聚合物驱油田注入与产出聚合物的对比研究

Contrast  Research on Inje ted and Produced
Polymer in Polymer  Flooding Oilfield

穆丽娜 王业飞 由 庆

Mu Lina,Wang Yefei ,You Qing.

中国石油大学石油工程学院, 山东东营257061

 (College of Petroleum Engineering, China
U niversity of P etroleum, Dongy ing 257061, China ),

Applying Amer ican millipo re b iopro cess d iv ision, the
m ethod of stra in ing, deaeration, extraction, filtration,
constant we ight has been estab lished in this paper, wh ich can
determ ine the concen tra tion of HPAM accurate ly and
elim ina te the interferences o f sa lt and o ther im pur ities on the
resu lts of its re lative m olecular we ight and degree of
hydro lys is. The contrast research has been pe rfo rm ed on the
injected and produced po lym er in six po lym er flood ing o il
w e lls of Gudao fie ld, ind ica ting that the physical and
chem ica l charac teristics o f the polym er have changed
ev idently during the process of injection and flow in the
form ation. In add ition, in term of producing w e ll in jecting
po lyme r a t the same tim e, the later the tim e o f po lym er
produced is, the deeper the laye r is and the longer the
spac ing of w e lls is, the m ore ser ious the deg radation and
hydro lys is o f po lym er are.