WELL DEVICE FOR HEAT CARRIER INJECTION TO STRATUM

FIELD: mining. ^ SUBSTANCE: device includes wellhead, injection tubing made of hollow compressor pump pipes of lesser diametre positioned concentrically in compressor pump pipes of larger diametre with heat-resistant packer stopping operational column over the stratum. Lower part of compressor pump...

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Main Authors ZAKIROV AJRAT FIKUSOVICH, IBRAGIMOV NAIL' GABDULBARIEVICH, DZHAFAROV MIRZAKHAN ATAKISHI OGLY, OZHEREDOV EVGENIJ VITAL'EVICH, TAZIEV MIRGAZIJAN ZAKIEVICH
Format Patent
LanguageEnglish
Russian
Published 20.09.2008
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Summary:FIELD: mining. ^ SUBSTANCE: device includes wellhead, injection tubing made of hollow compressor pump pipes of lesser diametre positioned concentrically in compressor pump pipes of larger diametre with heat-resistant packer stopping operational column over the stratum. Lower part of compressor pump pipe string of larger diametre carries a cylinder and nipple in downside sequence, the nipple being equipped with poppet valve, self-sealing packer and protection casing with traverse rod passing through longitudinal nipple holes. Injection string shoe features hollow plunger in the form of a pin with sealing rings and is positioned in the internal cylinder cavity so as to actuate plate valve, while the plate valve rod actuates protection casing of self-sealing packer over the traverse rod. Lower sealed end of the hollow plunger is conical and has side holes. Injection string features centering skids made of non-heat conducting material. ^ EFFECT: increased thermal stratum processing efficiency due to minimisation of heat loss in the well hole during heat carrier injection. ^ 3 dwg
Bibliography:Application Number: RU20070132953