Whether the fracturing fluid and the oil pumped together?

There will be a small part of the process because there is flowback, most fracturing fluid flowback will be up, but very few will be left in the ground or have been drawn up and the oil together, but also through post-processing of oil, so it was not affected.
Whether it is  Ceramic proppant  and fracturing fluid injected together? After mixing was what state? Is fluid and Proppant  carrying sand mixed down to the ground, to the bottom of the wellbore and a crosslinking agent mixed to form jelly.
Proppant flowback is liquid (vegetable gum-based raw materials) is discharged back to the wellbore in order to protect the formation. In this step will need breaker.  frac sand  for oil exploration onshore or offshore and onshore exploration can use? Can not seam fracturing? Proppant type? Sea, land can be used, can also be used for coal seam fracturing.
hydraulic fracturing process is usually two hours, ceramic injection process is very short. Hydraulic fracturing step
1. Well and layer selection: the cost of fracturing a well is generally from 500 thousand to 1 million yuan, an oil reservoir with multi-layered general.
2. Fracturing design
3. Pre-construction preparation fracturing: According to different wells have different design requirements can be broadly divided into the following steps:
1). Pressure test: The wellhead equipment, ground facilities ability to withstand the testing process.
2) was added Preflush active water: the purpose is broken strata, causing cracks in certain geometries, to prepare for the entry of sand-carrying fluid can also clean the

wellbore surrounding impurities.
3). Proppant solution: its role is to be ground into the fracture proppant and brought to a predetermined position of the fracture, as well as extension of crack formation in

the cooling effect.
4). Replace fluid: the aim is to promote the sand-carrying fluid, be sent to a predetermined position.
5). Shut: According to different designs of wells, typically 4-12 hours.