摘要：With the basic characteristics of regular horizontal wells, the so-called complex wells including horizontal extended-reach wells, multi-branch horizontal wells, U-shaped wells, cluster horizontal wells, etc., are advanced well types for the efficient development of low-permeability, unconventional, deep-water, and deep oil and gas reservoirs, which have been highly concerned all over the world. Significant progress at home and abroad has been made in relevant researches and practices and is expected to play an important role in the efficient development of shale oil and gas. To meet the basic needs of environment & safety, land conservation, cost reducing and efficiency increasing, it is urgent to create a unique shale gas efficient development mode. Therefore, an efficient shale gas development mode for mountainous areas and an engineering technology support system are presented based on large cluster horizontal-well engineering. An equation is thus obtained for calculating the maximum number of horizontal wells arranged allowably in "well factory" on a single platform. The general research and development of large extended-reach well technology are analyzed by expounding the basic concept of a large extended-reach well and its drilling elongation limit. And a calculation method is thus established to predict the maximum measured depth of open hole in extended-reach drilling. Moreover, some relevant research results and their significance for downhole tubular mechanics & mechanical extending limits in extended-reach drilling are also briefly introduced in this paper. The conclusions are drawn that, by following the idea of "integration of geology and engineering" in oil and gas development, these research results have a foreseeable application prospect in shale gas development in the mountainous areas in the future, and will contribute to new progress in China's "Shale Revolution".
© 2018, Natural Gas Industry Journal Agency. All right reserved.

ISSN号：1000-0976

卷、期、页：v 38,n 8,p1-7

发表日期：2018-08-25

期刊分区（SCI为中科院分区）：无

收录情况：EI（工程索引）

发表期刊名称：Natural Gas Industry

第一作者：高德利

论文类型：期刊论文

论文概要：高德利，A high-efficiency development mode of shale gas reservoirs in mountainous areas based on large cluster horizontal well engineering，Natural Gas Industry，2018，v 38,n 8,p1-7

论文题目：A high-efficiency development mode of shale gas reservoirs in mountainous areas based on large cluster horizontal well engineering