CN115011321A - Preparation device and method of shale oil reservoir imbibition nano oil displacement emulsion - Google Patents
Preparation device and method of shale oil reservoir imbibition nano oil displacement emulsion Download PDFInfo
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/584—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants
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- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/588—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific polymers
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Abstract
The invention relates to a device and a method for preparing a shale oil reservoir imbibition nano oil displacement emulsion, wherein the device comprises a fluid raw material input tank, a stirring tank and a pushing mechanism, wherein the fluid raw material input tank is used for inputting a fluid raw material into the stirring tank; the device comprises a stirring tank, a fluid raw material barrel, a sampling pipe, a stirring mechanism and a control device, wherein the stirring tank is used for collecting and stirring all raw materials; and the central control module is used for adjusting the pushing speed of the pushing mechanism according to the detection result. The sample to be detected in the stirring tank is detected to obtain a detection result, and the amount of the fluid raw material pushed into the stirring tank is adjusted according to the detection result, so that the comprehensive adjustment of the uniformity and the bubble amount of the oil displacement emulsion is realized, and the preparation efficiency of the oil displacement emulsion is improved.
Description
Technical Field
The invention relates to the technical field of oilfield development, in particular to a device and a method for preparing a shale oil reservoir imbibition nano oil displacement emulsion.
Background
The water content increase and yield decrease of an oil well caused by reservoir heterogeneity are main factors influencing the efficient development of an oil reservoir, and the heterogeneity of a stratum needs to be regulated and controlled firstly to improve the water-flooding development effect of the oil reservoir in the middle and later periods. In various current technological measures, polymer injection, a polymer-based binary/ternary composite oil displacement system, gel, polymer microspheres and the like are important technical means for realizing reservoir regulation and control of an oil reservoir.
Patent document No. CN113480985A discloses a method for preparing micro-nano expanded micelle elastic particle oil displacement emulsion, which comprises the steps of selecting high-temperature high-molecular modified polyacrylamide, a high-temperature phenolic resin cross-linking agent, tannin, an accelerant alcohol amine, nano silicon dioxide and modified saponin, adding water into a stainless steel tank to 90% of the volume, adding the modified polyacrylamide in a throwing manner, starting a stirring device at the same time, and uniformly stirring; adding the high-temperature phenolic resin cross-linking agent, and continuously stirring uniformly; sequentially adding tannin and coagulant alcohol amine and continuously stirring uniformly; heating to 89.96 ℃ after uniform stirring, pumping colloid generated by the chemical reaction into a shearing machine, adjusting the frequency of the shearing machine, and grinding and shearing for multiple times to obtain a nano-micron elastic particle aqueous solution with the required granularity in a mine field; and extracting the nano-micron elastic particle aqueous solution into the stirring tank again, sequentially adding the modified saponin and the nano-silicon dioxide, heating to 60 ℃, and continuously stirring until a uniform semitransparent emulsion system is formed.
However, in the prior art, the aqueous solution of the nano-micron elastic particles is easily adsorbed on the inner wall of the container in the extraction process, so that the raw materials in the stirring tank are insufficient, the concentration of the prepared uniform semitransparent emulsion system is insufficient, and the osmotic expansion performance in the use process is influenced.
Disclosure of Invention
Therefore, the invention provides a preparation device and a preparation method of a shale oil reservoir imbibition nano oil displacement emulsion, which can solve the problem of insufficient raw materials in a stirring tank in the prior art.
In order to achieve the above object, the present invention provides a device for preparing a shale oil reservoir imbibition nanometer oil displacement emulsion, comprising:
the fluid raw material input tank is used for inputting the fluid raw materials into the stirring tank, and a pushing mechanism is arranged in the fluid raw material input tank and used for pushing the fluid raw materials;
the device comprises a stirring tank, a fluid raw material barrel, a sampling pipe and a stirring mechanism, wherein the stirring tank is used for collecting and stirring all raw materials, the fluid raw material barrel is arranged above the side of the stirring tank so as to be convenient for the fluid raw materials to enter the stirring tank, the sampling pipe is arranged on the side wall of the stirring tank and is used for detecting a sample to be detected in the stirring tank to obtain a detection result, and the stirring mechanism is arranged in the stirring tank and is used for stirring the sample to be detected in the stirring tank;
and the central control module is used for adjusting the pushing speed of the pushing mechanism according to the detection result.
