Dear Arsalan,

For near-surface, spatially restricted gilsonite deposits, I recommend Electrical Resistivity Tomography (ERT), which exploits contrasts in subsurface electrical resistivity to delineate the extent and geometry of the solid hydrocarbon. For deeper or more laterally extensive accumulations, Magnetotelluric (MT) surveying provides the necessary depth penetration and broad coverage.

wish this helps.

Dear Dr. Muhammad A. El Hameedy

Thank you for your correct and logical guidance, I will consult with the geophysics team and submit your suggestion. Good luck.

Depends on the depth of interest.

Gilsonite (natural asphalt) is a high-resistivity material compared to the surrounding sedimentary rocks. This can be delineated using the Electrical Resistivity (ER) method up to 100–150 meters with standard arrays; up to 300+ meters with deep-sounding techniques (e.g., Schlumberger or Wenner arrays with long electrode spreads). If the depth of interest is greater, the magnetotelluric (MT) method should be preferred.

Dear Anurag Tiwari

Thank you very much for your useful and detailed explanations. Good luck

The best-suited geophysical method for the exploration of solid hydrocarbon resources such as gilsonite is typically the Electrical Resistivity Method, particularly Resistivity Imaging or Electrical Resistivity Tomography (ERT).

The reason for the method is that,

Gilsonite is a naturally occurring solid bitumen and has high electrical resistivity compared to the surrounding sedimentary rocks.

Dear Ifeanyi Emmanuel Nwokporo

Thanks for your answer, that's right but tectonical activities and fracture zones and groundwater and underground voids are main problems for detecting the gilsonite.

For the exploration of Gilsonite resources, electrical resistivity (ERT) is the most suitable and widely used geophysical method, especially in fractured areas.

Dear Amirabbas

Thanks for your answer, I completely agree with you.

You are most welcomed Arsalan. Wish you achieve your goals in success.

Dear Dr. Muhammad A.El Hameedy

Thank you very much for your kind words and your kindness. Good luck.

Полевой метод ЯМР (модификация в магнитном поле Земли) позволит оконтурить все тектонические элементы внутри площади залегания гильсонита, все водоносные трещины, все скопления смеси углеводороды - вода. Этот прибор ЯМР буквально как миноискатель - только датчик - это петля из сигнального провода в виде рамки, которая в руках оператора передвигается по земле Съемка может быть по регулярным точкам. по профилям , регулярная или нерегулярная сетка наблюдений. Главное ограничение - глубина залегания гильсонита. Если добыча будет открытым способом, то технически и экономически - другими способами добыча будет нерентабельной