Key;
Laboratory;
of;
Petroleum;
Resource;
and;
Prospecting,;
China;
University;
of;
Petroleum;
(Beijing),;
Beijing;
102249,China;
and;
Development;
Research;
Institute,;
PetroChina;
Tarim;
Oilfield;
Company,;
Korla,;
Xinjiang;
841000,;
China;