D26油藏复合调剖体系研制与评价  

Compound profile control technology and evaluation in D26 reservoir

作　　者：陈佳[1] 王健[1] 倪聪[2] 李勇凯 秦山[1] 

机构地区：[1]西南石油大学油气藏地质及开发工程国家重点实验室,四川成都610500 [2]中海油田服务股份有限公司,天津300400

出　　处：《油气藏评价与开发》2016年第5期44-48,共5页Petroleum Reservoir Evaluation and Development

基　　金：国家自然科学基金"重力超覆下气体连续‘剥蚀’稠油边界层的驱油机制研究"(51574200)

摘　　要：大安油田D26油藏属于低渗透油藏，裂缝发育，优势通道明显，稳油控水技术难度大。针对此问题研制了预交联颗粒与二次交联凝胶的复合调剖体系配方：SD-410颗粒（粒径1-3 mm）0.01 PV ＋HPAM浓度1400 mg/L＋JQ-1浓度200 mg/L＋FJ-1浓度200 mg/L＋促凝剂CA浓度50 mg/L＋热稳定剂ST浓度50 mg/L。该体系在原油中最高膨胀倍数可达3.79倍，突破压力2.77 MPa，具有良好的耐冲刷稳定性，且能够适应D26油藏80℃的平均油藏温度，有效封堵大裂缝，具有良好的推广应用前景。D26 reservoir of Da’an oilfield belongs to low permeability reservoir, which has abundant fractures and obvious preferential path for flow, so it is difficult to stabilize oil production and control water. According to this problem, a compound profile control system formula has been developed, which involves 0.01 PV of SD-410 particle （particle size is 1-3 mm）, 1 400 mg/L of HPAM, 200 mg/L of JQ-1, 200 mg/L of FJ-1, 50 mg/L of CA and 50 mg/L of ST. The highest expansion times can reach 3.79 and breakthrough pressure is 2.77 MPa, which has good erosion resistant property, and can be adapted to average 80 ℃ of D26 reservoir, thereby effectively plugging large fracture and having a good prospect of popularizing and application.

关 键 词：低渗透裂缝性油藏 复合调剖 预交联颗粒 二次交联凝胶 采收率 

分 类 号：TE357[石油与天然气工程—油气田开发工程]