【摘要】 通过阻力系数 (FR)和残余阻力系数 (FRR)测定及岩心驱油实验 ,在实验室考察了一种疏水缔合聚合物HAP工业产品在大庆油田条件下 (4 5℃ ,天然或模拟人造岩心 )的驱油性能 ,并与一种HPAM工业产品 (M =1.43× 10 7,HD =2 7% )进行了对比。HAP溶液用矿化度 44 5 6mg/L的污水配制 ,HPAM溶液用矿化度 918mg/L的清水配制。 80 0mg/LHAP溶液流过水测渗透率 0 .0 37— 0 .333μm2 的天然岩心时产生的FR>10 ,FRR>2。在三层非均质人造岩心 (Vk=0 .72 ,Ka=0 .840— 1.12 0 μm2 )上进行的岩心驱油实验中 ,相同浓度 (10 0 0mg/L)HAP溶液驱替水驱残余油的采收率比HPAM溶液高 3%— 4% (OOIP) ,相同粘度 (4 1— 42mPa·s)的两种聚合物溶液驱油的采收率基本相同 ,但HAP的用量比HPAM少 2 30mg/L(770对 10 0 0mg/L)。更多还原

【Abstract】 The oil displacing performance of a commercial hydrophobically associating polymer (HAP) of 0.25 mol% hydrophobe and 28-30 mol% group COO - at Daqing reservoir conditions(45℃, reservoir or artificial Dykstra Parsons cores) is investgated in laboratory through RF and RRF measurements and core flooding experiments in comparison with a commercial HPAM( M=1.43×10 7, HD=27%) . The HAP solutions are prepared in brine of TSD =4 456 mg/L and the HPAM solutions-in fresh water of TSD=918 mg/L. For 800 mg/L HAP solution flown through reservoir cores of K w=0.037-0.333 μm 2 RF >10 and RRF >2 are observed. On Dykstra Parsons cores of V K =0.72 and K a= 0.840 -1.120 μm 2 the displacing efficiency of 1 000 mg/L HAP solution for residual oil after water flooding is by 3-4% OOIP higher than that of HPAM solution of equal concentration and the oil displacing efficiency of HAP and HPAM solutions of the same viscosity(41-42 mPa·s) is similar however the use level of HAP is by 230 mg/L less than that of HPAM(770 mg/L against 1 000 mg/L) in this case.更多还原