Application of High Temperature Resisting sureshot-MWD in Xinggu 7 Block
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摘要: 随着油田开发难度加大,高温高压深井、超深井也越来越多,普通随钻测量仪在高温高压环境下发生故障的概率很高,无法正常工作和保证测试的准确性、连续性。为了解决这个问题,引进了抗高温sureshot-MWD测量仪。该仪器设计工作温度可达175 ℃,由无刷电机正脉冲发生器、电池和探管组成,具有抗高温、设置灵活和可扩展的特点;仪器独特的旋转阀结构具有自动解卡功能,能够在含砂量3%的钻井液中正常工作。现场应用表明,抗高温sureshot-MWD在高温环境下工作正常,扩展成的LWD可以进行精确的地质导向,缩短了钻井周期,提高了油层钻遇率。
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关键词:
- 水平井 /
- 抗高温 /
- 地质导向 /
- sureshot-MWD
Abstract: With the increasing of oilfield development difficulty,more and more high-temperature high-pressure (HTHP) deep wells and super-deep wells are being drilled.Common measurement while drilling (MWD) has high failure rate in HTHP environment,so it can not ensure the accuracy and continuity of measurement.In order to solve this problem,high temperature resisting sureshot-MWD is introduced.This measurement is designed to resist high temperature up to 175 ℃ and it is composed of brushless motor positive pulse generator,battery and probe.It features high temperature resistance,flexible setup and expandability.The unique rotary valve of sureshot-MWD has the function of automatic unfreezing and it can work normally in the intervals with sand content 3%.In field application,sureshot-MWD works normally in drilling high temperature intervals,the expanded LWD could realize accurate geo steering,which shortens drilling period and increases reservoir targeting ratio.-
Keywords:
- horizontal well /
- high temperature resistance /
- geo-steering /
- sureshot-MWD
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