CN1064109C - Co-well oil-pumping and water-injecting technological system - Google Patents
Co-well oil-pumping and water-injecting technological system Download PDFInfo
- Publication number
- CN1064109C CN1064109C CN98101992A CN98101992A CN1064109C CN 1064109 C CN1064109 C CN 1064109C CN 98101992 A CN98101992 A CN 98101992A CN 98101992 A CN98101992 A CN 98101992A CN 1064109 C CN1064109 C CN 1064109C
- Authority
- CN
- China
- Prior art keywords
- water
- oil
- pit shaft
- well
- seabed
- 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 - Fee Related
Links
Images
Landscapes
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The present invention provides a co-well oil-pumping and water-injecting technological system which relates to a technological system for injecting water and pressurizing an oil layer of a sea bottom in an offshore oil exploiting technology. The present invention is composed of a well barrel, a submersible electric pump, a water-pumping pipe pillar and a water-injecting pipe pillar, wherein the well barrel extends into the oil layer of the sea bottom after penetrating through the water layer of the sea bottom from an offshore oil exploiting platform, the well head and the well bottom of the well barrel are both sealed, a water-pumping hole and a water-injecting hole are respectively arranged on barrel walls corresponding to the water layer and the oil layer, a sand-proof filter is arranged in the well barrel at the inner side of the water-pumping hole, and a packer is arranged in the well barrel between the water layer and the oil layer. Water in the water layer is injected into the co-well oil layer through the water-pumping pipe pillar and the water-injecting pipe pillar after being filtered by the sand-proof filter and being pressurized by the submersible electric pump.
Description
The present invention relates to be used in a kind of offshore oil oil production technology the injection system of taking out to seabed oil-bearing stratum flooding supercharging.
In the petroleum recovering technology,, need water filling in the oil reservoir of seabed constantly at sea for improving the pressure of oil reservoir.In the prior art, to the seabed oil-bearing stratum flooding is to realize by the flood pattern that is arranged on the offshore production platform, the water filling water source mainly is seawater or production waste, in order to guarantee injection water quality, no matter be to be the water filling water source for the water filling water source or with the production waste, all the water flood treatment system be set so that seawater or sewage are handled on the platform at sea with the seawater.The Seawater Treatment system is a quite complicated system, and its capital equipment has the profit lift pump, thickness strainer, deoxidation tower and water-delivery pump and corresponding monitoring system and other ancillary service.Sewage disposal system is simpler than Seawater Treatment system, but the sewage quality after handling is difficult to guarantee the as easy as rolling off a log obstruction that causes water injection well.Seawater after the water flood treatment system handles or sewage inject the seabed oil reservoir by seabed waterline and flood pattern, in other words, also must lay huge seabed waterline between water treatment platform and production platform, its construction period and construction costs are all well imagined.Relative water treatment system, flood pattern is fairly simple, and its capital equipment is water filling pit shaft, water injecting pump and water injection string.The water filling pit shaft is formed by connecting by the more piece petroleum casing pipe, extend into the oil reservoir of seabed from offshore production platform always, it is sealing in two ends up and down, penetrated water injection hole on the barrel corresponding to the oil reservoir place, water injection string is installed in the water filling pit shaft and extend into oil reservoir place, seabed by the location sealer, utilizes the water injecting pump supercharging after water injection string injects the seabed oil reservoir from the water filling (seawater or sewage after promptly handling) of seabed waterline.
Obviously, above-mentioned flood pattern is a very complicated huge system, and not only construction period is very long, and construction costs is also very high, has seriously restricted the raising of offshore oil exploitation economic benefit.
Purpose of the present invention promptly is flood pattern of the prior art is improved, and simplifying flood pattern greatly, thereby shortens its construction period, reduces construction costs, finally improves the offshore oil exploitation economic benefit.
To achieve these goals, the present invention with the seabed water layer as the water filling water source and utilize pit shaft, submersible pump and draw water tubing string and water injection string are formed a kind of co-well oil-pumping and water-injecting system.Pit shaft is formed by connecting by the more piece sleeve pipe, after passing the seabed water layer, offshore production platform stretches into the oil reservoir of seabed, its well head and shaft bottom are sealing, suction eye and water injection hole have been penetrated respectively on the barrel corresponding to seabed water layer and seabed oil reservoir place, in the inboard pit shaft of suction eye sand filter is installed, the packer that is used for packing water layer and oil reservoir is installed in the pit shaft between water layer and the oil reservoir; The tubing string that draws water passes in the pit shaft that stretches into the water layer top after well head seals and with the submersible pump outlet and is communicated with, water injection string passes and stretches in the pit shaft after the well head sealing and pass packer and stretch into the oil reservoir place, its upper end is communicated with the tubing string that draws water by flow meter, adopts the sealer sealing of water layer location between water injection string and the packer; Submersible pump is minor diameter, big discharge capacity submersible pump, is fixed in the pit shaft oil jacket annular space of the tubing string lower end of drawing water.
