PROTOTYPE ALAT PEMETAAN KONTUR TANAH PADA TAHAP OPEN HOLE

Budi, Akhmad Nur Wakhid Setya and Wardhana, Paulus Susetyo and Alasiry, Ali Husein (2010) PROTOTYPE ALAT PEMETAAN KONTUR TANAH PADA TAHAP OPEN HOLE. EEPIS Final Project.

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Abstract

Petroleum is a lot of mineral resources found in the foundations of the earth. To get the oil drilling process requires. Where in the drilling process, there are several phases: open hole and close hole. Stage open hole is drilled to create holes and then measured in three-dimensional shape of land. While the stage is a process in which close-hole drilling wells that have been made coated with concrete or cementingknown. Open hole at this stage, this system detects the contour of the land on the oil drilling process using 40 KHz ultrasonic sensors as well as facilities of the microcontroller as the main controller circuit. In principle, this system will emit ultrasonic sensor ultrasonic waves to the walls of wells (boreholes) and reflected back. To display a three-dimensional land forms the y-axis is assumed as the depth of the wells, the z-axis represents the value of the reflection of ultrasonic sensor, the x-axis radius of the rotating sensor. Data from ultrasonic scanning is still the form of data pulses are converted into distance data. Distance data is then sent to a computer via serial communications and will be processed for display in the form of three-dimensional image his system can detect the contours of a layer of soil. Ultrasonic sensor which used to have accuracy in the horizontal plane at 1%. Soil layer has detected an error rate of 11% of the actual soil.. Kata kunci : Ultrasonic, open hole, contours of land, rotary encoder, microcontroller

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