drill bit Articles

  • Drill King International is exploring reverse-circulation drilling opportunities in Chile

    The new XT RC50 hammer from Drill King International completed drilling trials at the beginning of August 2016. This 5in (127mm) reverse-circulation (RC) hammer is the first one from the XT (Extreme Torque) series, introduced by the down-the-hole (DTH) drilling equipment manufacturer from Texas, US. The XT RC hammer series will complement Drill King's extensive line of DTH air- and water-powered ...

  • Solids Control for Drilling Mud Process System

    Nowadays, more and more drilling contractors recognize solids control’s importance to oil and gas drilling, HDD, CSM/CBM exploration, etc. How does solid control affect well drilling? Please find the following details. Cost Comparison of Two Oil Well Drilling Let’s find the difference of two kinds of oil well drilling with and without solids control system. Final effect or result is ...


  • Acoustic fingerprinting for rock identification during drilling

    During the process of mining, it is imperative to know the type and properties of the rocks being handled. The current technology for this involves core drilling, and subsequently subjecting the drilled cores to various tests in the laboratory, to identify the rocks and establish their properties. In many cases, obtaining a sample may be cumbersome and/or non–profitable. This paper presents a ...


    By Inderscience Publishers

  • Thermal stress on bottom hole rock of gas drilling

    Gas drilling has higher penetration than mud drilling. The greatest reason for this phenomenon with gas is that the gas is greatly cooled by expansion as it passes through the bit and thereby cools the bottom of the hole. The thermal stress at bottom–hole occurs during this process. The concept of thermal crushing of rocks is analysed in this study. The theoretical methods are developed to ...


    By Inderscience Publishers

  • Portable Remotely Operated Drill (PROD): Hydrocarbon Sensing System

    Proven Technology Benthic’s prototype Hydrocarbon Sensing System (HSS) analyses drill returns for the presence of hydrocarbons as they pass through PROD before being vented on the seafloor. The System, in its present form, includes two hydrocarbon sensors in line with the drill returns path. Drill returns, composed of seawater drawn from above PROD and pumped down the drill ...


    By Franatech GmbH

  • Directional drill resale values and how to get the most for your rig

    Wide resale value disparity among brands There’s a lot to consider when purchasing or leasing a horizontal directional drill — features, durability, support, training and overall value. But one area often overlooked is the potential resale value of the unit. Too often contractors will overlook the potential value of the machine after its useful life in their ...


    By Vermeer

  • Case Study - GTD’s new EW4 PDC Cutters Deliver Excellent Results in East Siberian Oilfield Drilling.

    Drill Bit: 8.5” diameter, vertical bit. | PDC Cutters: GTD EW4 R1313 mm | Location: East Siberia | Results: 1,438 meters depth, ROP range 23-25 m/hr | Following significant investment in research and development, GTD have manufactured a new grade of PDC cutter, EW4, with exceptional abrasion resistant and toughness. GTD EW4 has a significant comparative ...

  • A new approach for estimation of properties of metamorphic rocks

    Rock properties play an important role in the preliminary design of structures. This research focuses on developing empirical models using multiple regression technique for prediction of physical properties of metamorphic rocks. The model considers the following parameters: drill bit diameter, bit speed, penetration rate and equivalent sound level produced during drilling. The F-test was used to ...


    By Inderscience Publishers

  • Common challenges relative to the use of Decanter Centrifuges for barite recovery in the oil & gas industry

    When centrifuges are properly deployed, they can have dramatic effects on drilling performance. In fact, without them, many of the advances made in drilling would not have been considered achievable. Classically, we believe that centrifuges can achieve two common goals: Reduce the content of drilled fines, specifically colloidal solids, and Perform barite recovery in order to reduce ...


    By Elgin Separation Solutions

  • Detection of polychlorinated biphenyls (PCBs) in concrete using the dtech test system

    MATRIX: Concrete ANALYTES: Polychlorinated biphenyls (PCBs) RANGE OF DETECTION: DTECHTOR: 500 ppb to 25 ppm (as aroclor 1254). Color Card: 1 ppm to 25 ppm (as aroclor 1254) MATERIALS: DTECH PCB Test Kit. DTECH PCB Sample Extraction Kit. Reagents: table salt (sodium chloride) or salt packets used by restaurants ...


