Types of drilling rigs pdf

On the basis of principal involved in the operation, drilling may be classified as 1. PERCUSSION: (Pneumatic) Types of percussion drillings are; a) Down The Hole drills (DTH) OR Rotary Air Blast drilling (RAB) a) Top hammer drilling b) Reverse circulation drilling 2. ROTARY DRILL a). Auger drill b). Calyx drill c). RIDE Inc. Rigscape Workover/Drilling Rig Procedures Manual 2018 08 30 Page 2 of 70 Rev 1.13 RGDRP_1.1 Ride Inc. Manuals & Supplements Inserts Table of Contents Page This manual is intended to provide information for the guidance of the rig worker. Accuracy of content cannot be absolutely guaranteed. Anyone who needs to rely on any The first Oilwell Drilling module covers basic oil and gas well drilling principles. Different types of drilling rigs are presented, the difference between a kelly/rotary table and a top drive system is explained, and the components of a drill string are described in detail. Drilling Site preparation and water supply required. Small sample size. Slow. Expensive Maximum geological information. Uncontaminated high quality sample. Accurate hole positioning High quality sampling to greater than 1000km. Geological understanding Diamond Large heavy rig. No structural data. Possible sample contamination below water table Following are the types of drill bits: Flat drill Straight fluted drill Twist drill Double fluted drill Multi-fluted drill Centre drill Countersinking drill Counter boring drill Oil hole or tube drill Spirec drill Shell drill Step drill Installer bit Masonry Drill Rivet Drill Auger Drill Tile bits Hammer bit Glass bit Forstner bit Hole saw Mini rigs have: a torque less than 35kNm, a multi-directional drilling capability and typically the process involves adding and removing drill rods, tubes, casing or augers, which are normally Offshore drilling are divided into two types: Fixed structure types and Floating structure types. Jack-up Rig. This is a self-elevating rig, and is used for smaller, shallower offshore deposits. Classification of Rock Drills 4.1. Percussion Rock Drills 4.1.1. Hand-held Rock Drills (Pneumatic) 4.1.2 Drifter 4.1.3. DTH 4.2. Rotary Drill 5. Applications of Drilling Equipment 5.1. Underground Mining 5.2. Surface Mining Acknowledgements Glossary Bibliography Biographical Sketch Summary B-Jack-up. This mobile drilling rig is designed to operate in shallow water, generally less than 350 ft deep. Jack-up rigs, are very stable drilling platforms because they rest on the seabed and are not. subjected to the heaving hull which may be shipshaped, triangular, rectangular, or irregularly. When the rig is undertow to a drilling 2.5 Combination Rotary-Percussion Drilling Rigs 68 2.5.1 Truck Mounted Jetting-Driving 68 2.5.2 Walking Beam Jetting-Driving 71 2.5.3 Exploration Drill 75 2.5.4 Hydraulic Rotary-Driving 77 3. BIBLIOGRAPHY - REFERENCES - MANUFACTURERS OF RIGS AND EQUIPMENT 89 iii . LIST OF TABLES 1. Comparison of Low-Cost, Labor Intensive Drilling 2.1.3 Types of geological formation 19 2.2 Groundwater extraction 21 2.2.1 Advantages of drilled boreholes 22 2.2.2 Disadvantages of drilled boreholes 23 3 Methods of drilling boreholes 25 3.1 Common drilling methods 26 4 Drilling equipment 31 4.1 Choosing a drilling rig 31 4.1.1 Percussion drilling 32 4.1.2 Heavy duty cable tool 32 Onshore and Offshore Drilling Rigs Types of Oil Rigs - Land Rigs The sequence of operations is as follows when a land well is drilled: Prepare location before rig arrives. D