Drilling Operations of the first Iceland Deep Drilling ? ‚ Drilling Operations of the first Iceland Deep Drilling Well (IDDP) Sveinbjƒ¶rn Hƒ³lmgeirsson Project Manager

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  • Drilling Operations of the first Iceland

    Deep Drilling Well (IDDP)

    Sveinbjrn Hlmgeirsson

    Project Manager Landsvirkjun Power

    sgrmur Gumundsson, Bjarni Plsson, Kristinn Ingason, Hinrik rni Basson, Sverrir rhallsson

  • What is IDDP?

    IDDP is a long-term geothermal research program, established in year 2000

    The goal is to improve the economics of geothermal energy by producing supercritical fluids from 4-5 km depth

    National Energy Authority

  • Saga Rig 0-87 mJune 2008

    Surface casing

    36 hole to 87 m (26 bit and 36 under-reamer)

    32 x 0,5 steel casing

  • Jtunn Rig 87-260-796 mNov-Dec 2008

    Intermediate Casing 1

    26 Drillbit

    24 Casing 162 lb/ft, K55

    Intermediate Casing 2

    23 Drillbit

    18 Casing 114 lb/ft, K55

  • Tr Rig 796 m - final depthMarch-July 2009

    270 ton hook load

    Topdrive

    Automatic pipehandlingsystem

    3 x Mudpumps

    180 m3 mudtanks

  • 2009-03-29

    Broken Float Sub at 1194 m

    Standpipe pressure drops

    Torque drops

  • 2009-03-29

    Broken Float Sub at 1194 m

  • 2009-03-29

    Broken Float Sub at 1194 m

    Equipment downhole:

    16 Drillbit

    9 Mudmotor with 16 sleeve stabilizer

    16 Stabilizer

    The other part of the Float Sub.

  • 2009-03-31

    Fish #1 on surface

    Complete success offishing with an Overshot

  • 2009-04-18

    Broken 8 DC at 2074 m

  • 2009-04-19

    Fish #2 on surface

    Managed to retrieve the fishto surface.

    The brokenthread box

  • 2009-04-21

    Stuck at 2101 m depth

    Pulled out three singles for reaming when hook load dropped suddenly of 20 tons

    Drop in hook load

    Standpipe pressure drops

    Torque increases

    No rotation

  • 2009-04-29

    Part of Fish #3 on surface

    Left in hole, 32 m of fish

    The fishing tool could not be relased

    Explosives to blast the string a part

  • 2009-05-01

    Fishing attempt

    RIH with a fishing assembly

    Connect to the box of the collar and tried to pull

    Unable to rotate or pull where the connection did not hold. Unable to reload the JAR because of the bad connection

  • 2009-05-02

    Cementing a Side Track plug #1

    100 m cement plug planned to side track and drill pass the fish.

    Three attempts needed to get desired depth of TOC.

    Time drilling and sidetracking

    Success at 1934 m

  • 2009-05-12

    Stuck at 2005 m

    Decided to set the Anchor casing at 2005 m due to hazard zones higher up in the well (brittle formation because of cooling and heating).

    After having reached 2005 m and after 25 min. of circulation, the string got stuck.

    Circulation was maintained to clean the fill. The string was pulled and jarred for 3 days before it was loose.

  • 2009-05-17

    Wiper trip and circulate the fill of bottom

    Wiper trip before running the anchor casing.

    Bottom found at 1972 m (33 m fill).

    Tried to clean the fill with high viscous pills.

    Increased torque.

    Decided to POOH and deal with the fill after having cemented the Anchor casing.

  • 2009-05-(18-24)

    Run and cement Anchor Casing

    Run the 13 and 13 casing. Casing set at 1957 m (not to close to the fill).

    Cemented in two steps:

    Traditional inner string job, with a float collar and a float shoe up to known loss zones at 1600 m.

    Fill the annulus through the killline.

  • 2009-05-27

    Drilling for Production casing

    The well was drilled to 2016 m with a 12 bit.

    Total loss of circulation.

    Difficult cleaning because of a larger diameter hole below shoe (1957 m - 2005 m).

    POOH for a cementing job from bottom to casing shoe.

    Fiberglass cementing pipes used with good results (easily drillable if stuck).

    Continued drilling.

