CN104806213A - Novel partial pressure injection tool - Google Patents
Novel partial pressure injection tool Download PDFInfo
- Publication number
- CN104806213A CN104806213A CN201510103881.4A CN201510103881A CN104806213A CN 104806213 A CN104806213 A CN 104806213A CN 201510103881 A CN201510103881 A CN 201510103881A CN 104806213 A CN104806213 A CN 104806213A
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- China
- Prior art keywords
- throttling
- fusiformis
- groove
- annulated column
- core
- 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
- 238000002347 injection Methods 0.000 title abstract description 5
- 239000007924 injection Substances 0.000 title abstract description 5
- 238000002513 implantation Methods 0.000 claims description 23
- 239000011295 pitch Substances 0.000 claims description 14
- 230000007704 transition Effects 0.000 claims description 7
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 claims description 3
- 239000000243 solution Substances 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 5
- 239000011206 ternary composite Substances 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 description 7
- 239000012530 fluid Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to a novel partial pressure injection tool. The novel partial pressure injection tool is a depressurizing groove formed by coaxially sheathing a throttling core, an inner throttling ring pillar, an outer throttling ring pillar and an outer cylinder from inside to outside; the throttling core, the inner throttling ring pillar, and the outer throttling ring pillar are variable cross-section; the throttling core is formed by orderly connecting eight spindle shaped grooves with equal groove distance; the shape of the inner throttling ring pillar is the same as that of the outer throttling ring pillar; the inner throttling ring pillar and the outer throttling ring pillar are formed by orderly connecting eight spindle shaped ring grooves with equal groove distance; the spindle shaped grooves of the throttling core is corresponding to the spindle shaped ring grooves of the inner throttling ring pillar one by one, and the spindle ring grooves of the inner throttling ring pillar are corresponding to the spindle shaped ring grooves of the outer throttling ring pillar one by one; the longitudinal section of the spindle shaped ring grooves along the length direction is in the shape of spindle, and the longitudinal section of the spindle shaped grooves of the throttling core along the length direction is also in the shape of spindle; an annular gap between the inner throttling ring pillar and the throttling core is equal to the ring gap between the outer throttling ring pillar and the inner throttling ring pillar; the annular gap between the outer cylinder and the outer throttling ring pillar is slightly more than the annular gap. The novel partial pressure injection tool reduces the shear failure effect on ternary composite solution, and reduces the viscosity loss of flowing through the depressurizing groove.
Description
Technical field
The implantation tool used when the present invention relates to oilfield injection or note tri compound solution, is specifically related to novel dividing potential drop implantation tool.
Background technology
Along with oil field development enters into the later stage, most of oil field adopts polymer flooding or ternary composite driving to improve field output.But when noting poly-or note tri compound solution; the structure of implantation tool can affect the pressure of fluid and the change of viscosity; general implantation tool can produce larger pressure drop and higher viscosity loss usually, and the amplitude so just making polymer solution or tri compound solution improve recovery ratio reduces.Especially, when injecting to high permeability zone, after dispensing instrument is sheared, the effect of the recovery ratio of raising receives very large impact.
The decompression principle of relief groove changes mainly through the section area of runner, realizes the acceleration of fluid and deceleration thus realizes the reduction gradually of pressure.The viscosity loss source of polymer solution and tri compound solution mainly contains two parts, a part is the shear action to solution that the velocity gradient between main flow region and wall area causes, and a part is that the turbulent velocity of the jet area in main flow region is pulsed the solution molecule chain break caused.The realization of the Pressure Drop that relief groove is large and these two targets of little viscosity loss is conflicting, start with from the turbulence pulsation in the velocity gradient reduced between wall and main flow region and main flow region, explore a kind ofly being different from the novel dividing potential drop implantation tool of oil field at a kind of applicable tri compound solution with dividing potential drop implantation tool.
Summary of the invention
The object of this invention is to provide novel dividing potential drop implantation tool to put, the implantation tool used when this novel dividing potential drop implantation tool is for solving existing note and gathering or note tri compound solution can produce the higher problem of larger pressure drop process medium viscosity loss usually.
