CAJ | 학술논문

为经济高效地开发致密砂岩油藏，并为国内同类型油气田开发提供借鉴，进行了Daylight油田优快钻井技术研究。对Daylight油田地层岩性进行了研究，根据地层压力优化了井身结构；通过分析测井资料并结合统计数据，研制了个性化的钻头；在分析钻井技术难点、地层压力的基础上，研制了油基钻井液体系，并采取严格措施确保其性能稳定；采取防碰技术控制井眼轨迹，满足了井工厂钻井的要求；优选先进的井下工具进行配套应用。该油田油气井井身结构按地区简化为二开和三开2种；研制了适应该地区软硬交错地层的复合钻头；油基钻井液体系为井壁稳定提供了保障；提前防碰技术缩短了滑动钻进时间；振荡钻井技术和AGITATOR井下工具可以解决水平井钻井中的托压问题，黑匣子为分析钻柱涡动提供了数据支持。应用结果表明，同地区平均井深为3000 m的井，平均钻井周期由原来的18 d缩短为8 d。Daylight油田优快钻井技术研究为快速钻井提供了保证，为国内致密油藏开发提供了技术参考。
위경제고효지개발치밀사암유장，병위국내동류형유기전개발제공차감，진행료Daylight유전우쾌찬정기술연구。대Daylight유전지층암성진행료연구，근거지층압력우화료정신결구；통과분석측정자료병결합통계수거，연제료개성화적찬두；재분석찬정기술난점、지층압력적기출상，연제료유기찬정액체계，병채취엄격조시학보기성능은정；채취방팽기술공제정안궤적，만족료정공엄찬정적요구；우선선진적정하공구진행배투응용。해유전유기정정신결구안지구간화위이개화삼개2충；연제료괄응해지구연경교착지층적복합찬두；유기찬정액체계위정벽은정제공료보장；제전방팽기술축단료활동찬진시간；진탕찬정기술화AGITATOR정하공구가이해결수평정찬정중적탁압문제，흑갑자위분석찬주와동제공료수거지지。응용결과표명，동지구평균정심위3000 m적정，평균찬정주기유원래적18 d축단위8 d。Daylight유전우쾌찬정기술연구위쾌속찬정제공료보증，위국내치밀유장개발제공료기술삼고。
In order to develop tight sandstone reservoirs economically and efficiently ,and provide refer-ences for development of similar oil and gas fields ,the drilling technologies in Canada Daylight Oilfield have been investigated .By analyzing main affecting factors on optimized drilling technologies ,some important a-chievements have been obtained ,including casing program optimization on the basis of formation pressure ;specific bit developed through logging data analysis and statistics ;oil-base drilling fluid system developed through the analysis of drilling troubles and formation pressure ,and anti-collision drilling techniques were taken to control wellbore trajectory ,so as to meet the requirement of well factory drilling ;Optimization of advanced downhole tools for matching application ;wellbore structures are simplified as two forms ,i .e .sec-ond spudding and third spudding sections ;the composite bits for the alternative hard and soft formations were developed ;oil-base drilling system provided safeguard for well bore stability ;anti-collision in advance reduced the sliding drilling time ;vibration drilling and AGITATOR downhole tools solved the BHA drag , black box provided real data analysis for the vortex of drill string .The study results show that drilling time of average 3 000 m wells in the area were reduced from 18 days to 8 days .The optimized dril-ling technolo-gies provide a guarantee for fast and optimum development of Daylight Oilfield ,and good re-ferences for ef-ficient development of tight oil and gas fields in China .