探矿工程-岩土钻掘工程
探礦工程-巖土鑽掘工程
탐광공정-암토찬굴공정
Exploration Engineering (Rock & Soil Drilling and Tunneling)
2015年
9期
30-33,37
,共5页
谭松成%高学生%刘彬%黄帆
譚鬆成%高學生%劉彬%黃帆
담송성%고학생%류빈%황범
钻头选型%精细控压钻井%深井%超深井%优快钻井工艺%大港油田
鑽頭選型%精細控壓鑽井%深井%超深井%優快鑽井工藝%大港油田
찬두선형%정세공압찬정%심정%초심정%우쾌찬정공예%대항유전
bit selection%fine pressure control drilling%deep and ultra deep well%optimized and fast drilling%Dagang oil-field
大港油田深井、超深井提速困难主要是由于馆陶组厚层底砾岩和沙河街组致密泥岩的岩石可钻性差、深部油气藏存在异常高温、高压现象，且钻井液具有高密度和高粘度的特点。为探索适合大港油田的深井、超深井优快钻井配套技术，结合滨深24－5－27井的钻井实例展开了研究。通过优选钻井液体系、应用精细控压钻井技术，以及高效PDC钻头＋螺杆马达复合钻井技术，实现该井完钻井深4510 m，钻井周期36天，全井平均机械钻速为11．56 m／h的快速钻井效果。研究结果表明，该井钻井周期的缩短主要得益于全井机械钻速的提高，以及生产组织的有序衔接和保证。相对所在区块的历史指标井，该井机械钻速提高15．27％，二开和三开的生产组织时间缩短31．68％，钻井周期缩短18．78％。该优快配套钻井技术可为大港油田高效开发深部油气藏提供工程技术保障。
大港油田深井、超深井提速睏難主要是由于館陶組厚層底礫巖和沙河街組緻密泥巖的巖石可鑽性差、深部油氣藏存在異常高溫、高壓現象，且鑽井液具有高密度和高粘度的特點。為探索適閤大港油田的深井、超深井優快鑽井配套技術，結閤濱深24－5－27井的鑽井實例展開瞭研究。通過優選鑽井液體繫、應用精細控壓鑽井技術，以及高效PDC鑽頭＋螺桿馬達複閤鑽井技術，實現該井完鑽井深4510 m，鑽井週期36天，全井平均機械鑽速為11．56 m／h的快速鑽井效果。研究結果錶明，該井鑽井週期的縮短主要得益于全井機械鑽速的提高，以及生產組織的有序銜接和保證。相對所在區塊的歷史指標井，該井機械鑽速提高15．27％，二開和三開的生產組織時間縮短31．68％，鑽井週期縮短18．78％。該優快配套鑽井技術可為大港油田高效開髮深部油氣藏提供工程技術保障。
대항유전심정、초심정제속곤난주요시유우관도조후층저력암화사하가조치밀니암적암석가찬성차、심부유기장존재이상고온、고압현상，차찬정액구유고밀도화고점도적특점。위탐색괄합대항유전적심정、초심정우쾌찬정배투기술，결합빈심24－5－27정적찬정실례전개료연구。통과우선찬정액체계、응용정세공압찬정기술，이급고효PDC찬두＋라간마체복합찬정기술，실현해정완찬정심4510 m，찬정주기36천，전정평균궤계찬속위11．56 m／h적쾌속찬정효과。연구결과표명，해정찬정주기적축단주요득익우전정궤계찬속적제고，이급생산조직적유서함접화보증。상대소재구괴적역사지표정，해정궤계찬속제고15．27％，이개화삼개적생산조직시간축단31．68％，찬정주기축단18．78％。해우쾌배투찬정기술가위대항유전고효개발심부유기장제공공정기술보장。
It is difficult to speed up drilling in deep and ultra-deep wells in Dagang oilfield mainly because of the poor dril-lability in conglomerate of Guantao formation and compact mudstone of Shahejie formation;abnormal high temperature and high pressure in deep oil and gas reservoir and the characteristics of high density and the high viscosity of the drilling fluid. To explore the matching technologies suitable for optimized and fast drilling of deep and ultra-deep wells in Dagang oilfield, the research was carried out based on the drilling case of Binshen 24-5-27.By the optimization of drilling fluid systems, application of drilling with fine pressure control and compound drilling with effective PDC bit +screw motor, this project was completed with a drilled depth of 4510m, drilling cycle of 36 days and average penetration rate of 11.56m/h.The re-search shows that the effective drilling cycle is mainly profited from the improvement of ROP and ordered connection of pro-duction organization.Compared to the history index well of the same block, the ROP is increased by 15.27%, organizing time is shortened 31.68%in the second and the third sections, and the drilling cycle was shortened 18.78%.This matc-hing drilling technology could provide the engineering technology support for effective exploration of deep oil and gas reser-voir in Dagang oilfield.
