油田压裂用暂堵剂技术
New Technology of Diverting Agents Used in Oilfield Fracturing
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- 引用格式:
-
马如然,刘,音,常,青.油田压裂用暂堵剂技术[J].天然气与石油,2013,31(6):0.doi:
.New Technology of Diverting Agents Used in Oilfield Fracturing[J].Natural Gas and Oil,2013,31(6):0.doi:
- DOI:
- 作者:
- 马如然 刘 音 常 青
- 作者单位:
- 中国石油集团渤海钻探工程技术研究院
- 关键词:
- 暂堵剂；压裂；增产措施；酸压
Diverting agent; Fracturing; Stimulation; Fracture acidizing
- 摘要:
- 随着高含水、低渗透油田开发的不断深入，对油层压裂技术的要求越来越高，施工难度越来越大。暂堵剂技术是在一定条件下向目的层中泵入暂堵剂，利用层内渗透率的差异，而改变原有液体的流入方向，达到产生新裂缝的目的。在需要增产的地层中使用暂堵剂技术可以降低压裂施工难度、减少分段工具的使用数量，还能够提高单位井段的改造效率，即在段内压出两条以上的裂缝，或使裂缝转向。该技术在提高单井产量的同时，有效降低压裂成本。
关键词：
With continuous development of high water content and low permeability oilfields, reservoir fracturing construction becomes more and more difficult and requirements for fracturing technologies becomes increasingly strict. In order to decrease construction difficulties and number of required segmentation tools and increase reformation efficiency of each unit well section, it is necessary to apply temporary blocking technology for stimulating the subterranean formation. This technology is designed to fracture more than two fissures in the same interval or make the fissures divert, that is, pumping the diverting agents into the subterranean formation to be stimulated and utilizing permeability differences within the formation to change flow direction of treatment fluid so as to produce new fissures. Application of this technology can increase single well yield and reduce the fracturing costs effectively.
