Page 355 - Practical Well Planning and Drilling Manual

Section 3 revised 11/00/bc 1/17/01 12:00 PM Page 331

3.1.8
Well Control [ ]

Close the kill line inner valve and open the outer valve. Bleed off at the cement pump
2b
when the test is complete.

Reseat the NRV, open kill line inner manual, open choke line manual, and close HCR.
Open stab in kelly cock and close lower kelly cock. Repressure to full test pressure 2c
(no LP test needed against valves) and test NRV, HCR, and lower kelly cock. Bleed
off at cement pump.

Open TPR, close BPR, open lower kelly cock, and close upper kelly cock. Test BPR 3a
and upper kelly cock then bleed off at the cement pump. BPR

Close the outer standpipe valves, open upper kelly cock. Test kelly hose and stand-
pipe outer valves. When test is good, close standpipe valve and bleed off standpipe 3b
pressure to test the standpipe valve to the kelly hose. Bleed off at the cement pump
and open the rams.

Back the drillpipe and test sub out of the testplug, reconnect the kill line, close in at
the choke manifold outer valves. Test the blind rams, kill, and choke lines via the kill 4
line and choke manifold outer valves. Close next row of choke valves when HP test BR
OK, open previous in turn until all choke manifold valves are tested. Bleed off
through the choke manifold.

Open rams, close the side outlets, run in the drillpipe, and screw into the test plug.
Shut the BPR and the annular recording pressures on the accumulator; the final pres-
sure should be at least 200 psi above precharge. Start up the pumps and measure how
long it takes to recharge the unit to full working pressure. Compare the performance
results with the manufacturer’s specifications. The accumulator should be fully
recharged within six minutes.

Open BOPs, close HCR, line up all valves for drilling. Run the wear bushing back in.

With the air pumps off, bleed down the manifold pressure and ensure that the elec-
tric pumps kick in when the pressure drops below 90% of working pressure.

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