Further, the step of adjusting the pushing rate of the pushing mechanism according to the detection result by the central control module includes:
a standard bubble amount N0 and a standard uniformity D0 are preset in the central control module, and the detection result comprises an actual bubble amount N and an actual uniformity D;
determining the difference between the standard uniformity D0 and the actual uniformity D, calculating the gap of the fluid raw material according to the difference between the actual uniformity and the standard uniformity, determining the pushing height of the fluid raw material, and determining the pushing speed according to the difference between the actual bubble amount N and the standard bubble amount N0.
Further, a first height H1, a second height H2 and a third height H3 are arranged in the central control module, and if the difference between the standard uniformity D0 and the actual uniformity D is not more than D0, the first height H1 is used as the pushing height of the fluid raw material;
if the difference between the standard uniformity D0 and the actual uniformity D is larger than D0 and is larger than or equal to 3 multiplied by D0, adopting a second height H2 as the pushing height of the fluid raw material;
if the difference between the standard uniformity D0 and the actual uniformity D is larger than 3 multiplied by D0, the third height H3 is adopted as the pushing height of the fluid raw material;
when any height is selected as the pushing height of the fluid raw material, detecting the actual bubble quantity N, and if the actual bubble quantity N is less than or equal to the standard bubble quantity N0, reducing the pushing speed by adopting a first coefficient k 1;
if the actual bubble amount N is greater than the standard bubble amount N0, the pushing speed is increased by the first coefficient k 1.
Further, a standard pushing speed V0 is preset in the central control module, and when the pushing speed is reduced by a first coefficient k1, the pushing speed after the reduction is set to be V10' = V0 × (1-k 1);
the pushing speed is increased by the first coefficient k1, and the pushing speed after the increase is set to V10 ″ = V0 × (1 + k 1).
Further, a discharge hole is formed in the bottom of the stirring tank, and the oil displacement emulsion in the stirring tank is discharged through the discharge hole after the sample to be detected meets the requirements;
when stirring the raw materials in the agitator tank, be provided with agitating unit in the agitator tank, servo motor is all installed to the both sides on agitator tank top, and servo motor's bottom all installs the agitator paddle, the lateral wall of agitator paddle all is provided with scrapes the wall structure for clear up the pipe wall of agitator tank.
On the other hand, the invention also provides a preparation method of the device for preparing the oil displacement nano emulsion by applying the shale oil reservoir imbibition, which comprises the following steps:
inputting a fluid raw material into a stirring tank, wherein a pushing mechanism is arranged in the fluid raw material input tank and used for pushing the fluid raw material;
collecting and stirring all raw materials, wherein the fluid raw material barrel is arranged above the side of the stirring tank so as to be convenient for the fluid raw materials to enter the stirring tank, a sampling pipe is arranged on the side wall of the stirring tank and is used for detecting a sample to be detected in the stirring tank to obtain a detection result, and a stirring mechanism is arranged in the stirring tank and is used for stirring the sample to be detected in the stirring tank;
and adjusting the pushing speed of the pushing mechanism according to the detection result.
Further, the detection result comprises an actual bubble amount N and an actual uniformity D;
determining the difference between the standard uniformity D0 and the actual uniformity D, calculating the gap of the fluid raw material according to the difference between the actual uniformity and the standard uniformity, determining the pushing height of the fluid raw material, and determining the pushing speed according to the difference between the actual bubble amount N and the standard bubble amount N0.
Further, a first height H1, a second height H2 and a third height H3 are arranged, and if the difference between the standard uniformity D0 and the actual uniformity D is not more than D0, the first height H1 is used as the pushing height of the fluid raw material;
if the difference between the standard uniformity D0 and the actual uniformity D is larger than D0 and is larger than 3 XD 0, adopting a second height H2 as the pushing height of the fluid raw material;
if the difference between the standard uniformity D0 and the actual uniformity D is larger than 3 multiplied by D0, the third height H3 is adopted as the pushing height of the fluid raw material;
when any height is selected as the pushing height of the fluid raw material, detecting the actual bubble quantity N, and if the actual bubble quantity N is less than or equal to the standard bubble quantity N0, reducing the pushing speed by adopting a first coefficient k 1;
if the actual bubble amount N is greater than the standard bubble amount N0, the pushing speed is increased by the first coefficient k 1.
