Results 211 to 220 of about 1,682 (251)
Some of the next articles are maybe not open access.
Logging While Drilling Resistivity Images for Geosteering
SPE Middle East Oil and Gas Show and Conference, 2013Abstract Petroleum Development of Oman (PDO) is undertaking a waterflood development of one of their fields. This project requires drilling horizontal wells in heterogeneous carbonate formations. The water injection wells are planned to be drilled in the lower part of the reservoir which has high porosity and water saturation of minimum ...
Magdi Bazara +5 more
openaire +1 more source
SPE Annual Technical Conference and Exhibition, 2006
Abstract A new while-drilling propagation resistivity system with a novel architecture has been developed that greatly reduces lost-in-hole exposure and provides increased operational efficiency and flexibility. The downhole electronics, antennas, and battery are mounted in a retrievable and reseatable tool unit with a 1.75-in.
Mark Frey +3 more
openaire +1 more source
Abstract A new while-drilling propagation resistivity system with a novel architecture has been developed that greatly reduces lost-in-hole exposure and provides increased operational efficiency and flexibility. The downhole electronics, antennas, and battery are mounted in a retrievable and reseatable tool unit with a 1.75-in.
Mark Frey +3 more
openaire +1 more source
Application Status of the Technology of Logging While Drilling
Advanced Materials Research, 2014The data of Logging While Drilling is used for Geosteering and evaluation of layers. Compared with traditional logging, LWD has its own advantages, real-time, security, and it could obtain original information of the destination formation.With the rapid development of logging tools design, LWD tools have a large improvement, and various tools used for ...
Qun Peng, Quan Hou Li, Qi Zhang
openaire +1 more source
Temperature Correction in NMR Logging While Drilling
SPE Oil and Gas India Conference and Exhibition, 2017Abstract The formation temperature affects numerous logging measurements including nuclear magnetic resonance (NMR) data. Obtaining NMR porosity requires the multiplication of the raw NMR signal by a factor that includes the temperature in the sensitive volume.
Radu Coman, Holger Tietjen
openaire +1 more source
Logging While Drilling Via Autonomous Sonde
Proceedings, 2014We present a method of geophysical logging while tripping drill rods to produce logs similar to wireline logs. The process is autinmous in that it does not require any significant changes by the driller and does not requie any modifications to the drill rig.
A. Kepic +5 more
openaire +1 more source
Transducer for sonic logging-while-drilling
The Journal of the Acoustical Society of America, 1998An acoustic wave transducer useful in sonic logging while drilling a borehole includes an array of transducer elements mounted circumferentially around a drill collar. The elements are bonded in an elastomer ring that is received in an external groove in the collar and are protected by a shield having windows. The elements are electrically connected in
openaire +1 more source
Nuclear Logging-While-Drilling Measurement: An Assessment
Proceedings of Middle East Oil Show and Conference, 1997Abstract The state-of-the-art in nuclear logging-while-drilling measurements is discussed. Recent improvements in design and interpretation to address the difficulties encountered by these measurements in the dynamic borehole environment that exists are described. Examples of evaluation of the measurement from field data are given.
A. Badruzzaman +3 more
openaire +1 more source
2016
The crucial element in logging that has so far been covered up, is the wellbore and the drilling process that creates it. Although it is beyond the scope of this volume to discuss drilling, there are several aspects that merit mention in their relationship to logging.
openaire +1 more source
The crucial element in logging that has so far been covered up, is the wellbore and the drilling process that creates it. Although it is beyond the scope of this volume to discuss drilling, there are several aspects that merit mention in their relationship to logging.
openaire +1 more source
A deep resistivity logging-while-drilling device for proactive geosteering
The Leading Edge, 2003Reading deep into the formation has always been an ojective of formation evaluation. Historically, when drilling vertical wells, reading deep involved imaging seismic reflectors with intermediate vertical seismic profile (VSP) runs to “look ahead” and to assess invasion or borehole damage with deep-resistivity devices.
J. Seydoux +7 more
openaire +1 more source
Logging While Drilling Measurements: From Correlation to Evaluation
Proceedings of International Oil Conference and Exhibition in Mexico, 2007Abstract Since their origin in 1912, wireline-conveyed logging tools have firmly established themselves as the industry preferred tools and often the only accepted formation evaluation method. Since its inception over 25 years ago, Logging While Drilling (LWD) formation evaluation measurements have been often viewed as correlation only ...
Edward Tollefsen +2 more
openaire +2 more sources