A – B – C – D – E – F – G – H – I – J – K – L – M – N – O – P – R – S – T – U – V – W – X
| DARCI | Darci log |
| D | Darcy |
| D | Day |
| DAFW | Days away from work |
| DART | Days Away, Restricted work, or job Transfer |
| DDBHC | DDBHC waveform log |
| DMA | dead-man anchor |
| DECT | decay time |
| DDCV | Deep draft caisson vessel |
| DESFL | deep induction SFL log |
| DW | Deep water |
| DPT | deeper pool test, Lahee classification |
| DWH | Deepwater Horizon |
| DWOP | Deepwater operations plan |
| DEFSU | definitive survey report |
| DOA | delegation of authority |
| dP | Delta pressure |
| DELTA | delta-T log |
| DEN | density log |
| POR | Density Porosity Log |
| DECC | Department for Energy and Climate Change (UK) |
| DEPAN | deposit analysis report |
| DHC | depositional history curve |
| DD&A | Depreciation, depletion and amortization |
| DEPC | depth control log |
| DDET | depth determination log |
| DTT | depth to time |
| DDM | Derrick drilling machine (a.k.a. top drive) |
| DF | Derrick floor |
| DOO | Designation of operator |
| DC | Desoto Canyon Gulf of Mexico leasing area |
| DPP | Development and production plan |
| DL | development license (United Kingdom), a type of onshore license issued before 1996 |
| DOCD | Development operations coordination documents |
| DEV | development well, Lahee classification |
| DEVLG | deviation log |
| DS | Deviation survey, (also directional system) |
| DP | Dewpoint |
| DEXP | D-exponent log |
| DIEGR | dielectric gamma ray log |
| Delta | Difference between plan and performance |
| Crack spread | Difference between the price of crude oil and the price of products made from it |
| DPLD | differential pressure levitated device (or vehicle) |
| DLT | Digital linear tape |
| DWSS | dig-well seismic surface log |
| DAZD | dip and azimuth display |
| DINT | dip interpretation |
| DIPLP | dip lithology pressure log |
| DIPRM | dip removal log |
| DLIST | dip-list log |
| DIPBH | dipmeter borehole log |
| DIPFT | dipmeter fast log |
| DIP | dipmeter log |
| DQLC | dipmeter quality control log |
| DIPRE | dipmeter report |
| DIPSA | dipmeter soda log |
| DIPSK | dipmeter stick log |
| DAC | dipole acoustic log |
| DIPAR | dipole acoustic report |
| DSI | dipole shear imager |
| DD | Directional drilling |
| DIM | directional inertia mechanism |
| DIRS | directional survey log |
| DIRSU | directional survey report |
| DIBHC | DIS BHC log |
| DMR | Discharge monitoring report |
| DISFL | DISFL DBHC gamma ray log |
| DIS | DIS-SLS log |
| DAC | Distance amplitude curve |
| DPS | Distinct population segment |
| DCS | Distributed Control System |
| DSV | diving support vessel or drilling supervisor |
| DL | Dogleg |
| DLS | dog-leg severity (directional drilling) |
| DABS | Double action bypass sub |
| DBB | double block and bleed |
| DHCE | Downhole completion equipment |
| DNHO | downhole logging |
| DHPTT | downhole pressure/temperature transducer |
| DOWRE | downhole report |
| DHSV | downhole safety valve |
| DRI | drift log |
| DC | drill centre |
| DC | Drill collar |
| DDPT | drill data plot log |
| DIF | drill in fluids |
| DP | drill pipe |
| D&C | drilling and completions |
| DRLCT | drilling chart |
| DFR | drilling factual report |
| DH | drilling history |
| DRLOG | drilling log |
| DRPRS | drilling pressure |
| DRPG | drilling program report |
| DRLPR | drilling proposal/progress report |
| DR | drilling report |
| DRREP | drilling report |
| DWOP | Drilling well on paper (exercise) |
| DST | Drillstem test |
| DSTW | drill-stem test job report/works |
| DSTL | drill-stem test log |
| DSTR | drill-stem test report |
| DSTRE | drill-stem test report |
| DSTSM | drill-stem test summary report |
| DSTPB | drill-stem test true vertical depth playback log |
| DFT | Dry film thickness |
| DT | Dry Tortugas Gulf of Mexico leasing area |
| DRYRE | drying report |
| DSCAN | DSC analysis report |
| DSTG | DSTG log |
| DCAL | dual caliper log |
| DDNL | dual det. neutron life log |
| DISO | dual induction sonic log |
| DLL | dual laterolog (deep and shallow resistivity) |
| DPL | dual propagation log |
| DPRES | dual propagation resistivity log |
| DILB | dual-induction BHC log |
| DILL | dual-induction laterolog |
| DIL | dual-induction log |
| DILLS | dual-induction log-LSS |
| DILSL | dual-induction log-SLS |
| DSTND | dual-space thermal neutron density log |
| DWQL | dual-water quicklook log |
| DR | dummy-run log |
| DD | Dustin Dome Gulf of Mexico leasing area |
| DXC | DXC pressure pilot report |
| PP | DXC Pressure Plot Log |
| DGP | dynamic geohistory plot (3D technique) |
| DP | dynamic positioning |
| DPS | Dynamic positioning system |
| DP | Dynamically positioned |
| DPDV | dynamically positioned drilling vessel |
| DPSS | Dynamically positioned semisubmersible |