CN103104254A - Multifunctional oil reservoir simulation experiment device and experiment method thereof - Google Patents
Multifunctional oil reservoir simulation experiment device and experiment method thereof Download PDFInfo
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- CN103104254A CN103104254A CN201310026715XA CN201310026715A CN103104254A CN 103104254 A CN103104254 A CN 103104254A CN 201310026715X A CN201310026715X A CN 201310026715XA CN 201310026715 A CN201310026715 A CN 201310026715A CN 103104254 A CN103104254 A CN 103104254A
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Abstract
The invention discloses a multifunctional oil reservoir simulation experiment device. The device comprises a cubic vessel, a simulation experiment pit-shaft (1), a multi-parameter sensor (2), and cable connectors (3). The cubic vessel comprises a box body (4) and a cover plate (5), wherein a cavity is formed inside the box body (4), a plurality of inserting holes (6) are distributed in a base plate of the box body (4), partition plates (7) are evenly arranged all around each inserting holes (6), connecting holes are formed in the side wall of the box body (4), the pit-shaft (1) of a simulation pit and the wire cable connectors (3) are installed inside different inserting holes, and the multi-parameter sensor (2) is placed inside the cavity. The invention further discloses an experiment method using the device. The device and the system have the advantages of being capable of simulating various pit conditions, even in distribution of pressure in the bottom portion of the box body, also capable of simulating sites where stimulation pressure is distributed unevenly, capable of measuring flow in any small sections inside any pit-shaft, genuine and believable in experiment result, and capable of intuitively observing bottom water rising trends.
Description
Technical field
The present invention relates to the oil development technical field, particularly a kind of multi-functional oil reservoir analogue experiment installation and experimental technique thereof.
Background technology
Find successively a large amount of bottom water reservoirs in the oil-gas field development field in recent years.Bottom water reservoir for exploitation end water energy abundance, after going into operation in the oil field, extraction along with crude oil, strata pressure reduces gradually, the water energy is greater than the oil reservoir energy at the end, simultaneously, difference due to profit viscosity, end water progresses into oil reservoir, and end water in recovery process is in case break through and to rise to pit shaft, and water ratio in oil well just can fast rise, cause crude output to descend rapidly, seriously affected the normal production of oil well, and caused the water treatment expense to increase and the development cost rising, oil reservoir exploitation benefit variation.Bottom water cone (ridge) advances to become to affect the key factor of bottom water reservoir development effectiveness, therefore study reasonable pressure, the reasonable production of bottom water reservoir oil well, oil well bottom water cone (ridge) the precession attitude of monitoring bottom water reservoir, the water breakthrough time of prediction oil well, research water breakthrough rule and press is estimated the water plugging effect that artificial blocking agent forms artificial dividing plate and is just seemed particularly important and necessary in the cone measure.
Because oil reservoir is in earth formation deep, the researcher can not advance process to the bottom water cone (ridge) of actual oil well and intuitively observe, therefore only have by the mode of laboratory experiment bottom water cone (ridge) precession attitude is carried out approximate simulation, making bottom water cone (ridge) advance process implementation artificially reproduces, by physical model, the development process of bottom water reservoir is carried out dynamic analog, can reproduce more truly the seepage flow characteristics of actual oil reservoir or oil well, provide important evidence for formulating bottom water reservoir development strategy, different development phases counter-measure and steady oil control water scheme.
Though domestic and international phenomenon to straight well water cone, single Zhi Shuiping well water ridge has a large amount of research at present, but to other comparatively complicated structure well, as the physical analogy of the branch horizontal well of any spread of three dimensions rare report also, the complex mechanism well capacity of prediction bottom water reservoir various forms, study its water cone, water ridge, critical output, critical pressure differential, water breakthrough time, and formulate according to this rational working system, the artificial dividing plate water plugging effect of prior appraisal, such oil reservoir of Efficient Development has prior meaning.
