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PROCESS FOR PRODUCING A POLYMERIC SEA WATER-BASED FLUID CONTAINING POTASSIUM CHLORIDE FOR ONSHORE AND OFFSHORE WELL DRILLING
PROCESS FOR PRODUCING A POLYMERIC SEA WATER-BASED FLUID CONTAINING POTASSIUM CHLORIDE FOR ONSHORE AND OFFSHORE WELL DRILLING
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机译：用于制备海上和海上钻井的含氯化钾的聚合物水性水的方法
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摘要
The polymeric sea water-based fluid containing potassium chloride for onshore and offshore well drilling, and for drilling clayey formations in onshore wells and offshore wells, is produced via the process according to the invention, and is designed for drilling formations with a low or medium clayiness, but is not limited to this type of well formation if the circumstances justify it. The drilling of the clayey zones with the system of polymeric sea water-based fluid containing potassium chloride fulfills the rheological technical requirements for achieving cuttings transport and suspension, the control of the filtering, lubricity and inhibition of clays. The polymeric sea water-based fluid for drilling clayey formations in onshore wells and offshore wells produced via the process according to the invention is mainly composed of sea water and polymeric liquid products of new-generation technology, which are high-performance, and which are simple to prepare and quick to homogenise, thereby minimising the logistics of ships and ensuring the continuous supply of the fluid volume during the drilling, in order to prevent non-productive times, thereby guaranteeing the lowering of the casing pipes in the estimated time, without operational logistical delays. The polymeric sea water-based fluid containing potassium chloride produced via the process according to the invention is designed for zones with a clayiness of 15.0 to 50.0 meq/100 mg of clay, with the proposed "base" concentration, and can control more highly reactive clays.
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