NG Group
Is there, where the oil is...
 
HomeContact usSearch

 Site map 

About the company
The help information
Contacts
Contact essential elements
Structure
Structure of Open Company “NG-Group”
Russian version
Russian version











The technology for determination of the residual oil saturation in the developed oil formations applying Pulsed Neutron Logging

Application:


Quantitative determination of the residual oil saturation in the developed formation reflecting its utmost ability to give oil when using the applied methods of oil recovery.


Description:


The residual oil saturation is determined in the completely worked out productive reservoirs according to the Logging-Injection-Logging technology. The technology may be applied for the control over oil recovery and selection of the most efficient means for increasing the reservoir recovery.


Basic technological operations when conducting borehole works:


 descending the tubing with a funnel towards the top of the perforated formation;
 injection of the fresh water into the surveyed perforated formation. Injection is carried out until the formation is completely saturated with water. Saturation is monitored by periodic measurements of Pulsed Neutron Logging;
 injection of highly-mineralized water into the surveyed perforated formation. Injection is carried out until the formation is completely saturated with water.  Saturation is monitored by periodic measurements of Pulsed Neutron Logging;
Application of the technology allows to:
 to determine the ratio of residual oil saturation in the oil formation;
 to evaluate the extent an oil bed performance according to thickness.
Advantages of the technology:
 quantitative determination of residual oil saturation in the oil formation in the bedding environment;
 possibility of evaluating the efficiency of chemical agents used for increasing the oil recovery. In this case residual oil saturation is determined is twice before and after application of the chemical agent;
 availability of the original software.

6,38 Kb
Residual oil saturation according to the
 Logging-Injection-Logging technology
(Flash preview)

8,88 Kb
Efficiency of alkalified sulfuric acid
 as a means of increasing the oil recovery
(Flash preview)


Sections
 
  \/\
 
 
2006 NG Group.
  Tel..(85594) 7-12-34
  E-mail: tngf@tatneft.ru
  -, 2004
-