable screen pipe expansion filling annular space, self-expansion annular filling performance evaluation is then carried out, is specifically included：After screen casing expansion, from The expandable screen pipe after the simulation borehole wall and its internal expansion is integrally taken out in kettle, from the through hole on the wall of the simulation borehole wall Whether the annular space of the simulation borehole wall and expandable screen pipe is filled with full；Carry out simulated formation sand displacement experiment after filling, if simulation well Wall is not filled with after expandable screen tube swelling, has the base that reservoir sand is deposited between the simulation borehole wall and expandable screen pipe On；Seepage flow performance K evaluation procedure：Outer wall pressure, the outlet pressure of expandable screen pipe are obtained, then according to Darcy formula meter Calculate permeability：<mrow> <mi>K</mi> <mo>=</mo> <mfrac> <mrow> <mi>q</mi> <mi>&mu;</mi> <mi>L</mi> </mrow> <mrow> <mi>A</mi> <mi>&Delta;</mi> <mi>P</mi> </mrow> </mfrac> </mrow>Wherein, q is flow, monitors to obtain by outlet of plunger pump flowmeter, and u is fluid viscosity, is measured by viscosity；L is can Thickness after expandable screen expansion, A is the aperture area of expandable screen pipe base tube, and Δ P is screen casing inside and outside differential pressure, and external pressure is by pressing Power measures, and interior pressure is outlet pressure, i.e. atmospheric pressure P；Expansion character evaluation procedure with pressure：The control valve in exit is closed, opens plunger pump, pressure in kettle is monitored, one Heating triggers expandable screen tube swelling under constant-pressure, opens whether kettle observation expandable screen pipe expands and expand after pressure release cooling Front and rear difference in thickness；Performance of anti-blockage evaluation procedure：The full simulated formation sand of the borehole wall and inner wall of kettle annular pack is simulated, by long-time displacement, Monitor daily and record pressure change, so as to calculate the permeability of the expandable screen pipe after the expansion of each corresponding pressure Change, as performance of anti-blockage；Sand block precision evaluation step：Different grain size sand is filled up in annular space between the outer wall and inner wall of kettle of the simulation borehole wall Simulated formation sand, the fluid of injection simulated formation temperature carry out displacement, grain size analysis acquisition are done by the sand sample collected in cover plate Sand block precision.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610312938.6A CN107367450B (en) | 2016-05-12 | 2016-05-12 | Performance detection experimental device and evaluation method for expandable sieve tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610312938.6A CN107367450B (en) | 2016-05-12 | 2016-05-12 | Performance detection experimental device and evaluation method for expandable sieve tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107367450A true CN107367450A (en) | 2017-11-21 |
| CN107367450B CN107367450B (en) | 2020-04-17 |
Family
ID=60303434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610312938.6A Active CN107367450B (en) | 2016-05-12 | 2016-05-12 | Performance detection experimental device and evaluation method for expandable sieve tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107367450B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318398A (en) * | 2018-01-08 | 2018-07-24 | 中国石油天然气股份有限公司 | Heavy crude reservoir high temperature and pressure oil displacement efficiency experimental provision and its experimental method |
| CN108518205A (en) * | 2018-06-05 | 2018-09-11 | 西南石油大学 | A kind of visual Simulation crosses the experimental provision and method of screen casing sand-preventing process |
| CN108918266A (en) * | 2018-07-10 | 2018-11-30 | 常州大学 | A kind of experimental provision that simulation deep water geological disaster influences tube column strength and method |
| CN110618068A (en) * | 2018-06-19 | 2019-12-27 | 中国石油化工股份有限公司 | Self-expansion sand control screen pipe seepage performance experiment device, system and method |
| CN110618162A (en) * | 2018-06-19 | 2019-12-27 | 中国石油化工股份有限公司 | Self-expansion sand control screen pipe expansion performance experimental device and experimental method thereof |
