methods and systems are described for stimulating a subterranean hydrocarbon - bearing reservoir , one method comprising contacting the formation with a treating fluid , and monitoring the movement of the treating fluid in the reservoir by providing one or more sensors for measurement of temperature and / or pressure which is disposed on a support adapted to maintain a given spacing between the sensors and the fluid exit . in some embodiments the support is coiled tubing . this abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure . it will not be used to interpret or limit the scope or meaning of the claims .