S型定向分枝孔监控预测数学模型

由于目前随钻监测技术还处于较低的水平，因此利用离散的测斜数据对钻进过程和钻进效果进行监控和预测，对于钻孔施工显得尤为重要．作者研究了Ｓ型走向分枝孔的施工控制措施，建立了Ｓ型定向分枝孔的监控预测数学模型，包括造斜段监控、中靶预测、跟踪设计，同时还研究了长孔段中靶预测数学模型．利用这些数学模型和微机可以对Ｓ型定向分枝孔的施工进行综合的、较准确的控制。所有这些对Ｌ型和更复杂的定向分枝孔的施工监控措施都很有意义．

MATHEMATICAL MODEL ABOUT INSPECTINGCONTROLLING AND PREDICTING S-TYPE DIRECTIONAL BRANCH HOLE

It is very important to inspect and predict drilling process and effect by scattered data about measuring hole deflection because of lower level in measurement while drilling at present.The authors investigate construction control of S-type directional branch hole and set up the mathematical models about inspecting,controlling and predicting it which contains inspection and control of deflecting hole section,hitting target prediction and following design.At the same time,the authors discussed and set up hitting target prediction mathematical model of long hole section.By these models and computer,comprehensive and accurate control is carried in constructing S-type directional branch hole.All these are very significant in constructing L-type and more complicated directional branch hole.