General

An adequate chemical treatment program utilizing selection of proper corrosion inhibitors and application techniques is necessary for optimum performance of sucker-rod pumping equipment in a corrosive environment. However, control of direct attack on pump materials may be accomplished by materials selection alone or by materials selection in combination with chemical treatment.

The recommended materials in this standard are presented in tables and listed in order of preferred usage in six different environments with varying degrees of corrosiveness and with and without possible abrasion. The listed materials have performed satisfactorily when used in the specified environments. These material recommendations are based on field experience.

This standard is not intended to preclude the development and testing of new materials that might improve sucker-rod pump performance. It is the responsibility of the user to fully evaluate the performance of any new material prior to its use.

The designations and mechanical properties of the materials covered by this standard are listed in selected tables.

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