rock compressive strength

  • Estimation of Rock Compressive Strength Using Downhole Weight ...

    Abstract. In unconventional gas and tight oil plays, knowledge of the in situ rock mechanical profiles of the reservoir interval is critical in planning horizontal well...

  • CHAPTER TWO CHARACTERISTICS OF SOFT ROCKS

    CHARACTERISTICS OF SOFT ROCKS. 2-1 am. The unidirectional compressive strength of a rock is usually assessed by testing a small sample to destruction.

  • Lab Services, Rock Testing | GeoTesting Express - Geocomp

    Standard Test Method for Triaxial Compressive Strength of Undrained Rock Core Specimens Without Pore Pressure Measurements **ASTM has discontinued...

  • Estimating rock compressive strength from Rock Abrasion Tool (RAT ...

    7 Jun 2013 ... Estimating rock compressive strength from Rock Abrasion Tool (RAT) grinds. B. J. Thomson1,*,; N. T. Bridges2,; J. Cohen3,; J. A. Hurowitz4,...

  • Patente US4914591 - Method of determining rock compressive ...

    A method is disclosed for determining rock compressive strength of a subterranean formation penetrated by a wellbore. A mathematical model of a drill bit and...

  • Compressive strength of rocks - - PetroWiki

    10 Nov 2014 ... While many methods for calculating failure relationships exist, an initial measure of the compressive strength of reservoir rocks is still needed...

  • Physical Property Measurements

    7 Jan 2015 ... UCS is one of the most basic parameters of rock strength, and the ... The unconfined compressive strength of the specimen is calculated by...

  • Practical estimates of rock mass strength

    s and a are constants which depend upon the characteristics of the rock mass, and σ ci is the uniaxial compressive strength of the intact rock pieces. It is possible...

  • compressive strength of rock_compressive ... -

    . ;; . . : 1; · · sweetpotato? . . . <>. 1.

  • Uniaxial compression tests - SP

    ISRM 1979, Suggested methods for determining the uniaxial compressive strength and deformability of rock materials. Int J Rock Mech Min Sci Geomech Abs...

  • Basic Rock Mechanics

    A. Engineering Uses: Rock is used for engineering purposes in 2 primary ways: .... 'Compressive strength' is the maximum force that can be applied to a rock...

  • ASTM D7012 - 14 Standard Test Methods for Compressive Strength ...

    Standard Test Methods for Compressive Strength and Elastic Moduli of Intact Rock Core Specimens under Varying States of Stress and Temperatures.

  • Relationship among fatigue strength, mean grain size and ... - Springer

    Since the mean uniaxial compressive strength also varied with varying grain size, ... of a rock also shows a converse relation with mean uniaxial compressive...

  • Estimating uniaxial compressive strength of rocks using genetic ...

    The aim of this paper is to estimate the uniaxial compressive strength (UCS) of rocks with different characteristics by using genetic expression programming (GE.

  • Landslides vs. Rock strength - Wikipedia, the free encyclopedia

    Rock strength is defined by stress/strain relationships, pore fluid pressure, and ... Also, shale tends to have a higher compressive strength than sandstone, so the...

  • crushing strength | geology | Encyclopedia Britannica

    Brittle materials such as rock, brick, cast iron, and concrete may exhibit great compressive strengths; but ultimately they fracture. The crushing strength of...

  • A discussion on the decrease of unconfined compressive strength ...

    1 INTRODUCTION. The unconfined compressive strength (UCS) is probably the most used of the rock index properties for their characterization. So all the...