CN202273617U - Floating oil recovery device in drilling fluid of offshore drilling - Google Patents
Floating oil recovery device in drilling fluid of offshore drilling Download PDFInfo
- Publication number
- CN202273617U CN202273617U CN2011204291296U CN201120429129U CN202273617U CN 202273617 U CN202273617 U CN 202273617U CN 2011204291296 U CN2011204291296 U CN 2011204291296U CN 201120429129 U CN201120429129 U CN 201120429129U CN 202273617 U CN202273617 U CN 202273617U
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- China
- Prior art keywords
- drilling fluid
- oil
- drilling
- outlet
- water separator
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Abstract
The utility model relates to a floating oil recovery device in drilling fluid of offshore drilling. The device comprises a drilling fluid circulating pipeline, a centrifuge, a drilling fluid sand basin, a movable joint, a PVC (Polyvinyl Chloride) pipeline, a diaphragm water pump, an oil-water separator, an oil collection tank and a drilling fluid storage tank. An inlet of the drilling fluid sand basin is connected with an outlet of the drilling fluid centrifuge, the upper part of the drilling fluid sand basin is connected with the movable joint, and an outlet of the drilling fluid sand basin is connected with the drilling fluid circulating pipeline. An inlet of the diaphragm water pump is connected with the PVC pipeline; the tail end of the PVC pipeline is provided with the movable joint which is placed on the upper part of the drilling fluid sand basin; and an outlet of the diaphragm water pump is connected with the oil-water separator through the PVC pipeline. The device has a simple structure and is convenient for field arrangement; and a coalescence medium net in the oil-water separator can be continuously used after being disassembled and cleaned. Apart from purchasing cost which is invested in the diaphragm water pump, the PVC pipeline and the oil-water separator at one time, any cost is not produced during use of the floating oil recovery device; and the recovered oil can produce economic benefit.
Description
Technical field
The utility model relates to the offshore oil exploration and exploitation environmental protection technical field of petroleum industry, oil spill skimmer in particularly a kind of offshore drilling drilling fluid.
Background technology
At present, the marine eco-environment is the same with land ecological environment, is the important component part of ecological environment.In nineteen eighty-two; China national Environmental Protection Agency, National Bureau of Oceanography issue laws and regulations such as " People's Republic of China's law of marine environmental protection ", " offshore oil drilling open loop border Protection Code " in succession; Offshore drilling waste discharge rules are quite strict; Particularly the drilling well of oil-containing/completion fluid discarded object has caused home and abroad environment protection circle, petroleum industrial circle and many public's common concern to the influence of environment, and this problem at sea oil field seems particularly outstanding.These drilling fluids have satisfied the needs of offshore drilling engineering preferably; But also brought problem of environmental pollution after using to marine environment; Mainly show: (1) oil-containing rejected well drilling liquid discharge into sea, oils will be separated from rejected well drilling liquid, the floating oil slick that forms across the sea.Oil slick can cause a series of harm to marine environment: oils swims in the seawater water surface and forms oil film, influences the exchange of seawater and atmosphere, reduces dissolved oxygen of seawater, causes the massive losses of marine organisms or sea fisheries; Oil film drifts about with sea wind, usually to bay and the drift of travelling scenery district, influences the color and the smell of seawater, thereby influences shore fishery, tourist industry and industrial and agricultural production and living water use, causes enormous economic loss or abominable social influence; In oils and its catabolite, exist multiple noxious material, by aquatile absorption, enrichment, the effect through food chain gets into human body to these materials then, is detrimental to health in seawater; Large-area ocean oil slick also can influence atmospheric air circulation, and the harm marine ecosystems cause the long term environmental effect that is difficult to estimate.(2) oils of not separating from rejected well drilling liquid can sink to the seabed with rejected well drilling liquid, and under the condition of seabed oxygen supply deficiency, the biodegradation of oils very slowly can remain in the seabed for a long time.Oils can cause The Long-term Effect and harm to marine environment at the extended residual in seabed, as influences the vegeto-animal growth and breeding in seabed.In addition, the oils that sinks in the rejected well drilling liquid in seabed can progressively discharge, and influences halobiontic growth and breeding, or forms oil slick and cause multiple harm.
At present, general Separation of Solid and Liquid recovered oil efficient is low, also can destroy drilling fluid stability and performance, and the solid-liquid separating equipment volume is bigger, is not suitable for offshore drilling platform; The spiral-flow type solid-liquid separator, volume is big, destroys property of drilling fluid during Separation of Solid and Liquid, also need further carry out water-oil separating; Electrochemical deoiling methods such as detergent, its know-why are that the water in oil slick and the drilling fluid is carried out emulsification, form the emulsion of homogeneous, and oil slick temporary transient " disappearance " and hiding is prone to cause secondary pollution to marine environment, and oil slick also end reclaims.
