US2423793A - Oil and water separator having a collecting pipe and a stratification pipe therebelow - Google Patents

Oil and water separator having a collecting pipe and a stratification pipe therebelow Download PDF

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US2423793A
US2423793A US520806A US52080644A US2423793A US 2423793 A US2423793 A US 2423793A US 520806 A US520806 A US 520806A US 52080644 A US52080644 A US 52080644A US 2423793 A US2423793 A US 2423793A
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pipe
oil
stratification
water
collecting pipe
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US520806A
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Walter L Olivo
Joseph B Terrell
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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

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  • This invention relates to oil and water separators and has reference, more in particular, to a so-called water knock-out trap for both pumper and pressure wells, and the principal object is to generally and specifically improve upon presently known similarly constructed traps, this through the adoption and use of a unitary construction of utmost simplicity aptly and ideally suited for the purposes intended.
  • Oil and water separators hitherto known are rather complex structures usually provided with a stratiflcation chamber into which the oil mixed with water enters.
  • As the stratiflcation chamber of such a water trapcan hardly have the requisite height to exclude withdrawal of gas or water with the oil, a standpipe, and oil, gas and water heads have to be added from which the stratifled fluids may be withdrawn at levelssufllc'iently different is admitted and from which the oil, when entirely freed from water, is withdrawn.
  • This oil pipe cooperates with a stratiflcation pipe arranged below and communicating with it by means of vertical pipes.
  • deflector partitions or baflies directing the inflowing oil towards the-Stratification pipe and reducing the velocity of the flow towards the outlet.
  • the oil pipe forms a straight communication between the inlet of the oil and its outlet.
  • the deflectors or baflies divide it into sections. In the flrst section near the inlet end the oil and the water carried by it is deflected into the strati-
  • the middle section is filled with oil rising through the vertical pipes from the stratiflcation pipe.
  • the deflecting baflle at the end of this section directs any water which may have been carried into-this section by direct inflow or otherwise into the stratiflcation pipe.
  • the latter which is located in a separate branch, permits complete stratiflcation and separation of the water and oil without causing emulsiflcation.
  • Another object of the invention is the provision of a compact and convenient assemblage of coacting parts so designed and coordinated as to minimize the presence of obstructive turns, this to prevent the formation of emulsions, to maintain the desired uniform pressure and circulatory action and insuring a steady and direct flow of fluid from the time it enters the trap until it leaves the trap by especially arranged discharge devices.
  • the preferred structural embodiment is such as to simplify the task of operation of the attendant, to obviate the likelihood of the component parts getting out of order and to promote safety by use of a well balanced adaptation substantially free from blow-outs and breakdowns.
  • Figure 1 is an elevational view of the complete trap construction showing how it is operatively connected with a conventional oil well.
  • FIG. 3 is a similar fragmentary sectional view of the oil discharge chamber.
  • the separator unit 30 for separating oil, water and sand consists mainly of two chambers formed by pipes I2 and I5 which are arranged one below the other, and are connected by a number of vertical tubes and standpipes l4, 2
  • the oil from the well which is mixed with water and sand, is fed from the well tube 4 leading from the well which is provided, with a head 5 connected with a tube 6 provided with a valve I.
  • This tube is, in its turn, connected with an admission pipe 9 which leads to the upper pipe I2 of the unit 30 forming the oil collecting pipe.
  • the admission pipe 9 may be connected with the pipe 6 by means of a fitting carrying a pressure gauge 8,
  • the admission pipe 9 is connected with the intake nipple ID of the oil collectin pipe I2 which is of reduced cross section and which opens into anadmission chamber ll formed within the oil collecting pipe l2 at its entrance or admission end by means of a deflector bailie l3 which fills part of the cross section of pipe I2 but leaves the upper part open for communication of the chamber H with the remainder of the pipe 12 as seen in Figure 2.
  • a deflector bailie l3 which fills part of the cross section of pipe I2 but leaves the upper part open for communication of the chamber H with the remainder of the pipe 12 as seen in Figure 2.
  • the main vertical separator duct I4 In front of the deflector bafile the main vertical separator duct I4 is arranged, which conthe deflecting battle is is somewhat forwardly inclined and may be suitably curved.
