CN201013344Y - Corollary equipment for bottom water reservoir potential equilibrium dislodging - Google Patents
Corollary equipment for bottom water reservoir potential equilibrium dislodging Download PDFInfo
- Publication number
- CN201013344Y CN201013344Y CNU2007201034049U CN200720103404U CN201013344Y CN 201013344 Y CN201013344 Y CN 201013344Y CN U2007201034049 U CNU2007201034049 U CN U2007201034049U CN 200720103404 U CN200720103404 U CN 200720103404U CN 201013344 Y CN201013344 Y CN 201013344Y
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- oil
- water
- layer
- production tubing
- perforation
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Abstract
The utility model relates to a matching equipment for potential balance mining of bottom water oil reservoir which can inhibit bottom water coning of oil production well and improve recovery factor and development effect of bottom water oil reservoir and consists of an oil production tubing, a water production tubing and a separation device; the bottom of the oil production tubing gets through the oil layer and the water layer and is fixed at the desanding layer, the wall of the oil production tubing is provided with a water layer perforation at the middle of the water layer, the wall of the oil production tubing is provided with an oil layer perforation at the upper part of the oil layer, the water production tubing is arranged in the oil production tubing, the lower port gets through the oil layer and is located above the water layer perforation of the bottom water layer, and the separation device is located at the oil-water interface between the oil production tubing and the water production tubing; the application of the equipment can improve oil well production and extend service life of the oil well; with good control, outputted crude oil need not oil-water separation and can be directly stored in oil storage tank; if the salinity of the outputted formation water is low enough, the formation water can be directly discharged without process; when water district energy is limited, the outputted water can be injected back to the bottom water layer after processing to compensate formation pressure. The utility model is particularly fit for offshore production.
Description
Technical field
The utility model relates to a kind of inhibition producing well bottom water coning, the corollary equipment of the recovery ratio of raising bottom water reservoir and the bottom water reservoir gesture balanced exploitation of development effectiveness.
Background technology:
Bottom water coning is the ubiquitous problem of bottom water reservoir.In case end water enters the shaft bottom, the moisture of oil well will rise rapidly, and be very fast owing to the deficiency in economic performance closing well of having to, and causes recovery ratio low.Therefore, avoiding bottom water coning is the key problem in technology that exploitation enlivens bottom water reservoir.In order to reach this purpose, carried out various trials in the Development Practice, comprise as far as possible away from the oil-water interfaces perforation, inject material manufacture of intraocular dividing plates such as gel, polymer on oil-water interfaces top, keep oil well under the subcritical rate of oil production, to exploit etc.But these measures can only keep the relatively stable of oil-water interfaces over a period to come, have not only limited the production capacity of oil well, and can not fundamentally solve the bottom water coning problem.Bottom water reservoir gesture balanced exploitation technology can make the oil well exploitation at a high speed under low moisture even anhydrous situation in the bottom water reservoir, is a kind of effective method of exploitation bottom water reservoir.
The utility model content:
The purpose of this utility model is the corollary equipment of a kind of bottom water reservoir gesture balanced exploitation of design, by oil, moisture adopts, when oil well is produced with higher output, can also keep oil-water interfaces basicly stable or mild on move, suppress bottom water coning effectively, realize efficient exploitation bottom water reservoir.
Corollary equipment of the present utility model is to be made of flow string, water gathering tube and separator, the bottom that it is characterized in that flow string passes oil reservoir and water layer is fixed on the desilting layer, on the middle part of water layer oil recovery tube wall, be provided with the water layer perforation, on the top of oil reservoir oil recovery tube wall, be provided with the oil reservoir perforation, water gathering tube is arranged in flow string, lower port is passed the top that oil-bearing layer is positioned at bottom aquifer water layer perforation, the oil-water interfaces place of separator between flow string and water gathering tube, during opening well and making production, more than oil-water interfaces, recover the oil, below oil-water interfaces, adopt water.In addition, oil sets annular space also can be used as one of them liquid sucking tube post and exploits.
The invention effect
Compare with conventional method, this method is equivalent to increase in the pool remittance, has changed in the stratum in the discharge of this water, the particularly distribution of nearly well band gesture, thereby has changed the flow field of near wellbore zone fluid.Because the gesture that pool product water forms is opposite with the gesture direction that oil district produce oil forms, by reasonable adjusting oil recovery and drainage speed, the gesture balance that the gesture He You district produce oil that can make the pool produce water formation forms, divide stream interface thereby make oil-water interfaces become a comparatively stable profit, make oil-water interfaces basicly stable or mild on move.This method both can improve oil well output, can prolong the lifetime of oil well again, if control well, the crude oil of output need not carry out water-oil separating, directly sends into oil storage tank; If the salinity in the formation water of output is enough low, then can handle direct discharging.When the finite energy of pool, can be being recycled in the bottom aquifer after the output water treatment, so that replenish strata pressure.This method is especially attractive for offshore oil production.
