CN2780346Y

CN2780346Y - Oil, gas, water separator

Info

Publication number: CN2780346Y
Application number: CN 200520008981
Authority: CN
Inventors: 李冬林; 李涛
Original assignee: Survey Design & Research Institute Of Henan Petroleum Exploration Bureau Of China Petrochemical Corp
Current assignee: Sinopec Oilfield Service Corp
Priority date: 2005-03-25
Filing date: 2005-03-25
Publication date: 2006-05-17
Anticipated expiration: 2015-03-25

Abstract

The utility model relates to a developing device for an oil-gas field, particularly an oil-gas and water separator used for separating the produced liquid during the ground construction of the oil-gas field. The utility model adopts a horizontal casing structure; a casing is divided into a settling chamber, an oil chamber and a water chamber by partition plates of the oil chamber and partition plates of the water chamber which are vertically positioned with the shaft line of the casing; the casing is provided with a mixing fluid inlet connecting tube, a gas outlet connecting tube, a drainage tube of the settling chamber, an oil outlet connecting tube, a drainage pipe of the water chamber, a dirty oil outlet connecting tube and a water outlet connecting tube; the space between the settling chamber and the water chamber is provided with guiding tubes; the inner part of the water chamber is provided with a composite structure of rotational flow tubes. The adoption of the technical scheme of the utility model can make the device more compact, improve the entire performance and reduce construction investment and running cost. In particular, the utility model is suitable for the places having severe limits for the size of fields, such as an offshore platform and the utility model has good economical and practical value.

Description

A kind of oil gas water separator

One, technical field

The utility model relate in a kind of the oil-gas field development equipment, particularly oil-gas field surface engineering to extraction liquid carry out oil and gas and water from equipment.

Two, background technology

In prior art, oil gas water separator and cyclone all are widely used oil-gas-water separators in the oil-gas field surface engineering, and its application is to adopt two sections flow processs.At first be extraction liquid (oil gas water three phase mixing material) to be carried out initial gross separation with oil gas water separator, sewage after the separation is discharged from hydroecium, and then the sewage of being told by oil gas water separator (still containing a spot of oil in the water) is carried out centrifugation, and finally reach and purify waste water and realize separating of oil gas water three phase by cyclone.As can be seen, though existing equipment also is by gravity and centrifugal force to the separation of oil gas water, but these two kinds of separate modes of gravity and centrifugal force are respectively to be used in two equipment, when carrying out water-oil separating by centrifugal force, are by special equipment---cyclone is finished.Obviously Gravity Separation and rotational flow separation are carried out in two sections flow processs in the prior art, need at least two equipment just can finish.Like this, both increased construction investment expense and operating cost, and increased floor space (space) again, the connection of two equipment rooms has also increased hidden danger.

Three, summary of the invention

The purpose of this utility model is exactly that a kind of little separator of oil gas that just can realize gravity and two kinds of separating effects of eddy flow in an equipment is provided in order to overcome the deficiencies in the prior art.

Realize that the technical scheme that the utility model purpose is taked is:

A kind of oil gas water separator, adopt the horizontal type shell structure, by grease chamber's dividing plate and hydroecium dividing plate housing is divided into expansion chamber, grease chamber and hydroecium with the perpendicular layout of housing axis, being provided with fluid-mixing entrance sleeve, gas discharge connection, expansion chamber blow-off pipe, oil export adapter, hydroecium blow-off pipe, sump oil discharge connection and water out on housing takes over, between expansion chamber and hydroecium, be provided with conduit, and in hydroecium, be provided with the cyclone pipe combining structure.

Described cyclone pipe combining structure is made up of single cyclone pipe, vertical overflow header and vertical underflow header, the overfall of cyclone pipe directly links to each other with vertical overflow header, the underflow opening of cyclone pipe directly links to each other with vertical underflow header, vertically the overflow header other end links to each other with the sump oil discharge connection, and vertically the underflow header other end is taken over water out and linked to each other.

