旋轉導向鉆井裝置
旋轉導向鉆井系統
發布時間:2015-04-09 09:16:30

       旋轉導向鉆井系統是當今石油鉆井工程領域最重要的前沿裝備之一,集機、電、液、信息和控制技術于一體,在近鉆頭端與MWD或LWD配合完成導向鉆井。是實現石油鉆井向數字化、信息化、自動化方向發展的核心技術和重大裝備,可廣泛應用于陸地和海洋環境下的超深井、水平井、大位移井、分支井等特殊鉆井工藝的導向作業。
       旋轉導向鉆井系統由發電系統、電力傳輸系統、機械系統、電動機、液壓系統、定位總成、測量系統等構成。在鉆井過程中,泥漿提供動力,帶動發電機發電,供給整個導向系統,主控板采集壓力、位移及地面上位機的信號進行數據分析處理,并向執行機構發送指令,電機泵液壓系統接受到指令后控制翼肋伸出或收回,分別在不同方向上對井壁施加作用力,通過三個支撐翼肋的控制,實現導向鉆進。

 

Rotary steerable drilling system 

Rotary steerable drilling system is one of the most important equipment in oil drilling field now, and it is a combination of mechanical, electrical, hydraulic, information and control technologies. It can execute steerable drilling with the help of MWD or LWD at the near-bit end. This equipment is the core technique and crucial to realize the digitization, informatization, automation of the oil drilling, and it is widely used for the steerable drilling of ground and offshore wells such as ultra-deep wells, horizontal wells, extended reach wells, and branch wells, etc.
Rotary steerable drilling system consists of various subsystems including power generation, power transmission, mechanical, motor, hydraulic, positioning and measurement. During drilling, the drilling mud well supply the generator the power for generating electricity to the whole steerable drilling system. The control pad collects pressure, deviation and signals from the ground for data analysis, and sends instructions to the actuator. After receiving the instructions, the hydraulic system of the motor pump will control the extension and drawback movement of the steerable ribs, then the well wall is forced from different directions, and the steerable drilling is realized via the control of the three steerable ribs.

 

 

 

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