CN111963123A - One-pump multi-injection profile control device and method for oil field - Google Patents
One-pump multi-injection profile control device and method for oil field Download PDFInfo
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- CN111963123A CN111963123A CN202010864956.1A CN202010864956A CN111963123A CN 111963123 A CN111963123 A CN 111963123A CN 202010864956 A CN202010864956 A CN 202010864956A CN 111963123 A CN111963123 A CN 111963123A
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- profile control
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- 238000002347 injection Methods 0.000 title claims abstract description 56
- 239000007924 injection Substances 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 238000002360 preparation method Methods 0.000 claims abstract description 17
- 238000002156 mixing Methods 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 5
- 239000013043 chemical agent Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 1
- 238000004401 flow injection analysis Methods 0.000 abstract description 4
- 230000004069 differentiation Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 14
- 238000013461 design Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000009096 changqing Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
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Classifications
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- 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
- E21B43/20—Displacing by water
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- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in well heads
-
- 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
- E21B47/00—Survey of boreholes or wells
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- 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)
- Geophysics (AREA)
- Flow Control (AREA)
Abstract
The invention discloses a one-pump multi-injection profile control device and a profile control method for an oil field, wherein the profile control device comprises a liquid preparation tank and a profile control pump, an outlet of the liquid preparation tank is connected with an inlet of the profile control pump through a liquid inlet pipeline, an outlet of the profile control pump is connected with an input interface of a multi-way pipe fitting, a steady flow water distributor is installed on each output pipeline, each output interface of the multi-way pipe fitting is connected with an output pipeline, and outlet ends of different output pipelines are connected to different water injection wells. This device uses the profile control pump to set up the injection discharge capacity, and the stationary flow injection mandrel carries out the allotment respectively to the water injection well, can satisfy the differentiation demand, carries out the profile control operation respectively to the water injection well. Utilize above-mentioned device to carry out the profile control, carry out the profile control operation to different water injection wells respectively through the export pipeline of difference, improve profile control efficiency, reduce the operating cost.
Description
Technical Field
The invention belongs to the technical field of oil exploitation, and particularly relates to a one-pump multi-injection profile control device and a profile control method for an oil field.
Background
With the development time of oil fields being longer and longer, the water content of crude oil rises gradually and increases gradually, the yield loss is more and more serious, and a profile control process needs to be developed to control the water content rise and use more residual oil. Particularly, in low-permeability oil fields represented by Changqing in recent years, the water injection development effect gradually becomes worse, and large-scale profile control work is carried out for keeping the continuous stable yield of the oil field and the national energy safety, so that the water flooding effect is improved, and the effects of increasing oil and reducing water are achieved.
Because the work load of profile control is continuously increased, more and more profile control devices and technical personnel are needed on site, the traditional single-pump single-injection process mode is shown in figure 1, one plunger pump is used in one water injection well, the contradiction of low efficiency and high cost is gradually highlighted, and the large-scale demand of the oil field for the profile control process is difficult to adapt. Therefore, in combination with the implementation condition of the profile control process and the field test condition, a new profile control device and a new profile control method are needed to be provided, so that the profile control efficiency is improved.
Disclosure of Invention
Aiming at the problems that the original profile control process can only use one profile control pump to carry out profile control operation on one water injection well and cannot meet the requirement of profile control workload of an oil field, the invention provides the one-pump multi-injection profile control device and the method for the oil field, which can carry out profile control operation on two water injection wells simultaneously, improve the working efficiency and reduce the operation cost.
In order to achieve the purpose, the invention provides a one-pump multi-injection profile control device for an oil field, which comprises a liquid preparation tank and a profile control pump, wherein an outlet of the liquid preparation tank is connected with an inlet of the profile control pump through a liquid inlet pipeline, an outlet of the profile control pump is connected with an input interface of a multi-way pipe fitting, a steady flow water distributor is installed on each output pipeline, each output interface of the multi-way pipe fitting is connected with an output pipeline, and outlet ends of different output pipelines are connected to different water injection wells.