Described cyclone pipe combining structure is made up of at least 2 cyclone pipes, overflow header, vertical overflow header, underflow header and vertical underflow header, the overfall of each cyclone pipe is with after the overflow header links to each other, the overflow header links to each other with vertical overflow header again, the underflow opening of each cyclone pipe is with after the underflow header links to each other, the underflow header links to each other with vertical underflow header again, vertically the overflow header other end links to each other with the sump oil discharge connection, and vertically the underflow header other end is taken over water out and linked to each other.

The beneficial effect that adopts the technical solution of the utility model to realize is:

Because the utility model can carry out Gravity Separation and rotational flow separation respectively to extraction liquid in an equipment, can in same equipment, carry out centrifugal cyclone once more to the sewage after the Gravity Separation and separate.Compare with existing oil-gas-water separator, the equipment of identical scale, when keeping the gentle disintegrate-quality of its original oil, can increase substantially the sewage disintegrate-quality again, its effect is equivalent to the unification of oil gas water separator of the prior art and two equipment of cyclone.

Therefore, adopt the technical solution of the utility model, can make equipment compact more, overall performance improves, and can save construction investment and reduce operating cost, particularly in the place that the place size is had strict restriction, as offshore platform, has higher economical and practical value.

Four, description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the cyclone pipe structural representation.

Fig. 3 is single cyclone pipe combining structure schematic diagram.

Fig. 4 is many cyclone pipe combining structure schematic diagrames.

Five, the specific embodiment

Referring to Fig. 1, the utility model adopts horizontal type shell 2 structures, by grease chamber's dividing plate 11 and hydroecium dividing plate 5 housing 2 is divided into expansion chamber 9, grease chamber 4 and hydroecium 8 with the perpendicular layout of housing 2 axis, on housing 2, be provided with fluid-mixing entrance sleeve 1, gas discharge connection 3, expansion chamber blow-off pipe 10, oil export adapter 12, hydroecium blow-off pipe 14, sump oil discharge connection 13 and water out and take over 15, between expansion chamber 9 and hydroecium 8, be provided with conduit 6, in hydroecium 8, be provided with cyclone pipe combining structure 16.The expansion chamber sewage draining exit is taken over 10 and is used for expansion chamber is carried out blowdown, and the hydroecium sewage draining exit is taken over 14 and is used for to the hydroecium blowdown.

Referring to Fig. 2 and Fig. 3, described cyclone pipe combining structure 16 is made up of single cyclone pipe 7, vertical overflow header 16-1 and vertical underflow header 16-3, the overfall 7-1 of cyclone pipe directly links to each other with vertical overflow header 16-1, the underflow opening 7-5 of cyclone pipe directly links to each other with vertical underflow header 16-3, vertically the overflow header 16-1 other end links to each other with sump oil discharge connection 13, and vertically the underflow header 16-3 other end links to each other with water out adapter 15.

Referring to Fig. 2 and Fig. 4, described cyclone pipe combining structure 16 is by at least 2 cyclone pipes 7, overflow header 16-2, vertical overflow header 16-1, underflow header 16-4 and vertical underflow header 16-3 form, the overfall 7-1 of each cyclone pipe 7 is with after overflow header 16-2 links to each other, overflow header 16-2 links to each other with vertical overflow header 16-1 again, the underflow opening 7-5 of each cyclone pipe 7 is with after underflow header 16-4 links to each other, underflow header 16-4 links to each other with vertical underflow header 16-3 again, vertically the overflow header 16-1 other end links to each other with sump oil discharge connection 13, and vertically the underflow header 16-3 other end links to each other with water out adapter 15.

Referring to Fig. 2, cyclone pipe 7 is made up of cyclone pipe overfall 7-1, import 7-2, main disengagement chamber 7-3, awl section disengagement chamber 7-4 and underflow opening 7-5.

Referring to Fig. 1 to Fig. 4, fluid-mixing relies on gravity to carry out the initial gross separation of oil, gas, water by the expansion chamber 9 that entrance sleeve 1 enters in the housing 2.

