Produced Water Management

The vast majority of water managed by Occidental is co-produced from hydrocarbon reservoirs with oil and gas; this is called produced water. Produced water occurs naturally in oil and gas reservoirs. After separating produced water at the surface from the produced oil and gas, Occidental often reinjects it into mature oil and gas reservoirs as part of its improved oil recovery (IOR) operations. Produced water is sometimes reused during drilling, completions and well stimulation – including hydraulic fracturing. When produced water is returned to its original source in deep geologic reservoirs, it is not consumed or removed from the environment. When produced water cannot be used beneficially, it is disposed of by injection into government-approved saltwater reservoirs designated for that purpose. 

Produced Water Management
(cubic meters per day)

 

 

 

South Texas

 

   Permian

Oman

Qatar

Recovery Phase

 

 

Primary

 

All

IOR

IOR

Products

 

 

Gas

 

Oil and gas

Oil and gas

Oil and gas

Produced Water

Generated

  

3,600

 

521,150

107,900

54,520

  Recycled or reused

  

<5

 

466,450

65,350

<5

  Percent of generated

  

100%

 

10%

39%

100%

Recycled or reused,
percent of generated

   

0%

 

90%

66%

0%