  • the stratification pipe 15 is longer and of greater diameter than the oil collecting pipe 12 and it is moreover inclined with respect thereto and with respect to the horizontal.
  • a discharge chamber I6 is formed by means of another baille 20, partly filling the cross section of the tube and arranged directly behind another vertical connecting pipe l9 leading from the oil collecting pipe 12 to the stratification pipe 15.
  • This discharge chamber 16 ends in a reducing nipple H to which the oil discharge pipe I8 is connected.
  • the latter leads to a so-called flow beam or sampling case 26 provided with a valve or sampling cook 27 from which samples of the oil flom'ng to the clean oil or flow line 25 and to the battery of storage tanks may be taken, in order to check up On the operation of the separator.
  • , 2 la, 22 is arranged at longitudinally spaced points between the two main ducts J4 and 9 connecting the oil collecting and stratification pipes l2 and 15, a number of auxiliary standpipes 2
  • the entire unit 30 may be supported by means of suitable supporting stands 28, 29,
  • An oil and water separator comprising an oil collecting pipe, an admission pipe and an oil discharge pipe, both directly connected with the oil collecting pipe and arranged at substantially the same level, a stratification pipe arranged below the oil collecting pipe, serving as a stratification chamber, a plurality of connecting pipes between said oil collecting pipe and said Stratification pipe, one of these pipes being arranged near the end of the oil collecting pipe connected with the oil admission pipe and another near the end connected with the oil discharge pipe, and defleeting bailles in said oil collecting pipe arranged directly behind the two last named connecting pipes.
  • An oil and water separator comprising an oil collecting pipe extending in a horizontal direction and divided into three chambers, communicating with each other, two deflecting battles inter, larger than the -oil collecting pipe arranged A while the oil on top backs up and is elevated through the pipes 2
  • bafile plates permits to arrange the inlet pipe, the oil collecting pipe and the discharge pipe at the same level in a straight line, eliminates the necessity for reducing the pressure to the zero level at the entrance or at the discharge end reduces the velocity of the flow through the oil collecting pipe and prevents the water which may have penetrated into the oil collecting pipe from getting into the discharge chamber.
  • the elimination of emulsions of oil and water in this construction maintains a higher point of gravity of the oil. The latter will therefore be lowered as a result of separation in this construction.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
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Description

July 8, 1947. w, QLIVQ ET AL 2,423,793
OIL AND WATER SEPARATOR HAVING A COLLECTING PIPE AND-A STRATIFICATION PIPE THEBEBELOW Filed Feb. 2, 1944 5 3 20 v f f" Q it ,5
jg, Z,
O) j I Inventor Q) Java; 02220 F Joseph/ B. 7 errel b B, @Mm
min may 5M3? 'flcation pipe,
Patented July 8, 1947 OIL AND. WATER SEPARATOR HAVING A COLLECTING PIPE AND A STRATIFICA- TION PIPE THEREBELOW Walter L. Olive andlliseph B. Terrell, Denver City, Tex.
Application February 2, 1944, Serial No. 520,806
2 Claims. 1
This invention relates to oil and water separators and has reference, more in particular, to a so-called water knock-out trap for both pumper and pressure wells, and the principal object is to generally and specifically improve upon presently known similarly constructed traps, this through the adoption and use of a unitary construction of utmost simplicity aptly and ideally suited for the purposes intended.
Oil and water separators hitherto known are rather complex structures usually provided with a stratiflcation chamber into which the oil mixed with water enters. As the stratiflcation chamber of such a water trapcan hardly have the requisite height to exclude withdrawal of gas or water with the oil, a standpipe, and oil, gas and water heads have to be added from which the stratifled fluids may be withdrawn at levelssufllc'iently different is admitted and from which the oil, when entirely freed from water, is withdrawn. This oil pipe cooperates with a stratiflcation pipe arranged below and communicating with it by means of vertical pipes. It is provided with a number of deflector partitions or baflies directing the inflowing oil towards the-Stratification pipe and reducing the velocity of the flow towards the outlet. The oil pipe forms a straight communication between the inlet of the oil and its outlet. The deflectors or baflies divide it into sections. In the flrst section near the inlet end the oil and the water carried by it is deflected into the strati- The middle section is filled with oil rising through the vertical pipes from the stratiflcation pipe. The deflecting baflle at the end of this section directs any water which may have been carried into-this section by direct inflow or otherwise into the stratiflcation pipe. The latter, which is located in a separate branch, permits complete stratiflcation and separation of the water and oil without causing emulsiflcation.
