CAJ | 학술논문

苏丹3/7区水平井施工存在着邻井井距大、参考井相对少、目的层不确定的地质特点,而在工程方面甲方要求不作导眼设计和施工中不能填井,为此为满足甲方需求及水平井油层钻进的最大钻遇率,在工程设计上采用了与国内不同的剖面设计。通过长城钻探和其它国际公司在该区块实施的水平井总体来看,该区块水平井轨迹剖面设计有一定的可借鉴性。本文通过解析该区块水平井剖面设计,介绍了苏丹3/7区水平井轨迹剖面设计情况,以望为国内类同地质情况下的水平井设计提供一点参考作用。
소단3/7구수평정시공존재착린정정거대、삼고정상대소、목적층불학정적지질특점,이재공정방면갑방요구불작도안설계화시공중불능전정,위차위만족갑방수구급수평정유층찬진적최대찬우솔,재공정설계상채용료여국내불동적부면설계。통과장성찬탐화기타국제공사재해구괴실시적수평정총체래간,해구괴수평정궤적부면설계유일정적가차감성。본문통과해석해구괴수평정부면설계,개소료소단3/7구수평정궤적부면설계정황,이망위국내류동지질정황하적수평정설계제공일점삼고작용。
In Sudan 3/7 Block,there are three geological features including the larger distance between adjacent wells,fewer reference wells,uncertain intended zone,At the same time,the oil company requires no pilot design and no plug-back during operation.In order to meet demands and get the best oil layer drilling rate,a special engineering profile design that is different from those in China is conducted.This trajectory design is definite reference and useful through analyzing the successful finished horizontal wells drlled by GWDC and other international drlling company in this block.This paper explains the horizontal well profile design and trajectory design in Sudan 3/7 Block,It is expected to provide a reference for the horizontal well design under the similar geological conditions.