GB1408054A - Apparatus for degassing fluids and centrifugal pumps for handling gas-laden fluids - Google Patents
Apparatus for degassing fluids and centrifugal pumps for handling gas-laden fluidsInfo
- Publication number
- GB1408054A GB1408054A GB4384472A GB4384472A GB1408054A GB 1408054 A GB1408054 A GB 1408054A GB 4384472 A GB4384472 A GB 4384472A GB 4384472 A GB4384472 A GB 4384472A GB 1408054 A GB1408054 A GB 1408054A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vessel
- pump
- mud
- gas
- tank
- 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
Links
- 238000007872 degassing Methods 0.000 title abstract 8
- 239000012530 fluid Substances 0.000 title abstract 6
- 239000007788 liquid Substances 0.000 abstract 4
- 239000011800 void material Substances 0.000 abstract 4
- 241000409716 Anisus vortex Species 0.000 abstract 1
- 230000002301 combined effect Effects 0.000 abstract 1
- 238000005520 cutting process Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 238000005553 drilling Methods 0.000 abstract 1
- 230000001939 inductive effect Effects 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 239000003129 oil well Substances 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000010409 thin film Substances 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D9/00—Priming; Preventing vapour lock
- F04D9/001—Preventing vapour lock
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0042—Degasification of liquids modifying the liquid flow
- B01D19/0047—Atomizing, spraying, trickling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0042—Degasification of liquids modifying the liquid flow
- B01D19/0052—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0063—Regulation, control including valves and floats
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/067—Separating gases from drilling fluids
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Degasification And Air Bubble Elimination (AREA)
Abstract
1408054 Degassing; centrifugal separation SMITH INTERNATIONAL INC 21 Sept 1972 [27 Sept 1971] 43844/72 Headings B1M and B2P [Also in Division F1] Apparatus for degassing fluids comprises a degassing vessel and a centrifugal pump for pumping fluid through the vessel; the pump comprising an impeller rotatably mounted in a housing having an inlet and an outlet; a chamber having an inlet and an outlet, the outlet of the chamber being also the inlet to the housing; the impeller being arranged in such a way that rotation thereof induces a. vortex in the fluid in the chamber at the eye of which vortex gas accumulates, and means are provided allowing at least a portion of the accumulating gas to be vented through the eye of the vortex in a direction contrary to the general flow of fluid in the chambers. In the embodiment shown in Fig. 1, drilling mud from an oil well, contaminated with drill cuttings and other solids and gas, is returned via a pipe 10 to a return mud tank 11 which communicates with a clean mud tank 13 via a restricted pipe 14. Mud is transferred from tank 11 to tank 13 by a centrifugal pump 46 which is connected to tank 11 via a conduit 19 and a degassing vessel 20. The level of mud in the vessel 20 is controlled by a valve 41 operated by a float 36. Mud entering the vessel 20 impinges upon the valve 41 and is sprayed outwards in fine droplets and then flows in a thin film, firstly over a conical wall 34 and then over the float 36. Since the vessel 20 is maintained at sub-atmospheric pressure by a vacuum pump 42, any gas dissolved or entrained in the mud is released into the space above the liquid level in the vessel 20, whence it is removed by the vacuum pump. A valve 45 controlled by a float 44 controls the subatmospheric pressure in the vessel 20. A generally cylindrical void around the pump shaft 48 is formed within a vortex caused by rotation of the impeller 50. Gas collecting at the eye of the impeller 50 of the pump 46 rises through the void around the pump