摘要
研制出了DL07系列堵漏剂,优化出了适合不同尺寸漏失通道的防漏堵漏配方和用量,并对其机理进行了探讨。室内实验结果表明:漏失通道为0～0.5mm时DL07-1加量为2%左右,漏失通道为0.5～1mm时DL07-7加量为4%左右,漏失通道为1～2mm时DL07-10、DL07-12加量为6%左右即可成功堵漏,提高承压能力超过3.5MPa,且该堵漏剂配伍性好,对钻井液其他性能几乎没有影响。该技术在二连油田阿31-112X井进行现场应用,取得良好效果。
In this paper,it developed DL07 series plugging agents,optimized plugging formula and dosage suitable for different size of leakage channel and its mechanism are discussed.In-door experiment results showed that:the optimal dosage of DL07-1 is about 2% for 0～0.5 mm leakage holes,the optimal dosage of DL07-7 is about 4% for 0.5-1 mm leak-age holes and the optimal dosage of DL07-10 or DL07-12 is about 6% for 1～2 mm leakage holes.The pressure containment is enhanced 3.5 MPa by those above.These sealing agents have a good compatibleness and take less effect on the performances of drilling fluid.These leakagetightening and caulking technology were used in A31-112x well of Erlian oilfield and two wells were sealed successfully.
出处
《石油地质与工程》
CAS
2010年第6期125-128,共4页
Petroleum Geology and Engineering
关键词
堵漏剂
研制
漏失通道
二连油田
sealing agents
preparation
leakage chan-nel
Erlian oilfield
