随钻中子地层孔隙度测量装置设计

LWD neutron porosity measurement device

摘要:

随钻中子孔隙度测量可以测量岩层的孔隙度参数,其是勘探石油,煤层气的重要手段。可以直接用于寻找油(水)贮层,推断气层。其还可以帮助确定其他如岩性,黏土含量,含水饱和度等地层参数。并且可以通过结合其它测井参数,准确的评价出地层岩性等地质参数,能在石油的勘探和开发过程中发挥重要作用。本文介绍了中子孔隙度测井的原理,设计了一套随钻中子孔隙度测井装置的结构,设计并制作中子孔隙度测井装置所需的关键电路,并对该装置进行了下井实验。

Abstract:

LWD neutron porosity measurement can be measured porosity rock, which is an important means for exploration of oil and gas.It Can be directly used for oil (water) gas reservoir, inference. It can also help determine the other such as lithology, clay content, water saturation and formation parameters.And it can be combined with other logging parameters, accurate evaluation of formation lithology geological parameters, can play an important role in the exploration and development of oil.This paper introduces the principle of neutron porosity logging, designed a set of drilling with the structure of neutron porosity logging device, the key circuit design and production of neutron porosity logging device is required, and the device was well test.