CAJ | 학술논문

针对长庆油田延长组低孔低渗砂岩以裂缝型储层发育为主的特点，开展了区域应力场模拟研究，用于预测延长组的裂缝发育情况，指导后续勘探开发井的部署。由于研究区无地震资料，因此基于地震的传统裂缝检测方法无法适用。本次研究主要采用了基于以弹性薄板理论为基础的应力场模拟技术，充分利用常规测井曲线携带的速度及密度信息，克服了无地震资料的技术瓶颈，结合野外露头及岩芯测量结果，认为研究成果较为可靠，取得了较好的效果。目前已钻高产井均位于本次预测的强应力发育区，因此应力场模拟结果可以作为下一步生产井位部署的主要依据，此种技术方法也可以推广到长庆油田其他区块。
침대장경유전연장조저공저삼사암이렬봉형저층발육위주적특점，개전료구역응력장모의연구，용우예측연장조적렬봉발육정황，지도후속감탐개발정적부서。유우연구구무지진자료，인차기우지진적전통렬봉검측방법무법괄용。본차연구주요채용료기우이탄성박판이론위기출적응력장모의기술，충분이용상규측정곡선휴대적속도급밀도신식，극복료무지진자료적기술병경，결합야외로두급암심측량결과，인위연구성과교위가고，취득료교호적효과。목전이찬고산정균위우본차예측적강응력발육구，인차응력장모의결과가이작위하일보생산정위부서적주요의거，차충기술방법야가이추엄도장경유전기타구괴。
The Yanchang Formation of Changqing Oilfield is characteristic of fractured reservoir with low porosity and low permeability sandstone,so we carried out the research on regional stress field simulation,in order to predict the fracture devel-opment of Yanchang Formation,which can guide the exploration and development in the future. Because there is no seismic data in the research area,so the conventional research ways of fracture prediction are not suitable in research area. This article, based on log curves,used the theory of elastic thin plate to simulate the stress field,and made use of the density and P-wave carried by original log curves. Meanwhile,the authors also did some research such as the field profile measurement and core observation etc. Comparing the analysis results through a variety of means,we think we have got the better result in this re-search. The existing high production wells are all located in the strong stress zones. The stress field simulation results can be the most important guidance for location of production well next. This technical method can also be extended to other blocks in Changqing Oilfield.