Darryl E. Trcka
18Patents
9h-index
19Co-inventors
69Inventor score
Filing activity: Sep 28, 1993 → Oct 4, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7365308B2 | Measurement of formation gas saturation in cased wellbores using pulsed neutron instrumentation | Physics | 23 | Expired |
| US7565833B2 | Automatic adjustment of NMR pulse sequence to optimize SNR based on real time analysis | Physics | 20 | Active |
| US5404752A | Method for measuring the velocity of water flow through nested conduits | Fixed Constructions | 13 | Expired |
| US7361887B2 | Measurement of formation gas pressure in cased wellbores using pulsed neutron instrumentation | Physics | 13 | Expired |
| US5949069A | Method and apparatus for measuring volumetric water flow rates in highly inclined wellbores | Physics | 12 | Expired |
| US7566869B2 | Measurement of water-oil saturation using pulsed neutron instrumentation | Physics | 12 | Active |
| US7253402B2 | Apparatus and method for determining thermal neutron capture cross section of a subsurface formation from a borehole using multiple detectors | Physics | 11 | Expired |
| US7372018B2 | Determination of gas pressure and saturation simultaneously | Physics | 10 | Expired |
| US7301338B2 | Automatic adjustment of NMR pulse sequence to optimize SNR based on real time analysis | Physics | 10 | Expired |
| US9012836B2 | Neutron logging tool with multiple detectors | Physics | 9 | Active |
| US7554081B2 | Method and apparatus for determining silicon content of the earth formations in cased well bores | Physics | 8 | Active |
| US7227129B2 | Flowshot technique | Physics | 7 | Expired |
| US7186971B2 | Flowshot technique | Physics | 6 | Expired |
| US7117733B2 | Dynamic logging speed | Physics | 5 | Expired |
| US9890632B2 | Systems, computer medium and computer-implemented methods for logging using a logging tool with adjustable detectors | Physics | 3 | Active |
| US9863895B1 | Systems and methods for monitoring casing cement integrity | Physics | 3 | Active |
| US10215880B1 | Pulsed neutron determination of gravel pack density | Physics | 2 | Active |
| US7566867B2 | Apparatus and method for detecting gamma ray radiation | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.