Furthermore, the multi-way pipe fitting is a three-way pipe.
Furthermore, a first one-way stop valve is arranged between the outlet of the profile control pump and an input interface of the multi-way pipe fitting.
Further, the outlet of the liquid inlet pipeline is connected with a sampling pipe.
Furthermore, each output line is provided with a flow meter.
Furthermore, a one-way stop valve is installed on each output pipeline.
A profile control method based on the oil field profile control device with one pump and multiple injections comprises the following steps:
and 4, starting the profile control pump and starting profile control operation.
Further, before step 2, detecting the liquid configured in the liquid preparation tank.
Compared with the prior art, the invention has at least the following beneficial technical effects:
the profile control device comprises a plurality of liquid outlet pipelines, the purpose of respectively distributing and injecting a plurality of liquid outlet pipelines is achieved, profile control operation can be simultaneously carried out on a plurality of water injection wells, the working efficiency is improved, and the operation cost is reduced. This device uses the profile control pump to set up the injection discharge capacity, and the stationary flow injection mandrel carries out the allotment respectively to the water injection well, can satisfy the differentiation demand, carries out the profile control operation respectively to the water injection well.
Furthermore, the multi-way pipe fitting is a three-way pipe, and the multi-way pipe fitting is a three-way pipe, namely is connected with two outlet pipelines, so that the control is convenient
Furthermore, install first one-way stop valve between the input interface of profile control pump export and the multi-ported piece, be convenient for.
Furthermore, the outlet of the liquid inlet pipeline is connected with a sampling pipe, so that the prepared liquid in the liquid preparation tank can be detected in real time.
Furthermore, each output pipeline is provided with a flowmeter so as to measure the actual flow of the output pipeline in real time, and if the difference between the actual flow and the set flow exceeds an allowable value, the actual flow is adjusted in time.
Furthermore, a one-way stop valve is installed on each output pipeline, and the working state of each output pipeline can be flexibly controlled.
According to the method, the device is used for profile control, profile control operation is respectively carried out on different water injection wells through different outlet pipelines, profile control efficiency is improved, and operation cost is reduced.
Furthermore, before the step 2, the liquid prepared in the liquid preparation tank is detected, the liquid prepared in the liquid preparation tank can be detected in real time, and when the liquid prepared in the liquid preparation tank is found to be not in accordance with the requirements, the adjustment is carried out in time so as to ensure the profile control quality.
Drawings
FIG. 1 is a schematic view of an original single-pump single-injection profile control device;
FIG. 2 is a schematic view of a profile control apparatus according to example 1 of the present invention;
FIG. 3 is a schematic view of a profile control apparatus according to example 2 of the present invention;
in the drawings: 1. liquid preparation and filling; 2. a profile control pump; 3. an outlet end; 4. a flow stabilizing water distributor; 5. a flow stabilizing water distributor; 6. an outlet end; 7. a first outlet line; 8. a second outlet line; 9. a liquid inlet pipeline; 10. a first one-way stop valve; 11. a second one-way stop valve; 12. a third one-way stop valve; 13. a first flow meter; 14. a second flow meter; 15. a sampling tube; 16. connecting the pipelines.
Detailed Description
In order to make the objects and technical solutions of the present invention clearer and easier to understand. The present invention will be described in further detail with reference to the following drawings and examples, wherein the specific examples are provided for illustrative purposes only and are not intended to limit the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 in specific cases to those skilled in the art.
Example 1
Referring to fig. 2, in order to effectively improve the implementation efficiency of oil field profile control operation and reduce the implementation cost, profile control equipment is improved and upgraded, and the purpose that one outlet is changed into two outlets and injection is respectively distributed is realized by transforming the outlet end of a profile control pump, so that profile control operation can be carried out on two water injection wells simultaneously, the work efficiency is greatly improved, the operation cost is reduced, and the theoretical construction cost can be reduced by 50%.
