EP0088776B1 - Systeme pour empecher l'entrainement de liquides au nez de torche - Google Patents

Systeme pour empecher l'entrainement de liquides au nez de torche Download PDF

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Publication number
EP0088776B1
EP0088776B1 EP82902735A EP82902735A EP0088776B1 EP 0088776 B1 EP0088776 B1 EP 0088776B1 EP 82902735 A EP82902735 A EP 82902735A EP 82902735 A EP82902735 A EP 82902735A EP 0088776 B1 EP0088776 B1 EP 0088776B1
Authority
EP
European Patent Office
Prior art keywords
flare
gas
liquid
capacity
sea
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
Application number
EP82902735A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0088776A1 (fr
Inventor
Gérard Chaudot
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
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Filing date
Publication date
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Publication of EP0088776A1 publication Critical patent/EP0088776A1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F23G7/08—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases using flares, e.g. in stacks
    • F23G7/085—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases using flares, e.g. in stacks in stacks
    • 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
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/005—Waste disposal systems
    • E21B41/0071—Adaptation of flares, e.g. arrangements of flares in offshore installations
    • 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
    • E21B43/36—Underwater separating arrangements

Definitions

  • the present invention relates to a safety system intended to eliminate any risk of entrainment of liquids at the torch nose, during flaring of the gases associated with the production of hydrocarbons, in particular at sea (off shore).
  • the oil or the condensate entrained by the gas is ignited and falls back in flames on the installation or in the immediate vicinity of it, thus endangering the entire installation and the lives of all staff.
  • one of the best measures adopted to date is constituted by the interposition, between the drive source of liquid hydrocarbons and the nose of the torch, of three capacities, namely, a separator, a safety purifier and a torch foot balloon, mounted in series on the gas flow chain, these capacities being respectively equipped with three high level detection devices, which perform, in the event that the level of liquid exceeds a predetermined height, the shutdown of the installation's hydrocarbon supply.
  • the torch bottom flask has, or may have, a liquid retention capacity, such that it allocates sufficient time for the manual closing of the hydrocarbon supply valves of the installation. .
  • the installation according to patent FR 2407 005 certainly includes a torch foot flask, but it does not include any means for detecting the accumulation of liquids in this flask, nor for discharging these liquids.
  • a pipe fitted with a valve has been provided, but this valve, whether automatic or manual, is subject to blockages and irregularities, thus leading to overflow of liquid hydrocarbons.
  • the invention therefore aims to eliminate all these drawbacks.
  • a safety system intended to eliminate any risk of entrainment of liquids at the torch nose or in the vent, during flaring or dispersion of the gases associated with the production or treatment of hydrocarbons on land and in sea, system of the type comprising a separator which receives the crude hydrocarbons by a supply line and in which the liquids and the gas separate, the liquids being evacuated by a recovery circuit and the gas flowing through at least one line , characterized in that in said gas flow pipe is mounted at least one capacity, such as a torch foot balloon, in which the gas and liquids which have been accidentally entrained by said gas separate, said capacity being provided with an overflow column which stings at a level corresponding to the predetermined maximum level of the liquid in the capacity and which opens below the level of a range of liquid, for example from the sea, at a depth predetermined inverter under its stitching on the capacity.
  • a separator which receives the crude hydrocarbons by a supply line and in which the liquids and the gas separate, the liquids being evacuated
  • a particularly simple and reliable security system is therefore obtained which can supplement or even replace the usual security systems, and which has the advantage of not involving no detection device and no mechanical organ subject to damage.
  • the overflow column in some applications, will be equipped with a discharge device inside it, of various products having the main aims, but not limited to, delaying or preventing the ascent of the liquid hydrocarbons on the surface, reduce, delay or inhibit oil pollution.
  • the torch will be equipped with manual or automatic ignition and extinction means making it possible to initiate or smother the flame in different operating configurations or for safety or other reasons.
  • the installation comprises, first of all, a source of drive for liquid hydrocarbons constituted by a separator 1 receiving the crude oil or the gas by an inlet pipe 2.
  • This separator is equipped conventionally of a circuit 3 for normal recovery of oil or condensates and a gas outlet connected to a gas flow chain 4 to the nose 5 of the torch.
  • This gas flow chain 4 comprises, between the separator 1 and the nose of the torch 5, a torch base balloon 6 equipped, in a conventional manner, with a drip recovery circuit 7 comprising or not a pump 8 .
  • the separator 1 and the torch bottom flask 6 are both equipped with a high level detection circuit, intended to shut off, in the event of an abnormally high liquid level, the supply of crude or gas to the installation. .
  • this installation comprises an overflow column 10 coming to be pricked (tapping 11) on the torch foot ball 6 at a location corresponding to a predetermined maximum level and opening below sea level 12 at a distance L R below the tap 11 on said balloon 6.
  • This overflow column 10 is equipped with the above-mentioned spill device 14 ′ and means 13 ′ for taking up liquid hydrocarbons which have overflowed into the overflow column in order to reinsert them into the normal treatment circuits.
  • These recovery means will consist, for example, of pumps of various types or liquid or gas ejectors (gas lift). They can be installed during the construction of the installation or, later, be removable or not.
  • the two level detection systems will inform operators of a malfunction, and will cut off the arrival of rough if the fault cannot be corrected.
  • the volume of liquid "trapped" in the overflow column can be reassembled in the installations and evacuated.
  • the liquids are put into the sea “at source", that is to say that a large hot spot will be needed in the area where the liquid hydrocarbons will reach the surface of the sea to cause their ignition.
  • the water level inside the overflow column 10 will follow the water level outside with delay and damping. However, this point must be checked in order to avoid air entering the torch barrel 13, especially in the case of short overflow columns 10 and low gas flow rates. Generally, the longer the overflow column 10, the less the wave effect will be felt.
  • This separator 15 can be hidden in the tower 16 supporting the torch. It operates at very low level and low pressure.
  • the overflow column 10 can optionally be expanded to form a retention capacity 17, thus avoiding any pollution for a limited period.
  • the liquid hydrocarbons thus trapped can be reinserted later in the installations by means 13.
  • the lower part of column 10 may be screened laterally in order to better disperse the liquid hydrocarbons in the sea.
  • FIG. 3 presents a simplified solution.
  • the vertical torch barrel 20 is constituted by a tube of variable or non-variable cross-section which can be in certain applications self-resistant to external stresses, and of a diameter such that the rising speed of the gas is sufficiently low so that the gas / liquid separation takes place.
  • the gas can be speeded up if necessary at the torch nose 5 by passing through a reduced tubular section 21 or by other means.
  • the lower end 22 of the torch barrel serves as a torch foot balloon in normal service, and is equipped with an overflow column 10 such as those previously described as well as a drip recovery circuit 7, 8 and 13.
  • An additional simplification will consist, for certain applications, in producing the overflow torch-column assembly, in a continuous tubing, of possibly variable section, the drip recovery circuit then being installed at a suitable altitude on the continuous tubing.
  • the latter may use, for its production, parts of already existing tubing, made of steel or other materials, such as than concrete, and can fulfill other functions such as supporting installations. Its support can also be carried out using frames or supports required or not to fulfill other functions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Detergent Compositions (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP82902735A 1981-09-23 1982-09-23 Systeme pour empecher l'entrainement de liquides au nez de torche Expired EP0088776B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8117969A FR2513356A1 (fr) 1981-09-23 1981-09-23 Systeme de securite destine a eliminer tout risque d'entrainement de liquides au nez de torche ou a l'event, lors du torchage ou de la dispersion des gaz associes a la production ou au traitement d'hydrocarbures a terre et en mer
FR8117969 1981-09-23

