钻井基础 Basic Drilling Engineering.ppt

Basic Drilling Engineering Contents WHY WE DRILL PROSPECT SELECTION HISTORICAL BACKGROUND MODIFICATION IN DRILLING TYPES OF DRILLING WHAT ARE DIFFERENT WELL LOCATIONS IN TERMS OF DRILLING CONVENTINAL DRILLING RIG COMPONENTS RIG COMPONENTS ADVANCEMENT IN ROTARY DRILLING MUD TYPES THEIR USAGE WHAT WE CALL A SUCCESSFUL DRILLING OPERATION Why We Drill TO KNOW THE SUB-SURFACE TO GET WATER FROM UNDERNEATH TO GET THE BLACK GOLD ( OIL ) GAS Prospect Selection In case of Production wells, prospect selection is identified by the need to maintain or increase reservoir production Exploration wells require geological and geophysical data gathering, processing and evaluation Surface geological study Subsurface mapping Identification of structures e.g. anticlines, salt domes, fault traps, sand bodies lenses Seismic Evaluation Historical Background 1808 PERCUSSION DRILLING BY CHINESE FIRST COMMERCIAL WELL 1859 CABLE TOOL PERCUSSION DRILLING 1918 WORLD DEEPEST WELL BY CABLE TOOL ( 7386 ft ) 1930 ROTARY DRILLING Modification In Drilling Rotary Drilling Coil Tubing BY THE PONDING ACTION OF THE DRILLING BITS BY THE ROTARY ACTION OF THE DRILL BITS USED FOR THE HORIZONTAL MULTILATERAL DRILLING Cable Tool What are the different Well Locations in terms of DrillingOnshore and Offshore Basic Drilling Rig Functions HOISTING DERRICK DRAW WORKS BLOCKS HOOK ROTATING ROTARY TABLE SWIVEL KELLY CIRCULATING PUMPS STAND PIPES SOLIDS CONTROL EQUIPMENT CONTROLLING BLOWOUT PREVENTOR CHOKE SYSTEM Basic Drilling Rig Functions Rig Components (Hoisting System) DERRICK The function of a derrick is to provide vertical clearance to the raising and lowering of drill string into and out of borehole Two type of Derricks Standard Derricks - it is of bolted construction and assembled part by part Mast – a portable derrick, one capable of being erected as a unit CROWN BLOCK The fi