127results about How to "Increase oil output" patented technology

The invention provides a paraffin rosin water plugging agent for water plugging of a thick oil huff-puff well and a water plugging construction method. The water plugging agent for the water plugging of the thick oil huff-puff well is mixed liquid prepared by paraffin, rosin and water. The water plugging construction method of the thick oil huff-puff well comprises the steps that the paraffin-rosin mixed liquid water plugging agent provided by the invention is filled into a stratum to be treated for selective water plugging, and in addition, the temperature of the water plugging agent in the filling process is ensured to be higher than the freezing point temperature of the paraffin and the softening point temperature of the rosin. The technology provided by the invention is utilized, because the construction temperature during the water plugging agent filling is higher than the freezing point temperature of the paraffin and the softening point temperature of the rosin, water and solidcontent objects such as the paraffin, the rosin and the like form liquid-liquid mixed phases, and the liquid-liquid mixed phases can easily enter the deep part of the stratum; after the mixed phases are squeezed into the stratum, the paraffin and the rosin are crystallized and separated out along with the heat exchange when the temperature is lower than 55 DEG C, and the paraffin and the rosin are dissolved after meeting oil and are unchanged after meeting water, so the selective water plugging is realized; and simultaneously, the cold damage problem can be effectively avoided.

The invention relates to the technical field of water distributors, and discloses a bridge type concentric constant-pressure intelligent water distributor used for a water injection well. The distributor comprises an upper joint pipe, a water distributor body is fixedly mounted on the bottom of the upper joint pipe, a lower joint pipe is fixedly mounted on the bottom of the water distributor body,the bottom of an inner cavity of the upper joint pipe is fixedly sleeved with a seal ring, a hollow groove is formed in one side of the water distributor body, a sensor is fixedly mounted in an innercavity of the hollow groove, the top of the sensor is fixedly connected with a cable, one end of the cable penetrates to the top of the water distributor body and extends to the ground, and one end of the cable is fixedly connected with a fixed plate. According to the bridge type concentric constant-pressure intelligent water distributor used for the water injection well, through cooperation of awater injection pressure device, a micro hydraulic pump and a seal plug, water can be better injected into different layers conveniently, the problem that in the water injection process, the injectedwater amount cannot be accurately mastered, and the oilfield exploitation oil pump capacity is small is solved, and the oilfield exploitation oil pump capacity is improved.