CAJ | 학술논문

随着定向井技术的不断完善，丛式井钻井技术现已在国内各大油田广泛应用。华北油田雁63断块根据地质构造特征采用了定向丛式井开发，井眼采用五段制井眼轨道设计剖面，该区块布井多，井网密，整拖距离5 m，上直段并行井段长，井间碰撞因素较多，钻井施工过程中绕障难度大，对井眼轨迹控制和监测技术要求高。针对华北油田雁63断块丛式井特点在实钻过程中采用了定向剖面优化设计，MWD无线随钻定向与监测，及时调整井眼轨迹，保证了井眼轨迹的规则，减少了后期采油杆管的偏磨效应，施工过程中通过优化钻井参数、简化钻具结构、严格控制轨迹、优化钻井液体系等技术措施实现了安全快速钻井。
수착정향정기술적불단완선，총식정찬정기술현이재국내각대유전엄범응용。화북유전안63단괴근거지질구조특정채용료정향총식정개발，정안채용오단제정안궤도설계부면，해구괴포정다，정망밀，정타거리5 m，상직단병행정단장，정간팽당인소교다，찬정시공과정중요장난도대，대정안궤적공제화감측기술요구고。침대화북유전안63단괴총식정특점재실찬과정중채용료정향부면우화설계，MWD무선수찬정향여감측，급시조정정안궤적，보증료정안궤적적규칙，감소료후기채유간관적편마효응，시공과정중통과우화찬정삼수、간화찬구결구、엄격공제궤적、우화찬정액체계등기술조시실현료안전쾌속찬정。
With the improvement of directional well drilling teachnique, cluster well drilling technique has been widely accepted in domestic oil ifelds. It is also conducted in Yan63 Block of Huabei Oilifeld based on the geological characteristics. Five-section wellbore track was designed. The area is featured with big amount of wells, large well pattern density, long vertical well section, many well col-lision factors, and large dififculty of obstacle avoiding during drilling, so it need more requirement for wellbore trajectory control and monitoring. In view of the features above, in the real drilling process, directional proifle optimization design and wireless MWD direc-tion and monitoring are used to adjust well trajectory timely, which guarantees the wellbore shape, leading to less eccentric wear in later production. During the drilling process, quick drilling with safety is achieved through optimizing drilling parameters, simplifying drilling tool structure, strictly control trajectory, and optimizing drilling lfuid.