ECONOMIC APPROACH TO OIL PRODUCTION AND GAS ALLOCATION IN CONTINUOUS GAS LIFT.

Abstract

Allocation of gas to wells on continuous lift can affect profitability. Excessive gas input is costly because of high gas prices and comressing costs. Inefficient gas allocation in a field with limited gas availability also reduces profitability. To alleviate the problem of excessive gas usage, an economic slope that relates liquid production and gas injection to cost and profit has been developed. To resolve the problem of gas allocation in a field with limited gas, a method to allocate gas to wells efficiently under this situation is presented and a step by step procedure is given. An example problem consisting of a six-well field is solved to illustrate the procedures presented.