Further, a standard pushing speed V0 is set in advance, and when the pushing speed is reduced by a first coefficient k1, the pushing speed after the reduction is set to V10' = V0 × (1-k 1);
the pushing speed is increased by a first coefficient k1, and the pushing speed after the increase is set to V10 ″ = V0 × (1 + k 1).
Compared with the prior art, the method has the advantages that the sample to be detected in the stirring tank is detected, the detection result is obtained, the amount of the fluid raw material pushed into the stirring tank is adjusted according to the detection result, in the embodiment of the invention, the gap of the fluid raw material can be obtained according to the detection result of the sample to be monitored, the amount of the fluid raw material can be obtained according to the gap of the fluid raw material, the pushing height is calculated according to the amount of the fluid raw material and the radius of the fluid raw material input tank, and the real-time bubble amount in the stirring tank is predicted according to the bubble amount of the sample to be detected, so that the pushing speed of the fluid raw material pushed into the stirring tank is determined, the comprehensive adjustment of the uniformity and the bubble amount of the flooding emulsion is realized, and the preparation efficiency of the flooding emulsion is improved.
Especially, when a sample to be detected is detected, after the sample to be detected is discharged into the sample box, when the fluid raw material is increased, the uniformity of the sample to be detected tends to a standard range, but after the fluid raw material enters the stirring tank, the sample to be detected needs to be stirred in order to achieve the uniformity of the sample to be detected as soon as possible, but the increase of the stirring speed increases the bubble quantity, and the pushing speed of the pushing mechanism needs to be increased in order to maintain the bubble quantity in the stirring tank, so that the fluid raw material enters the stirring tank in a short time period, the bubble quantity of the fluid raw material is small, and the bubble quantity in the stirring tank is neutralized.
Particularly, the pushing speed and the pushing height of the fluid raw materials are determined, so that the preparation process of the oil displacement emulsion in the stirring tank is intelligently adjusted, the uniformity and the bubble amount in the stirring tank are ensured to be within a standard range, the intelligent regulation and control of the oil displacement emulsion state in the stirring tank are realized, and the preparation efficiency is improved.
Particularly, the pushing height of the fluid raw materials is determined according to the difference value between the actual uniformity and the standard uniformity, and the smaller the difference value between the standard uniformity D0 and the actual uniformity D is, the smaller the required fluid raw materials are, the smaller the height required to be pushed is, and the larger the height required to be pushed is if the more the fluid raw materials are required, so that the pushing speed is determined by the amount of bubbles in the sample to be detected, the effective preparation of the oil-displacing emulsion is realized, and the preparation efficiency is improved.
Particularly, the pushing speed is adjusted on the basis of the original standard pushing speed, so that the effective control on the fluid raw material is realized, the intelligent control on the bubble amount in the preparation process of the oil displacement emulsion is realized, and the preparation efficiency of the oil displacement emulsion is improved.
Particularly, the wall scraping structure is arranged in the stirring tank, so that the displacement of reservoir oil emulsion is ensured to be exhausted from the stirring tank when the displacement is discharged by using the discharge port, and the discharge efficiency of the displacement of reservoir oil emulsion is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a preparation device for a shale oil reservoir imbibition nano oil displacement emulsion according to an embodiment of the invention;
FIG. 2 is a schematic front view of a manufacturing apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic perspective view of a pushing structure of a manufacturing apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a stirring blade of a manufacturing apparatus according to an embodiment of the present invention in a front view;
fig. 5 is a schematic view of a partially enlarged structure at a in fig. 1 of a manufacturing apparatus according to an embodiment of the present invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The preparation device of the shale oil reservoir imbibition nano oil displacement emulsion provided by the embodiment of the invention comprises the following steps:
the fluid raw material input tank is used for inputting the fluid raw materials into the stirring tank, and a pushing mechanism is arranged in the fluid raw material input tank and used for pushing the fluid raw materials;
the device comprises a stirring tank, a fluid raw material barrel, a sampling pipe and a stirring mechanism, wherein the stirring tank is used for collecting and stirring all raw materials, the fluid raw material barrel is arranged above the stirring tank so as to facilitate the fluid raw materials to enter the stirring tank, the sampling pipe is arranged on the side wall of the stirring tank and is used for detecting a sample to be detected in the stirring tank and obtaining a detection result, and the stirring mechanism is arranged in the stirring tank and is used for stirring the sample to be detected in the stirring tank;
and a central control module (not shown in the figure) for adjusting the pushing rate of the pushing mechanism according to the detection result.
