Drillmar Energy

LOC 250

As new, more versatile, and efficient rigs are delivered to our industry, we believe that coil tubing and casing drilling technologies will become much easier to implement and therefore more attractive. When applied properly, these technologies provide substantial well costs savings as well as improved production performance. The LOC 250 is a 6th generation rig and has been designed to economically introduce casing drilling technology into key regions which have substantial opportunities.

The unit has a 250 ton hook load capacity and its operational capabilities are:

Ø Transported as 17 containers that are approx 48’x 8.5’x 10.5’ via normal container transport methods, requiring no special permits or equipments for handling,

Ø Completely automated operations requiring significantly less rig crew training and number of personnel,

Ø Can drill with either conventional drill pipe (12,000 ft) or casing (15,000 ft).

The LOC 250 unit could save up to 40% of a typical well cost in the targeted region. Furthermore, based on results from the 5th generation rigs drilling time is reduced and well production is increased significantly.

Drillmar has managed one of Tesco's casing drilling rigs (5th generation) for Apache for the last two years and has drilled +50 wells. Responsibilities include design, engineering, planning and implementation of drilling, completion and commissioning of wells as well as redesigning production systems. The work has been exceptionally successfull.

Fidelity Exploration and Production of Texas has already taken delivery of one (1) LOC250 (pictured above). Drillmar has an interest in the company.

LOC 250 general specifications:

*Weight and dimensions*
Total transport weight	475	[mton]	524	[Shton]
Number of container units	17
Containers for loose gear (40’)	4	TBD
Max. ISO dimensions
Length	12.2	[m]	40	[ft]
Width	2438	[mm]	8	[ft]
Height standard	2590	[mm]	8’ 6”
Height high cube without gooseneck	2794	[mm]	9’ 2”
Height high cube with gooseneck	2896	[mm]	9’ 6”

Infield rig move	< 30	hours

Exact number of required containers for loose gear to be determined and dependent on particular project requirements.

*Hoisting gear and handling equipment*
Mast	Huisman
Max capacity	227		[mton]			250	[shton]
Number of falls	8
Total height	38.1		[m]			125	[ft]

Drawworks	Huisman

Three motor capacity	227			[mton]		250	[shton]
Block speed at full load	10			[m/min]		33	[ft/min]
Block speed at low load	40			[m/min]		130	[ft/min]

Wire line winch	Huisman traction winch + storage reel

Capacity	14.2	[mton]			31300			[lbs]
Block speed at full load	70	[m/min]			230			[ft/min]
Max. depth below surface	4500	[m]			14750			[ft]

Service crane	Huisman
Capacity	6000	[kg]			13200		[lbs]
Speed	20	[m/min]			65		[ft/min]

Pipe handler	Huisman
Maximum capacity	3000		[kg]		6610		[lbs]
Minimum diameter pipe	60.3		[mm]		2 3/8		[inch]
Maximum diameter pipe	339.7		[mm]		13 3/8		[inch]
Cycle time	1		[min]

Pipe rack	Huisman

*Power unit*
Main diesel engines	3 x Volvo Penta TAD 1642 VE / GE
Power	494		[kW]	662		[HP]

Emergency and rig up diesel	2 x Hatz 4L41C
Power	50		[kW]	67		[HP]

*Fuel*
Type of fuel	Commercial diesel oil
Fuel consumption estimate	3030	[l/day]		800	[USG/day]

*Mud system*
Mud pumps	2 off Eweco E-800
Power	600	[kW]	800	[HP]

Charge / mix. Pumps	4 off 8” x 6” x 14”
Power	55	[kW]	75	[HP]

Shakers	Fluid Systems Inc. linear shaker
Scalpel shakers with coarse screen	5	[G]
Second shakers with fine screen	7	[G]

Centrifugal degasser	Swaco

*Rotating equipment*
Top drive	Tesco HMIS-250
Max capacity	227	[mton]		250			[shton]
Max torque	29200	[Nm]		21500			[ftlbs]
Drilling torque	14500	[Nm]		10500			[ftlbs]
Max. speed	210	[rpm]

External casing drive assembly	Tesco
Minimum size				4 1/2			[inch]
Maximum size				7			[inch]

Internal casing drive assembly	Tesco
Minimum size				9 5/8			[inch]
Maximum size				13 3/8			[inch]

Automated Single joint elevators	Tesco
Minimum size				4 1/2			[inch]
Maximum size				9 5/8			[inch]
Maximum capacity	5.4	[mton]		6			[shton]

Rotary table	Huisman
Hang off capacity	200		[mt]		220	[sht]
Table opening (slips removed)	700		[mm]		27.5	[inch]
Power slips maximum size	339.7		[mm]		13 3/8	[inch]
Power slips minimum size	60.3		[mm]		2 3/8	[inch]

*Well control equipment*
BOP	T3 Services
Double ram body					11	[inch]
	690	[bar]			10	[kPsi]
Single ram body					11	[inch]
	690	[bar]			10	[kPsi]
Annular					11	[inch]
	345	[bar]			5	[kPsi]

Wire line BOP	Tesco
Double ram body	22	[mm]
	345	[bar]			5	[kPsI]

Choke manifold	T3 Services
				4 1/16		[inch]
	690		[bar]	10		[kPsi]

Drilling choke				2 1/16		[inch]
	690		[bar]	10		[kPsi]