Lect3_Mud logging - WELL-SITE MUD LOGGING Mud logging...

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WELL-SITE MUD LOGGING Mud logging, involves the rig-site monitoring and assessment of information that comes to the surface while drilling. During the drilling of a well there will typically be a mud-logging unit on the rig. This unit has two main responsibilities: 1. To monitor the drilling and gas/liquids/solids returns from the well. 2. To provide information to the petroleum engineering department. Objective There are several broad objectives targeted by mud logging: identify potentially productive hydrocarbon-bearing formations , identify geological formations and provide data to the driller that enables safe and economically optimized operations. The actions performed to accomplish these objectives include the following: 1. Collecting drill cuttings. 2. Describing the cuttings (type of minerals present). 3. Interpreting the described cuttings (lithology). 4. Estimating properties such as porosity and permeability of the drilled formation. 5. Maintaining and monitoring drilling-related and safety-related sensing equipment. 6. Estimating the pore pressure of the drilled formation. 7. Collecting, monitoring, and evaluating hydrocarbons released from the drilled formations. 8. Assessing the producibility of hydrocarbon-bearing formations.
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  • Spring '14
  • Petroleum Engineering Department

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