Specifically, in the embodiment of the present invention, when a sample to be detected is detected, after the sample to be detected is discharged into the sample box, when the fluid material is increased, the uniformity of the sample to be detected tends to the standard range, but after the fluid material enters the stirring tank, stirring needs to be performed in order to achieve the uniformity of the sample to be detected as soon as possible, but the increase of the stirring speed increases the bubble amount, and in order to maintain the bubble amount in the stirring tank, the pushing rate of the pushing mechanism needs to be increased, so that the fluid material enters the stirring tank in a short time period, and the bubble amount of the fluid material is small, so as to neutralize the bubble amount in the stirring tank.
Specifically, in practical application, after a sample to be detected is detected, the amount of the fluid raw material to be added can be calculated according to a detection result, the bubble amount of the sample to be detected can be directly determined according to the detection result, if the stirring degree in the tank is judged in the early stage, if the stirring speed before the fluid raw material is increased is higher, the bubble amount in the tank is larger and higher than the standard bubble amount, the bubble amount in the tank is reduced after the fluid raw material is added, therefore, when the fluid raw material is added, the bubble amount of the fluid raw material to be added is as small as possible, the bubble amount of the sample to be detected after stirring is reduced, the uniformity and the bubble amount tend to be standard in the stirring process of the sample to be detected, and the oil displacement emulsion is discharged from a discharge port.
Specifically, in the embodiment of the invention, the sample to be detected in the stirring tank is detected to obtain the detection result, and the amount of the fluid raw material pushed into the stirring tank is adjusted according to the detection result, in the embodiment of the invention, the gap of the fluid raw material can be obtained according to the detection result of the sample to be monitored, the amount of the fluid raw material can be obtained according to the gap of the fluid raw material, the pushing height is calculated according to the amount of the fluid raw material and the radius of the fluid raw material input tank, and then the real-time bubble amount in the stirring tank is predicted according to the bubble amount of the sample to be detected, so that the pushing rate of the fluid raw material pushed into the stirring tank is determined, the comprehensive adjustment of the uniformity and the bubble amount of the flooding emulsion is realized, and the preparation efficiency of the flooding emulsion is improved.
Specifically, the adjusting the pushing rate of the pushing mechanism according to the detection result includes:
a standard bubble amount N0 and a standard uniformity D0 are preset in the central control module, and the detection result comprises an actual bubble amount N and an actual uniformity D;
determining the difference between the standard uniformity D0 and the actual uniformity D, calculating the gap of the fluid raw material according to the difference between the actual uniformity and the standard uniformity, determining the pushing height of the fluid raw material, and determining the pushing speed according to the difference between the actual bubble quantity N and the standard bubble quantity N0.
Specifically, the pushing speed and the pushing height of the fluid raw materials are determined, so that the preparation process of the oil displacement emulsion in the stirring tank is intelligently adjusted, the uniformity and the bubble amount in the stirring tank are ensured to be within a standard range, the intelligent regulation and control of the state of the oil displacement emulsion in the stirring tank are realized, and the preparation efficiency is improved.
Specifically, a first height H1, a second height H2 and a third height H3 are arranged in the central control module, and if the difference between the standard uniformity D0 and the actual uniformity D is not more than D0, the first height H1 is adopted as the pushing height of the fluid raw material;
if the difference between the standard uniformity D0 and the actual uniformity D is larger than D0 and is larger than or equal to 3 multiplied by D0, adopting a second height H2 as the pushing height of the fluid raw material;
if the difference between the standard uniformity D0 and the actual uniformity D is larger than 3 multiplied by D0, the third height H3 is adopted as the pushing height of the fluid raw material;
when any height is selected as the pushing height of the fluid raw material, detecting the actual bubble quantity N, and if the actual bubble quantity N is less than or equal to the standard bubble quantity N0, reducing the pushing speed by adopting a first coefficient k 1;
if the actual bubble amount N > the standard bubble amount N0, the pushing speed is increased by the first coefficient k 1.
