Claims
- 1. A method of heating a chemical solution used in a well bore or pipeline, the method comprising:
- providing a diesel engine;
- producing a gas exhaust from said diesel engine;
- producing a water exhaust from said diesel engine;
- providing a hydraulic oil pump operatively connected to said diesel engine;
- providing hydraulic oil to the hydraulic oil pump, thereby pumping said hydraulic oil;
- providing hydraulic oil backpressure controller, thereby controlling the backpressure on the hydraulic oil pump outlet;
- channeling said gas exhaust to a gas exhaust heat exchanger;
- channeling said water exhaust to a water exhaust heat exchanger;
- providing a chemical solution, said chemical solution comprising an acid;
- injecting said chemical solution into said water exhaust heat exchanger, thereby heating said chemical solution;
- injecting said chemical solution into said gas exhaust heat exchanger, thereby heating said chemical solution;
- injecting said heated chemical solution into said wellbore or pipeline.
- 2. The method of claim 1 wherein the heated chemical solution is injected into a wellbore.
- 3. The method of claim 1 wherein the heated chemical solution is injected into a pipeline.
- 4. The method of claim 1 wherein the heated chemical solution comprises one or more of the group consisting of hydrochloric acid, hydrofluoric acid, ethylenediaminetetraaceticacid, or mixtures thereof.
- 5. The method of claim 1 wherein the heated chemical solution comprises one or more of the group consisting of hydrochloric acid, hydrofluoric acid, or mixtures thereof.
- 6. The method of claim 1 further comprising providing a hydraulic oil heat exchanger, channeling said hydraulic oil to said heat exchanger, and injecting said chemical solution into said heat exchanger, thereby heating said chemical solution.
- 7. The method of claim 6 wherein the heated chemical solution is injected into a wellbore.
- 8. The method of claim 6 wherein the heated chemical solution is injected into a pipeline.
- 9. The method of claim 6 wherein the heated chemical solution comprises one or more of the group consisting of hydrochloric acid, hydrofluoric acid, ethylenediaminetetraacetic acid, or mixtures thereof.
- 10. The method of claim 9 wherein the chemical solution further comprises paraffin inhibitors, diesel oil, or mixtures thereof.
- 11. The method of claim 6 wherein the heated chemical solution comprises one or more of the group consisting of hydrochloric acid, hydrofluoric acid, or mixtures thereof.
- 12. The method of claim 6 wherein the heated chemical solution is injected into pipeline or wellbore through coiled tubing.
- 13. The method of claim 6 wherein the heated chemical solution is between about 180.degree. and about 300.degree. F.
Parent Case Info
This is a continuation of application Ser. No. 08/772,314, filed Dec. 23, 1996 now U.S. Pat. No. 5,988,280.
US Referenced Citations (21)
Non-Patent Literature Citations (1)
Entry |
Walker, et al. "Heated Acid for Improved Stimulation Results," SPE # 13371, Oct. 31, 1984, pp. 159-163. |
Continuations (1)
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Number |
Date |
Country |
Parent |
772314 |
Dec 1996 |
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