  • 2009-06-02

    Coring

    Decided to drill a spot core (9 m) from 2040 m.

    Known loss zones from previous track.

    Managed to drill 2 m until no penetration observed. No core inside the barrel.

  • 2009-06-(04-07)

    Junk basket and cement to shoe

    RIH with a Mill tooth bit and a Junk Basket trying to retrieve the rest of the core bit.

    Drill the well to 2060 m and cement possible junk in hole and clog the losses.

    Fiberglass drill pipes used for the cementing job.

    TOC found at 1970 m.

  • 2009-06-08

    Stuck at 2103 m

    Continued drilling until the string got stuck at2103 m.

    Managed to get loose by pulling 160 tons.

    Circulated for 1 hour.

    RIH again slowly and when the bit was onbottom the torque increased and the string wasstuck.

    Returns lost imediately and the string wasblocked for circulation.

  • 2009-06-08

    Stuck at 2103 m (bit at 2090 m)

    RIH slowly

    Pill for sweeping

    Torque increases

    Pulled out

  • 2009-06-08

    Stuck at 2103 m (bit at 2090 m)

    The Hook load decreases by 10-15 tons!

    RIH

    Torque increases

    Pulled out

    Torque increases

    Bit pushed up

    String blocked for circ.

  • 2009-06-10

    Blind Back off

    A Blind Back off was carried out.

    A factory made up connection on the Anderdrift tool broke.

    Left in hole, 17 m of fish

    RIH with a fishing BHA without results.

  • 2009-06-(15-22)

    Cementing a Side Track plug #2 and side

    track

    Cement a plug from top of fish at 2072 m and up to 1928 m (30 m inside the casing).

    Two attempts needed to get desired depth of TOC.

    Time drilling and side tracking.

    At 1985 m the bit was in formation.

    Continued drilling.

  • 2009-06-24

    Stuck in Magma!

    At 2100 m the bit was pulled up to casing and the well was cleaned. No fill was on bottom.

    At 2104 m the torque increased and the ROP doubled from 2 m/hr to 4 m/hr.

    The hook load decraesed by 40 tons.

    Managed to keep circulation and returns.

    Quenched glass in the returns.

    Proof of Magma.

  • 2009-06-08

    Stuck in Magma at 2104 m

    The Hook load decreases by 50 tons!

    RIH

    Torque increases

    RIH

    Hook load decreases

    Bit pushed off bottom

    Torque increases

    Pulled out

  • 2009-06-24

    Stuck in Magma!

    The circulation was maintained for 24 hrs.

    The string was loose.

  • 2009-06-29

    Running casing and liner

    Decided to run 9 production casing.

    Set it at the same depth as the Anchor casing1957 m and cement it to surface.

    In the open hole section a 9 slotted liner wasset from 1957 to 2080 m.

  • Into magma 1st time Into magma 2nd time

    Into magma 3rd time

  • 0

    10

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    100

    0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

    De

    pth

    (m)

    DaysPre - Drilling of IDDP - 01

    Actual

    Estimated

  • Broken Mud

    pump

    0

    100

    200

    300

    400

    500

    600

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    800

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    19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

    De

    pth

    (m)

    DaysDrilling works I - IDDP - 01

    Actual

    Estimated

    IC - 1

    IC - 2

    Broken mud pump

  • 0

    500

    1000

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    61 71 81 91 101 111 121 131 141 151 161 171 181

    De

    pth

    (m)

    Days

    Drilling works II - IDDP - 01

    Actual

    Estimated

    AC

    PC

    PZ

    800 m

    2400 m

    3500 m

    4500 m

    Sidetrack I Coring Sidetrack II

    Bit change

    2 Corings

    7 Corings

    Broken BHA

    Junk basket

    Drilled into magma 1st time

    Drilled into magma 2nd time

    Drilled into magma 3rd time

    Stuck at 2005 m

    Running Anchor casing and cementing

  • Thank you!

  • IDDP Consortium

    National Energy Authority

    Principal Science Investigators:

    Gudmundur Omar Fridleifsson, HS orka hf

    Wilfred A. Elders, University of California at Riverside

  • 2009-05-(18-24)

    CBL log 14 hrs after cementation

    1600 m

  • 2009-05-(18-24)

    Running and cement Anchor Casing