The technical solution adopted for the present invention to solve the technical problems is: this novel dividing potential drop implantation tool is by throttling core, interior throttling annulated column, outer throttling annulated column, the urceolus relief groove that forms of coaxial package from inside to outside together, and throttling core, interior throttling annulated column, outer throttling annulated column are variable cross-section; Throttling core is connected to form successively by the fusiformis groove of the slot pitches such as 8,8 fusiformis groove structures are identical, interior throttling annulated column is identical with outer throttling Ring-cylindrical shape, interior throttling annulated column and outer throttling annulated column are connected to form successively by the fusiformis annular groove of the slot pitches such as 8,8 fusiformis groove structures are identical, the fusiformis groove of throttling core and the fusiformis annular groove one_to_one corresponding of interior throttling annulated column, the fusiformis annular groove of interior throttling annulated column and the fusiformis annular groove one_to_one corresponding of outer throttling annulated column; Fusiformis annular groove longitudinal section is along its length fusiformis, and the fusiformis groove longitudinal section along its length of throttling core is also fusiformis, and above-mentioned fusiformis size shape is identical; Annular space between interior throttling annulated column and throttling core equals the annular space between outer throttling annulated column and interior throttling annulated column, and the annular space between urceolus and outer throttling annulated column is a bit larger tham above-mentioned annular space.
In such scheme, fusiformis groove slot pitch is 4.5mm, and fusiformis annular groove slot pitch is 4.5mm, and fusiformis groove is the column be made up of divergent segment, by-level section, converging transition, and fusiformis annular groove is the ring cylinder be made up of divergent segment, by-level section, converging transition.
In such scheme, the front groove angle level of fusiformis groove and fusiformis annular groove is apart from being 2mm, and the by-level section of fusiformis groove and fusiformis annular groove is 1mm, and the rear groove angle horizontal range of fusiformis groove and fusiformis annular groove is 1.5mm; The vertical distance of front and back groove angle of fusiformis groove and fusiformis annular groove is 1mm, and the vertical distance in entrance of fusiformis groove and fusiformis annular groove is 1mm.
In such scheme, urceolus internal diameter is 20mm, and the annular space between urceolus and outer throttling annulated column is 0.9mm, the annular space 0.8mm between interior throttling annulated column and throttling core, and the annular space between outer throttling annulated column and interior throttling annulated column is 0.8mm.
The present invention has following beneficial effect:
1, throttling annulated column of the present invention and throttling core are all variable cross-sections, expand the sectional area that solution flows through relief groove 20mm internal diameter runner, thus reduce the velocity amplitude at smallest cross-sectional place, thus reduce the velocity gradient between wall and main flow region.Say that the sectional area of the area ratio existing structure relief groove of each cross section of fluid channel increases on the whole, total basis reduces the turbulence pulsation of speed.Reduce the shear failure effect to tri compound solution by these designs, reduce the viscosity loss flowing through relief groove.
2, structure of the present invention is simple, and the dividing potential drop implantation tool through originally providing shear after solution pressure drop large, viscosity loss is little.
3, effect of the present invention is the change by cross section of fluid channel area, realizes the acceleration of fluid and deceleration thus realizes the reduction gradually of pressure.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the pressure distribution schematic diagram in the present invention.
Fig. 3 is the VELOCITY DISTRIBUTION schematic diagram in the present invention.
Fig. 4 is the apparent viscosity distribution schematic diagram in the present invention.
Fig. 5 is fusiformis groove and the diagram of fusiformis annular groove each several part in the present invention.
Fig. 6 is A-A sectional drawing in Fig. 1.
In figure: 1. throttling core, throttling annulated column 2., 3. outer throttling annulated column, 4. urceolus.
Detailed description of the invention
The present invention is further illustrated below:
Shown in composition graphs 1, Fig. 6, this novel dividing potential drop implantation tool is by throttling core 1, interior throttling annulated column 2, outer throttling annulated column 3, urceolus 4 relief groove that forms of coaxial package from inside to outside together, namely in, throttling annulated column 2 is looped around outside throttling core 1, outer throttling annulated column 3 is looped around outside interior throttling annulated column 2, urceolus 4 is looped around outside outer throttling annulated column 3, and throttling core 1, interior throttling annulated column 2, outer throttling annulated column 3 are variable cross-section.Urceolus 4 internal diameter is 20mm, (urceolus internal diameter is shown in d10 in Fig. 5), annular space between urceolus 4 and outer throttling annulated column 3 is 0.9mm, annular space 0.8mm between interior throttling annulated column 2 and throttling core 1, annular space between outer throttling annulated column 3 and interior throttling annulated column 2 is 0.8mm, annular space between interior throttling annulated column 2 and throttling core 1 equals the annular space between outer throttling annulated column 3 and interior throttling annulated column 2, annular space (see d11 in Fig. 5) between urceolus 4 and outer throttling annulated column 3 is a bit larger tham the annular space (see d12 in Fig. 5) between interior throttling annulated column 2 and throttling core 1, certainly the annular space (see d13 in Fig. 5) between outer throttling annulated column 3 and interior throttling annulated column 2 is also greater than.
