中国海上油气
中國海上油氣
중국해상유기
2014年
1期
78-81
,共4页
鹰滩页岩油气%EagleFord 组%钻井模式%井身结构%钻头%钻具组合%钻井液%钻井成本
鷹灘頁巖油氣%EagleFord 組%鑽井模式%井身結構%鑽頭%鑽具組閤%鑽井液%鑽井成本
응탄혈암유기%EagleFord 조%찬정모식%정신결구%찬두%찬구조합%찬정액%찬정성본
Eagle Ford shale oil and gas%EagleFord%drilling model%well structure%bit%bottomhole assembly%drilling fluid%drilling cost
美国德州鹰滩页岩油气项目是中海油在海外投资的最大非常规油气项目之一，该项目面临储层埋藏深、水平井段长、断层发育、上覆低压层漏失等难题。为此，在EagleFord组页岩地层水平井钻井作业中，通过钻井模式优选、井身结构优化、钻头及钻具组合优选、钻井液优化等一系列关键技术措施的有效实施，成功完成了EagleFord组页岩地层10口水平井的钻井作业，实现了单个钻头一趟钻完大曲率造斜井段及水平井段，钻井成本显著降低，可为其他页岩油气水平井钻井作业提供借鉴。
美國德州鷹灘頁巖油氣項目是中海油在海外投資的最大非常規油氣項目之一，該項目麵臨儲層埋藏深、水平井段長、斷層髮育、上覆低壓層漏失等難題。為此，在EagleFord組頁巖地層水平井鑽井作業中，通過鑽井模式優選、井身結構優化、鑽頭及鑽具組閤優選、鑽井液優化等一繫列關鍵技術措施的有效實施，成功完成瞭EagleFord組頁巖地層10口水平井的鑽井作業，實現瞭單箇鑽頭一趟鑽完大麯率造斜井段及水平井段，鑽井成本顯著降低，可為其他頁巖油氣水平井鑽井作業提供藉鑒。
미국덕주응탄혈암유기항목시중해유재해외투자적최대비상규유기항목지일，해항목면림저층매장심、수평정단장、단층발육、상복저압층루실등난제。위차，재EagleFord조혈암지층수평정찬정작업중，통과찬정모식우선、정신결구우화、찬두급찬구조합우선、찬정액우화등일계렬관건기술조시적유효실시，성공완성료EagleFord조혈암지층10구수평정적찬정작업，실현료단개찬두일쟁찬완대곡솔조사정단급수평정단，찬정성본현저강저，가위기타혈암유기수평정찬정작업제공차감。
CNOOC LTD’s America Eagle Ford shaleoil and gas assets is one of the biggest CNOOC over-seas unconventional resource investment in USA.For this project,there are a lot of challenges whendrilling horizontal wells,such as deeper target reser-voir,longer horizontal lateral,faults,lost circula-tion pressure depleted zone,etc.Through the effec-tive implementation of pad drilling model optimiza-tion,well structure optimization,drill bit and BHAselection and optimizing drilling fluid,10 horizontalwells are drilled successfully in Eagle Ford,and it’sa greatest successful to achieve a single bit drillingoperation the curve and horizontal section,the drill-ing operation cost is reduced significantly.This spe-cial case will provide good reference for other opera-tor’s horizontal well drilling of shale oil and gas.