The people such as Aulie have done the two-dimensional analog experiment of profit two-phase, the visual dynamic process that shows end liter waterborne in 1993.Comply with one's wishes and introduced the 3 D High Temperature High Pressure Horizontal Well Physical Modelling System that is used for research level well withdrawal mechanism and estimates the raising recovery mechanism of horizontal well or other complex structural well in river in 1999.Pei Bailin had introduced comparatively easy horizontal well three-dimensional physical model device in 2003.The people such as king family's Lu had adopted the electro-photographic surveillance technology at research water chi chung in 2007.The two grade of Zhu Yu utilized special bottom water reservoir sandstone micromodel in 2008, and bottom water reservoir later regulation and the negative pressure exploitation of water blockoff have in advance been carried out simulation laboratory test research.
About the physical model test of horizontal well, be broadly divided into three types both at home and abroad: Static Electro simulated test, two-dimentional dynamic analog test, Three Dimensional Dynamic Simulation test.At the bottom of bottom water reservoir, the physical Model Study of liter waterborne is limited to the dynamic physical simulation of two and three dimensions.
The production capacity of water power principle of similitude Simulated Water horizontal well, branch horizontal well is mainly passed through in the Static Electro simulated experiment.Can't simulate bottom water reservoir water drive oil oil-water interfaces dynamic changing process.
The two dimension dynamic analog adopts visual organic glass dull and stereotyped more, fills simulation medium between the less parallel flat of two relative distance.For ease of visual observation, two parallel-plate spacings are difficult for excessive, and filled media also will satisfy the printing opacity requirement.The glass plate pressure-bearing is limited on the one hand; Filled media type and cementing being restricted on the other hand, difficult and reservoir porous actual attribute coupling; And there are gap in two-dimensional analog and all kinds of producing well in three-dimensional actual production.
Three-Dimensional Dynamic physical analogy model volume is large, and medium adopts sandpack column more, builds the different rhythms of reservoir, non-homogeneity etc. and represents that the sandpack column of reservoir change carries out horizontal well, and the notes of horizontal well under interior various flooding patterns are adopted physical analogy.The two-dimensional device that the three-dimensional simulation device is simpler and cruder, in the simulated environment diversity, and the collection accuracy of the data such as pressure, temperature, flow all makes moderate progress.There are difference in such device model back-up sand medium and actual oil reservoir, only can accomplish the analyses such as the extraction fluid is moisture, physical property to the dynamic monitoring of simulation well profit, to the monitoring shortage effective means of three-dimensional saturation field.
Application number is 200910019350.1, application publication number is CN101696626A, at on 04 21st, 2010 Shen Qing Publication day, name was called the patent of multifunctional physical model test device of horizontal well, mainly in using, the monitoring of the three-dimensional saturation ratio of profit is lacked effective means in the oil exploitation anti-sand process technology.
Application number is 201210071679.4, application publication number is CN102587894A, at on 07 18th, 2012 Shen Qing Publication day, the patent that name is called horizontal well seepage experimental device relate to a kind of simulation and research level well on every side the stratum to the horizontal well seepage experimental device of horizontal wellbore seepage flow.Be used for analyzing varying level well completion mode to the impact of stratum filtration around horizontal well.This device still only belongs to the device of transparent visual, its main range of observation only limits to the seepage flow access panel, filled media is subject to light transmission and strictly limits, it is mainly used in simulating under different completion mode, flow event around the demonstration pit shaft can not form in strict accordance with liter waterborne at the bottom of similarity criterion research level well, branch horizontal well critical (startup) condition of water cone (ridge).
Mostly existing reservoir simulator is for the specific mining type of certain class or for the specific technical barrier of certain class and the independent analogue means of the single hole condition of adaptation of design, narrow application range, and versatility is poor, and the data of acquisition are less.Consider the complexity of concrete reservoir condition, therefore be difficult to find a kind of physical model can be applicable to all oil reservoir situations and the production feature of oil well.Common processing method is for a certain concrete oil reservoir situation, by similarity criterion, sets up corresponding ratio and dwindles model and carry out physical simulation experiment research.The bottom water coning analogue experiment installation is mainly flat plate model at present, and this type of physical model is made of the poly (methyl methacrylate) plate of two same sizes, and it is only a two dimensional model, and there are larger difference in back-up sand medium and reservoir rocks porous media.
