Investigation and study on helium gas reservoir resources in Sinopec exploration area of Tarim Basin
HAN Qiang1, GENG Feng1, HU Beichen1, GAO Shanlin2, JIN Xianmei1, WANG Xitong1, LI Zhenyu1
1 Institue of Exploration and Development of Northwest Branch,Sinopec,Urumq 830011,China; 2 Petroleum Exploration and Production Branch of SINOPEC, Beijing 100728, China
Abstract:We have conducted extensive research on previous helium research to investigate the helium gas reservoir resources in Sinopec exploration area of the Tarim Basin. 22 natural gas samples from nine oil and gas reservoirs and six strata have been collected to determine the helium content in natural gas by mass spectrometry. Based on the analytical results,the main controlling factors of helium accumulation in different zones of the Tarim Basin have been discussed. The results show the helium content of two natural gas samples from the Bachu Formation of well Bk3 in Bashtar area is 0.103% and 0.116%,which meets the standard of helium reservoir;The helium content of six Ordovician natural gas samples in the Shunbei area is 0.026%~0.074%,with only one sample meets the helium reservoir standard. The helium content of 36 Cambrian and Paleogene natural gas samples in the Tabei area is 0.01%~0.08%,which does not meet the helium reservoir standard. Helium accumulation in the Tarim Basin is mainly controlled by helium source,deep-large fault,accumulation period,preservation conditions and other factors. Based on the above data,Bashtar area and Shunbei area are favorable accumulation zones for helium enrichment,while the helium accumulation conditions in the Tabei area are relatively unfavorable.
HAN Qiang,GENG Feng,HU Beichen et al. Investigation and study on helium gas reservoir resources in Sinopec exploration area of Tarim Basin[J]. JOPC, 2022, 24(5): 1029-1036.
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