本文關鍵詞：無固相高密度壓井液體系研究　出處：《東北石油大學》2015年碩士論文　論文類型：學位論文

  更多相關文章： 敏感性 滲透率 穩(wěn)定性 高溫高壓 儲層保護

【摘要】：隨著石油勘探技術日益壯大,在鉆完井工程壓井施工過程中會遇到不同復雜程度的儲層情況。針對不同的情況選取合理壓井液配方能有效的保護儲層,避免儲層受到二次傷害,從而保證穩(wěn)產(chǎn),因此通過對無固相或者低固相壓井液配制的研究非常重要。本文主要是通過對巖心進行敏感性實驗研究,其中包括速敏實驗、水敏實驗、鹽敏實驗、堿敏實驗以及酸敏實驗。通過五敏性實驗對儲層進行敏感性評價。經(jīng)過分析儲層敏感性情況進行了壓井液基液的篩選。通過對不同鹽水加重劑進行滲透率實驗,優(yōu)選出滿足條件的三種加重劑。由于壓井液體系外加劑對體系性能的影響巨大,隨后通過大量的實驗進行外加劑的優(yōu)選。其中包括粘土穩(wěn)定劑、氣層保護劑、增粘劑、降濾失劑以及緩蝕劑等。針對每一種添加劑分別在優(yōu)選出的三種基液中進行大量實驗和性能分析。優(yōu)選出在三種方案基液中最適合的添加劑。得出滿足條件的三種壓井液體系配方。通過在室內(nèi)實驗模擬儲層環(huán)境,進行配制好的壓井液性能的確定。通過高溫高壓時體系速度梯度和剪切力的關系確定了三種配方的流變性較好。壓井液體系濾失性、沉降穩(wěn)定性以及腐蝕性分別進行評價均達到儲層保護的要求。通過將配制好的三種壓井液配方室內(nèi)實驗評價后,可以發(fā)現(xiàn)三種方案壓井液體系有很好的穩(wěn)定性、抗腐蝕性和耐高溫性等。由此可見三種壓井液配方體系能滿足施工現(xiàn)場需要。
[Abstract]:With the development of oil exploration technology growing in drilling wells engineering construction process will encounter different complexity of the reservoir. According to different conditions of reasonable selection of fracturing fluid formula can effectively protect the reservoir, the reservoir is two times to avoid damage, so as to ensure the stable production, because of this the solid free or low solidkill fluid is very important. This paper is mainly through the experimental study of sensitivity to the core, including the speed sensitivity experiment, water sensitivity experiment, salt sensitivity test, alkali sensitivity and acid sensitivity experiment. Through the experiment of five sensitivity experiments on reservoir for sensitivity evaluation. After analysis of reservoir sensitivity were screened well killing fluid fluid permeability. Through the experiments on different saline increasing agent, optimized to meet the conditions of the three kinds of weighting agent. Due to the effect of fluid additives on the properties of the system, followed by a large number of The preferred experimental admixture. Including clay stabilizer, reservoir protection agent, tackifier, filtration reducing agent and inhibitor. For every kind of additives were a large number of experiments and performance analysis in three kinds of liquid selected. Select the most suitable additives in three schemes based in liquid three. Draw the fluid formula to meet the conditions of the reservoir. Through the simulation environment in the laboratory experiment, determine the performance of fracturing fluid prepared by high temperature and high pressure. The relationship between the system when the velocity gradient and shear stress to determine the rheological properties of three kinds of good. Well fluid filtration, sedimentation the stability and corrosion resistance were evaluated to reservoir protection requirements. Through the prepared three kinds of pressure fluid formulation of experimental evaluation, we found that three schemes of killing fluid system has good stability, corrosion resistance and resistance It can be seen that three kinds of well fluid formulation system can meet the needs of the construction site.

【學位授予單位】：東北石油大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TE25

【參考文獻】

相關期刊論文 前1條

1 張桂林;;清溪1井溢流壓井分析[J];石油鉆探技術;2009年06期

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本文編號：1387695