CAJ | 학술논문

低渗透非均质油田受经济产量的限制，一般采用1套层系笼统合采。开发实践表明，层系内如层数太多，层间非均质性造成水驱动用状况极不均衡。多层合采合注开发效果较差，需要研究新的层系组合与划分方式，既能满足开发生产对层系细分的需要，又能使注采井距达到注水开发的要求。大港油田D断块属于低渗透非均质油田，油层多达49个，在准确认识油藏地质特征及开发特点的基础上，以经济效益为前提，采用“合采分注”技术，降低层内干扰，合理划分开发层系。
저삼투비균질유전수경제산량적한제，일반채용1투층계롱통합채。개발실천표명，층계내여층수태다，층간비균질성조성수구동용상황겁불균형。다층합채합주개발효과교차，수요연구신적층계조합여화분방식，기능만족개발생산대층계세분적수요，우능사주채정거체도주수개발적요구。대항유전D단괴속우저삼투비균질유전，유층다체49개，재준학인식유장지질특정급개발특점적기출상，이경제효익위전제，채용“합채분주”기술，강저층내간우，합리화분개발층계。
Low permeability and heterogeneous oil fields generally use commingled producing system, due to the production restrictions. The development practice indicated that if the number of layers in a series of strata development is too large, interlayer heterogeneity will lead to an extremely uneven oil displacement by water and poor commingled oil production and commingled water injection results. It is necessary to study new reservoir zonation methods to meet the needs of the development and production for sub-division of strata, and to enable the injection- production well spacing to meet the needs of water flooding development. Dagang oil field of D fault is a low- permeability and heterogeneous oil field with 49 oil layers. On the basis of accurately understanding of geologic features and development characteristics, taking the economic benefits as the first priority, we used the commingled production and layered water injection technology to lower the layer interference and develop series of strata reasonablely.