Permian Region Rig Count is at a current level of 317, up from 315 last month and down from 356 one year ago. This is a change of 0.63% from last month and -10.96% from one year ago. View monthly updates and historical trends for Permian Region Rig Count (DISCONTINUED).
[pdf] Air-lift reverse circulation drilling technology is often used in geothermal well drilling, but there are many problems along with drilling depth increasing, such as double-wall drill pipe leaking, air-water mixer blo.
[pdf] Before starting casing, the drilling supervisor should hold a pre-job safety meeting and confirm the following with the crew: 1. Remove unnecessary tools. 2. Good Housekeeping before the job 3. Rig up Casing handling equipment: Using appropriate hand. .
A circulation sub, fitting the casing thread, equipped with a WECO connection, shall be readily available on the rig floor at all times during casing running.
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