针对华北油田苏桥潜山地区固井双凝水泥浆体系性能优选

Performance Optimization of Cementing Double Curing System in Suqiao Buried Hill Area of Huabei Oilfield

苏桥地区为海相碳酸盐沉积地层,苏X井是华北苏桥地区的储气库井,位于冀中凹陷文安斜坡苏4潜山区,储层内部构造复杂,多为孔隙与裂缝构造,地层为海相碳酸盐岩,极易被腐蚀。所以,固井工作对储气库来说是重中之重。针对这一问题,结合文献调研与现场给出的资料,通过优选试验与评价试验为苏X井研制符合其固井条件的水泥体系。

The Suqiao area is a marine carbonate sedimentary formation.The Su-X well is a gas reservoir well in the Suqiao area of North China.It is located in the buried hill area of the Su-4Wen'an slope in the Jizhong Sag.The reservoir interior is complex with many pores and fractures structure,the formation of marine carbonates is easily corroded.Therefore,cementing work is the most important for gas storage.In response to this problem,combined with the literature research and field data,through the preferred test and evaluation test,the cement slurry system suitable for Su-X well cementing conditions was developed.