CAJ | 학술논문

苏里格东区气田上古砂岩气藏属于致密砂岩气藏，通过对该气田砂岩气藏压裂技术的研究及现场应用效果的分析，形成致密砂岩气藏储层改造的压裂技术，对苏里格东区及整个苏里格气田、乃至其它致密砂岩气藏的开发也具有指导意义。通过对苏里格气田东区上古砂岩气藏储层地质特征分析的基础上，提出了满足该区储层改造的压裂工艺，认为低伤害压裂液技术、多层分层压裂技术、水平井压裂技术是苏里格气田东区储层改造的主要技术。剖析了储层改造的压裂难点，认为储层易伤害、纵向多薄层发育、压裂液返排困难是该区储层改造的主要难点，并针对压裂难点提出了针对性措施。而这些针对措施也正是苏里格东区目前实施应用的关键技术。分析了东区实施的压裂关键技术及现场实施效果，形成了适合东区储层改造的压裂设计优化技术、直井定向井多层分层压裂技术、水平井多段分层压裂技术、低伤害压裂液技术、压裂液快速返排技术等综合技术。
소리격동구기전상고사암기장속우치밀사암기장，통과대해기전사암기장압렬기술적연구급현장응용효과적분석，형성치밀사암기장저층개조적압렬기술，대소리격동구급정개소리격기전、내지기타치밀사암기장적개발야구유지도의의。통과대소리격기전동구상고사암기장저층지질특정분석적기출상，제출료만족해구저층개조적압렬공예，인위저상해압렬액기술、다층분층압렬기술、수평정압렬기술시소리격기전동구저층개조적주요기술。부석료저층개조적압렬난점，인위저층역상해、종향다박층발육、압렬액반배곤난시해구저층개조적주요난점，병침대압렬난점제출료침대성조시。이저사침대조시야정시소리격동구목전실시응용적관건기술。분석료동구실시적압렬관건기술급현장실시효과，형성료괄합동구저층개조적압렬설계우화기술、직정정향정다층분층압렬기술、수평정다단분층압렬기술、저상해압렬액기술、압렬액쾌속반배기술등종합기술。
The ancient sandstone gas reservoirs are tight sandstone gas reservoirs.In the eastern of Sulige gas field, through the analysis of the effect fracturing technology research and field applications of the sandstone gas reservoir, the formation of the fracturing technology of the tight sandstone gas reservoirs in the transformation, have guiding significance to the development of the eastern of Sulige gas field and the Sulige gas field, and even of other tight sandstone gas reservoirs.Based on the analysis of Reservoir geology of ancient Tight Sandstone Gas l~eservoirs in the eastern of Sulige gas field, proposed the fracturing technologies to meet transformation of the reservoir, think that the low damage fracturing fluid technology, multi-layered fracturing technology and horizontal well fracturing technology is the main transformation technologies of the reservoir in the eastern of Sulige gas field. Analysis the fracturing difficult on the transformation of the reservoir, think that the reservoir easy to damage,more thin vertical development,the fracturing fluid flowback difficulty is the main difficulties of the transformation in the reservoir area, put forward specific measures to the fracturing difficulties, these measures are the key technologies of the implementation and application In The Eastern Of Sulige Gas Field. Analyzed the key fracturing technologies and the effect of the implementation in the eastern of Sulige gas field, formed the comprehensive technologies, including the optimization techniques of fracturing design,multi-layered fracturing for vertical well and directional well,horizontal well multi-stage stratified Fracturing technology,low damage fracturing fluid technology,flowback technology for fracturing fluid quickly for the transformation suitable of the reservoir in the eastern of Sulige gas filed.