At present can be with the high filled media of reservoir property degree of conformity for how setting up in simulation process, how to simulate specific reservoir boundary condition, how to monitor threedimensional model under horizontal well, branch horizontal well production function, end water form model in water ridge process everywhere moisture dynamic changing process, how to reduce pressure, the checkout gear such as moisture the interference of simulation model itself and the wire that how to keep these monitoring devices problem such as sealing in simulation model be badly in need of solution.Design is the experimental facilities of Reality simulation stratum oil well water breakthrough rule under the different operating system better, reduces experimental error as far as possible, becomes very crucial problem.
Investigate through document, according to the accurate side of strict physical similarity and can more truly reflecting in the filling physical model of porous media attribute, reach the three-dimensional saturation ratio of dynamic monitoring, pressure distribution, thinking, product, process design method that the three-dimensional physical simulation device of the complex structural wells such as Simulated Water horizontal well, branch horizontal well is relevant have no report.
Summary of the invention
The object of the invention is to overcome the shortcoming of prior art, provide a kind of and can simulate multiple hole condition, provide many kinds of parameters according to, can record in any pit shaft arbitrarily flow, the experimental result of segment more genuine and believable, observe multi-functional oil reservoir analogue experiment installation and experimental technique thereof more intuitively.
purpose of the present invention is achieved through the following technical solutions: a kind of multi-functional oil reservoir analogue experiment installation, it comprises the cube container, the simulated experiment pit shaft, multi-parameter sensor and cable connector, described cube container comprises casing and is arranged at the cover plate at casing top, be provided with cavity volume in casing, be evenly equipped with the access hole of a plurality of connection cavity volumes and casing space outerpace on the base plate of casing, each surrounding that accesses the hole is provided with around the dividing plate of access Kong Yizhou, dividing plate is fixedly connected with base plate, dividing plate and base plate form the cavity of upper shed, be provided with the sieve plate that be arranged in parallel with base plate in cavity, sieve plate is divided into two parts in up and down with cavity, be provided with the connecting hole that is communicated with cavity volume and casing space outerpace on the sidewall of casing, access hole and connecting hole are internal thread hole, at least be provided with two on the sidewall of casing and access the hole, simulation well pit shaft and cable connector all are installed in different accesses holes, multi-parameter sensor is arranged in cavity volume inside, and multi-parameter sensor is connected with cable connector by wire.
Described dividing plate comprises mutual vertically disposed diaphragm and midfeather, be provided with the uniform midfeather of the uniform diaphragm in a plurality of intervals and a plurality of interval on base plate, the cavity that diaphragm, midfeather and base plate form is cubic type, accesses the hole and is positioned on the base plate of cavity.
The surrounding of described casing outside also is provided with heater, and described heater is hot water pipeline or heating wire
Described access is equipped with the pressure source extension tube attached in the hole, and the pressure source extension tube attached is three-port structure, and an end of pressure source extension tube attached is threaded with access port, and the other two ends of pressure source extension tube attached all are connected with a ball valve.
The terminal part that described simulated experiment pit shaft is positioned at cavity volume inside is arranged horizontally, and is furnished with a plurality of through holes on the tube wall of terminal part.
Also be provided with branched pipe on described terminal part, branched pipe also is arranged horizontally, and also is furnished with a plurality of through holes on the tube wall of branched pipe.
Described simulated experiment pit shaft is positioned at the terminal part of cavity volume inside for vertically arranging.
also be provided with segment flow measurement instrument in described simulated experiment pit shaft, described segment flow measurement instrument comprises central tube, shunt head and outer endless tube, the end of central tube is provided with circular baffle plate, shunt head is the cylinder cast, shunt head is set in outside the central tube at baffle plate rear, the excircle of the end of outer endless tube is provided with annular retaining ring, the outer shroud pipe box is loaded on outside the central tube at shunt head rear, shunt head is provided with circular fin A near an end of baffle plate, shunt head is provided with circular fin B near an end of back-up ring, be provided with sealing ring A between circular fin A and baffle plate, be provided with sealing ring B between circular fin B and back-up ring, on the baffle plate position corresponding with the end face of shunt head along circumferentially being evenly equipped with axially extending bore A, on shunt head, the edge circumferentially is evenly equipped with axially extending bore B, on back-up ring, the edge circumferentially is evenly equipped with axially extending bore C, the middle part of shunt head is distributary division, distributary division is along circumferentially being evenly equipped with radial direction through hole A, radial direction through hole A is not communicated with mutually with axially extending bore B, and be provided with vertically many row's radial direction through hole A on distributary division, central tube corresponding with distributary division the position on along circumferentially being evenly equipped with radial direction through hole B, and central tube corresponding with distributary division the position on also be provided with vertically many row's radial direction through hole B, the left side of distributary division, be provided with sealing ring C between shunt head and central tube, the right side of distributary division, be provided with sealing ring D between shunt head and central tube, be provided with sealing ring E between outer endless tube and central tube.