Another object of the invention is the provision of a compact and convenient assemblage of coacting parts so designed and coordinated as to minimize the presence of obstructive turns, this to prevent the formation of emulsions, to maintain the desired uniform pressure and circulatory action and insuring a steady and direct flow of fluid from the time it enters the trap until it leaves the trap by especially arranged discharge devices.
Further, in carrying out the principles of the invention the preferred structural embodiment is such as to simplify the task of operation of the attendant, to obviate the likelihood of the component parts getting out of order and to promote safety by use of a well balanced adaptation substantially free from blow-outs and breakdowns.
Other objects, features and advantages of the invention will become more readily apparent from the following description and the accompanying illustrative drawings.
In the drawings, wherein like numerals are employed to designate like parts throughout the views:
Figure 1 is an elevational view of the complete trap construction showing how it is operatively connected with a conventional oil well.
Figure 3 is a similar fragmentary sectional view of the oil discharge chamber.
In the modification of the invention, as illustrated, the separator unit 30 for separating oil, water and sand consists mainly of two chambers formed by pipes I2 and I5 which are arranged one below the other, and are connected by a number of vertical tubes and standpipes l4, 2|, 21a, 22 and I9. Into this unit the oil from the well, which is mixed with water and sand, is fed from the well tube 4 leading from the well which is provided, with a head 5 connected with a tube 6 provided with a valve I. This tube is, in its turn, connected with an admission pipe 9 which leads to the upper pipe I2 of the unit 30 forming the oil collecting pipe. The admission pipe 9 may be connected with the pipe 6 by means of a fitting carrying a pressure gauge 8,
The admission pipe 9 is connected with the intake nipple ID of the oil collectin pipe I2 which is of reduced cross section and which opens into anadmission chamber ll formed within the oil collecting pipe l2 at its entrance or admission end by means of a deflector bailie l3 which fills part of the cross section of pipe I2 but leaves the upper part open for communication of the chamber H with the remainder of the pipe 12 as seen in Figure 2. In front of the deflector bafile the main vertical separator duct I4 is arranged, which conthe deflecting battle is is somewhat forwardly inclined and may be suitably curved. It thus faces the incoming jet entering under pressure through the restricted cross section at the end of the pipe [2 and being placed directly behind the main vertical duct 14, it will deflect the said jet and cause it to flow downwardly through the said main duct l4 into the stratification pipe [5.
The stratification pipe 15 is longer and of greater diameter than the oil collecting pipe 12 and it is moreover inclined with respect thereto and with respect to the horizontal.
Near the discharge end of the oil collecting pipe a discharge chamber I6 is formed by means of another baille 20, partly filling the cross section of the tube and arranged directly behind another vertical connecting pipe l9 leading from the oil collecting pipe 12 to the stratification pipe 15. This discharge chamber 16 ends in a reducing nipple H to which the oil discharge pipe I8 is connected. The latter leads to a so-called flow beam or sampling case 26 provided with a valve or sampling cook 27 from which samples of the oil flom'ng to the clean oil or flow line 25 and to the battery of storage tanks may be taken, in order to check up On the operation of the separator.
At longitudinally spaced points between the two main ducts J4 and 9 connecting the oil collecting and stratification pipes l2 and 15, a number of auxiliary standpipes 2|, 2 la, 22 is arranged. They gradually increase as regards their vertical length on account of the inclination of the stratification pipe towards the horizontal. On account of this inclination the aft part of the stratification pipe will be filled mainly with water and sand, the latter sinking and being carried to the outlet end of the stratification pipe which is located at the lowest point. At this point a drain or dump pipe 24 is arranged for carrying off the water and sand to a suitable place of deposit. This pipe may be provided with a valve 23.
