From 20:00 to 22:00 on Jan. 27th, 2015, RIH iron bar for ignition, casing pressure reaching 850psi. After the discharge line was opened, 1.5 cubic meter of clear water and mud fluid spilled. After that, natural gas came out with flames reaching 4 to 6 meter, highest at around 8 meters. Primary judgment: gas zone.

Dated: 28 January, 2015