CAJ | 학술논문

根据对樊庄区块固县井区HG2—16等16口排采井产出流体化学监测结果，本文分析了各种化学参数的变化特点，对不同时刻产出气组分及同位素实验数据分析，甲烷碳同位素、氢同位素总体呈现“轻-重-轻”的变化规律，证实储层解吸具有阶段性特征，可能存在不同时刻气源变化和分馏特征；测试不同时刻产出水的PH值、离子浓度及元素含量变化动态，判别了监测区不同井开采地层水的来源，分析了流体化学参数动态变化规律，揭示了煤层气井网排采条件下流体场变化及井间干扰联系。
근거대번장구괴고현정구HG2—16등16구배채정산출류체화학감측결과，본문분석료각충화학삼수적변화특점，대불동시각산출기조분급동위소실험수거분석，갑완탄동위소、경동위소총체정현“경-중-경”적변화규률，증실저층해흡구유계단성특정，가능존재불동시각기원변화화분류특정；측시불동시각산출수적PH치、리자농도급원소함량변화동태，판별료감측구불동정개채지층수적래원，분석료류체화학삼수동태변화규률，게시료매층기정망배채조건하류체장변화급정간간우련계。
The paper made an analysis of the characteristics of change of various chemical parameters based on the monitored fluid chemical data of the yield from 16 production wells, like HG2-16 etc. in Guxian well district of Fanzhuang block. Analysis of the yield constituents at different time and the experiment data of isotopes showed that the general rule of change of δ13CcH4 and δDcH4 being ＂light-heavy-light＂, which proved that desorption of reservoir might be periodic; that there existed change of gas source at different time; and that they had fractional distillation characteristics. The authors judged the water sources of the worked seams of different wells within the monitored district by testing the pH value of water, ion concentration and dynamic change of element content at different time. They analyzed the rule of dynamic change of fluid chemical parameters, and disclosed the change of fluid field under the extraction conditions of CBM pattern and the relationship of well interference.