Antecedentes históricos

h. The time must be noted when the driller is prepared to shut in the well.

i. Members of the drilling crew must report back to the rig floor having completed their assigned duties. These duties may include:

1. Driller

Shut in the well (simulated). Record drill pipe, pressure and casing pressure, Record time, Measure pit gain, check chock manifold for valve positioning and leaks.

2. Derrick Man

Weigh sample of mud form suction pit, check volumes of barite, gel and water on location.

3. Assistant Driller

Check accumulator pressures and pumps, Check BOP stack for leaks and proper valve positions, turn on water jets to diesel exhausts.

4. Floor Hand No.1 and 2 Assist Driller on rig floor.

5. Floor Hand No.3

Assist Derrick Man on mud pits

Frequency: One or more pit drills should be conducted each day until the crews become proficient, then at least twice weekly per crew, or more often if deemed advisably by the SA Liaisonman.

M. Trip Drills

1) The trip drill is designed to train the drilling crew to recognize and respond to kick indications which occur while tripping pipe. The trip drill is useful for both teaching and testing purposes.

2) The trip drill is supervised by the Toolpusher with the knowledge of the SA Liaisonman.

3) All parts of the well control system must be kept hooked up and in good condition, ready for drills.

4) When a new rig is picked-up, trip drills should be conducted during each trip (both while pulling out and going into the hole) while the bit is up in the casing. When the crew becomes proficient, trip drills should be conducted at least twice weekly per crew, conditions allowing.

SA-DWO-HSERM-AR-001-R0 / Created: 01/13 / Last Review: 01/13 / Next Review: 01/17 Owner: VP-D&WO

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5) Procedure

a. The Toolpusher simulates the kick by raising a float in the trip tank and making a note of the time.

b. The SA Liaisonman shall assist in observing the crew and recording completion times.

c. The Driller must detect the kick and sound the alarm.

d. The time of the alarm shall be noted.

e. Upon hearing the alarm, all members of the drilling crew shall immediately execute their assigned duties.

f. The Driller must prepare to shut in the well using the approved SA Shut-in Procedure While Tripping. This shall include spacing out and stabbing/closing the full open safety valve.

g. After the safety valve is installed and the Driller is ready to close the preventers, the SA Liaisonman shall announce to the Driller that the exercise is only a drill and that it is not necessary to close the preventers.

h. The time shall be noted when the driller is prepared to shut-in the well.

i. Members of the drilling crew should proceed with their assigned duties and report back to the rig floor upon completion. These duties may include:

1. Driller

Shut in the well (simulated), Record drill pipe and casing pressure, record time, Measure pit gain, Check choke manifold for valve positioning and leaks.

2. Derrick Man

Weigh sample of mud from suction pit, Check volumes of barite, gel, and water.

3. Assistant Driller

Check accumulator pressures and pumps, Check BOP stack for leaks, turn on water jets to diesel exhausts.

4. Floor Hand No.1 and 2

Stab safety valve. Close safety valve Stab inside BOP. Open safety valve, Assist Driller on rig floor.

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5. Floor Hand No.3

Assist Derrick man on mud pits.

Frequency: Trip drills should be conducted during each trip (both while pulling out and going into the hole) while the bit is up in the casing. When the crew becomes proficient, trip drills should be conducted at least twice weekly per crew, conditions allowing.

N. Accumulator Drill/Test

Accumulator drills/tests are designed to verify that the accumulator/closing system is in good working order and that it is properly sized for the particular blowout preventer stack. Accumulator performance must be proven with an accumulator drill when the BOPs are first installed (which verifies proper sizing), and every 14 days thereafter in conjunction with the weekly BOP pressure tests (which checks for hydraulic leaks).

1) Results of the accumulator drill, including closing times of the rams and annular preventer, and initial final accumulator pressures are to be reported on the BOP Test and Equipment Checklist.

2) A notation should also be made on the tour report that an accumulator drill was conducted.

3) Accumulator drills must be conducted when the drill pipe is not in open hole, but up in the casing.

4) At least one joint of drill pipe must be in the hole for the pipe rams to close on.

5) The SA Liaisonman and Toolpusher should witness all accumulator drills, but the Toolpusher is responsible for the actual supervision of the drill.

6) Use the remote station to close the preventers every other drill.

7) Procedure

a. Turn off all accumulator-pressurizing pumps.

b. Record the initial accumulator, manifold, and annular pressures.

c. Close all of the preventers (Except the Blind Rams). Substitute a reopening of a pipe ram to simulate the blind ram closure when applicable.

d. Open the Hydraulic Control Relief (HCR) valve.

e. Measure and record the closing times for each preventer with a stopwatch.

f. Record the final accumulator, manifold, and annular pressures.

g. To pass the accumulator test, all BOPs must have closed in less than 30 seconds with at least:

1500 psi accumulator pressure remaining (for a 3000 psi accumulator).

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Note: Equipment that does not meet these requirements either has insufficient capacity,

insufficient pre-charge or needs repair. Closing time for annular preventers 20" and larger should not exceed 45 seconds.

h. Observe the remaining pressure for at least 5 minutes to detect any possible ram piston seal leaks.

i. Re-open the BOP and turn the accumulator pump(s) back on.

j. Record the time required to charge system back up (re-charge time).

Frequency: Accumulator performance must be proven with an accumulator drill/test when the BOPs are first installed (which verifies proper sizing), and every 14 days thereafter in

accordance with the SAWCM (SAWCM).

O. Annual Emergency Drills

1) D&WO shall conduct an annual “Primary” rig emergency drill as per G.I. 1850.001, to better prepare for unexpected well emergencies when they occur. One Land rig from each drilling department and one Land rig form workover shall be selected annually to participate.

2) This drill shall be coordinated with appropriate operating organizations so that all parties shall