SHORT-CHAIN FLUOROCARBON-GRAFTED ELASTORMER BLOWOUT PREVENTER PACKERS AND SEALS FOR ENHANCED H2S RESISTANCE

SHORT-CHAIN FLUOROCARBON-GRAFTED ELASTORMER BLOWOUT PREVENTER PACKERS AND SEALS FOR ENHANCED H2S RESISTANCE

A packer unit to be used in an annular blowout preventer is provided. The packer unit includes an elastomer body including a compound of a nitrile rubber base polymer having a polymer chain, and a quantity of fluorine atoms attached to the polymer chain. The compound includes between 50 and 60% of t...

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Bibliographische Detailangaben
Hauptverfasser: DONG YUHUA, JOHNSON READY JOSEPH, MCLAUGHLIN JOHN, PUTNAM ZACKARY, HUANG MING YU, KRISHNAN SITARAMAN, LUO MIAO
Format: Patent
Sprache:chi ; eng
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Zusammenfassung:A packer unit to be used in an annular blowout preventer is provided. The packer unit includes an elastomer body including a compound of a nitrile rubber base polymer having a polymer chain, and a quantity of fluorine atoms attached to the polymer chain. The compound includes between 50 and 60% of the nitrile elastomer, between 25 to 35% carbon black, and the rest includes other materials. The quantity of fluorine atoms comprises short-chain fluorocarbon chain molecules The quantity of fluorine atoms displaces at least an equal quantity of hydrogen atoms from the polymer chain when the elastomer body is fluorinated. 提供种用于环状防喷器的封隔器单元。所述封隔器单元包括弹性体主体，所述弹性体主体包括具有聚合物链的丁腈橡胶基础聚合物的复合物和连接到聚合物链的定量的氟原子。所述复合物包含50-60%的丁腈弹性体，25-35%的炭黑，且剩余部分包含其他材料。所述量的氟原子包括短链氟烃链分子。当弹性体主体被氟化时，所述量的氟原子从聚合物链置换至少等量的氢原子。