An Introduction to Real-time MWD/LWD Technologies for Geo-steering Driling:Based Mainly on Schlumberger’s Tools

Bitnarae Kim; Seo Young Song; Sung Oh Cho; Myung Jin Nam

doi:10.12972/ksmer.2018.55.1.049

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2018 Vol.55, Issue 1 Preview Page Next Page

Technical Report

An Introduction to Real-time MWD/LWD Technologies for Geo-steering Driling:Based Mainly on Schlumberger’s Tools 방향제어 시추를 위한 실시간 시추중 측정 및 검층 기술 소개: Schlumberger 장비를 중심으로

28 February 2018. pp. 49-66

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Abstract

Measurement while drilling (MWD) and logging while drilling (LWD), the techniques of informing drilling situation in real-time, have made progress in effective and accurate drilling. Geo-steering drilling techniques have been further developed to maximize the production of not only unconventional but also conventional hydrocarbon reservoir. With the advance in techniques, telemetry systems in particular, classification between MWD and LWD becomes more ambiguous. This paper discusses the historical trends of technical developments of LWD after explaining the concept and important factor techniques of MWD. For description of current technology of LWD, we summarized not only LWD services of Schlumberger, a world leasing company in MWD/LWD serivces but also their case studies. Further, we introduce measurements at the bit, which have been developed to minimize the problem caused by time lag or distance between the drill bit and MWD/LWD sensors.

Keywords

Measurement while drilling (MWD)

Logging while drilling (LWD)

Measurements at the bit

비전통 에너지자원 개발뿐만 아니라 전통적 저류층의 생산량을 극대화하기 위해 방향제어 시추(geo-steering drilling) 기술이 발전하면서 효율적이고도 더 정확한 시추를 위해 실시간으로 시추 상황을 알려주는 시추중 측정(measurement while drilling) 및 시추중 검층(logging while drilling) 기술이 함께 발전하였다. 데이터 송신 시스템이 발달함에 따라 시추중 측정과 시추중 검층의 분류가 모호해지고 있어 뚜렷이 구분하기가 어려워지고 있다. 이 기술보고 논문에서는 먼저 시추중 측정의 개념과 핵심 요소 기술에 대해서 간략히 살펴본 뒤, 시추중 검층의 발전 추이를 살펴보고 현재 기술 현황을 소개한다는 견지에서 물리검층 서비스에 있어 국제적으로 대표적인 회사인 Schlumberger 사의 기술 현황과 이를 적용한 해외사례를 설명한다. 추가적으로 시추중 측정과 시추중 검층가 시추 비트와 떨어져 있어 발생하는 시간 및 거리 지연을 최소화 하기 위해 개발된 비트에서 측정(Measurements at the bit) 기술에 대해서 소개한다.

키워드

시추중 측정

시추중 검층

비트에서 측정

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Information

Publisher :The Korean Society of Mineral and Energy Resources Engineers
Publisher(Ko) :한국자원공학회
Journal Title :Journal of the Korean Society of Mineral and Energy Resources Engineers
Journal Title(Ko) :한국자원공학회지
Volume : 55
No :1
Pages :49-66
Received Date : 2017-11-29
Revised Date : 2018-02-23
Accepted Date : 2018-02-23
DOI :https://doi.org/10.12972/ksmer.2018.55.1.049

Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

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