公开(公告)号：EP2861819A1

公开(公告)日：2015-04-22

申请号：EP13724131.1

申请日：2013-05-10

申请人： Halliburton Energy Services, Inc.

发明人： GEORGE, Shoy, C ,  SALGAONKAR, Lalit, P ,  PATIL, Prajakta, Ratnakar

IPC分类号： E21B43/04 ,  C09K8/514

CPC分类号： C09K8/514

摘要： A method of gravel packing a treatment zone of a well includes the steps of: (A) forming a treatment fluid including a continuous aqueous phase and gravel, wherein the aqueous phase includes: (i) water; (ii) diutan; (iii) oxidizer in the range of 0.1% to 2% by weight of the water; (iv) organic acid in the range of 0.5% to 5% by weight of the water; and (v) transition metal compound in the range of 0.001% to 0.25% by weight of the water; and (B) introducing the treatment fluid into the treatment zone; wherein the design temperature is less than 180°F; wherein the continuous phase of the treatment fluid has a viscosity in the range of 10 cP to 75 cP at the design temperature; and wherein the concentration of the organic acid is less than would cause the diutan to salt out at the design temperature.

摘要翻译： 砾石填充井的处理区的方法包括以下步骤：（A）形成包括连续水相和砾石的处理流体，其中所述水相包括：（i）水; （ii）di an; （iii）氧化剂的重量百分比为0.1％至2％ （iv）0.5重量％至5重量％水的有机酸; 和（v）过渡金属化合物的重量百分比为0.001％至0.25％ 和（B）将处理流体引入处理区域; 其中设计温度低于180°F; 其中所述处理流体的连续相在设计温度下具有在10cP至75cP范围内的粘度; 并且其中所述有机酸的浓度小于在所述设计温度下使所述二脱盐物脱盐的浓度。