Evaluating the Impact of the Development of the Chayanda Fieldon Surface Ground Subsidence

Zhukov, V.S.; Kuzmin, D.K.

Авторы: Zhukov V.S., Kuzmin D.K.
Журнал: Izvestiya - Atmospheric and Oceanic Physics
Том: 59
Номер: 7
Год издания: 2023
Издательство: Pleiades Publishing, Ltd
Местоположение издательства: Road Town, United Kingdom
Первая страница: 827
Последняя страница: 237
Оригинальные версии: ОЦЕНКА ВЛИЯНИЯ РАЗРАБОТКИ ЧАЯНДИНСКОГО МЕСТОРОЖДЕНИЯ НА ПРОСАДКИ ЗЕМНОЙ ПОВЕРХНОСТИ
DOI: 10.1134/S000143382307006X
Аннотация: Abstract. In this paper we present the results of studies of the Botuobin, Talakh, and Khamakin reservoirs ofthe Vendian period in the Chayanda hydrocarbon field (Eastern Siberia). Based on an analysis of variationsin the petrophysical parameters of reservoirs upon an increase in effective pressure from 37 to 57 MPa, i.e.,under conditions simulating the development of a field for depletion, changes in the volume and compressibilityof the pore space are estimated. In this case, the porosity coefficient decreases by 0.043 abs. %, whilethe compressibility of the pore space decreases by 0.228 1/GPa. The average volumetric compression strainincreases by 0.096%, which means a reduction in the volume of developed reservoirs by almost 0.1% relativeto the beginning of development. A deformable formation model developed by Yu.O. Kuzmin based on thegeodynamic history of the development of deposits is applied to estimate the magnitude of possible subsidenceof the ground surface during development. The maximal values of possible surface subsidence (drawdowns)upon a decrease in reservoir fluid pressure by 5 MPa are estimated to be 0.33 m with allowance forthe dynamics of petrophysical parameters and 0.335 m with no allowance for it. The maximal drawdowns arealready estimated at 0.60 and 0.65 m upon a decrease in reservoir pressure by 10 MPa and 0.78 and 0.83 mupon a complete depletion of reservoir energy, respectively. The results of the studies show that taking intoaccount the changes in petrophysical characteristics caused by the field development processes alters the estimateof the deformation state of the rock massif and the ground surface above the deposit and, consequently,the estimate of the level of geodynamic risk of oil-and-gas complex objects.
Добавил в систему: Жуков Виталий Семенович

	ИСТИНА	Войти в систему Регистрация
	ФНКЦ РР
	Главная Поиск Статистика О проекте Помощь

ИСТИНА

ФНКЦ РР

Evaluating the Impact of the Development of the Chayanda Fieldon Surface Ground Subsidenceстатья

Прикрепленные файлы