WIRELINE RODS CARE AND HANDLING

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2 WIRELINE RODS CARE AND HANDLING Drilling companies constantly need to achieve greater depths, while machines are increasingly more powerful and faster. Heat treatment applied to rod ends, enhances their torque and tensile strengths. Steels and machining processes are subject to strict quality controls that guarantee perfect coupling of rods and extend their duration. Joint coupling Remove all dust accumulation in male and female threads. Apply Drill grease to allow proper tightening torque and prevent frictional wear. For a first connection, decouple, clean and lubricate joints. Turn the male end clockwise in the female end, ensuring alignment (threads to the right). Tightening torque preloads the male and female to close the joint, creating a seal to prevent fluid leaking and rod swaying. Poorly applied tightening torque reduces pull back (tensile) or pull down (compression) capacities. In negative and/or deep wells, apply greater tightening torque to keep fluid seal in the joints close to the top of the rod column. Conversely, apply less tightening torque to joints near the end of the column crown or to joints in rod strings in underground drilling of positive wells, to maximize joints pull down capacities. In deviated wells, tightening torque is critical to prevent swaying leading to fatigue failure. Excessive tightening torque also reduces the joint s fatigue strength. Operation Tips Insufficient tightening torque may cause joint or thread breaking in female-male ends, in addition to possible fluid leaking. Apply recommended minimum tightening torque for a secure joint and male/female thread coupling. Excessive tightening torque reduces drilling performance and maximum depth. DIAMANTINA CHRISTENSEN 2 DRILL RODS & CASING

3 Joint decoupling Abrupt decoupling reduces thread life. Do not hit rod male ends when decoupling. Lower suspended rod to one inch (approx.) of the female connected to the rod column and manually screw threads. Do not scratch threaded surfaces. This directly affects joint sealability. Check that hoisting plug threads and upper header adapters are not worn out or dusty before connecting them to the rod column. When stacking rods on the mast, place a wooden base or a rubber support surface to protect male connections. This is very important for handling 20 ft (6 m) or longer rods. Do not alternate rods with threaded products of similar appearance from other manufacturers. Do not place the wrench or mandrel in heat treated bands near the joint as it could cause slipping. When tightening rods, keep the wrench at a 90 degree angle from the rod. 90 Use full grip rod wrenches to avoid damaging the rod. Do not drag rod threads on the floor. Do not use cotton gaskets or any type of tape for threads. Thread design allows hermetic leak-proof coupling. Useful life To maximize the life of rods, plan the drilling schedule so that each rod in the column has the same service life. If a rod is kept at the top of the string as a guide, be sure to discard the rod if the male thread is damaged and never use this rod at the pit bottom. Drill rods have "memory". Application of excessive torque, stress or bending to a rod, reduces its capacity. This explains why a rod can withstand one or two difficult cycles and then fail in an easy one. DIAMANTINA CHRISTENSEN 3 DRILL RODS & CASING

4 Identification of rods that must be removed Dented rod body may cause core barrel entrapment. The rod s body shows excessive wear as compared to the diameter of a new rod. Bulged box or pin. The thread has cracks or loose material. Border of pin or box thread is dented or has torn borders. Presence of leaks when injecting drilling fluid. Rod has very deformed thread pattern Presence of leaks when injecting drilling fluid. Box with brands deep grip. Cleaning and lubrication Threads should be greased to prevent rust. Do not remove this grease when you use the rod for the first time, unless it is contaminated. Whenever rods are used, clean and lubricate the threads with a 1 ½ to 2 inch brush. Do not use too much lubricant. Use enough grease to ensure covering thread surfaces For maximum performance and to avoid wear by friction, clean threads with grease. If the thread has signs of pollution signs, clean it and dry it before applying a new grease layer. Keep the brush and grease clean. DIAMANTINA CHRISTENSEN 4 DRILL RODS & CASING