The terminal only one export of original profile control plunger pump is through connecting tee bend device, turns into two exports to install the stationary flow injection mandrel respectively and realize flow control on two outlet lines, two outlet line are connected to two water injection wells respectively on, according to the profile control scheme of water injection well design, adjust the profile control chemical agent injection volume through the stationary flow injection mandrel, realize two well simultaneous profile control operations.
A one-pump multi-injection profile control device comprises a fluid preparation tank 1 and a profile control pump 2, wherein an outlet of the fluid preparation tank 1 is connected with an inlet of the profile control pump 2 through a fluid inlet pipeline 9, a tee joint device is arranged at an outlet of the profile control pump 2, the tee joint device comprises an inlet, a first outlet and a second outlet, the inlet is communicated with an outlet of the profile control pump 2, the first outlet is connected with a first end of a first outlet pipeline 7, a second end of the first outlet pipeline 7 is a first outlet end, and a first steady flow water distributor 4 is arranged on the first outlet pipeline 7; a second outlet of the three-way device is connected with a first end of a second outlet pipeline 8, a second end of the second outlet pipeline 8 is a second outlet end, and a second steady flow water distributor 5 is installed on the second outlet pipeline 8.
Utilize above-mentioned profile control device to carry out the profile control operation to two water injection wells at the same well site of a certain block, two water injection well injection allocation are 24 sides/day and 36 sides/day respectively, according to the design of profile control scheme, are 24 sides/day to first exit end 3 design injection volume, and second exit end design injection volume is 36 sides/day, and concrete implementation step is:
and 4, starting the profile control pump 2, starting profile control operation, wherein the liquid outlet amount of the two outlet ends can meet the injection allocation requirement of the two water injection wells.
Through the above parameter setting, the profile control operation of two water injection wells is carried out by one profile control pump, only one device and one construction team are needed, and the construction cost can be saved by 50%.
Example 2
Referring to fig. 3, a one-pump multi-injection profile control device comprises a liquid preparation tank 1 and a profile control pump 2, wherein an outlet of the liquid preparation tank 1 is connected with an inlet of the profile control pump 2 through a liquid inlet pipeline 9, an outlet of the profile control pump 2 is connected with an inlet of a connecting pipeline 16, an outlet of the connecting pipeline 16 is connected with a first end of a first outlet pipeline 7 and a first end of a second outlet pipeline 8, a second end of the first outlet pipeline 7 is a first outlet end, and a second end of the second outlet pipeline 8 is a second outlet end. The liquid inlet pipeline 9 is connected with a sampling pipe 15 which can sample and detect the liquid flowing out from the liquid preparation tank 1.
Wherein, a first one-way stop valve 10 is arranged on the connecting pipeline 16, a second one-way stop valve 11, a first steady flow water distributor 4 and a first flowmeter 13 are sequentially arranged on the first outlet pipeline 7 along the liquid flowing direction, and a third one-way stop valve 12, a second steady flow water distributor 5 and a second flowmeter 14 are sequentially arranged on the second outlet pipeline 8 along the liquid flowing direction. A stirrer is arranged in the liquid preparation tank 1.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (8)
1. The utility model provides an oil field is with many notes profile control devices of a pump, its characterized in that, irritate (1) and profile control pump (2) including joining in marriage liquid, the export of joining in marriage liquid and irritate (1) is through the entry linkage of feed liquor pipeline (9) and profile control pump (2), and profile control pump (2) export and the input interface connection of many-way pipe fitting, all install stationary flow water injection mandrel on every output line, every output interface of many-way pipe fitting all is connected with an output pipeline, the exit end of different output pipeline is connected to different water injection wells.
2. The oil field one-pump multi-injection profile control device according to claim 1, wherein the multi-way pipe fitting is a three-way pipe.
3. The oil field is with a pump profile control device that annotates more of according to claim 1, characterized in that, install first check-stop valve (10) between profile control pump (2) export and the input interface of multi-ported tubular member.
