| 摘要 |
<p>1,019,177. Delivering measured quantities of liquid. TEXAS PETROLEUM CO. Aug. 18, 1964 [Aug. 26, 1963], No. 33771/64. Heading B8N. [Also in Division El] Apparatus for testing the production of individual wells in a group of wells in a predetermined sequence comprises timing means for controlling the switching from one well to the next after a predetermined time, and overriding means for controlling the switching of one well to the next if a predetermined quantity of production flows from a well under test before the predetermined time. Production from the wells flows through lines 11, ... 14 having pneumatically controlled valves 24,.. .27, the arrangement being that pressure is applied to one valve to direct production of its well through a line 29 to a test separator 30 whilst the production from the remaining wells flows through a line 17 to a production separator. The operating pressure is directed to the valves in turn by a distributer 34 rotated by a pneumatic motor 44 driven by pressure pulses in a line 49. A clockwork 50 drives a wheel 55 through a friction clutch 52, pins 71 on the wheel actuating an arm 70 operating a valve (not shown) causing the pulses in the line 49. Liquid from the separator 30 passes through a valve 91 to a float chamber 84. In the chamber full position of the float, air is directed by a line 92 to open valve 93 and close valve 91 to empty the float chamber, and air is also directed by a line 97 to actuate a reciprocating motor 78 having a pawl 79 engaging pins 83 on the wheel. After the chamber has been filled a predetermined number of times, the pawl has rotated the wheel so that the next pin engages the arm 70 unless it has already done so as a result of the rotation of the wheel by the clockwork.</p> |
