The goal of this book is to address a range of topics that affect the recovery of hydrocarbons from extremely low-permeability unconventional oil and gas reservoirs. While there are various definitions of unconventional reservoirs, in this book we consider oil- and gas-bearing formations with permeabilities so low that economically meaningful production can only be realized through horizontal drilling and multi-stage hydraulic fracturing. These reservoirs have permeabilities measured in nanodarcies, not millidarcies – in other words, a million times lower than conventional reservoirs. Despite their ultra-low permeability, there is no question about the scale and impact of production from unconventional oil and reservoirs in the US and Canada over the past decade. <...>

Rock is the main constituent of the crust of the Earth, and its behavior is the most complex one among all materials in the geosphere to be dealt with by humankind. Furthermore, it contains various discontinuities, which make the thermo-hydro-mechanical behavior of rocks more complex. These simply require a higher level of knowledge and intelligence within the Rock Mechanics and Rock Engineering (RMRE) community.

В учебном пособии для специальности 0202 «Технология и комплексная механизация подземной разработки месторождении полезных ископаемых» на основании теоретических работ и практических разработок авторов, а также опубликованных материалов других исследователей изложены научные основы дисциплины «Механика горных пород», приведены расчеты крени и конструктивных элементов систем разработки рудных месторождений подземным способом

Each of the following pages contains a protractor for a specific size of drill core. 

Choose the appropriate chart for the drill core size. Check the core diameter to choose the appropriate template within each core size grouping.

The protractors are in two groups: beta angle protractors and alpha/beta angle protractors. In practice I find that the beta angle protractor alone is best as it is least cluttered with lines (and alpha angles are easily measured using a protractor). <...>

• Drill core measurement procedures

• Geometrical relationships

• Using GeoCalculator to solve the geometry

• Manual stereographic plotting procedures

• Introduction to HCA wrap-around beta angle protractor templates

This book deals with the theories and methodologies used by engineers for the analysis and design of the main geotechnical structures.

The word structures is used here with a clear intention: indeed, the book adopts a structural outlook, inspired by the approach of the Structural Eurocodes and similar documents based on the Limit State Design philosophy.

A Short Course in Geotechnical Site Investigation is based on University of Surrey short courses. These courses were designed not only to familiarize students with the practicalities of geotechnical engineering but also to refresh the knowledge of practising engineering geologists and civil and structural engineers.

Application of earth sciences to the solution of civil engineering problems, or geotechnics, constitutes the subject of this book. The point of view is that of the engineer, and the earth sciences, particularly geology, have been brought into the engineering pattern only when they have direct bearing upon the problems under discussion. The authors goal is to present only those basic geotechnical principles that can provide a solid basis for the solution of problems connected with the natural environment of an engineering structure, particularly the surrounding ground. Case histories have been used only for the elucidation of principles. <...>

В книге рассмотрен весь комплекс вопросов, связанных с производством буровзрывных работ на горнодобывающих предприятиях. Приведены физико-механические свойства горных пород и их классификация; изложена физическая сущность процесса разрушения горных пород; описаны способы бурения и буровое оборудование. Даны основы теории взрывчатых веществ, описаны новейшие ВВ и средства взрывания, приведены правила обращения, хранения и перевозки взрывчатых материалов.

Инженерно-геологическо е обоснование выбора месторасположения ответственных сооружений (плотины, горно-добывающи е предприятия , порталы тоннелей, мосты, крупные городс к ие здани я и т.п.) в пределах высоких оползневых и обвальных склонов сложного гео логического строения, а также разработка проектов и осуществление укрепительных мероприятий требуют приближенно количественной оценки степени как обшей устойчивости склонов, так и отдельных частей.