Section R. 460.861 - Determination of well capacityRule 11.
(1) The producing or open flow capacities of wells to be used as a basis for proration shall be determined by the commission at its discretion, when necessary for the practical, equitable and economical operation of wells, pools or fields. The method of determining said capacity where practicable shall avoid the waste of gas encountered in the "open flow" test method, and shall make use of the United States bureau of mines production capacity test method that is based on observations of shut-in well pressure and the measurement of volumes of gas production at varying wellhead pressures, or of any improvements that may be approved by the commission.(2) Capacity tests may also be made by producers, purchasers or transmitters with the approval of the commission. The commission may require that any applicant for such test shall make a sufficient showing of necessity for a test. All information obtained from such tests shall be promptly compiled and filed with the commission.(3) When a producer is dissatisfied with a capacity test he may require the commission to redetermine the open flow capacity of the well by notifying it to that effect and depositing the sum of $10.00 with it. If the retest shows the original test to be materially in error, the deposit will be refunded, otherwise it will be retained as nominal compensation for the costs incurred in making the test.(4) Records of tests of meters, well capacity tests or tests of specific gravity, chemical composition or heating value of gas made by or on the order of any producer, transmitter, purchaser, distributor, or consumer shall be available for information of the commission, and reports shall be filed with the commission when requested.Mich. Admin. Code R. 460.861