隆页1HF井桥塞分段大型压裂技术  

Large segment fracturing technology of pumping bridge plug in well Longye-1HF

作　　者：张建[1] 熊炜[1] 赵宇新 

机构地区：[1]中国石化华东油气分公司石油工程技术研究院,江苏南京210031

出　　处：《油气藏评价与开发》2018年第1期76-80,共5页Petroleum Reservoir Evaluation and Development

摘　　要：隆页1HF井是位于川东南武隆向斜构造的重点探井,目的层是下志留统龙马溪组,与涪陵焦石坝地区背斜构造页岩井压裂施工相比较,具有破裂压力高、延伸压力高、加砂困难等特点。依据武隆区块地质条件,龙马溪组页理发育,石英含量较高,但地应力差异系数中等偏小,以提高储层的改造体积为目标,开展了武隆常压页岩水平井压裂技术研究。采用泵送桥塞与射孔联作技术,优选低伤害减阻水和活性胶液混合压裂工艺,优化了施工排量和压裂参数,压裂施工共分17段,压后测试取得6.2×10~4m^3/d的工业气流,证实了武隆区块中浅层页岩储层的含气性能,压后产能取得突破。The well Longye-1 HF is one of the key exploration wells locating in Wulong syncline structure of southeast Sichuan. Its target stratum is Longmaxi formation of lower silurian. Compared with the fracturing of the shall wells in anticline of Jiaoshiba area in the city called Fuling, the well Longye-1HF have the characteristics of high fracture pressure, high extension pressure and diffi- cult sand adding. According to the geologic condition of Wulong area, Longmaxi formation has good lamellation development and high quartz content. However, the ground stress difference coefficients are small. In order to stimulate the transform volume of the reservoir, the research were conducted on the fracturing technology of the atmospheric shale horizontal wells in Wulong. Through the pumping bridge plug and perforating technology, we selects a mixed fracturing fluid of low damage slick-water and activity glue, and optimizes the construction displacement and fracture parameters. The fracturing construction is divided into 17 segments, and after fracturing, it achieves 6.2×10^4m^3/d industrial gas. The results verify the gas bearing properties of the middle-shallow shale reservoir in Wulong block, and the production capacity achieves the breakthrough.

关 键 词：分段压裂 压裂液 支撑剂 隆页1HF 

分 类 号：TE371[石油与天然气工程—油气田开发工程]