CN105370261A - Centrifugal oil-gas separation device - Google Patents
Centrifugal oil-gas separation device Download PDFInfo
- Publication number
- CN105370261A CN105370261A CN201510683020.8A CN201510683020A CN105370261A CN 105370261 A CN105370261 A CN 105370261A CN 201510683020 A CN201510683020 A CN 201510683020A CN 105370261 A CN105370261 A CN 105370261A
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- CN
- China
- Prior art keywords
- cylindrical shell
- gas
- oil
- joint
- helical blade
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- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
Abstract
The invention discloses a centrifugal oil-gas separation device which mainly consists of an input pipe, a barrel, a screw rod and a separation joint. The centrifugal oil-gas separation device is characterized in that an oil-gas mixture is input through the input pipe, and flows to the separation joint under the action of the screw rod in the barrel, so as to realize oil-gas separation; the input pipe is connected with the barrel through threads; the screw rod is connected with the barrel through the threads and is fixed in the barrel; and the barrel is connected with the separation joint through the threads. While the oil-gas mixture is input through the input pipe, under the action of a lower screw blade, a liquid phase fluid of the oil-gas mixture is thrown to the inner wall of the barrel, and when the oil-gas mixture flows to an upper screw blade from the lower screw blade, a shearing effect is generated to allow a gas phase fluid to be separated from the liquid phase fluid; and when the oil-gas mixture is separated from the upper screw blade and flows to an expansion chamber, a negative pressure effect is generated. The centrifugal oil-gas separation device is simple in structure, and is applicable to oil-gas separation treatment before oil gas enters equipment such as an oil recovery screw pump.
Description
Technical field
The present invention relates to a kind of separator, particularly a kind of gas and oil separating plant for down-hole or ground, belongs to petroleum gas and adopts transferring technology field.
Background technology
The exploration and development of petroleum resources is the key factor affecting national development.Geology and drilling data show, oil is gentle normally to be occurred in the mode coexisted.In oil and gas exploitation process, usually need based on the drilling tool of drill bit and drilling rod etc. to be drilled into deeply reach thousands of meters place to develop these resources.Except drilling well, being carried earthward by shaft bottom by oil gas is also a very important technique.Because oil gas is in underground and transportation range is comparatively far away, usually need to carry with special instrument, such as screw pump.But the structure special due to screw pump and operating principle, screw pump is applicable to conveying neat liquid material, and gas or gas-liquid mixture are not suitable for carrying with screw pump.The operating principle of screw pump is the engagement between stators and rotators, and the external surface of stators and rotators is made by rubber.Engineering practice shows, when the stators and rotators of screw pump is when there being hydrodynamic lubrication, the rubber on stators and rotators has the longer life-span.But when in liquid phase substance during entrained gas, the life-span of screw pump will significantly reduce.
Screw pump is a kind of pump of positive displacement, when being mingled with gas in liquid phase fluid, is unfavorable for the Cooling and Lubricator between rotor, thus aggravates the dry friction of rubber between rotor.Simultaneously; gas usually can exist with the form of micro-bubble in liquid phase fluid; these bubbles are crumbled and fall in the stators and rotators engagement process of screw pump; great impact force and high temperature is produced in the moment of crumbling and fall; to there is fatigue failure after standing this impact force repeated action in rubber surface, occur pit and aggravate to destroy.In addition, the bubble in liquid phase fluid also will cause the mutual shock of liquid when crumbling and fall, and produce heat thus and screw pump internal temperature is raised, and the motion of fluid also will waste system capacity.
The mode of existing technology many employings eddy flow about Oil-gas Separation or gas-liquid separation is carried out, but, oil-gas mining normally to be carried out and the diameter of Oil/gas Well is very little at the thousands of rice of underground, the separator of Conventional cyclonic structure is arranged at the efficient separation that down-hole is not easy to oil gas.
Summary of the invention
The object of the invention is to overcome above-mentioned difficult point, a kind of centrifugal gas and oil separating plant of special proposition, for realizing the Oil-gas Separation of down-hole or ground.