Description of drawings
The corollary equipment structural representation of Fig. 1 bottom water reservoir gesture balanced exploitation.
Wherein: 1, flow string 2, water gathering tube 3, oil reservoir perforation 4, separator 5, water layer perforation 6, sand bed 7, water layer 8, oil-water interfaces 9, oil reservoir
The specific embodiment
With reference to the accompanying drawings the corollary equipment structure of bottom water reservoir gesture balanced exploitation described in the utility model is carried out detailed narration below.
Equipment is to be made of flow string (1), water gathering tube (2) and separator (4), oil reservoir (9) is passed in the bottom of flow string and water layer (7) is fixed on desilting layer (6), on the middle part of water layer oil recovery tube wall, be provided with water layer perforation (5), on the top of oil reservoir oil recovery tube wall, be provided with oil reservoir perforation (3), water gathering tube is arranged in flow string, lower port is passed the top that oil-bearing layer is positioned at bottom aquifer water layer perforation, the oil-water interfaces place of separator (4) between flow string and water gathering tube.
Claims (1)
1. the corollary equipment of a bottom water reservoir gesture balanced exploitation, be to constitute by flow string, water gathering tube and separator, it is characterized in that: the bottom of flow string passes oil reservoir and water layer is fixed on the desilting layer, on the middle part of water layer oil recovery tube wall, be provided with the water layer perforation, on the top of oil reservoir oil recovery tube wall, be provided with the oil reservoir perforation, water gathering tube is arranged in flow string, and lower port is passed the top that oil-bearing layer is positioned at bottom aquifer water layer perforation, the oil-water interfaces place of separator between flow string and water gathering tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201034049U CN201013344Y (en) | 2007-01-31 | 2007-01-31 | Corollary equipment for bottom water reservoir potential equilibrium dislodging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201034049U CN201013344Y (en) | 2007-01-31 | 2007-01-31 | Corollary equipment for bottom water reservoir potential equilibrium dislodging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201013344Y true CN201013344Y (en) | 2008-01-30 |
Family
ID=39025130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201034049U Expired - Lifetime CN201013344Y (en) | 2007-01-31 | 2007-01-31 | Corollary equipment for bottom water reservoir potential equilibrium dislodging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201013344Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101265796B (en) * | 2008-04-24 | 2011-05-11 | 中国海洋石油总公司 | Same well dual-pumping system |
| CN102220856A (en) * | 2011-06-09 | 2011-10-19 | 关俊华 | Balancing oil extractor |
| CN102322243A (en) * | 2011-06-09 | 2012-01-18 | 关俊华 | Oil extraction method by regulating and controlling interface of oil and water |
| CN102434151A (en) * | 2011-12-19 | 2012-05-02 | 中国海洋石油总公司 | Bottom-water coning dynamic simulation experiment device in bottom-water oil reservoir development and simulation system |
| CN115059445A (en) * | 2022-06-13 | 2022-09-16 | 成都理工大学 | Method and system for geological sequestration of carbon dioxide in depleted reservoirs |
-
2007
- 2007-01-31 CN CNU2007201034049U patent/CN201013344Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101265796B (en) * | 2008-04-24 | 2011-05-11 | 中国海洋石油总公司 | Same well dual-pumping system |
| CN102220856A (en) * | 2011-06-09 | 2011-10-19 | 关俊华 | Balancing oil extractor |
| CN102322243A (en) * | 2011-06-09 | 2012-01-18 | 关俊华 | Oil extraction method by regulating and controlling interface of oil and water |
| CN102434151A (en) * | 2011-12-19 | 2012-05-02 | 中国海洋石油总公司 | Bottom-water coning dynamic simulation experiment device in bottom-water oil reservoir development and simulation system |
| CN102434151B (en) * | 2011-12-19 | 2015-04-29 | 中国海洋石油总公司 | Bottom-water coning dynamic simulation experiment device in bottom-water oil reservoir development and simulation system |
| CN115059445A (en) * | 2022-06-13 | 2022-09-16 | 成都理工大学 | Method and system for geological sequestration of carbon dioxide in depleted reservoirs |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080130 |