Articles comprising a surface spreading agent, oilfield water storage systems employing the same, and methods of managing the oilfield water storage systems

An oilfield water storage system comprising:

• a water storage pond having a surface;
• a unit adapted to receive an article comprising a film-forming composition, wherein the film-forming composition is packaged in a water-soluble impervious material, wherein the film-forming composition comprises:
• a surface spreading agent present in an amount of at least 5 weight percent, based on a total weight of the film-forming composition;
• a densifying agent having a higher density than water and the surface spreading agent, wherein the densifying agent is chosen from silica sand, slag sand, pea gravel, metal powders, or a combination thereof;
• and
• a dissolution agent chosen from calcium hydroxide, hydrated lime, or a combination thereof;
• wherein the film-forming composition includes a sufficient amount of the densifying agent to render the film-forming composition denser than water;
• wherein the unit is further adapted to distribute the film-forming composition into the water storage pond by introducing the article including the water-soluble impervious material into the water storage pond whereby the water-soluble impervious material subsequently dissolves to release the film-forming composition into the water storage pond;
• and
• a water outlet pipe in fluid communication with the water storage pond below the surface of the water storage pond.

A method of managing an oilfield water storage system, wherein the method comprises:

• applying a film-forming composition from an article comprising the film-forming composition packaged in a water-soluble impervious material to a water storage pond of the oilfield water storage system, wherein the film-forming composition comprises:
• a surface spreading agent present in an amount of at least 5 weight percent, based on a total weight of the film-forming composition;
• a densifying agent having a higher density than water and the surface spreading agent, wherein the densifying agent is chosen from silica sand, slag sand, pea gravel, metal powders or a combination thereof;
• and
• a dissolution agent chosen from calcium hydroxide, hydrated lime, or a combination thereof;
• wherein the film-forming composition includes a sufficient amount of the densifying agent to render the film-forming composition denser than water, and
• wherein applying the film-forming composition comprises introducing the article including the water-soluble impervious material into the water storage pond.