Because the content of hydrogen sulfide in natural gas is equal to or greater
than 1500mg/m3 in highsulfur oil and gas wells, there is a risk of hydrogen sulfide leakage during test operation. Ten prohibitions on
hydrogen sulfide well testing operations have been formulated. These prohibitions are the specific requirements for the selection of equipment,
tools, materials, facilities and testing, by analyzing the characteristics of hydrogen sulfide and typical case and studying the general practice
and practice of hydrogen sulfide prevention in test industry. Field workers adhere to the principle of “saving people first“and “harming each
other lightly”. Through continuous drilling and optimization, hydrogen sulfide risk identification, protection and control technology is finally
formed in Well X15, which ensures the safe and efficient completion of testing operations in key wells. The technology of hydrogen sulfide
risk identification and control in oil and gas well test operation formed by this well ensures that the key wells of the group company achieve the
expected exploration target, and provides an example for similar well test operation at home and abroad.