5 Preparation for transport Load rods on three transverse supports and tie them with a chain on end supports. Place plastic protection on threaded ends. Storage Always clean and grease threads of rods male and female ends before storing them. Store the rods horizontally on at least three transverse supports at no less than 12 inches (30 cm) from the ground to keep rods away from moisture and dust. Always place proper protection on threaded ends. Destructive Tests lbf*ft lbf % % + 23% NO + 47% NMO HO HMO NO NMO HO HMO - - MAXIMUM TORQUE STRENGTH MAXIMUM TENSILE STRENGTH Drilling depth DIAMANTINA CHRISTENSEN 5 DRILL RODS & CASING

6 TECHNICAL SPECIFICATIONS B Size and Weight Outer Diameter Inner Diameter 3-Meter Useful Long Rod Weight BMO (HEAVY DUTY) BO Imperial Metric Imperial Metric 2 inch. 55,60 mm inch. 46,00 mm 1 inch. 46,00 mm ,2 lb 18,2 kg 2 inch. 55,60 mm 40,2 lb 18,2 kg Mechanical Properties Raw Material Yield Strength (Pipe) Tensile strength (Pipe) Linearity (Pipe/Thread) Seamless precision pipe, cold process ASTM A519 steel high alloy 690 Mpa ( PSI) 813 Mpa ( PSI) 1 mm x 3 Meters (Max.) Thread Specifications Thread 3 TPI (Threads per inch) Thread hardness Hardening and Tempering Performance HEAVY DUTY (BMO) Performance STANDARD (BO) Joint tensile strength lbf (+22%)* kgf lbf kgf Threaded joint torque strength lbf*ft (+47%)* 842 kgf*mt lbf*ft 573 kgf*mt Thread Profile (*) Increased tensile and torque Heat Treatment and Thread Protection (HEAVY DUTY) Heat Treatment Thread Treatment Both ends are heat treated (Hardening and Tempering), pre-threading (4 to 6 approx.) Pin End / Applying phosphate coating that reduces friction and improves grease retention screw. Box End / Protective oil application prevents rust. Packing 19 Unit Rod Bundle Hexagonal Steel Cap DIAMANTINA CHRISTENSEN 6 DRILL RODS & CASING

7 TECHNICAL SPECIFICATIONS N Size and Weight Outer Diameter Inner Diameter 3-Meter Useful Long Rod Weight NMO (HEAVY DUTY) NO Imperial Metric Imperial Metric 2 ¾ inch. 69,9 mm 2 ¾ inch. 2 inch. 60,3 mm inch. 50,5 lb 22,9 kg 69,9 mm 60,3 mm 50,5 lb 22,9 kg Mechanical Properties Raw Material Yield Strength (Pipe) Tensile strength (Pipe) Linearity (Pipe/Thread) Seamless precision pipe, cold process ASTM A519 steel high alloy 690 Mpa ( PSI) 813 Mpa ( PSI) 1 mm x 3 Meters (Max.) Thread Specifications Thread Thread hardness 3 TPI (Threads per inch) Hardening and Tempering Joint tensile strength Threaded joint torque strength Performance HEAVY DUTY (NMO) lbf (+22%)* kgf lbf*ft (+47%)* kgf*mt Performance (NO) lbf kgf lbf*ft 760 kgf*mt Thread Profile (*) Increased tensile and torque Heat Treatment and Thread Protection (HEAVY DUTY) Heat Treatment Thread Treatment Both ends are heat treated (Hardening and Tempering), pre-threading (4 to 6 approx.) Pin End / Applying phosphate coating that reduces friction and improves grease retention screw. Box End / Protective oil application prevents rust. Packing 19 Unit Rod Bundle Hexagonal Steel Cap DIAMANTINA CHRISTENSEN 7 DRILL RODS & CASING

