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In their letter to EHP, Huff et al. (1) maintained that arsenic is still viewed as "a paradoxical carcinogen; that is, carcinogenic to humans but not to laboratory animals," and that this paradox will be believed until car-cinogenicity of arsenic is demonstrated in animal experiments such as "long-term inhalation studies using arsenic trioxide." Huff et al. (1) seem not to take into considerati...

In view of the deterioration oil well liquid supply capacity and increase effect after multiple rounds carbon dioxide (CO2) huff puff, according to actual conditions Ng12 reservoir in XA oilfield, an indoor physical simulation experimental model was established. The parameters were determined, five CO2 puff experiments carried out, crude produced water flooding stage different collected. effect...

یکی از پارامترهای مهم محیط­های پخش نوترون، طول نوترون حرارتی است. روش مرسوم محاسباتی استفاده کد MCNP برمبنای توزیع شار در محیط و برازش تابع ریاضی مربوطه بر آن این پژوهش، روشی نوین که مبنای کارت PTRAC است، ارایه شده پارامتر برای آب­سبک اساس روش­های فوق محاسبه با مقادیر گزارش مراجع مقایسه گردیده تطابق خوبی نیز مشاهده حسن فوق، عدم نیاز به علاوه فرض می­شود تا محل چشمه، فاصله­ی کافی وجود دارد. مسأله...

With the gradual declining of oil increment performance CO2 huff-and-puff wells, overall exchange rate shows a downward tendency. In this regard, synergistic technologies have been proposed to maintain excellent effect and extend technical life such wells. However, there is no specific research on mechanism mode huff puff in horizontal This study aims establish determine adaptability acting puf...

Duvernay shale is a world class deposit with total resource of 440 billion barrels oil equivalent in the Western Canada Sedimentary Basin (WCSB). The volatile recovery factors achieved from primary production are much lower than those gas-condensate window, typically 5–10% original place (OOIP). previous study has indicated that huff-n-puff gas injection one most promising enhanced (EOR) method...