| 摘要 |
On a portable frame skid base, a receiving tank is mountable and centered to engage therein a production casing of a well to be bailed. A sectional frame hoisting tower is mountable over the tank for suspending a pipe bailer therein and in alignment with the production casing. The bailer is bottom operated by means of a ball valve and downwardly extending 'stinger' in frictional cooperation with engaging rolls mounted in the tower. A wire line drum has an adjustable flange for the proper spooling of a range of sizes of wire line connected to bailer. An electric motor and reduction gear is mountable on the skid base adjacent the drum for driving it in reversible rotation as directed by automated motor controls and safety controls operable by mechanical feedback from drum and apparatus to continuously or intermittently bail a well in accordance with establishable parameters, and to shut it down in case of malfunction. The tank and tower can be enclosed to make them gas-proof for use with gassy wells, and lined with non-corroding material for use with sour wells.
|