Publications (2)

Publication Number Publication Date
EP0088776A1 EP0088776A1 (fr) 1983-09-21
EP0088776B1 true EP0088776B1 (fr) 1985-10-23

Family

ID=9262405

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82902735A Expired EP0088776B1 (fr) 1981-09-23 1982-09-23 Systeme pour empecher l'entrainement de liquides au nez de torche

Country Status (8)

Country Link
US (1) US4547149A (oth)
EP (1) EP0088776B1 (oth)
BR (1) BR8207865A (oth)
DE (1) DE3267050D1 (oth)
FR (1) FR2513356A1 (oth)
NO (1) NO831828L (oth)
OA (1) OA08943A (oth)
WO (1) WO1983001086A1 (oth)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2523271B2 (fr) * 1982-03-12 1986-01-10 Chaudot Gerard Systeme de securite perfectionne, destine a eliminer tout risque d'entrainement de liquides au nez de torche ou a l'event, lors du torchage ou de la dispersion des gaz associes a la production
CA1274785A (en) * 1989-09-29 1990-10-02 Robert Karl Rajewski Vapour tight environmental protection oil battery
US5477924A (en) * 1994-12-20 1995-12-26 Imodco, Inc. Offshore well gas disposal
GB9921373D0 (en) * 1999-09-10 1999-11-10 Alpha Thames Limited Modular sea-bed system
FR2808455B1 (fr) * 2000-05-03 2003-02-14 Schlumberger Services Petrol Installation et procede pour la separation d'effluents multiphasiques
WO2002031309A2 (en) * 2000-10-13 2002-04-18 Schlumberger Technology B.V. Methods and apparatus for separating fluids
CN103256609B (zh) * 2013-06-05 2015-04-08 上海同济高科技发展有限公司 火炬塔双侧轨道火炬筒体制动装置
US20240173649A1 (en) * 2022-11-28 2024-05-30 Ronald Williams Methods to drawdown pipe sections with the use or regulation control of flaring and cross-compression technique

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1567815A (en) * 1924-06-05 1925-12-29 Ravenor Wilfred Francis Safety feed for oil burners
US3658015A (en) * 1970-04-15 1972-04-25 Dresser Ind Explosive-proof method and incinerator for burning drill cuttings
US3745773A (en) * 1971-06-16 1973-07-17 Offshore Recovery Syst Inc Safety off shore drilling and pumping platform
BE790646A (fr) * 1971-10-29 1973-02-15 Erap Installation pour la separation de fond des effluents des puitsproducteurs d'un champ petrolier marin
FR2195326A5 (oth) * 1972-08-04 1974-03-01 Aquitaine Petrole
US3881549A (en) * 1973-04-27 1975-05-06 Interseas Associates Production and flare caisson system
US4147495A (en) * 1977-10-26 1979-04-03 Combustion Unlimited Incorporated Waste gas dispersion stack
FR2473615A1 (fr) * 1979-11-16 1981-07-17 Inst Francais Du Petrole Dispositif antipollution pour puits petrolier immerge, comprenant un organe adapte a venir coiffer la tete du puits

Also Published As

Publication number Publication date
OA08943A (fr) 1990-11-30
DE3267050D1 (en) 1985-11-28
BR8207865A (pt) 1983-08-30
FR2513356B1 (oth) 1984-01-13
FR2513356A1 (fr) 1983-03-25
NO831828L (no) 1983-05-24
US4547149A (en) 1985-10-15
WO1983001086A1 (fr) 1983-03-31
EP0088776A1 (fr) 1983-09-21

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