Wireline (Open-hole) Logging – Basics of Wireline Logging and Formation Evaluation

Posted by hgsba on October 31, 2018

Open-gap (Wireline) logging is one of a substantial scope of estimations and scientific systems utilized in development assessment of oil wells. ELDs

Wireline logging gives the incredible gathering spot to all development assessment techniques in oil wells. Just through open-gap logging can a constant record of estimation versus profundity be made of such a significant number of development properties. Specifically, wireline logs can record arrangement electrical resistivity, mass thickness, characteristic and instigated radioactivity, hydrogen substance, and versatile modulae. These crude estimations would then be able to be deciphered to give a ceaseless estimation – versus-profundity record of arrangement properties, for example, porosity, water immersion, and shake compose. Nearly no matter what, each very much penetrated for hydrocarbons (oil and gas) is logged with wireline instruments.

With the cost of oil at such a high at the present time, increasingly oil working organizations are preparing for all the more penetrating, and in this way more wireline logging, to augment their benefits during this season of high oil costs.

The genuine running of a log includes bringing down a device toward the finish of a logging link into an oil/gas well. A sensor, consolidated in a sonde together with its related hardware, is suspended in the red (well) by a multiconductor link. The signs from the sensor are adapted by the downhole gadgets for transmission up the link to the control board at surface which thusly conditions the flag for the recorder. As the link is raised or brought down, it initiates some profundity estimating gadget, a sheave wheel (pulley) which thus actuates an account gadget. At long last, some type of multiplication happens to give a printed copy of the recorded information which is known as the well log.

All in all, wireline logging language recognizes a logging review/run, a logging apparatus, and a log and also a bend. There is every now and again some disarray about these terms when logging matters are talked about. A logging review is given by a logging administration organization for a customer. Over the span of the logging pass/study, the logging architect may utilize a few logging devices, and record a few unique logs on every one of which are introduced a few distinct bends. The logging apparatuses utilized, thus might be made out of different sensors.

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