Adopt a kind of experimental technique of multi-functional oil reservoir analogue experiment installation, it comprises the following steps:
The cover plate of S1, unlatching casing carries out gluing with inwall, simulated experiment pit shaft outer wall, multi-parameter sensor surface and the conductive line surfaces of wall box and capping sand is processed;
The on-the-spot cementing porous media artificial core of S2, layering back-up sand or layering;
S3, in the on-the-spot cementing porous media artificial core of layering back-up sand or layering, preset the multi-parameter sensor of having processed in step S1 in minute aspect;
S4, in the on-the-spot cementing porous media artificial core of layering back-up sand or layering, arrange that casing programme or well pattern form;
S5, cover testing fixture overall tightness after cover plate;
S6, relevant treatment is carried out in back-up sand or cementing porous media artificial core, described relevant treatment is that saturated oils is processed or saturation water is processed;
S7, carry out the simulation of oil reservoir, and utilize segment flow measurement instrument to extract certain section fluid parameter in well.
When needs carried out whole temperature control, the heater by the casing surrounding heated, is incubated processing to casing.
The present invention has the following advantages:
The present invention can simulate multiple hole condition, especially be fit to the oil reservoir system of simulation bottom water coning, because the bottom is provided with dividing plate, be provided with independently inlet in each chamber, dividing plate side, can make the more even of bottom half pressure distribution, occasion that also can the simulated pressure non-uniform Distribution.
Can record by multi-parameter sensor temperature, pressure and the resistivity of array point position in whole analog unit in simulation process, thereby provide the parameter foundation for analyzing oil-water interfaces.
Segment flow measurement instrument of the present invention can record the flow of any segment in any pit shaft, provides the parameter foundation thereby simulate for more deep research digital reservoir.
The scene that the present invention can simulate comprises: the multiple hole conditions such as bottom water reservoir straight well water cone, horizontal well water ridge, branch's well water ridge and water prod cast are intended, water injection of horizontal well exploitation simulation, horizontal well steam flooding exploitation simulation, the simulation of straight well waterflooding extraction, straight well steam flooding exploitation simulation.
The present invention can carry out experimental study more accurately to the impact of horizontal wellbore pressure drop and the rising rule of end water, and experimental result is more genuine and believable, can observe more intuitively end liter waterborne dynamic, and the exploitation of bottom water reservoir is had great importance.
Description of drawings
Fig. 1 is the structural representation of Simulated Water horizontal well of the present invention
Fig. 2 is inlet and dividing plate installation site schematic diagram on box bottom of the present invention
Fig. 3 is sieve plate installing structure schematic diagram of the present invention
Fig. 4 is multi-parameter sensor mounting structure schematic diagram of the present invention
Fig. 5 is the structural representation of dummy level Multilateral Wells of the present invention
Fig. 6 is the structural representation of Simulated Water horizontal well waterflooding extraction of the present invention
Fig. 7 is the structural representation of Simulated Water horizontal well steam flood oil of the present invention exploitation
Fig. 8 is the structural representation that the present invention simulates the straight well waterflooding extraction
Fig. 9 is the structural representation that the present invention simulates the exploitation of straight well steam flooding
Figure 10 is the structural representation of segment flow measurement instrument of the present invention
Figure 11 Figure 10 is along the sectional view in A-A cross section
Figure 12 stretches into the structural representation of simulated experiment pit shaft inside when being segment flow measurement instrument use of the present invention
Figure 13 is the structural representation under segment flow measurement tool work state of the present invention
in figure, 1-simulated experiment pit shaft, the 2-multi-parameter sensor, the 3-cable connector, the 4-casing, the 5-cover plate, 6-accesses the hole, the 7-dividing plate, the 8-sieve plate, the 9-branched pipe, 10-simulation oil well pit shaft, 11-simulation water injection well pit shaft, 12-simulation steamed well pit shaft, 13-pressure source extension tube attached, the 14-ball valve, the 15-central tube, the 16-shunt head, the outer endless tube of 17-, the 18-baffle plate, the 19-back-up ring, 20-circular fin A, 21-circular fin B, 22-sealing ring A, 23-sealing ring B, 24-axially extending bore A, 25-axially extending bore B, 26-axially extending bore C, 27-radial direction through hole A, 28-radial direction through hole B, 29-sealing ring C, 30-sealing ring D, 31-sealing ring E.