For achieving the above object, the technical scheme that the present invention solves the employing of this technical problem is:
A kind of centrifugal gas and oil separating plant, primarily of input pipe, cylindrical shell, screw rod and separating joint composition, is characterized in that: gas mixture is inputted by input pipe, via flowing to separating joint after the screw rod effect of inner barrel and realizing Oil-gas Separation; Described input pipe is connected with cylindrical shell by screw thread, and screw rod to be connected with cylindrical shell by screw thread and to be fixed in cylindrical shell, and cylindrical shell is connected with separating joint by screw thread.
The centrifugal gas and oil separating plant of described one, is characterized in that described cylindrical shell comprises at the bottom of cylindrical shell top button, expansion chamber, cylindrical shell main body and cylindrical shell and detains; Described cylindrical shell top button is connected with separating joint, and at the bottom of cylindrical shell, button is connected with input pipe; Described cylindrical shell main body is straight cylinder, and cylindrical shell main body expands in its top end diameter and forms expansion chamber.
The centrifugal gas and oil separating plant of described one, it is characterized in that described screw rod comprises conehead, upper helical blade, lower helical blade, support bar and fixed disk, the quantity of described upper helical blade and lower helical blade is 2, and the rotation direction of upper helical blade and lower helical blade is contrary; Be positioned at the fixed disk of support bar bottom for being connected with cylindrical shell thus fixing screw rod in cylindrical shell; Described fixed disk is provided with the runner for oil gas flowing.
The centrifugal gas and oil separating plant of described one, it is characterized in that described separating joint comprises button and dome at the bottom of joint top button, gas channel, oil flow channel, joint, described joint top button is connected with output equipment, gas channel is for discharging the gas in gas mixture, oil flow channel is for discharging the fluid oil in gas mixture, and button at the bottom of joint is used for linking with cylindrical shell top connecing; Described oil flow channel is along the uniform arrangement of central axis of separating joint, and its quantity is 8; The bottom of described separating joint is upwards swelled and is formed dome and be beneficial to gas discharging.
The centrifugal gas and oil separating plant of described one, it is characterized in that when gas mixture is inputted by input pipe, gas mixture liquid phase fluid under the effect of lower helical blade will get rid of to cylinder inboard wall, and gas mixture will produce shearing effect when being flowed to helical blade by lower helical blade; Gas mixture will produce underbalance effect when helical blade flows to expansion chamber on departing from.
Compared with prior art, the beneficial effect that the present invention has is: (1) apparatus of the present invention do not affect normal oil gas and transport technique, but can realize Oil-gas Separation thus the efficiency of the oil production equipments such as raising screw pump; (2) apparatus of the present invention length is short, and structure is simple and easy and simple to handle, little to systematic influence; (3) apparatus of the present invention are based on fluid dynamic theory and hydrodynamic calculations, utilize shearing effect to realize being separated oil gas with underbalance effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of apparatus of the present invention;
Fig. 2 is the structural representation of the cylindrical shell of apparatus of the present invention;
Fig. 3 is the structural representation of the screw rod of apparatus of the present invention;
Fig. 4 is the structural representation of the fixed disk of the screw rod bottom of apparatus of the present invention;
Fig. 5 is the structural representation of the separating joint of apparatus of the present invention;
Fig. 6 is the top view of the separating joint of apparatus of the present invention;
In figure: 1. input pipe, 2. cylindrical shell, 2a. cylindrical shell top is detained, 2b. expansion chamber, 2c. cylindrical shell main body, detains at the bottom of 2d. cylindrical shell, 3. screw rod, 3a. conehead, the upper helical blade of 3b., helical blade under 3c., 3d. support bar, 3e. fixed disk, 4. separating joint, 4a. joint top is detained, 4b. gas channel, 4c. oil flow channel, detains at the bottom of 4d. joint, 4e. dome.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figure 1, a kind of centrifugal gas and oil separating plant, form primarily of input pipe 1, cylindrical shell 2, screw rod 3 and separating joint 4, it is characterized in that: gas mixture is inputted by input pipe 1, via flowing to separating joint 4 after screw rod 3 effect of cylindrical shell 2 inside and realizing Oil-gas Separation; Described input pipe 1 is connected with cylindrical shell 2 by screw thread, and screw rod 3 to be connected with cylindrical shell 2 by screw thread and to be fixed in cylindrical shell 2, and cylindrical shell 2 is connected with separating joint 4 by screw thread.
