Radius horizontal well drilling technology by high-pressure water jet rock breaking

Into the nineties , the use of high technology to enhance the development of low permeability reservoirs and oil fields for enhanced oil recovery is to improve economic efficiency , ensure the stable development of an important measure. Radius horizontal well  synthetic diamond  by high-pressure water jet rock breaking , in the production of multi- layer direct drilled horizontal wells mouth radial distribution network , to achieve efficient development of low permeability reservoirs , the transformation of the old oil fields and enhanced oil recovery purposes,  polycrystalline diamond  in eastern China has good application prospects and strong vitality. The results from the preliminary study and field test situation, the use of rotating water jet in relatively soft formations or light oil in drilling, hole diameter of 80 ~ 110mm, to meet the requirements of oil and gas production , and have in depth about 1000m oil well drilled in  synthetic diamond powder  . However, if the radius horizontal well technology successfully applied even deeper reservoir depth of 2000m or harder formations , it is necessary to improve the jet rock breaking . Therefore, the purpose of utilization of abrasive water jet and rotary jet advantages and overcome their shortcomings , by experiment , researchers not only rock breaking ability, high drilling speed , but also has characteristics of drilling large diameter holes rotating abrasive jet . Abrasive Water Jet refers jet artificially added solid abrasive particles jet .