Specifically, according to the embodiment of the invention, the pushing height of the fluid raw material is determined according to the difference between the actual uniformity and the standard uniformity, and the smaller the difference between the standard uniformity D0 and the actual uniformity D is, the smaller the required fluid raw material is, the smaller the height required to be pushed is, and if the more the fluid raw material is required, the larger the height required to be pushed is, the embodiment of the invention also determines the pushing speed according to the amount of bubbles in the sample to be detected, so that the effective preparation of the flooding emulsion is realized, and the preparation efficiency is improved.
Specifically, a standard pushing speed V0 is preset in the central control module, and when the pushing speed is reduced by a first coefficient k1, the pushing speed after the reduction is set to V10' = V0 × (1-k 1);
the pushing speed is increased by a first coefficient k1, and the pushing speed after the increase is set to V10 ″ = V0 × (1 + k 1).
Specifically, the embodiment of the invention realizes effective control of fluid raw materials by adjusting the pushing speed on the basis of the original standard pushing speed, realizes intelligent control of bubble amount in the preparation process of the oil-displacing emulsion, and improves the preparation efficiency of the oil-displacing emulsion.
Specifically, a discharge hole is formed in the bottom of the stirring tank, and the oil displacement emulsion in the stirring tank is discharged through the discharge hole after the sample to be detected meets the requirement;
particularly, when stirring the raw materials in the agitator tank, be provided with agitating unit in the agitator tank, servo motor is all installed to the both sides on agitator tank top, and servo motor's bottom all installs the stirring rake, the lateral wall of stirring rake all is provided with scrapes the wall structure for clear up the pipe wall of agitator tank.
Specifically, the embodiment of the invention realizes that the displacement emulsion is completely discharged from the stirring tank when the oil is discharged by using the discharge port by arranging the scraping wall structure in the stirring tank, and ensures the discharge efficiency of the displacement emulsion.
Specifically, the embodiment of the invention also provides a preparation method of the shale oil reservoir imbibition nano oil displacement emulsion, which comprises the following steps:
inputting a fluid raw material into a stirring tank, wherein a pushing mechanism is arranged in the fluid raw material input tank and used for pushing the fluid raw material;
collecting and stirring all raw materials, wherein the fluid raw material barrel is arranged above the side of the stirring tank so as to be convenient for the fluid raw materials to enter the stirring tank, a sampling pipe is arranged on the side wall of the stirring tank and is used for detecting a sample to be detected in the stirring tank to obtain a detection result, and a stirring mechanism is arranged in the stirring tank and is used for stirring the sample to be detected in the stirring tank;
and adjusting the pushing speed of the pushing mechanism according to the detection result.
Specifically, the detection result includes an actual bubble amount N and an actual uniformity D;
determining the difference between the standard uniformity D0 and the actual uniformity D, calculating the gap of the fluid raw material according to the difference between the actual uniformity and the standard uniformity, determining the pushing height of the fluid raw material, and determining the pushing speed according to the difference between the actual bubble amount N and the standard bubble amount N0.
Specifically, a first height H1, a second height H2 and a third height H3 are arranged, and if the difference between the standard uniformity D0 and the actual uniformity D is less than or equal to D0, the first height H1 is used as the pushing height of the fluid raw material;
if the difference between the standard uniformity D0 and the actual uniformity D is larger than D0 and is larger than or equal to 3 multiplied by D0, adopting a second height H2 as the pushing height of the fluid raw material;
if the difference between the standard uniformity D0 and the actual uniformity D is larger than 3 multiplied by D0, the third height H3 is adopted as the pushing height of the fluid raw material;
when any height is selected as the pushing height of the fluid raw material, detecting the actual bubble quantity N, and if the actual bubble quantity N is less than or equal to the standard bubble quantity N0, reducing the pushing speed by adopting a first coefficient k 1;
if the actual bubble amount N is greater than the standard bubble amount N0, the pushing speed is increased by the first coefficient k 1.