| CN112177570A (en) * | 2019-06-14 | 2021-01-05 | 中国石油化工股份有限公司 | Gravel-packed sand control well extrusion packing form simulation experiment device and method |
| CN113834763A (en) * | 2021-04-19 | 2021-12-24 | 中国海洋石油集团有限公司 | Testing device and method for evaluating secondary sand prevention process in oil field development |
| CN114459652A (en) * | 2021-07-12 | 2022-05-10 | 中海油能源发展股份有限公司 | Test device for evaluating performance of expandable pipe and external sealing module thereof and evaluation method thereof |
| CN114459782A (en) * | 2020-10-22 | 2022-05-10 | 中国石油化工股份有限公司 | Mechanical performance evaluation test device and method for filling sand prevention tool |
| CN114486550A (en) * | 2020-10-27 | 2022-05-13 | 中国石油化工股份有限公司 | Free bulging test method and system for downhole variable-temperature patching pipe |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0813462A (en) * | 1994-06-29 | 1996-01-16 | Nittoc Constr Co Ltd | Drainage boring |
| CN201096769Y (en) * | 2007-09-18 | 2008-08-06 | 中国石油天然气股份有限公司 | Multi-function sand prevention testing device |
| CN101509840A (en) * | 2009-03-13 | 2009-08-19 | 中国海洋石油总公司 | Method for evaluating sand prevention tube performance and special equipment thereof |
| CN201406994Y (en) * | 2009-03-13 | 2010-02-17 | 中国海洋石油总公司 | Device for evaluating performance of sand preventing tube |
| CN201539971U (en) * | 2009-06-26 | 2010-08-04 | 浙江康泉电器有限公司 | Water inlet pipe for increasing water yield of electric water heater |
| CN201795982U (en) * | 2010-09-20 | 2011-04-13 | 中国海洋石油总公司 | Device for evaluating anti-sand performance of sieve tube |
| CN103410483A (en) * | 2013-07-25 | 2013-11-27 | 中国石油天然气股份有限公司 | Evaluation device and method for sand controlling effect of screen pipe of horizontal well |
| US20130327526A1 (en) * | 2011-11-28 | 2013-12-12 | Otkrytoe aktsionernoe obschestvo 'Tatneft" im. V.D.Shashina | Expandable sand screen and method for well casing for thermal oil recovery |
| CN205228802U (en) * | 2015-12-08 | 2016-05-11 | 中国石油天然气股份有限公司 | Screen pipe sand control test device |
-
2016
- 2016-05-12 CN CN201610312938.6A patent/CN107367450B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0813462A (en) * | 1994-06-29 | 1996-01-16 | Nittoc Constr Co Ltd | Drainage boring |
| CN201096769Y (en) * | 2007-09-18 | 2008-08-06 | 中国石油天然气股份有限公司 | Multi-function sand prevention testing device |
| CN101509840A (en) * | 2009-03-13 | 2009-08-19 | 中国海洋石油总公司 | Method for evaluating sand prevention tube performance and special equipment thereof |
| CN201406994Y (en) * | 2009-03-13 | 2010-02-17 | 中国海洋石油总公司 | Device for evaluating performance of sand preventing tube |
| CN201539971U (en) * | 2009-06-26 | 2010-08-04 | 浙江康泉电器有限公司 | Water inlet pipe for increasing water yield of electric water heater |
| CN201795982U (en) * | 2010-09-20 | 2011-04-13 | 中国海洋石油总公司 | Device for evaluating anti-sand performance of sieve tube |
| US20130327526A1 (en) * | 2011-11-28 | 2013-12-12 | Otkrytoe aktsionernoe obschestvo 'Tatneft" im. V.D.Shashina | Expandable sand screen and method for well casing for thermal oil recovery |
| CN103410483A (en) * | 2013-07-25 | 2013-11-27 | 中国石油天然气股份有限公司 | Evaluation device and method for sand controlling effect of screen pipe of horizontal well |
| CN205228802U (en) * | 2015-12-08 | 2016-05-11 | 中国石油天然气股份有限公司 | Screen pipe sand control test device |
Non-Patent Citations (2)
| Title |
|---|
| 胡博仲等: "《大庆油田机械采油配套技术》", 30 June 1998 * |
| 裴红: "一种超稠油开采管柱的研制", 《科学创新导报》 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318398A (en) * | 2018-01-08 | 2018-07-24 | 中国石油天然气股份有限公司 | Heavy crude reservoir high temperature and pressure oil displacement efficiency experimental provision and its experimental method |
| CN108518205A (en) * | 2018-06-05 | 2018-09-11 | 西南石油大学 | A kind of visual Simulation crosses the experimental provision and method of screen casing sand-preventing process |
| CN110618162B (en) * | 2018-06-19 | 2022-01-18 | 中国石油化工股份有限公司 | Self-expansion sand control screen pipe expansion performance experimental device and experimental method thereof |
| CN110618068A (en) * | 2018-06-19 | 2019-12-27 | 中国石油化工股份有限公司 | Self-expansion sand control screen pipe seepage performance experiment device, system and method |
| CN110618162A (en) * | 2018-06-19 | 2019-12-27 | 中国石油化工股份有限公司 | Self-expansion sand control screen pipe expansion performance experimental device and experimental method thereof |
| CN108918266A (en) * | 2018-07-10 | 2018-11-30 | 常州大学 | A kind of experimental provision that simulation deep water geological disaster influences tube column strength and method |