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing, and protection scope of the present invention is not limited to the following stated:
as shown in Figure 1, a kind of multi-functional oil reservoir analogue experiment installation, it comprises the cube container, simulated experiment pit shaft 1, multi-parameter sensor 2 and cable connector 3, described cube container comprises casing 4 and is arranged at the cover plate 5 at casing 4 tops, be provided with cavity volume in casing 4, as shown in Figure 2, be evenly equipped with the access hole 6 of a plurality of connection cavity volumes and casing 4 space outerpaces on the base plate of casing 4, each surrounding that accesses hole 6 is provided with around the dividing plate 7 in access 6 one weeks of hole, dividing plate 7 is fixedly connected with base plate, form the cavity of upper shed as figure dividing plate 7 and base plate, be provided with the sieve plate 8 that be arranged in parallel with base plate in cavity, sieve plate 8 is divided into two parts in up and down with cavity, be provided with the connecting hole that is communicated with cavity volume and casing 4 space outerpaces on the sidewall of casing 4, access hole 6 is internal thread hole with connecting hole, at least be provided with two on the sidewall of casing 4 and access hole 6, simulation well pit shaft and cable connector 3 all are installed in different accesses hole 6, as shown in Figure 4, multi-parameter sensor 2 is arranged in cavity volume inside, multi-parameter sensor 2 is connected with cable connector 3 by wire, cable connector 3 is electrically connected to the external signal receiving system, multi-parameter sensor 2 is gaging pressure simultaneously, resistivity and temperature, cable connector 3 is resistant to elevated temperatures ceramic post sintering stitch joint.
As shown in Figure 1 and Figure 2, described dividing plate 7 comprises mutual vertically disposed diaphragm 7 and midfeather 7, be provided with the uniform midfeather 7 of the uniform diaphragm 7 in a plurality of intervals and a plurality of interval on base plate, the cavity that diaphragm 7, midfeather 7 and base plate form is cubic type, accesses hole 6 and is positioned on the base plate of cavity.
As shown in Figure 5, described dividing plate 7 is connected with base plate by bolt or welding, and the side plate of casing 4, base plate and 5 of the cover plates mode that is connected can be welded also and can be fixed by bolt, and excellent sealing;
Described simulated experiment pit shaft 1 can be made by steel pipe, can the analogue perforation completion, and sieve tube completion also can be made by steel pipe and other materials combination simulation open hole well etc.The screwed hole of steel end and casing 4 side plates is connected.As shown in Figure 1, be the Simulated Water horizontal well, the terminal part that described simulated experiment pit shaft 1 is positioned at cavity volume inside is arranged horizontally, and is furnished with a plurality of through holes on the tube wall of terminal part.As shown in Figure 5, be the dummy level Multilateral Wells, it also is provided with branched pipe 9 on the horizontal well terminal part, and branched pipe 9 also is arranged horizontally, and also is furnished with a plurality of through holes on the tube wall of branched pipe 9.As shown in Figure 6, be Simulated Water horizontal well waterflooding extraction, the difference of itself and Simulated Water horizontal well is to be provided with simulation oil well pit shaft 10 and two simulation water injection well pit shafts 11 that terminal part is arranged horizontally that a terminal part is arranged horizontally on the sidewall of casing 4.As shown in Figure 7, be the exploitation of Simulated Water horizontal well steam flood oil, the difference of itself and Simulated Water horizontal well is to be provided with simulation oil well pit shaft 10 and two simulation steamed well pit shafts 12 that terminal part is arranged horizontally that a terminal part is arranged horizontally on the sidewall of casing 4.As shown in Figure 8, be simulation straight well waterflooding extraction, described simulated experiment pit shaft 1 is positioned at the terminal part of cavity volume inside for vertically arranging, simulated experiment pit shaft 1 comprises simulation oil well pit shaft 10 and four the terminal parts simulation water injection well pit shafts 11 for vertically arrange of a terminal part for vertically arranging.As shown in Figure 9, be the exploitation of simulation straight well steam flooding, described simulated experiment pit shaft 1 is positioned at the terminal part of cavity volume inside for vertically arranging, simulated experiment pit shaft 1 comprises simulation oil well pit shaft 10 and four the terminal parts simulation steamed well pit shafts 12 for vertically arrange of a terminal part for vertically arranging
The surrounding of described casing 4 outsides also is provided with heater, and described heater is hot water pipeline or heating wire, and whole casing 4 is carried out temperature control.