4. The oil field is with a pump multiple injection profile control device of claim 1, characterized in that, the inlet line (9) exit is connected with sampling tube (15).
5. The oilfield multi-pump multi-injection profile control device of claim 1, wherein each of the output lines is provided with a flow meter.
6. The oilfield multi-injection profile control device of claim 1, wherein each of the output lines is provided with a one-way shut-off valve.
7. The profile control method of the oil field one-pump multi-injection profile control device based on the claim 1 is characterized by comprising the following steps:
step 1, blending a profile control chemical agent in a blending liquid tank (1);
step 2, setting the discharge capacity of the profile control pump (2) to meet the injection allocation quantity of all water injection wells;
step 3, setting the flow of each steady flow water distributor to meet the injection allocation amount of a water injection well connected with each steady flow water distributor;
and 4, starting the profile control pump (2) and starting profile control operation.
8. The oilfield multi-injection profile control method with one pump according to claim 7, wherein the detection of the liquid prepared in the liquid preparation tank (1) is performed before the step 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010864956.1A CN111963123A (en) | 2020-08-25 | 2020-08-25 | One-pump multi-injection profile control device and method for oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010864956.1A CN111963123A (en) | 2020-08-25 | 2020-08-25 | One-pump multi-injection profile control device and method for oil field |
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| Publication Number | Publication Date |
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| CN111963123A true CN111963123A (en) | 2020-11-20 |
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| CN202010864956.1A Pending CN111963123A (en) | 2020-08-25 | 2020-08-25 | One-pump multi-injection profile control device and method for oil field |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202467759U (en) * | 2012-03-28 | 2012-10-03 | 中国石油天然气股份有限公司 | Double-injection device for profile control |
| CN202832441U (en) * | 2012-09-04 | 2013-03-27 | 中国石油天然气股份有限公司 | Portable type oil-water well water blockage profile control device for low-permeability oil pool |
| CN105019872A (en) * | 2014-04-28 | 2015-11-04 | 中国石油化工股份有限公司 | Online profile control method for oilfield water injection well |
| CN208473783U (en) * | 2018-06-22 | 2019-02-05 | 中国石油天然气股份有限公司 | A kind of profile control and water plugging device |
| CN110552670A (en) * | 2019-08-16 | 2019-12-10 | 中国石油天然气股份有限公司 | Block overall profile adjusting device and method for oil field |
| US10550318B1 (en) * | 2018-10-31 | 2020-02-04 | China University Of Petroleum (East China) | Skid-mounted dispersed particle gel production device, dispersed particle gel and preparation method and use thereof |
-
2020
- 2020-08-25 CN CN202010864956.1A patent/CN111963123A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202467759U (en) * | 2012-03-28 | 2012-10-03 | 中国石油天然气股份有限公司 | Double-injection device for profile control |
| CN202832441U (en) * | 2012-09-04 | 2013-03-27 | 中国石油天然气股份有限公司 | Portable type oil-water well water blockage profile control device for low-permeability oil pool |
| CN105019872A (en) * | 2014-04-28 | 2015-11-04 | 中国石油化工股份有限公司 | Online profile control method for oilfield water injection well |
| CN208473783U (en) * | 2018-06-22 | 2019-02-05 | 中国石油天然气股份有限公司 | A kind of profile control and water plugging device |
| US10550318B1 (en) * | 2018-10-31 | 2020-02-04 | China University Of Petroleum (East China) | Skid-mounted dispersed particle gel production device, dispersed particle gel and preparation method and use thereof |
| CN110552670A (en) * | 2019-08-16 | 2019-12-10 | 中国石油天然气股份有限公司 | Block overall profile adjusting device and method for oil field |
Non-Patent Citations (1)
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| 齐宁等: "调剖堵水剂现场注入工艺技术研究", 《钻采工艺》 * |
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Application publication date: 20201120 |