shaft 48, and part of it passes through the gap between the shaft and an annular baffle 56 to enter a compartment 58 between the baffle and a shaft seal 52, whereby liquid is kept away from the seal. The remainder of the gas is vented to the vessel 20 via a conduit 59 (or may instead be vented to some other low-pressure region). A pocket of returned gas collecting below a baffle 59a prevents liquid from flowing down the conduit 59. The compartment 58 may be vented to atmosphere. The pump 46 may be disposed at an angle to the vertical, provided the seal 52 is at a higher level than the impeller 50. In a modification, Figs. 2 and 3 (not shown), the pump (46) is located outside the tank (13) and closely adjoining the degassing vessel (20a), the mud flowing from the vessel to the pump via a scroll-shaped casing which promotes a gas-releasing vortex around the shaft (48). The released gas passes to the vessel above the level of the mud flowing from the vessel to the pump, Fig. 5 shows an arrangement in which the pump is mounted immediately below an exit opening 20d from the degassing vessel 20c and discharges the mud to the tank 13 via a pipe 105. A vortex is set up in the mud flowing from the vessel to the pump by the combined effect of spiral fins 109 and the impeller rotation, whereby a void 106 is produced. The gas released at the impeller eye passes through the void 106 into a space 115 afforded by the concave bottom 114 of a float 113 which replaces the float 36 of Fig. 1, and then passes via a conduit 116 to the air space above the liquid level in the vessel. The pump 140, Fig. 7, may be mounted within the return mud tank 161, discharging via a pipe 126 to the degassing vessel 120, which in turn discharges the degassed mud through an opening 124 into the clean mud tank 125. Mud is drawn into the pump through a circumferential inlet 151 having vortex-inducing vanes 148, the gas released at the impeller eye being vented to atmosphere via the open end 164 of the pump casing. A spring-biased valve 134 performs the same functions as the float-operated valve 41 of Fig. 1. The gas released in the vessel 120 is vented to atmosphere via a vent 128. The valve 134 may be omitted, its functions then being performed by a flexible top wall of the vessel 120, the exit end 127 of the pipe 126 then being located close to this top wall.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18377571A | 1971-09-27 | 1971-09-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1408054A true GB1408054A (en) | 1975-10-01 |
Family
ID=22674227
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4384472A Expired GB1408054A (en) | 1971-09-27 | 1972-09-21 | Apparatus for degassing fluids and centrifugal pumps for handling gas-laden fluids |
Country Status (6)
Country | Link |
---|---|
US (1) | US3769779A (en) |
JP (1) | JPS4872766A (en) |
AR (1) | AR195977A1 (en) |
DE (1) | DE2247059A1 (en) |
FR (1) | FR2154612B1 (en) |
GB (1) | GB1408054A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5449454A (en) * | 1993-01-13 | 1995-09-12 | Aquaria, Inc. | Gas expelling device for a canister type filter |
CN113144722A (en) * | 2021-04-06 | 2021-07-23 | 广汉市阿里圣姆石油设备有限公司 | Negative pressure vibrating screen |
CN113915173A (en) * | 2021-11-27 | 2022-01-11 | 深圳市建成机电设备有限公司 | Mixed liquid backflow mechanism of water treatment machine |
CN114534319A (en) * | 2022-03-04 | 2022-05-27 | 南京贝特空调设备有限公司 | Device for realizing dynamic vacuum degassing |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4046528A (en) * | 1975-04-28 | 1977-09-06 | Smith International, Inc. | Degassing system |
US3992297A (en) * | 1976-02-18 | 1976-11-16 | Baughcom Elisha J | Oil separator device |
JPS52140974A (en) * | 1976-05-19 | 1977-11-24 | Matsushita Electric Ind Co Ltd | De-aerating device |
US4269567A (en) * | 1976-12-27 | 1981-05-26 | Dresser Industries, Inc. | Mud degasser pump |
GB1591899A (en) * | 1976-12-27 | 1981-07-01 | Dresser Ind | Degasser spray vessel |
