CN1448614A - Oil extracting process and apparatus using oil field original well water - Google Patents
Oil extracting process and apparatus using oil field original well water Download PDFInfo
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- CN1448614A CN1448614A CN 02114493 CN02114493A CN1448614A CN 1448614 A CN1448614 A CN 1448614A CN 02114493 CN02114493 CN 02114493 CN 02114493 A CN02114493 A CN 02114493A CN 1448614 A CN1448614 A CN 1448614A
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- well water
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Abstract
The identical-well water-extracting and water-injecting technique is one new oil field water injecting technique suitable for especially use in small oil field. The main facilities include a single well pipe column comprising mineshaft, electric submerged pump set, pressurized flow rate transducer, sand-isolating filter, packer, etc. and a ground part comprising electric control box, frequency variator, water injection parameter displaying instrument, etc. The electric submerged pump set extracts water from the upper stratum near the mineshaft, pressurizes and injects the pressurized water to the lower water-injecting layer, i. e., oily layer in the identical well. The technological process is simple, advanced and low in cost.
Description
The present invention relates to a kind of water injection technology and equipment of the onshore oil field that is applicable to, particularly small-block oilfield.
For small-block oilfield and outlying wellblock, water flooding regime puts into operation routinely, needs to dig a well, builds a station and lay the line etc., certainly will cause cost of crude oil production too high, and is low in economic efficiency, even directly influences the evaluation of the whole exploitation in such block oil field meaning.Though domesticly be useful on a kind of of offshore oilfield and take out injection system with well water, technical scheme as the patent No.: 98206148.X and number of patent application 98101992.7, but, most conventional oil wells of onshore oil field (5 " sleeve pipe) are difficult to carry out because it takes the two-tube two time patterns of big hole diameter (7 " sleeve pipe).
The objective of the invention is: provide this well water of a kind of oil field to adopt the notes Processes and apparatus, its technological process is simple, and is advanced in performance, and it is with low cost to put into operation, the economic benefit of small-block oilfield exploitation can be increased substantially, and the waterflooding extraction of oil field conventional oil well can be suitable for.
Technical scheme of the present invention is: design this well water of a kind of oil field and adopt the notes Processes and apparatus, it is characterized in that: single time tubing string is installed in pit shaft, is taked the water of the top water layer on stratum in this well, the bottom oil reservoir in this well is injected in airtight supercharging; The power unit is between the strainer and the packer on the implanted layer under the water layer of top, pipeline below the power unit connects sensor, and sensor reaches down-hole pressure, flow signal on the ground controlling organization by the remote transfer signal line and controls, regulates, shows.
Described sensor can be fixed on the pipeline between power unit and the packer.
Described controlling organization is electrically connected to form by frequency converter, booster, display instrument, control cabinet.
Described single time tubing string can hang on the simple wellhead.
Described power unit can be an inversion type submersible pump unit.
Described strainer can be every the sand fine filter.
Described equipment is made of tail pipe, packer, sensor, power unit, strainer, tubing string socket, and hangs on the simple wellhead after being in turn connected into single time tubing string from top to bottom.
Characteristics of the present invention are: its adapts to common (5 " sleeve pipe) oil-water well, adopts single time flow process of single tube; take this formation water of aboveground by the power unit; be injected into the bottom oil reservoir of this well after the airtight supercharging; can not realize that ground Ben Jing adopts the purpose of water water filling, and its water injection parameter can monitor in ground and regulate and control fully.Technological process is simple, and is advanced in performance, and it is with low cost to put into operation, and can increase substantially the economic benefit of small-block oilfield exploitation, and can be suitable for the waterflooding extraction of oil field conventional oil well.
The present invention will be further described below in conjunction with the embodiment accompanying drawing.
Accompanying drawing 1 is that this well water of embodiment is adopted notes Processes and apparatus structural representation.
Among the figure: 1, simple wellhead; 2, tubing string; 3, pressure flow display instrument; 4, power cable; 5, adopt water layer; 6, electric pump unit; 7, remote transfer signal line; 8, pressure flow sensor; 9, packer; 10, tail pipe; 11, water filling layer.
As shown in the figure: take the method for perforation to penetrate to drive a well in the tube corresponding top to adopt water layer and bottom oil reservoir, water filling layer 11 is tail pipe 10, packer 9, pressure flow sensor 8, electric pump unit 6, is in turn connected into single tube from top to bottom and injects well and hang on the simple wellhead 1 by socket tubing string 2.Servicing unit mainly comprises every sand fine filter, cartridge, tail pipe 10, remote transfer signal line 7 and power cable 4.Ground installation mainly comprises pressure flow display instrument 3, junction box, frequency converter, electric control box etc.Electric pump unit 6 adopt on top under the water layer 5 between the packer 9 on sand fine filter and the water filling layer 11, its top is provided with cartridge, every servicing units such as sand fine filters, respectively will be from after the water desanding of this aboveground water layer, filtering, suck by electric pump unit 6 again, after its airtight pressurization, inject the oil reservoir of this down-hole portion.Electric pump unit 6 is designed to inversion type.Pressure flow sensor 8 is equipped with in electric pump unit 6 exits, its pressure flow signal is reached on the ground pressure flow Displaying Meter 3 by remote transfer signal line 7, water injection pressure and water injection rate in order to monitoring downhole electric pump unit 6, and regulate near it frequency converter in view of the above, just can accurately set up water injection rate, not only satisfy the water injection technology requirement but also reached purpose of saving by the injection allocation requirement.
Of the present invention well water is adopted notes technology system, and not only technological process is simple, and advanced in performance, it is with low cost to put into operation, and also can increase substantially the economic benefit of small-block oilfield exploitation, and owing to all can implement in the conventional oil well of oil field, uses convenient, flexible.Be specially adapted to small-block oilfield, outlying oil field, also be applicable to the oil-bearing stratum flooding of offshore oil production technology.
Claims (7)
1, this well water of oil field is adopted the notes Processes and apparatus, it is characterized in that: single time tubing string is installed in pit shaft, is taked the water of the top water layer on stratum in this well, the bottom oil reservoir in this well is injected in airtight supercharging; The power unit is between the packer on strainer under the water layer of top and the water filling layer, pipeline below the power unit connects sensor, and sensor reaches down-hole pressure, flow signal on the ground controlling organization by the remote transfer signal line and controls, regulates, shows.
2, this well water of oil field according to claim 1 is adopted the notes Processes and apparatus, it is characterized in that: described sensor can be fixed on the pipeline between power unit and the packer.
3, this well water of oil field according to claim 1 is adopted the notes Processes and apparatus, and it is characterized in that: described controlling organization is electrically connected to form by frequency converter, booster, display instrument, control cabinet.
4, this well water of oil field according to claim 1 is adopted the notes Processes and apparatus, and it is characterized in that: described single time tubing string can hang on the simple wellhead.
5, this well water of oil field according to claim 1 is adopted the notes Processes and apparatus, and it is characterized in that: described power unit can be an inversion type submersible pump unit.
6, this well water of oil field according to claim 1 is adopted the notes Processes and apparatus, and it is characterized in that: described strainer can be every the sand fine filter.
7, this well water of oil field according to claim 1 is adopted the notes Processes and apparatus, it is characterized in that: equipment is made of tail pipe, packer, sensor, power unit, strainer, tubing string socket, and hangs on the simple wellhead after being in turn connected into single time tubing string from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02114493 CN1448614A (en) | 2002-04-02 | 2002-04-02 | Oil extracting process and apparatus using oil field original well water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02114493 CN1448614A (en) | 2002-04-02 | 2002-04-02 | Oil extracting process and apparatus using oil field original well water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1448614A true CN1448614A (en) | 2003-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02114493 Pending CN1448614A (en) | 2002-04-02 | 2002-04-02 | Oil extracting process and apparatus using oil field original well water |
Country Status (1)
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| CN (1) | CN1448614A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089571A (en) * | 2014-05-24 | 2015-11-25 | 天津大港油田钻采技术开发公司 | Water injection string without surface flow and water injection technological method of water injection string |
| CN107035349A (en) * | 2017-06-10 | 2017-08-11 | 山东恒驰石油装备有限责任公司 | A kind of interlayer pressure difference cyclic water stimulation pumping pipe string |
| CN108071376A (en) * | 2016-11-17 | 2018-05-25 | 中国石油天然气股份有限公司 | Injection and production string in coal-bed gas well |
-
2002
- 2002-04-02 CN CN 02114493 patent/CN1448614A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089571A (en) * | 2014-05-24 | 2015-11-25 | 天津大港油田钻采技术开发公司 | Water injection string without surface flow and water injection technological method of water injection string |
| CN108071376A (en) * | 2016-11-17 | 2018-05-25 | 中国石油天然气股份有限公司 | Injection and production string in coal-bed gas well |
| CN107035349A (en) * | 2017-06-10 | 2017-08-11 | 山东恒驰石油装备有限责任公司 | A kind of interlayer pressure difference cyclic water stimulation pumping pipe string |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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