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在库车坳陷天然气勘探中,由于目的层段上覆膏盐岩厚度变化大、钻井液密度高使得在该区天然气勘探中卡取层位、发现气层十分困难。从天然气藏的高温异常成因、特征出发,根据目前库车坳陷预探井在钻井中普遍应用综合录井仪,能够对井底温度进行连续测量的生产技术条件,结合库车坳陷古近系—白垩系目的层段主要为高压天然气层的实际,充分利用气层温度异常高的特点,通过对地层温度的连续监测,对地层变化进行了及时、准确地预测,卡准了地层、发现了气层,解决了生产中的难题。
In the natural gas exploration in the Kuqa Depression, the gas layer is very difficult to find because of the large variation of salt thickness of overlying gypsum in the target interval and the high density of drilling fluid. Based on the causes and characteristics of high temperature anomalies in natural gas reservoirs, according to the pre-exploration wells in the Kuqa Depression, the comprehensive logging tools are generally used in drilling wells to continuously measure the bottom hole temperature, - The purpose of the Cretaceous target layer is mainly the reality of high pressure natural gas reservoirs. By making full use of the abnormally high gas temperature, the stratigraphic changes were accurately and accurately predicted through continuous monitoring of the formation temperature. Gas layer, to solve the production problems.