Throttling core 1 is connected to form successively by the fusiformis groove of the slot pitches such as 8,8 fusiformis groove structures are identical, interior throttling annulated column 2 is identical with outer throttling annulated column 3 shape, interior throttling annulated column 2 and outer throttling annulated column 3 are connected to form successively by the fusiformis annular groove of the slot pitches such as 8,8 fusiformis groove structures are identical, the fusiformis groove of throttling core 1 and the fusiformis annular groove one_to_one corresponding of interior throttling annulated column 2, the fusiformis annular groove of interior throttling annulated column 2 and the fusiformis annular groove one_to_one corresponding of outer throttling annulated column 3, the entrance of relief groove is the entrance of throttling core 1, interior throttling annulated column 2, outer throttling annulated column 3, urceolus 4; Fusiformis annular groove longitudinal section is along its length fusiformis, and the fusiformis groove longitudinal section along its length of throttling core 1 is also fusiformis, and above-mentioned fusiformis size shape is identical;
Fusiformis groove slot pitch (length of fusiformis groove) is 4.5mm, (slot pitch is shown in d6 in Fig. 5), fusiformis annular groove slot pitch (length of fusiformis annular groove) is 4.5mm, fusiformis groove is the column be made up of divergent segment, by-level section, converging transition, and fusiformis annular groove is the ring cylinder be made up of divergent segment, by-level section, converging transition.Front groove angle (i.e. divergent segment) level of fusiformis groove and fusiformis annular groove is apart from being 2mm, (front groove angle level is apart from seeing d7 in Fig. 5), the by-level section of fusiformis groove and fusiformis annular groove is 1mm, (by-level section is shown in d8 in Fig. 5), rear groove angle (i.e. converging transition) horizontal range of fusiformis groove and fusiformis annular groove is 1.5mm, (rear groove angle level is apart from seeing d9 in Fig. 5); The vertical distance of front and back groove angle of fusiformis groove and fusiformis annular groove is 1mm, (the vertical distance of front groove angle is shown in d14 in Fig. 5, the vertical distance of rear groove angle is shown in d15 in Fig. 5), the vertical distance in entrance of fusiformis groove and fusiformis annular groove is 1mm, (the vertical distance in entrance is shown in d16 in Fig. 5).
Show this novel implantation tool step-down and viscosity reduction damage effect intuitively in order to convenient, the present invention has carried out numerical simulation analysis to instrument, utilizes CFD software to set up the runner geometrical model of novel dividing potential drop implantation tool.The regularity of distribution of velocity field, pressure field and viscosity field is obtained after simulation.As shown in Figure 2, as seen from the figure, pressure progressively reduces pressure distribution in the novel dividing potential drop implantation tool of the present invention from the inlet to the outlet, and the pressure distribution between each annular channel is basically identical.Often through a slot pitch, pressure just corresponding decline.As shown in Figure 3, maximal rate appears at minimum place, cross section to VELOCITY DISTRIBUTION situation in novel dividing potential drop implantation tool, and the flow velocity of most external annular space will slightly lower than the speed of inner two annular spaces.The VELOCITY DISTRIBUTION of inner two annular spaces is substantially identical.As shown in Figure 4, the apparent viscosity regularity of distribution in each annular space cross section is substantially identical in the apparent viscosity distribution of novel dividing potential drop implantation tool.The wall place in minimum annular space cross section, the apparent viscosity value of solution is minimum.Along with the change of section area, apparent viscosity value occurs that the change in cycle is large and diminish.
The foregoing describe general principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand, and the present invention is not by the restriction of above-mentioned embodiment, and without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.
Claims (4)
1. a novel dividing potential drop implantation tool, it is characterized in that: this novel dividing potential drop implantation tool is by throttling core (1), interior throttling annulated column (2), outer throttling annulated column (3), urceolus (4) relief groove that forms of coaxial package from inside to outside together, throttling core (1), interior throttling annulated column (2), outer throttling annulated column (3) are variable cross-section; Throttling core (1) is connected to form successively by the fusiformis groove of the slot pitches such as 8,8 fusiformis groove structures are identical, interior throttling annulated column (2) is identical with outer throttling annulated column (3) shape, interior throttling annulated column (2) and outer throttling annulated column (3) are connected to form successively by the fusiformis annular groove of the slot pitches such as 8,8 fusiformis groove structures are identical, the fusiformis groove of throttling core (1) and the fusiformis annular groove one_to_one corresponding of interior throttling annulated column (2), the fusiformis annular groove of interior throttling annulated column (2) and the fusiformis annular groove one_to_one corresponding of outer throttling annulated column (3); Fusiformis annular groove longitudinal section is along its length fusiformis, and the fusiformis groove longitudinal section along its length of throttling core (1) is also fusiformis, and above-mentioned fusiformis size shape is identical; Annular space between interior throttling annulated column (2) and throttling core (1) equals the annular space between outer throttling annulated column (3) and interior throttling annulated column (2), and the annular space between urceolus (4) and outer throttling annulated column (3) is a bit larger tham above-mentioned annular space.
