Chinese oil network news in late October, supporting technical problems seriously affect the effective pressure drilling pressure passed through the long horizontal section, 15.06 days drilled to 2350 meters deep well drilled by the Research Institute of Tuha oilfield oil chemical engineering technical service of drilling fluid Niu Dongping 77-1 well, a design after drilling cycle reduced 51.42%. A record for the shortest drilling cycle.
Niu Dongping 77-1 well is deployed in Tuha oilfield of Santanghu Oilfield Block Niudong in a horizontal well, the design level of 670 meters.
In order to solve the problem of long horizontal wells into serious pressure and restrict the technical problems of drilling speed, in the construction process of the wells, continuous improvement and optimization of weak gel drilling fluid properties of Turpan Hami oil by Academy of engineering and technical personnel, the application of new lubricant WR-1 independent R & D and production, drilling fluid cake viscosity control in 0.0437 to 0.0524 effectively, improve the lubricating performance of weak gel drilling fluid system, solve the technical bottleneck of long horizontal section drilling pressure affects the drilling pressure transfer, to ensure that the level of safety and fast drilling.
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