The Mud tanks system consists of equipment on board that contributes to the storage, mixing, circulation and purification of drilling fluid. Drilling fluid is very expensive and large volumes are used in connection with drilling a well. It is therefore desirable to reuse drilling mud.
Mud Cleaning System
The mud tank system removes drilling cuttings that come up from the hole along with the drilling mud so that the cleaned mud can be returned to the well. If the mud does not have the proper properties in relation to the well, it can result in major damage to the well and the drilling equipment. After the cleaning process, the drilling mud is carefully checked to make sure that the cleaning system has done a satisfactory job.
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Effective rotary steerable drilling systems overcome most of the problems with steerable motors by providing continuos pipe rotation while drilling. This is accomplished, with the tool reported on in this paper, with a non-rotating steerable sleeve containing three extendable pads that push against the borehole wall.
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A drilling fluid recycling system to remove solids from the drilling fluid so that the fluid can be re-used, a guidance system to accurately guide boring operations. All equipment shall be in good and safe operating condition with sufficient supplies, materials and spare parts on hand to maintain the system in good working order for the duration of the project.
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Horizontal directional drilling (HDD) becomes as a favorite crossing method in many situations for the installation of oil and gas pipelines as well as other utilities and transposition of obstacles. In all cases it is necessary to ensure the quality of pipeline design and construction/installation. The quality level of HDD section should required using the same criteria involving the entire pipeline project or other segment of the pipeline standard.
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