Summary of the invention
The purpose of the utility model is: oil spill skimmer in a kind of offshore drilling drilling fluid is provided; Through gravitational settling and the effect of coalescing medium net; The realization drilling fluid separates with oil slick, avoids the pollution of oil-containing drilling fluid to the marine eco-environment, and reclaims the oils resource.
The purpose of the utility model is achieved in that oil spill skimmer mainly is made up of circulation of drilling fluid pipeline, centrifuge, drilling fluid grit chamber, packaged type joint, pvc pipe line, diaphragm pump, oil water separator, receipts oil tank, drilling fluid storage tank in the offshore drilling drilling fluid.The import of drilling fluid grit chamber is connected with the drilling fluid centrifuge outlet, and top links to each other with the packaged type joint, and outlet is connected with the circulation of drilling fluid pipeline.The import of diaphragm pump links to each other with the pvc pipe line, at pvc pipe line end the packaged type joint is installed, and puts into drilling fluid grit chamber top; The outlet of diaphragm pump is connected with oil water separator through the pvc pipe line.Oil water separator is a packaged type, and import is connected by pvc pipe line diaphragm type exit of pump, and two outlets in upper and lower are arranged.The top outlet is oil-out, links to each other with the receipts oil tank through the pvc pipe line.Lower part outlet is the drilling fluid outlet, links to each other with the drilling fluid storage tank through the pvc pipe line.Coalescing medium net in the oil water separator is detachable to be taken out and cleans.
The beneficial effect of the utility model: 1. the oil slick rate of recovery is high, reaches more than 96%, and the oil content in the drilling fluid behind the skimming is below 100mg/L.Reclaim the oils resource, protected the marine eco-environment.2. efficiently solve the problem of environmental pollution that oil slick brought in the offshore drilling drilling fluid; Oil spill skimmer realizes that through physical actions such as gravitational settling and coalescing medium nets oil slick separates with drilling fluid, has overcome conventional use detergent and has removed the technological deficiency of oil slick in the drilling fluid and potential environmental risk.3. take up an area of little: the oil spill skimmer floor space is little in the offshore drilling drilling fluid; Receive oil tank and drilling fluid storage tank and all use the offshore drilling platform existing equipment; And diaphragm type water pump and oil water separator are packaged type; After using end, it is subsequent use to take in the storing Tibetan, and at sea the offshore boring island applicability is strong.4. simple in structure, easy to operate: the utility model apparatus structure is simple, and on-the-spot arrangement convenience is simple to operate, and the coalescing medium net in the oil water separator detachably cleans continued and uses.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure, 1 is that circulation of drilling fluid pipeline, 2 is that centrifuge, 3 is that drilling fluid grit chamber, 4 is that packaged type joint, 5 is that pvc pipe line, 6 is that diaphragm pump, 7 is that oil water separator, 8 is that receipts oil tank, 9 is the drilling fluid storage tank.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed description: with reference to accompanying drawing 1, oil spill skimmer comprises circulation of drilling fluid pipeline (1), centrifuge (2), drilling fluid grit chamber (3), packaged type joint (4), pvc pipe line (5), diaphragm pump (6), oil water separator (7), receives oil tank (8) in the offshore drilling drilling fluid, drilling fluid storage tank (9) is formed.The import of drilling fluid grit chamber (3) is connected with drilling fluid centrifuge (2) outlet, and top links to each other with packaged type joint (4), and outlet is connected with circulation of drilling fluid pipeline (1).The import of diaphragm pump (6) links to each other with pvc pipe line (5), at pvc pipe line (5) end packaged type joint (4) is installed, and puts into drilling fluid grit chamber (3) top; The outlet of diaphragm pump (6) is connected with oil water separator (7) through pvc pipe line (5).Oil water separator (7) is a packaged type, and import is connected by pvc pipe line (5) diaphragm pump (6) outlet, and two outlets in upper and lower are arranged, and the top outlet is oil-out, links to each other with receipts oil tanks (8) through pvc pipe line (5).Lower part outlet is the drilling fluid outlet, links to each other with drilling fluid storage tank (9) through pvc pipe line (5).Coalescing medium net in the oil water separator (7) is detachable to be taken out and cleans.Circulation of drilling fluid pipeline (1) diameter 40mm; Centrifuge (2) treating capacity 40m
3/ h; Drilling fluid grit chamber (3) dischargeable capacity 4m
3Packaged type joint (4) diameter 20mm; Pvc pipe line (5) diameter 20mm; Diaphragm pump (6) flow 10m
3/ h; Oil water separator (7) treating capacity 10m
3/ h; Receive oil tank (8) dischargeable capacity 3m
3Drilling fluid storage tank (9) dischargeable capacity 6m
3, electric mixer is installed.
