低浓度羟丙基胍胶压裂液在苏里格气田的应用
Application of Low Concentration Hydroxypropylguar Gum Fracturing Fluid in Sulige Gas Field
浏览(3246) 下载(3)
- 引用格式:
-
杨冠科,王,成.低浓度羟丙基胍胶压裂液在苏里格气田的应用[J].天然气与石油,2014,32(2):0.doi:
Yang Guanke, Wang Cheng.Application of Low Concentration Hydroxypropylguar Gum Fracturing Fluid in Sulige Gas Field[J].Natural Gas and Oil,2014,32(2):0.doi:
- DOI:
- 作者:
- 杨冠科 王 成
Yang Guanke, Wang Cheng
- 作者单位:
- 中国石油集团长城钻探工程公司
CNPC Great Wall Drilling Company
- 关键词:
- 低浓度压裂液；羟丙基胍胶；苏里格气田
Sulige Gas Field; Low temperature separation; Treatment plant; Dew point control; Refrigerant
- 摘要:
- 针对苏里格气田低孔、低渗透储层压裂增产改造的需要，在优化胍胶、交联剂和压裂液中其他助剂的类型并降低使用浓度的基础上，开发出一种新型低浓度羟丙基胍胶压裂液体系，并与常规羟丙基胍胶压裂液进行对比分析。结果表明：低浓度羟丙基胍胶压裂液体系的压裂液破胶液残渣含量为290 mg/L，不到常规浓度羟丙基胍胶压裂液残渣含量的2/3；低浓度羟丙基胍胶压裂液体系增稠效率高，携砂性能佳。截至2012年底，低浓度羟丙基胍胶压裂液体系在苏里格气田的3口直井和1口水平井上得到了成功应用。直井平均单井产气量为1.756 8×104 m3/d，相比采用常规压裂工艺的邻井产气量1.409 8×104 m3/d，增产效果明显。
According to the need of stimulating low porosity and low permeability reservoir, a new low concentration hydroxypropylguar gelled fracturing fluid system was developed by optimizing types and concentrations of guar gum, cross-linker and other agents in fracturing fluid system and conducted is contrastive analysis on conventional hydroxypropylguar gelled fracturing fluid with the new one. Analysis results show that residue content of this new fracturing fluid was only 290 mg/L, less than 2/3 of residue content in conventional fracturing fluids. The fracturing fluid has high thickening efficiency and good sand-carrying performance. By the end of 2012, the fracturing fluid has been successfully applied to 3 vertical wells and 1 horizontal well in Sulige Gas Field. Practical application results show that the new fracturing fluid has obvious yield-increasing effect.
