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In response to the difficulty of measuring fluid pH values in high-acidity, high-pressure, hightemperature, and complex ion environments, this paper proposes a predictive model for in-situ pH values in high-acidity environments. The model considers the influences of eleven factors, including ORP potential, temperature, and pressure, and is capable of calculating the pH value of fluids incorporating the following factors: pressure, temperature, Na+ ion concentration, K+ ion concentration, Ca2+ ion concentration, Mg2+ ion concentration, Cl- ion concentration, HCO3- ion concentration, H2S concentration, CO2 concentration, and ORP potential. Furthermore, the model is optimized to possess variable adaptability, allowing compatibility with cases involving fewer than eleven influencing factors. Test results demonstrate that the predictive model for in-situ pH values in high-acidity environments exhibits high precision, with a maximum prediction error of 6.32%, a minimum of 1.19%, and an average prediction error of 4%. Compared to other existing models, it considers a more comprehensive set of factors, providing a mathematical approach to pH prediction that holds significance for corrosion control in oil and gas pipeline industries.

Pulmonary hypertension is a chronic pulmonary vascular disease. In recent years, quite a number of studies suggest that the increase of pulmonary artery pressure is the result of multiple factors. A better understanding of the related factors is of great significance to the prevention, diagnosis, treatment and prognosis of pulmonary hypertension. Based on this, this paper studies the genetic immunity and environmental induced pulmonary hypertension. In this paper, 60 patients with pulmonary hypertension in our hospital from January 2020 to the first half of July 2020 were selected as the research objects. According to the pathogenic factors, the patients were divided into groups. Among them, pulmonary hypertension caused by genetic factors was group A, and pulmonary hypertension caused by environmental factors was group B. This study found that the incidence rate of family genetic history reached 6%, and the proportion of diseases caused by immune factors accounted for 2%. Because of the high altitude hypoxia environment, about 5% accounted for 5%. Smoking is the main factor leading to the morbidity of pulmonary hypertension, accounting for up to 70%. The results of this study provide theoretical basis for the treatment of pulmonary hypertension caused by genetic immunity and environment.