In described access hole 6, pressure source extension tube attached 13 is installed, pressure source extension tube attached 13 is three-port structure, and an end of pressure source extension tube attached 13 is threaded with access port, and the other two ends of pressure source extension tube attached 13 all are connected with a ball valve 14.
also be provided with segment flow measurement instrument in described simulated experiment pit shaft 1, as Figure 10, shown in Figure 11, described segment flow measurement instrument comprises central tube 15, shunt head 16 and outer endless tube 17, the end of central tube 15 is provided with circular baffle plate 18, shunt head 16 is the cylinder cast, shunt head 16 is set in outside the central tube 15 at baffle plate 18 rears, the excircle of the end of outer endless tube 17 is provided with annular retaining ring 19, outer endless tube 17 is set in outside the central tube 15 at shunt head 16 rears, shunt head 16 is provided with circular fin A20 near an end of baffle plate 18, shunt head 16 is provided with circular fin B21 near an end of back-up ring 19, be provided with sealing ring A22 between circular fin A20 and baffle plate 18, be provided with sealing ring B23 between circular fin B21 and back-up ring 19, on baffle plate 18 position corresponding with the end face of shunt head 16 along circumferentially being evenly equipped with axially extending bore A24, on shunt head 16, the edge circumferentially is evenly equipped with axially extending bore B25, on back-up ring 19, the edge circumferentially is evenly equipped with axially extending bore C26, the middle part of shunt head 16 is distributary division, distributary division is along circumferentially being evenly equipped with radial direction through hole A27, radial direction through hole A27 is not communicated with mutually with axially extending bore B25, and be provided with vertically many row's radial direction through hole A27 on distributary division, central tube 15 corresponding with distributary division the position on along circumferentially being evenly equipped with radial direction through hole B28, and central tube 15 corresponding with distributary division the position on also be provided with vertically many row's radial direction through hole B28, the left side of distributary division, 15 of shunt head 16 and central tubes are provided with sealing ring C29, the right side of distributary division, 15 of shunt head 16 and central tubes are provided with sealing ring D30, 15 of outer endless tube 17 and central tubes are provided with sealing ring E31.
Be matched in clearance between described baffle plate 18, shunt head 16 and back-up ring 19 and simulation wellbore hole, namely the external diameter of baffle plate 18, shunt head 16 and back-up ring 19 all is slightly less than the internal diameter of simulation wellbore hole; Central tube 15 and the outer endless tube 17 of segment flow measurement instrument are all made by high-intensity flexible pipe, and certain amount of deflection is arranged, and can send into along simulated experiment pit shaft 1 well head.