Specifically, a standard pushing speed V0 is set in advance, and when the pushing speed is reduced by a first coefficient k1, the pushing speed after the reduction is set to V10' = V0 × (1-k 1);
the pushing speed is increased by a first coefficient k1, and the pushing speed after the increase is set to V10 ″ = V0 × (1 + k 1).
The preparation method in the embodiment of the invention depends on the preparation device in the embodiment of the invention, has the same technical characteristics, can achieve the same technical effect, and is not described herein again.
Specifically, in practical application, the device for preparing a shale oil reservoir imbibition nano flooding emulsion in the embodiment of the invention, please refer to fig. 1-5, and comprises a stirring tank 1, wherein supporting legs 7 are installed on the outer side wall of the stirring tank 1, a discharge port 8 is arranged at the bottom end of the stirring tank 1, servo motors 4 are installed on both sides of the top end of the stirring tank 1, stirring paddles 5 are installed at the bottom ends of the servo motors 4, two groups of stirring paddles 5 are arranged, the two groups of stirring paddles 5 are symmetrically distributed about the central axis of the stirring tank 1, so as to stir emulsion preparation materials more fully, a wall scraping structure 2 is arranged on the outer side wall of the stirring paddle 5, a fluid raw material input tank 9 is arranged at the top end of one side of the stirring tank 1, a pushing structure 3 is arranged inside the fluid raw material input tank 9, the pushing structure 3 comprises a threaded rod 301, and the threaded rod 301 is movably connected inside the fluid raw material input tank 9, the outer side walls of the threaded rods 301 are movably connected with threaded blocks 303, the outer side walls of the threaded blocks 303 are provided with pushing rings 302, and the other side of the stirring tank 1 is provided with a sampling structure 6;
the outer diameter of the pushing ring 302 is smaller than the inner diameter of the fluid raw material input tank 9, the pushing ring 302 is matched with the fluid raw material input tank 9, and the scraping effect on materials adhered to the inner side wall of the fluid raw material input tank 9 is better;
the inner side wall of the thread block 303 is uniformly provided with internal threads, the thread block 303 and the threaded rod 301 form threaded connection, and the design of the threaded connection is convenient for pushing the pushing ring 302 to move up and down to scrape materials adhered to the inner side wall of the fluid raw material input tank 9;
specifically, as shown in fig. 1 and fig. 3, in use, after the material input into the stirring tank 1 through the fluid material input tank 9 is completed, the threaded rod 301 is held to rotate the threaded rod 301, the threaded rod 301 rotates to drive the outer side wall of the threaded block 303 to move up and down on the inner side wall of the fluid material input tank 9 through the pushing ring 302 installed on the threaded block 303, and the inner side wall of the fluid material input tank 9 is scraped to remove the adhered material, so that the material input effect of the fluid material input tank 9 is better.
The wall scraping structure 2 comprises a mounting ring 201, the mounting ring 201 is sleeved on the outer side wall of the stirring paddle 5, scraping rods 203 are mounted on one sides of the mounting ring 201, connecting rods 202 are mounted on one sides of the scraping rods 203, and one sides of the connecting rods 202 are fixed with one sides of the connecting rods 202 on the outer side wall of the stirring paddle 5;
specifically, as shown in fig. 1 and 4, in use, the stirring paddle 5 rotates to stir the material inside the stirring tank 1, the scraping rod 203 mounted on the outer side wall mounting ring 201 of the stirring paddle 5 scrapes the inner side wall of the stirring tank 1 during stirring to avoid adhesion of the material, and the connecting rod 202 mounted on the scraping rod 203 supports the rotation of the mounting ring 201 one by one, so that the scraping wall of the mounting ring 201 is more stable.
The sampling structure 6 comprises a sampling tube 603, the sampling tube 603 is arranged on one side of the stirring tank 1, a valve 604 is arranged inside the sampling tube 603, a mounting seat 601 is arranged at the bottom end of the sampling tube 603, and a sampling box 602 is arranged inside the mounting seat 601;
the cross section of the mounting seat 601 is larger than that of the sampling box 602, a clamping structure is formed between the mounting seat 601 and the sampling box 602, the sampling box 602 is convenient to disassemble and assemble due to the design of the clamping structure, and the use is more convenient;
specifically, as shown in fig. 1 and fig. 5, in use, when the emulsion in the stirring tank 1 is sampled in the preparation process of the stirring tank 1, the valve 604 in the sampling tube 603 is opened, the emulsion in the stirring tank 1 falls into the sampling box 602 through the sampling tube 603, the sampling box 602 is lifted upwards to be separated from the mounting seat 601, the emulsion in the sampling box 602 can be taken out to be observed, and the sampling box 602 can be clamped back to the mounting seat 601 for continuous use after the sampling box 602 is observed and cleaned.
