Method for predicting exploitation site of unconventional resources applied to sequence stratigraphic analysis

• Main Authors: RHEE, CHUL WOO, WOO, JU HWAN, KIM, JI SOO
• Format: Patent
• Language: English; Korean
• Published: 02.11.2017
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; DETECTING MASSES OR OBJECTS; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; MEASUREMENT OF NUCLEAR OR X-RADIATION; MEASURING; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR; TESTING

The present invention provides a method for effectively predicting an exploitation site of shale gas. According to the present invention, the method for predicting an exploitation site of shale gas comprises the following steps of: (S1) analyzing the total gamma ray (GR) in each depth in a drilling hole; (S2) analyzing a spectral gamma ray (SGR) of U, Th, and K elements in each depth in a drilling core; (S3) measuring and predicting the total organic carbon content (TOC) in each depth in the drilling core; and (S4) calculating acoustic impedance (AI) in the frilling hole. 본 발명은 효과적으로 셰일가스 개발 구간을 예측하는 방법을 제공하는 것으로, 본 발명의 셰일가스 개발 구간 예측방법은 (S1) 시추공 내에 깊이별로 총 감마레이(GR)를 분석하는 단계;(S2) 시추코어 내에 깊이별로 U, Th 및 K 원소의 스펙트럴 감마 레이(SGR)를 분석하는 단계; (S3) 시추코어 내에 깊이별로 총 유기탄소 함량(TOC)을 측정 및 예측하는 단계; 및 (S4) 시추공 내에 음향 임피던스(AI)를 산출하는 단계;를 포함한다.