Apparatus and process for adding chemicals

Claim 2

A CHEMICAL IINLET VALVE CAPABLE OF CONNECTION TO A CHEMICAL RESERVOIR;

Claim 3

A CONTAINER CONNECTED TO (1) FOR HOLDING A MEASURED AMOUNT OF CHEMICAL;

Claim 4

A CONTAINER CONNECTED TO (1) FOR HOLDING A MEASURED AMOUNT OF CHEMICAL;

Claim 5

a chemical measuring container operatively connected to said chemical inlet valve for holding a measured amount of chemical, said chemical inlet valve and said chemical measuring chamber being positioned with respect to each other so as to allow the chemical to pass from and through said chemical inlet valve to said chemical measuring chamber by gravity flow,

Claim 6

a chemical measuring container operatively connected to said chemical inlet valve for holding a measured amount of chemical, said chemical inlet valve and said chemical measuring chamber being positioned with respect to each other so as to allow the chemical to pass from and through said chemical inlet valve to said chemical measuring chamber by gravity flow,

Claim 7

The apparatus of claim 1 wherein said timer means includes programming means for automatically opening and closing each of said valves at predetermined times independently of each other.

Claim 8

The apparatus of claim 1 wherein said chemical measuring container is a fixed size chemical measuring container.

Claim 9

a chemical discharge valve operatively connected to said chemical measuring container, said chemical discharge valve being positioned with respect to said chemical inlet valve and said chemical measuring chamber so as to allow the chemical to pass from said chemical measuring chamber to said chemical discharge valve by gravity flow,

Claim 10

a chemical discharge valve operatively connected to said chemical measuring container, said chemical discharge valve being positioned with respect to said chemical inlet valve and said chemical measuring chamber so as to allow the chemical to pass from said chemical measuring chamber to said chemical discharge valve by gravity flow,

Claim 11

A CHEMICAL DISCHARGE VALVE FOR (2); (1), (2) AND (3) BEING IN GRAVITY RELATIONSHIP;

Claim 12

A CHEMICAL DISCHARGE VALVE FOR (2); (1), (2) AND (3) BEING IN GRAVITY RELATIONSHIP;

Claim 13

A FLUID INLET VALVE CONNECTED TO A FLUID FLOW LINE, SUCH AS A BY-PASS LINE WHICH, IS CONNECTED TO A FLOW LINE, SUCH AS FROM AN OIL WELL, AND CONNECTED TO (3), AND AN EXIT FLOW LINE THEREFROM;

Claim 14

A FLUID INLET VALVE CONNECTED TO A FLUID FLOW LINE, SUCH AS A BY-PASS LINE WHICH, IS CONNECTED TO A FLOW LINE, SUCH AS FROM AN OIL WELL, AND CONNECTED TO (3), AND AN EXIT FLOW LINE THEREFROM;

Claim 15

an exit flow line means operatively connected to said chemical discharge valve for receiving said chemical passing through and from said chemical discharge valve,

Claim 16

an exit flow line means operatively connected to said chemical discharge valve for receiving said chemical passing through and from said chemical discharge valve,

Claim 17

The apparatus of claim 1 wherein said exit flow line means is positioned with respect to said chemical discharge valve so as to allow said chemical to pass from said discharge valve to said exit flow line means by gravity flow.

Claim 18

a fluid flow line means for receiving well fluid from the well and said chemical from said exit flow line means, said fluid flow line means being operatively connected to said exit flow line means,

Claim 19

a fluid flow line means for receiving well fluid from the well and said chemical from said exit flow line means, said fluid flow line means being operatively connected to said exit flow line means,

Claim 20

A TIMER WHICH SYNCHRONIZES THE OPERATION OF SAID VALVES SO THAT A MEASURED AMOUNT OF CHEMICAL ENTERS THE SYSTEM AND IS FLUSHED BY FLUIDS THROUGH THE BY-PASS LINE OF (40 INTO THE SYSTEM SUCH AS A WELL. THE APPARATUS AND PROCESS CAN ALSO BE ADAPTED TO OTHER SYSTEMS WHERE AUTOMATIC ADDITION OF CHEMICALS IS REQUIRED.