when needs are surveyed the liquid outlet quantity of certain a bit of simulation well eye of simulated experiment pit shaft 1, only need instrument is placed on this fragment position, as shown in figure 12, then allowing central tube 15 and outer endless tube 17 all move a section to the direction of shunt head 16 moves, sealing ring A22 between extruding center pipe 15 and shunt head 16 and outer endless tube 17 and shunt head 16 and sealing ring B23, as shown in figure 13, separate needing the segment of flow measurement, the fluid of tested segment flows into central tube 15 outflows by the radial direction through hole A27 of shunt head 16 and the radial direction through hole B28 of central tube 15 successively, be positioned at the non-discharge site fluid of segment flow measurement instrument inner end successively by axially extending bore A24, axially extending bore B25, axially extending bore C26 flow between outer endless tube 17 and simulated experiment pit shaft 1 annular space and and flowed out by the annular space between outer endless tube 17 and simulated experiment pit shaft 1 after the non-discharge site fluid of segment flow measurement instrument outer end is converged, can realize detecting the liquid outlet quantity of tested segment by the flow in measuring center pipe 15, thereby reach the purpose of can segmentation surveying segment well flow.
Adopt the experimental technique of described a kind of multi-functional oil reservoir analogue experiment installation, it comprises the following steps:
The cover plate 5 of S1, unlatching casing 4 carries out gluing with inwall, simulated experiment pit shaft 1 outer wall, multi-parameter sensor 2 surfaces and the conductive line surfaces of casing 4 sidewalls and capping sand is processed; Purpose be for pressure after preventing casing 4 punching presses along sidewall, model well or wire direction mineralization pressure gradient, reduce the degree that sidewall, model well or wire produce non-homogeneity;
The on-the-spot cementing porous media artificial core of S2, layering back-up sand or layering;
S3, in the on-the-spot cementing porous media artificial core of layering back-up sand or layering, preset the multi-parameter sensor 2 of pre-treatment by certain arrangement mode in minute aspect;
S4, in the on-the-spot cementing porous media artificial core of layering back-up sand or layering, arrange that by pre-design experimental subjects the casing programme of the multiple completion mode of corresponding casing programme or well pattern form;
S5, cover the rear testing fixture overall tightness of cover plate 5;
S6, relevant treatment is carried out in back-up sand or cementing porous media artificial core, described relevant treatment is that saturated oils is processed or saturation water is processed;
S7, according to the simulation of oil reservoir of being correlated with of different experimental programs, and utilize segment flow measurement instrument to extract certain section fluid parameter in the phase closing well.
When needs carried out whole temperature control, the heater by casing 4 surroundings heated, is incubated processing to casing 4.
Claims (9)
1. multi-functional oil reservoir analogue experiment installation, it is characterized in that: it comprises the cube container, simulated experiment pit shaft (1), multi-parameter sensor (2) and cable connector (3), described cube container comprises casing (4) and is arranged at the cover plate (5) at casing (4) top, casing is provided with cavity volume in (4), be evenly equipped with the access hole (6) of a plurality of connection cavity volumes and casing (4) space outerpace on the base plate of casing (4), the surrounding in each access hole (6) is provided with around the dividing plate (7) in access (6) one weeks of hole, dividing plate (7) is fixedly connected with base plate, dividing plate (7) and base plate form the cavity of upper shed, be provided with the sieve plate (8) that be arranged in parallel with base plate in cavity, sieve plate (8) is divided into two parts in up and down with cavity, be provided with the connecting hole that is communicated with cavity volume and casing (4) space outerpace on the sidewall of casing (4), at least be provided with two on the sidewall of casing (4) and access hole (6), simulation well pit shaft and cable connector (3) all are installed in different access holes (6), multi-parameter sensor (2) is arranged in cavity volume inside, and multi-parameter sensor (2) is connected with cable connector (3) by wire.
2. a kind of multi-functional oil reservoir analogue experiment installation according to claim 1, it is characterized in that: described dividing plate (7) comprises mutual vertically disposed diaphragm (7) and midfeather (7), be provided with the uniform midfeathers of the uniform diaphragms in a plurality of intervals (7) and a plurality of interval (7) on base plate, the cavity that diaphragm (7), midfeather (7) and base plate form is cubic type, and access hole (6) is positioned on the base plate of cavity.
3. a kind of multi-functional oil reservoir analogue experiment installation according to claim 1 is characterized in that: the outside surrounding of described casing (4) also is provided with heater, and described heater is hot water pipeline or heating wire
A kind of multi-functional oil reservoir analogue experiment installation according to claim 1, it is characterized in that: pressure source extension tube attached (13) is installed in described access hole (6), pressure source extension tube attached (13) is three-port structure, one end of pressure source extension tube attached (13) is threaded with access port, and the other two ends of pressure source extension tube attached (13) all are connected with a ball valve (14).
