探矿工程-岩土钻掘工程
探礦工程-巖土鑽掘工程
탐광공정-암토찬굴공정
EXPLORATION ENGINEERING (DRILLING & TUNNELING)
2014年
7期
28-32
,共5页
张华卫%李梦刚%吴为%江朝
張華衛%李夢剛%吳為%江朝
장화위%리몽강%오위%강조
水平井%钻井技术%轨迹控制%钻具组合%钻井液%伊朗Y油田
水平井%鑽井技術%軌跡控製%鑽具組閤%鑽井液%伊朗Y油田
수평정%찬정기술%궤적공제%찬구조합%찬정액%이랑Y유전
horizontal well%drilling technology%trajectory control%DHA%drilling fluid%Y oilfield of IRAN
伊朗Y油田水平井面临着地质岩性多变、地质靶区不确定、裸眼井段长、井眼摩阻大、长水平段井眼轨迹控制困难等一系列钻井技术难点。结合Y油田一期水平井钻井实践,详细总结、形成了包括井身结构优化、螺杆钻具类型及其稳定器外径优选、钻头选型、侧钻钻具组合优选、水平井段优快钻井、KCl聚磺钻井液在内的6项水平井钻井技术。该技术在YS9井得到成功应用,定向段和水平段施工比设计提前12.4 d。 Y油田水平井优快钻井技术的应用,能够提高钻井成功率,缩短水平井的建井周期,降低钻井成本,对Y油田后续的水平井施工起到一定的指导和借鉴作用。
伊朗Y油田水平井麵臨著地質巖性多變、地質靶區不確定、裸眼井段長、井眼摩阻大、長水平段井眼軌跡控製睏難等一繫列鑽井技術難點。結閤Y油田一期水平井鑽井實踐,詳細總結、形成瞭包括井身結構優化、螺桿鑽具類型及其穩定器外徑優選、鑽頭選型、側鑽鑽具組閤優選、水平井段優快鑽井、KCl聚磺鑽井液在內的6項水平井鑽井技術。該技術在YS9井得到成功應用,定嚮段和水平段施工比設計提前12.4 d。 Y油田水平井優快鑽井技術的應用,能夠提高鑽井成功率,縮短水平井的建井週期,降低鑽井成本,對Y油田後續的水平井施工起到一定的指導和藉鑒作用。
이랑Y유전수평정면림착지질암성다변、지질파구불학정、라안정단장、정안마조대、장수평단정안궤적공제곤난등일계렬찬정기술난점。결합Y유전일기수평정찬정실천,상세총결、형성료포괄정신결구우화、라간찬구류형급기은정기외경우선、찬두선형、측찬찬구조합우선、수평정단우쾌찬정、KCl취광찬정액재내적6항수평정찬정기술。해기술재YS9정득도성공응용,정향단화수평단시공비설계제전12.4 d。 Y유전수평정우쾌찬정기술적응용,능구제고찬정성공솔,축단수평정적건정주기,강저찬정성본,대Y유전후속적수평정시공기도일정적지도화차감작용。
There are a series of drilling technical challenges in Y oilfield horizontal wells of Iran, complex geological lithol-ogy, uncertain geological target area, long uncased hole section, big borehole friction and difficult trajectory control of long horizontal well section.Based on the practice in the first phase horizontal well drilling in this oilfield, 6 drilling technolo-gies for horizontal well are summarized and formed:optimization of casing program, screw drill tool types and the optimiza-tion of stabilizer outer diameter, bit selection, bottom hole assembly ( BHA) for sidetracking, optimized and quick drilling in horizontal well section and KCl polysulfonate drilling fluid.These technologies are fruitfully applied in well YS9, the construction of directional and horizontal sections were completed 12.4 days ahead of schedule with shorter well construction cycle and reduced cost.