US4088457A (en) * | 1976-12-27 | 1978-05-09 | Dresser Industries, Inc. | Degasification system |
US4097249A (en) * | 1976-12-27 | 1978-06-27 | Dresser Industries, Inc. | Method of fluid degassing |
US4331458A (en) * | 1977-12-30 | 1982-05-25 | Smith International, Inc. | Degassing system and centrifugal pump |
US4394140A (en) * | 1977-12-30 | 1983-07-19 | Smith International, Inc. | Degassing system and centrifugal pump |
US4152125A (en) * | 1978-01-09 | 1979-05-01 | Dresser Industries, Inc. | Drilling fluid processing system |
US4365977A (en) * | 1981-02-03 | 1982-12-28 | Nl Industries, Inc. | Drilling mud degasser |
HU184906B (en) * | 1981-12-01 | 1984-11-28 | Richter Gedeon Vegyeszet | Device for furthering liquid and separating gases sepregating from liquid |
US4597950A (en) * | 1983-05-05 | 1986-07-01 | Bechtel International Corporation | Gas separating-crystallizer |
SE508348C2 (en) * | 1996-03-27 | 1998-09-28 | Sunds Defibrator Ind Ab | Method and apparatus for pumping a gas-containing medium in which the gas is evacuated by the suction action of an ejector |
US6391094B2 (en) * | 2000-07-19 | 2002-05-21 | Daniel A. Ramos | Method and apparatus for removing gas from drilling mud |
US7947112B1 (en) | 2007-07-16 | 2011-05-24 | Rheodyne, Llc | Method for degassing a fluid |
US9528335B2 (en) * | 2013-05-20 | 2016-12-27 | Halliburton Energy Services, Inc. | Air-driven degasser assembly |
US20150247501A1 (en) * | 2014-02-28 | 2015-09-03 | Flow Control LLC | Anti-airlock valve assembly |
US10035084B2 (en) * | 2016-05-05 | 2018-07-31 | Cook and Cook Incorporated | De-aeration system and method |
IT202100026243A1 (en) * | 2021-10-13 | 2023-04-13 | Angelo Perugini | SELF-FILTERING VACUUM PUMP WITH PRESSURE LIQUID BULK. |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2962114A (en) * | 1957-09-09 | 1960-11-29 | Paul A Medearis | Oil well drilling mud degassing equipment |
US3241295A (en) * | 1963-09-11 | 1966-03-22 | Bass Brothers Entpr Inc | Drilling mud degassers for oil wells |
NL6404199A (en) * | 1964-04-17 | 1965-10-18 | ||
US3255576A (en) * | 1964-10-02 | 1966-06-14 | United Gas Corp | Mud degasser |
US3421289A (en) * | 1966-09-13 | 1969-01-14 | Nash Engineering Co | Vaporizable liquid storage receiver recovery method |
US3616599A (en) * | 1970-02-19 | 1971-11-02 | Thermotics | Method and apparatus for the degasification of drilling muds |
-
1971
- 1971-09-27 US US00183775A patent/US3769779A/en not_active Expired - Lifetime
-
1972
- 1972-09-21 GB GB4384472A patent/GB1408054A/en not_active Expired
- 1972-09-26 DE DE19722247059 patent/DE2247059A1/en not_active Ceased
- 1972-09-26 FR FR7234069A patent/FR2154612B1/fr not_active Expired
- 1972-09-26 AR AR244289A patent/AR195977A1/en active
- 1972-09-27 JP JP47096257A patent/JPS4872766A/ja active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5449454A (en) * | 1993-01-13 | 1995-09-12 | Aquaria, Inc. | Gas expelling device for a canister type filter |
CN113144722A (en) * | 2021-04-06 | 2021-07-23 | 广汉市阿里圣姆石油设备有限公司 | Negative pressure vibrating screen |
CN113144722B (en) * | 2021-04-06 | 2022-08-09 | 广汉市阿里圣姆石油设备有限公司 | Negative pressure vibrating screen |
CN113915173A (en) * | 2021-11-27 | 2022-01-11 | 深圳市建成机电设备有限公司 | Mixed liquid backflow mechanism of water treatment machine |
CN113915173B (en) * | 2021-11-27 | 2022-09-27 | 深圳市建成机电设备有限公司 | Water affair processing machinery mixes liquid backward flow mechanism |
CN114534319A (en) * | 2022-03-04 | 2022-05-27 | 南京贝特空调设备有限公司 | Device for realizing dynamic vacuum degassing |
CN114534319B (en) * | 2022-03-04 | 2023-08-29 | 南京贝特空调设备有限公司 | Device for realizing dynamic vacuum degassing |
Also Published As
Publication number | Publication date |
---|---|
JPS4872766A (en) | 1973-10-01 |
FR2154612B1 (en) | 1978-05-19 |
AR195977A1 (en) | 1973-11-23 |
FR2154612A1 (en) | 1973-05-11 |
DE2247059A1 (en) | 1973-04-05 |
US3769779A (en) | 1973-11-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |