石油钻探技术
石油鑽探技術
석유찬탐기술
PETROLEUM DRILLING TECHNIQUES
2014年
6期
30-33
,共4页
致密砂岩油藏%工厂化钻井%水平井%旋转导向%水力振荡器%机械钻速%吉木萨尔
緻密砂巖油藏%工廠化鑽井%水平井%鏇轉導嚮%水力振盪器%機械鑽速%吉木薩爾
치밀사암유장%공엄화찬정%수평정%선전도향%수력진탕기%궤계찬속%길목살이
tight sandstone reservoir%factory-like drilling%horizontal well%rotary steering%hydro-oscil-lator%rate of penetration%Jimusaer
为提高吉木萨尔致密砂岩油藏开发速度，降低钻井成本，满足大规模开发的要求，进行了致密砂岩油藏工厂化水平井钻井技术研究。根据吉木萨尔凹陷的地质特点及工厂化水平井的钻井和完井要求，将其设计为三开井身结构，并根据工厂化水平井钻井的特点制定井眼轨迹控制技术措施。在重点防碰井段利用Landmark软件进行防碰扫描，防止两井相碰。选用旋转导向钻具和螺杆＋水力振荡器钻进定向井段和水平井段，以提高定向井段和水平井段的钻速。工厂化水平井钻井技术在吉木萨尔区块不同平台钻了8口水平井，井眼轨迹控制良好，与设计吻合度高，成功实现了防碰绕障，2＃平台2口水平井各绕障115 m ，3＃平台1口井最大绕障265 m ；与2012年所钻的3口井相比，造斜段和水平段的平均机械钻速分别提高了240.0％和125.9％。这表明，致密砂岩油藏工厂化水平井钻井技术可有效防碰、降摩减阻和提高机械钻速，能满足吉木萨尔致密砂岩油藏大规模开发的要求。
為提高吉木薩爾緻密砂巖油藏開髮速度，降低鑽井成本，滿足大規模開髮的要求，進行瞭緻密砂巖油藏工廠化水平井鑽井技術研究。根據吉木薩爾凹陷的地質特點及工廠化水平井的鑽井和完井要求，將其設計為三開井身結構，併根據工廠化水平井鑽井的特點製定井眼軌跡控製技術措施。在重點防踫井段利用Landmark軟件進行防踫掃描，防止兩井相踫。選用鏇轉導嚮鑽具和螺桿＋水力振盪器鑽進定嚮井段和水平井段，以提高定嚮井段和水平井段的鑽速。工廠化水平井鑽井技術在吉木薩爾區塊不同平檯鑽瞭8口水平井，井眼軌跡控製良好，與設計吻閤度高，成功實現瞭防踫繞障，2＃平檯2口水平井各繞障115 m ，3＃平檯1口井最大繞障265 m ；與2012年所鑽的3口井相比，造斜段和水平段的平均機械鑽速分彆提高瞭240.0％和125.9％。這錶明，緻密砂巖油藏工廠化水平井鑽井技術可有效防踫、降摩減阻和提高機械鑽速，能滿足吉木薩爾緻密砂巖油藏大規模開髮的要求。
위제고길목살이치밀사암유장개발속도，강저찬정성본，만족대규모개발적요구，진행료치밀사암유장공엄화수평정찬정기술연구。근거길목살이요함적지질특점급공엄화수평정적찬정화완정요구，장기설계위삼개정신결구，병근거공엄화수평정찬정적특점제정정안궤적공제기술조시。재중점방팽정단이용Landmark연건진행방팽소묘，방지량정상팽。선용선전도향찬구화라간＋수력진탕기찬진정향정단화수평정단，이제고정향정단화수평정단적찬속。공엄화수평정찬정기술재길목살이구괴불동평태찬료8구수평정，정안궤적공제량호，여설계문합도고，성공실현료방팽요장，2＃평태2구수평정각요장115 m ，3＃평태1구정최대요장265 m ；여2012년소찬적3구정상비，조사단화수평단적평균궤계찬속분별제고료240.0％화125.9％。저표명，치밀사암유장공엄화수평정찬정기술가유효방팽、강마감조화제고궤계찬속，능만족길목살이치밀사암유장대규모개발적요구。
In order to accelerate the development of tight sandstone reservoirs and reduce the drilling cost to meet the demand of large‐scale development ,the factory‐like drilling technology of horizontal w ells for tight sandstone reservoir was researched .According to the geological characteristics of the Jimsaer area and requirements of facrory‐like drilling and completion for horizontal wells ,the casing program was de‐signed into three sections ,and made the technical measures of controlling well trajectory based on the char‐acteristics of cluster horizontal wells .Landmark software scanning was used to prevent two adjacent wells from colliding at key intervals ,and the ROP of drilling directional and horizontal sections was improved by employing a rotary steering tool ,the PDM and hydro‐oscillator .The technique was applied in order to drill eight horizontal wells in tight sandstone reservoir on different platforms in Jimusaer area ,and the well traj‐ectories were well controlled .They basically met the need of planning ,which successfully realized the anti‐collision and detouring .Two horizontal wells in platform 2# bypassed the barrier to 115 meters respective‐ly ,one well in platform 3# even bypassed to 265 meters .Compared with the three horizontal wells that drilled in 2012 ,the average ROP was raised by 240 % in the vertical section and 125.9 % in horizontal sec‐tion .The paper showed that the technology of factory‐like drilling of horizontal wells for tight sandstone reservoir can effectively prevent well collision ,reduce drag and friction ,improve ROP significantly ,and meet the demands of large‐scale development of tight sandstone reservoir in the Jimusaer Area .
