FIELD: measurement of electrical characteristics of rocks around oil and gas wells.
SUBSTANCE: proposed device is built in drill pipe string and is provided with generator and receiving coils and electronic units. Device consists of two coaxial pipes made from radio-parent composite material. Outer detachable load-bearing pipe is connected with inner pipe by means of two sealing joints; one joint is sliding. Generator and receiving coils and electronic units are located in hermetic circular cavity between pipes and are secured on inner pipe.
EFFECT: enhanced sensitivity and maintainability; increased service life.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD AND APPARATUS FOR INDUCTION WELL LOGGING DURING DRILLING PROCESS | 2011 |
|
RU2466431C1 |
| BOTTOMHOLE REMOTE SENSING SYSTEM INFORMATION TRANSMISSION METHOD AND DEVICE | 2004 |
|
RU2270919C2 |
| METHOD AND DEVICE FOR COMBINED INDUCTION LOGGING AND LOGGING WITH IMAGING | 2007 |
|
RU2447465C2 |
| METHOD OF ELIMINATING PARASITIC EFFECT OF CONDUCTING DRILL PIPES ON RESULTS OF MEASURING TRANSIENT ELECTROMAGNETIC COMPONENTS WHEN DRILLING | 2005 |
|
RU2377607C2 |
| APPARATUS FOR MEASURING SPECIFIC CONDUCTIVITY AND ELECTRICAL MACROANISOTROPY OF ROCKS | 2013 |
|
RU2528276C1 |
| COMPENSATED ELECTROMAGNETIC LOGGING DEVICE DURING SLIM HOLE DRILLING | 2009 |
|
RU2392644C1 |
| COMPLEX GEOPHYSICAL EQUIPMENT ON DRILL PIPES (VERSIONS) | 2009 |
|
RU2401944C1 |
| INDUCTION COIL WITH SELECTION OF LEADS | 2006 |
|
RU2395104C2 |
| DEVICE FOR DETECTING ELECTROMAGNETIC FIELD CHARACTERISTICS USING TOROIDAL COILS | 2015 |
|
RU2578774C1 |
| COMPLEX DOWNHOLE DEVICE FOR EXPLORATION OF WELLS DURING DRILLING | 2015 |
|
RU2595278C1 |