The working principle is as follows: the external power supply of the preparation device is characterized in that when the preparation device is used, materials required by emulsion preparation are poured into the stirring tank 1 through the fluid raw material input tank 9, the threaded rod 301 is held to rotate the threaded rod 301 after the pouring is finished, the threaded rod 301 rotates to drive the outer side wall of the threaded block 303 to move up and down on the inner side wall of the fluid raw material input tank 9 through the pushing ring 302 arranged on the threaded block 303, the materials adhered to the inner side wall of the fluid raw material input tank 9 are pushed to fall into the stirring tank 1, the waste is avoided, when the materials fall into the stirring tank 1, the servo motor 4 is started to drive the stirring paddle 5 to stir the materials prepared by the emulsion in the stirring tank 1, the scraping rod 203 arranged on the outer side wall mounting ring 201 of the stirring paddle 5 in the process of stirring the emulsion materials is scraped to scrape the inner side wall of the stirring tank 1 to avoid the adhesion of the materials, and when the sampling is required in the preparation and stirring process, the emulsion in the stirring tank 1 is dropped into the sampling box 602 by opening the valve 604 in the sampling tube 603 through the sampling tube 603, then the sampling box 602 is lifted upwards to be separated from the mounting seat 601, and the emulsion in the sampling box 602 can be taken out for observation, and the emulsion prepared in the stirring tank 1 can be discharged by opening the discharge port 8 after the emulsion is prepared, so that the using work of the preparation device is finally completed.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A preparation facilities of shale oil reservoir imbibition nanometer displacement of reservoir oil emulsion which characterized in that includes:
the fluid raw material input tank is used for inputting the fluid raw materials into the stirring tank, and a pushing mechanism is arranged in the fluid raw material input tank and used for pushing the fluid raw materials;
the device comprises a stirring tank, a fluid raw material barrel, a sampling pipe and a stirring mechanism, wherein the stirring tank is used for collecting and stirring all raw materials, the fluid raw material barrel is arranged above the side of the stirring tank so as to be convenient for the fluid raw materials to enter the stirring tank, the sampling pipe is arranged on the side wall of the stirring tank and is used for detecting a sample to be detected in the stirring tank to obtain a detection result, and the stirring mechanism is arranged in the stirring tank and is used for stirring the sample to be detected in the stirring tank;
and the central control module is used for adjusting the pushing speed of the pushing mechanism according to the detection result.
2. The apparatus for preparing the shale oil reservoir imbibition nano flooding emulsion as claimed in claim 1, wherein the central control module adjusting the pushing rate of the pushing mechanism according to the detection result comprises:
a standard bubble amount N0 and a standard uniformity D0 are preset in the central control module, and the detection result comprises an actual bubble amount N and an actual uniformity D;
determining the difference between the standard uniformity D0 and the actual uniformity D, calculating the gap of the fluid raw material according to the difference between the actual uniformity and the standard uniformity, determining the pushing height of the fluid raw material, and determining the pushing speed according to the difference between the actual bubble amount N and the standard bubble amount N0.
3. The device for preparing the shale oil reservoir imbibition nano oil-displacing emulsion according to claim 2,
a first height H1, a second height H2 and a third height H3 are arranged in the central control module, and if the difference between the standard uniformity D0 and the actual uniformity D is not more than D0, the first height H1 is adopted as the pushing height of the fluid raw material;
if the difference between the standard uniformity D0 and the actual uniformity D is larger than D0 and is larger than or equal to 3 multiplied by D0, adopting a second height H2 as the pushing height of the fluid raw material;
if the difference between the standard uniformity D0 and the actual uniformity D is larger than 3 multiplied by D0, the third height H3 is adopted as the pushing height of the fluid raw material;
when any height is selected as the pushing height of the fluid raw material, detecting the actual bubble quantity N, and if the actual bubble quantity N is less than or equal to the standard bubble quantity N0, reducing the pushing speed by adopting a first coefficient k 1;
if the actual bubble amount N is greater than the standard bubble amount N0, the pushing speed is increased by the first coefficient k 1.