2. novel dividing potential drop implantation tool according to claim 1, it is characterized in that: described fusiformis groove slot pitch is 4.5mm, fusiformis annular groove slot pitch is 4.5mm, fusiformis groove is the column be made up of divergent segment, by-level section, converging transition, and fusiformis annular groove is the ring cylinder be made up of divergent segment, by-level section, converging transition.
3. novel dividing potential drop implantation tool according to claim 2, it is characterized in that: the front groove angle level of described fusiformis groove and fusiformis annular groove is apart from being 2mm, the by-level section of fusiformis groove and fusiformis annular groove is 1mm, and the rear groove angle horizontal range of fusiformis groove and fusiformis annular groove is 1.5mm; The vertical distance of front and back groove angle of fusiformis groove and fusiformis annular groove is 1mm, and the vertical distance in entrance of fusiformis groove and fusiformis annular groove is 1mm.
4. novel dividing potential drop implantation tool according to claim 3, it is characterized in that: described urceolus (4) internal diameter is 20mm, annular space between urceolus (4) and outer throttling annulated column (3) is 0.9mm, annular space 0.8mm between interior throttling annulated column (2) and throttling core (1), the annular space between outer throttling annulated column (3) and interior throttling annulated column (2) is 0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510103881.4A CN104806213B (en) | 2015-03-10 | 2015-03-10 | New partial pressure implantation tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510103881.4A CN104806213B (en) | 2015-03-10 | 2015-03-10 | New partial pressure implantation tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104806213A true CN104806213A (en) | 2015-07-29 |
| CN104806213B CN104806213B (en) | 2017-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510103881.4A Expired - Fee Related CN104806213B (en) | 2015-03-10 | 2015-03-10 | New partial pressure implantation tool |
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| Country | Link |
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| CN (1) | CN104806213B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109790746A (en) * | 2016-10-03 | 2019-05-21 | S.P.C.M.股份公司 | Device for the injection pressure for using polymer controls aided oil to harvest |
| CN110359891A (en) * | 2019-07-25 | 2019-10-22 | 东北石油大学 | A kind of pressure can survey the spiral bleeder mechanism and its measurement method of tune in real time |
| CN110374565A (en) * | 2019-07-25 | 2019-10-25 | 东北石油大学 | A kind of device and its experimental method that partial pressure and sub-prime injection can be achieved at the same time |
| CN110374564A (en) * | 2019-07-25 | 2019-10-25 | 东北石油大学 | A kind of pressure and viscosity can survey the bleeder mechanism and its measurement method of tune in real time |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109790746A (en) * | 2016-10-03 | 2019-05-21 | S.P.C.M.股份公司 | Device for the injection pressure for using polymer controls aided oil to harvest |
| CN109790746B (en) * | 2016-10-03 | 2021-11-23 | S.P.C.M.股份公司 | Device for controlling injection pressure for assisted oil recovery using polymers |
| CN110359891A (en) * | 2019-07-25 | 2019-10-22 | 东北石油大学 | A kind of pressure can survey the spiral bleeder mechanism and its measurement method of tune in real time |
| CN110374565A (en) * | 2019-07-25 | 2019-10-25 | 东北石油大学 | A kind of device and its experimental method that partial pressure and sub-prime injection can be achieved at the same time |
| CN110374564A (en) * | 2019-07-25 | 2019-10-25 | 东北石油大学 | A kind of pressure and viscosity can survey the bleeder mechanism and its measurement method of tune in real time |
| CN110359891B (en) * | 2019-07-25 | 2021-07-13 | 东北石油大学 | Spiral pressure dividing device with pressure capable of being measured and adjusted in real time and measuring method thereof |
| CN110374565B (en) * | 2019-07-25 | 2021-08-06 | 东北石油大学 | Device capable of realizing partial pressure and mass injection simultaneously and experimental method thereof |
| CN110374564B (en) * | 2019-07-25 | 2021-08-17 | 东北石油大学 | Pressure dividing device capable of measuring and adjusting pressure and viscosity in real time and measuring method thereof |
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| Publication number | Publication date |
|---|---|
| CN104806213B (en) | 2017-07-11 |
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Inventor after: Huang Bin Inventor after: Fu Cheng Inventor after: Bai Mingxing Inventor after: Song Kaoping Inventor after: Zhao Fajun Inventor after: Liu Jinxiang Inventor after: Ma Wenguo Inventor before: Huang Bin Inventor before: Fu Cheng Inventor before: Liu Jinxiang Inventor before: Zhao Fajun Inventor before: Wang Chunsheng Inventor before: Ma Wenguo |
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