As shown in Figure 2, the centrifugal gas and oil separating plant of described one, is characterized in that described cylindrical shell 2 comprises button 2d at the bottom of cylindrical shell top button 2a, expansion chamber 2b, cylindrical shell main body 2c and cylindrical shell; Described cylindrical shell top button 2a is connected with separating joint 4, detains 2d and be connected with input pipe 1 at the bottom of cylindrical shell; Described cylindrical shell main body 2c is straight cylinder, and cylindrical shell main body 2c expands in its top end diameter and forms expansion chamber 2b.
As shown in Figure 3 and Figure 4, the centrifugal gas and oil separating plant of described one, it is characterized in that described screw rod 3 comprises conehead 3a, upper helical blade 3b, lower helical blade 3c, support bar 3d and fixed disk 3e, the quantity of described upper helical blade 3b and lower helical blade 3c is 2, and the rotation direction of upper helical blade 3b and lower helical blade 3c is contrary; Be positioned at the fixed disk 3e of support bar 3d bottom for being connected with cylindrical shell 2 thus fixing screw rod 3 in cylindrical shell 2; Described fixed disk 3e is provided with the runner 3f for oil gas flowing.
As shown in Figure 5 and Figure 6, the centrifugal gas and oil separating plant of described one, it is characterized in that described separating joint 4 comprises button 4d and dome 4e at the bottom of joint top button 4a, gas channel 4b, oil flow channel 4c, joint, described joint top button 4a is connected with output equipment, gas channel 4b is for discharging the gas in gas mixture, oil flow channel 4c, for discharging the fluid oil in gas mixture, detains 4d and is connected for detaining 2a with cylindrical shell top at the bottom of joint; Described oil flow channel 4c is along the uniform arrangement of central axis of separating joint 4, and its quantity is 8 or 4; The bottom of described separating joint 4 is upwards swelled and is formed dome 4e and be beneficial to gas discharging.
Embodiment 1, when gas mixture flows into eliminator through input pipe 1, gas mixture liquid phase fluid under the effect of lower helical blade 3c is thrown toward cylindrical shell 2 inwall because of larger centrifugal action; In the process, the gas be dissolved in liquid phase fluid realizes oil gas disengaging but gas is still present in liquid phase oil; When gas mixture also flows to the lower end of helical blade 3b in the upper end walking to lower helical blade 3c, because the direction of upper helical blade 3b and lower helical blade 3c is contrary, fluid flows along contrary rotation direction; At fluid by helical blade 3b process in the lower helical blade 3c flow direction, the momentum of fluid changes and occurs energy loss, a part in these energy is used for providing a shearing force to liquid phase fluid, and namely fluid also exists the shearing effect of apparatus of the present invention convection cell in the process being flowed to the contrary upper helical blade 3b of rotation direction by lower helical blade 3c; The generation of shearing effect will speed up gas or the second cosmic velocity of bubble in liquid phase fluid.
When gas mixture walks to the top of upper helical blade 3b, the conehead 3a on support bar 3d top and the expansion chamber 2b acting in conjunction of cylindrical shell 2 upper end on the one hand, makes gas mixture occur that step-down produces underbalance effect at expansion chamber 2b; On the other hand, gas mixture liquid phase fluid under the effect of upper helical blade 3b will mainly concentrate on the periphery of helical blade 3b, and gas is then main to be risen along on upper helical blade 3b inner edge; Meanwhile, dome 4e is provided with in the bottom of separating joint 4 for realizing the gentle shunting of oil.
The above detailed description of the invention is for illustration of the present invention but not limit the scope of the invention, and any those skilled in the art, not departing from equivalent variations done under design of the present invention and principle prerequisite and amendment, all belongs to protection scope of the present invention.
Claims (4)
1. a centrifugal gas and oil separating plant, form primarily of input pipe (1), cylindrical shell (2), screw rod (3) and separating joint (4), it is characterized in that: gas mixture is inputted by input pipe (1), via flowing to separating joint (4) after screw rod (3) effect that cylindrical shell (2) is inner and realizing Oil-gas Separation; Described input pipe (1) is connected with cylindrical shell (2) by screw thread, screw rod (3) to be connected with cylindrical shell (2) by screw thread and to be fixed in cylindrical shell (2), and cylindrical shell (2) is connected with separating joint (4) by screw thread.