For the co-well oil-pumping and water-injecting system of composition like this, because the water quality of seabed water layer is better, itself seals system again, therefore needn't set up complicated water treatment system, can reach the injection water quality requirement and only need in the inboard pit shaft of suction eye sand filter to be installed.Owing to be co-well oil-pumping and water-injecting, thereby also needn't build huge seabed waterline.Obviously, the co-well oil-pumping and water-injecting system is greatly simplified than existing flood pattern, not only can shorten construction period greatly, and construction costs also can reduce greatly, thereby can significantly improve the economic benefit of offshore oil exploitation.Be described in further detail below in conjunction with the technical characterictic of specific embodiment co-well oil-pumping and water-injecting of the present invention system.
Accompanying drawing 1 is co-well oil-pumping and water-injecting system schematic of the present invention.
With reference to the accompanying drawings 1, co-well oil-pumping and water-injecting of the present invention system mainly is made up of pit shaft, the tubing string that draws water, water injection string and submersible pump.Pit shaft 1 is formed by connecting by the more piece sleeve pipe, after passing the seabed water layer, offshore production platform stretches into the oil reservoir of seabed, its well head and shaft bottom are sealing, suction eye 2 and water injection hole 3 have been penetrated on the barrel corresponding to water layer and oil reservoir place respectively, in the inboard pit shaft of suction eye sand filter 4 is installed, the packer 5 that is used for packing water layer and oil reservoir is installed in the pit shaft between water layer and the oil reservoir.The tubing string 6 that draws water stretches in the pit shaft of water layer top after passing well head sealing 7, and its lower end is communicated with the submersible pump outlet.Water injection string 8 pass stretch in the pit shaft after the well head sealing 7 and pass packer 5 after stretch into the oil reservoir place, adopted sealer 10 sealings of water layer location between water injection string 8 and the packer 5, be communicated with the tubing string 6 that draws water by flow meter 9 on the water injection string.Submersible pump 11 is a minor diameter, and big discharge capacity submersible pump is fixed in the oil jacket annular space of tubing string 6 lower ends of drawing water.System when operation, the water in the water layer through sand filter filter and by the submersible pump supercharging after, inject with the well oil reservoir through draw water tubing string and water injection string, to realize seabed oil-bearing stratum flooding supercharging.
Co-well oil-pumping and water-injecting of the present invention system forms simple, short construction period, construction costs can reduce more than 60%, can significantly improve the offshore oil exploitation economic benefit, in being specially adapted to the offshore oil oil production technology, to the oil-bearing stratum flooding supercharging of seabed, also can be used in the land oil production technology to the oil-bearing stratum flooding supercharging.
Claims (1)
1, is used for co-well oil-pumping and water-injecting system in a kind of offshore oil oil production technology, it is characterized in that this system is made up of pit shaft, submersible pump and draw water tubing string and water injection string to seabed oil-bearing stratum flooding supercharging; Described pit shaft is formed by connecting by the more piece sleeve pipe, after passing the seabed water layer, offshore production platform stretches into the oil reservoir of seabed, its well head and shaft bottom are sealing, suction eye and water injection hole have been penetrated respectively on the barrel corresponding to seabed water layer and seabed oil reservoir place, in the inboard pit shaft of suction eye sand filter is installed, the packer that is used for packing water layer and oil reservoir is installed in the pit shaft between water layer and the oil reservoir; The described tubing string that draws water passes in the pit shaft that stretches into the water layer top after well head seals and with the submersible pump outlet and is communicated with; Described water injection string passes and stretches in the pit shaft after the well head sealing and pass packer and stretch into the oil reservoir place, and its upper end is communicated with the tubing string that draws water by flow meter, adopts water layer to locate sealer between water injection string and the packer and seals; Described submersible pump is a minor diameter, and big discharge capacity submersible pump is fixed in the pit shaft oil jacket annular space of the tubing string lower end of drawing water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98101992A CN1064109C (en) | 1998-05-28 | 1998-05-28 | Co-well oil-pumping and water-injecting technological system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98101992A CN1064109C (en) | 1998-05-28 | 1998-05-28 | Co-well oil-pumping and water-injecting technological system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1199129A CN1199129A (en) | 1998-11-18 |
