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Subject: Glossary of Drilling Report Abbreviations (вдруг пригодится) O&G, oilfield. Glossary of Drilling Report AbbreviationsThe following letter abbreviations are commonly found in drilling reports. ABD, ABND Abandoned BFPH Barrels of fluid per hour BHA Bottomhole assembly: includes the bit, stabilizers, drill collars, and other tools used below the drillpipe BHP Bottomhole pressure; usually measured with a pressure bomb on a wireline BLD Bailed; refers to the practice of removing debris from the hole with a cylindrical container on a wireline BO Barrels of oil BOP Blowout preventer(s) BOPD Barrels of oil per day BPH Barrels per hour BPD,B/D Barrels per day BPV Backpressure valve; a valve that allows fluid to flow through it in only one direction and therefore will maintain pressure (backpressure) on the downstream side BU Bottoms up; when circulation has displaced the mud from the bottom of the hole to the surface BW Barrels of water BWPD Barrels of water per day BWPH Barrels of water per hour CBL Cement bond log; an acoustic device for determining the condition of the bond between cement and hole, and cement and casing. CFG Cubic feet of gas CFGPD Cubic feet of gas per day CHK Choke; a restriction in a flowline or system, usually referring to a production choke during a test or to the choke in the well control system CIRC Circulate CMT Cement CNL Compensated neutron log; a radioactivity log for measuring porosity COMP Completed CP Casing pressure; pressure on the annulus between tubing and casing: this is measured at the surface CRD Cored CSG Casing DC Drill collar DF Drill floor or derrick floor DIL Dual induction laterolog; an electrical log for measuring resistivity DP Drillpipe DRLG Drilling DST Drillstem test FDC Compensated formation density log; a log that uses radioactivity to measure porosity FP Flowing pressure; usually refers to flowing tubing pressure FTP Flowing tubing pressure; pressure measured at the Christmas tree, while the well is flowing GCM Gas cut mud; mud containing quantities of gas from subsurface formations GIH Go in hole or going in hole; usually relating to the drillstring, a casing string,or a wireline device that is being lowered into the hole GL Ground level GOR Gas-oil ratio; ratio of gas to oil production during a test (SCF/bbl or m3/m3) GR Gamma ray log; a radioactivity log indicating lithology HGR Hanger; a piece of equipment used for hanging casing or tubing at the surface IES Induction electrical survey log; an electrical log for measuring resistivity IP Initial production; usually describing an initial production test ISF Induction spherically focused log; an elec trical log for measuring resistivity JTS Joints; as in joints of drillpipe or tubing KB Kelly bushing KBE Kelly bushing elevation KO Kicked off; deviated KOP Kick-off point; the depth at which a direc tional hole is deviated from vertical L/D Lay down; as in "lay down drillpipe," mean ing that the equipment is placed horizontally on a pipe rack L/S Long string; relating to the longest of two or more strings of tubing in a well with a multiple completion; the longest string of casing LCM Lost circulation material; material added to the drilling mud to correct lost circulation by plugging off fractures in the rock LOC Location; wellsite LSE Lease; refers to the property on which the well is being drilled M/U Make up; to assemble parts to form a com plete unit; to screw together; to mix or blend MCF Thousand cubic feet of gas MIR Moving in rig MIRT Moving in rotary tools (see MIR) MOR Moving out rig MW Mud weight; the density of the drilling fluid, usually given in pounds per gallon N/D Nipple down; the reverse of nipple up (N/U) N/U Nipple up; to bolt together valves or fittings, as in "nipple up BOP stack" OCM Oil cut mud; mud containing quantities of oil from subsurface formations OH Openhole: interval of hole without casing P/U Pick up; as in "pick up drillpipe," meaning that the pipe is picked up and assembled from a horizontal position, rather than having been stacked vertically P&A Plug and abandon; to plug the well with cement and remove surface equipment PBTD Plug back total depth: the depth of a well after it has been drilled and then partially plugged back to a shallower depth PERF Perforate PKR Packer: the anchoring and sealing device that blocks off the annular space between tubing and casing PL Pipeline POOH Pull out of hole; retrieve drillstring, tubing string, or wireline equipment from the hole POP Putting on pump: installing a pumping unit on a well RDRT Rigging down rotary tools REC Recover: usually pertains to an item lost or left in the hole RFT Repeat formation tester; electric wireline device for taking samples of formation fluids and pressures from multiple points in the hole RIH Running in hole or ran in hole, see GlH RMG Reaming: enlarging a previously drilled hole RTTS Retrievable test treat squeeze packer: a retrievable packer designed for use in performing operations in the hole, but not usually left in the well as part of the permanent completion equipment R/U Rig up; assemble and prepare for action; relates to the drilling rig itself or any other equipment S/S Short string; relating to the shortest of two or more strings of tubing in a well with a multiple completion SD,SS Sandstone SDO Shut down waiting on orders: waiting for instructions from management before proceeding with any activity SG Show of gas: gas in mud or cuttings SI Shut in SIBHP Shut in bottomhole pressure: bottomhole pressure measured after the well has been shut in for a significant period of time, usually 24 to 48 hrs or more SICP Shut-in casing pressure: casing pressure measured when the well is shut in SIDPP Shut-in drillpipe pressure; drillpipe pressure measured at the surface with well shut in, usually referred to during kick-killing procedures SIP Shut-in pressure: any shut-in rather than flowing pressure SITP Shut-in tubing pressure SLM Steel line measurement; measured with a steel measuring tape SP Self potential log: an electrical log for indi cating lithology SPD Spudded; began drilling first part of hole, often with a temporary "spudding rig" SQ, SQU Squeeze: as in "cement squeeze," where casing is selectively perforated and cement pumped into the perforations STDS Stands: as in "stands of pipe," meaning two or three joint sections stacked in the derrick SUR, SURV Survey: usually refers to a magnetic survey done to determine position of hole relative to the surface location SW Saltwater SWBD Swabbed: refers to the suction of fluids into the well, purposefully or inadvertently SX Sacks; as in sacks of cement; one sack of cement produces about 1.2 ft3 (.034 m3) of cement when mixed with water TBG Tubing TD Total depth TIH Trip in hole: to lower into the hole, same as "go in hole" TOOH Trip out of hole: opposite of TIH TOF Top of fish: relating to the depth of the uppermost part of a section of pipe lost in the hole TP Tubing pressure VIS Viscosity: usually refers to mud viscosity and is reported inunits of "seconds"; obtained from a Marsh funnel test W/C Water cushion: water placed in drillpipe during a DST to lessen pressure differential between formation and drillpipe WC Wildcat: well drilled in totally unexplored territory WIH Went in hole; past form of GIH or TIH WL, WIL Wireline WLM Wireline measurement; as opposed to a tubing or drillpipe measurement of hole depth WO/O Waiting on orders: waiting for instructions from management WOC Waiting on cement: time spent waiting for cement to set WOW Waiting on weather: time spent waiting for weather conditions to permit operations to continue |
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