4. a kind of multi-functional oil reservoir analogue experiment installation according to claim 1 is characterized in that: the terminal part that described simulated experiment pit shaft (1) is positioned at cavity volume inside is arranged horizontally, and is furnished with a plurality of through holes on the tube wall of terminal part.
5. a kind of multi-functional oil reservoir analogue experiment installation according to claim 5, it is characterized in that: also be provided with branched pipe (9) on described terminal part, branched pipe (9) also is arranged horizontally, and also is furnished with a plurality of through holes on the tube wall of branched pipe (9).
6. a kind of multi-functional oil reservoir analogue experiment installation according to claim 1 is characterized in that: described simulated experiment pit shaft (1) is positioned at the terminal part of cavity volume inside for vertically arranging.
7. a kind of multi-functional oil reservoir analogue experiment installation according to claim 1, it is characterized in that: also be provided with segment flow measurement instrument in described simulated experiment pit shaft (1), described segment flow measurement instrument comprises central tube (15), shunt head (16) and outer endless tube (17), the end of central tube (15) is provided with circular baffle plate (18), shunt head (16) is the cylinder cast, shunt head (16) is set in outside the central tube (15) at baffle plate (18) rear, the excircle of the end of outer endless tube (17) is provided with annular retaining ring (19), outer endless tube (17) is set in outside the central tube (15) at shunt head (16) rear, shunt head (16) is provided with circular fin A(20 near an end of baffle plate (18)), shunt head (16) is provided with circular fin B(21 near an end of back-up ring (19)), circular fin A(20) and between baffle plate (18) be provided with sealing ring A(22), circular fin B(21) and between back-up ring (19) be provided with sealing ring B(23), on baffle plate (18) position corresponding with the end face of shunt head (16) along circumferentially being evenly equipped with axially extending bore A(24), shunt head (16) is upper along circumferentially being evenly equipped with axially extending bore B(25), back-up ring (19) is upper along circumferentially being evenly equipped with axially extending bore C(26), the middle part of shunt head (16) is distributary division, distributary division is along circumferentially being evenly equipped with radial direction through hole A(27), radial direction through hole A(27) with axially extending bore B(25) be not communicated with mutually, and be provided with vertically many row's radial direction through hole A(27 on distributary division), central tube (15) corresponding with distributary division the position on along circumferentially being evenly equipped with radial direction through hole B(28), and central tube (15) corresponding with distributary division the position on also be provided with vertically many row's radial direction through hole B(28), the left side of distributary division, be provided with sealing ring C(29 between shunt head (16) and central tube (15)), the right side of distributary division, be provided with sealing ring D(30 between shunt head (16) and central tube (15)), be provided with sealing ring E(31 between outer endless tube (17) and central tube (15)).
8. adopt the experimental technique of a kind of multi-functional oil reservoir analogue experiment installation as claimed in claim 1, it is characterized in that: it comprises the following steps:
The cover plate (5) of S1, unlatching casing (4) carries out gluing and the processing of capping sand with inwall, simulated experiment pit shaft (1) outer wall, multi-parameter sensor (2) surface and the conductive line surfaces of casing (4) sidewall;
The on-the-spot cementing porous media artificial core of S2, layering back-up sand or layering;
S3, in the on-the-spot cementing porous media artificial core of layering back-up sand or layering, preset the multi-parameter sensor (2) of having processed in step S1 in minute aspect;
S4, in the on-the-spot cementing porous media artificial core of layering back-up sand or layering, arrange that casing programme or well pattern form;
S5, cover testing fixture overall tightness after cover plate (5);
S6, relevant treatment is carried out in back-up sand or cementing porous media artificial core, described relevant treatment is that saturated oils is processed or saturation water is processed;
S7, carry out the simulation of oil reservoir, and utilize segment flow measurement instrument to extract certain section fluid parameter in well.
9. the experimental technique of a kind of multi-functional oil reservoir analogue experiment installation according to claim 9 is characterized in that: when needs carried out whole temperature control, the heater by casing (4) surrounding heated, is incubated processing to casing (4).
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