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In one embodiment a method and apparatus for an improved ball dropper is provided. In one embodiment the method and apparatus can be used to drop various objects into the well bore from the rig. In one embodiment, when the well is pressurized the tool can be loaded with one or more items to be dropp

In one embodiment a method and apparatus for an improved ball dropper is provided. In one embodiment the method and apparatus can be used to drop various objects into the well bore from the rig. In one embodiment, when the well is pressurized the tool can be loaded with one or more items to be dropped.

대표청구항 ▼

What is claimed is: 1. A side drop tool for launching items into a well conduit comprising: (a) a main body section having upper and lower portions; (b) a main passage through the main body section from the upper portion to the lower portion; (c) a side drop passage which intercepts the main passag

What is claimed is: 1. A side drop tool for launching items into a well conduit comprising: (a) a main body section having upper and lower portions; (b) a main passage through the main body section from the upper portion to the lower portion; (c) a side drop passage which intercepts the main passage; (d) a seal operatively connected to the side drop passage, separating the side drop passage into upper and lower portions, and the seal having open and closed states; and (e) a cap connected to the upper portion of the side drop passage, wherein when the seal is in an open state the cap seals the upper portion of the side drop passage and the upper portion of the side drop passage is fluidly connected with the lower portion of the side drop passage, and when the seal is in a closed state the upper portion of the side drop passage is fluidly sealed from the lower portion of the side drop passage. 2. The side drop tool of claim 1, wherein the seal is a valve. 3. The side drop tool of claim 2, wherein the valve is a ball valve. 4. The side drop tool of claim 1, further comprising a vent fluidly connected to the upper portion of the side drop passage. 5. The side drop tool of claim 4, wherein a valve is fluidly connected between the vent and upper portion of the side drop passage. 6. The side drop tool of claim 1, wherein the main body section includes an enlarged portion and the side drop passage is contained within the main body section. 7. The side drop tool of claim 1, wherein the enlarged portion has a frustoconical shape. 8. The side drop tool of claim 1, further comprising a by-pass allowing equalization of pressure in both the upper and lower portions of the side drop passage when the seal is in the closed state. 9. The side drop tool of claim 1, further comprising a ball to be dropped, the ball being located in the side drop passage. 10. The side drop tool of claim 1, wherein the cap fluidly seals the upper portion of the side drop passage. 11. The side drop tool of claim 1, wherein the cap is a plug. 12. The side drop tool of claim 11, wherein the plug is threaded. 13. The side drop tool of claim 11, wherein the plug is flush with the top of the upper portion of the side drop passage. 14. The side drop tool of claim 1, wherein the side drop passage is at a 20 degree angle in relation to the main passage. 15. The side drop tool of claim 1, wherein a plurality of side drop passages are included each of which is fluidly connected to the main passage. 16. A side drop tool for launching items into a well conduit comprising: (a) a main body section having upper and lower portions; (b) a main passage through the main body section from the upper portion to the lower portion; (c) a side drop passage which intercepts the main passage, the side drop passage having upper and lower portions; (d) wherein the main body section includes an enlarged portion and the side drop passage is completely contained within the main body section; (e) a cap connected to the side drop passage, wherein the cap seals the side drop passage; (f) wherein the side drop passage includes a seal separating the upper and lower portions, and having open and closed states. 17. The side drop tool of claim 16, wherein the seal is a valve. 18. The side drop tool of claim 17, wherein the valve is a ball valve. 19. The side drop tool of claim 16, further comprising a vent fluidly connected to the upper portion of the side drop passage.