The entire unit 30 may be supported by means of suitable supporting stands 28, 29,
In operation the incoming column of fluid enters the chamber ll of the oil collecting pipe 12 and is deflected by the deflecting baiile 13 down through the duct l4 into the intake end of the stratification pipe l5. Here the sand gravitates to the bottom and the oil floats on the top of the water. The sand and water follow the arrows 4 within the field of invention claimed without departing from the essence oi the invention, as the principles underlying our invention have been clearly described in such terms as to indicate the essential points oi. the invention,
Having described the invention, what is claimed as new is: I
1. An oil and water separator comprising an oil collecting pipe, an admission pipe and an oil discharge pipe, both directly connected with the oil collecting pipe and arranged at substantially the same level, a stratification pipe arranged below the oil collecting pipe, serving as a stratification chamber, a plurality of connecting pipes between said oil collecting pipe and said Stratification pipe, one of these pipes being arranged near the end of the oil collecting pipe connected with the oil admission pipe and another near the end connected with the oil discharge pipe, and defleeting bailles in said oil collecting pipe arranged directly behind the two last named connecting pipes.
2. An oil and water separator comprising an oil collecting pipe extending in a horizontal direction and divided into three chambers, communicating with each other, two deflecting battles inter, larger than the -oil collecting pipe arranged A while the oil on top backs up and is elevated through the pipes 2|, 22 and 19 into the oil collecting pipe I2 as indicated by the arrows B.
As the number of turns in the construction is reduced to a minimum there is virtually no likelihood of an emulsification of oil and water after it enters the trap. The use of simple bafile plates permits to arrange the inlet pipe, the oil collecting pipe and the discharge pipe at the same level in a straight line, eliminates the necessity for reducing the pressure to the zero level at the entrance or at the discharge end reduces the velocity of the flow through the oil collecting pipe and prevents the water which may have penetrated into the oil collecting pipe from getting into the discharge chamber. The elimination of emulsions of oil and water in this construction maintains a higher point of gravity of the oil. The latter will therefore be lowered as a result of separation in this construction.
Persons skilled in the art to which the invention relates will be able to make changes in the shape, size and arrangement of details coming below said oil collecting pipe in inclined position with respect to the same, a main separator duct leading from said admission chamber to said stratification pipe arranged directly in front of the deflecting baffle of said chamber, a second vertical connecting pipe leading from the stratification chamber to said central chamber arranged directly in front of the deflecting baiile of the dis 7 charge chamber and a discharge pipe for water and sand connected with the lower end of the stratification pipe. v
WALTER L. OLIVO.
JOSEPH B. TERRELL.
REFERENCES CITED The following references are of record in the file of this patent:
1 UNITED STATES PATENTS Number Name Date 1,559,115 Marker et a1 Oct. 27, 1925 1,714,338 Yelmgren May 21, 1929 1,619,713 Frean Mar. 1, 1927 1,458,234 Miller June 12, 1923 1,468,193 Carter Sept, 18, 1923 1,494,670 Delaney et a1 May 20, 1924 1,516,132 Allen W. R.'et al. Nov. 13, 1924 1,939,988 Knoles Dec. 19. 1933 1,496,090 Marker et a1 June 3, 1924 2,229,732 Goldsmith Jan. 28, 1941 1,157,902 Reynolds Oct. 26, 1915 1,762,538 Worthington June 10, 1930 787,367 French Apr. 18, 1905 1,625,709 Conrad 1 Apr. 19, 1927 1,754,119 Pink Apr. 8, 1930 2,150,437 Gilbert Mar, 14, 1939' Forbes et al. Jan. 27, 1903