2. the centrifugal gas and oil separating plant of one according to claim 1, is characterized in that described cylindrical shell (2) comprises button (2d) at the bottom of cylindrical shell top button (2a), expansion chamber (2b), cylindrical shell main body (2c) and cylindrical shell; Described cylindrical shell top button (2a) is connected with separating joint (4), detains (2d) and be connected with input pipe (1) at the bottom of cylindrical shell; Described cylindrical shell main body (2c) is straight cylinder, and cylindrical shell main body (2c) expands in its top end diameter and forms expansion chamber (2b).
3. the centrifugal gas and oil separating plant of one according to claim 1, it is characterized in that described screw rod (3) comprises conehead (3a), upper helical blade (3b), lower helical blade (3c), support bar (3d) and fixed disk (3e), the quantity of described upper helical blade (3b) and lower helical blade (3c) is 2, and the rotation direction of upper helical blade (3b) and lower helical blade (3c) is contrary; Be positioned at the fixed disk (3e) of support bar (3d) bottom for being connected with cylindrical shell (2) thus fixing screw rod (3) in cylindrical shell (2); Described fixed disk (3e) is provided with the runner (3f) for oil gas flowing.
4. the centrifugal gas and oil separating plant of one according to claim 1, it is characterized in that described separating joint (4) comprises button (4d) and dome (4e) at the bottom of joint top button (4a), gas channel (4b), oil flow channel (4c), joint, described joint top button (4a) is connected with output equipment, gas channel (4b) is for discharging the gas in gas mixture, oil flow channel (4c), for discharging the fluid oil in gas mixture, is detained (4d) and is connected for detaining (2a) with cylindrical shell top at the bottom of joint; Described oil flow channel (4c) is along the uniform arrangement of central axis of separating joint (4), and its quantity is 8; The bottom of described separating joint (4) is upwards swelled and is formed dome (4e) and be beneficial to gas discharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510683020.8A CN105370261A (en) | 2015-10-20 | 2015-10-20 | Centrifugal oil-gas separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510683020.8A CN105370261A (en) | 2015-10-20 | 2015-10-20 | Centrifugal oil-gas separation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105370261A true CN105370261A (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510683020.8A Pending CN105370261A (en) | 2015-10-20 | 2015-10-20 | Centrifugal oil-gas separation device |
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| CN (1) | CN105370261A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4481020A (en) * | 1982-06-10 | 1984-11-06 | Trw Inc. | Liquid-gas separator apparatus |
| US5902378A (en) * | 1997-07-16 | 1999-05-11 | Obrejanu; Marcel | Continuous flow downhole gas separator for processing cavity pumps |
| CN200971777Y (en) * | 2006-07-09 | 2007-11-07 | 蔺吉荣 | Multifunction oil output increasing device |
| CN201013345Y (en) * | 2007-01-08 | 2008-01-30 | 姚向青 | Novel down-hole three-phase separator |
| CN201627575U (en) * | 2010-04-01 | 2010-11-10 | 丁建军 | Oil well air-lock-preventing oil pumping pipe column |
-
2015
- 2015-10-20 CN CN201510683020.8A patent/CN105370261A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4481020A (en) * | 1982-06-10 | 1984-11-06 | Trw Inc. | Liquid-gas separator apparatus |
| US5902378A (en) * | 1997-07-16 | 1999-05-11 | Obrejanu; Marcel | Continuous flow downhole gas separator for processing cavity pumps |
| CN200971777Y (en) * | 2006-07-09 | 2007-11-07 | 蔺吉荣 | Multifunction oil output increasing device |
| CN201013345Y (en) * | 2007-01-08 | 2008-01-30 | 姚向青 | Novel down-hole three-phase separator |
| CN201627575U (en) * | 2010-04-01 | 2010-11-10 | 丁建军 | Oil well air-lock-preventing oil pumping pipe column |
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Application publication date: 20160302 |
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