Horizontal well borehole cleaning treatment process considering cuttings bed phenomenon

• Main Authors: HE SHIMING, WANG HANCHANG, XIE YUSEN, JING YADONG, ZHANG GUANGFU, ZHAO CHENMIN, TANG MING, KONG LINGHAO, WANG SHUANGNING
• Format: Patent
• Language: Chinese; English
• Published: 08.03.2024
• Subjects: CALCULATING; COMPUTING; COUNTING; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; ELECTRIC DIGITAL DATA PROCESSING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PHYSICS

The invention relates to a horizontal well borehole cleaning treatment process considering a cuttings bed phenomenon, and belongs to the field of petroleum drilling. The invention discloses a horizontal well borehole cleaning treatment process considering a cuttings bed phenomenon. The horizontal well borehole cleaning treatment process comprises the following steps: determining basic parameters of a cuttings bed in a target area; based on numerical calculation, an ultra-deep well annulus pressure drop prediction model is established, and annulus flow is obtained; a horizontal well rock debris migration multi-field coupling migration model is established, and simulation calculation is conducted; according to a simulation calculation result, carrying out rock debris accumulation resistant drilling fluid system optimization; and performing borehole cleaning by using the optimized drilling fluid system. According to the method, the well cleaning of the horizontal well under the condition of considering the cutti