Mich. Admin. Code R. 408.15768 - Procedures for air, gas, and mist drilling operations
Rule 5768.
(1)
Subrules (2) to (16) of this rule apply only to air, gas, or mist drilling
operations.
(2) The stripper rubber
in the circulating head shall be inspected by a qualified employee at least
once each tour. If any leaks are found, immediate action shall be taken to
change out the stripper rubber.
(3)
Pipe connections carrying gas or air to or from the wellbore shall be made up
leak-free. Lines and connections shall be frequently inspected by a qualified
employee and maintained free of leaks.
(4) A blooey or bleed-off line shall be not
less than 150 feet in length or equivalent safety measures shall be taken. The
blooey or bleed-off line shall be located downwind of the rig for the
prevailing wind direction.
Equivalent safety measures shall be taken for other wind conditions. A blooey or bleed-off line shall be laid as straight and free of sags as practical from the wellbore and shall be securely anchored.
(5) In gas drilling operations, a
shutoff valve shall be installed on the main feeder line not less than 150 feet
from the wellhead. In air drilling operations, the shutoff valve shall be
installed in the main feeder line near the compressors.
(6) An air compressor shall not be located
closer to the wellbore than the nearest engine operating the rig.
(7) The compressor shall be equipped with
safety features, such as a pressure relief valve, pressure gauge, engine
governor, and fuel shutoff valve.
(8) When making a connection, the standpipe
valve shall be closed and the bleed-off line shall be opened before breaking
out the tool joint.
(9) A pilot
light shall be kept burning at the end of the flow line at all times, except
when making trips. The pilot light shall be turned off while making
trips.
(10) An effective pilot
light or other continuous lighting device shall be kept burning at the end of
the flow line at all times during the drilling operations, except when making
trips.
(11) Equipment and materials
for killing the well with drilling fluid shall be at the drilling site and such
equipment shall be operable before a drilling operation commences.
(12) One B-C fire extinguisher of not less
than 150 pounds dry chemical capacity, or equivalent, shall be stationed on the
job in addition to those required in
R
408.15715.
(13) The rig substructure shall be ventilated
either by dependable natural convection or by use of mechanical fans which
provide not less than 12 complete air changes per hour.
(14) A rig engine shall have an adequate heat
and spark-arresting system for the exhaust.
(15) A gas or gasoline-fueled engine used in
gas drilling operations shall be equipped with a shielded low-tension ignition
system.
(16) A burning stove, open
fire, or other possible source of ignition, such as an electric-powered tool or
2-way radio, shall be permitted only in a designated area. Only a heater which
is designed and approved as safe shall be permitted on or near the rig
floor.
(17) An emergency shutdown
device shall be provided for each rig engine, excluding the power plant, and
shall be located at the driller's console.
Notes
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