Combined operation string for natural gas well production

A combined operation string for natural gas well production is characterized in that the lower end of an oil string 1 is sequentially connected with a hydraulic anchor 2, a packer 3, a sand blower 4, a releaser 8 and a perforating gun 9. The combined operation string with simple structure, convenien...

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Bibliographic Details
Main Authors ZHANG YINGAN, WANG ZHICHAO, YIN GUOJUN, LIU CHUNYU, ZHANG WENJIN, ZHU YUJUN, WANG FENG
Format Patent
LanguageChinese
English
Published 27.01.2010
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:A combined operation string for natural gas well production is characterized in that the lower end of an oil string 1 is sequentially connected with a hydraulic anchor 2, a packer 3, a sand blower 4, a releaser 8 and a perforating gun 9. The combined operation string with simple structure, convenient installation and reliable operation is used for gas filed developing well production, can complete operation construction of perforation, fracture and string production and the like after once descending, and dispenses with well kill operation, thereby being capable of simplifying operation procedures, shortening engineering cycle, reducing production cost, and further avoiding pollution to ground floors caused by well kill operation.
Bibliography:Application Number: CN20092107549U