库台盆地Sanga Sanga作区Y井Z油田井眼稳定性一维地质力学模型

Navrianta Tappi, J. R. Cherdasa
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摘要

本文研究了库台盆地Sanga Sanga作区Z油田Y井井筒稳定性的一维地质力学模型。本研究的目的是分析井的稳定性,从了解发生的应力状态开始,预测井筒破坏的发生,并确定下一次钻井的安全泥浆比重窗口。本研究中使用的方法是利用测井数据和钻井数据进行数值模拟,然后使用Techlog软件进行管理。研究结果表明,得到的岩石力学性质的大小表明,即使在一定深度上引入走滑和逆滑,Z田地层的应力状态总体上为正常状态,然后根据该井的破坏预测结果为宽突破,一般发生在含砂岩岩性中,最后可以适当地估计出安全泥浆比重窗口。这样它就可以用于进一步的钻井。本文研究了库台盆地Sanga Sanga作区Z油田Y井井筒稳定性的一维地质力学模型。本研究的目的是从了解地层的力学特性值、发生的应力状态、预测井筒破坏的发生、确定下一次钻井的安全泥浆比重窗口开始分析井的稳定性。本研究中使用的方法是利用测井数据和钻井数据进行数值模拟,然后使用Techlog软件进行管理。研究结果表明,得到的岩石力学性质的大小表明,即使在一定深度上引入走滑和逆滑,Z田地层的应力状态总体上为正常状态,然后根据该井的破坏预测结果为宽突破,一般发生在含砂岩岩性中,最后可以适当地估计出安全泥浆比重窗口。这样它就可以用于进一步的钻井。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
1D Geomechanical Model For Wellbore Stability in Z Field, Y Well Sanga Sanga Working Area, Kutai Basin
This research is about 1D geomechanical model for wellbore stability in Z Field, Y Well Sanga Sanga Working Area, Kutai Basin where wells have been drilled. The Purpose of this Research is to analyze the stability of the well starting from knowing the stress regime that occurs, predicting the occurrence of wellbore failure, and determining safe mud weight window for next drilling. The method use in this Research is a numerical modelling method using log data and drilling data that has been obtained and then managed using Techlog Software. The result of this Research show the magnitude of mechanical properties of the rock that have been obtained, then in general the stress regime that occurs in the Z Field formation is the normal regime even though the strike slip and reverse regime are inserted at a certain depth, then based on the prediction results of failure in this well is wide breakout, which in general occurs in lithology with sandstone, finaly safe mud weight window can be estimated properly, so that it can be used for further well drilling. This research is about 1D geomechanical model for wellbore stability in Z Field, Y Well Sanga Sanga Working Area, Kutai Basin where wells have been drilled. The Purpose of this Research is to analyze the stability of the well starting from knowing the value of the mechanical properties of the formation, the stress regime that occurs, predicting the occurrence of wellbore failure, and determining safe mud weight window for next drilling. The method use in this Research is a numerical modelling method using log data and drilling data that has been obtained and then managed using Techlog Software. The result of this Research show the magnitude of mechanical properties of the rock that have been obtained, then in general the stress regime that occurs in the Z Field formation is the normal regime even though the strike slip and reverse regime are inserted at a certain depth, then based on the prediction results of failure in this well is wide breakout, which in general occurs in lithology with sandstone, finaly safe mud weight window can be estimated properly, so that it can be used for further well drilling.
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