Currently

the large-displacement slickwater fracturing process has become the primary method for developing unconventional oil and gas resource. However

the efficiency of this process is limited by the sand carrying capacity of slickwater

which results in rapid settlement and short migration distance of the proppant within the fractures

leading to a need for further improvement in the reservoir transformation effect. To address this issue

a water-soluble material is applied to coat the surface of the self-suspending proppant

enhancing its suspension effect in slickwater or clear water and thereby increasing the crack support volume. The self-suspending proppant meets the required technical standards

showing a total suspension time of less than 40 seconds in tap water at a 20 % sand ratio

and maintaining stable suspension for over two hours at 90 ℃ even during thorough mixing. In a practical on-site test at Mahu sandstone reservoir in Xinjiang Oilfield

continuous sand carrying was achieved using clean water

reaching a maximum sand concentration of 480 kg/m3 while maintaining stable construction pressure. The successful application of self-suspending proppant clear water fracturing technology in Xinjiang oilfield serves as a valuable reference for the selection of oil and gas resource technology in the future stage.