OIL AND GAS FIELDS IN ZHUNGEER BASIN AND THE PROBLEMS OF THEIR EXPLORATION IN THE NORTHWEST OF CHINA

Abstract

Zhungeer Basin is located in the province of Xinjiang in northwest China. It has an area of 130 km2. In tectonic terms, this trap is immersed in south-eastern direction. Zhungeer Basin is made by continental deposits from the Permian to Miocene age with a total capacity of 14 thousand meters Permian source rocks, represented by high carbon clay deposits, developed in the southern part of the basin. Oil has migrated over the surfaces of disagreements and accumulated in the lenses of sandstones and conglomerates in the sediments of the Carboniferous, Upper Permian, Middle and Upper Triassic, Upper Jurassic and Miocene (C, P2, T2-3, J3, N1). Within the Zhungeer Basin yet are identified 5 oil-bearing formations, which are dispersed in the Carboniferous and Permian sediments. Most common oil-bearing interval reaches 800-900 m. In 2008 was completed a drilling with a depth of 2010 m. When testing two-meter reservoir sandstones of Carboniferous age in the range of 605-698 m, we obtained 527 tons of oil and 1,200 m 3 of gas on the nozzle 5 mm. In addition, high viscous oil also was discovered. This paper discusses the geological and production characteristics of the main oil and gas fields of the Zhungeer basin. It was Investigated in detail the structural features, the history of the discovery and formation of hydrocarbons, dissemination and preservation of oil and gas deposits. To establish geological structures and Mesozoic thickness, which is possibly promising for oil and gas, research of the university within the state scientific and technical program Sustainable development of natural resources and modernization of oil and gas technologies (from 2012) and program of the University of Petroleum Energy program and the development of China (from 2010) is in process.