4. The device for preparing the shale oil reservoir imbibition nano flooding emulsion according to claim 3,
a standard pushing speed V0 is preset in the central control module, and when the pushing speed is reduced by adopting a first coefficient k1, the reduced pushing speed is set as V10' = V0 x (1-k 1);
the pushing speed is increased by a first coefficient k1, and the pushing speed after the increase is set to V10 ″ = V0 × (1 + k 1).
5. The device for preparing the shale oil reservoir imbibition nano flooding emulsion according to claim 4,
a discharge hole is formed in the bottom of the stirring tank, and the oil displacement emulsion in the stirring tank is discharged through the discharge hole after the sample to be detected meets the requirement;
when stirring the raw materials in the agitator tank, be provided with agitating unit in the agitator tank, servo motor is all installed to the both sides on agitator tank top, and servo motor's bottom all installs the stirring rake, the lateral wall of stirring rake all is provided with scrapes the wall structure for clear up the pipe wall of agitator tank.
6. A preparation method of the shale oil reservoir imbibition nano oil-displacing emulsion by applying the preparation device of the shale oil reservoir imbibition nano oil-displacing emulsion according to any one of claims 1 to 5 is characterized by comprising the following steps:
inputting a fluid raw material into a stirring tank, wherein a pushing mechanism is arranged in the fluid raw material input tank and used for pushing the fluid raw material;
collecting and stirring all raw materials, wherein the fluid raw material barrel is arranged above the side of the stirring tank so as to be convenient for the fluid raw materials to enter the stirring tank, a sampling pipe is arranged on the side wall of the stirring tank and is used for detecting a sample to be detected in the stirring tank to obtain a detection result, and a stirring mechanism is arranged in the stirring tank and is used for stirring the sample to be detected in the stirring tank;
and adjusting the pushing speed of the pushing mechanism according to the detection result.
7. The preparation method of the shale oil reservoir imbibition nano oil-displacing emulsion as claimed in claim 6,
the detection result comprises the actual bubble quantity N and the actual uniformity D;
determining the difference between the standard uniformity D0 and the actual uniformity D, calculating the gap of the fluid raw material according to the difference between the actual uniformity and the standard uniformity, determining the pushing height of the fluid raw material, and determining the pushing speed according to the difference between the actual bubble amount N and the standard bubble amount N0.
8. The preparation method of the shale oil reservoir imbibition nano oil-displacing emulsion as claimed in claim 7,
a first height H1, a second height H2 and a third height H3 are arranged, and if the difference between the standard uniformity D0 and the actual uniformity D is less than or equal to D0, the first height H1 is adopted as the pushing height of the fluid raw material;
if the difference between the standard uniformity D0 and the actual uniformity D is larger than D0 and is larger than or equal to 3 multiplied by D0, adopting a second height H2 as the pushing height of the fluid raw material;
if the difference between the standard uniformity D0 and the actual uniformity D is larger than 3 multiplied by D0, the third height H3 is adopted as the pushing height of the fluid raw material;
when any height is selected as the pushing height of the fluid raw material, detecting the actual bubble quantity N, and if the actual bubble quantity N is less than or equal to the standard bubble quantity N0, reducing the pushing speed by adopting a first coefficient k 1;
if the actual bubble amount N > the standard bubble amount N0, the pushing speed is increased by the first coefficient k 1.
9. The preparation method of the shale oil reservoir imbibition nano flooding emulsion as claimed in claim 8,
a standard pushing speed V0 is set in advance, and when the pushing speed is reduced by a first coefficient k1, the pushing speed after the reduction is set to V10' = V0 × (1-k 1);
the pushing speed is increased by a first coefficient k1, and the pushing speed after the increase is set to V10 ″ = V0 × (1 + k 1).
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| JP2008284514A (en) * | 2007-05-21 | 2008-11-27 | Kao Corp | Manufacturing method of oil-in-water emulsion composition |
| US20100248216A1 (en) * | 2007-11-20 | 2010-09-30 | 3M Innovative Properties Company | Sample preparation container and method |
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