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Mud news and technical articles from Oil & Gas Journal. Search Mud latest and archived news and articles

  1. Mud -pulse telemetry sees step-change improvement with oscillating shear valves

    Magazine Articles

    Mon, 23 Jun 2008

    After 30 years of refinements, mud -pulse systems transmit data more quickly ..... information about the drilling process. Mud -pulse telemetry is currently the most ..... rates from greater depths. As a result, mud -pulse telemetry rates have improved to

  2. SAKHALIN RMR-Conclusion: Riserless mud -recovery system used in Sakhalin wells

    Magazine Articles

    Mon, 7 May 2007

    wells off Sakhalin Island using a riserless mud -recovery system from a semisubmersible rig. Part 1 of this series ..... additional visual aid for monitoring the mud level in the suction module. Under steady ..... mode with the pump speed, and hence the mud level, controlled by the pressure sensor

  1. Critical Mud Weight—1: Analytical method predicts critical mud weight in horizontal wells

    Magazine Articles

    Mon, 3 Oct 2005

    Determining the critical or optimum mud weight is not an easy task, especially when drilling horizontal wells. Drilling mud weight is an important factor in drilling ..... directly or indirectly related to drilling mud . For horizontal wells, the situation becomes

  2. Multiphase technique improves mud -pulse velocity calculations

    Magazine Articles

    Mon, 1 Jul 2002

    The drilling industry employs mud -pulse telemetry worldwide to transmit drilling and ..... the bottomhole. Current models consider the drilling mud to be a single phase through which the mud pulses travel. More realistically, however, drilling

  3. Mud gas isotope logging (MGIL) assists in oil and gas drilling operations

    Magazine Articles

    Mon, 26 May 2003

    that are collected from the circulating mud stream during drilling. A new technique ..... The authors 1 2 have termed this technique mud gas isotope logging (MGIL). The technique ..... charged intervals identified by standard mud gas or wireline techniques, assess vertical

  4. Polymer mud system improves well condition

    Magazine Articles

    Mon, 12 Jun 2000

    conclusion describes how bentonite water-base mud systems also improved penetration rates ..... costs in relation to nondamaging polymer mud systems. In more than 250 horizontal wells ..... use of a thin, nondamaging XC-polymer mud system provided a more-efficient and economical

  5. Critical Mud Weight-Conclusion: Analysis identifies safe mud weights for horizontal wells

    Magazine Articles

    Mon, 17 Oct 2005

    analysis delineates the boundaries for safe mud weights as a function of different formation ..... main factors that influence the critical mud weight, above which a formation may fracture ..... Also the pressure exerted by the drilling mud , wellbore inclination and orientation

  6. New mud pump increases capacity, minimizes vibration

    Magazine Articles

    Mon, 26 Nov 2001

    applications using rotary steerable systems, mud motors, and bottomhole assemblies that require higher mud pump pressures and flow rates. To meet this ..... building and renovating rigs with increased mud pumping capacity, giving drilling engineers

  7. Durable hammer-union transmitter improves mud -pulse response

    Magazine Articles

    Mon, 6 Dec 1999

    improved the accuracy and response time for mud -pulse communications used in most directional ..... operations. Pressure regimes Control the flow of mud within the directional drilling process ..... cooling, lubrication, hole cleaning, and mud -motor hydraulics, it is necessary accurately

  8. AFR: E. Java mud flow damage understated

    Magazine Articles

    Mon, 22 Sep 2008

    clean-up bill from the world’s largest mud volcano in East Java” because the “disaster cannot be contained ..... problems near the site the day before the mud volcano erupted. “Presuming it paid 18 ..... courses of action to mitigate them: Pipe the mud to the sea at a cost of $1.9 billion

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