CAJ | 학술논문

基于膨胀管定位系统开发了膨胀管定位多分支井技术:在分支井钻井、完井甚至后续的采油、修井以及油层改造等作业中,各种工具均根据井下膨胀坐挂定位装置进行定位并作业的一种新型多分支井技术,具有工艺简单,完井后通径大和可以在小尺寸井眼内钻多个分支等特点,达到了国际TAML 4级完井水平.该技术通过膨胀坐挂定位装置实现了对斜向器的可靠定位;并可承受极大的钻压和扭矩,完全满足开窗、侧钻、等施工要求.在海上油田3口井中的成功应用证明该技术和装备成熟可靠,整套施工工艺和作业难度低,作业安全可靠性高,各工序施工信号明显,司钻易于操作.初步形成了主套管为177.8 mm(7 in)和244.5 mm(9%in)两个系列的膨胀管定位多分支井工具和工艺技术.图9参19
기우팽창관정위계통개발료팽창관정위다분지정기술:재분지정찬정、완정심지후속적채유、수정이급유층개조등작업중,각충공구균근거정하팽창좌괘정위장치진행정위병작업적일충신형다분지정기술,구유공예간단,완정후통경대화가이재소척촌정안내찬다개분지등특점,체도료국제TAML 4급완정수평.해기술통과팽창좌괘정위장치실현료대사향기적가고정위;병가승수겁대적찬압화뉴구,완전만족개창、측찬、등시공요구.재해상유전3구정중적성공응용증명해기술화장비성숙가고,정투시공공예화작업난도저,작업안전가고성고,각공서시공신호명현,사찬역우조작.초보형성료주투관위177.8 mm(7 in)화244.5 mm(9%in)량개계렬적팽창관정위다분지정공구화공예기술.도9삼19
A new multilateral drilling technology is developed based on the Solid Expandable Tubular (SET) fixing system. By this new technology, every kind of tools in drilling, completion, well repair and oil formation improvement are located and operated according to down-hole SET fixing equipment. This SET fixing multilateral drilling technology reaches the international TAML 4 completion level and has such characteristics as simple procedure, big bore size after completion, and drilling several branches in small size casing. In this technology, whipstock is located reliably on downhole SET fixing equipment, which can stand great drill pressure and torque to meet implementation requirement such as windows cutting, side drilling, and washover. The successful application in 3 wells in offshore oil fields shows that the SET fixing multilateral technology has low difficulty job procedure and operation, high reliability of job security, and obvious implementation signal to make driller easy operation. Two series of SET fixing multilateral tools and technology have been developed with their respective main casings being 177.8 mm (7 in) and 244.5 mm(9 5/8 in).