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It is the ideal tool for milling inside casing or milling up torn or plugged tubular junk. The three-piece design of the Junk Master-driver sub, Economill and skirt, permits a worn part to be replaced without discarding the complete tool. The thrifty Economill can be replaced for a fraction of the cost of a one-piece skirted junk mill. The skirt slips over distorted or split pipe and the fish to protect the casing while keeping the Economill from slipping off the top of the fish.
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Master Driller
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The Master Driller is well suited for soft to medium-hard formations where a variety of hole sizes and formations are encountered. The tool is also used where rotary table size restrictions exist.
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- One body can accommodate several sizes for arms; an advantage in locations with limited rig space or logistics problems.
- Cutter arms may be installed below the rotary table when rotary table size restrictions exist.
- The tool utilizes specifically designed cones for hole openers. A large selection of cones including milled tooth, TCI and PDC cutters.
- All Master Driller hole openers feature replaceable nozzles to assure effective hole cleaning and to cool cutter cones.
- Bottom box connection allows the selection of bit or bullnose for guidance.
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Master Driller Tool Servicing
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- It is advisable to clean the tool after use and before storage. Steam cleaning is preferred but washing in petroleum solvent or diesel fuel is acceptable.
- If the tool is painted prior to storage, avoid letting paint run into the arm pin holes and into the cone bearing races.
- Coat the tool joint connections with a good grade of thread lubricant and reinstall the thread protectors supplied with tool.
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Three-piece Skrited Junk Mill Specifications
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Tool Series
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Skirt OD*
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Skirt ID**
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Top Pin Conn. API Reg.
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Fishing Neck Dia.
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Length
(ft.)
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Wf.
(lb.)
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3500
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3 1/2
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2 7/8
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2 3/8
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3 1/4
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46
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45
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4000
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4
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3 7/8
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2 7/8
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3 3/4
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46
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70
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4500
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4 1/2
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3 3/4
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2 7/8
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3 3/4
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46
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80
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5700
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5 3/4
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5
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3 1/2
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4 3/4
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47
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110
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7000
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7
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5 3/4
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4 1/2
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5 3/4
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47
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165
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7600
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7 3/4
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6 1/2
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4 1/2
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5 3/4
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47
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220
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10700
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10 3/4
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9 3/8
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6 5/8
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7 3/4
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59
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368
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11700
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11 3/4
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10 3/8
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6 5/8
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7 3/4
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59
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417
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*OD of skirted can be dressed larger
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**ID of skirted can be dressed smaller
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Notes
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1- All Dimensions are given in inches unless otherwise stated
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2- All weights are approxirnate
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3- Standard API regular connections, Others available upon customer request
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Ordering Instructions
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When ordering or requesting quotations on the Junk Master, please specify :
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1- Dressed OD and ID of skirt
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2- Size and weight of casing to be run through , if available
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3- Tooth design of skirt (tooth type, V-notch, perforated type or fishing lip type, etc.)
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4- Top connection.
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