Claim 21

A TIMER WHICH SYNCHRONIZES THE OPERATION OF SAID VALVES SO THAT A MEASURED AMOUNT OF CHEMICAL ENTERS THE SYSTEM AND IS FLUSHED BY FLUIDS THROUGH THE BY-PASS LINE OF (40 INTO THE SYSTEM SUCH AS A WELL. THE APPARATUS AND PROCESS CAN ALSO BE ADAPTED TO OTHER SYSTEMS WHERE AUTOMATIC ADDITION OF CHEMICALS IS REQUIRED.

Claim 22

A process for treating an oil well with an oil well chemical such as corrosion inhibitors, scale preventives, paraffin deposit inhibitors, demulsifiers, wetting agents, bactericides and the like, comprising, in combination, passing a predetermined amount of said chemical from its reservoir by gravity flow through an automaticaLly operated open chemical inlet valve to a chemical measuring container, automatically closing said chemical inlet valve after a predetermined amount of said chemical has reached said container, then passing by gravity flow said predetermine amount of said chemical from said container through an automatically operated open chemical discharge valve through an exit flow line into the well and to an automatically closed by-pass fluid flow line operatively connected to said exit flow line, said automatically closed by-pass fluid line having positioned therein an automatically operated fluid inlet valve operatively connected to the oil well, then automatically closing said chemical discharge valve, then automatically opening said fluid inlet valve, thereby opening said by-pass fluid line, and then allowing the well fluids to cause the circulation of said chemical through said well through said fluid inlet valve, said by-pass fluid line, said exit fluid line and said well without any pumps or other driving forces for a predetermined time, thereby automatically synchronizing the operation of said valves to allow a measured amount of said chemical to enter and circulate through said well for said predetermined time.

Claim 23

A process for treating an oil well with an oil well chemical such as corrosion inhibitors, scale preventives, paraffin deposit inhibitors, demulsifiers, wetting agents, bactericides and the like, comprising, in combination, passing a predetermined amount of said chemical from its reservoir by gravity flow through an automaticaLly operated open chemical inlet valve to a chemical measuring container, automatically closing said chemical inlet valve after a predetermined amount of said chemical has reached said container, then passing by gravity flow said predetermine amount of said chemical from said container through an automatically operated open chemical discharge valve through an exit flow line into the well and to an automatically closed by-pass fluid flow line operatively connected to said exit flow line, said automatically closed by-pass fluid line having positioned therein an automatically operated fluid inlet valve operatively connected to the oil well, then automatically closing said chemical discharge valve, then automatically opening said fluid inlet valve, thereby opening said by-pass fluid line, and then allowing the well fluids to cause the circulation of said chemical through said well through said fluid inlet valve, said by-pass fluid line, said exit fluid line and said well without any pumps or other driving forces for a predetermined time, thereby automatically synchronizing the operation of said valves to allow a measured amount of said chemical to enter and circulate through said well for said predetermined time.

Claim 24

a fluid inlet valve operatively connected to said fluid flow line means, and

Claim 25

a fluid inlet valve operatively connected to said fluid flow line means, and

Claim 26

timer means operatively connected to said valves for automatically synchronizing the operation of said valves whereby a measured amount of said chemical enters the well through said exit flow line means and circulates through said well, said fluid inlet valve, said fluid flow line means and said exit flow line means for a predetermined time period.

Claim 27

timer means operatively connected to said valves for automatically synchronizing the operation of said valves whereby a measured amount of said chemical enters the well through said exit flow line means and circulates through said well, said fluid inlet valve, said fluid flow line means and said exit flow line means for a predetermined time period.