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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2604209A (en) * 1947-03-19 1952-07-22 Earl D Hall Boiler water reclaiming device
US2638223A (en) * 1950-03-13 1953-05-12 Asbury S Parks Liquid knockout apparatus
US2986279A (en) * 1960-03-18 1961-05-30 Walter W Henigman Separation system
US4400271A (en) * 1981-08-11 1983-08-23 Lunceford Randy L Captive air system for water well
WO2007071664A1 (en) * 2005-12-21 2007-06-28 Shell Internationale Research Maatschappij B.V. System and method for separating a fluid stream
US20110266228A1 (en) * 2010-05-03 2011-11-03 Petroleos de Venezuela S.A. Production fluid solid trap
WO2011161343A1 (en) * 2010-06-23 2011-12-29 Saipem S.A. Modular device for liquid/liquid gravity separation
US20130134109A1 (en) * 2011-11-29 2013-05-30 Bonavista Energy Corporation Settling vessel and method of use
US20140064854A1 (en) * 2012-08-30 2014-03-06 NJect Disposal LLC Waste water disposal system
US9095799B1 (en) * 2013-03-12 2015-08-04 John Henry Packard Debris catcher and sand trap for pipeline
US9371724B2 (en) * 2012-07-27 2016-06-21 Exxonmobil Upstream Research Company Multiphase separation system
US20160317950A1 (en) * 2015-04-29 2016-11-03 China Petroleum & Chemical Corporation Separator for oil well produced fluid, and separation device comprising the same
WO2017021397A1 (en) * 2015-08-03 2017-02-09 Grünenthal GmbH Phase separator
US20180250611A1 (en) * 2015-08-27 2018-09-06 General Electric Company Apparatus and method for gravity separation and contained oil and natural gas production systems and methods
US10384154B2 (en) * 2015-12-23 2019-08-20 Gasteq Inc. High pressure sand trap with screen
WO2021080436A1 (en) * 2019-10-23 2021-04-29 Equinor Energy As Separator

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US719319A (en) * 1902-06-17 1903-01-27 Joseph C Forbes Water purifier and heater.
US787367A (en) * 1904-10-21 1905-04-18 Alton L French Steam-trap.
US1157902A (en) * 1915-06-23 1915-10-26 John E Reynolds Apparatus for preventing the emulsification of oil from wells.
US1458234A (en) * 1922-11-06 1923-06-12 Standard Oil Co Separating solids from liquids
US1468193A (en) * 1922-01-16 1923-09-18 Lester L Carter Gas and water separator for oil wells
US1494670A (en) * 1923-07-27 1924-05-20 Delaney Rasneor Company Inc Separator for flowing oil wells
US1496090A (en) * 1922-07-05 1924-06-03 William M Marker Trapped outlet separator
US1516132A (en) * 1923-02-26 1924-11-18 William R Allen Oil and water stratifying device
US1559115A (en) * 1922-07-05 1925-10-27 William M Marker Throttled outlet separator
US1619713A (en) * 1925-10-28 1927-03-01 Frean Norman Alfred Trap device for separating water from petrol
US1625709A (en) * 1926-03-06 1927-04-19 Bertha L Conrad Sediment trap for boilers
US1714338A (en) * 1927-12-12 1929-05-21 Yelmgren Sven August Catch bowl for oil trucks, oil pumps, and pipe lines
US1754119A (en) * 1928-01-27 1930-04-08 Pink Frank Apparatus for separating liquids of different densities
US1762538A (en) * 1923-04-16 1930-06-10 Petroleum Rectifying Co Water-level-controlling device
US1939988A (en) * 1931-06-11 1933-12-19 Thomas F Knoles Automatic oil purifier
US2150437A (en) * 1933-02-02 1939-03-14 Du Pont Metal recovery
US2229732A (en) * 1937-10-25 1941-01-28 Atlantic Refining Co Rust separator for pipe lines

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US719319A (en) * 1902-06-17 1903-01-27 Joseph C Forbes Water purifier and heater.
US787367A (en) * 1904-10-21 1905-04-18 Alton L French Steam-trap.
US1157902A (en) * 1915-06-23 1915-10-26 John E Reynolds Apparatus for preventing the emulsification of oil from wells.
