Patent ID: 9702508
Date: 2017-07-11
CPC Classifications: E21B,F17D,Y10T

Claim:
1. A metering and well selection valve group, comprising: multiple shells each having a fluid outlet; multiple check and stop dual purpose angle valves, each corresponding to a respective one of the shells; and a rotary type metering distributor, wherein: each shell includes an elbow that has a first part inside the shell, a second part that extends from one side of the shell, and a third part that extends from another side of the shell, the first part of the elbow inside the shell being provided with filtering holes; the rotary type metering distributor includes a case body having inlets, a first valve, and a blocking removal fluid outlet chamber; each check and stop dual purpose angle valve includes a valve casing, an inlet pipe provided at one end of the valve casing, and a valve stem mounted at another end of the valve casing, the valve stem having an outer end outside the valve casing and an inner end inside the valve casing; one side of the valve casing communicates with an outlet pipe, a valve base is provided in the valve casing, a valve element is provided on an inside of the valve base, and the valve element is mounted in together with a cover body; a handwheel is mounted on the outer end of the valve stem, the inner end of the valve stem passes through the cover body and is fixed on a spring stop; a first spring is mounted between the spring stop and the valve element; the outlet pipe communicates with the inlets of the case body, and the third part of the elbow communicates with the blocking removal fluid outlet chamber of the case body via the first valve of the case body.