| CN1064109C true CN1064109C (en) | 2001-04-04 |
Family
ID=5217064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98101992A Expired - Fee Related CN1064109C (en) | 1998-05-28 | 1998-05-28 | Co-well oil-pumping and water-injecting technological system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1064109C (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2194572A (en) * | 1986-08-29 | 1988-03-09 | Elf Aquitaine | Downhole separation of fluids in oil wells |
| CA2031813A1 (en) * | 1989-12-08 | 1991-06-09 | Steve L. Vasicek | Method of flowing viscous hydrocarbons in a single well injection/production system |
| US5123488A (en) * | 1991-06-24 | 1992-06-23 | Mobil Oil Corporation | Method for improved displacement efficiency in horizontal wells during enhanced oil recovery |
| CA2062258A1 (en) * | 1991-03-18 | 1992-09-19 | Takao Ebinuma | Method for dumping and disposing of carbon dioxide gas and apparatus therefor |
| CN2124306U (en) * | 1992-04-29 | 1992-12-09 | 北京市西城区新开通用实验厂 | Well oil and water separated oil production apparatus |
| CN1087157A (en) * | 1992-11-14 | 1994-05-25 | 北京市西城区新开通用试验厂 | The free water of high-water-cut oil-producing well is the re-injection device on the spot |
| US5547021A (en) * | 1995-05-02 | 1996-08-20 | Raden; Dennis P. | Method and apparatus for fluid production from a wellbore |
-
1998
- 1998-05-28 CN CN98101992A patent/CN1064109C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2194572A (en) * | 1986-08-29 | 1988-03-09 | Elf Aquitaine | Downhole separation of fluids in oil wells |
| CA2031813A1 (en) * | 1989-12-08 | 1991-06-09 | Steve L. Vasicek | Method of flowing viscous hydrocarbons in a single well injection/production system |
| CA2062258A1 (en) * | 1991-03-18 | 1992-09-19 | Takao Ebinuma | Method for dumping and disposing of carbon dioxide gas and apparatus therefor |
| US5123488A (en) * | 1991-06-24 | 1992-06-23 | Mobil Oil Corporation | Method for improved displacement efficiency in horizontal wells during enhanced oil recovery |
| CN2124306U (en) * | 1992-04-29 | 1992-12-09 | 北京市西城区新开通用实验厂 | Well oil and water separated oil production apparatus |
| CN1087157A (en) * | 1992-11-14 | 1994-05-25 | 北京市西城区新开通用试验厂 | The free water of high-water-cut oil-producing well is the re-injection device on the spot |
| US5547021A (en) * | 1995-05-02 | 1996-08-20 | Raden; Dennis P. | Method and apparatus for fluid production from a wellbore |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1199129A (en) | 1998-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5497832A (en) | Dual action pumping system | |
| CN201241664Y (en) | Pipe column for jet pump oil extraction and water injection integrated process | |
| RU2013156617A (en) | METHOD FOR INCREASING HYDROCARBON EXTRACTION | |
| CN201963231U (en) | Subsea mud suction system for realizing riser-free mud recovery drilling | |
| CN102080510A (en) | Submarine mud suction system and method for realizing marine riser-free mud reclamation well drilling | |
| CN201843600U (en) | SAGD (Steam Assisted Gravity Drainage) mechanical lifting circulating preheating equipment | |
| CN101078336A (en) | Low-pressure well negative pressure continuous sand washing technique | |
| CN108119100B (en) | Oil well lifting system and oil pumping method thereof | |
| CN114278271B (en) | Composite circulating well system and using method | |
| CN215672164U (en) | Jet pump lifting process pipe column capable of being repeatedly acidified in offshore oil field | |
| CN116263084A (en) | Drilling and production system and method for offshore natural gas hydrate development | |
| EA005614B1 (en) | Gas turbine for oil lifting | |
| CN206071543U (en) | A kind of pumping drainage system for being applied to the natural gas well | |
| CN1064109C (en) | Co-well oil-pumping and water-injecting technological system | |
| RU2132455C1 (en) | Method and pumping unit for injecting water into injection well | |
| CN107461182A (en) | Layering fracturing sand control method | |
| CN103470221A (en) | Underbalance tubing, no-killing gas lifting, shaft pumping and pump detecting combined method | |
| RU2317407C1 (en) | Well operation method | |
| CN1354317A (en) | Downhole production-injection method and integrated pipe string | |
| CN114278250B (en) | Marine low-pressure gas well fixed-point dragging continuous liquid drainage pipe column and liquid drainage method thereof | |
| Verbeek et al. | Downhole separator produces less water and more oil | |
| CN113530491B (en) | Cable packer, same-well production and injection process pipe column and same-well production and injection system | |
| CN211230399U (en) | Shale gas composite discharging and mining process pipe column | |
| CN113404468A (en) | Novel gas-liquid separate production pipe column for underground drainage and gas production of sulfur-containing gas well | |
| RU2188301C1 (en) | Method of preparation and performance of well servicing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20010404 Termination date: 20150528 |
|
| EXPY | Termination of patent right or utility model |