US1468193A (en) * 1922-01-16 1923-09-18 Lester L Carter Gas and water separator for oil wells
US1559115A (en) * 1922-07-05 1925-10-27 William M Marker Throttled outlet separator
US1496090A (en) * 1922-07-05 1924-06-03 William M Marker Trapped outlet separator
US1458234A (en) * 1922-11-06 1923-06-12 Standard Oil Co Separating solids from liquids
US1516132A (en) * 1923-02-26 1924-11-18 William R Allen Oil and water stratifying device
US1762538A (en) * 1923-04-16 1930-06-10 Petroleum Rectifying Co Water-level-controlling device
US1494670A (en) * 1923-07-27 1924-05-20 Delaney Rasneor Company Inc Separator for flowing oil wells
US1619713A (en) * 1925-10-28 1927-03-01 Frean Norman Alfred Trap device for separating water from petrol
US1625709A (en) * 1926-03-06 1927-04-19 Bertha L Conrad Sediment trap for boilers
US1714338A (en) * 1927-12-12 1929-05-21 Yelmgren Sven August Catch bowl for oil trucks, oil pumps, and pipe lines
US1754119A (en) * 1928-01-27 1930-04-08 Pink Frank Apparatus for separating liquids of different densities
US1939988A (en) * 1931-06-11 1933-12-19 Thomas F Knoles Automatic oil purifier
US2150437A (en) * 1933-02-02 1939-03-14 Du Pont Metal recovery
US2229732A (en) * 1937-10-25 1941-01-28 Atlantic Refining Co Rust separator for pipe lines

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2604209A (en) * 1947-03-19 1952-07-22 Earl D Hall Boiler water reclaiming device
US2638223A (en) * 1950-03-13 1953-05-12 Asbury S Parks Liquid knockout apparatus
US2986279A (en) * 1960-03-18 1961-05-30 Walter W Henigman Separation system
US4400271A (en) * 1981-08-11 1983-08-23 Lunceford Randy L Captive air system for water well
WO2007071664A1 (en) * 2005-12-21 2007-06-28 Shell Internationale Research Maatschappij B.V. System and method for separating a fluid stream
US20080272059A1 (en) * 2005-12-21 2008-11-06 Jill Hui Chiun Chieng System and Method for Separating a Fluid Stream
US7611635B2 (en) 2005-12-21 2009-11-03 Shell Oil Company System and method for separating a fluid stream
AU2006328485B2 (en) * 2005-12-21 2009-12-17 Shell Internationale Research Maatschappij B.V. System and method for separating a fluid stream
US8454843B2 (en) * 2010-05-03 2013-06-04 Petroleos De Venezuela, S.A. Production fluid solid trap
US20110266228A1 (en) * 2010-05-03 2011-11-03 Petroleos de Venezuela S.A. Production fluid solid trap
US8551345B2 (en) 2010-05-03 2013-10-08 Petroleos De Venezuela, S.A. Production fluid solid trap
FR2961712A1 (en) * 2010-06-23 2011-12-30 Saipem Sa MODULAR DEVICE FOR SEPARATING GRAVITY LIQUID / LIQUID
US9080442B2 (en) 2010-06-23 2015-07-14 Saipem S.A. Modular device for liquid/liquid gravity separation
WO2011161343A1 (en) * 2010-06-23 2011-12-29 Saipem S.A. Modular device for liquid/liquid gravity separation
US20130134109A1 (en) * 2011-11-29 2013-05-30 Bonavista Energy Corporation Settling vessel and method of use
US8945395B2 (en) * 2011-11-29 2015-02-03 Bonavista Energy Corporation Settling vessel and method of use
US9371724B2 (en) * 2012-07-27 2016-06-21 Exxonmobil Upstream Research Company Multiphase separation system
US20140064854A1 (en) * 2012-08-30 2014-03-06 NJect Disposal LLC Waste water disposal system
US9095799B1 (en) * 2013-03-12 2015-08-04 John Henry Packard Debris catcher and sand trap for pipeline
US20160317950A1 (en) * 2015-04-29 2016-11-03 China Petroleum & Chemical Corporation Separator for oil well produced fluid, and separation device comprising the same
US9981206B2 (en) * 2015-04-29 2018-05-29 China Petroleum & Chemical Corporation Separator for oil well produced fluid, and separation device comprising the same
WO2017021397A1 (en) * 2015-08-03 2017-02-09 Grünenthal GmbH Phase separator
US20180250611A1 (en) * 2015-08-27 2018-09-06 General Electric Company Apparatus and method for gravity separation and contained oil and natural gas production systems and methods
US10639563B2 (en) * 2015-08-27 2020-05-05 Vetco Gray Scandinavia As Apparatus and method for gravity separation and contained oil and natural gas production systems and methods
US10384154B2 (en) * 2015-12-23 2019-08-20 Gasteq Inc. High pressure sand trap with screen
WO2021080436A1 (en) * 2019-10-23 2021-04-29 Equinor Energy As Separator

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