CN201013344Y - Supporting equipment for bottom water oil reservoir potential balance mining - Google Patents
Supporting equipment for bottom water oil reservoir potential balance mining 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
- Authority
- CN
- China
- Prior art keywords
- oil
- water
- layer
- production pipe
- perforation
- 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.)
- Expired - Lifetime
Links
Landscapes
- Removal Of Floating Material (AREA)
Abstract
The utility model relates to a bottom water reservoir potential balance mining corollary equipment for inhibiting bottom water coning of an oil production well and improving the recovery ratio and the development effect of a bottom water reservoir, which consists of an oil production pipe, a water production pipe and a separator, wherein the bottom of the oil production pipe passes through an oil layer and a water layer to be fixed on a sand-sinking layer, a water layer perforation is arranged on the middle oil production pipe wall of the water layer, an oil layer perforation is arranged on the upper oil production pipe wall of the oil layer, the water production pipe is arranged in the oil production pipe, a lower port passes through the oil layer to be arranged above the bottom water layer perforation, the separator is arranged at an oil-water interface between the oil production pipe and the water production pipe, the oil well yield can be improved by applying the equipment, the life span of the oil well is prolonged, the control is good, the produced crude oil does not need to carry out oil-water separation, the crude oil is directly sent into an, the produced water can be reinjected into a bottom water layer after being treated to supplement the formation pressure, and the method is particularly suitable for offshore oil 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 | Supporting equipment for bottom water oil reservoir potential balance mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201034049U CN201013344Y (en) | 2007-01-31 | 2007-01-31 | Supporting equipment for bottom water oil reservoir potential balance mining |
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 | Supporting equipment for bottom water oil reservoir potential balance mining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201013344Y (en) |
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 |
| 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 |
| CN115704292A (en) * | 2021-08-11 | 2023-02-17 | 中国石油天然气股份有限公司 | Water drive development process method utilizing self bottom water energy |
-
2007
- 2007-01-31 CN CNU2007201034049U patent/CN201013344Y/en not_active Expired - Lifetime
Cited By (7)
| 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 |
| CN115704292A (en) * | 2021-08-11 | 2023-02-17 | 中国石油天然气股份有限公司 | Water drive development process method utilizing self bottom water energy |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103189596B (en) | Upgoing drainholes for reducing liquid-loading in gas wells | |
| CN102704902B (en) | Natural gas hydrate exploiting method | |
| CN201013344Y (en) | Supporting equipment for bottom water oil reservoir potential balance mining | |
| CN101787854B (en) | Subsection well completion system of bottom water reservoir horizontal well | |
| CN102493788A (en) | Drainage gas recovery method for high-coal-rank coal bed gas well | |
| WO2007124471A3 (en) | Enhanced liquid hydrocarbon recovery by miscible gas water drive | |
| CN1786416A (en) | Method for extracting hydrate on bottom of sea by deep earth heart water circulation | |
| CN102392625A (en) | Gravity drainage assisted oil extraction method and oil extraction system | |
| CN110424912A (en) | Method, the row's of returning service unit and the completion structure of tubing string replacement filling layer are not changed | |
| CN106978993A (en) | A kind of medium and deep sandstone underground heat horizontal well recovery method and structure | |
| US8365819B2 (en) | Method of redistributing well bore fluid | |
| CN109915082A (en) | A device and method for exploiting offshore heavy oil reservoirs | |
| CN108915649A (en) | A kind of oil reservoir pressure is stifled to drive technology pattern preferred method | |
| CN104033137A (en) | Method for improving fault block oil reservoir recovery efficiency by utilizing oilfield wastewater | |
| CN114293958B (en) | Method for efficiently developing heavy oil reservoir containing bottom water by adopting double horizontal wells | |
| CN105134151B (en) | Hot nitrogen energization Viscosity Reduction And Stimulation | |
| CN108915643A (en) | Doubly-linked drifting structure and method for exploiting ocean hydrate | |
| CN209778493U (en) | A Downhole Filtration-Sedimentation Device of Loose Sandstone Heat Storage Geothermal Exploitation Well | |
| CN110005386B (en) | Geothermal resource same-well injection-production cyclic utilization method and device | |
| CN208057104U (en) | The well pattern structure of deep layer bulk fractured reservoir is developed for gas drive | |
| CN201851011U (en) | Device for mining coal bed gas by drilling well in zero radius and in radial direction | |
| CN201771477U (en) | Electric submersible pump production pipe string capable of filtering and discharging sand | |
| CN113803037B (en) | Deep low-permeability thickened oil fluidity regulation and control displacement development method | |
| CN109915085B (en) | Gas-water balance-based natural gas hydrate exploitation method | |
| CN105422067B (en) | The method of active water displacement exploiting coal bed methane |
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 |