CAJ | 학술논문

运用铸体薄片、荧光薄片、扫描电镜、X衍射、压汞曲线等分析测试手段，对吕家庄油田古新统阜宁组二段储层孔隙结构特征进行了较为细致的研究。结果表明，阜二段储层孔隙主要是以溶蚀作用形成的小孔为主；喉道相对狭小，以细喉为主，呈片状、弯片状及管束状；孔喉间以小孔细喉型组合方式为主；孔喉的相对细小是该区物性较差的主要原因。在聚类分析统计学方法的基础上优选出渗透率、门槛压力、中值半径、分选系数、最大进汞及退汞效率评价参数，并根据这些参数将研究区目的层的孔隙结构划分为三类。
운용주체박편、형광박편、소묘전경、X연사、압홍곡선등분석측시수단，대려가장유전고신통부저조이단저층공극결구특정진행료교위세치적연구。결과표명，부이단저층공극주요시이용식작용형성적소공위주；후도상대협소，이세후위주，정편상、만편상급관속상；공후간이소공세후형조합방식위주；공후적상대세소시해구물성교차적주요원인。재취류분석통계학방법적기출상우선출삼투솔、문함압력、중치반경、분선계수、최대진홍급퇴홍효솔평개삼수，병근거저사삼수장연구구목적층적공극결구화분위삼류。
By using casting slice, fluorescent flakes, scanning electron microscope, X-ray diffraction and pressure mercury curve, detailed researches were conducted on the pore structure characteristics of Paleocene Fu-2 member in Lvjiazhuang oilfield. The re-sults showed that Fu-2 reservoir pores were mainly the small holes formed by dissolution force;throats were relatively small with mainly thin throats, which took the shape of flaky, curved sheet and bundle-like;pores and throats were combined with small holes and thin throats;the relatively small pores and throats were the main reasons for poor physical properties in this area. Based on the statistics of cluster analysis, this paper optimized the following evaluation parameters such as permeability, threshold pressure, me-dian radius, sorting coefficient, maximum efficiency of mercury injection and mercury retreat. According to these parameters, the pore structure of target layer in research area was divided into three categories.