The oil-containing drilling fluid gets into drilling fluid grit chamber (3) deposition, desanding through the offshore drilling platform drilling-fluid circulation system.Drilling fluid after deposition and the desanding gets into oil water separator (7) under the conveying effect of pvc pipe line (5) and diaphragm pump 2.After the oil-containing drilling fluid got into oil water separator (6), under the physical action of gravitational settling and coalescing medium net, oil slick separated with drilling fluid, floats to oil water separator (7) top on the oil slick.Under the action of pressure that drilling fluid grit chamber (3) and oil water separator (7) are produced because of the position height difference; The oil slick on oil water separator (7) top flows into voluntarily receives oil tank (8); The drilling fluid of bottom flows into drilling fluid storage tank (9) voluntarily, and returns drilling-fluid circulation system, continues to use.
The utility model has significant advantage economically, and except that the disposable input buying expenses of diaphragm type water pump, pvc pipe line and oil water separator, oil spill skimmer does not produce any expense when using, and the oil that reclaims can produce economic benefit.
Claims (3)
1. oil spill skimmer in the offshore drilling drilling fluid; It comprises circulation of drilling fluid pipeline (1), centrifuge (2), drilling fluid grit chamber (3), packaged type joint (4), pvc pipe line (5), diaphragm pump (6), oil water separator (7), receive oil tank (8), drilling fluid storage tank (9) is formed; The import that it is characterized in that drilling fluid grit chamber (3) is connected with drilling fluid centrifuge (2) outlet; Top links to each other with packaged type joint (4), and outlet is connected with circulation of drilling fluid pipeline (1), and the import of diaphragm pump (6) links to each other with pvc pipe line (5); At pvc pipe line (5) end packaged type joint (4) is installed, puts into drilling fluid grit chamber (3) top; The outlet of diaphragm pump (6) is connected with oil water separator (7) through pvc pipe line (5).
2. oil spill skimmer in the offshore drilling drilling fluid according to claim 1 is characterized in that oil water separator (7) is a packaged type, and import is connected by pvc pipe line (5) diaphragm pump (6) outlet; Two outlets in upper and lower are arranged; The top outlet is oil-out, links to each other with receipts oil tanks (8) through pvc pipe line (5), and lower part outlet is the drilling fluid outlet; Link to each other with drilling fluid storage tank (9) through pvc pipe line (5), the coalescing medium net in the oil water separator (7) is detachable to be taken out and cleans.
3. oil spill skimmer in the offshore drilling drilling fluid according to claim 1 is characterized in that circulation of drilling fluid pipeline (1) diameter 40mm; Centrifuge (2) treating capacity 40m
3/ h; Drilling fluid grit chamber (3) dischargeable capacity 4m
3Packaged type joint (4) diameter 20mm; Pvc pipe line (5) diameter 20mm; Diaphragm pump (6) flow 10m
3/ h; Oil water separator (7) treating capacity 10m
3/ h; Receive oil tank (8) dischargeable capacity 3m
3Drilling fluid storage tank (9) dischargeable capacity 6m
3, electric mixer is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204291296U CN202273617U (en) | 2011-10-25 | 2011-10-25 | Floating oil recovery device in drilling fluid of offshore drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204291296U CN202273617U (en) | 2011-10-25 | 2011-10-25 | Floating oil recovery device in drilling fluid of offshore drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202273617U true CN202273617U (en) | 2012-06-13 |
Family
ID=46193981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204291296U Expired - Lifetime CN202273617U (en) | 2011-10-25 | 2011-10-25 | Floating oil recovery device in drilling fluid of offshore drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202273617U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505924A (en) * | 2011-10-26 | 2012-06-20 | 谢水祥 | Floating oil recovery device in drilling fluid for offshore drilling |
-
2011
- 2011-10-25 CN CN2011204291296U patent/CN202273617U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505924A (en) * | 2011-10-26 | 2012-06-20 | 谢水祥 | Floating oil recovery device in drilling fluid for offshore drilling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151009 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee after: Sinopec Corp. Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: Sinopec Corp. Patentee before: SINOPEC Shengli Offshore Drilling Company |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120613 |
|
| CX01 | Expiry of patent term |