CAJ | 학술논문

泉65井区是一个多油层复合浅层油田,三叠系延长组长2,侏罗系延安组Y7、Y9均获得工业油流。三叠系延长组长2油层组,是泉65井区2010年开发的主力油层,属典型的低压、低渗、低温地层,这种油层浅、低压、低渗、低温的地质特性,决定了压裂增产为其主要的增产方式。三叠系长2油藏油水关系复杂、非均质性较强制约了水力压裂工艺的实施,油层改造是实现高效开采的关键。结合2010年与2006-2009年压裂工艺及施工参数及现场实验基础上进行系统性总结分析,提出了长2油层的压裂改造思路及模式,对于提高低渗透油藏开发具有重要作用。
천65정구시일개다유층복합천층유전,삼첩계연장조장2,주라계연안조Y7、Y9균획득공업유류。삼첩계연장조장2유층조,시천65정구2010년개발적주력유층,속전형적저압、저삼、저온지층,저충유층천、저압、저삼、저온적지질특성,결정료압렬증산위기주요적증산방식。삼첩계장2유장유수관계복잡、비균질성교강제약료수력압렬공예적실시,유층개조시실현고효개채적관건。결합2010년여2006-2009년압렬공예급시공삼수급현장실험기출상진행계통성총결분석,제출료장2유층적압렬개조사로급모식,대우제고저삼투유장개발구유중요작용。
The area of Quan 65 is a compound and shallow oil field with many reservoirs. The Chang 2 of Yanchang formation in Triassic and the Yah 7 and Yah 9 of Yan~n formation in Jurassic have been the commercial oil flow. The Chang 2 of Yanchang formation in Triassic is the main reservoir, developed in 2010, and is the typical low - pressure, low permeability and low temperature reservoir. These typical geological characteristics decide that the main method to increases the production is fracturing. The relationship between oil and water is complicated and the nonuniformity is severe, which are restricting for hydraulic fracturing in Chang 2 formation. Improving the reservoir is the key for efficient developing. Based on the fracturing technology in 2010, the construction parameter and the experiment in worksite, we advance the idea and the mode for fracturing in Chang 2 formation, which play an important role for developing low permeability oil.