CAJ | 학술논문

缝洞型碳酸盐岩是塔北地区哈拉哈塘油田主要储集层，油藏的储渗空间主要为规模不同的洞穴、溶蚀孔隙以及各级裂缝。缝洞连通性是油田勘探开发实践中高效井优选的重要依据，油田勘探开发实践证实，油藏呈现为由洞穴、孔洞和裂缝组成的相互连通的大型缝洞集合体的特征，且紧邻缝洞集合体的油藏开发情况差异非常大，油藏压力、日产量与累积产油量等都不同，给油田的开发带来困难。研究中针对缝洞型储层的强非均质性，提出裂缝强度量化描述、裂缝方向量化描述与动态资料相结合的研究思路与技术方法，通过三维油藏建模技术研究缝洞的连通性以及确定大型缝洞集合体的边界，结合实际生产情况，指导油藏高效开发井组部署。
봉동형탄산염암시탑북지구합랍합당유전주요저집층，유장적저삼공간주요위규모불동적동혈、용식공극이급각급렬봉。봉동련통성시유전감탐개발실천중고효정우선적중요의거，유전감탐개발실천증실，유장정현위유동혈、공동화렬봉조성적상호련통적대형봉동집합체적특정，차긴린봉동집합체적유장개발정황차이비상대，유장압력、일산량여루적산유량등도불동，급유전적개발대래곤난。연구중침대봉동형저층적강비균질성，제출렬봉강도양화묘술、렬봉방향양화묘술여동태자료상결합적연구사로여기술방법，통과삼유유장건모기술연구봉동적련통성이급학정대형봉동집합체적변계，결합실제생산정황，지도유장고효개발정조부서。
The fracture -cavern carbonate rocks are the main reservoirs for Halahatang Oilfield in Tabei area.The res-ervoir and flow space mainly consist of various scale of caves,dissolution pores and fractures.The fracture -cavern connec-tivity plays an important role in screening high efficient wells in the exploration and development practice of oilfield.The exploration and development practice indicated that the oil pool presents the characteristics of fracture -cavern type aggre-gation,which is communicated by caves,vuggy and fracture.The difference of reservoir development situation,such as res-ervoir pressure,daily oil production and cumulative oil production,is too large between the immediate vicinity aggregations, which brings a lot of difficulties to the oilfield development.In view of the strong heterogeneity of the fractured vuggy reser-voir,the study technological method was put forward,in which the quantitative description of fracture density and fracture direction was combined with dynamic production data.By 3D reservoir modeling,the connectivity of fracture -vuggy and the border of fracture -cavern type aggregation were determined,guiding the deployment of high efficiency well group based on the actual production situation.