  • Detection of polychlorinated biphenyls (PCBS) in concrete

    MATRIX: Concrete ANALYTES: Polychlorinated biphenyls (PCBs) RANGE OF DETECTION: 500 ppb to 10 ppm MATERIALS: SDI PCB RaPID Assay® Kit. SDI RaPID Prep® PCB Sample Extraction Kit. SDI RaPID Prep Soil Collection Kit. Reagents: table salt (sodium chloride) or salt packets used by restaurants (e.g. Dixie ...


  • Detection of polychlorinated biphenyls (PCBs) in concrete using the ensys test system

    MATRIX: Concrete ANALYTES: Polychlorinated biphenyls (PCBs) RANGE OF DETECTION: Aroclor 1254: 0.5 ppm Aroclor 1260: 0.5 ppm Aroclor 1248: 1.0 ppm Aroclor 1242: 2.0 ppm Aroclor 1232: 4.0 ppm Aroclor 1016: 4.0 ppm MATERIALS: Ensys PCB in Soil Test Kit. Ensys PCB Sample Extraction Kit. Reagents: table salt ...


  • Arsenic wood field testing kit

    Now available from Industrial Test Systems, Inc. is a quick, easy, field test kit that can confirm the presence of inorganic arsenic in wood. Arsenic Quick™ 481396-W kit is a modification of the US Patented, ETV Verified arsenic test for drinking water. This 10 minute test readily confirms the absence or presence of arsenic in any wood sample, including CCA treated lumber using safe ...

  • DTI installs 3 blind horizontal remediation wells in cobble

    The Issue An active retail gas station next to a wetland area has benzene and trimethylbenzene plumes in a water table aquifer containing sand, gravel and cobbles. Rock fragments and boulders several feet in diameter lie in the vadose zone, between the ground surface and the water table. Business at the gas station would slow down or stop for an extended period of time if a vertical ...

  • Pumps for new housing in Stockholm

    Grindex new series of dewatering pumps are designed to last three times longer in abrasive applications compared to previous pump generations. In this case study from Sweden, they are up for a tough test. One of the critical factors for the building of 3,000 new homes within a few years are the seven submersible dewatering pumps from Grindex installed deep in the bedrock below south Stockholm. ...


    By Grindex Pumps

  • Reaching underground resources

    Accessing critical resources such as geothermal energy and natural gas requires drilling — an expensive, energy-intensive, messy process with today's technology. An MIT team has been looking into a more elegant approach. Instead of grinding rock to bits, they would use a continuous beam of energy to vaporize it and then blow out the tiny particles that form with a high-pressure stream of ...

  • Detection of PCBs in wood

    MATRIX: Wood, reduced to fine shavings or sawdust ANALYTE: Polychlorinated biphenyls (PCB) LIMIT OF DETECTION: 2 ppm as Aroclor 1260 MATERIALS: PCB EnSys 12T Soil Test System, Equipment: Tools for reducing wood to fine particles (refer to sample treatment section below). SAMPLE ...


  • Plant Profile - Warrenton Wastewater Treatment Plant Sequential Batch Reactor

    The Warrenton (Ore.) Wastewater Treatment Plant is brand new. In fact, it initiated full operation Jan. 2, although the plant has been utilized since June 28, 2006. The sequencing batch reactor (SBR) plant was constructed on top of an existing facultative sewer lagoon site. The site conditions prohibited deep excavations, so the three basins for the SBRs are shallow, at only 12.5 ft (3.8 m), with ...


  • Backreaming through rock — with AXIS Guided Boring System

    Taking on a challenge is nothing out of the ordinary for the experienced trenchless installation experts at Midwest Mole. Since its founding in 1982, the Indianapolis-based contactor has earned a reputation for installation innovation; overcoming obstacles and defying the odds. So, these trenchless pros didn’t hesitate to take on another challenge despite the recognition that they would ...


    By Vermeer

  • New advances in planning a bore

    Software helps take out the guesswork Horizontal directional drilling (HDD) is challenging and difficult work fraught with unknown obstacles. While it’s not possible to eliminate every obstacle, bore planning software tools developed by drill manufacturers can help small and large contractors create a bore plan that may help minimize risks. Bore planning software was ...


    By Vermeer

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