The gas that initial gross separation goes out is through gas discharge connection 3 device for transferring;

Cross grease chamber's dividing plate 11 in the oil spill that expansion chamber 9 initial gross separations go out, enter grease chamber 4, take over 12 device for transferring through oil export again;

The water that goes out in expansion chamber 9 initial gross separations (wherein still contains a certain proportion of oil, be called sewage in the practical engineering application), enter hydroecium 8 through conduit 6, conventional oil-gas-water separator is that sewage enters hydroecium 8 backs just by water out adapter 15 direct device for transferring, the utility model then is after sewage enters hydroecium 8, enter cyclone pipe 7 in the cyclone pipe combining structure 16 by cyclone pipe import 7-2, sewage is by cyclone pipe 7, rely on centrifugal force to carry out rotational flow separation once more, the sump oil that goes out through rotational flow separation from sewage enters the overflow header 16-2 (directly entering vertical overflow header 16-1 during single cyclone pipe) of cyclone pipe combining structure 16 by cyclone pipe overfall 7-1, pass through vertical overflow header 16-1 again, vertically overflow header 16-1 links to each other with sump oil discharge connection 13 again, and last sump oil is just by sump oil discharge connection 13 device for transferring;

Compare with the isolated sewage of conventional gas and oil water separation equipment owing to more than once rotational flow separation process from the aforementioned sewage that goes out through rotational flow separation, water quality is greatly improved, this part sewage enters the underflow header 16-4 (directly entering vertical underflow header 16-3 during single cyclone pipe) of cyclone pipe combining structure 16 by the underflow opening 7-5 of cyclone pipe 7, pass through vertical underflow header 16-3 again, vertically underflow header 16-3 links to each other with outfall adapter 15 again, and last sewage is just taken over 15 device for transferring by outfall.

So far, the fluid-mixing that enters in the housing 2 by entrance sleeve 1 just has been separated into oil, G﹠W three parts, and takes over 15 device for transferring from oil export adapter 12, gas discharge connection 3 and water out respectively.

Claims

1. oil gas water separator, adopt horizontal type shell (2) structure, by grease chamber's dividing plate (11) and hydroecium dividing plate (5) housing (2) is divided into expansion chamber (9) with the perpendicular layout of housing (2) axis, grease chamber (4) and hydroecium (8), on housing (2), be provided with fluid-mixing entrance sleeve (1), gas discharge connection (3), expansion chamber blow-off pipe (10), oil export is taken over (12), hydroecium blow-off pipe (14), sump oil discharge connection (13) and water out are taken over (15), between expansion chamber (9) and hydroecium (8), be provided with conduit (6), it is characterized in that: in hydroecium (8), be provided with cyclone pipe combining structure (16).

2. a kind of oil gas water separator according to claim 1, it is characterized in that: described cyclone pipe combining structure (16) is made up of single cyclone pipe (7), vertical overflow header (16-1) and vertical underflow header (16-3), the overfall of cyclone pipe (7-1) directly links to each other with vertical overflow header (16-1), the underflow opening of cyclone pipe (7-5) directly links to each other with vertical underflow header (16-3), vertically overflow header (16-1) other end links to each other with sump oil discharge connection (13), and vertically underflow header (16-3) other end links to each other with water out adapter (15).

3. a kind of oil gas water separator according to claim 1, it is characterized in that: described cyclone pipe combining structure (16) is by at least 2 cyclone pipes (7), overflow header (16-2), vertical overflow header (16-1), underflow header (16-4) and vertical underflow header (16-3) are formed, the overfall (7-1) of each cyclone pipe (7) is with after overflow header (16-2) links to each other, overflow header (16-2) links to each other with vertical overflow header (16-1) again, the underflow opening (7-5) of each cyclone pipe (7) is with after underflow header (16-4) links to each other, underflow header (16-4) links to each other with vertical underflow header (16-3) again, vertically overflow header (16-1) other end links to each other with sump oil discharge connection (13), and vertically underflow header (16-3) other end links to each other with water out adapter (15).