| CN108918266B (en) * | 2018-07-10 | 2020-09-08 | 常州大学 | Experimental device and method for simulating influence of deep water geological disasters on pipe column strength |
| CN112177570A (en) * | 2019-06-14 | 2021-01-05 | 中国石油化工股份有限公司 | Gravel-packed sand control well extrusion packing form simulation experiment device and method |
| CN114459782A (en) * | 2020-10-22 | 2022-05-10 | 中国石油化工股份有限公司 | Mechanical performance evaluation test device and method for filling sand prevention tool |
| CN114486550A (en) * | 2020-10-27 | 2022-05-13 | 中国石油化工股份有限公司 | Free bulging test method and system for downhole variable-temperature patching pipe |
| CN113834763A (en) * | 2021-04-19 | 2021-12-24 | 中国海洋石油集团有限公司 | Testing device and method for evaluating secondary sand prevention process in oil field development |
| CN113834763B (en) * | 2021-04-19 | 2024-01-02 | 中国海洋石油集团有限公司 | Test device and method for evaluating oil field development secondary sand control process |
| CN114459652A (en) * | 2021-07-12 | 2022-05-10 | 中海油能源发展股份有限公司 | Test device for evaluating performance of expandable pipe and external sealing module thereof and evaluation method thereof |
| CN114459652B (en) * | 2021-07-12 | 2024-01-02 | 中海油能源发展股份有限公司 | Test device for evaluating performance of expandable pipe and external sealing module thereof and evaluation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107367450B (en) | 2020-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107367450A (en) | A kind of expandable screen pipe performance detection experimental provision and evaluation method | |
| CN110470585B (en) | Experimental test device and method for shale dynamic imbibition capacity | |
| CN102094641B (en) | Fracturing filling sand prevention model | |
| CN113640473A (en) | Plugging capacity test experimental device and method for drilling and fracturing | |
| CN109236243A (en) | Three-dimensional comprehensive reservoir hydrate sunykatuib analysis system and analysis method | |
| CN109541175B (en) | Device and method for simulating circulation of underground drilling fluid to form mud cakes | |
| CN102562040A (en) | Dynamic evaluation instrument for high-temperature and high-pressure drilling fluid loss | |
| CN209398398U (en) | Three-dimensional comprehensive reservoir hydrate sunykatuib analysis system | |
| CN108387685B (en) | The method and apparatus of the weak consolidated formation drilling fluid stabilizing borehole evaluation of effect of deep water superficial part | |
| CN105804738B (en) | A kind of mud shale wellbore stability and integrality Visual evaluation device | |
| CN105298488A (en) | Diversion capacity testing method under non-continuous filling mode | |
| CN105716958B (en) | Simulate the foundation model experimental rig of artesian head lifting | |
| CN111577236B (en) | Multi-section fracturing seepage simulation device for compact oil reservoir horizontal well | |
| CN107725046A (en) | The apparatus and method of capillary force during a kind of evaluation reservoir water | |
| CN106593416A (en) | Fluid annular pressure build-up experimental device and method | |
| CN109442226A (en) | Simulate the device of liquid hydrocarbon pipe leakage and the method using device measuring and calculating leakage rate | |
| CN113252532B (en) | Simulation device for breakthrough of abnormal high-temperature and high-pressure stratum sand body through seepage barrier | |
| US4233840A (en) | Method for evaluation of the response of different cores to a recovery process and apparatus therefor | |
| CN115949377A (en) | Underground stratum multifunctional sand prevention performance evaluation system and method | |
| CN213039278U (en) | Artificial simulation well wall | |
| CN211347842U (en) | Outlet-end negative-pressure triaxial seepage device capable of changing temperature of mixed gas | |
| CN209640338U (en) | Hydrate physical property translocation device under the conditions of cryogenic high pressure | |
| CN219061599U (en) | Underground stratum multifunctional sand control performance evaluation device | |
| CN110306976A (en) | Inert gas injection manages annular space band compression experiment device and its experimental method | |
| CN205400716U (en) | Oil well of simulated formation fluid temperature (F. T. ) shakes out critical pressure less than experimental apparatus |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |