Patent ID: 6615925
Filing Date: 2003-09-09
Classification: E21B,F04B

Abstract:
An apparatus and system control for the removal of fluids and gas from a well having a well casing comprising:a bailer tube sized to allow an up and down travel of said bailer tube inside the well casing and inside a bailer tube housing assembly vertically aligned with the well casing; the bailer tube housing assembly having at least one valve for selectively opening the bailer tube housing assembly when allowing the bailer tube to travel into the well casing and for closing the bailer tube housing assembly after the bailer tube has traveled up into the bailer tube housing assembly and for directing a captured column of oil to a temporary storage tank; a programmable logic controller for monitoring, operating and controlling the apparatus and for translating readable information to obtain and record operational parameters; a lower end of the bailer tube having a bailer valve for selectively capturing the column of oil inside the well casing when said bailer tube is lowered therein, and for discharging said captured column of oil into the temporary storage tank when said bailer tube is raised out of the well casing, the bailer valve being in operative communication with the programmable logic controller; wherein the lower end of the bailer tube further includes at least one sensor in operative communication with the programmable logic controller for differentiating between the water and oil inside the well casing as the bailer tube descends therein, the at least one oil and water sensor facilitating the defining of a top of the water and a bottom of a well casing column of oil; wherein the programmable logic controller calculates a substantially optimum depth required for removal of oil without water from the well casing and once correctly positioned, the bailer valve is closed thereby capturing oil inside said bailer tube and the bailer tube is elevated so that the bailer valve is inside the bailer housing assembly and above the at least one valve at which location, the at least one valve is closed after which the bailer valve is opened and the captured oil in the bailer tube is discharged into the temporary storage tank, wherein the at least one valve, the driven winch means, the at least one oil and water sensor are each in electrical and operative communication with the programmable logic controller, and wherein the programmable logic controller controls and monitors the speed of the bailer tube inside the well casing as the bailer tube is being lowered into and elevated out of the well casing.