| During exploitation and production of oil field, it is very important to determine gas liquid interfacefor oil gas zone in oilfield. For Daqing Lamadian oilfield, some test wells are regularly selected tomeasuring pressure and control gas liquid interface in order that keep the pressure balance in stratum. Forthis reason, there are about 80 wells every year and runs two times pressure measurement for each well.In Daqing Logging & testing service company, just only one importing Neutron-neutron & CCLlogging tool has been scrapped because it has been run for 24 years. A kind of new Neutron-neutron & CCLlogging tool is developed from on Dec. 2004 to on Apr. 2006. It can be used to run in the wells thatdetermine gas liquid interface of stratum. It can supply total 2 parameters in one run, which are Neutronand CCL.This tool consists of neutron section, CCL section and neutron source cabin. It fits with PL2000 andPHASE surface system with the mono-cable.Now, the reliable and high temperature(150℃) & high pressure(100Mpa) specifications of thedeveloped tools are tested and verified through in 24 wells in the Lamadian oilfield. Also get a good qualityresult of testing and logging.
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