【摘要】：裂縫型油田產(chǎn)量遞減的原因主要是裂縫引起的油井產(chǎn)水上升,合理有效的控制油井產(chǎn)水是提高裂縫儲(chǔ)層采收率的關(guān)鍵。王徐莊油田的主力開(kāi)發(fā)層系為生物灰?guī)r儲(chǔ)層,該儲(chǔ)層斷層裂縫發(fā)育,油井初期產(chǎn)能高,近水活躍,無(wú)水采油期短,在注水開(kāi)發(fā)過(guò)程中,注入水易沿裂縫及大孔道竄流,層內(nèi)、平面非均質(zhì)性嚴(yán)重,油井含水上升迅速,這大大降低了注入水波及體積和油田開(kāi)發(fā)效果。本論文從區(qū)塊特征出發(fā),結(jié)合溫度、礦化度以及封堵強(qiáng)度進(jìn)行了室內(nèi)研究及礦場(chǎng)試驗(yàn)研究,最終確定的復(fù)合堵劑體系能很好的作用于所選井。多功能復(fù)合凝膠體系注入地層中能迅速作用封堵裂縫及大孔道,地質(zhì)聚合物調(diào)驅(qū)劑的注入很好的增強(qiáng)了體系的強(qiáng)度,協(xié)同堵塞裂縫及高滲透層,使后續(xù)注入水繞流,驅(qū)替出儲(chǔ)層中未被波及到的剩余油,起到降水穩(wěn)油增油的目的,實(shí)現(xiàn)王徐莊油田裂縫性生物灰?guī)r油藏的高效開(kāi)發(fā)開(kāi)采。
[Abstract]:The main reason of production decline in fractured oil field is the increase of oil well water production caused by fracture. Reasonable and effective control of oil well water production is the key to improve fractured reservoir recovery. The main development layer of Wangxuzhuang oilfield is biolimestone reservoir. The fault fracture is developed, the initial productivity of oil well is high, the near water is active and the oil recovery period is short. During the process of water injection development, the injected water is easy to flow along the fracture and big pore channel, and inside the reservoir, The horizontal heterogeneity is serious, the water cut of oil well rises rapidly, which greatly reduces the injected water wave, volume and oilfield development effect. In this paper, based on the block characteristics, combined with temperature, salinity and plugging strength, laboratory research and field test study are carried out, the final determination of the compound plugging agent system can play a good role in the selected wells. The injection of multifunctional composite gel system into strata can rapidly block fractures and macroporous channels, and the injection of geopolymer flooding agent can enhance the strength of the system, block fractures and high permeability layers in cooperation, and make subsequent injection water flow around the formation. The remaining oil in the reservoir has not been affected by flooding, which has the purpose of stabilizing oil and increasing oil by precipitation and realizing the high efficiency development and production of fractured biolimestone reservoir in Wangxuzhuang Oilfield.
【學(xué)位授予單位】：西安石油大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TE357.6

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本文編號(hào)：2241367