8 TECHNICAL SPECIFICATIONS H Size and Weight HMO (HEAVY DUTY) HO Imperial Metric Imperial Metric Outer Diameter Inner Diameter 3-Meter Useful Long Rod Weight 3 ½ inch. 88,9 mm inch. 77,8 mm 75,4 lb 34,2 kg 3 ½ inch. 88,9 mm inch. 77,8 mm 75,4 lb 34,2 kg Mechanical Properties Raw Material Yield Strength (Pipe) Tensile strength (Pipe) Linearity (Pipe/Thread) Seamless precision pipe, cold process ASTM A519 steel high alloy 690 Mpa ( PSI) 813 Mpa ( PSI) 1 mm x 3 Meters (Max.) Thread Specifications Thread Thread hardness 3 TPI (Threads per inch) Hardening and Tempering Joint tensile strength Threaded joint torque strength Performance HEAVY DUTY (HMO) lbf (+23%)* kgf lbf*ft (+52%)* kgf*mt Performance (HO) lbf kgf lbf*ft kgf*mt Thread Profile (*) Increased tensile and torque Heat Treatment and Thread Protection (HEAVY DUTY) Heat Treatment Thread Treatment Both ends are heat treated (Hardening and Tempering), pre-threading (4 to 6 approx.) Pin End / Applying phosphate coating that reduces friction and improves grease retention screw. Box End / Protective oil application prevents rust. Packing 19 Unit Rod Bundle Hexagonal Steel Cap DIAMANTINA CHRISTENSEN 8 DRILL RODS & CASING

9 TECHNICAL SPECIFICATIONS P Size and Weight Imperial Dimensions Metric Outer Diameter 4 ½ pulg. 114,3 mm Inner Diameter 4 pulg. 101,6 mm 3-Meter Useful Long Rod Weight 104 lb Mechanical Properties Raw Material Yield Strength (Pipe) Tensile strength (Pipe) Linearity (Pipe/Thread) Seamless precision pipe, cold process ASTM A519 steel high alloy Minimun 690 Mpa ( PSI) Minimun 813 Mpa ( PSI) 1 mm x 3 Meters (Max.) Thread Specifications Rosca 2,5 TPI (Threads per inch) Dureza de la Rosca Hardening and Tempering Heat Treatment and Thread Protection (HEAVY DUTY) Heat Treatment Thread Treatment Both ends are heat treated (Hardening and Tempering), pre-thread (4 to 6 approx.) Pin End / Applying phosphate coating that reduces friction and improves grease retention screw. Box End / Protective oil application prevents rust. Packing 7 Unit Rod Bundle Hexagonal Steel Cap DIAMANTINA CHRISTENSEN 9 DRILL RODS & CASING

10 TECHNICAL SPECIFICATIONS Size and Weight Outer Diameter Inner Diameter 3-Meter Useful Long Rod Weight CASING HWT Dimensions 4 ½ inch 4 inch 104 lb 114,3 mm 101,6 mm Mechanical Properties Materia Prima Limite elástico (Tubo) Resistencia de tracción (Tubo) Linealidad (Tubo/Rosca) Seamless precision pipe, hot roller ASTM A519 steel high alloy Minimo 690 Mpa ( PSI) Minimo 813 Mpa ( PSI) 1 mm x 3 Metros (Max.) Thread Specifications Rosca Dureza de la Rosca 2,5 TPI (Hilos por pulgada) Tratamiento Térmico Temple y Revenido Heat Treatment and Thread Protection (HEAVY DUTY) Heat Treatment Thread Treatment Full body heat treatment (Hardening and Tempering). Pin End / Applying phosphate coating that reduces friction and improves grease retention screw. Box End / Protective oil application prevents rust. Packing 7 Unit Rod Bundle Hexagonal Steel Cap DIAMANTINA CHRISTENSEN 10 DRILL RODS & CASING

11 QUALITY CONTROLS /ASTM Test Strict raw material control at reception to assure the use of materials that conform to our specifications. These controls check mechanical properties and chemical composition of our standard. Metal microstructure control using metallographic analysis. NDT (non-destructive testing) applied to 100% of production to guarantee a crack and fissure-free product. Dimensional and geometrical inspection of threads with certified patterns. 0UR PRODUCTS DIAMOND PRODUCTS CORER BARRELS INJECTION HEADS REVERSE AIR BARS AND ACCESSORIES SOIL ASSESSMENT ACCESSORIES AND TOOLS ACCESSORIES AND SPECIAL TOOL DESIGN / MANUFACTURING SPARE PARTS AND ACCESSORIES FOR MACHINES DIAMANTINA CHRISTENSEN 11 DRILL RODS & CASING

12 REV. MAR.2016 Lo Campino 432 / Quilicura / Santiago / Chile +56 (2) Av. Santa Ana 180 / Ate Vitarte / Lima - Perú +51 (1)