effectively defined by the inner well casing 270 a well annulus 276 is defined as the space between the well casing 260 and inner well casing 270 the wellhead 258 is capped to prevent communication of fluids from the inner well casing void 272 and well annulus 276 from reaching the atmosphere in this definition fluid includes liquids and gases a wellhead first t conduit 290 extends from one side of the wellhead 258 a wellhead first valve 294 regulates the flow of fluids from the wellhead 258 the wellhead first valve 294 is connected with a wellhead conduit 298 the wellhead conduit 298 transports fluids to a desired region such as a tank or pipeline on the opposite side of the wellhead 258 from the wellhead first t conduit 290 is a wellhead second t conduit 306 it is the noted that the wellhead first t conduit 290 and the wellhead second t conduit 306 are interchangeable while the wellhead first t conduit 290 and a wellhead second t conduit 306 are described as being on opposite sides and coaxially located to one another on the wellhead 258 such need not be the case a wellhead second t conduit takeoff pipe 308 extends from and is in fluid communication with the wellhead second t conduit 306 a wellhead takeoff pipe 310 extends from the wellhead second t conduit takeoff pipe 308 a filter apparatus 318 is in fluid communication with the.